MGS-4530-1 add 6.2.4.p4 gpu driver for L4.19

add mxc config to include drivers/mxc/gpu-viv

Signed-off-by: Xianzhong <xianzhong.li@nxp.com>

drivers/Kconfig

@@ -228,4 +228,5 @@ source "drivers/interconnect/Kconfig"
 
 source "drivers/counter/Kconfig"
 
+source "drivers/mxc/Kconfig"
 endmenu

drivers/Makefile

@@ -186,3 +186,4 @@ obj-$(CONFIG_SIOX)		+= siox/
 obj-$(CONFIG_GNSS)		+= gnss/
 obj-$(CONFIG_INTERCONNECT)	+= interconnect/
 obj-$(CONFIG_COUNTER)		+= counter/
+obj-y		 		+= mxc/

drivers/mxc/Kconfig

@@ -0,0 +1,11 @@
+# drivers/mxc/Kconfig
+
+if ARCH_MXC
+
+menu "MXC support drivers"
+
+source "drivers/mxc/gpu-viv/Kconfig"
+
+endmenu
+
+endif

drivers/mxc/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_MXC_GPU_VIV) += gpu-viv/

drivers/mxc/gpu-viv/Kbuild

@@ -0,0 +1,326 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 - 2018 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014 - 2018 Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+#
+# Linux build file for kernel HAL driver.
+#
+AQROOT := $(srctree)/drivers/mxc/gpu-viv
+
+include $(AQROOT)/config
+
+soc_vendor    := $(firstword $(subst -, ,$(SOC_PLATFORM)))
+soc_board     := $(lastword  $(subst -, ,$(SOC_PLATFORM)))
+
+KERNEL_DIR ?= $(TOOL_DIR)/kernel
+
+OS_KERNEL_DIR   := hal/os/linux/kernel
+ARCH_KERNEL_DIR := hal/kernel/arch
+ARCH_VG_KERNEL_DIR := hal/kernel/archvg
+HAL_KERNEL_DIR  := hal/kernel
+TA_DIR          := hal/security_v1
+HOST := $(shell hostname)
+
+# Include platform config if exists.
+-include $(AQROOT)/$(OS_KERNEL_DIR)/platform/$(soc_vendor)/gc_hal_kernel_platform_$(soc_board).config
+
+MODULE_NAME ?= galcore
+CUSTOMER_ALLOCATOR_OBJS    ?=
+ALLOCATOR_ARRAY_H_LOCATION ?= $(OS_KERNEL_DIR)/allocator/default/
+
+EXTRA_CFLAGS += -Werror
+
+OBJS := $(OS_KERNEL_DIR)/gc_hal_kernel_device.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_linux.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_math.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_os.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_debugfs.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_allocator.o \
+        $(OS_KERNEL_DIR)/allocator/default/gc_hal_kernel_allocator_user_memory.o \
+        $(OS_KERNEL_DIR)/allocator/default/gc_hal_kernel_allocator_dma.o \
+        $(OS_KERNEL_DIR)/allocator/default/gc_hal_kernel_allocator_gfp.o \
+        $(OS_KERNEL_DIR)/allocator/default/gc_hal_kernel_allocator_reserved_mem.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_driver.o \
+        $(OS_KERNEL_DIR)/platform/$(soc_vendor)/gc_hal_kernel_platform_$(soc_board).o
+
+ifneq ($(CONFIG_DMA_SHARED_BUFFER),)
+OBJS += $(OS_KERNEL_DIR)/allocator/default/gc_hal_kernel_allocator_dmabuf.o
+endif
+
+ifneq ($(CONFIG_IOMMU_SUPPORT),)
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_iommu.o
+endif
+
+ifneq ($(CONFIG_DRM),)
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_drm.o
+endif
+
+OBJS += $(HAL_KERNEL_DIR)/gc_hal_kernel.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_command.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_async_command.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_db.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_debug.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_event.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_heap.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_mmu.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_video_memory.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_power.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_security_v1.o
+
+OBJS += $(ARCH_KERNEL_DIR)/gc_hal_kernel_context.o \
+        $(ARCH_KERNEL_DIR)/gc_hal_kernel_hardware.o
+
+ifeq ($(VIVANTE_ENABLE_3D), 1)
+OBJS += $(ARCH_KERNEL_DIR)/gc_hal_kernel_recorder.o
+endif
+
+ifneq ($(CONFIG_ARM64),)
+ifeq ($(CONFIG_ANDROID),)
+VIVANTE_ENABLE_VG=0
+endif
+endif
+
+ifeq ($(VIVANTE_ENABLE_VG), 1)
+OBJS +=\
+          $(HAL_KERNEL_DIR)/gc_hal_kernel_vg.o\
+          $(HAL_KERNEL_DIR)/gc_hal_kernel_command_vg.o\
+          $(HAL_KERNEL_DIR)/gc_hal_kernel_interrupt_vg.o\
+          $(HAL_KERNEL_DIR)/gc_hal_kernel_mmu_vg.o\
+          $(ARCH_VG_KERNEL_DIR)/gc_hal_kernel_hardware_command_vg.o\
+          $(ARCH_VG_KERNEL_DIR)/gc_hal_kernel_hardware_vg.o
+endif
+
+ifneq ($(CONFIG_SYNC),)
+EXTRA_CFLAGS += -Idrivers/staging/android
+EXTRA_CFLAGS += -DgcdLINUX_SYNC_FILE=1
+
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_sync.o
+else
+  ifneq ($(CONFIG_SYNC_FILE),)
+  EXTRA_CFLAGS += -DgcdLINUX_SYNC_FILE=1
+  OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_sync.o
+  endif
+endif
+
+ifeq ($(SECURITY), 1)
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_security_channel.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_security.o
+endif
+
+ifneq ($(CUSTOMER_ALLOCATOR_OBJS),)
+OBJS += $(CUSTOMER_ALLOCATOR_OBJS)
+endif
+
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_security_channel_emulator.o \
+        $(TA_DIR)/gc_hal_ta.o \
+        $(TA_DIR)/gc_hal_ta_hardware.o \
+        $(TA_DIR)/gc_hal_ta_mmu.o \
+        $(TA_DIR)/os/emulator/gc_hal_ta_emulator.o
+
+ifeq ($(KERNELRELEASE), )
+
+.PHONY: all clean install
+
+# Define targets.
+all:
+	@$(MAKE) V=$(V) ARCH=$(ARCH_TYPE) -C $(KERNEL_DIR) SUBDIRS=`pwd` modules
+
+clean:
+	@rm -rf $(OBJS)
+	@rm -rf modules.order Module.symvers .tmp_versions
+	@find $(AQROOT) -name ".gc_*.cmd" | xargs rm -f
+
+install: all
+	@mkdir -p $(SDK_DIR)/drivers
+	@cp $(MODULE_NAME).ko $(SDK_DIR)/drivers
+
+else
+
+
+EXTRA_CFLAGS += -DLINUX -DDRIVER
+
+ifeq ($(FLAREON),1)
+EXTRA_CFLAGS += -DFLAREON
+endif
+
+ifeq ($(DEBUG), 1)
+EXTRA_CFLAGS += -DDBG=1 -DDEBUG -D_DEBUG
+else
+EXTRA_CFLAGS += -DDBG=0
+endif
+
+ifeq ($(NO_DMA_COHERENT), 1)
+EXTRA_CFLAGS += -DNO_DMA_COHERENT
+endif
+
+ifeq ($(CONFIG_DOVE_GPU), 1)
+EXTRA_CFLAGS += -DCONFIG_DOVE_GPU=1
+endif
+
+ifneq ($(USE_PLATFORM_DRIVER), 0)
+EXTRA_CFLAGS += -DUSE_PLATFORM_DRIVER=1
+else
+EXTRA_CFLAGS += -DUSE_PLATFORM_DRIVER=0
+endif
+
+EXTRA_CFLAGS += -DVIVANTE_PROFILER=1
+EXTRA_CFLAGS += -DVIVANTE_PROFILER_CONTEXT=1
+
+ifeq ($(ENABLE_GPU_CLOCK_BY_DRIVER), 1)
+EXTRA_CFLAGS += -DENABLE_GPU_CLOCK_BY_DRIVER=1
+else
+EXTRA_CFLAGS += -DENABLE_GPU_CLOCK_BY_DRIVER=0
+endif
+
+ifeq ($(USE_NEW_LINUX_SIGNAL), 1)
+EXTRA_CFLAGS += -DUSE_NEW_LINUX_SIGNAL=1
+else
+EXTRA_CFLAGS += -DUSE_NEW_LINUX_SIGNAL=0
+endif
+
+ifeq ($(USE_LINUX_PCIE), 1)
+EXTRA_CFLAGS += -DUSE_LINUX_PCIE=1
+else
+EXTRA_CFLAGS += -DUSE_LINUX_PCIE=0
+endif
+
+ifeq ($(FORCE_ALL_VIDEO_MEMORY_CACHED), 1)
+EXTRA_CFLAGS += -DgcdPAGED_MEMORY_CACHEABLE=1
+else
+EXTRA_CFLAGS += -DgcdPAGED_MEMORY_CACHEABLE=0
+endif
+
+ifeq ($(CACHE_FUNCTION_UNIMPLEMENTED), 1)
+EXTRA_CFLAGS += -DgcdCACHE_FUNCTION_UNIMPLEMENTED=1
+else
+EXTRA_CFLAGS += -DgcdCACHE_FUNCTION_UNIMPLEMENTED=0
+endif
+
+ifeq ($(VIVANTE_ENABLE_3D),0)
+EXTRA_CFLAGS += -DgcdENABLE_3D=0
+else
+EXTRA_CFLAGS += -DgcdENABLE_3D=1
+endif
+
+ifeq ($(VIVANTE_ENABLE_2D),0)
+EXTRA_CFLAGS += -DgcdENABLE_2D=0
+else
+EXTRA_CFLAGS += -DgcdENABLE_2D=1
+endif
+
+ifeq ($(VIVANTE_ENABLE_VG),0)
+EXTRA_CFLAGS += -DgcdENABLE_VG=0
+else
+EXTRA_CFLAGS += -DgcdENABLE_VG=1
+endif
+
+ifeq ($(USE_BANK_ALIGNMENT), 1)
+    EXTRA_CFLAGS += -DgcdENABLE_BANK_ALIGNMENT=1
+    ifneq ($(BANK_BIT_START), 0)
+	        ifneq ($(BANK_BIT_END), 0)
+	            EXTRA_CFLAGS += -DgcdBANK_BIT_START=$(BANK_BIT_START)
+	            EXTRA_CFLAGS += -DgcdBANK_BIT_END=$(BANK_BIT_END)
+	        endif
+    endif
+
+    ifneq ($(BANK_CHANNEL_BIT), 0)
+        EXTRA_CFLAGS += -DgcdBANK_CHANNEL_BIT=$(BANK_CHANNEL_BIT)
+    endif
+endif
+
+ifeq ($(FPGA_BUILD), 1)
+EXTRA_CFLAGS += -DgcdFPGA_BUILD=1
+else
+EXTRA_CFLAGS += -DgcdFPGA_BUILD=0
+endif
+
+ifeq ($(SECURITY), 1)
+EXTRA_CFLAGS += -DgcdSECURITY=1
+endif
+
+ifneq ($(CONFIG_DRM), )
+    ifneq ($(CONFIG_ANDROID),)
+    EXTRA_CFLAGS += -DgcdENABLE_DRM=$(VIVANTE_ENABLE_DRM)
+    else
+    EXTRA_CFLAGS += -DgcdENABLE_DRM=0
+    endif
+else
+EXTRA_CFLAGS += -DgcdENABLE_DRM=0
+endif
+
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel/inc
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel/arch
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel/inc
+EXTRA_CFLAGS += -I$(AQROOT)/hal/os/linux/kernel
+EXTRA_CFLAGS += -I$(AQROOT)/$(ALLOCATOR_ARRAY_H_LOCATION)
+EXTRA_CFLAGS += -I$(AQROOT)/hal/security_v1/
+
+ifneq ($(CONFIG_ARM), )
+EXTRA_CFLAGS += -Iarch/arm/mm
+endif
+
+ifeq ($(VIVANTE_ENABLE_VG), 1)
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel/archvg
+endif
+
+EXTRA_CFLAGS += -DHOST=\"$(HOST)\"
+
+EXTRA_CFLAGS += -DgcdENABLE_TRUST_APPLICATION=1
+
+obj-$(CONFIG_MXC_GPU_VIV) = $(MODULE_NAME).o
+
+$(MODULE_NAME)-objs  = $(OBJS)
+
+endif

drivers/mxc/gpu-viv/Kconfig

@@ -0,0 +1,10 @@
+menu "MXC Vivante GPU support"
+
+config MXC_GPU_VIV
+	tristate "MXC Vivante GPU support"
+	default y
+
+	---help---
+         Say Y to get the GPU driver support.
+
+endmenu

drivers/mxc/gpu-viv/config

@@ -0,0 +1,72 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 - 2018 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014 - 2018 Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+ARCH_TYPE                         ?= arm
+SDK_DIR                           ?= $(AQROOT)/build/sdk
+VIVANTE_ENABLE_3D                 ?= 1
+VIVANTE_ENABLE_2D                 ?= 1
+VIVANTE_ENABLE_VG                 ?= 1
+VIVANTE_ENABLE_DRM                ?= 1
+NO_DMA_COHERENT                   ?= 0
+USE_PLATFORM_DRIVER               ?= 1
+ENABLE_GPU_CLOCK_BY_DRIVER        ?= 0
+FORCE_ALL_VIDEO_MEMORY_CACHED     ?= 0
+CACHE_FUNCTION_UNIMPLEMENTED      ?= 0
+USE_BANK_ALIGNMENT                ?= 1
+BANK_BIT_START                    ?= 13
+BANK_BIT_END                      ?= 15
+BANK_CHANNEL_BIT                  ?= 12
+SECURITY                          ?= 0
+SOC_PLATFORM                      ?= freescale-imx

drivers/mxc/gpu-viv/hal/kernel/arch/gc_hal_kernel_context.h

@@ -0,0 +1,188 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_context_h_
+#define __gc_hal_kernel_context_h_
+
+#include "gc_hal_kernel_buffer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Maps state locations within the context buffer. */
+typedef struct _gcsSTATE_MAP * gcsSTATE_MAP_PTR;
+typedef struct _gcsSTATE_MAP
+{
+    /* Index of the state in the context buffer. */
+    gctUINT                     index;
+
+    /* State mask. */
+    gctUINT32                   mask;
+}
+gcsSTATE_MAP;
+
+/* Context buffer. */
+typedef struct _gcsCONTEXT * gcsCONTEXT_PTR;
+typedef struct _gcsCONTEXT
+{
+    /* For debugging: the number of context buffer in the order of creation. */
+    gctUINT                     num;
+
+    /* Pointer to gckEVENT object. */
+    gckEVENT                    eventObj;
+
+    /* Context busy signal. */
+    gctSIGNAL                   signal;
+
+    /* Physical address of the context buffer. */
+    gctPHYS_ADDR                physical;
+
+    /* Logical address of the context buffer. */
+    gctUINT32_PTR               logical;
+
+    /* Hardware address of the context buffer. */
+    gctUINT32                   address;
+
+    /* Pointer to the LINK commands. */
+    gctPOINTER                  link2D;
+    gctPOINTER                  link3D;
+
+    /* Next context buffer. */
+    gcsCONTEXT_PTR              next;
+}
+gcsCONTEXT;
+
+typedef struct _gcsRECORD_ARRAY_MAP * gcsRECORD_ARRAY_MAP_PTR;
+struct  _gcsRECORD_ARRAY_MAP
+{
+    /* User pointer key. */
+    gctUINT64                   key;
+
+    /* Kernel memory buffer. */
+    gcsSTATE_DELTA_RECORD_PTR   kData;
+
+    /* Next map. */
+    gcsRECORD_ARRAY_MAP_PTR     next;
+
+};
+
+#define USE_SW_RESET 1
+
+/* gckCONTEXT structure that hold the current context. */
+struct _gckCONTEXT
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Pointer to gckHARDWARE object. */
+    gckHARDWARE                 hardware;
+
+    /* Command buffer alignment. */
+    gctUINT32                   alignment;
+    gctUINT32                   reservedHead;
+
+    /* Context buffer metrics. */
+    gctSIZE_T                   maxState;
+    gctUINT32                   numStates;
+    gctUINT32                   totalSize;
+    gctUINT32                   bufferSize;
+    gctUINT32                   linkIndex2D;
+    gctUINT32                   linkIndex3D;
+    gctUINT32                   linkIndexXD;
+    gctUINT32                   entryOffset3D;
+    gctUINT32                   entryOffsetXDFrom2D;
+    gctUINT32                   entryOffsetXDFrom3D;
+
+    /* State mapping. */
+    gcsSTATE_MAP_PTR            map;
+
+    /* List of context buffers. */
+    gcsCONTEXT_PTR              buffer;
+
+    /* Requested pipe select for context. */
+    gcePIPE_SELECT              entryPipe;
+    gcePIPE_SELECT              exitPipe;
+
+    /* Variables used for building state buffer. */
+    gctUINT32                   lastAddress;
+    gctSIZE_T                   lastSize;
+    gctUINT32                   lastIndex;
+    gctBOOL                     lastFixed;
+
+    gctUINT32                   pipeSelectBytes;
+
+    /* Hint array. */
+#if gcdSECURE_USER
+    gctBOOL_PTR                 hint;
+#endif
+
+    gcsPROFILER_COUNTERS_PART1    latestProfiler_part1;
+    gcsPROFILER_COUNTERS_PART1    histroyProfiler_part1;
+    gcsPROFILER_COUNTERS_PART1    preProfiler_part1;
+    gcsPROFILER_COUNTERS_PART2    latestProfiler_part2;
+    gcsPROFILER_COUNTERS_PART2    histroyProfiler_part2;
+    gcsPROFILER_COUNTERS_PART2    preProfiler_part2;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_context_h_ */
+

drivers/mxc/gpu-viv/hal/kernel/arch/gc_hal_kernel_hardware.h

@@ -0,0 +1,376 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_hardware_h_
+#define __gc_hal_kernel_hardware_h_
+
+#if gcdENABLE_VG
+#include "gc_hal_kernel_hardware_vg.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    gcvHARDWARE_FUNCTION_MMU,
+    gcvHARDWARE_FUNCTION_FLUSH,
+
+    /* BLT engine command sequence. */
+    gcvHARDWARE_FUNCTION_BLT_EVENT,
+    gcvHARDWARE_FUNCTION_DUMMY_DRAW,
+    gcvHARDWARE_FUNCTION_NUM,
+}
+gceHARDWARE_FUNCTION;
+
+
+typedef struct _gcsHARWARE_FUNCTION
+{
+    /* Entry of the function. */
+    gctUINT32                   address;
+
+    /* CPU address of the function. */
+    gctUINT8_PTR                logical;
+
+    /* Bytes of the function. */
+    gctUINT32                   bytes;
+
+    /* Hardware address of END in this function. */
+    gctUINT32                   endAddress;
+
+    /* Logical of END in this function. */
+    gctUINT8_PTR                endLogical;
+}
+gcsHARDWARE_FUNCTION;
+
+typedef struct _gcsSTATETIMER
+{
+    gctUINT64                   start;
+    gctUINT64                   recent;
+
+    /* Elapse of each power state. */
+    gctUINT64                   elapse[4];
+}
+gcsSTATETIMER;
+
+typedef struct _gcsHARDWARE_SIGNATURE
+{
+    /* Chip model. */
+    gceCHIPMODEL                chipModel;
+
+    /* Revision value.*/
+    gctUINT32                   chipRevision;
+
+    /* Supported feature fields. */
+    gctUINT32                   chipFeatures;
+
+    /* Supported minor feature fields. */
+    gctUINT32                   chipMinorFeatures;
+
+    /* Supported minor feature 1 fields. */
+    gctUINT32                   chipMinorFeatures1;
+
+    /* Supported minor feature 2 fields. */
+    gctUINT32                   chipMinorFeatures2;
+}
+gcsHARDWARE_SIGNATURE;
+
+typedef struct _gcsMMU_TABLE_ARRAY_ENTRY
+{
+    gctUINT32                   low;
+    gctUINT32                   high;
+}
+gcsMMU_TABLE_ARRAY_ENTRY;
+
+typedef struct _gcsHARDWARE_PAGETABLE_ARRAY
+{
+    /* Number of entries in page table array. */
+    gctUINT                     num;
+
+    /* Size in bytes of array. */
+    gctSIZE_T                   size;
+
+    /* Physical address of array. */
+    gctPHYS_ADDR_T              address;
+
+    /* Memory descriptor. */
+    gctPHYS_ADDR                physical;
+
+    /* Logical address of array. */
+    gctPOINTER                  logical;
+}
+gcsHARDWARE_PAGETABLE_ARRAY;
+
+/* gckHARDWARE object. */
+struct _gckHARDWARE
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gctKERNEL object. */
+    gckKERNEL                   kernel;
+
+    /* Pointer to gctOS object. */
+    gckOS                       os;
+
+    /* Core */
+    gceCORE                     core;
+
+    /* Chip characteristics. */
+    gcsHAL_QUERY_CHIP_IDENTITY  identity;
+    gcsHAL_QUERY_CHIP_OPTIONS   options;
+    gctUINT32                   powerBaseAddress;
+    gctBOOL                     extraEventStates;
+
+    /* Big endian */
+    gctBOOL                     bigEndian;
+
+    /* Base address. */
+    gctUINT32                   baseAddress;
+
+    /* Chip status */
+    gctPOINTER                  powerMutex;
+    gctUINT32                   powerProcess;
+    gctUINT32                   powerThread;
+    gceCHIPPOWERSTATE           chipPowerState;
+    gctUINT32                   lastWaitLink;
+    gctUINT32                   lastEnd;
+    gctBOOL                     clockState;
+    gctBOOL                     powerState;
+    gctPOINTER                  globalSemaphore;
+
+    gctUINT32                   mmuVersion;
+
+    /* Type */
+    gceHARDWARE_TYPE            type;
+
+#if gcdPOWEROFF_TIMEOUT
+    gctUINT32                   powerOffTime;
+    gctUINT32                   powerOffTimeout;
+    gctPOINTER                  powerOffTimer;
+#endif
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+    gctUINT32                   powerOnFscaleVal;
+#endif
+    gctPOINTER                  pageTableDirty[gcvENGINE_GPU_ENGINE_COUNT];
+
+#if gcdLINK_QUEUE_SIZE
+    struct _gckQUEUE            linkQueue;
+#endif
+    gctBOOL                     stallFEPrefetch;
+
+    gctUINT32                   minFscaleValue;
+    gctUINT                     waitCount;
+
+    gctUINT32                   mcClk;
+    gctUINT32                   shClk;
+
+    gctPOINTER                  pendingEvent;
+
+    /* Function used by gckHARDWARE. */
+    gctPHYS_ADDR                mmuFuncPhysical;
+    gctPOINTER                  mmuFuncLogical;
+    gctSIZE_T                   mmuFuncBytes;
+
+    gctPHYS_ADDR                auxFuncPhysical;
+    gctPHYS_ADDR                auxPhysHandle;
+    gctPOINTER                  auxFuncLogical;
+    gctUINT32                   auxFuncAddress;
+    gctSIZE_T                   auxFuncBytes;
+
+    gcsHARDWARE_FUNCTION        functions[gcvHARDWARE_FUNCTION_NUM];
+
+    gcsSTATETIMER               powerStateTimer;
+    gctUINT32                   executeCount;
+    gctUINT32                   lastExecuteAddress;
+
+    /* Head for hardware list in gckMMU. */
+    gcsLISTHEAD                 mmuHead;
+
+    gctPOINTER                  featureDatabase;
+    gctBOOL                     hasAsyncFe;
+    gctBOOL                     hasL2Cache;
+
+    gcsHARDWARE_SIGNATURE       signature;
+
+    gctUINT32                   maxOutstandingReads;
+
+    gcsHARDWARE_PAGETABLE_ARRAY pagetableArray;
+
+    gctUINT64                   contextID;
+};
+
+typedef struct _gcsFEDescriptor
+{
+    gctUINT32                   start;
+    gctUINT32                   end;
+}
+gcsFEDescriptor;
+
+typedef struct _gcsFE *         gckFE;
+typedef struct _gcsFE
+{
+    gckOS                       os;
+
+    /* Number of free descriptors. */
+    gctPOINTER                  freeDscriptors;
+}
+gcsFE;
+
+gceSTATUS
+gckFE_Initialize(
+    IN gckHARDWARE Hardware,
+    OUT gckFE FE
+    );
+
+gceSTATUS
+gckFE_ReserveSlot(
+    IN gckHARDWARE Hardware,
+    IN gckFE FE,
+    OUT gctBOOL * Available
+    );
+
+void
+gckFE_UpdateAvaiable(
+    IN gckHARDWARE Hardware,
+    OUT gckFE FE
+    );
+
+void
+gckFE_Execute(
+    IN gckHARDWARE Hardware,
+    IN gckFE FE,
+    IN gcsFEDescriptor * Desc
+    );
+
+gceSTATUS
+gckHARDWARE_GetBaseAddress(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32_PTR BaseAddress
+    );
+
+gceSTATUS
+gckHARDWARE_NeedBaseAddress(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 State,
+    OUT gctBOOL_PTR NeedBase
+    );
+
+gceSTATUS
+gckHARDWARE_GetFrameInfo(
+    IN gckHARDWARE Hardware,
+    OUT gcsHAL_FRAME_INFO * FrameInfo
+    );
+
+gceSTATUS
+gckHARDWARE_DumpGpuProfile(
+    IN gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckHARDWARE_HandleFault(
+    IN gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckHARDWARE_ExecuteFunctions(
+    IN gckHARDWARE Hardware,
+    IN gceHARDWARE_FUNCTION Function
+    );
+
+gceSTATUS
+gckHARDWARE_DummyDraw(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Address,
+    IN gceDUMMY_DRAW_TYPE DummyDrawType,
+    IN OUT gctUINT32 * Bytes
+    );
+
+gceSTATUS
+gckHARDWARE_EnterQueryClock(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT64 *McStart,
+    OUT gctUINT64 *ShStart
+    );
+
+gceSTATUS
+gckHARDWARE_ExitQueryClock(
+    IN gckHARDWARE Hardware,
+    IN gctUINT64 McStart,
+    IN gctUINT64 ShStart,
+    OUT gctUINT32 *McClk,
+    OUT gctUINT32 *ShClk
+    );
+
+gceSTATUS
+gckHARDWARE_QueryFrequency(
+    IN gckHARDWARE Hardware
+    );
+
+#define gcmkWRITE_MEMORY(logical, data) \
+    do { \
+    gcmkVERIFY_OK(gckOS_WriteMemory(os, logical, data)); \
+    logical++; \
+    }\
+    while (0) ; \
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_hardware_h_ */
+

drivers/mxc/gpu-viv/hal/kernel/arch/gc_hal_kernel_recorder.c

@@ -0,0 +1,728 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal.h"
+#include "gc_hal_kernel.h"
+#include "gc_hal_kernel_context.h"
+
+/*
+ *                          -----------------------
+ *                          HARDWARE STATE RECORDER
+ *                          -----------------------
+ *
+ * State mirror buffer is used to 'mirror' hardware states since hardware
+ * states can't be dumpped. It is a context buffer which stores 'global'
+ * context.
+ *
+ * For each commit, state recorder
+ * 1) Records context buffer (if there is) and command buffers in this commit.
+ * 2) Parse those buffers to estimate the state changed.
+ * 3) Stores result to a mirror buffer.
+ *
+ * == Commit 0 ====================================================================
+ *
+ *      Context Buffer 0
+ *
+ *      Command Buffer 0
+ *
+ *      Mirror Buffer  0  <- Context Buffer 0 + Command Buffer 0
+ *
+ * == Commit 1 ====================================================================
+ *
+ *      Command Buffer 1
+ *
+ *      Mirror Buffer  1  <- Command buffer 1 + Mirror Buffer 0
+ *
+ * == Commit 2 ====================================================================
+ *
+ *      Context Buffer 2 (optional)
+ *
+ *      Command Buffer 2
+ *
+ *      Mirror  Buffer 2  <- Command buffer 2 + Context Buffer 2 + Mirror Buffer 1
+ *
+ * == Commit N ====================================================================
+ *
+ * For Commit N, these buffers are needed to reproduce hardware's behavior in
+ * this commit.
+ *
+ *  Mirror  Buffer [N - 1] : State Mirror accumlated by past commits,
+ *                           which is used to restore hardware state.
+ *  Context Buffer [N]     :
+ *  Command Buffer [N]     : Command buffer executed by hardware in this commit.
+ *
+ *  If sequence of states programming matters, hardware's behavior can't be reproduced,
+ *  but the state values stored in mirror buffer are assuring.
+ */
+
+/* Queue size. */
+#define gcdNUM_RECORDS  6
+
+typedef struct _gcsPARSER_HANDLER * gckPARSER_HANDLER;
+
+typedef void
+(*HandlerFunction)(
+    IN gckPARSER_HANDLER Handler,
+    IN gctUINT32 Addr,
+    IN gctUINT32 Data
+    );
+
+typedef struct _gcsPARSER_HANDLER
+{
+    gctUINT32           type;
+    gctUINT32           cmd;
+    gctPOINTER          private;
+    HandlerFunction     function;
+}
+gcsPARSER_HANDLER;
+
+typedef struct _gcsPARSER * gckPARSER;
+typedef struct _gcsPARSER
+{
+    gctUINT8_PTR        currentCmdBufferAddr;
+
+    /* Current command. */
+    gctUINT32           lo;
+    gctUINT32           hi;
+
+    gctUINT8            cmdOpcode;
+    gctUINT16           cmdAddr;
+    gctUINT32           cmdSize;
+    gctUINT32           cmdRectCount;
+    gctUINT8            skip;
+    gctUINT32           skipCount;
+
+    gctBOOL             allow;
+    gctBOOL             stop;
+
+    /* Callback used by parser to handle a command. */
+    gckPARSER_HANDLER   commandHandler;
+}
+gcsPARSER;
+
+typedef struct _gcsMIRROR
+{
+    gctUINT32_PTR       logical[gcdNUM_RECORDS];
+    gctUINT32           bytes;
+    gcsSTATE_MAP_PTR    map;
+    gctSIZE_T           maxState;
+}
+gcsMIRROR;
+
+typedef struct _gcsDELTA
+{
+    gctUINT64           commitStamp;
+    gctUINT32_PTR       command;
+    gctUINT32           commandBytes;
+    gctUINT32_PTR       context;
+    gctUINT32           contextBytes;
+}
+gcsDELTA;
+
+typedef struct _gcsRECORDER
+{
+    gckOS               os;
+    gcsMIRROR           mirror;
+    gcsDELTA            deltas[gcdNUM_RECORDS];
+
+    /* Index of current record. */
+    gctUINT             index;
+
+    /* Number of records. */
+    gctUINT             num;
+
+    /* Plugin used by gckPARSER. */
+    gcsPARSER_HANDLER   recorderHandler;
+    gckPARSER           parser;
+}
+gcsRECORDER;
+
+
+/******************************************************************************\
+***************************** Command Buffer Parser ****************************
+\******************************************************************************/
+
+/*
+** Command buffer parser checks command buffer in FE's view to make sure there
+** is no format error.
+**
+** Parser provide a callback mechnisam, so plug-in can be added to implement
+** other functions.
+*/
+
+static void
+_HandleLoadState(
+    IN OUT gckPARSER Parser
+    )
+{
+    gctUINT i;
+    gctUINT32_PTR data = (gctUINT32_PTR)Parser->currentCmdBufferAddr;
+    gctUINT32 cmdAddr = Parser->cmdAddr;
+
+    if (Parser->commandHandler == gcvNULL
+     || Parser->commandHandler->cmd != 0x01
+    )
+    {
+        /* No handler for this command. */
+        return;
+    }
+
+    for (i = 0; i < Parser->cmdSize; i++)
+    {
+        Parser->commandHandler->function(Parser->commandHandler, cmdAddr, *data);
+
+        /* Advance to next state. */
+        cmdAddr++;
+        data++;
+    }
+}
+
+static void
+_GetCommand(
+    IN OUT gckPARSER Parser
+    )
+{
+    gctUINT32 * buffer = (gctUINT32 *)Parser->currentCmdBufferAddr;
+
+    gctUINT16 cmdRectCount;
+    gctUINT16 cmdDataCount;
+
+    Parser->hi = buffer[0];
+    Parser->lo = buffer[1];
+
+    Parser->cmdOpcode = (((((gctUINT32) (Parser->hi)) >> (0 ? 31:27)) & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0U : (~(~0U << ((1 ? 31:27) - (0 ? 31:27) + 1)))))) );
+    Parser->cmdRectCount = 1;
+
+    switch (Parser->cmdOpcode)
+    {
+    case 0x01:
+        /* Extract count. */
+        Parser->cmdSize = (((((gctUINT32) (Parser->hi)) >> (0 ? 25:16)) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0U : (~(~0U << ((1 ? 25:16) - (0 ? 25:16) + 1)))))) );
+        if (Parser->cmdSize == 0)
+        {
+            /* 0 means 1024. */
+            Parser->cmdSize = 1024;
+        }
+        Parser->skip = (Parser->cmdSize & 0x1) ? 0 : 1;
+
+        /* Extract address. */
+        Parser->cmdAddr = (((((gctUINT32) (Parser->hi)) >> (0 ? 15:0)) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0U : (~(~0U << ((1 ? 15:0) - (0 ? 15:0) + 1)))))) );
+
+        Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr + 4;
+        Parser->skipCount = Parser->cmdSize + Parser->skip;
+        break;
+
+     case 0x05:
+        Parser->cmdSize   = 4;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+    case 0x06:
+        Parser->cmdSize   = 5;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+    case 0x0C:
+        Parser->cmdSize   = 3;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+    case 0x09:
+        Parser->cmdSize   = 2;
+        Parser->cmdAddr   = 0x0F16;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+     case 0x04:
+        Parser->cmdSize = 1;
+        Parser->cmdAddr = 0x0F06;
+
+        cmdRectCount = (((((gctUINT32) (Parser->hi)) >> (0 ? 15:8)) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0U : (~(~0U << ((1 ? 15:8) - (0 ? 15:8) + 1)))))) );
+        cmdDataCount = (((((gctUINT32) (Parser->hi)) >> (0 ? 26:16)) & ((gctUINT32) ((((1 ? 26:16) - (0 ? 26:16) + 1) == 32) ? ~0U : (~(~0U << ((1 ? 26:16) - (0 ? 26:16) + 1)))))) );
+
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2)
+                          + cmdRectCount * 2
+                          + gcmALIGN(cmdDataCount, 2);
+
+        Parser->cmdRectCount = cmdRectCount;
+        break;
+
+    case 0x03:
+        Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr + 8;
+        Parser->skipCount = 0;
+        break;
+
+    case 0x02:
+        Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr + 8;
+        Parser->skipCount = 0;
+        break;
+
+    case 0x07:
+        Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr + 8;
+        Parser->skipCount = 0;
+        break;
+
+    case 0x08:
+        /* Commands after LINK isn't executed, skip them. */
+        Parser->stop = gcvTRUE;
+        break;
+
+    default:
+        /* Unknown command is a risk. */
+        Parser->allow = gcvFALSE;
+        break;
+    }
+}
+
+static void
+_ParseCommand(
+    IN OUT gckPARSER Parser
+    )
+{
+    switch(Parser->cmdOpcode)
+    {
+    case 0x01:
+        _HandleLoadState(Parser);
+        break;
+    case 0x05:
+    case 0x06:
+    case 0x0C:
+        break;
+    case 0x04:
+        break;
+    default:
+        break;
+    }
+
+    /* Advance to next command. */
+    Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr
+                                 + (Parser->skipCount << 2);
+}
+
+gceSTATUS
+gckPARSER_Parse(
+    IN gckPARSER Parser,
+    IN gctUINT8_PTR Buffer,
+    IN gctUINT32 Bytes
+    )
+{
+    gckPARSER parser = Parser;
+    gctUINT8_PTR end = (gctUINT8_PTR)Buffer + Bytes;
+
+    /* Initialize parser. */
+    parser->currentCmdBufferAddr = (gctUINT8_PTR)Buffer;
+    parser->skip = 0;
+    parser->allow = gcvTRUE;
+    parser->stop  = gcvFALSE;
+
+    /* Go through command buffer until reaching the end
+    ** or meeting an error. */
+    do
+    {
+        _GetCommand(parser);
+
+        _ParseCommand(parser);
+    }
+    while ((parser->currentCmdBufferAddr < end)
+        && (parser->allow == gcvTRUE)
+        && (parser->stop == gcvFALSE)
+        );
+
+    if (parser->allow == gcvFALSE)
+    {
+        /* Error detected. */
+        return gcvSTATUS_NOT_SUPPORTED;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckPARSER_RegisterCommandHandler
+**
+**  Register a command handler which will be called when parser get a command.
+**
+*/
+gceSTATUS
+gckPARSER_RegisterCommandHandler(
+    IN gckPARSER Parser,
+    IN gckPARSER_HANDLER Handler
+    )
+{
+    Parser->commandHandler = Handler;
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckPARSER_Construct(
+    IN gckOS Os,
+    IN gckPARSER_HANDLER Handler,
+    OUT gckPARSER * Parser
+    )
+{
+    gceSTATUS status;
+    gckPARSER pointer;
+
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsPARSER), (gctPOINTER *)&pointer));
+
+    /* Put it here temp, should have a more general plug-in mechnisam. */
+    pointer->commandHandler = Handler;
+
+    *Parser = pointer;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+void
+gckPARSER_Destroy(
+    IN gckOS Os,
+    IN gckPARSER Parser
+    )
+{
+    gcmkOS_SAFE_FREE(Os, Parser);
+}
+
+/******************************************************************************\
+**************************** Hardware States Recorder **************************
+\******************************************************************************/
+
+static void
+_RecodeState(
+    IN gckPARSER_HANDLER Handler,
+    IN gctUINT32 Addr,
+    IN gctUINT32 Data
+    )
+{
+    gcmkVERIFY_OK(gckRECORDER_UpdateMirror(Handler->private, Addr, Data));
+}
+
+static gctUINT
+_Previous(
+    IN gctUINT Index
+    )
+{
+    if (Index == 0)
+    {
+        return gcdNUM_RECORDS - 1;
+    }
+
+    return Index - 1;
+}
+
+static gctUINT
+_Next(
+    IN gctUINT Index
+    )
+{
+    return (Index + 1) % gcdNUM_RECORDS;
+}
+
+gceSTATUS
+gckRECORDER_Construct(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    OUT gckRECORDER * Recorder
+    )
+{
+    gceSTATUS status;
+    gckCONTEXT context = gcvNULL;
+    gckRECORDER recorder = gcvNULL;
+    gctSIZE_T mapSize;
+    gctUINT i;
+    gctBOOL virtualCommandBuffer = Hardware->kernel->virtualCommandBuffer;
+
+    /* MMU is not ready now. */
+    Hardware->kernel->virtualCommandBuffer = gcvFALSE;
+
+    gcmkONERROR(gckCONTEXT_Construct(Os, Hardware, 0, &context));
+
+    /* Restore. */
+    Hardware->kernel->virtualCommandBuffer = virtualCommandBuffer;
+
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsRECORDER), (gctPOINTER *)&recorder));
+
+    gckOS_ZeroMemory(recorder, gcmSIZEOF(gcsRECORDER));
+
+    /* Copy state map. */
+    recorder->mirror.maxState = context->maxState;
+
+    mapSize = context->maxState * gcmSIZEOF(gcsSTATE_MAP);
+
+    gcmkONERROR(gckOS_Allocate(Os, mapSize, (gctPOINTER *)&recorder->mirror.map));
+
+    gckOS_MemCopy(recorder->mirror.map, context->map, mapSize);
+
+    /* Copy context buffer. */
+    recorder->mirror.bytes = context->totalSize;
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        gcmkONERROR(gckOS_Allocate(Os, context->totalSize, (gctPOINTER *)&recorder->mirror.logical[i]));
+        gckOS_MemCopy(recorder->mirror.logical[i], context->buffer->logical, context->totalSize);
+    }
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        gcmkONERROR(gckOS_Allocate(Os, gcdCMD_BUFFER_SIZE, (gctPOINTER *)&recorder->deltas[i].command));
+        gcmkONERROR(gckOS_Allocate(Os, context->totalSize, (gctPOINTER *)&recorder->deltas[i].context));
+    }
+
+    recorder->index = 0;
+    recorder->num   = 0;
+
+    /* Initialize Parser plugin. */
+    recorder->recorderHandler.cmd = 0x01;
+    recorder->recorderHandler.private = recorder;
+    recorder->recorderHandler.function = _RecodeState;
+
+    gcmkONERROR(gckPARSER_Construct(Os, &recorder->recorderHandler, &recorder->parser));
+
+    recorder->os = Os;
+
+    *Recorder = recorder;
+
+    gckCONTEXT_Destroy(context);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (context)
+    {
+        gckCONTEXT_Destroy(context);
+    }
+
+    if (recorder)
+    {
+        gckRECORDER_Destory(Os, recorder);
+    }
+
+    return status;
+}
+
+gceSTATUS
+gckRECORDER_Destory(
+    IN gckOS Os,
+    IN gckRECORDER Recorder
+    )
+{
+    gctUINT i;
+
+    if (Recorder->mirror.map)
+    {
+        gcmkOS_SAFE_FREE(Os, Recorder->mirror.map);
+    }
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        if (Recorder->mirror.logical[i])
+        {
+            gcmkOS_SAFE_FREE(Os, Recorder->mirror.logical[i]);
+        }
+    }
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        if (Recorder->deltas[i].command)
+        {
+            gcmkOS_SAFE_FREE(Os, Recorder->deltas[i].command);
+        }
+
+        if (Recorder->deltas[i].context)
+        {
+            gcmkOS_SAFE_FREE(Os, Recorder->deltas[i].context);
+        }
+    }
+
+    if (Recorder->parser)
+    {
+        gckPARSER_Destroy(Os, Recorder->parser);
+    }
+
+    gcmkOS_SAFE_FREE(Os, Recorder);
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckRECORDER_UpdateMirror(
+    IN gckRECORDER Recorder,
+    IN gctUINT32 State,
+    IN gctUINT32 Data
+    )
+{
+    gctUINT32 index;
+    gcsSTATE_MAP_PTR map = Recorder->mirror.map;
+    gctUINT32_PTR buffer = Recorder->mirror.logical[Recorder->index];
+
+    if (State >= Recorder->mirror.maxState)
+    {
+        /* Ignore them just like HW does. */
+        return gcvSTATUS_OK;
+    }
+
+    index = map[State].index;
+
+    if (index)
+    {
+        buffer[index] = Data;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+void
+gckRECORDER_AdvanceIndex(
+    IN gckRECORDER Recorder,
+    IN gctUINT64 CommitStamp
+    )
+{
+    /* Get next record. */
+    gctUINT next = (Recorder->index + 1) % gcdNUM_RECORDS;
+
+    /* Record stamp of this commit. */
+    Recorder->deltas[Recorder->index].commitStamp = CommitStamp;
+
+    /* Mirror of next record is mirror of this record and delta in next record. */
+    gckOS_MemCopy(Recorder->mirror.logical[next],
+        Recorder->mirror.logical[Recorder->index], Recorder->mirror.bytes);
+
+    /* Advance to next record. */
+    Recorder->index = next;
+
+    Recorder->num = gcmMIN(Recorder->num + 1, gcdNUM_RECORDS - 1);
+
+
+    /* Reset delta. */
+    Recorder->deltas[Recorder->index].commandBytes = 0;
+    Recorder->deltas[Recorder->index].contextBytes = 0;
+}
+
+void
+gckRECORDER_Record(
+    IN gckRECORDER Recorder,
+    IN gctUINT8_PTR CommandBuffer,
+    IN gctUINT32 CommandBytes,
+    IN gctUINT8_PTR ContextBuffer,
+    IN gctUINT32 ContextBytes
+    )
+{
+    gcsDELTA * delta = &Recorder->deltas[Recorder->index];
+
+    if (CommandBytes != 0xFFFFFFFF)
+    {
+        gckPARSER_Parse(Recorder->parser, CommandBuffer, CommandBytes);
+        gckOS_MemCopy(delta->command, CommandBuffer, CommandBytes);
+        delta->commandBytes = CommandBytes;
+    }
+
+    if (ContextBytes != 0xFFFFFFFF)
+    {
+        gckPARSER_Parse(Recorder->parser, ContextBuffer, ContextBytes);
+        gckOS_MemCopy(delta->context, ContextBuffer, ContextBytes);
+        delta->contextBytes = ContextBytes;
+    }
+}
+
+void
+gckRECORDER_Dump(
+    IN gckRECORDER Recorder
+    )
+{
+    gctUINT last = Recorder->index;
+    gctUINT previous;
+    gctUINT i;
+    gcsMIRROR *mirror = &Recorder->mirror;
+    gcsDELTA *delta;
+    gckOS os = Recorder->os;
+
+    for (i = 0; i < Recorder->num; i++)
+    {
+        last = _Previous(last);
+    }
+
+    for (i = 0; i < Recorder->num; i++)
+    {
+        delta = &Recorder->deltas[last];
+
+        /* Dump record */
+        gcmkPRINT("#[commit %llu]", delta->commitStamp);
+
+        if (delta->commitStamp)
+        {
+            previous = _Previous(last);
+
+            gcmkPRINT("#[mirror]");
+            gckOS_DumpBuffer(os, mirror->logical[previous], mirror->bytes, gcvDUMP_BUFFER_CONTEXT, gcvTRUE);
+            gcmkPRINT("@[kernel.execute]");
+        }
+
+        if (delta->contextBytes)
+        {
+            gckOS_DumpBuffer(os, delta->context, delta->contextBytes, gcvDUMP_BUFFER_CONTEXT, gcvTRUE);
+            gcmkPRINT("@[kernel.execute]");
+        }
+
+        gckOS_DumpBuffer(os, delta->command, delta->commandBytes, gcvDUMP_BUFFER_USER, gcvTRUE);
+        gcmkPRINT("@[kernel.execute]");
+
+        last = _Next(last);
+    }
+}
+
+

drivers/mxc/gpu-viv/hal/kernel/archvg/gc_hal_kernel_hardware_command_vg.h

@@ -0,0 +1,353 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_hardware_command_vg_h_
+#define __gc_hal_kernel_hardware_command_vg_h_
+
+/******************************************************************************\
+******************* Task and Interrupt Management Structures. ******************
+\******************************************************************************/
+
+/* Task storage header. */
+typedef struct _gcsTASK_STORAGE * gcsTASK_STORAGE_PTR;
+typedef struct _gcsTASK_STORAGE
+{
+    /* Next allocated storage buffer. */
+    gcsTASK_STORAGE_PTR         next;
+}
+gcsTASK_STORAGE;
+
+/* Task container header. */
+typedef struct _gcsTASK_CONTAINER * gcsTASK_CONTAINER_PTR;
+typedef struct _gcsTASK_CONTAINER
+{
+    /* The number of tasks left to be processed in the container. */
+    gctINT                      referenceCount;
+
+    /* Size of the buffer. */
+    gctUINT                     size;
+
+    /* Link to the previous and the next allocated containers. */
+    gcsTASK_CONTAINER_PTR       allocPrev;
+    gcsTASK_CONTAINER_PTR       allocNext;
+
+    /* Link to the previous and the next containers in the free list. */
+    gcsTASK_CONTAINER_PTR       freePrev;
+    gcsTASK_CONTAINER_PTR       freeNext;
+}
+gcsTASK_CONTAINER;
+
+/* Kernel space task master table entry. */
+typedef struct _gcsBLOCK_TASK_ENTRY * gcsBLOCK_TASK_ENTRY_PTR;
+typedef struct _gcsBLOCK_TASK_ENTRY
+{
+    /* Pointer to the current task container for the block. */
+    gcsTASK_CONTAINER_PTR       container;
+
+    /* Pointer to the current task data within the container. */
+    gcsTASK_HEADER_PTR          task;
+
+    /* Pointer to the last link task within the container. */
+    gcsTASK_LINK_PTR            link;
+
+    /* Number of interrupts allocated for this block. */
+    gctUINT                     interruptCount;
+
+    /* The index of the current interrupt. */
+    gctUINT                     interruptIndex;
+
+    /* Interrupt semaphore. */
+    gctSEMAPHORE                interruptSemaphore;
+
+    /* Interrupt value array. */
+    gctINT32                    interruptArray[32];
+}
+gcsBLOCK_TASK_ENTRY;
+
+
+/******************************************************************************\
+********************* Command Queue Management Structures. *********************
+\******************************************************************************/
+
+/* Command queue kernel element pointer. */
+typedef struct _gcsKERNEL_CMDQUEUE * gcsKERNEL_CMDQUEUE_PTR;
+
+/* Command queue object handler function type. */
+typedef gceSTATUS (* gctOBJECT_HANDLER) (
+    gckVGKERNEL Kernel,
+    gcsKERNEL_CMDQUEUE_PTR Entry
+    );
+
+/* Command queue kernel element. */
+typedef struct _gcsKERNEL_CMDQUEUE
+{
+    /* The number of buffers in the queue. */
+    gcsCMDBUFFER_PTR            commandBuffer;
+
+    /* Pointer to the object handler function. */
+    gctOBJECT_HANDLER           handler;
+}
+gcsKERNEL_CMDQUEUE;
+
+/* Command queue header. */
+typedef struct _gcsKERNEL_QUEUE_HEADER * gcsKERNEL_QUEUE_HEADER_PTR;
+typedef struct _gcsKERNEL_QUEUE_HEADER
+{
+    /* The size of the buffer in bytes. */
+    gctUINT                     size;
+
+    /* The number of pending entries to be processed. */
+    volatile gctUINT            pending;
+
+    /* The current command queue entry. */
+    gcsKERNEL_CMDQUEUE_PTR      currentEntry;
+
+    /* Next buffer. */
+    gcsKERNEL_QUEUE_HEADER_PTR  next;
+}
+gcsKERNEL_QUEUE_HEADER;
+
+
+/******************************************************************************\
+******************************* gckVGCOMMAND Object *******************************
+\******************************************************************************/
+
+/* gckVGCOMMAND object. */
+struct _gckVGCOMMAND
+{
+    /***************************************************************************
+    ** Object data and pointers.
+    */
+
+    gcsOBJECT                   object;
+    gckVGKERNEL                 kernel;
+    gckOS                       os;
+    gckVGHARDWARE                   hardware;
+
+    /* Features. */
+    gctBOOL                     fe20;
+    gctBOOL                     vg20;
+    gctBOOL                     vg21;
+
+
+    /***************************************************************************
+    ** Enable command queue dumping.
+    */
+
+    gctBOOL                     enableDumping;
+
+
+    /***************************************************************************
+    ** Bus Error interrupt.
+    */
+
+    gctINT32                    busErrorInt;
+
+
+    /***************************************************************************
+    ** Command buffer information.
+    */
+
+    gcsCOMMAND_BUFFER_INFO      info;
+
+
+    /***************************************************************************
+    ** Synchronization objects.
+    */
+
+    gctPOINTER                  queueMutex;
+    gctPOINTER                  taskMutex;
+    gctPOINTER                  commitMutex;
+
+
+    /***************************************************************************
+    ** Task management.
+    */
+
+    /* The head of the storage buffer linked list. */
+    gcsTASK_STORAGE_PTR         taskStorage;
+
+    /* Allocation size. */
+    gctUINT                     taskStorageGranularity;
+    gctUINT                     taskStorageUsable;
+
+    /* The free container list. */
+    gcsTASK_CONTAINER_PTR       taskFreeHead;
+    gcsTASK_CONTAINER_PTR       taskFreeTail;
+
+    /* Task table */
+    gcsBLOCK_TASK_ENTRY         taskTable[gcvBLOCK_COUNT];
+
+
+    /***************************************************************************
+    ** Command queue.
+    */
+
+    /* Pointer to the allocated queue memory. */
+    gcsKERNEL_QUEUE_HEADER_PTR  queue;
+
+    /* Pointer to the current available queue from which new queue entries
+       will be allocated. */
+    gcsKERNEL_QUEUE_HEADER_PTR  queueHead;
+
+    /* If different from queueHead, points to the command queue which is
+       currently being executed by the hardware. */
+    gcsKERNEL_QUEUE_HEADER_PTR  queueTail;
+
+    /* Points to the queue to merge the tail with when the tail is processed. */
+    gcsKERNEL_QUEUE_HEADER_PTR  mergeQueue;
+
+    /* Queue overflow counter. */
+    gctUINT                     queueOverflow;
+
+
+    /***************************************************************************
+    ** Context.
+    */
+
+    /* Context counter used for unique ID. */
+    gctUINT64                   contextCounter;
+
+    /* Current context ID. */
+    gctUINT64                   currentContext;
+
+    /* Command queue power semaphore. */
+    gctPOINTER                  powerSemaphore;
+    gctINT32                    powerStallInt;
+    gcsCMDBUFFER_PTR            powerStallBuffer;
+    gctSIGNAL                   powerStallSignal;
+
+};
+
+/******************************************************************************\
+************************ gckVGCOMMAND Object Internal API. ***********************
+\******************************************************************************/
+
+/* Initialize architecture dependent command buffer information. */
+gceSTATUS
+gckVGCOMMAND_InitializeInfo(
+    IN gckVGCOMMAND Command
+    );
+
+/* Form a STATE command at the specified location in the command buffer. */
+gceSTATUS
+gckVGCOMMAND_StateCommand(
+    IN gckVGCOMMAND Command,
+    IN gctUINT32 Pipe,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Address,
+    IN gctUINT32 Count,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Form a RESTART command at the specified location in the command buffer. */
+gceSTATUS
+gckVGCOMMAND_RestartCommand(
+    IN gckVGCOMMAND Command,
+    IN gctPOINTER Logical,
+    IN gctUINT32 FetchAddress,
+    IN gctUINT FetchCount,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Form a FETCH command at the specified location in the command buffer. */
+gceSTATUS
+gckVGCOMMAND_FetchCommand(
+    IN gckVGCOMMAND Command,
+    IN gctPOINTER Logical,
+    IN gctUINT32 FetchAddress,
+    IN gctUINT FetchCount,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Form a CALL command at the specified location in the command buffer. */
+gceSTATUS
+gckVGCOMMAND_CallCommand(
+    IN gckVGCOMMAND Command,
+    IN gctPOINTER Logical,
+    IN gctUINT32 FetchAddress,
+    IN gctUINT FetchCount,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Form a RETURN command at the specified location in the command buffer. */
+gceSTATUS
+gckVGCOMMAND_ReturnCommand(
+    IN gckVGCOMMAND Command,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Form an EVENT command at the specified location in the command buffer. */
+gceSTATUS
+gckVGCOMMAND_EventCommand(
+    IN gckVGCOMMAND Command,
+    IN gctPOINTER Logical,
+    IN gceBLOCK Block,
+    IN gctINT32 InterruptId,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Form an END command at the specified location in the command buffer. */
+gceSTATUS
+gckVGCOMMAND_EndCommand(
+    IN gckVGCOMMAND Command,
+    IN gctPOINTER Logical,
+    IN gctINT32 InterruptId,
+    IN OUT gctUINT32 * Bytes
+    );
+
+#endif  /* __gc_hal_kernel_hardware_command_h_ */
+

drivers/mxc/gpu-viv/hal/kernel/archvg/gc_hal_kernel_hardware_vg.h

@@ -0,0 +1,110 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_hardware_vg_h_
+#define __gc_hal_kernel_hardware_vg_h_
+
+/* gckHARDWARE object. */
+struct _gckVGHARDWARE
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckKERNEL object. */
+    gckVGKERNEL                 kernel;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Chip characteristics. */
+    gceCHIPMODEL                chipModel;
+    gctUINT32                   chipRevision;
+    gctUINT32                   productID;
+    gctUINT32                   ecoID;
+    gctUINT32                   customerID;
+    gctUINT32                   chipFeatures;
+    gctUINT32                   chipMinorFeatures;
+    gctUINT32                   chipMinorFeatures2;
+
+    /* Features. */
+    gctBOOL                     fe20;
+    gctBOOL                     vg20;
+    gctBOOL                     vg21;
+    gctBOOL                     fc;
+
+    /* Event mask. */
+    gctUINT32                   eventMask;
+
+    gctBOOL                     clockState;
+    gctBOOL                     powerState;
+    gctPOINTER                  powerMutex;
+    gctUINT32                   powerProcess;
+    gctUINT32                   powerThread;
+    gceCHIPPOWERSTATE           chipPowerState;
+    gceCHIPPOWERSTATE           chipPowerStateGlobal;
+    gctPOINTER                  pageTableDirty;
+#if gcdPOWEROFF_TIMEOUT
+    gctUINT32                   powerOffTime;
+    gctUINT32                   powerOffTimeout;
+    gctPOINTER                  powerOffTimer;
+#endif
+
+    gcsHAL_QUERY_CHIP_OPTIONS   options;
+
+    gctPOINTER                  featureDatabase;
+};
+
+#endif /* __gc_hal_kernel_hardware_h_ */
+

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_async_command.c

@@ -0,0 +1,477 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+#include "gc_hal_kernel_context.h"
+
+#define _GC_OBJ_ZONE            gcvZONE_ASYNC_COMMAND
+
+static gceSTATUS
+_HandlePatchList(
+    IN gckASYNC_COMMAND Command,
+    IN gcoCMDBUF CommandBuffer,
+    IN gctBOOL NeedCopy
+    )
+{
+    gceSTATUS status;
+    gcsPATCH_LIST * uList;
+    gcsPATCH_LIST * previous;
+    gcsPATCH_LIST * kList;
+
+    gcmkHEADER_ARG(
+        "Command=0x%x CommandBuffer=0x%x NeedCopy=%d",
+        Command, CommandBuffer, NeedCopy
+        );
+
+    uList = gcmUINT64_TO_PTR(CommandBuffer->patchHead);
+
+    while (uList)
+    {
+        gctUINT i;
+
+        kList = gcvNULL;
+        previous = uList;
+
+        gcmkONERROR(gckKERNEL_OpenUserData(
+            Command->kernel,
+            NeedCopy,
+            Command->kList,
+            uList,
+            gcmSIZEOF(gcsPATCH_LIST),
+            (gctPOINTER *)&kList
+            ));
+
+        for (i = 0; i < kList->count; i++)
+        {
+            gcsPATCH * patch = &kList->patch[i];
+
+            /* Touch video memory node. */
+            gcmkVERIFY_OK(gckVIDMEM_SetCommitStamp(Command->kernel, gcvENGINE_BLT, patch->handle, Command->commitStamp));
+        }
+
+        uList = kList->next;
+
+        gcmkVERIFY_OK(gckKERNEL_CloseUserData(
+            Command->kernel,
+            NeedCopy,
+            gcvFALSE,
+            previous,
+            gcmSIZEOF(gcsPATCH_LIST),
+            (gctPOINTER *)&kList
+            ));
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (kList)
+    {
+        gcmkVERIFY_OK(gckKERNEL_CloseUserData(
+            Command->kernel,
+            NeedCopy,
+            gcvFALSE,
+            previous,
+            gcmSIZEOF(gcsPATCH_LIST),
+            (gctPOINTER *)&kList
+            ));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+
+gceSTATUS
+gckASYNC_COMMAND_Construct(
+    IN gckKERNEL Kernel,
+    OUT gckASYNC_COMMAND * Command
+    )
+{
+    gceSTATUS status;
+    gckASYNC_COMMAND command;
+    gckOS os = Kernel->os;
+
+    gcmkHEADER();
+
+    /* Allocate gckASYNC_COMMAND object. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(gcsASYNC_COMMAND), (gctPOINTER *)&command));
+
+    gckOS_ZeroMemory(command, gcmSIZEOF(gcsASYNC_COMMAND));
+
+    /* Mutex to protect gckFE. */
+    gcmkONERROR(gckOS_CreateMutex(os, &command->mutex));
+
+    /* Initialize gckFE. */
+    gckFE_Initialize(Kernel->hardware, &command->fe);
+
+    /* Initialize gckASYNC_COMMAND object. */
+    command->os = os;
+    command->kernel = Kernel;
+    command->hardware = Kernel->hardware;
+
+    gcmkVERIFY_OK(gckHARDWARE_QueryCommandBuffer(
+        Kernel->hardware,
+        gcvENGINE_BLT,
+        gcvNULL,
+        gcvNULL,
+        &command->reservedTail
+        ));
+
+    gcmkONERROR(gckFENCE_Create(
+        os, Kernel, &command->fence
+        ));
+
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(gcsPATCH_LIST), &command->kList));
+
+    /* Commit stamp start from 1. */
+    command->commitStamp = 1;
+
+    *Command = command;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Rollback. */
+    gckASYNC_COMMAND_Destroy(command);
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckASYNC_COMMAND_Destroy(
+    IN gckASYNC_COMMAND Command
+    )
+{
+    gcmkHEADER();
+
+    if (Command)
+    {
+        if (Command->mutex)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Command->os, Command->mutex));
+        }
+
+        if (Command->fence)
+        {
+            gcmkVERIFY_OK(gckFENCE_Destory(Command->os, Command->fence));
+        }
+
+        if (Command->kList)
+        {
+            gcmkOS_SAFE_FREE(Command->os, Command->kList);
+        }
+
+        if (Command->fe.freeDscriptors)
+        {
+            gcmkOS_SAFE_FREE(Command->os, Command->fe.freeDscriptors);
+        }
+
+        gcmkOS_SAFE_FREE(Command->os, Command);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckASYNC_COMMAND_Commit(
+    IN gckASYNC_COMMAND Command,
+    IN gcoCMDBUF CommandBuffer,
+    IN gcsQUEUE_PTR EventQueue
+    )
+{
+    gceSTATUS       status;
+    gctBOOL         available = gcvFALSE;
+    gctBOOL         acquired = gcvFALSE;
+    gcoCMDBUF       commandBufferObject = gcvNULL;
+    struct _gcoCMDBUF _commandBufferObject;
+    gctUINT8_PTR    commandBufferLogical;
+    gctUINT8_PTR    commandBufferTail;
+    gctUINT         commandBufferSize;
+    gctUINT32       commandBufferAddress;
+    gcsFEDescriptor descriptor;
+    gctUINT32       skipFlushBytes;
+    gctUINT32       fenceBytes;
+    gctBOOL         needCopy;
+    gctUINT32       oldValue;
+    gctUINT32       flushBytes;
+
+    gcmkHEADER();
+
+    gckOS_QueryNeedCopy(Command->os, 0, &needCopy);
+
+    gcmkVERIFY_OK(_HandlePatchList(Command, CommandBuffer, needCopy));
+
+    /* Open user passed gcoCMDBUF object. */
+    gcmkONERROR(gckKERNEL_OpenUserData(
+        Command->kernel,
+        needCopy,
+        &_commandBufferObject,
+        CommandBuffer,
+        gcmSIZEOF(struct _gcoCMDBUF),
+        (gctPOINTER *)&commandBufferObject
+        ));
+
+    gcmkVERIFY_OBJECT(commandBufferObject, gcvOBJ_COMMANDBUFFER);
+
+    gckHARDWARE_FlushAsyncMMU(Command->hardware, gcvNULL, &flushBytes);
+
+    gcmkONERROR(gckOS_AtomicExchange(Command->os,
+                                     Command->hardware->pageTableDirty[gcvENGINE_BLT],
+                                     0,
+                                     &oldValue));
+
+    if (oldValue)
+    {
+        commandBufferLogical
+            = (gctUINT8_PTR) gcmUINT64_TO_PTR(commandBufferObject->logical)
+            +                commandBufferObject->startOffset;
+
+        gckHARDWARE_FlushAsyncMMU(Command->hardware, commandBufferLogical, &flushBytes);
+
+        skipFlushBytes = 0;
+    }
+    else
+    {
+        skipFlushBytes = flushBytes;
+    }
+
+    /* Compute the command buffer entry and the size. */
+    commandBufferLogical
+        = (gctUINT8_PTR) gcmUINT64_TO_PTR(commandBufferObject->logical)
+        +                commandBufferObject->startOffset
+        +                skipFlushBytes;
+
+    commandBufferSize
+        = commandBufferObject->offset
+        + Command->reservedTail
+        - commandBufferObject->startOffset
+        - skipFlushBytes;
+
+    commandBufferTail
+        = commandBufferLogical
+        + commandBufferSize
+        - Command->reservedTail;
+
+    /* Get the hardware address. */
+    if (Command->kernel && Command->kernel->virtualCommandBuffer)
+    {
+        gckKERNEL kernel = Command->kernel;
+        gckVIRTUAL_COMMAND_BUFFER_PTR virtualCommandBuffer
+            = gcmNAME_TO_PTR(commandBufferObject->physical);
+
+        if (virtualCommandBuffer == gcvNULL)
+        {
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        gcmkONERROR(gckKERNEL_GetGPUAddress(
+            Command->kernel,
+            commandBufferLogical,
+            gcvTRUE,
+            virtualCommandBuffer,
+            &commandBufferAddress
+            ));
+    }
+    else
+    {
+        gcmkONERROR(gckHARDWARE_ConvertLogical(
+            Command->hardware,
+            commandBufferLogical,
+            gcvTRUE,
+            &commandBufferAddress
+            ));
+    }
+
+    gcmkONERROR(gckHARDWARE_Fence(
+        Command->hardware,
+        gcvENGINE_BLT,
+        commandBufferTail,
+        Command->fence->address,
+        Command->commitStamp,
+        &fenceBytes
+        ));
+
+    descriptor.start = commandBufferAddress;
+    descriptor.end   = commandBufferAddress + commandBufferSize;
+
+    gcmkDUMPCOMMAND(
+        Command->os,
+        commandBufferLogical,
+        commandBufferSize,
+        gcvDUMP_BUFFER_USER,
+        gcvFALSE
+        );
+
+    gckOS_AcquireMutex(Command->os, Command->mutex, gcvINFINITE);
+    acquired = gcvTRUE;
+
+    /* Acquire a slot. */
+    for(;;)
+    {
+        gcmkONERROR(gckFE_ReserveSlot(Command->hardware, &Command->fe, &available));
+
+        if (available)
+        {
+            break;
+        }
+        else
+        {
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, _GC_OBJ_ZONE, "No available slot, have to wait");
+
+            gckOS_Delay(Command->os, 1);
+        }
+    }
+
+    /* Send descriptor. */
+    gckFE_Execute(Command->hardware, &Command->fe, &descriptor);
+
+    Command->commitStamp++;
+
+    gckOS_ReleaseMutex(Command->os, Command->mutex);
+    acquired = gcvFALSE;
+
+    gcmkVERIFY_OK(gckKERNEL_CloseUserData(
+        Command->kernel,
+        needCopy,
+        gcvFALSE,
+        CommandBuffer,
+        gcmSIZEOF(struct _gcoCMDBUF),
+        (gctPOINTER *)&commandBufferObject
+        ));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gckOS_ReleaseMutex(Command->os, Command->mutex);
+    }
+
+    if (commandBufferObject)
+    {
+        gcmkVERIFY_OK(gckKERNEL_CloseUserData(
+            Command->kernel,
+            needCopy,
+            gcvFALSE,
+            CommandBuffer,
+            gcmSIZEOF(struct _gcoCMDBUF),
+            (gctPOINTER *)&commandBufferObject
+            ));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckASYNC_COMMAND_EnterCommit(
+    IN gckASYNC_COMMAND Command
+    )
+{
+    return gckOS_AcquireMutex(Command->os, Command->mutex, gcvINFINITE);
+}
+
+
+gceSTATUS
+gckASYNC_COMMAND_ExitCommit(
+    IN gckASYNC_COMMAND Command
+    )
+{
+    return gckOS_ReleaseMutex(Command->os, Command->mutex);
+}
+
+gceSTATUS
+gckASYNC_COMMAND_Execute(
+    IN gckASYNC_COMMAND Command,
+    IN gctUINT32 Start,
+    IN gctUINT32 End
+    )
+{
+    gceSTATUS status;
+    gcsFEDescriptor descriptor;
+    gctBOOL available;
+
+    descriptor.start = Start;
+    descriptor.end   = End;
+
+    /* Acquire a slot. */
+    for(;;)
+    {
+        gcmkONERROR(gckFE_ReserveSlot(Command->hardware, &Command->fe, &available));
+
+        if (available)
+        {
+            break;
+        }
+        else
+        {
+            gckOS_Delay(Command->os, 1);
+        }
+    }
+
+    /* Send descriptor. */
+    gckFE_Execute(Command->hardware, &Command->fe, &descriptor);
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_heap.c

@@ -0,0 +1,892 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+/**
+**  @file
+**  gckHEAP object for kernel HAL layer.  The heap implemented here is an arena-
+**  based memory allocation.  An arena-based memory heap allocates data quickly
+**  from specified arenas and reduces memory fragmentation.
+**
+*/
+#include "gc_hal_kernel_precomp.h"
+
+#define _GC_OBJ_ZONE            gcvZONE_HEAP
+
+/*******************************************************************************
+***** Structures ***************************************************************
+*******************************************************************************/
+#define gcdIN_USE               ((gcskNODE_PTR)gcvMAXUINTPTR_T)
+
+typedef struct _gcskNODE *      gcskNODE_PTR;
+typedef struct _gcskNODE
+{
+    /* Number of byets in node. */
+    gctSIZE_T                   bytes;
+
+    /* Pointer to next free node, or gcvNULL to mark the node as freed, or
+    ** gcdIN_USE to mark the node as used. */
+    gcskNODE_PTR                next;
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Time stamp of allocation. */
+    gctUINT64                   timeStamp;
+#endif
+}
+gcskNODE;
+
+typedef struct _gcskHEAP    *   gcskHEAP_PTR;
+typedef struct _gcskHEAP
+{
+    /* Linked list. */
+    gcskHEAP_PTR                next;
+    gcskHEAP_PTR                prev;
+
+    /* Heap size. */
+    gctSIZE_T                   size;
+
+    /* Free list. */
+    gcskNODE_PTR                freeList;
+}
+gcskHEAP;
+
+struct _gckHEAP
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to a gckOS object. */
+    gckOS                       os;
+
+    /* Locking mutex. */
+    gctPOINTER                  mutex;
+
+    /* Allocation parameters. */
+    gctSIZE_T                   allocationSize;
+
+    /* Heap list. */
+    gcskHEAP_PTR                heap;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gctUINT64                   timeStamp;
+#endif
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Profile information. */
+    gctUINT32                   allocCount;
+    gctUINT64                   allocBytes;
+    gctUINT64                   allocBytesMax;
+    gctUINT64                   allocBytesTotal;
+    gctUINT32                   heapCount;
+    gctUINT32                   heapCountMax;
+    gctUINT64                   heapMemory;
+    gctUINT64                   heapMemoryMax;
+#endif
+};
+
+/*******************************************************************************
+***** Static Support Functions *************************************************
+*******************************************************************************/
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+static gctSIZE_T
+_DumpHeap(
+    IN gcskHEAP_PTR Heap
+    )
+{
+    gctPOINTER p;
+    gctSIZE_T leaked = 0;
+
+    /* Start at first node. */
+    for (p = Heap + 1;;)
+    {
+        /* Convert the pointer. */
+        gcskNODE_PTR node = (gcskNODE_PTR) p;
+
+        /* Check if this is a used node. */
+        if (node->next == gcdIN_USE)
+        {
+            /* Print the leaking node. */
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_HEAP,
+                           "Detected leaking: node=0x%x bytes=%lu timeStamp=%llu "
+                           "(%08X %c%c%c%c)",
+                           node, node->bytes, node->timeStamp,
+                           ((gctUINT32_PTR) (node + 1))[0],
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[0]),
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[1]),
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[2]),
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[3]));
+
+            /* Add leaking byte count. */
+            leaked += node->bytes;
+        }
+
+        /* Test for end of heap. */
+        if (node->bytes == 0)
+        {
+            break;
+        }
+
+        else
+        {
+            /* Move to next node. */
+            p = (gctUINT8_PTR) node + node->bytes;
+        }
+    }
+
+    /* Return the number of leaked bytes. */
+    return leaked;
+}
+#endif
+
+static gceSTATUS
+_CompactKernelHeap(
+    IN gckHEAP Heap
+    )
+{
+    gcskHEAP_PTR heap, next;
+    gctPOINTER p;
+    gcskHEAP_PTR freeList = gcvNULL;
+
+    gcmkHEADER_ARG("Heap=0x%x", Heap);
+
+    /* Walk all the heaps. */
+    for (heap = Heap->heap; heap != gcvNULL; heap = next)
+    {
+        gcskNODE_PTR lastFree = gcvNULL;
+
+        /* Zero out the free list. */
+        heap->freeList = gcvNULL;
+
+        /* Start at the first node. */
+        for (p = (gctUINT8_PTR) (heap + 1);;)
+        {
+            /* Convert the pointer. */
+            gcskNODE_PTR node = (gcskNODE_PTR) p;
+
+            gcmkASSERT(p <= (gctPOINTER) ((gctUINT8_PTR) (heap + 1) + heap->size));
+
+            /* Test if this node not used. */
+            if (node->next != gcdIN_USE)
+            {
+                /* Test if this is the end of the heap. */
+                if (node->bytes == 0)
+                {
+                    break;
+                }
+
+                /* Test of this is the first free node. */
+                else if (lastFree == gcvNULL)
+                {
+                    /* Initialzie the free list. */
+                    heap->freeList = node;
+                    lastFree       = node;
+                }
+
+                else
+                {
+                    /* Test if this free node is contiguous with the previous
+                    ** free node. */
+                    if ((gctUINT8_PTR) lastFree + lastFree->bytes == p)
+                    {
+                        /* Just increase the size of the previous free node. */
+                        lastFree->bytes += node->bytes;
+                    }
+                    else
+                    {
+                        /* Add to linked list. */
+                        lastFree->next = node;
+                        lastFree       = node;
+                    }
+                }
+            }
+
+            /* Move to next node. */
+            p = (gctUINT8_PTR) node + node->bytes;
+        }
+
+        /* Mark the end of the chain. */
+        if (lastFree != gcvNULL)
+        {
+            lastFree->next = gcvNULL;
+        }
+
+        /* Get next heap. */
+        next = heap->next;
+
+        /* Check if the entire heap is free. */
+        if ((heap->freeList != gcvNULL)
+        &&  (heap->freeList->bytes == heap->size - gcmSIZEOF(gcskNODE))
+        )
+        {
+            /* Remove the heap from the linked list. */
+            if (heap->prev == gcvNULL)
+            {
+                Heap->heap = next;
+            }
+            else
+            {
+                heap->prev->next = next;
+            }
+
+            if (heap->next != gcvNULL)
+            {
+                heap->next->prev = heap->prev;
+            }
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+            /* Update profiling. */
+            Heap->heapCount  -= 1;
+            Heap->heapMemory -= heap->size + gcmSIZEOF(gcskHEAP);
+#endif
+
+            /* Add this heap to the list of heaps that need to be freed. */
+            heap->next = freeList;
+            freeList   = heap;
+        }
+    }
+
+    if (freeList != gcvNULL)
+    {
+        /* Release the mutex, remove any chance for a dead lock. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+        /* Free all heaps in the free list. */
+        for (heap = freeList; heap != gcvNULL; heap = next)
+        {
+            /* Get pointer to the next heap. */
+            next = heap->next;
+
+            /* Free the heap. */
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HEAP,
+                           "Freeing heap 0x%x (%lu bytes)",
+                           heap, heap->size + gcmSIZEOF(gcskHEAP));
+            gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, heap));
+        }
+
+        /* Acquire the mutex again. */
+        gcmkVERIFY_OK(
+            gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+***** gckHEAP API Code *********************************************************
+*******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckHEAP_Construct
+**
+**  Construct a new gckHEAP object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctSIZE_T AllocationSize
+**          Minimum size per arena.
+**
+**  OUTPUT:
+**
+**      gckHEAP * Heap
+**          Pointer to a variable that will hold the pointer to the gckHEAP
+**          object.
+*/
+gceSTATUS
+gckHEAP_Construct(
+    IN gckOS Os,
+    IN gctSIZE_T AllocationSize,
+    OUT gckHEAP * Heap
+    )
+{
+    gceSTATUS status;
+    gckHEAP heap = gcvNULL;
+    gctPOINTER pointer = gcvNULL;
+
+    gcmkHEADER_ARG("Os=0x%x AllocationSize=%lu", Os, AllocationSize);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Heap != gcvNULL);
+
+    /* Allocate the gckHEAP object. */
+    gcmkONERROR(gckOS_AllocateMemory(Os,
+                                     gcmSIZEOF(struct _gckHEAP),
+                                     &pointer));
+
+    heap = pointer;
+
+    /* Initialize the gckHEAP object. */
+    heap->object.type    = gcvOBJ_HEAP;
+    heap->os             = Os;
+    heap->allocationSize = AllocationSize;
+    heap->heap           = gcvNULL;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    heap->timeStamp      = 0;
+#endif
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Zero the counters. */
+    heap->allocCount      = 0;
+    heap->allocBytes      = 0;
+    heap->allocBytesMax   = 0;
+    heap->allocBytesTotal = 0;
+    heap->heapCount       = 0;
+    heap->heapCountMax    = 0;
+    heap->heapMemory      = 0;
+    heap->heapMemoryMax   = 0;
+#endif
+
+    /* Create the mutex. */
+    gcmkONERROR(gckOS_CreateMutex(Os, &heap->mutex));
+
+    /* Return the pointer to the gckHEAP object. */
+    *Heap = heap;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Heap=0x%x", *Heap);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (heap != gcvNULL)
+    {
+        /* Free the heap structure. */
+        gcmkVERIFY_OK(gckOS_FreeMemory(Os, heap));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHEAP_Destroy
+**
+**  Destroy a gckHEAP object.
+**
+**  INPUT:
+**
+**      gckHEAP Heap
+**          Pointer to a gckHEAP object to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHEAP_Destroy(
+    IN gckHEAP Heap
+    )
+{
+    gcskHEAP_PTR heap;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gctSIZE_T leaked = 0;
+#endif
+
+    gcmkHEADER_ARG("Heap=0x%x", Heap);
+
+    for (heap = Heap->heap; heap != gcvNULL; heap = Heap->heap)
+    {
+        /* Unlink heap from linked list. */
+        Heap->heap = heap->next;
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+        /* Check for leaked memory. */
+        leaked += _DumpHeap(heap);
+#endif
+
+        /* Free the heap. */
+        gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, heap));
+    }
+
+    /* Free the mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Heap->os, Heap->mutex));
+
+    /* Free the heap structure. */
+    gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, Heap));
+
+    /* Success. */
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gcmkFOOTER_ARG("leaked=%lu", leaked);
+#else
+    gcmkFOOTER_NO();
+#endif
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHEAP_Allocate
+**
+**  Allocate data from the heap.
+**
+**  INPUT:
+**
+**      gckHEAP Heap
+**          Pointer to a gckHEAP object.
+**
+**      IN gctSIZE_T Bytes
+**          Number of byte to allocate.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Memory
+**          Pointer to a variable that will hold the address of the allocated
+**          memory.
+*/
+gceSTATUS
+gckHEAP_Allocate(
+    IN gckHEAP Heap,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    )
+{
+    gctBOOL acquired = gcvFALSE;
+    gcskHEAP_PTR heap;
+    gceSTATUS status;
+    gctSIZE_T bytes;
+    gcskNODE_PTR node, used, prevFree = gcvNULL;
+    gctPOINTER memory = gcvNULL;
+
+    gcmkHEADER_ARG("Heap=0x%x Bytes=%lu", Heap, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    /* Determine number of bytes required for a node. */
+    bytes = gcmALIGN(Bytes + gcmSIZEOF(gcskNODE), 8);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+
+    acquired = gcvTRUE;
+
+    /* Check if this allocation is bigger than the default allocation size. */
+    if (bytes > Heap->allocationSize - gcmSIZEOF(gcskHEAP) - gcmSIZEOF(gcskNODE))
+    {
+        /* Adjust allocation size. */
+        Heap->allocationSize = bytes * 2;
+    }
+
+    else if (Heap->heap != gcvNULL)
+    {
+        gctINT i;
+
+        /* 2 retries, since we might need to compact. */
+        for (i = 0; i < 2; ++i)
+        {
+            /* Walk all the heaps. */
+            for (heap = Heap->heap; heap != gcvNULL; heap = heap->next)
+            {
+                /* Check if this heap has enough bytes to hold the request. */
+                if (bytes <= heap->size - gcmSIZEOF(gcskNODE))
+                {
+                    prevFree = gcvNULL;
+
+                    /* Walk the chain of free nodes. */
+                    for (node = heap->freeList;
+                         node != gcvNULL;
+                         node = node->next
+                    )
+                    {
+                        gcmkASSERT(node->next != gcdIN_USE);
+
+                        /* Check if this free node has enough bytes. */
+                        if (node->bytes >= bytes)
+                        {
+                            /* Use the node. */
+                            goto UseNode;
+                        }
+
+                        /* Save current free node for linked list management. */
+                        prevFree = node;
+                    }
+                }
+            }
+
+            if (i == 0)
+            {
+                /* Compact the heap. */
+                gcmkVERIFY_OK(_CompactKernelHeap(Heap));
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "===== KERNEL HEAP =====");
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Number of allocations           : %12u",
+                               Heap->allocCount);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Number of bytes allocated       : %12llu",
+                               Heap->allocBytes);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Maximum allocation size         : %12llu",
+                               Heap->allocBytesMax);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Total number of bytes allocated : %12llu",
+                               Heap->allocBytesTotal);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Number of heaps                 : %12u",
+                               Heap->heapCount);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Heap memory in bytes            : %12llu",
+                               Heap->heapMemory);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Maximum number of heaps         : %12u",
+                               Heap->heapCountMax);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Maximum heap memory in bytes    : %12llu",
+                               Heap->heapMemoryMax);
+#endif
+            }
+        }
+    }
+
+    /* Release the mutex. */
+    gcmkONERROR(
+        gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+    acquired = gcvFALSE;
+
+    /* Allocate a new heap. */
+    gcmkONERROR(
+        gckOS_AllocateMemory(Heap->os,
+                             Heap->allocationSize,
+                             &memory));
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HEAP,
+                   "Allocated heap 0x%x (%lu bytes)",
+                   memory, Heap->allocationSize);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+
+    acquired = gcvTRUE;
+
+    /* Use the allocated memory as the heap. */
+    heap = (gcskHEAP_PTR) memory;
+
+    /* Insert this heap to the head of the chain. */
+    heap->next = Heap->heap;
+    heap->prev = gcvNULL;
+    heap->size = Heap->allocationSize - gcmSIZEOF(gcskHEAP);
+
+    if (heap->next != gcvNULL)
+    {
+        heap->next->prev = heap;
+    }
+    Heap->heap = heap;
+
+    /* Mark the end of the heap. */
+    node = (gcskNODE_PTR) ( (gctUINT8_PTR) heap
+                          + Heap->allocationSize
+                          - gcmSIZEOF(gcskNODE)
+                          );
+    node->bytes = 0;
+    node->next  = gcvNULL;
+
+    /* Create a free list. */
+    node           = (gcskNODE_PTR) (heap + 1);
+    heap->freeList = node;
+
+    /* Initialize the free list. */
+    node->bytes = heap->size - gcmSIZEOF(gcskNODE);
+    node->next  = gcvNULL;
+
+    /* No previous free. */
+    prevFree = gcvNULL;
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Update profiling. */
+    Heap->heapCount  += 1;
+    Heap->heapMemory += Heap->allocationSize;
+
+    if (Heap->heapCount > Heap->heapCountMax)
+    {
+        Heap->heapCountMax = Heap->heapCount;
+    }
+    if (Heap->heapMemory > Heap->heapMemoryMax)
+    {
+        Heap->heapMemoryMax = Heap->heapMemory;
+    }
+#endif
+
+UseNode:
+    /* Verify some stuff. */
+    gcmkASSERT(heap != gcvNULL);
+    gcmkASSERT(node != gcvNULL);
+    gcmkASSERT(node->bytes >= bytes);
+
+    if (heap->prev != gcvNULL)
+    {
+        /* Unlink the heap from the linked list. */
+        heap->prev->next = heap->next;
+        if (heap->next != gcvNULL)
+        {
+            heap->next->prev = heap->prev;
+        }
+
+        /* Move the heap to the front of the list. */
+        heap->next       = Heap->heap;
+        heap->prev       = gcvNULL;
+        Heap->heap       = heap;
+        heap->next->prev = heap;
+    }
+
+    /* Check if there is enough free space left after usage for another free
+    ** node. */
+    if (node->bytes - bytes >= gcmSIZEOF(gcskNODE))
+    {
+        /* Allocated used space from the back of the free list. */
+        used = (gcskNODE_PTR) ((gctUINT8_PTR) node + node->bytes - bytes);
+
+        /* Adjust the number of free bytes. */
+        node->bytes -= bytes;
+        gcmkASSERT(node->bytes >= gcmSIZEOF(gcskNODE));
+    }
+    else
+    {
+        /* Remove this free list from the chain. */
+        if (prevFree == gcvNULL)
+        {
+            heap->freeList = node->next;
+        }
+        else
+        {
+            prevFree->next = node->next;
+        }
+
+        /* Consume the entire free node. */
+        used  = (gcskNODE_PTR) node;
+        bytes = node->bytes;
+    }
+
+    /* Mark node as used. */
+    used->bytes     = bytes;
+    used->next      = gcdIN_USE;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    used->timeStamp = ++Heap->timeStamp;
+#endif
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Update profile counters. */
+    Heap->allocCount      += 1;
+    Heap->allocBytes      += bytes;
+    Heap->allocBytesMax    = gcmMAX(Heap->allocBytes, Heap->allocBytesMax);
+    Heap->allocBytesTotal += bytes;
+#endif
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+    /* Return pointer to memory. */
+    *Memory = used + 1;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Memory=0x%x", *Memory);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+    }
+
+    if (memory != gcvNULL)
+    {
+        /* Free the heap memory. */
+        gckOS_FreeMemory(Heap->os, memory);
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHEAP_Free
+**
+**  Free allocated memory from the heap.
+**
+**  INPUT:
+**
+**      gckHEAP Heap
+**          Pointer to a gckHEAP object.
+**
+**      IN gctPOINTER Memory
+**          Pointer to memory to free.
+**
+**  OUTPUT:
+**
+**      NOTHING.
+*/
+gceSTATUS
+gckHEAP_Free(
+    IN gckHEAP Heap,
+    IN gctPOINTER Memory
+    )
+{
+    gcskNODE_PTR node;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Heap=0x%x Memory=0x%x", Heap, Memory);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+
+    /* Pointer to structure. */
+    node = (gcskNODE_PTR) Memory - 1;
+
+    /* Mark the node as freed. */
+    node->next = gcvNULL;
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Update profile counters. */
+    Heap->allocBytes -= node->bytes;
+#endif
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if VIVANTE_PROFILER
+gceSTATUS
+gckHEAP_ProfileStart(
+    IN gckHEAP Heap
+    )
+{
+    gcmkHEADER_ARG("Heap=0x%x", Heap);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+
+    /* Zero the counters. */
+    Heap->allocCount      = 0;
+    Heap->allocBytes      = 0;
+    Heap->allocBytesMax   = 0;
+    Heap->allocBytesTotal = 0;
+    Heap->heapCount       = 0;
+    Heap->heapCountMax    = 0;
+    Heap->heapMemory      = 0;
+    Heap->heapMemoryMax   = 0;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckHEAP_ProfileEnd(
+    IN gckHEAP Heap,
+    IN gctCONST_STRING Title
+    )
+{
+    gcmkHEADER_ARG("Heap=0x%x Title=0x%x", Heap, Title);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+    gcmkVERIFY_ARGUMENT(Title != gcvNULL);
+
+    gcmkPRINT("");
+    gcmkPRINT("=====[ HEAP - %s ]=====", Title);
+    gcmkPRINT("Number of allocations           : %12u",   Heap->allocCount);
+    gcmkPRINT("Number of bytes allocated       : %12llu", Heap->allocBytes);
+    gcmkPRINT("Maximum allocation size         : %12llu", Heap->allocBytesMax);
+    gcmkPRINT("Total number of bytes allocated : %12llu", Heap->allocBytesTotal);
+    gcmkPRINT("Number of heaps                 : %12u",   Heap->heapCount);
+    gcmkPRINT("Heap memory in bytes            : %12llu", Heap->heapMemory);
+    gcmkPRINT("Maximum number of heaps         : %12u",   Heap->heapCountMax);
+    gcmkPRINT("Maximum heap memory in bytes    : %12llu", Heap->heapMemoryMax);
+    gcmkPRINT("==============================================");
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+#endif /* VIVANTE_PROFILER */
+
+/*******************************************************************************
+***** Test Code ****************************************************************
+*******************************************************************************/
+

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_interrupt_vg.c

@@ -0,0 +1,911 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#if gcdENABLE_VG
+
+/******************************************************************************\
+*********************** Support Functions and Definitions **********************
+\******************************************************************************/
+
+/* Interruot statistics will be accumulated if not zero. */
+#define gcmENABLE_INTERRUPT_STATISTICS 0
+
+#define _GC_OBJ_ZONE    gcvZONE_INTERRUPT
+
+/* Object structure. */
+struct _gckVGINTERRUPT
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* gckVGKERNEL pointer. */
+    gckVGKERNEL                 kernel;
+
+    /* gckOS pointer. */
+    gckOS                       os;
+
+    /* Interrupt handlers. */
+    gctINTERRUPT_HANDLER        handlers[32];
+
+    /* Main interrupt handler thread. */
+    gctTHREAD                   handler;
+    gctBOOL                     terminate;
+
+    /* Interrupt FIFO. */
+    gctSEMAPHORE                fifoValid;
+    gctUINT32                   fifo[256];
+    gctUINT                     fifoItems;
+    gctUINT8                    head;
+    gctUINT8                    tail;
+
+    /* Interrupt statistics. */
+#if gcmENABLE_INTERRUPT_STATISTICS
+    gctUINT                     maxFifoItems;
+    gctUINT                     fifoOverflow;
+    gctUINT                     maxSimultaneous;
+    gctUINT                     multipleCount;
+#endif
+};
+
+
+/*******************************************************************************
+**
+**  _ProcessInterrupt
+**
+**  The interrupt processor.
+**
+**  INPUT:
+**
+**      ThreadParameter
+**          Pointer to the gckVGINTERRUPT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+#if gcmENABLE_INTERRUPT_STATISTICS
+static void
+_ProcessInterrupt(
+    gckVGINTERRUPT Interrupt,
+    gctUINT_PTR TriggeredCount
+    )
+#else
+static void
+_ProcessInterrupt(
+    gckVGINTERRUPT Interrupt
+    )
+#endif
+{
+    gceSTATUS status;
+    gctUINT32 triggered;
+    gctUINT i;
+
+    /* Advance to the next entry. */
+    Interrupt->tail      += 1;
+    Interrupt->fifoItems -= 1;
+
+    /* Get the interrupt value. */
+    triggered = Interrupt->fifo[Interrupt->tail];
+    gcmkASSERT(triggered != 0);
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+        "%s: triggered=0x%08X\n",
+        __FUNCTION__,
+        triggered
+        );
+
+    /* Walk through all possible interrupts. */
+    for (i = 0; i < gcmSIZEOF(Interrupt->handlers); i += 1)
+    {
+        /* Test if interrupt happened. */
+        if ((triggered & 1) == 1)
+        {
+#if gcmENABLE_INTERRUPT_STATISTICS
+            if (TriggeredCount != gcvNULL)
+            {
+                (* TriggeredCount) += 1;
+            }
+#endif
+
+            /* Make sure we have valid handler. */
+            if (Interrupt->handlers[i] == gcvNULL)
+            {
+                gcmkTRACE(
+                    gcvLEVEL_ERROR,
+                    "%s: Interrupt %d isn't registered.\n",
+                    __FUNCTION__, i
+                    );
+            }
+            else
+            {
+                gcmkTRACE_ZONE(
+                    gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+                    "%s: interrupt=%d\n",
+                    __FUNCTION__,
+                    i
+                    );
+
+                /* Call the handler. */
+                status = Interrupt->handlers[i] (Interrupt->kernel);
+
+                if (gcmkIS_ERROR(status))
+                {
+                    /* Failed to signal the semaphore. */
+                    gcmkTRACE(
+                        gcvLEVEL_ERROR,
+                        "%s: Error %d incrementing the semaphore #%d.\n",
+                        __FUNCTION__, status, i
+                        );
+                }
+            }
+        }
+
+        /* Next interrupt. */
+        triggered >>= 1;
+
+        /* No more interrupts to handle? */
+        if (triggered == 0)
+        {
+            break;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+**  _MainInterruptHandler
+**
+**  The main interrupt thread serves the interrupt FIFO and calls registered
+**  handlers for the interrupts that occured. The handlers are called in the
+**  sequence interrupts occured with the exception when multiple interrupts
+**  occured at the same time. In that case the handler calls are "sorted" by
+**  the interrupt number therefore giving the interrupts with lower numbers
+**  higher priority.
+**
+**  INPUT:
+**
+**      ThreadParameter
+**          Pointer to the gckVGINTERRUPT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+static gctTHREADFUNCRESULT gctTHREADFUNCTYPE
+_MainInterruptHandler(
+    gctTHREADFUNCPARAMETER ThreadParameter
+    )
+{
+    gceSTATUS status;
+    gckVGINTERRUPT interrupt;
+
+#if gcmENABLE_INTERRUPT_STATISTICS
+    gctUINT count;
+#endif
+
+    /* Cast the object. */
+    interrupt = (gckVGINTERRUPT) ThreadParameter;
+
+    /* Enter the loop. */
+    while (gcvTRUE)
+    {
+        /* Wait for an interrupt. */
+        status = gckOS_DecrementSemaphore(interrupt->os, interrupt->fifoValid);
+
+        /* Error? */
+        if (gcmkIS_ERROR(status))
+        {
+            break;
+        }
+
+        /* System termination request? */
+        if (status == gcvSTATUS_TERMINATE)
+        {
+            break;
+        }
+
+        /* Driver is shutting down? */
+        if (interrupt->terminate)
+        {
+            break;
+        }
+
+#if gcmENABLE_INTERRUPT_STATISTICS
+        /* Reset triggered count. */
+        count = 0;
+
+        /* Process the interrupt. */
+        _ProcessInterrupt(interrupt, &count);
+
+        /* Update conters. */
+        if (count > interrupt->maxSimultaneous)
+        {
+            interrupt->maxSimultaneous = count;
+        }
+
+        if (count > 1)
+        {
+            interrupt->multipleCount += 1;
+        }
+#else
+        /* Process the interrupt. */
+        _ProcessInterrupt(interrupt);
+#endif
+    }
+
+    return 0;
+}
+
+
+/*******************************************************************************
+**
+**  _StartInterruptHandler / _StopInterruptHandler
+**
+**  Main interrupt handler routine control.
+**
+**  INPUT:
+**
+**      ThreadParameter
+**          Pointer to the gckVGINTERRUPT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+static gceSTATUS
+_StartInterruptHandler(
+    gckVGINTERRUPT Interrupt
+    )
+{
+    gceSTATUS status, last;
+
+    do
+    {
+        /* Objects must not be already created. */
+        gcmkASSERT(Interrupt->fifoValid == gcvNULL);
+        gcmkASSERT(Interrupt->handler   == gcvNULL);
+
+        /* Reset the termination request. */
+        Interrupt->terminate = gcvFALSE;
+
+#if !gcdENABLE_INFINITE_SPEED_HW
+        /* Construct the fifo semaphore. */
+        gcmkERR_BREAK(gckOS_CreateSemaphoreVG(
+            Interrupt->os, &Interrupt->fifoValid
+            ));
+
+        /* Start the interrupt handler thread. */
+        gcmkERR_BREAK(gckOS_StartThread(
+            Interrupt->os,
+            _MainInterruptHandler,
+            Interrupt,
+            &Interrupt->handler
+            ));
+#endif
+
+        /* Success. */
+        return gcvSTATUS_OK;
+    }
+    while (gcvFALSE);
+
+    /* Roll back. */
+    if (Interrupt->fifoValid != gcvNULL)
+    {
+        gcmkCHECK_STATUS(gckOS_DestroySemaphore(
+            Interrupt->os, Interrupt->fifoValid
+            ));
+
+        Interrupt->fifoValid = gcvNULL;
+    }
+
+    /* Return the status. */
+    return status;
+}
+
+static gceSTATUS
+_StopInterruptHandler(
+    gckVGINTERRUPT Interrupt
+    )
+{
+    gceSTATUS status;
+
+    do
+    {
+        /* Does the thread exist? */
+        if (Interrupt->handler == gcvNULL)
+        {
+            /* The semaphore must be NULL as well. */
+            gcmkASSERT(Interrupt->fifoValid == gcvNULL);
+
+            /* Success. */
+            status = gcvSTATUS_OK;
+            break;
+        }
+
+        /* The semaphore must exist as well. */
+        gcmkASSERT(Interrupt->fifoValid != gcvNULL);
+
+        /* Set the termination request. */
+        Interrupt->terminate = gcvTRUE;
+
+        /* Unlock the thread. */
+        gcmkERR_BREAK(gckOS_IncrementSemaphore(
+            Interrupt->os, Interrupt->fifoValid
+            ));
+
+        /* Wait until the thread quits. */
+        gcmkERR_BREAK(gckOS_StopThread(
+            Interrupt->os,
+            Interrupt->handler
+            ));
+
+        /* Destroy the semaphore. */
+        gcmkERR_BREAK(gckOS_DestroySemaphore(
+            Interrupt->os, Interrupt->fifoValid
+            ));
+
+        /* Reset handles. */
+        Interrupt->handler   = gcvNULL;
+        Interrupt->fifoValid = gcvNULL;
+    }
+    while (gcvFALSE);
+
+    /* Return the status. */
+    return status;
+}
+
+
+/******************************************************************************\
+***************************** Interrupt Object API *****************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckVGINTERRUPT_Construct
+**
+**  Construct an interrupt object.
+**
+**  INPUT:
+**
+**      Kernel
+**          Pointer to the gckVGKERNEL object.
+**
+**  OUTPUT:
+**
+**      Interrupt
+**          Pointer to the new gckVGINTERRUPT object.
+*/
+
+gceSTATUS
+gckVGINTERRUPT_Construct(
+    IN gckVGKERNEL Kernel,
+    OUT gckVGINTERRUPT * Interrupt
+    )
+{
+    gceSTATUS status;
+    gckVGINTERRUPT interrupt = gcvNULL;
+
+    gcmkHEADER_ARG("Kernel=0x%x Interrupt=0x%x", Kernel, Interrupt);
+
+    /* Verify argeuments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Interrupt != gcvNULL);
+
+    do
+    {
+        /* Allocate the gckVGINTERRUPT structure. */
+        gcmkERR_BREAK(gckOS_Allocate(
+            Kernel->os,
+            gcmSIZEOF(struct _gckVGINTERRUPT),
+            (gctPOINTER *) &interrupt
+            ));
+
+        /* Reset the object data. */
+        gcmkVERIFY_OK(gckOS_ZeroMemory(
+            interrupt, gcmSIZEOF(struct _gckVGINTERRUPT)
+            ));
+
+        /* Initialize the object. */
+        interrupt->object.type = gcvOBJ_INTERRUPT;
+
+        /* Initialize the object pointers. */
+        interrupt->kernel = Kernel;
+        interrupt->os     = Kernel->os;
+
+        /* Initialize the current FIFO position. */
+        interrupt->head = (gctUINT8)~0;
+        interrupt->tail = (gctUINT8)~0;
+
+        /* Start the thread. */
+        gcmkERR_BREAK(_StartInterruptHandler(interrupt));
+
+        /* Return interrupt object. */
+        *Interrupt = interrupt;
+
+        gcmkFOOTER_ARG("*Interrup=0x%x", *Interrupt);
+        /* Success. */
+        return gcvSTATUS_OK;
+    }
+    while (gcvFALSE);
+
+    /* Roll back. */
+    if (interrupt != gcvNULL)
+    {
+        /* Free the gckVGINTERRUPT structure. */
+        gcmkVERIFY_OK(gckOS_Free(interrupt->os, interrupt));
+    }
+
+    gcmkFOOTER();
+
+    /* Return the status. */
+    return status;
+}
+
+
+/*******************************************************************************
+**
+**  gckVGINTERRUPT_Destroy
+**
+**  Destroy an interrupt object.
+**
+**  INPUT:
+**
+**      Interrupt
+**          Pointer to the gckVGINTERRUPT object to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+gceSTATUS
+gckVGINTERRUPT_Destroy(
+    IN gckVGINTERRUPT Interrupt
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Interrupt=0x%x", Interrupt);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Interrupt, gcvOBJ_INTERRUPT);
+
+    do
+    {
+        /* Stop the interrupt thread. */
+        gcmkERR_BREAK(_StopInterruptHandler(Interrupt));
+
+        /* Mark the object as unknown. */
+        Interrupt->object.type = gcvOBJ_UNKNOWN;
+
+        /* Free the gckVGINTERRUPT structure. */
+        gcmkERR_BREAK(gckOS_Free(Interrupt->os, Interrupt));
+    }
+    while (gcvFALSE);
+
+    gcmkFOOTER();
+
+    /* Return the status. */
+    return status;
+}
+
+
+/*******************************************************************************
+**
+**  gckVGINTERRUPT_DumpState
+**
+**  Print the current state of the interrupt manager.
+**
+**  INPUT:
+**
+**      Interrupt
+**          Pointer to a gckVGINTERRUPT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+#if gcvDEBUG
+gceSTATUS
+gckVGINTERRUPT_DumpState(
+    IN gckVGINTERRUPT Interrupt
+    )
+{
+    gcmkHEADER_ARG("Interrupt=0x%x", Interrupt);
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Interrupt, gcvOBJ_INTERRUPT);
+
+    /* Print the header. */
+    gcmkTRACE_ZONE(
+        gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+        "%s: INTERRUPT OBJECT STATUS\n",
+        __FUNCTION__
+        );
+
+    /* Print statistics. */
+#if gcmENABLE_INTERRUPT_STATISTICS
+    gcmkTRACE_ZONE(
+        gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+        "  Maximum number of FIFO items accumulated at a single time: %d\n",
+        Interrupt->maxFifoItems
+        );
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+        "  Interrupt FIFO overflow happened times: %d\n",
+        Interrupt->fifoOverflow
+        );
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+        "  Maximum number of interrupts simultaneously generated: %d\n",
+        Interrupt->maxSimultaneous
+        );
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+        "  Number of times when there were multiple interrupts generated: %d\n",
+        Interrupt->multipleCount
+        );
+#endif
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+        "  The current number of entries in the FIFO: %d\n",
+        Interrupt->fifoItems
+        );
+
+    /* Print the FIFO contents. */
+    if (Interrupt->fifoItems != 0)
+    {
+        gctUINT8 index;
+        gctUINT8 last;
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+            "  FIFO current contents:\n"
+            );
+
+        /* Get the current pointers. */
+        index = Interrupt->tail;
+        last  = Interrupt->head;
+
+        while (index != last)
+        {
+            /* Advance to the next entry. */
+            index += 1;
+
+            gcmkTRACE_ZONE(
+                gcvLEVEL_VERBOSE, gcvZONE_COMMAND,
+                "    %d: 0x%08X\n",
+                index, Interrupt->fifo[index]
+                );
+        }
+    }
+
+    gcmkFOOTER_NO();
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+#endif
+
+
+/*******************************************************************************
+**
+**  gckVGINTERRUPT_Enable
+**
+**  Enable the specified interrupt.
+**
+**  INPUT:
+**
+**      Interrupt
+**          Pointer to a gckVGINTERRUPT object.
+**
+**      Id
+**          Pointer to the variable that holds the interrupt number to be
+**          registered in range 0..31.
+**          If the value is less then 0, gckVGINTERRUPT_Enable will attempt
+**          to find an unused interrupt. If such interrupt is found, the number
+**          will be assigned to the variable if the functuion call succeedes.
+**
+**      Handler
+**          Pointer to the handler to register for the interrupt.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+gceSTATUS
+gckVGINTERRUPT_Enable(
+    IN gckVGINTERRUPT Interrupt,
+    IN OUT gctINT32_PTR Id,
+    IN gctINTERRUPT_HANDLER Handler
+    )
+{
+    gceSTATUS status;
+    gctINT32 i;
+
+    gcmkHEADER_ARG("Interrupt=0x%x Id=0x%x Handler=0x%x", Interrupt, Id, Handler);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Interrupt, gcvOBJ_INTERRUPT);
+    gcmkVERIFY_ARGUMENT(Id != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Handler != gcvNULL);
+
+    do
+    {
+        /* See if we need to allocate an ID. */
+        if (*Id < 0)
+        {
+            /* Find the first unused interrupt handler. */
+            for (i = 0; i < gcmCOUNTOF(Interrupt->handlers); ++i)
+            {
+                if (Interrupt->handlers[i] == gcvNULL)
+                {
+                    break;
+                }
+            }
+
+            /* No unused innterrupts? */
+            if (i == gcmCOUNTOF(Interrupt->handlers))
+            {
+                status = gcvSTATUS_OUT_OF_RESOURCES;
+                break;
+            }
+
+            /* Update the interrupt ID. */
+            *Id = i;
+        }
+
+        /* Make sure the ID is in range. */
+        else if (*Id >= gcmCOUNTOF(Interrupt->handlers))
+        {
+            status = gcvSTATUS_INVALID_ARGUMENT;
+            break;
+        }
+
+        /* Set interrupt handler. */
+        Interrupt->handlers[*Id] = Handler;
+
+        /* Success. */
+        status = gcvSTATUS_OK;
+    }
+    while (gcvFALSE);
+
+    gcmkFOOTER();
+    /* Return the status. */
+    return status;
+}
+
+
+/*******************************************************************************
+**
+**  gckVGINTERRUPT_Disable
+**
+**  Disable the specified interrupt.
+**
+**  INPUT:
+**
+**      Interrupt
+**          Pointer to a gckVGINTERRUPT object.
+**
+**      Id
+**          Interrupt number to be disabled in range 0..31.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+gceSTATUS
+gckVGINTERRUPT_Disable(
+    IN gckVGINTERRUPT Interrupt,
+    IN gctINT32 Id
+    )
+{
+    gcmkHEADER_ARG("Interrupt=0x%x Id=0x%x", Interrupt, Id);
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Interrupt, gcvOBJ_INTERRUPT);
+    gcmkVERIFY_ARGUMENT((Id >= 0) && (Id < gcmCOUNTOF(Interrupt->handlers)));
+
+    /* Reset interrupt handler. */
+    Interrupt->handlers[Id] = gcvNULL;
+
+    gcmkFOOTER_NO();
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+
+/*******************************************************************************
+**
+**  gckVGINTERRUPT_Enque
+**
+**  Read the interrupt status register and put the value in the interrupt FIFO.
+**
+**  INPUT:
+**
+**      Interrupt
+**          Pointer to a gckVGINTERRUPT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+#ifndef __QNXNTO__
+gceSTATUS
+gckVGINTERRUPT_Enque(
+    IN gckVGINTERRUPT Interrupt
+    )
+#else
+gceSTATUS
+gckVGINTERRUPT_Enque(
+    IN gckVGINTERRUPT Interrupt,
+    OUT gckOS *Os,
+    OUT gctSEMAPHORE *Semaphore
+    )
+#endif
+{
+    gceSTATUS status;
+    gctUINT32 triggered;
+
+    gcmkHEADER_ARG("Interrupt=0x%x", Interrupt);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Interrupt, gcvOBJ_INTERRUPT);
+
+#ifdef __QNXNTO__
+    *Os = gcvNULL;
+    *Semaphore = gcvNULL;
+#endif
+
+    do
+    {
+        /* Read interrupt status register. */
+        gcmkERR_BREAK(gckVGHARDWARE_ReadInterrupt(
+            Interrupt->kernel->hardware, &triggered
+            ));
+
+        /* Mask out TS overflow interrupt */
+        triggered &= 0xfffffffe;
+
+        /* No interrupts to process? */
+        if (triggered == 0)
+        {
+            status = gcvSTATUS_NOT_OUR_INTERRUPT;
+            break;
+        }
+
+        /* FIFO overflow? */
+        if (Interrupt->fifoItems == gcmCOUNTOF(Interrupt->fifo))
+        {
+#if gcmENABLE_INTERRUPT_STATISTICS
+            Interrupt->fifoOverflow += 1;
+#endif
+
+            /* OR the interrupt with the last value in the FIFO. */
+            Interrupt->fifo[Interrupt->head] |= triggered;
+
+            /* Success (kind of). */
+            status = gcvSTATUS_OK;
+        }
+        else
+        {
+            /* Advance to the next entry. */
+            Interrupt->head      += 1;
+            Interrupt->fifoItems += 1;
+
+#if gcmENABLE_INTERRUPT_STATISTICS
+            if (Interrupt->fifoItems > Interrupt->maxFifoItems)
+            {
+                Interrupt->maxFifoItems = Interrupt->fifoItems;
+            }
+#endif
+
+            /* Set the new value. */
+            Interrupt->fifo[Interrupt->head] = triggered;
+
+#ifndef __QNXNTO__
+            /* Increment the FIFO semaphore. */
+            gcmkERR_BREAK(gckOS_IncrementSemaphore(
+                Interrupt->os, Interrupt->fifoValid
+                ));
+#else
+            *Os = Interrupt->os;
+            *Semaphore = Interrupt->fifoValid;
+#endif
+
+            /* Windows kills our threads prematurely when the application
+               exists. Verify here that the thread is still alive. */
+            status = gckOS_VerifyThread(Interrupt->os, Interrupt->handler);
+
+            /* Has the thread been prematurely terminated? */
+            if (status != gcvSTATUS_OK)
+            {
+                /* Process all accumulated interrupts. */
+                while (Interrupt->head != Interrupt->tail)
+                {
+#if gcmENABLE_INTERRUPT_STATISTICS
+                    /* Process the interrupt. */
+                    _ProcessInterrupt(Interrupt, gcvNULL);
+#else
+                    /* Process the interrupt. */
+                    _ProcessInterrupt(Interrupt);
+#endif
+                }
+
+                /* Set success. */
+                status = gcvSTATUS_OK;
+            }
+        }
+    }
+    while (gcvFALSE);
+
+    gcmkFOOTER();
+    /* Return status. */
+    return status;
+}
+
+#endif /* gcdENABLE_VG */

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_mmu_vg.c

@@ -0,0 +1,556 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#if gcdENABLE_VG
+
+#define _GC_OBJ_ZONE    gcvZONE_MMU
+
+/*******************************************************************************
+**
+**  gckVGMMU_Construct
+**
+**  Construct a new gckVGMMU object.
+**
+**  INPUT:
+**
+**      gckVGKERNEL Kernel
+**          Pointer to an gckVGKERNEL object.
+**
+**      gctSIZE_T MmuSize
+**          Number of bytes for the page table.
+**
+**  OUTPUT:
+**
+**      gckVGMMU * Mmu
+**          Pointer to a variable that receives the gckVGMMU object pointer.
+*/
+gceSTATUS gckVGMMU_Construct(
+    IN gckVGKERNEL Kernel,
+    IN gctUINT32 MmuSize,
+    OUT gckVGMMU * Mmu
+    )
+{
+    gckOS os;
+    gckVGHARDWARE hardware;
+    gceSTATUS status;
+    gckVGMMU mmu;
+    gctUINT32 * pageTable;
+    gctUINT32 i;
+
+    gcmkHEADER_ARG("Kernel=0x%x MmuSize=0x%x Mmu=0x%x", Kernel, MmuSize, Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(MmuSize > 0);
+    gcmkVERIFY_ARGUMENT(Mmu != gcvNULL);
+
+    /* Extract the gckOS object pointer. */
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Extract the gckVGHARDWARE object pointer. */
+    hardware = Kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    /* Allocate memory for the gckVGMMU object. */
+    status = gckOS_Allocate(os, sizeof(struct _gckVGMMU), (gctPOINTER *) &mmu);
+
+    if (status < 0)
+    {
+        /* Error. */
+        gcmkFATAL(
+            "%s(%d): could not allocate gckVGMMU object.",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkFOOTER();
+        return status;
+    }
+
+    /* Initialize the gckVGMMU object. */
+    mmu->object.type = gcvOBJ_MMU;
+    mmu->os = os;
+    mmu->hardware = hardware;
+
+    /* Create the mutex. */
+    status = gckOS_CreateMutex(os, &mmu->mutex);
+
+    if (status < 0)
+    {
+        /* Roll back. */
+        mmu->object.type = gcvOBJ_UNKNOWN;
+        gcmkVERIFY_OK(gckOS_Free(os, mmu));
+
+        gcmkFOOTER();
+        /* Error. */
+        return status;
+    }
+
+    /* Allocate the page table. */
+    mmu->pageTableSize = (gctUINT32)MmuSize;
+    status = gckOS_AllocateContiguous(os,
+                                      gcvFALSE,
+                                      &mmu->pageTableSize,
+                                      &mmu->pageTablePhysical,
+                                      &mmu->pageTableLogical);
+
+    if (status < 0)
+    {
+        /* Roll back. */
+        gcmkVERIFY_OK(gckOS_DeleteMutex(os, mmu->mutex));
+
+        mmu->object.type = gcvOBJ_UNKNOWN;
+        gcmkVERIFY_OK(gckOS_Free(os, mmu));
+
+        /* Error. */
+        gcmkFATAL(
+            "%s(%d): could not allocate page table.",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkFOOTER();
+        return status;
+    }
+
+    /* Compute number of entries in page table. */
+    mmu->entryCount = (gctUINT32)mmu->pageTableSize / sizeof(gctUINT32);
+    mmu->entry = 0;
+
+    /* Mark the entire page table as available. */
+    pageTable = (gctUINT32 *) mmu->pageTableLogical;
+    for (i = 0; i < mmu->entryCount; i++)
+    {
+        pageTable[i] = (gctUINT32)~0;
+    }
+
+    /* Set page table address. */
+    status = gckVGHARDWARE_SetMMU(hardware, mmu->pageTableLogical);
+
+    if (status < 0)
+    {
+        /* Free the page table. */
+        gcmkVERIFY_OK(gckOS_FreeContiguous(mmu->os,
+                                      mmu->pageTablePhysical,
+                                      mmu->pageTableLogical,
+                                      mmu->pageTableSize));
+
+        /* Roll back. */
+        gcmkVERIFY_OK(gckOS_DeleteMutex(os, mmu->mutex));
+
+        mmu->object.type = gcvOBJ_UNKNOWN;
+        gcmkVERIFY_OK(gckOS_Free(os, mmu));
+
+        /* Error. */
+        gcmkFATAL(
+            "%s(%d): could not program page table.",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkFOOTER();
+        return status;
+    }
+
+    /* Return the gckVGMMU object pointer. */
+    *Mmu = mmu;
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_MMU,
+        "%s(%d): %u entries at %p.(0x%08X)\n",
+        __FUNCTION__, __LINE__,
+        mmu->entryCount,
+        mmu->pageTableLogical,
+        mmu->pageTablePhysical
+        );
+
+    gcmkFOOTER_NO();
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckVGMMU_Destroy
+**
+**  Destroy a nAQMMU object.
+**
+**  INPUT:
+**
+**      gckVGMMU Mmu
+**          Pointer to an gckVGMMU object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS gckVGMMU_Destroy(
+    IN gckVGMMU Mmu
+    )
+{
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+
+    /* Free the page table. */
+    gcmkVERIFY_OK(gckOS_FreeContiguous(Mmu->os,
+                                  Mmu->pageTablePhysical,
+                                  Mmu->pageTableLogical,
+                                  Mmu->pageTableSize));
+
+    /* Roll back. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Mmu->os, Mmu->mutex));
+
+    /* Mark the gckVGMMU object as unknown. */
+    Mmu->object.type = gcvOBJ_UNKNOWN;
+
+    /* Free the gckVGMMU object. */
+    gcmkVERIFY_OK(gckOS_Free(Mmu->os, Mmu));
+
+    gcmkFOOTER_NO();
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckVGMMU_AllocatePages
+**
+**  Allocate pages inside the page table.
+**
+**  INPUT:
+**
+**      gckVGMMU Mmu
+**          Pointer to an gckVGMMU object.
+**
+**      gctSIZE_T PageCount
+**          Number of pages to allocate.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * PageTable
+**          Pointer to a variable that receives the base address of the page
+**          table.
+**
+**      gctUINT32 * Address
+**          Pointer to a variable that receives the hardware specific address.
+*/
+gceSTATUS gckVGMMU_AllocatePages(
+    IN gckVGMMU Mmu,
+    IN gctSIZE_T PageCount,
+    OUT gctPOINTER * PageTable,
+    OUT gctUINT32 * Address
+    )
+{
+    gceSTATUS status;
+    gctUINT32 tail, index, i;
+    gctUINT32 * table;
+    gctBOOL allocated = gcvFALSE;
+
+    gcmkHEADER_ARG("Mmu=0x%x PageCount=0x%x PageTable=0x%x Address=0x%x",
+        Mmu, PageCount, PageTable, Address);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT(PageCount > 0);
+    gcmkVERIFY_ARGUMENT(PageTable != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_MMU,
+        "%s(%d): %u pages.\n",
+        __FUNCTION__, __LINE__,
+        PageCount
+        );
+
+    if (PageCount > Mmu->entryCount)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_MMU,
+            "%s(%d): page table too small for %u pages.\n",
+            __FUNCTION__, __LINE__,
+            PageCount
+            );
+
+        gcmkFOOTER_NO();
+        /* Not enough pages avaiable. */
+        return gcvSTATUS_OUT_OF_RESOURCES;
+    }
+
+    /* Grab the mutex. */
+    status = gckOS_AcquireMutex(Mmu->os, Mmu->mutex, gcvINFINITE);
+
+    if (status < 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_MMU,
+            "%s(%d): could not acquire mutex.\n"
+            ,__FUNCTION__, __LINE__
+            );
+
+        gcmkFOOTER();
+        /* Error. */
+        return status;
+    }
+
+    /* Compute the tail for this allocation. */
+    tail = Mmu->entryCount - (gctUINT32)PageCount;
+
+    /* Walk all entries until we find enough slots. */
+    for (index = Mmu->entry; index <= tail;)
+    {
+        /* Access page table. */
+        table = (gctUINT32 *) Mmu->pageTableLogical + index;
+
+        /* See if all slots are available. */
+        for (i = 0; i < PageCount; i++, table++)
+        {
+            if (*table != ~0)
+            {
+                /* Start from next slot. */
+                index += i + 1;
+                break;
+            }
+        }
+
+        if (i == PageCount)
+        {
+            /* Bail out if we have enough page entries. */
+            allocated = gcvTRUE;
+            break;
+        }
+    }
+
+    if (!allocated)
+    {
+        if (status >= 0)
+        {
+            /* Walk all entries until we find enough slots. */
+            for (index = 0; index <= tail;)
+            {
+                /* Access page table. */
+                table = (gctUINT32 *) Mmu->pageTableLogical + index;
+
+                /* See if all slots are available. */
+                for (i = 0; i < PageCount; i++, table++)
+                {
+                    if (*table != ~0)
+                    {
+                        /* Start from next slot. */
+                        index += i + 1;
+                        break;
+                    }
+                }
+
+                if (i == PageCount)
+                {
+                    /* Bail out if we have enough page entries. */
+                    allocated = gcvTRUE;
+                    break;
+                }
+            }
+        }
+    }
+
+    if (!allocated && (status >= 0))
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_MMU,
+            "%s(%d): not enough free pages for %u pages.\n",
+            __FUNCTION__, __LINE__,
+            PageCount
+            );
+
+        /* Not enough empty slots available. */
+        status = gcvSTATUS_OUT_OF_RESOURCES;
+    }
+
+    if (status >= 0)
+    {
+        /* Build virtual address. */
+        status = gckVGHARDWARE_BuildVirtualAddress(Mmu->hardware,
+                                                 index,
+                                                 0,
+                                                 Address);
+
+        if (status >= 0)
+        {
+            /* Update current entry into page table. */
+            Mmu->entry = index + (gctUINT32)PageCount;
+
+            /* Return pointer to page table. */
+            *PageTable = (gctUINT32 *)  Mmu->pageTableLogical + index;
+
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_MMU,
+                "%s(%d): allocated %u pages at index %u (0x%08X) @ %p.\n",
+                __FUNCTION__, __LINE__,
+                PageCount,
+                index,
+                *Address,
+                *PageTable
+                );
+            }
+    }
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->mutex));
+    gcmkFOOTER();
+
+    /* Return status. */
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckVGMMU_FreePages
+**
+**  Free pages inside the page table.
+**
+**  INPUT:
+**
+**      gckVGMMU Mmu
+**          Pointer to an gckVGMMU object.
+**
+**      gctPOINTER PageTable
+**          Base address of the page table to free.
+**
+**      gctSIZE_T PageCount
+**          Number of pages to free.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS gckVGMMU_FreePages(
+    IN gckVGMMU Mmu,
+    IN gctPOINTER PageTable,
+    IN gctSIZE_T PageCount
+    )
+{
+    gctUINT32 * table;
+
+    gcmkHEADER_ARG("Mmu=0x%x PageTable=0x%x PageCount=0x%x",
+        Mmu, PageTable, PageCount);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT(PageTable != gcvNULL);
+    gcmkVERIFY_ARGUMENT(PageCount > 0);
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_MMU,
+        "%s(%d): freeing %u pages at index %u @ %p.\n",
+        __FUNCTION__, __LINE__,
+        PageCount,
+        ((gctUINT32 *) PageTable - (gctUINT32 *) Mmu->pageTableLogical),
+        PageTable
+        );
+
+    /* Convert pointer. */
+    table = (gctUINT32 *) PageTable;
+
+    /* Mark the page table entries as available. */
+    while (PageCount-- > 0)
+    {
+        *table++ = (gctUINT32)~0;
+    }
+
+    gcmkFOOTER_NO();
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckVGMMU_SetPage(
+    IN gckVGMMU Mmu,
+    IN gctUINT32 PageAddress,
+    IN gctUINT32 *PageEntry
+    )
+{
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT(PageEntry != gcvNULL);
+    gcmkVERIFY_ARGUMENT(!(PageAddress & 0xFFF));
+
+    *PageEntry = PageAddress;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckVGMMU_Flush(
+   IN gckVGMMU Mmu
+   )
+{
+    gckVGHARDWARE hardware;
+
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    hardware = Mmu->hardware;
+    gcmkVERIFY_OK(
+        gckOS_AtomSet(hardware->os, hardware->pageTableDirty, 1));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+#endif /* gcdENABLE_VG */

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_power.c

@@ -0,0 +1,381 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_POWER
+
+/******************************************************************************\
+************************ Dynamic Voltage Frequency Setting *********************
+\******************************************************************************/
+#if gcdDVFS
+static gctUINT32
+_GetLoadHistory(
+    IN gckDVFS Dvfs,
+    IN gctUINT32 Select,
+    IN gctUINT32 Index
+)
+{
+    return Dvfs->loads[Index];
+}
+
+static void
+_IncreaseScale(
+    IN gckDVFS Dvfs,
+    IN gctUINT32 Load,
+    OUT gctUINT8 *Scale
+    )
+{
+    if (Dvfs->currentScale < 32)
+    {
+        *Scale = Dvfs->currentScale + 8;
+    }
+    else
+    {
+        *Scale = Dvfs->currentScale + 8;
+        *Scale = gcmMIN(64, *Scale);
+    }
+}
+
+static void
+_RecordFrequencyHistory(
+    gckDVFS Dvfs,
+    gctUINT32 Frequency
+    )
+{
+    gctUINT32 i = 0;
+
+    struct _FrequencyHistory *history = Dvfs->frequencyHistory;
+
+    for (i = 0; i < 16; i++)
+    {
+        if (history->frequency == Frequency)
+        {
+            break;
+        }
+
+        if (history->frequency == 0)
+        {
+            history->frequency = Frequency;
+            break;
+        }
+
+        history++;
+    }
+
+    if (i < 16)
+    {
+        history->count++;
+    }
+}
+
+static gctUINT32
+_GetFrequencyHistory(
+    gckDVFS Dvfs,
+    gctUINT32 Frequency
+    )
+{
+    gctUINT32 i = 0;
+
+    struct _FrequencyHistory * history = Dvfs->frequencyHistory;
+
+    for (i = 0; i < 16; i++)
+    {
+        if (history->frequency == Frequency)
+        {
+            break;
+        }
+
+        history++;
+    }
+
+    if (i < 16)
+    {
+        return history->count;
+    }
+
+    return 0;
+}
+
+static void
+_Policy(
+    IN gckDVFS Dvfs,
+    IN gctUINT32 Load,
+    OUT gctUINT8 *Scale
+    )
+{
+    gctUINT8 load[4], nextLoad;
+    gctUINT8 scale;
+
+    /* Last 4 history. */
+    load[0] = (Load & 0xFF);
+    load[1] = (Load & 0xFF00) >> 8;
+    load[2] = (Load & 0xFF0000) >> 16;
+    load[3] = (Load & 0xFF000000) >> 24;
+
+    /* Determine target scale. */
+    if (load[0] > 54)
+    {
+        _IncreaseScale(Dvfs, Load, &scale);
+    }
+    else
+    {
+        nextLoad = (load[0] + load[1] + load[2] + load[3])/4;
+
+        scale = Dvfs->currentScale * (nextLoad) / 54;
+
+        scale = gcmMAX(1, scale);
+        scale = gcmMIN(64, scale);
+    }
+
+    Dvfs->totalConfig++;
+
+    Dvfs->loads[(load[0]-1)/8]++;
+
+    *Scale = scale;
+
+
+    if (Dvfs->totalConfig % 100 == 0)
+    {
+        gcmkPRINT("=======================================================");
+        gcmkPRINT("GPU Load:       %-8d %-8d %-8d %-8d %-8d %-8d %-8d %-8d",
+                                   8, 16, 24, 32, 40, 48, 56, 64);
+        gcmkPRINT("                %-8d %-8d %-8d %-8d %-8d %-8d %-8d %-8d",
+                  _GetLoadHistory(Dvfs,2, 0),
+                  _GetLoadHistory(Dvfs,2, 1),
+                  _GetLoadHistory(Dvfs,2, 2),
+                  _GetLoadHistory(Dvfs,2, 3),
+                  _GetLoadHistory(Dvfs,2, 4),
+                  _GetLoadHistory(Dvfs,2, 5),
+                  _GetLoadHistory(Dvfs,2, 6),
+                  _GetLoadHistory(Dvfs,2, 7)
+                  );
+
+        gcmkPRINT("Frequency(MHz)  %-8d %-8d %-8d %-8d %-8d",
+                  58, 120, 240, 360, 480);
+        gcmkPRINT("                %-8d %-8d %-8d %-8d %-8d",
+                  _GetFrequencyHistory(Dvfs, 58),
+                  _GetFrequencyHistory(Dvfs,120),
+                  _GetFrequencyHistory(Dvfs,240),
+                  _GetFrequencyHistory(Dvfs,360),
+                  _GetFrequencyHistory(Dvfs,480)
+                  );
+    }
+}
+
+static void
+_TimerFunction(
+    gctPOINTER Data
+    )
+{
+    gceSTATUS status;
+    gckDVFS dvfs = (gckDVFS) Data;
+    gckHARDWARE hardware = dvfs->hardware;
+    gctUINT32 value;
+    gctUINT32 frequency;
+    gctUINT8 scale;
+    gctUINT32 t1, t2, consumed;
+
+    gckOS_GetTicks(&t1);
+
+    gcmkONERROR(gckHARDWARE_QueryLoad(hardware, &value));
+
+    /* determine target sacle. */
+    _Policy(dvfs, value, &scale);
+
+    /* Set frequency and voltage. */
+    gcmkONERROR(gckOS_SetGPUFrequency(hardware->os, hardware->core, scale));
+
+    /* Query real frequency. */
+    gcmkONERROR(
+        gckOS_QueryGPUFrequency(hardware->os,
+                                hardware->core,
+                                &frequency,
+                                &dvfs->currentScale));
+
+    _RecordFrequencyHistory(dvfs, frequency);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_POWER,
+                   "Current frequency = %d",
+                   frequency);
+
+    /* Set period. */
+    gcmkONERROR(gckHARDWARE_SetDVFSPeroid(hardware, frequency));
+
+OnError:
+    /* Determine next querying time. */
+    gckOS_GetTicks(&t2);
+
+    consumed = gcmMIN(((long)t2 - (long)t1), 5);
+
+    if (dvfs->stop == gcvFALSE)
+    {
+        gcmkVERIFY_OK(gckOS_StartTimer(hardware->os,
+                                       dvfs->timer,
+                                       dvfs->pollingTime - consumed));
+    }
+
+    return;
+}
+
+gceSTATUS
+gckDVFS_Construct(
+    IN gckHARDWARE Hardware,
+    OUT gckDVFS * Dvfs
+    )
+{
+    gceSTATUS status;
+    gctPOINTER pointer;
+    gckDVFS dvfs = gcvNULL;
+    gckOS os = Hardware->os;
+
+    gcmkHEADER_ARG("Hardware=0x%X", Hardware);
+
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    /* Allocate a gckDVFS manager. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(struct _gckDVFS), &pointer));
+
+    gckOS_ZeroMemory(pointer, gcmSIZEOF(struct _gckDVFS));
+
+    dvfs = pointer;
+
+    /* Initialization. */
+    dvfs->hardware = Hardware;
+    dvfs->pollingTime = gcdDVFS_POLLING_TIME;
+    dvfs->os = Hardware->os;
+    dvfs->currentScale = 64;
+
+    /* Create a polling timer. */
+    gcmkONERROR(gckOS_CreateTimer(os, _TimerFunction, pointer, &dvfs->timer));
+
+    /* Initialize frequency and voltage adjustment helper. */
+    gcmkONERROR(gckOS_PrepareGPUFrequency(os, Hardware->core));
+
+    /* Return result. */
+    *Dvfs = dvfs;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (dvfs)
+    {
+        if (dvfs->timer)
+        {
+            gcmkVERIFY_OK(gckOS_DestroyTimer(os, dvfs->timer));
+        }
+
+        gcmkOS_SAFE_FREE(os, dvfs);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckDVFS_Destroy(
+    IN gckDVFS Dvfs
+    )
+{
+    gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    /* Deinitialize helper fuunction. */
+    gcmkVERIFY_OK(gckOS_FinishGPUFrequency(Dvfs->os, Dvfs->hardware->core));
+
+    /* DestroyTimer. */
+    gcmkVERIFY_OK(gckOS_DestroyTimer(Dvfs->os, Dvfs->timer));
+
+    gcmkOS_SAFE_FREE(Dvfs->os, Dvfs);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckDVFS_Start(
+    IN gckDVFS Dvfs
+    )
+{
+    gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    gckHARDWARE_InitDVFS(Dvfs->hardware);
+
+    Dvfs->stop = gcvFALSE;
+
+    gckOS_StartTimer(Dvfs->os, Dvfs->timer, Dvfs->pollingTime);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckDVFS_Stop(
+    IN gckDVFS Dvfs
+    )
+{
+    gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    Dvfs->stop = gcvTRUE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+#endif

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_precomp.h

@@ -0,0 +1,63 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_precomp_h_
+#define __gc_hal_kernel_precomp_h_
+
+#include "gc_hal.h"
+#include "gc_hal_driver.h"
+#include "gc_hal_kernel.h"
+
+#endif /* __gc_hal_kernel_precomp_h_ */

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_security.c

@@ -0,0 +1,286 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+
+
+
+#define _GC_OBJ_ZONE    gcvZONE_KERNEL
+
+#if gcdSECURITY
+
+/*
+** Open a security service channel.
+*/
+gceSTATUS
+gckKERNEL_SecurityOpen(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 GPU,
+    OUT gctUINT32 *Channel
+    )
+{
+    gceSTATUS status;
+
+    gcmkONERROR(gckOS_OpenSecurityChannel(Kernel->os, Kernel->core, Channel));
+    gcmkONERROR(gckOS_InitSecurityChannel(*Channel));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+/*
+** Close a security service channel
+*/
+gceSTATUS
+gckKERNEL_SecurityClose(
+    IN gctUINT32 Channel
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+/*
+** Security service interface.
+*/
+gceSTATUS
+gckKERNEL_SecurityCallService(
+    IN gctUINT32 Channel,
+    IN OUT gcsTA_INTERFACE * Interface
+)
+{
+    gceSTATUS status;
+    gcmkHEADER();
+
+    gcmkVERIFY_ARGUMENT(Interface != gcvNULL);
+
+    gckOS_CallSecurityService(Channel, Interface);
+
+    status = Interface->result;
+
+    gcmkONERROR(status);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityStartCommand(
+    IN gckKERNEL Kernel
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_START_COMMAND;
+    iface.u.StartCommand.gpu = Kernel->core;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityAllocateSecurityMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Bytes,
+    OUT gctUINT32 * Handle
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_ALLOCATE_SECRUE_MEMORY;
+    iface.u.AllocateSecurityMemory.bytes = Bytes;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    *Handle = iface.u.AllocateSecurityMemory.memory_handle;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityExecute(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Buffer,
+    IN gctUINT32 Bytes
+    )
+{
+    gceSTATUS status;
+#if defined(LINUX)
+    gctPHYS_ADDR_T physical;
+    gctUINT32 address;
+#endif
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_EXECUTE;
+    iface.u.Execute.command_buffer = (gctUINT32 *)Buffer;
+    iface.u.Execute.gpu = Kernel->core;
+    iface.u.Execute.command_buffer_length = Bytes;
+
+#if defined(LINUX)
+    gcmkONERROR(gckOS_GetPhysicalAddress(Kernel->os, Buffer, &physical));
+    gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(Kernel->os, physical, &physical));
+    gcmkSAFECASTPHYSADDRT(address, physical);
+
+    iface.u.Execute.command_buffer = (gctUINT32 *)address;
+#endif
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    /* Update queue tail pointer. */
+    gcmkONERROR(gckHARDWARE_UpdateQueueTail(
+        Kernel->hardware, 0, 0
+        ));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityMapMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 *PhysicalArray,
+    IN gctUINT32 PageCount,
+    OUT gctUINT32 * GPUAddress
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+#if defined(LINUX)
+    gctPHYS_ADDR_T physical;
+    gctUINT32 address;
+#endif
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_MAP_MEMORY;
+
+#if defined(LINUX)
+    gcmkONERROR(gckOS_GetPhysicalAddress(Kernel->os, PhysicalArray, &physical));
+    gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(Kernel->os, physical, &physical));
+    gcmkSAFECASTPHYSADDRT(address, physical);
+    iface.u.MapMemory.physicals = (gctUINT32 *)address;
+#endif
+
+    iface.u.MapMemory.pageCount = PageCount;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    *GPUAddress = iface.u.MapMemory.gpuAddress;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityUnmapMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 GPUAddress,
+    IN gctUINT32 PageCount
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_UNMAP_MEMORY;
+
+    iface.u.UnmapMemory.gpuAddress = GPUAddress;
+    iface.u.UnmapMemory.pageCount  = PageCount;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+#endif

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_security_v1.c

@@ -0,0 +1,320 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+
+
+
+#define _GC_OBJ_ZONE    gcvZONE_KERNEL
+
+#if gcdENABLE_TRUST_APPLICATION
+
+/*
+** Open a security service channel.
+*/
+gceSTATUS
+gckKERNEL_SecurityOpen(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 GPU,
+    OUT gctUINT32 *Channel
+    )
+{
+    gceSTATUS status;
+
+    gcmkONERROR(gckOS_OpenSecurityChannel(Kernel->os, Kernel->core, Channel));
+    gcmkONERROR(gckOS_InitSecurityChannel(*Channel));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+/*
+** Close a security service channel
+*/
+gceSTATUS
+gckKERNEL_SecurityClose(
+    IN gctUINT32 Channel
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+/*
+** Security service interface.
+*/
+gceSTATUS
+gckKERNEL_SecurityCallService(
+    IN gctUINT32 Channel,
+    IN OUT gcsTA_INTERFACE * Interface
+)
+{
+    gceSTATUS status;
+    gcmkHEADER();
+
+    gcmkVERIFY_ARGUMENT(Interface != gcvNULL);
+
+    gckOS_CallSecurityService(Channel, Interface);
+
+    status = Interface->result;
+
+    gcmkONERROR(status);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityStartCommand(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Address,
+    IN gctUINT32 Bytes
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_START_COMMAND;
+    iface.u.StartCommand.gpu = Kernel->core;
+    iface.u.StartCommand.address = Address;
+    iface.u.StartCommand.bytes = Bytes;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityAllocateSecurityMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Bytes,
+    OUT gctUINT32 * Handle
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_ALLOCATE_SECRUE_MEMORY;
+    iface.u.AllocateSecurityMemory.bytes = Bytes;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    *Handle = iface.u.AllocateSecurityMemory.memory_handle;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityMapMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 *PhysicalArray,
+    IN gctPHYS_ADDR_T Physical,
+    IN gctUINT32 PageCount,
+    OUT gctUINT32 * GPUAddress
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_MAP_MEMORY;
+
+    iface.u.MapMemory.physicals = PhysicalArray;
+    iface.u.MapMemory.physical = Physical;
+    iface.u.MapMemory.pageCount = PageCount;
+    iface.u.MapMemory.gpuAddress = *GPUAddress;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_SecurityDumpMMUException(
+    IN gckKERNEL Kernel
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_DUMP_MMU_EXCEPTION;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+
+
+gceSTATUS
+gckKERNEL_SecurityUnmapMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 GPUAddress,
+    IN gctUINT32 PageCount
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_UNMAP_MEMORY;
+
+    iface.u.UnmapMemory.gpuAddress = GPUAddress;
+    iface.u.UnmapMemory.pageCount  = PageCount;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_ReadMMUException(
+    IN gckKERNEL Kernel,
+    IN gctUINT32_PTR MMUStatus,
+    IN gctUINT32_PTR MMUException
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_READ_MMU_EXCEPTION;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    *MMUStatus = iface.u.ReadMMUException.mmuStatus;
+    *MMUException = iface.u.ReadMMUException.mmuException;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_HandleMMUException(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 MMUStatus,
+    IN gctPHYS_ADDR_T Physical,
+    IN gctUINT32 GPUAddress
+    )
+{
+    gceSTATUS status;
+    gcsTA_INTERFACE iface;
+
+    gcmkHEADER();
+
+    iface.command = KERNEL_HANDLE_MMU_EXCEPTION;
+
+    iface.u.HandleMMUException.mmuStatus = MMUStatus;
+    iface.u.HandleMMUException.physical = Physical;
+    iface.u.HandleMMUException.gpuAddress = GPUAddress;
+
+    gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+
+
+
+#endif

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_vg.c

@@ -0,0 +1,644 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#if gcdENABLE_VG
+
+#define _GC_OBJ_ZONE            gcvZONE_VG
+
+/******************************************************************************\
+******************************* gckKERNEL API Code ******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckKERNEL_Construct
+**
+**  Construct a new gckKERNEL object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      IN gctPOINTER Context
+**          Pointer to a driver defined context.
+**
+**  OUTPUT:
+**
+**      gckKERNEL * Kernel
+**          Pointer to a variable that will hold the pointer to the gckKERNEL
+**          object.
+*/
+gceSTATUS gckVGKERNEL_Construct(
+    IN gckOS Os,
+    IN gctPOINTER Context,
+    IN gckKERNEL  inKernel,
+    OUT gckVGKERNEL * Kernel
+    )
+{
+    gceSTATUS status;
+    gckVGKERNEL kernel = gcvNULL;
+
+    gcmkHEADER_ARG("Os=0x%x Context=0x%x", Os, Context);
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Kernel != gcvNULL);
+
+    do
+    {
+        /* Allocate the gckKERNEL object. */
+        gcmkERR_BREAK(gckOS_Allocate(
+            Os,
+            sizeof(struct _gckVGKERNEL),
+            (gctPOINTER *) &kernel
+            ));
+
+        /* Initialize the gckKERNEL object. */
+        kernel->object.type = gcvOBJ_KERNEL;
+        kernel->os          = Os;
+        kernel->context     = Context;
+        kernel->hardware    = gcvNULL;
+        kernel->interrupt   = gcvNULL;
+        kernel->command     = gcvNULL;
+        kernel->mmu         = gcvNULL;
+        kernel->kernel      = inKernel;
+
+        /* Construct the gckVGHARDWARE object. */
+        gcmkERR_BREAK(gckVGHARDWARE_Construct(
+            Os, &kernel->hardware
+            ));
+
+        /* Set pointer to gckKERNEL object in gckVGHARDWARE object. */
+        kernel->hardware->kernel = kernel;
+
+        /* Construct the gckVGINTERRUPT object. */
+        gcmkERR_BREAK(gckVGINTERRUPT_Construct(
+            kernel, &kernel->interrupt
+            ));
+
+        /* Construct the gckVGCOMMAND object. */
+        gcmkERR_BREAK(gckVGCOMMAND_Construct(
+            kernel, gcmKB2BYTES(8), gcmKB2BYTES(2), &kernel->command
+            ));
+
+        /* Construct the gckVGMMU object. */
+        gcmkERR_BREAK(gckVGMMU_Construct(
+            kernel, gcmKB2BYTES(gcdGC355_VGMMU_MEMORY_SIZE_KB), &kernel->mmu
+            ));
+
+        /* Return pointer to the gckKERNEL object. */
+        *Kernel = kernel;
+
+        gcmkFOOTER_ARG("*Kernel=0x%x", *Kernel);
+        /* Success. */
+        return gcvSTATUS_OK;
+    }
+    while (gcvFALSE);
+
+    /* Roll back. */
+    if (kernel != gcvNULL)
+    {
+        if (kernel->mmu != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckVGMMU_Destroy(kernel->mmu));
+        }
+
+        if (kernel->command != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckVGCOMMAND_Destroy(kernel->command));
+        }
+
+        if (kernel->interrupt != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckVGINTERRUPT_Destroy(kernel->interrupt));
+        }
+
+        if (kernel->hardware != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckVGHARDWARE_Destroy(kernel->hardware));
+        }
+
+        gcmkVERIFY_OK(gckOS_Free(Os, kernel));
+    }
+
+    gcmkFOOTER();
+    /* Return status. */
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_Destroy
+**
+**  Destroy an gckKERNEL object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS gckVGKERNEL_Destroy(
+    IN gckVGKERNEL Kernel
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Kernel=0x%x", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    do
+    {
+        /* Destroy the gckVGMMU object. */
+        if (Kernel->mmu != gcvNULL)
+        {
+            gcmkERR_BREAK(gckVGMMU_Destroy(Kernel->mmu));
+            Kernel->mmu = gcvNULL;
+        }
+
+        /* Destroy the gckVGCOMMAND object. */
+        if (Kernel->command != gcvNULL)
+        {
+            gcmkERR_BREAK(gckVGCOMMAND_Destroy(Kernel->command));
+            Kernel->command = gcvNULL;
+        }
+
+        /* Destroy the gckVGINTERRUPT object. */
+        if (Kernel->interrupt != gcvNULL)
+        {
+            gcmkERR_BREAK(gckVGINTERRUPT_Destroy(Kernel->interrupt));
+            Kernel->interrupt = gcvNULL;
+        }
+
+        /* Destroy the gckVGHARDWARE object. */
+        if (Kernel->hardware != gcvNULL)
+        {
+            gcmkERR_BREAK(gckVGHARDWARE_Destroy(Kernel->hardware));
+            Kernel->hardware = gcvNULL;
+        }
+
+        /* Mark the gckKERNEL object as unknown. */
+        Kernel->object.type = gcvOBJ_UNKNOWN;
+
+        /* Free the gckKERNEL object. */
+        gcmkERR_BREAK(gckOS_Free(Kernel->os, Kernel));
+    }
+    while (gcvFALSE);
+
+    gcmkFOOTER();
+
+    /* Return status. */
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_Dispatch
+**
+**  Dispatch a command received from the user HAL layer.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that defines the command to
+**          be dispatched.
+**
+**  OUTPUT:
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that receives any data to be
+**          returned.
+*/
+gceSTATUS gckVGKERNEL_Dispatch(
+    IN gckKERNEL Kernel,
+    IN gctBOOL FromUser,
+    IN OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE * kernelInterface = Interface;
+    gctUINT32 processID;
+    gckKERNEL kernel = Kernel;
+    gctPHYS_ADDR physical = gcvNULL;
+    gctPOINTER logical = gcvNULL;
+    gctSIZE_T bytes = 0;
+    gctBOOL powerMutexAcquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%x Interface=0x%x ", Kernel, Interface);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Interface != gcvNULL);
+
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+    /* Dispatch on command. */
+    switch (Interface->command)
+    {
+    case gcvHAL_QUERY_CHIP_IDENTITY:
+        /* Query chip identity. */
+        gcmkERR_BREAK(gckVGHARDWARE_QueryChipIdentity(
+            Kernel->vg->hardware,
+            &kernelInterface->u.QueryChipIdentity.chipModel,
+            &kernelInterface->u.QueryChipIdentity.chipRevision,
+            &kernelInterface->u.QueryChipIdentity.productID,
+            &kernelInterface->u.QueryChipIdentity.ecoID,
+            &kernelInterface->u.QueryChipIdentity.customerID,
+            &kernelInterface->u.QueryChipIdentity.chipFeatures,
+            &kernelInterface->u.QueryChipIdentity.chipMinorFeatures,
+            &kernelInterface->u.QueryChipIdentity.chipMinorFeatures2
+            ));
+        break;
+
+    case gcvHAL_QUERY_COMMAND_BUFFER:
+        /* Query command buffer information. */
+        gcmkERR_BREAK(gckKERNEL_QueryCommandBuffer(
+            Kernel,
+            &kernelInterface->u.QueryCommandBuffer.information
+            ));
+        break;
+
+    case gcvHAL_ALLOCATE_NON_PAGED_MEMORY:
+        bytes = (gctSIZE_T) kernelInterface->u.AllocateNonPagedMemory.bytes;
+        /* Allocate non-paged memory. */
+        gcmkERR_BREAK(gckOS_AllocateNonPagedMemory(
+            Kernel->os,
+            gcvTRUE,
+            gcvALLOC_FLAG_CONTIGUOUS,
+            &bytes,
+            &physical,
+            &logical
+            ));
+
+        kernelInterface->u.AllocateNonPagedMemory.bytes    = bytes;
+        kernelInterface->u.AllocateNonPagedMemory.logical  = gcmPTR_TO_UINT64(logical);
+        kernelInterface->u.AllocateNonPagedMemory.physical = gcmPTR_TO_NAME(physical);
+        break;
+
+    case gcvHAL_FREE_NON_PAGED_MEMORY:
+        physical = gcmNAME_TO_PTR(kernelInterface->u.FreeNonPagedMemory.physical);
+
+        /* Unmap user logical out of physical memory first. */
+        gcmkERR_BREAK(gckOS_UnmapUserLogical(
+            Kernel->os,
+            physical,
+            (gctSIZE_T) kernelInterface->u.FreeNonPagedMemory.bytes,
+            gcmUINT64_TO_PTR(kernelInterface->u.FreeNonPagedMemory.logical)));
+
+
+        /* Free non-paged memory. */
+        gcmkERR_BREAK(gckOS_FreeNonPagedMemory(
+            Kernel->os,
+            (gctSIZE_T) kernelInterface->u.FreeNonPagedMemory.bytes,
+            physical,
+            gcmUINT64_TO_PTR(kernelInterface->u.FreeNonPagedMemory.logical)
+            ));
+
+        gcmRELEASE_NAME(kernelInterface->u.FreeNonPagedMemory.physical);
+        break;
+
+    case gcvHAL_ALLOCATE_CONTIGUOUS_MEMORY:
+        bytes = (gctSIZE_T) kernelInterface->u.AllocateContiguousMemory.bytes;
+        /* Allocate contiguous memory. */
+        gcmkERR_BREAK(gckOS_AllocateContiguous(
+            Kernel->os,
+            gcvTRUE,
+            &bytes,
+            &physical,
+            &logical
+            ));
+
+         kernelInterface->u.AllocateContiguousMemory.bytes    = bytes;
+         kernelInterface->u.AllocateContiguousMemory.logical  = gcmPTR_TO_UINT64(logical);
+         kernelInterface->u.AllocateContiguousMemory.physical = gcmPTR_TO_NAME(physical);
+         break;
+
+    case gcvHAL_FREE_CONTIGUOUS_MEMORY:
+        physical = gcmNAME_TO_PTR(kernelInterface->u.FreeContiguousMemory.physical);
+        /* Unmap user logical out of physical memory first. */
+        gcmkERR_BREAK(gckOS_UnmapUserLogical(
+            Kernel->os,
+            physical,
+            (gctSIZE_T) kernelInterface->u.FreeContiguousMemory.bytes,
+            gcmUINT64_TO_PTR(kernelInterface->u.FreeContiguousMemory.logical)
+            ));
+
+        /* Free contiguous memory. */
+        gcmkERR_BREAK(gckOS_FreeContiguous(
+            Kernel->os,
+            physical,
+            gcmUINT64_TO_PTR(kernelInterface->u.FreeContiguousMemory.logical),
+            (gctSIZE_T) kernelInterface->u.FreeContiguousMemory.bytes
+            ));
+
+        gcmRELEASE_NAME(kernelInterface->u.FreeContiguousMemory.physical);
+        break;
+
+    case gcvHAL_ALLOCATE_VIDEO_MEMORY:
+        gcmkERR_BREAK(gcvSTATUS_NOT_SUPPORTED);
+        break;
+
+    case gcvHAL_MAP_MEMORY:
+        /* Map memory. */
+        gcmkERR_BREAK(gckKERNEL_MapMemory(
+            Kernel,
+            gcmINT2PTR(kernelInterface->u.MapMemory.physical),
+            (gctSIZE_T) kernelInterface->u.MapMemory.bytes,
+            &logical
+            ));
+        kernelInterface->u.MapMemory.logical = gcmPTR_TO_UINT64(logical);
+        break;
+
+    case gcvHAL_UNMAP_MEMORY:
+        /* Unmap memory. */
+        gcmkERR_BREAK(gckKERNEL_UnmapMemory(
+            Kernel,
+            gcmINT2PTR(kernelInterface->u.MapMemory.physical),
+            (gctSIZE_T) kernelInterface->u.MapMemory.bytes,
+            gcmUINT64_TO_PTR(kernelInterface->u.MapMemory.logical),
+            processID
+            ));
+        break;
+
+    case gcvHAL_MAP_USER_MEMORY:
+
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+
+        break;
+
+    case gcvHAL_UNMAP_USER_MEMORY:
+
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+
+        break;
+
+    case gcvHAL_LOCK_VIDEO_MEMORY:
+        gcmkONERROR(gckKERNEL_LockVideoMemory(Kernel, gcvCORE_VG, processID, FromUser, Interface));
+        break;
+
+    case gcvHAL_BOTTOM_HALF_UNLOCK_VIDEO_MEMORY:
+        gcmkERR_BREAK(gckKERNEL_BottomHalfUnlockVideoMemory(Kernel, processID,
+                                                            kernelInterface->u.BottomHalfUnlockVideoMemory.node));
+        break;
+
+    case gcvHAL_USER_SIGNAL:
+#if !USE_NEW_LINUX_SIGNAL
+        /* Dispatch depends on the user signal subcommands. */
+        switch(Interface->u.UserSignal.command)
+        {
+        case gcvUSER_SIGNAL_CREATE:
+            /* Create a signal used in the user space. */
+            gcmkERR_BREAK(
+                gckOS_CreateUserSignal(Kernel->os,
+                                       Interface->u.UserSignal.manualReset,
+                                       &Interface->u.UserSignal.id));
+
+            gcmkVERIFY_OK(
+                gckKERNEL_AddProcessDB(Kernel,
+                                       processID, gcvDB_SIGNAL,
+                                       gcmINT2PTR(Interface->u.UserSignal.id),
+                                       gcvNULL,
+                                       0));
+            break;
+
+        case gcvUSER_SIGNAL_DESTROY:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Kernel,
+                processID, gcvDB_SIGNAL,
+                gcmINT2PTR(Interface->u.UserSignal.id)));
+
+            /* Destroy the signal. */
+            gcmkERR_BREAK(
+                gckOS_DestroyUserSignal(Kernel->os,
+                                        Interface->u.UserSignal.id));
+
+            break;
+
+        case gcvUSER_SIGNAL_SIGNAL:
+            /* Signal the signal. */
+            gcmkERR_BREAK(
+                gckOS_SignalUserSignal(Kernel->os,
+                                       Interface->u.UserSignal.id,
+                                       Interface->u.UserSignal.state));
+            break;
+
+        case gcvUSER_SIGNAL_WAIT:
+            /* Wait on the signal. */
+            status = gckOS_WaitUserSignal(Kernel->os,
+                                          Interface->u.UserSignal.id,
+                                          Interface->u.UserSignal.wait);
+            break;
+
+        default:
+            /* Invalid user signal command. */
+            gcmkERR_BREAK(gcvSTATUS_INVALID_ARGUMENT);
+        }
+#endif
+        break;
+
+    case gcvHAL_COMMIT:
+        /* Commit a command and context buffer. */
+        gcmkERR_BREAK(gckVGCOMMAND_Commit(
+            Kernel->vg->command,
+            gcmUINT64_TO_PTR(kernelInterface->u.VGCommit.context),
+            gcmUINT64_TO_PTR(kernelInterface->u.VGCommit.queue),
+            kernelInterface->u.VGCommit.entryCount,
+            gcmUINT64_TO_PTR(kernelInterface->u.VGCommit.taskTable)
+            ));
+        break;
+
+    case gcvHAL_GET_BASE_ADDRESS:
+       /* Get base address. */
+        gcmkONERROR(
+            gckOS_GetBaseAddress(Kernel->os,
+                                 &Interface->u.GetBaseAddress.baseAddress));
+        break;
+
+    case gcvHAL_EVENT_COMMIT:
+        gcmkERR_BREAK(gcvSTATUS_NOT_SUPPORTED);
+        break;
+    case gcvHAL_READ_REGISTER:
+#if gcdREGISTER_ACCESS_FROM_USER
+        {
+            gceCHIPPOWERSTATE power;
+
+            gcmkONERROR(gckOS_AcquireMutex(Kernel->os, Kernel->vg->hardware->powerMutex, gcvINFINITE));
+            powerMutexAcquired = gcvTRUE;
+            gcmkONERROR(gckVGHARDWARE_QueryPowerManagementState(Kernel->vg->hardware,
+                &power));
+            if (power == gcvPOWER_ON)
+            {
+                /* Read a register. */
+                gcmkONERROR(gckOS_ReadRegisterEx(
+                    Kernel->os,
+                    Kernel->core,
+                    Interface->u.ReadRegisterData.address,
+                    &Interface->u.ReadRegisterData.data));
+            }
+            else
+            {
+                /* Chip is in power-state. */
+                Interface->u.ReadRegisterData.data = 0;
+                status = gcvSTATUS_CHIP_NOT_READY;
+            }
+            gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->vg->hardware->powerMutex));
+            powerMutexAcquired = gcvFALSE;
+        }
+#else
+        /* No access from user land to read registers. */
+        Interface->u.ReadRegisterData.data = 0;
+        status = gcvSTATUS_NOT_SUPPORTED;
+#endif
+        break;
+
+    case gcvHAL_WRITE_REGISTER:
+#if gcdREGISTER_ACCESS_FROM_USER
+        {
+            gceCHIPPOWERSTATE power;
+
+            gcmkONERROR(gckOS_AcquireMutex(Kernel->os, Kernel->vg->hardware->powerMutex, gcvINFINITE));
+            powerMutexAcquired = gcvTRUE;
+            gcmkONERROR(gckVGHARDWARE_QueryPowerManagementState(Kernel->vg->hardware,
+                &power));
+            if (power == gcvPOWER_ON)
+            {
+                /* Write a register. */
+                gcmkONERROR(
+                    gckOS_WriteRegisterEx(Kernel->os,
+                    Kernel->core,
+                    Interface->u.WriteRegisterData.address,
+                    Interface->u.WriteRegisterData.data));
+            }
+            else
+            {
+                /* Chip is in power-state. */
+                Interface->u.WriteRegisterData.data = 0;
+                status = gcvSTATUS_CHIP_NOT_READY;
+            }
+            gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->vg->hardware->powerMutex));
+            powerMutexAcquired = gcvFALSE;
+        }
+#else
+        /* No access from user land to write registers. */
+        status = gcvSTATUS_NOT_SUPPORTED;
+#endif
+        break;
+    default:
+        /* Invalid command, try gckKERNEL_Dispatch */
+        status = gckKERNEL_Dispatch(Kernel, gcvNULL, gcvTRUE, Interface);
+    }
+
+OnError:
+    /* Save status. */
+    kernelInterface->status = status;
+    if (powerMutexAcquired == gcvTRUE)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->vg->hardware->powerMutex));
+    }
+
+    gcmkFOOTER();
+
+    /* Return the status. */
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_QueryCommandBuffer
+**
+**  Query command buffer attributes.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckVGHARDWARE object.
+**
+**  OUTPUT:
+**
+**      gcsCOMMAND_BUFFER_INFO_PTR Information
+**          Pointer to the information structure to receive buffer attributes.
+*/
+gceSTATUS
+gckKERNEL_QueryCommandBuffer(
+    IN gckKERNEL Kernel,
+    OUT gcsCOMMAND_BUFFER_INFO_PTR Information
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Kernel=0x%x *Pool=0x%x",
+                   Kernel, Information);
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Get the information. */
+    status = gckVGCOMMAND_QueryCommandBuffer(Kernel->vg->command, Information);
+
+    gcmkFOOTER();
+    /* Return status. */
+    return status;
+}
+
+#endif /* gcdENABLE_VG */

drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_vg.h

@@ -0,0 +1,119 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_vg_h_
+#define __gc_hal_kernel_vg_h_
+
+#include "gc_hal.h"
+#include "gc_hal_driver.h"
+#include "gc_hal_kernel_hardware.h"
+
+/******************************************************************************\
+********************************** Structures **********************************
+\******************************************************************************/
+
+/* gckKERNEL object. */
+struct _gckVGKERNEL
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Pointer to gckHARDWARE object. */
+    gckVGHARDWARE                   hardware;
+
+    /* Pointer to gckINTERRUPT object. */
+    gckVGINTERRUPT              interrupt;
+
+    /* Pointer to gckCOMMAND object. */
+    gckVGCOMMAND                    command;
+
+    /* Pointer to context. */
+    gctPOINTER                  context;
+
+    /* Pointer to gckMMU object. */
+    gckVGMMU                        mmu;
+
+    gckKERNEL                   kernel;
+};
+
+/* gckMMU object. */
+struct _gckVGMMU
+{
+    /* The object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Pointer to gckHARDWARE object. */
+    gckVGHARDWARE                   hardware;
+
+    /* The page table mutex. */
+    gctPOINTER                  mutex;
+
+    /* Page table information. */
+    gctSIZE_T                   pageTableSize;
+    gctPHYS_ADDR                pageTablePhysical;
+    gctPOINTER                  pageTableLogical;
+
+    /* Allocation index. */
+    gctUINT32                   entryCount;
+    gctUINT32                   entry;
+};
+
+#endif /* __gc_hal_kernel_h_ */

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_driver_vg.h

@@ -0,0 +1,302 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_driver_vg_h_
+#define __gc_hal_driver_vg_h_
+
+
+
+#include "gc_hal_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+******************************* I/O Control Codes ******************************
+\******************************************************************************/
+
+#define gcvHAL_CLASS            "galcore"
+#define IOCTL_GCHAL_INTERFACE   30000
+
+/******************************************************************************\
+********************* Command buffer information structure. ********************
+\******************************************************************************/
+
+typedef struct _gcsCOMMAND_BUFFER_INFO * gcsCOMMAND_BUFFER_INFO_PTR;
+typedef struct _gcsCOMMAND_BUFFER_INFO
+{
+    /* FE command buffer interrupt ID. */
+    gctINT32                    feBufferInt;
+
+    /* TS overflow interrupt ID. */
+    gctINT32                    tsOverflowInt;
+
+    /* Alignment and mask for the buffer address. */
+    gctUINT                     addressMask;
+    gctUINT32                    addressAlignment;
+
+    /* Alignment for each command. */
+    gctUINT32                   commandAlignment;
+
+    /* Number of bytes required by the STATE command. */
+    gctUINT32                   stateCommandSize;
+
+    /* Number of bytes required by the RESTART command. */
+    gctUINT32                   restartCommandSize;
+
+    /* Number of bytes required by the FETCH command. */
+    gctUINT32                   fetchCommandSize;
+
+    /* Number of bytes required by the CALL command. */
+    gctUINT32                   callCommandSize;
+
+    /* Number of bytes required by the RETURN command. */
+    gctUINT32                   returnCommandSize;
+
+    /* Number of bytes required by the EVENT command. */
+    gctUINT32                   eventCommandSize;
+
+    /* Number of bytes required by the END command. */
+    gctUINT32                   endCommandSize;
+
+    /* Number of bytes reserved at the tail of a static command buffer. */
+    gctUINT32                   staticTailSize;
+
+    /* Number of bytes reserved at the tail of a dynamic command buffer. */
+    gctUINT32                   dynamicTailSize;
+}
+gcsCOMMAND_BUFFER_INFO;
+
+/******************************************************************************\
+******************************** Task Structures *******************************
+\******************************************************************************/
+
+typedef enum _gceTASK
+{
+    gcvTASK_LINK,
+    gcvTASK_CLUSTER,
+    gcvTASK_INCREMENT,
+    gcvTASK_DECREMENT,
+    gcvTASK_SIGNAL,
+    gcvTASK_LOCKDOWN,
+    gcvTASK_UNLOCK_VIDEO_MEMORY,
+    gcvTASK_FREE_VIDEO_MEMORY,
+    gcvTASK_FREE_CONTIGUOUS_MEMORY,
+    gcvTASK_UNMAP_USER_MEMORY
+}
+gceTASK;
+
+typedef struct _gcsTASK_HEADER * gcsTASK_HEADER_PTR;
+typedef struct _gcsTASK_HEADER
+{
+    /* Task ID. */
+    IN gceTASK                  id;
+}
+gcsTASK_HEADER;
+
+typedef struct _gcsTASK_LINK * gcsTASK_LINK_PTR;
+typedef struct _gcsTASK_LINK
+{
+    /* Task ID (gcvTASK_LINK). */
+    IN gceTASK                  id;
+
+    /* Pointer to the next task container. */
+    IN gctPOINTER               cotainer;
+
+    /* Pointer to the next task from the next task container. */
+    IN gcsTASK_HEADER_PTR       task;
+}
+gcsTASK_LINK;
+
+typedef struct _gcsTASK_CLUSTER * gcsTASK_CLUSTER_PTR;
+typedef struct _gcsTASK_CLUSTER
+{
+    /* Task ID (gcvTASK_CLUSTER). */
+    IN gceTASK                  id;
+
+    /* Number of tasks in the cluster. */
+    IN gctUINT                  taskCount;
+}
+gcsTASK_CLUSTER;
+
+typedef struct _gcsTASK_INCREMENT * gcsTASK_INCREMENT_PTR;
+typedef struct _gcsTASK_INCREMENT
+{
+    /* Task ID (gcvTASK_INCREMENT). */
+    IN gceTASK                  id;
+
+    /* Address of the variable to increment. */
+    IN gctUINT32                address;
+}
+gcsTASK_INCREMENT;
+
+typedef struct _gcsTASK_DECREMENT * gcsTASK_DECREMENT_PTR;
+typedef struct _gcsTASK_DECREMENT
+{
+    /* Task ID (gcvTASK_DECREMENT). */
+    IN gceTASK                  id;
+
+    /* Address of the variable to decrement. */
+    IN gctUINT32                address;
+}
+gcsTASK_DECREMENT;
+
+typedef struct _gcsTASK_SIGNAL * gcsTASK_SIGNAL_PTR;
+typedef struct _gcsTASK_SIGNAL
+{
+    /* Task ID (gcvTASK_SIGNAL). */
+    IN gceTASK                  id;
+
+    /* Process owning the signal. */
+    IN gctHANDLE                process;
+
+    /* Signal handle to signal. */
+    IN gctSIGNAL                signal;
+
+#if defined(__QNXNTO__)
+    IN gctINT32                 coid;
+    IN gctINT32                 rcvid;
+#endif
+}
+gcsTASK_SIGNAL;
+
+typedef struct _gcsTASK_LOCKDOWN * gcsTASK_LOCKDOWN_PTR;
+typedef struct _gcsTASK_LOCKDOWN
+{
+    /* Task ID (gcvTASK_LOCKDOWN). */
+    IN gceTASK                  id;
+
+    /* Address of the user space counter. */
+    IN gctUINT32                userCounter;
+
+    /* Address of the kernel space counter. */
+    IN gctUINT32                kernelCounter;
+
+    /* Process owning the signal. */
+    IN gctHANDLE                process;
+
+    /* Signal handle to signal. */
+    IN gctSIGNAL                signal;
+}
+gcsTASK_LOCKDOWN;
+
+typedef struct _gcsTASK_UNLOCK_VIDEO_MEMORY * gcsTASK_UNLOCK_VIDEO_MEMORY_PTR;
+typedef struct _gcsTASK_UNLOCK_VIDEO_MEMORY
+{
+    /* Task ID (gcvTASK_UNLOCK_VIDEO_MEMORY). */
+    IN gceTASK                  id;
+
+    /* Allocated video memory. */
+    IN gctUINT64                node;
+}
+gcsTASK_UNLOCK_VIDEO_MEMORY;
+
+typedef struct _gcsTASK_FREE_VIDEO_MEMORY * gcsTASK_FREE_VIDEO_MEMORY_PTR;
+typedef struct _gcsTASK_FREE_VIDEO_MEMORY
+{
+    /* Task ID (gcvTASK_FREE_VIDEO_MEMORY). */
+    IN gceTASK                  id;
+
+    /* Allocated video memory. */
+    IN gctUINT32                node;
+}
+gcsTASK_FREE_VIDEO_MEMORY;
+
+typedef struct _gcsTASK_FREE_CONTIGUOUS_MEMORY * gcsTASK_FREE_CONTIGUOUS_MEMORY_PTR;
+typedef struct _gcsTASK_FREE_CONTIGUOUS_MEMORY
+{
+    /* Task ID (gcvTASK_FREE_CONTIGUOUS_MEMORY). */
+    IN gceTASK                  id;
+
+    /* Number of bytes allocated. */
+    IN gctSIZE_T                bytes;
+
+    /* Physical address of allocation. */
+    IN gctPHYS_ADDR             physical;
+
+    /* Logical address of allocation. */
+    IN gctPOINTER               logical;
+}
+gcsTASK_FREE_CONTIGUOUS_MEMORY;
+
+typedef struct _gcsTASK_UNMAP_USER_MEMORY * gcsTASK_UNMAP_USER_MEMORY_PTR;
+typedef struct _gcsTASK_UNMAP_USER_MEMORY
+{
+    /* Task ID (gcvTASK_UNMAP_USER_MEMORY). */
+    IN gceTASK                  id;
+
+    /* Base address of user memory to unmap. */
+    IN gctPOINTER               memory;
+
+    /* Size of user memory in bytes to unmap. */
+    IN gctSIZE_T                size;
+
+    /* Info record returned by gcvHAL_MAP_USER_MEMORY. */
+    IN gctPOINTER               info;
+
+    /* Physical address of mapped memory as returned by
+       gcvHAL_MAP_USER_MEMORY. */
+    IN gctUINT32                address;
+}
+gcsTASK_UNMAP_USER_MEMORY;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_driver_h_ */
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_drm.h

@@ -0,0 +1,200 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __VIVNATE_DRM_H__
+#define __VIVNATE_DRM_H__
+
+#if !defined(__KERNEL__)
+#include <drm.h>
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/* creation flag bits. */
+#define DRM_VIV_GEM_CONTIGUOUS      (1u << 0)
+#define DRM_VIV_GEM_CACHED          (1u << 1)
+#define DRM_VIV_GEM_SECURE          (1u << 2)
+#define DRM_VIV_GEM_CMA_LIMIT       (1u << 3)
+#define DRM_VIV_GEM_VIRTUAL_POOL    (1u << 4)
+
+struct drm_viv_gem_create {
+    __u64 size;
+    __u32 flags;
+    __u32 handle;
+};
+
+struct drm_viv_gem_lock {
+    __u32 handle;
+    __u32 cacheable;
+    __u64 logical;
+};
+
+struct drm_viv_gem_unlock {
+    __u32 handle;
+};
+
+
+#define DRM_VIV_GEM_CLEAN_CACHE         0x01
+#define DRM_VIV_GEM_INVALIDATE_CACHE    0x02
+#define DRM_VIV_GEM_FLUSH_CACHE         0x03
+#define DRM_VIV_GEM_MEMORY_BARRIER      0x04
+
+struct drm_viv_gem_cache {
+    __u32 handle;
+    __u32 op;
+    __u64 logical;
+    __u64 bytes;
+};
+
+
+#define DRM_VIV_GEM_PARAM_POOL      0x00
+#define DRM_VIV_GEM_PARAM_SIZE      0x01
+
+struct drm_viv_gem_query {
+    __u32 handle;
+    __u32 param;
+    __u64 value;
+};
+
+
+struct drm_viv_gem_timestamp {
+    __u32 handle;
+    /* inc count, 0 for query current. */
+    __u32 inc;
+    /* output inc'ed timestamp. */
+    __u64 timestamp;
+};
+
+
+/* basic tiling mode. */
+#define DRM_VIV_GEM_TILING_LINEAR       0x01
+#define DRM_VIV_GEM_TILING_TILED        0x02
+#define DRM_VIV_GEM_TILING_SUPERTILED   0x04
+#define DRM_VIV_GEM_TILING_MINORTILED   0x08
+
+/* tiling mode modifiers. */
+#define DRM_VIV_GEM_TILING_SPLIT    0x10
+#define DRM_VIV_GEM_TILING_X_MAJOR  0x20
+#define DRM_VIV_GEM_TILING_Y_MAJOR  0x40
+#define DRM_VIV_GEM_TILING_SWAP     0x80
+
+/* ts mode. */
+#define DRM_VIV_GEM_TS_NONE         0x00
+#define DRM_VIV_GEM_TS_DISABLED     0x01
+#define DRM_VIV_GEM_TS_NORMAL       0x02
+#define DRM_VIV_GEM_TS_COMPRESSED   0x03
+
+struct drm_viv_gem_set_tiling {
+    __u32 handle;
+    __u32 tiling_mode;
+
+    __u32 ts_mode;
+    __u64 clear_value;
+};
+
+struct drm_viv_gem_get_tiling {
+    __u32 handle;
+    __u32 tiling_mode;
+
+    __u32 ts_mode;
+    __u64 clear_value;
+};
+
+
+struct drm_viv_gem_attach_aux {
+    __u32 handle;
+    __u32 ts_handle;
+};
+
+
+struct drm_viv_gem_ref_node {
+    __u32 handle;
+
+    /* output. */
+    __u32 node;
+    __u32 ts_node;
+};
+
+
+#define DRM_VIV_GEM_CREATE          0x00
+#define DRM_VIV_GEM_LOCK            0x01
+#define DRM_VIV_GEM_UNLOCK          0x02
+#define DRM_VIV_GEM_CACHE           0x03
+#define DRM_VIV_GEM_QUERY           0x04
+#define DRM_VIV_GEM_TIMESTAMP       0x05
+#define DRM_VIV_GEM_SET_TILING      0x06
+#define DRM_VIV_GEM_GET_TILING      0x07
+#define DRM_VIV_GEM_ATTACH_AUX      0x08
+#define DRM_VIV_GEM_REF_NODE        0x09
+#define DRM_VIV_NUM_IOCTLS          0x0A
+
+#define DRM_IOCTL_VIV_GEM_CREATE        DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_CREATE,     struct drm_viv_gem_create)
+#define DRM_IOCTL_VIV_GEM_LOCK          DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_LOCK,       struct drm_viv_gem_lock)
+#define DRM_IOCTL_VIV_GEM_UNLOCK        DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_UNLOCK,     struct drm_viv_gem_unlock)
+#define DRM_IOCTL_VIV_GEM_CACHE         DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_CACHE,      struct drm_viv_gem_cache)
+#define DRM_IOCTL_VIV_GEM_QUERY         DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_QUERY,      struct drm_viv_gem_query)
+#define DRM_IOCTL_VIV_GEM_TIMESTAMP     DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_TIMESTAMP,  struct drm_viv_gem_timestamp)
+#define DRM_IOCTL_VIV_GEM_SET_TILING    DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_SET_TILING, struct drm_viv_gem_set_tiling)
+#define DRM_IOCTL_VIV_GEM_GET_TILING    DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_GET_TILING, struct drm_viv_gem_get_tiling)
+#define DRM_IOCTL_VIV_GEM_ATTACH_AUX    DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_ATTACH_AUX, struct drm_viv_gem_attach_aux)
+#define DRM_IOCTL_VIV_GEM_REF_NODE      DRM_IOWR(DRM_COMMAND_BASE + DRM_VIV_GEM_REF_NODE,   struct drm_viv_gem_ref_node)
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __VIVNATE_DRM_H__ */

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_dump.h

@@ -0,0 +1,125 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_dump_h_
+#define __gc_hal_dump_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**    FILE LAYOUT:
+**
+**        gcsDUMP_FILE structure
+**
+**        gcsDUMP_DATA frame
+**            gcsDUMP_DATA or gcDUMP_DATA_SIZE records rendingring the frame
+**            gctUINT8 data[length]
+*/
+
+#define gcvDUMP_FILE_SIGNATURE        gcmCC('g','c','D','B')
+
+typedef struct _gcsDUMP_FILE
+{
+    gctUINT32           signature;    /* File signature */
+    gctSIZE_T             length;        /* Length of file */
+    gctUINT32             frames;        /* Number of frames in file */
+}
+gcsDUMP_FILE;
+
+typedef enum _gceDUMP_TAG
+{
+    gcvTAG_SURFACE                  = gcmCC('s','u','r','f'),
+    gcvTAG_FRAME                    = gcmCC('f','r','m',' '),
+    gcvTAG_COMMAND                  = gcmCC('c','m','d',' '),
+    gcvTAG_INDEX                    = gcmCC('i','n','d','x'),
+    gcvTAG_STREAM                   = gcmCC('s','t','r','m'),
+    gcvTAG_TEXTURE                  = gcmCC('t','e','x','t'),
+    gcvTAG_RENDER_TARGET            = gcmCC('r','n','d','r'),
+    gcvTAG_DEPTH                    = gcmCC('z','b','u','f'),
+    gcvTAG_RESOLVE                  = gcmCC('r','s','l','v'),
+    gcvTAG_DELETE                   = gcmCC('d','e','l',' '),
+    gcvTAG_BUFOBJ                   = gcmCC('b','u','f','o'),
+}
+gceDUMP_TAG;
+
+typedef struct _gcsDUMP_SURFACE
+{
+    gceDUMP_TAG            type;        /* Type of record. */
+    gctUINT32             address;    /* Address of the surface. */
+    gctINT16              width;        /* Width of surface. */
+    gctINT16               height;        /* Height of surface. */
+    gceSURF_FORMAT        format;        /* Surface pixel format. */
+    gctSIZE_T            length;        /* Number of bytes inside the surface. */
+}
+gcsDUMP_SURFACE;
+
+typedef struct _gcsDUMP_DATA
+{
+    gceDUMP_TAG             type;        /* Type of record. */
+    gctSIZE_T             length;        /* Number of bytes of data. */
+    gctUINT32             address;    /* Address for the data. */
+}
+gcsDUMP_DATA;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_dump_h_ */
+
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_eglplatform.h

@@ -0,0 +1,589 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_eglplatform_h_
+#define __gc_hal_eglplatform_h_
+
+#include "gc_hal_types.h"
+#include "gc_hal_base.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
+#ifndef WIN32_LEAN_AND_MEAN
+/* #define WIN32_LEAN_AND_MEAN 1 */
+#endif
+#include <windows.h>
+
+typedef HDC                             HALNativeDisplayType;
+typedef HWND                            HALNativeWindowType;
+typedef HBITMAP                         HALNativePixmapType;
+
+typedef struct __BITFIELDINFO
+{
+    BITMAPINFO    bmi;
+    RGBQUAD       bmiColors[2];
+}
+BITFIELDINFO;
+
+#elif /* defined(__APPLE__) || */ defined(__WINSCW__) || defined(__SYMBIAN32__)  /* Symbian */
+
+#elif defined(WL_EGL_PLATFORM) || defined(EGL_API_WL) /* Wayland */
+
+#elif defined(__GBM__) /* GBM */
+
+#elif defined(__ANDROID__) || defined(ANDROID)
+
+#elif defined(MIR_EGL_PLATFORM) /* Mir */
+
+#elif defined(__QNXNTO__)
+
+#elif defined(__unix__) || defined(__APPLE__)
+
+#if defined(EGL_API_DFB)
+
+#elif defined(EGL_API_FB)
+
+#elif defined(EGL_API_NULLWS)
+
+
+#else
+
+/* X11 (tetative). */
+#endif
+
+#else
+#error "Platform not recognized"
+#endif
+
+#if defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
+
+#include "gc_hal_eglplatform_type.h"
+
+/*******************************************************************************
+** Display. ********************************************************************
+*/
+
+gceSTATUS
+gcoOS_GetDisplay(
+    OUT HALNativeDisplayType * Display,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_GetDisplayByIndex(
+    IN gctINT DisplayIndex,
+    OUT HALNativeDisplayType * Display,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_GetDisplayInfo(
+    IN HALNativeDisplayType Display,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctSIZE_T * Physical,
+    OUT gctINT * Stride,
+    OUT gctINT * BitsPerPixel
+    );
+
+
+
+gceSTATUS
+gcoOS_GetDisplayInfoEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctUINT DisplayInfoSize,
+    OUT halDISPLAY_INFO * DisplayInfo
+    );
+
+gceSTATUS
+gcoOS_GetDisplayVirtual(
+    IN HALNativeDisplayType Display,
+    OUT gctINT * Width,
+    OUT gctINT * Height
+    );
+
+gceSTATUS
+gcoOS_GetDisplayBackbuffer(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT gctPOINTER  *  context,
+    OUT gcoSURF     *  surface,
+    OUT gctUINT * Offset,
+    OUT gctINT * X,
+    OUT gctINT * Y
+    );
+
+gceSTATUS
+gcoOS_SetDisplayVirtual(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctUINT Offset,
+    IN gctINT X,
+    IN gctINT Y
+    );
+
+gceSTATUS
+gcoOS_SetDisplayVirtualEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctPOINTER Context,
+    IN gcoSURF Surface,
+    IN gctUINT Offset,
+    IN gctINT X,
+    IN gctINT Y
+    );
+
+gceSTATUS
+gcoOS_CancelDisplayBackbuffer(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctPOINTER Context,
+    IN gcoSURF Surface,
+    IN gctUINT Offset,
+    IN gctINT X,
+    IN gctINT Y
+    );
+
+gceSTATUS
+gcoOS_SetSwapInterval(
+    IN HALNativeDisplayType Display,
+    IN gctINT Interval
+);
+
+gceSTATUS
+gcoOS_SetSwapIntervalEx(
+    IN HALNativeDisplayType Display,
+    IN gctINT Interval,
+    IN gctPOINTER localDisplay);
+
+gceSTATUS
+gcoOS_GetSwapInterval(
+    IN HALNativeDisplayType Display,
+    IN gctINT_PTR Min,
+    IN gctINT_PTR Max
+);
+
+gceSTATUS
+gcoOS_DisplayBufferRegions(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctINT NumRects,
+    IN gctINT_PTR Rects
+    );
+
+gceSTATUS
+gcoOS_DestroyDisplay(
+    IN HALNativeDisplayType Display
+    );
+
+gceSTATUS
+gcoOS_InitLocalDisplayInfo(
+    IN HALNativeDisplayType Display,
+    IN OUT gctPOINTER * localDisplay
+    );
+
+gceSTATUS
+gcoOS_DeinitLocalDisplayInfo(
+    IN HALNativeDisplayType Display,
+    IN OUT gctPOINTER * localDisplay
+    );
+
+gceSTATUS
+gcoOS_GetDisplayInfoEx2(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctPOINTER  localDisplay,
+    IN gctUINT DisplayInfoSize,
+    OUT halDISPLAY_INFO * DisplayInfo
+    );
+
+gceSTATUS
+gcoOS_GetDisplayBackbufferEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctPOINTER  localDisplay,
+    OUT gctPOINTER  *  context,
+    OUT gcoSURF     *  surface,
+    OUT gctUINT * Offset,
+    OUT gctINT * X,
+    OUT gctINT * Y
+    );
+
+gceSTATUS
+gcoOS_IsValidDisplay(
+    IN HALNativeDisplayType Display
+    );
+
+gceSTATUS
+gcoOS_GetNativeVisualId(
+    IN HALNativeDisplayType Display,
+    OUT gctINT* nativeVisualId
+    );
+
+gctBOOL
+gcoOS_SynchronousFlip(
+    IN HALNativeDisplayType Display
+    );
+
+/*******************************************************************************
+** Windows. ********************************************************************
+*/
+
+gceSTATUS
+gcoOS_CreateWindow(
+    IN HALNativeDisplayType Display,
+    IN gctINT X,
+    IN gctINT Y,
+    IN gctINT Width,
+    IN gctINT Height,
+    OUT HALNativeWindowType * Window
+    );
+
+gceSTATUS
+gcoOS_GetWindowInfo(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT gctINT * X,
+    OUT gctINT * Y,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctUINT * Offset
+    );
+
+gceSTATUS
+gcoOS_DestroyWindow(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_DrawImage(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    IN gctPOINTER Bits
+    );
+
+gceSTATUS
+gcoOS_GetImage(
+    IN HALNativeWindowType Window,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    OUT gctINT * BitsPerPixel,
+    OUT gctPOINTER * Bits
+    );
+
+gceSTATUS
+gcoOS_GetWindowInfoEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT gctINT * X,
+    OUT gctINT * Y,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctUINT * Offset,
+    OUT gceSURF_FORMAT * Format,
+    OUT gceSURF_TYPE * Type
+    );
+
+gceSTATUS
+gcoOS_DrawImageEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    IN gctPOINTER Bits,
+    IN gceSURF_FORMAT  Format
+    );
+
+/*
+ * Possiable types:
+ *   gcvSURF_BITMAP
+ *   gcvSURF_RENDER_TARGET
+ *   gcvSURF_RENDER_TARGET_NO_COMPRESSION
+ *   gcvSURF_RENDER_TARGET_NO_TILE_STATUS
+ */
+gceSTATUS
+gcoOS_SetWindowFormat(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gceSURF_TYPE Type,
+    IN gceSURF_FORMAT Format
+    );
+
+
+/*******************************************************************************
+** Pixmaps. ********************************************************************
+*/
+
+gceSTATUS
+gcoOS_CreatePixmap(
+    IN HALNativeDisplayType Display,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    OUT HALNativePixmapType * Pixmap
+    );
+
+gceSTATUS
+gcoOS_GetPixmapInfo(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctINT * Stride,
+    OUT gctPOINTER * Bits
+    );
+
+gceSTATUS
+gcoOS_DrawPixmap(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    IN gctPOINTER Bits
+    );
+
+gceSTATUS
+gcoOS_DestroyPixmap(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap
+    );
+
+gceSTATUS
+gcoOS_GetPixmapInfoEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctINT * Stride,
+    OUT gctPOINTER * Bits,
+    OUT gceSURF_FORMAT * Format
+    );
+
+gceSTATUS
+gcoOS_CopyPixmapBits(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    IN gctUINT DstWidth,
+    IN gctUINT DstHeight,
+    IN gctINT DstStride,
+    IN gceSURF_FORMAT DstFormat,
+    OUT gctPOINTER DstBits
+    );
+
+/*******************************************************************************
+** OS relative. ****************************************************************
+*/
+gceSTATUS
+gcoOS_LoadEGLLibrary(
+    OUT gctHANDLE * Handle
+    );
+
+gceSTATUS
+gcoOS_FreeEGLLibrary(
+    IN gctHANDLE Handle
+    );
+
+gceSTATUS
+gcoOS_ShowWindow(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_HideWindow(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_SetWindowTitle(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctCONST_STRING Title
+    );
+
+gceSTATUS
+gcoOS_CapturePointer(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_GetEvent(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT halEvent * Event
+    );
+
+gceSTATUS
+gcoOS_CreateClientBuffer(
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT Format,
+    IN gctINT Type,
+    OUT gctPOINTER * ClientBuffer
+    );
+
+gceSTATUS
+gcoOS_GetClientBufferInfo(
+    IN gctPOINTER ClientBuffer,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * Stride,
+    OUT gctPOINTER * Bits
+    );
+
+gceSTATUS
+gcoOS_DestroyClientBuffer(
+    IN gctPOINTER ClientBuffer
+    );
+
+gceSTATUS
+gcoOS_DestroyContext(
+    IN gctPOINTER Display,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_CreateContext(
+    IN gctPOINTER LocalDisplay,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_MakeCurrent(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType DrawDrawable,
+    IN HALNativeWindowType ReadDrawable,
+    IN gctPOINTER Context,
+    IN gcoSURF ResolveTarget
+    );
+
+gceSTATUS
+gcoOS_CreateDrawable(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType Drawable
+    );
+
+gceSTATUS
+gcoOS_DestroyDrawable(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType Drawable
+    );
+gceSTATUS
+gcoOS_SwapBuffers(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType Drawable,
+    IN gcoSURF RenderTarget,
+    IN gcoSURF ResolveTarget,
+    IN gctPOINTER ResolveBits,
+    OUT gctUINT *Width,
+    OUT gctUINT *Height
+    );
+
+gceSTATUS
+gcoOS_ResizeWindow(
+    IN gctPOINTER localDisplay,
+    IN HALNativeWindowType Drawable,
+    IN gctUINT Width,
+    IN gctUINT Height
+    );
+
+gceSTATUS
+gcoOS_RSForSwap(
+    IN gctPOINTER localDisplay,
+    IN HALNativeWindowType Drawable,
+    IN gctPOINTER resolve
+    );
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_eglplatform_h_ */
+
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_eglplatform_type.h

@@ -0,0 +1,326 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_eglplatform_type_h_
+#define __gc_hal_eglplatform_type_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*******************************************************************************
+** Events. *********************************************************************
+*/
+
+typedef enum _halEventType
+{
+    /* Keyboard event. */
+    HAL_KEYBOARD,
+
+    /* Mouse move event. */
+    HAL_POINTER,
+
+    /* Mouse button event. */
+    HAL_BUTTON,
+
+    /* Application close event. */
+    HAL_CLOSE,
+
+    /* Application window has been updated. */
+    HAL_WINDOW_UPDATE
+}
+halEventType;
+
+/* Scancodes for keyboard. */
+typedef enum _halKeys
+{
+    HAL_UNKNOWN = -1,
+
+    HAL_BACKSPACE = 0x08,
+    HAL_TAB,
+    HAL_ENTER = 0x0D,
+    HAL_ESCAPE = 0x1B,
+
+    HAL_SPACE = 0x20,
+    HAL_SINGLEQUOTE = 0x27,
+    HAL_PAD_ASTERISK = 0x2A,
+    HAL_COMMA = 0x2C,
+    HAL_HYPHEN,
+    HAL_PERIOD,
+    HAL_SLASH,
+    HAL_0,
+    HAL_1,
+    HAL_2,
+    HAL_3,
+    HAL_4,
+    HAL_5,
+    HAL_6,
+    HAL_7,
+    HAL_8,
+    HAL_9,
+    HAL_SEMICOLON = 0x3B,
+    HAL_EQUAL = 0x3D,
+    HAL_A = 0x41,
+    HAL_B,
+    HAL_C,
+    HAL_D,
+    HAL_E,
+    HAL_F,
+    HAL_G,
+    HAL_H,
+    HAL_I,
+    HAL_J,
+    HAL_K,
+    HAL_L,
+    HAL_M,
+    HAL_N,
+    HAL_O,
+    HAL_P,
+    HAL_Q,
+    HAL_R,
+    HAL_S,
+    HAL_T,
+    HAL_U,
+    HAL_V,
+    HAL_W,
+    HAL_X,
+    HAL_Y,
+    HAL_Z,
+    HAL_LBRACKET,
+    HAL_BACKSLASH,
+    HAL_RBRACKET,
+    HAL_BACKQUOTE = 0x60,
+
+    HAL_F1 = 0x80,
+    HAL_F2,
+    HAL_F3,
+    HAL_F4,
+    HAL_F5,
+    HAL_F6,
+    HAL_F7,
+    HAL_F8,
+    HAL_F9,
+    HAL_F10,
+    HAL_F11,
+    HAL_F12,
+
+    HAL_LCTRL,
+    HAL_RCTRL,
+    HAL_LSHIFT,
+    HAL_RSHIFT,
+    HAL_LALT,
+    HAL_RALT,
+    HAL_CAPSLOCK,
+    HAL_NUMLOCK,
+    HAL_SCROLLLOCK,
+    HAL_PAD_0,
+    HAL_PAD_1,
+    HAL_PAD_2,
+    HAL_PAD_3,
+    HAL_PAD_4,
+    HAL_PAD_5,
+    HAL_PAD_6,
+    HAL_PAD_7,
+    HAL_PAD_8,
+    HAL_PAD_9,
+    HAL_PAD_HYPHEN,
+    HAL_PAD_PLUS,
+    HAL_PAD_SLASH,
+    HAL_PAD_PERIOD,
+    HAL_PAD_ENTER,
+    HAL_SYSRQ,
+    HAL_PRNTSCRN,
+    HAL_BREAK,
+    HAL_UP,
+    HAL_LEFT,
+    HAL_RIGHT,
+    HAL_DOWN,
+    HAL_HOME,
+    HAL_END,
+    HAL_PGUP,
+    HAL_PGDN,
+    HAL_INSERT,
+    HAL_DELETE,
+    HAL_LWINDOW,
+    HAL_RWINDOW,
+    HAL_MENU,
+    HAL_POWER,
+    HAL_SLEEP,
+    HAL_WAKE
+}
+halKeys;
+
+/* Structure that defined keyboard mapping. */
+typedef struct _halKeyMap
+{
+    /* Normal key. */
+    halKeys normal;
+
+    /* Extended key. */
+    halKeys extended;
+}
+halKeyMap;
+
+/* Event structure. */
+typedef struct _halEvent
+{
+    /* Event type. */
+    halEventType type;
+
+    /* Event data union. */
+    union _halEventData
+    {
+        /* Event data for keyboard. */
+        struct _halKeyboard
+        {
+            /* Scancode. */
+            halKeys scancode;
+
+            /* ASCII characte of the key pressed. */
+            char    key;
+
+            /* Flag whether the key was pressed (1) or released (0). */
+            char    pressed;
+        }
+        keyboard;
+
+        /* Event data for pointer. */
+        struct _halPointer
+        {
+            /* Current pointer coordinate. */
+            int     x;
+            int     y;
+        }
+        pointer;
+
+        /* Event data for mouse buttons. */
+        struct _halButton
+        {
+            /* Left button state. */
+            int     left;
+
+            /* Middle button state. */
+            int     middle;
+
+            /* Right button state. */
+            int     right;
+
+            /* Current pointer coordinate. */
+            int     x;
+            int     y;
+        }
+        button;
+    }
+    data;
+}
+halEvent;
+
+/* VFK_DISPLAY_INFO structure defining information returned by
+   vdkGetDisplayInfoEx. */
+typedef struct _halDISPLAY_INFO
+{
+    /* The size of the display in pixels. */
+    int                         width;
+    int                         height;
+
+    /* The stride of the dispay. -1 is returned if the stride is not known
+    ** for the specified display.*/
+    int                         stride;
+
+    /* The color depth of the display in bits per pixel. */
+    int                         bitsPerPixel;
+
+    /* The logical pointer to the display memory buffer. NULL is returned
+    ** if the pointer is not known for the specified display. */
+    void *                      logical;
+
+    /* The physical address of the display memory buffer. ~0 is returned
+    ** if the address is not known for the specified display. */
+    unsigned long               physical;
+
+    /* Can be wraped as surface. */
+    int                         wrapFB;
+
+    /* FB_MULTI_BUFFER support */
+    int                         multiBuffer;
+    int                         backBufferY;
+
+    /* Tiled buffer / tile status support. */
+    int                         tiledBuffer;
+    int                         tileStatus;
+    int                         compression;
+
+    /* The color info of the display. */
+    unsigned int                alphaLength;
+    unsigned int                alphaOffset;
+    unsigned int                redLength;
+    unsigned int                redOffset;
+    unsigned int                greenLength;
+    unsigned int                greenOffset;
+    unsigned int                blueLength;
+    unsigned int                blueOffset;
+
+    /* Display flip support. */
+    int                         flip;
+}
+halDISPLAY_INFO;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_eglplatform_type_h_ */
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_kernel_buffer.h

@@ -0,0 +1,314 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_buffer_h_
+#define __gc_hal_kernel_buffer_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+************************ Command Buffer and Event Objects **********************
+\******************************************************************************/
+
+/* The number of context buffers per user. */
+#define gcdCONTEXT_BUFFER_COUNT 2
+
+#define gcdRENDER_FENCE_LENGTH                      (6 * gcmSIZEOF(gctUINT32))
+#define gcdBLT_FENCE_LENGTH                         (10 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_FLUSHCACHE_LENGTH               (2 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_PAUSE_OQ_LENGTH                 (2 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_PAUSE_XFBWRITTEN_QUERY_LENGTH   (4 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_PAUSE_PRIMGEN_QUERY_LENGTH      (4 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_PAUSE_XFB_LENGTH                (2 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_HW_FENCE_32BIT                  (4 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_HW_FENCE_64BIT                  (6 * gcmSIZEOF(gctUINT32))
+#define gcdRESERVED_PAUSE_PROBE_LENGTH              (TOTAL_PROBE_NUMBER * 2 * gcmSIZEOF(gctUINT32))
+
+#define gcdRESUME_OQ_LENGTH                         (2 * gcmSIZEOF(gctUINT32))
+#define gcdRESUME_XFBWRITTEN_QUERY_LENGTH           (4 * gcmSIZEOF(gctUINT32))
+#define gcdRESUME_PRIMGEN_QUERY_LENGTH              (4 * gcmSIZEOF(gctUINT32))
+#define gcdRESUME_XFB_LENGH                         (2 * gcmSIZEOF(gctUINT32))
+#define gcdRESUME_PROBE_LENGH                       (TOTAL_PROBE_NUMBER * 2 * gcmSIZEOF(gctUINT32))
+
+
+/* State delta record. */
+typedef struct _gcsSTATE_DELTA_RECORD * gcsSTATE_DELTA_RECORD_PTR;
+typedef struct _gcsSTATE_DELTA_RECORD
+{
+    /* State address. */
+    gctUINT                     address;
+
+    /* State mask. */
+    gctUINT32                   mask;
+
+    /* State data. */
+    gctUINT32                   data;
+}
+gcsSTATE_DELTA_RECORD;
+
+/* State delta. */
+typedef struct _gcsSTATE_DELTA
+{
+    /* For debugging: the number of delta in the order of creation. */
+    gctUINT                     num;
+
+    /* Main state delta ID. Every time state delta structure gets reinitialized,
+       main ID is incremented. If main state ID overflows, all map entry IDs get
+       reinitialized to make sure there is no potential erroneous match after
+       the overflow.*/
+    gctUINT                     id;
+
+    /* Vertex element count for the delta buffer. */
+    gctUINT                     elementCount;
+
+    /* Number of states currently stored in the record array. */
+    gctUINT                     recordCount;
+
+    /* Record array; holds all modified states in gcsSTATE_DELTA_RECORD. */
+    gctUINT64                   recordArray;
+    gctUINT                     recordSize;
+
+    /* Map entry ID is used for map entry validation. If map entry ID does not
+       match the main state delta ID, the entry and the corresponding state are
+       considered not in use. */
+    gctUINT64                   mapEntryID;
+    gctUINT                     mapEntryIDSize;
+
+    /* If the map entry ID matches the main state delta ID, index points to
+       the state record in the record array. */
+    gctUINT64                   mapEntryIndex;
+}
+gcsSTATE_DELTA;
+
+#define gcdPATCH_LIST_SIZE      1024
+
+/* Command buffer patch record. */
+typedef struct _gcsPATCH
+{
+    /* Handle of a video memory node. */
+    gctUINT32                   handle;
+
+    /* Flag */
+    gctUINT32                   flag;
+}
+gcsPATCH;
+
+/* List of patches for the command buffer. */
+typedef struct _gcsPATCH_LIST
+{
+    /* Array of patch records. */
+    struct _gcsPATCH            patch[gcdPATCH_LIST_SIZE];
+
+    /* Number of patches in the array. */
+    gctUINT                     count;
+
+    /* Next item in the list. */
+    struct _gcsPATCH_LIST       *next;
+}
+gcsPATCH_LIST;
+
+#define FENCE_NODE_LIST_INIT_COUNT         100
+
+typedef struct _gcsFENCE_APPEND_NODE
+{
+    gcsSURF_NODE_PTR    node;
+    gceFENCE_TYPE       type;
+
+}gcsFENCE_APPEND_NODE;
+
+typedef gcsFENCE_APPEND_NODE   *   gcsFENCE_APPEND_NODE_PTR;
+
+typedef struct _gcsFENCE_LIST    *   gcsFENCE_LIST_PTR;
+
+typedef struct _gcsFENCE_LIST
+{
+    /* Resource that need get fence, but command used this resource not generated */
+    gcsFENCE_APPEND_NODE_PTR        pendingList;
+    gctUINT                         pendingCount;
+    gctUINT                         pendingAllocCount;
+
+    /* Resoure that already generated command in this command buffer but not get fence */
+    gcsFENCE_APPEND_NODE_PTR        onIssueList;
+    gctUINT                         onIssueCount;
+    gctUINT                         onIssueAllocCount;
+}
+gcsFENCE_LIST;
+
+/* Command buffer object. */
+struct _gcoCMDBUF
+{
+    /* The object. */
+    gcsOBJECT                   object;
+
+    /* Commit count. */
+    gctUINT64                   commitCount;
+
+    /* Command buffer entry and exit pipes. */
+    gcePIPE_SELECT              entryPipe;
+    gcePIPE_SELECT              exitPipe;
+
+    /* Feature usage flags. */
+    gctBOOL                     using2D;
+    gctBOOL                     using3D;
+
+    /* Size of reserved tail for each commit. */
+    gctUINT32                   reservedTail;
+
+    /* Physical address of command buffer. Just a name. */
+    gctUINT32                   physical;
+
+    /* Logical address of command buffer. */
+    gctUINT64                   logical;
+
+    /* Number of bytes in command buffer. */
+    gctUINT32                   bytes;
+
+    /* Start offset into the command buffer. */
+    gctUINT32                   startOffset;
+
+    /* Current offset into the command buffer. */
+    gctUINT32                   offset;
+
+    /* Number of free bytes in command buffer. */
+    gctUINT32                   free;
+
+    /* Location of the last reserved area. */
+    gctUINT64                   lastReserve;
+    gctUINT32                   lastOffset;
+
+#if gcdSECURE_USER
+    /* Hint array for the current command buffer. */
+    gctUINT                     hintArraySize;
+    gctUINT64                   hintArray;
+    gctUINT64                   hintArrayTail;
+#endif
+
+    /* Last load state command location and hardware address. */
+    gctUINT64                   lastLoadStatePtr;
+    gctUINT32                   lastLoadStateAddress;
+    gctUINT32                   lastLoadStateCount;
+
+    /* List of patches. */
+    gctUINT64                   patchHead;
+
+    /* Link to next gcoCMDBUF object in one commit. */
+    gctUINT64                   nextCMDBUF;
+
+    /*
+    * Put pointer type member after this line.
+    */
+
+    /* Completion signal. */
+    gctSIGNAL                   signal;
+
+    /* Link to the siblings. */
+    gcoCMDBUF                   prev;
+    gcoCMDBUF                   next;
+
+    /* Mirror command buffer(s). */
+    gcoCMDBUF                   *mirrors;
+    gctUINT32                   mirrorCount;
+};
+
+typedef struct _gcsQUEUE
+{
+    /* Pointer to next gcsQUEUE structure in gcsQUEUE. */
+    gctUINT64                   next;
+
+    /* Event information. */
+    gcsHAL_INTERFACE            iface;
+}
+gcsQUEUE;
+
+/* Event queue. */
+struct _gcoQUEUE
+{
+    /* The object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to current event queue. */
+    gcsQUEUE_PTR                head;
+    gcsQUEUE_PTR                tail;
+
+    /* chunks of the records. */
+    gctPOINTER                  chunks;
+
+    /* List of free records. */
+    gcsQUEUE_PTR                freeList;
+
+    #define gcdIN_QUEUE_RECORD_LIMIT 16
+    /* Number of records currently in queue */
+    gctUINT32                   recordCount;
+
+    /* Max size of pending unlock node in vidmem pool not committed */
+    gctUINT                     maxUnlockBytes;
+
+    gceENGINE                   engine;
+};
+
+struct _gcsTEMPCMDBUF
+{
+    gctUINT32 currentByteSize;
+    gctPOINTER buffer;
+    gctBOOL  inUse;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_buffer_h_ */

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_mem.h

@@ -0,0 +1,566 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+/*
+**    Include file for the local memory management.
+*/
+
+#ifndef __gc_hal_mem_h_
+#define __gc_hal_mem_h_
+#if (gcdENABLE_3D || gcdENABLE_VG)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*******************************************************************************
+**  Usage:
+
+    The macros to declare MemPool type and functions are
+    gcmMEM_DeclareFSMemPool (Type, TypeName, Prefix)
+    gcmMEM_DeclareVSMemPool (Type, TypeName, Prefix)
+    gcmMEM_DeclareAFSMemPool(Type, TypeName, Prefix)
+
+    The data structures for MemPool are
+    typedef struct _gcsMEM_FS_MEM_POOL *    gcsMEM_FS_MEM_POOL;
+    typedef struct _gcsMEM_VS_MEM_POOL *    gcsMEM_VS_MEM_POOL;
+    typedef struct _gcsMEM_AFS_MEM_POOL *    gcsMEM_AFS_MEM_POOL;
+
+    The MemPool constructor and destructor functions are
+    gcfMEM_InitFSMemPool(gcsMEM_FS_MEM_POOL *, gcoOS, gctUINT, gctUINT);
+    gcfMEM_FreeFSMemPool(gcsMEM_FS_MEM_POOL *);
+    gcfMEM_InitVSMemPool(gcsMEM_VS_MEM_POOL *, gcoOS, gctUINT, gctBOOL);
+    gcfMEM_FreeVSMemPool(gcsMEM_VS_MEM_POOL *);
+    gcfMEM_InitAFSMemPool(gcsMEM_AFS_MEM_POOL *, gcoOS, gctUINT);
+    gcfMEM_FreeAFSMemPool(gcsMEM_AFS_MEM_POOL *);
+
+    FS:  for Fixed-Size data structures
+    VS:  for Variable-size data structures
+    AFS: for Array of Fixed-Size data structures
+
+
+    // Example 1: For a fixed-size data structure, struct gcsNode.
+    // It is used locally in a file, so the functions are static without prefix.
+    // At top level, declear allocate and free functions.
+    // The first argument is the data type.
+    // The second armument is the short name used in the fuctions.
+    gcmMEM_DeclareFSMemPool(struct gcsNode, Node, );
+
+    // The previous macro creates two inline functions,
+    // _AllocateNode and _FreeNode.
+
+    // In function or struct
+    gcsMEM_FS_MEM_POOL nodeMemPool;
+
+    // In function,
+    struct gcsNode * node;
+    gceSTATUS status;
+
+    // Before using the memory pool, initialize it.
+    // The second argument is the gcoOS object.
+    // The third argument is the number of data structures to allocate for each chunk.
+    status = gcfMEM_InitFSMemPool(&nodeMemPool, os, 100, sizeof(struct gcsNode));
+    ...
+
+    // Allocate a node.
+    status = _AllocateNode(nodeMemPool, &node);
+    ...
+    // Free a node.
+    _FreeNode(nodeMemPool, node);
+
+    // After using the memory pool, free it.
+    gcfMEM_FreeFSMemPool(&nodeMemPool);
+
+
+    // Example 2: For array of fixed-size data structures, struct gcsNode.
+    // It is used in several files, so the functions are extern with prefix.
+    // At top level, declear allocate and free functions.
+    // The first argument is the data type, and the second one is the short name
+    // used in the fuctions.
+    gcmMEM_DeclareAFSMemPool(struct gcsNode, NodeArray, gcfOpt);
+
+    // The previous macro creates two inline functions,
+    // gcfOpt_AllocateNodeArray and gcfOpt_FreeNodeArray.
+
+    // In function or struct
+    gcsMEM_AFS_MEM_POOL nodeArrayMemPool;
+
+    // In function,
+    struct gcsNode * nodeArray;
+    gceSTATUS status;
+
+    // Before using the array memory pool, initialize it.
+    // The second argument is the gcoOS object, the third is the number of data
+    // structures to allocate for each chunk.
+    status = gcfMEM_InitAFSMemPool(&nodeArrayMemPool, os, sizeof(struct gcsNode));
+    ...
+
+    // Allocate a node array of size 100.
+    status = gcfOpt_AllocateNodeArray(nodeArrayMemPool, &nodeArray, 100);
+    ...
+    // Free a node array.
+    gcfOpt_FreeNodeArray(&nodeArrayMemPool, nodeArray);
+
+    // After using the array memory pool, free it.
+    gcfMEM_FreeAFSMemPool(&nodeArrayMemPool);
+
+*******************************************************************************/
+
+/*******************************************************************************
+**    To switch back to use gcoOS_Allocate and gcoOS_Free, add
+**    #define USE_LOCAL_MEMORY_POOL 0
+**    before including this file.
+*******************************************************************************/
+#ifndef USE_LOCAL_MEMORY_POOL
+/*
+    USE_LOCAL_MEMORY_POOL
+
+    This define enables the local memory management to improve performance.
+*/
+#define USE_LOCAL_MEMORY_POOL        1
+#endif
+
+/*******************************************************************************
+**                            Memory Pool Data Structures
+*******************************************************************************/
+#if USE_LOCAL_MEMORY_POOL
+    typedef struct _gcsMEM_FS_MEM_POOL *    gcsMEM_FS_MEM_POOL;
+    typedef struct _gcsMEM_VS_MEM_POOL *    gcsMEM_VS_MEM_POOL;
+    typedef struct _gcsMEM_AFS_MEM_POOL *    gcsMEM_AFS_MEM_POOL;
+#else
+    typedef gcoOS    gcsMEM_FS_MEM_POOL;
+    typedef gcoOS    gcsMEM_VS_MEM_POOL;
+    typedef gcoOS    gcsMEM_AFS_MEM_POOL;
+#endif
+
+/*******************************************************************************
+**                            Memory Pool Macros
+*******************************************************************************/
+#if USE_LOCAL_MEMORY_POOL
+#define gcmMEM_DeclareFSMemPool(Type, TypeName, Prefix) \
+gceSTATUS \
+Prefix##_Allocate##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type **                    Pointer \
+    ) \
+{ \
+    return(gcfMEM_FSMemPoolGetANode(MemPool, (gctPOINTER *) Pointer)); \
+} \
+ \
+gceSTATUS \
+Prefix##_CAllocate##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type **                    Pointer \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    gcmERR_RETURN(gcfMEM_FSMemPoolGetANode(MemPool, (gctPOINTER *) Pointer)); \
+    gcoOS_ZeroMemory(*(gctPOINTER *) Pointer, gcmSIZEOF(Type)); \
+    gcmFOOTER(); \
+    return gcvSTATUS_OK; \
+} \
+ \
+gceSTATUS \
+Prefix##_Free##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type *                    Pointer \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    status = gcfMEM_FSMemPoolFreeANode(MemPool, (gctPOINTER) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+} \
+ \
+gceSTATUS \
+Prefix##_Free##TypeName##List(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type *                    FirstPointer, \
+    Type *                    LastPointer \
+    ) \
+{ \
+    gceSTATUS               status; \
+    gcmHEADER_ARG("MemPool=0x%x FirstPointer=0x%x LastPointer=0x%x", MemPool, FirstPointer, LastPointer); \
+    status = gcfMEM_FSMemPoolFreeAList(MemPool, (gctPOINTER) FirstPointer, (gctPOINTER) LastPointer); \
+    gcmFOOTER(); \
+    return status; \
+}
+
+#define gcmMEM_DeclareVSMemPool(Type, TypeName, Prefix) \
+gceSTATUS \
+Prefix##_Allocate##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Size \
+    ) \
+{ \
+    gceSTATUS               status;\
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Size=%u", MemPool, Pointer, Size); \
+    status = gcfMEM_VSMemPoolGetANode(MemPool, Size, (gctPOINTER *) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+} \
+ \
+gceSTATUS \
+ Prefix##_CAllocate##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Size \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Size=%u", MemPool, Pointer, Size); \
+    gcmERR_RETURN(gcfMEM_VSMemPoolGetANode(MemPool, Size, (gctPOINTER *) Pointer)); \
+    gcoOS_ZeroMemory(*(gctPOINTER *) Pointer, size); \
+    gcmFOOTER(); \
+    return gcvSTATUS_OK; \
+} \
+ \
+gceSTATUS \
+Prefix##_Free##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type *                    Pointer \
+    ) \
+{ \
+    gceSTATUS               status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pinter); \
+    status = gcfMEM_VSMemPoolFreeANode(MemPool, (gctPOINTER) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+}
+
+#define gcmMEM_DeclareAFSMemPool(Type, TypeName, Prefix) \
+gceSTATUS \
+Prefix##_Allocate##TypeName(\
+    gcsMEM_AFS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Count \
+    ) \
+{ \
+    gceSTATUS               status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Count=%u", MemPool, Pointer, Count); \
+    status = gcfMEM_AFSMemPoolGetANode(MemPool, Count, (gctPOINTER *) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+} \
+ \
+gceSTATUS \
+Prefix##_CAllocate##TypeName(\
+    gcsMEM_AFS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Count \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Count=%u", MemPool, Pointer, Count); \
+    gcmERR_RETURN(gcfMEM_AFSMemPoolGetANode(MemPool, Count, (gctPOINTER *) Pointer)); \
+    gcoOS_ZeroMemory(*(gctPOINTER *) Pointer, Count * gcmSIZEOF(Type)); \
+    gcmFOOTER(); \
+    return gcvSTATUS_OK; \
+} \
+ \
+gceSTATUS \
+Prefix##_Free##TypeName(\
+    gcsMEM_AFS_MEM_POOL        MemPool, \
+    Type *                    Pointer \
+    ) \
+{ \
+    gceSTATUS               status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    status = gcfMEM_AFSMemPoolFreeANode(MemPool, (gctPOINTER) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+}
+
+#else
+
+#define gcmMEM_DeclareFSMemPool(Type, TypeName, Prefix) \
+gceSTATUS \
+Prefix##_Allocate##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type **                    Pointer \
+    ) \
+{ \
+    gceSTATUS               status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    status = gcoOS_Allocate(MemPool, \
+                            gcmSIZEOF(Type), \
+                            (gctPOINTER *) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+} \
+ \
+gceSTATUS \
+Prefix##_CAllocate##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type **                    Pointer \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    gcmERR_RETURN(gcoOS_Allocate(MemPool, \
+                            gcmSIZEOF(Type), \
+                            (gctPOINTER *) Pointer)); \
+    gcoOS_ZeroMemory(*(gctPOINTER *) Pointer, gcmSIZEOF(Type)); \
+    gcmFOOTER(); \
+    return gcvSTATUS_OK; \
+} \
+ \
+gceSTATUS \
+Prefix##_Free##TypeName(\
+    gcsMEM_FS_MEM_POOL        MemPool, \
+    Type *                    Pointer \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    status = gcmOS_SAFE_FREE(MemPool, Pointer); \
+    gcmFOOTER(); \
+    return status; \
+}
+
+#define gcmMEM_DeclareVSMemPool(Type, TypeName, Prefix) \
+gceSTATUS \
+Prefix##_Allocate##TypeName(\
+    gcsMEM_VS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Size \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Size=%u", MemPool, Pointer, Size); \
+    status = gcoOS_Allocate(MemPool, \
+                            Size, \
+                            (gctPOINTER *) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+} \
+ \
+gceSTATUS \
+Prefix##_CAllocate##TypeName(\
+    gcsMEM_VS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Size \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Size=%u", MemPool, Pointer, Size); \
+    gcmERR_RETURN(gcoOS_Allocate(MemPool, \
+                            Size, \
+                            (gctPOINTER *) Pointer)); \
+    gcoOS_ZeroMemory(*(gctPOINTER *) Pointer, Size); \
+    gcmFOOTER(); \
+    return gcvSTATUS_OK; \
+} \
+ \
+gceSTATUS \
+Prefix##_Free##TypeName(\
+    gcsMEM_VS_MEM_POOL        MemPool, \
+    Type *                    Pointer \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    status = gcmOS_SAFE_FREE(MemPool, Pointer); \
+    gcmFOOTER(); \
+    return status; \
+}
+
+#define gcmMEM_DeclareAFSMemPool(Type, TypeName, Prefix) \
+gceSTATUS \
+Prefix##_Allocate##TypeName(\
+    gcsMEM_AFS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Count \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Count=%u", MemPool, Pointer, Count); \
+    status = gcoOS_Allocate(MemPool, \
+                            Count * gcmSIZEOF(Type), \
+                            (gctPOINTER *) Pointer); \
+    gcmFOOTER(); \
+    return status; \
+} \
+ \
+gceSTATUS \
+Prefix##_CAllocate##TypeName(\
+    gcsMEM_AFS_MEM_POOL        MemPool, \
+    Type **                    Pointer, \
+    gctUINT                    Count \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x Count=%u", MemPool, Pointer, Count); \
+    gcmERR_RETURN(gcoOS_Allocate(MemPool, \
+                            Count * gcmSIZEOF(Type), \
+                            (gctPOINTER *) Pointer)); \
+    gcoOS_ZeroMemory(*(gctPOINTER *) Pointer, Count * gcmSIZEOF(Type)); \
+    gcmFOOTER(); \
+    return gcvSTATUS_OK; \
+} \
+ \
+gceSTATUS \
+Prefix##_Free##TypeName(\
+    gcsMEM_AFS_MEM_POOL        MemPool, \
+    Type *                    Pointer \
+    ) \
+{ \
+    gceSTATUS                status; \
+    gcmHEADER_ARG("MemPool=0x%x Pointer=0x%x", MemPool, Pointer); \
+    status = gcmOS_SAFE_FREE(MemPool, Pointer); \
+    gcmFOOTER(); \
+    return status; \
+}
+#endif
+
+/*******************************************************************************
+**                            Memory Pool Data Functions
+*******************************************************************************/
+gceSTATUS
+gcfMEM_InitFSMemPool(
+    IN gcsMEM_FS_MEM_POOL * MemPool,
+    IN gcoOS                OS,
+    IN gctUINT                NodeCount,
+    IN gctUINT                NodeSize
+    );
+
+gceSTATUS
+gcfMEM_FreeFSMemPool(
+    IN gcsMEM_FS_MEM_POOL * MemPool
+    );
+
+gceSTATUS
+gcfMEM_FSMemPoolGetANode(
+    IN gcsMEM_FS_MEM_POOL    MemPool,
+    OUT gctPOINTER *        Node
+    );
+
+gceSTATUS
+gcfMEM_FSMemPoolFreeANode(
+    IN gcsMEM_FS_MEM_POOL    MemPool,
+    IN gctPOINTER            Node
+    );
+
+gceSTATUS
+gcfMEM_FSMemPoolFreeAList(
+    IN gcsMEM_FS_MEM_POOL    MemPool,
+    IN gctPOINTER            FirstNode,
+    IN gctPOINTER            LastNode
+    );
+
+gceSTATUS
+gcfMEM_InitVSMemPool(
+    IN gcsMEM_VS_MEM_POOL * MemPool,
+    IN gcoOS                OS,
+    IN gctUINT                BlockSize,
+    IN gctBOOL                RecycleFreeNode
+    );
+
+gceSTATUS
+gcfMEM_FreeVSMemPool(
+    IN gcsMEM_VS_MEM_POOL * MemPool
+    );
+
+gceSTATUS
+gcfMEM_VSMemPoolGetANode(
+    IN gcsMEM_VS_MEM_POOL    MemPool,
+    IN gctUINT                Size,
+    IN gctUINT                Alignment,
+    OUT gctPOINTER *        Node
+    );
+
+gceSTATUS
+gcfMEM_VSMemPoolFreeANode(
+    IN gcsMEM_VS_MEM_POOL    MemPool,
+    IN gctPOINTER            Node
+    );
+
+gceSTATUS
+gcfMEM_InitAFSMemPool(
+    IN gcsMEM_AFS_MEM_POOL *MemPool,
+    IN gcoOS                OS,
+    IN gctUINT                NodeCount,
+    IN gctUINT                NodeSize
+    );
+
+gceSTATUS
+gcfMEM_FreeAFSMemPool(
+    IN gcsMEM_AFS_MEM_POOL *MemPool
+    );
+
+gceSTATUS
+gcfMEM_AFSMemPoolGetANode(
+    IN gcsMEM_AFS_MEM_POOL    MemPool,
+    IN gctUINT                Count,
+    OUT gctPOINTER *        Node
+    );
+
+gceSTATUS
+gcfMEM_AFSMemPoolFreeANode(
+    IN gcsMEM_AFS_MEM_POOL    MemPool,
+    IN gctPOINTER            Node
+    );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* (gcdENABLE_3D || gcdENABLE_VG) */
+#endif /* __gc_hal_mem_h_ */
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_metadata.h

@@ -0,0 +1,121 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_metadata_h_
+#define __gc_hal_kernel_metadata_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Macro to combine four characters into a Character Code. */
+#define __FOURCC(a, b, c, d) \
+    ((uint32_t)(a) | ((uint32_t)(b) << 8) | ((uint32_t)(c) << 16) | ((uint32_t)(d) << 24))
+
+#define VIV_VIDMEM_METADATA_MAGIC __FOURCC('v', 'i', 'v', 'm')
+
+/* Compressed format now was defined same as dec400d, should be general. */
+typedef enum _VIV_COMPRESS_FMT
+{
+    _VIV_CFMT_ARGB8 = 0,
+    _VIV_CFMT_XRGB8,
+    _VIV_CFMT_AYUV,
+    _VIV_CFMT_UYVY,
+    _VIV_CFMT_YUY2,
+    _VIV_CFMT_YUV_ONLY,
+    _VIV_CFMT_UV_MIX,
+    _VIV_CFMT_ARGB4,
+    _VIV_CFMT_XRGB4,
+    _VIV_CFMT_A1R5G5B5,
+    _VIV_CFMT_X1R5G5B5,
+    _VIV_CFMT_R5G6B5,
+    _VIV_CFMT_Z24S8,
+    _VIV_CFMT_Z24,
+    _VIV_CFMT_Z16,
+    _VIV_CFMT_A2R10G10B10,
+    _VIV_CFMT_BAYER,
+    _VIV_CFMT_SIGNED_BAYER,
+    _VIV_CFMT_VAA16,
+    _VIV_CFMT_S8,
+
+    _VIV_CFMT_MAX,
+} _VIV_COMPRESS_FMT;
+
+/* Metadata for cross-device fd share with additional (ts) info. */
+typedef struct _VIV_VIDMEM_METADATA
+{
+    uint32_t magic;
+
+    int32_t  ts_fd;
+    void *   ts_dma_buf;
+#ifdef gcdANDROID
+    dma_addr_t ts_address;
+#endif
+
+    uint32_t fc_enabled;
+    uint32_t fc_value;
+    uint32_t fc_value_upper;
+
+    uint32_t compressed;
+    uint32_t compress_format;
+} _VIV_VIDMEM_METADATA;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_metadata_h_ */
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_rename.h

@@ -0,0 +1,279 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_rename_h_
+#define __gc_hal_rename_h_
+
+
+#if defined(_HAL2D_APPENDIX)
+
+#define _HAL2D_RENAME_2(api, appendix)  api ## appendix
+#define _HAL2D_RENAME_1(api, appendix)  _HAL2D_RENAME_2(api, appendix)
+#define gcmHAL2D(api)                   _HAL2D_RENAME_1(api, _HAL2D_APPENDIX)
+
+
+#define gckOS_Construct                 gcmHAL2D(gckOS_Construct)
+#define gckOS_Destroy                   gcmHAL2D(gckOS_Destroy)
+#define gckOS_QueryVideoMemory          gcmHAL2D(gckOS_QueryVideoMemory)
+#define gckOS_Allocate                  gcmHAL2D(gckOS_Allocate)
+#define gckOS_Free                      gcmHAL2D(gckOS_Free)
+#define gckOS_AllocateMemory            gcmHAL2D(gckOS_AllocateMemory)
+#define gckOS_FreeMemory                gcmHAL2D(gckOS_FreeMemory)
+#define gckOS_AllocatePagedMemory       gcmHAL2D(gckOS_AllocatePagedMemory)
+#define gckOS_AllocatePagedMemoryEx     gcmHAL2D(gckOS_AllocatePagedMemoryEx)
+#define gckOS_LockPages                 gcmHAL2D(gckOS_LockPages)
+#define gckOS_MapPages                  gcmHAL2D(gckOS_MapPages)
+#define gckOS_UnlockPages               gcmHAL2D(gckOS_UnlockPages)
+#define gckOS_FreePagedMemory           gcmHAL2D(gckOS_FreePagedMemory)
+#define gckOS_AllocateNonPagedMemory    gcmHAL2D(gckOS_AllocateNonPagedMemory)
+#define gckOS_FreeNonPagedMemory        gcmHAL2D(gckOS_FreeNonPagedMemory)
+#define gckOS_AllocateContiguous        gcmHAL2D(gckOS_AllocateContiguous)
+#define gckOS_FreeContiguous            gcmHAL2D(gckOS_FreeContiguous)
+#define gckOS_GetPageSize               gcmHAL2D(gckOS_GetPageSize)
+#define gckOS_GetPhysicalAddress        gcmHAL2D(gckOS_GetPhysicalAddress)
+#define gckOS_UserLogicalToPhysical     gcmHAL2D(gckOS_UserLogicalToPhysical)
+#define gckOS_GetPhysicalAddressProcess gcmHAL2D(gckOS_GetPhysicalAddressProcess)
+#define gckOS_MapPhysical               gcmHAL2D(gckOS_MapPhysical)
+#define gckOS_UnmapPhysical             gcmHAL2D(gckOS_UnmapPhysical)
+#define gckOS_ReadRegister              gcmHAL2D(gckOS_ReadRegister)
+#define gckOS_WriteRegister             gcmHAL2D(gckOS_WriteRegister)
+#define gckOS_WriteMemory               gcmHAL2D(gckOS_WriteMemory)
+#define gckOS_MapMemory                 gcmHAL2D(gckOS_MapMemory)
+#define gckOS_UnmapMemory               gcmHAL2D(gckOS_UnmapMemory)
+#define gckOS_UnmapMemoryEx             gcmHAL2D(gckOS_UnmapMemoryEx)
+#define gckOS_CreateMutex               gcmHAL2D(gckOS_CreateMutex)
+#define gckOS_DeleteMutex               gcmHAL2D(gckOS_DeleteMutex)
+#define gckOS_AcquireMutex              gcmHAL2D(gckOS_AcquireMutex)
+#define gckOS_ReleaseMutex              gcmHAL2D(gckOS_ReleaseMutex)
+#define gckOS_AtomicExchange            gcmHAL2D(gckOS_AtomicExchange)
+#define gckOS_AtomicExchangePtr         gcmHAL2D(gckOS_AtomicExchangePtr)
+#define gckOS_AtomConstruct             gcmHAL2D(gckOS_AtomConstruct)
+#define gckOS_AtomDestroy               gcmHAL2D(gckOS_AtomDestroy)
+#define gckOS_AtomGet                   gcmHAL2D(gckOS_AtomGet)
+#define gckOS_AtomIncrement             gcmHAL2D(gckOS_AtomIncrement)
+#define gckOS_AtomDecrement             gcmHAL2D(gckOS_AtomDecrement)
+#define gckOS_Delay                     gcmHAL2D(gckOS_Delay)
+#define gckOS_GetTime                   gcmHAL2D(gckOS_GetTime)
+#define gckOS_MemoryBarrier             gcmHAL2D(gckOS_MemoryBarrier)
+#define gckOS_MapUserPointer            gcmHAL2D(gckOS_MapUserPointer)
+#define gckOS_UnmapUserPointer          gcmHAL2D(gckOS_UnmapUserPointer)
+#define gckOS_QueryNeedCopy             gcmHAL2D(gckOS_QueryNeedCopy)
+#define gckOS_CopyFromUserData          gcmHAL2D(gckOS_CopyFromUserData)
+#define gckOS_CopyToUserData            gcmHAL2D(gckOS_CopyToUserData)
+#define gckOS_SuspendInterrupt          gcmHAL2D(gckOS_SuspendInterrupt)
+#define gckOS_ResumeInterrupt           gcmHAL2D(gckOS_ResumeInterrupt)
+#define gckOS_GetBaseAddress            gcmHAL2D(gckOS_GetBaseAddress)
+#define gckOS_MemCopy                   gcmHAL2D(gckOS_MemCopy)
+#define gckOS_ZeroMemory                gcmHAL2D(gckOS_ZeroMemory)
+#define gckOS_DeviceControl             gcmHAL2D(gckOS_DeviceControl)
+#define gckOS_GetProcessID              gcmHAL2D(gckOS_GetProcessID)
+#define gckOS_GetThreadID               gcmHAL2D(gckOS_GetThreadID)
+#define gckOS_CreateSignal              gcmHAL2D(gckOS_CreateSignal)
+#define gckOS_DestroySignal             gcmHAL2D(gckOS_DestroySignal)
+#define gckOS_Signal                    gcmHAL2D(gckOS_Signal)
+#define gckOS_WaitSignal                gcmHAL2D(gckOS_WaitSignal)
+#define gckOS_MapSignal                 gcmHAL2D(gckOS_MapSignal)
+#define gckOS_MapUserMemory             gcmHAL2D(gckOS_MapUserMemory)
+#define gckOS_UnmapUserMemory           gcmHAL2D(gckOS_UnmapUserMemory)
+#define gckOS_CreateUserSignal          gcmHAL2D(gckOS_CreateUserSignal)
+#define gckOS_DestroyUserSignal         gcmHAL2D(gckOS_DestroyUserSignal)
+#define gckOS_WaitUserSignal            gcmHAL2D(gckOS_WaitUserSignal)
+#define gckOS_SignalUserSignal          gcmHAL2D(gckOS_SignalUserSignal)
+#define gckOS_UserSignal                gcmHAL2D(gckOS_UserSignal)
+#define gckOS_UserSignal                gcmHAL2D(gckOS_UserSignal)
+#define gckOS_CacheClean                gcmHAL2D(gckOS_CacheClean)
+#define gckOS_CacheFlush                gcmHAL2D(gckOS_CacheFlush)
+#define gckOS_SetDebugLevel             gcmHAL2D(gckOS_SetDebugLevel)
+#define gckOS_SetDebugZone              gcmHAL2D(gckOS_SetDebugZone)
+#define gckOS_SetDebugLevelZone         gcmHAL2D(gckOS_SetDebugLevelZone)
+#define gckOS_SetDebugZones             gcmHAL2D(gckOS_SetDebugZones)
+#define gckOS_SetDebugFile              gcmHAL2D(gckOS_SetDebugFile)
+#define gckOS_Broadcast                 gcmHAL2D(gckOS_Broadcast)
+#define gckOS_SetGPUPower               gcmHAL2D(gckOS_SetGPUPower)
+#define gckOS_CreateSemaphore           gcmHAL2D(gckOS_CreateSemaphore)
+#define gckOS_DestroySemaphore          gcmHAL2D(gckOS_DestroySemaphore)
+#define gckOS_AcquireSemaphore          gcmHAL2D(gckOS_AcquireSemaphore)
+#define gckOS_ReleaseSemaphore          gcmHAL2D(gckOS_ReleaseSemaphore)
+#define gckHEAP_Construct               gcmHAL2D(gckHEAP_Construct)
+#define gckHEAP_Destroy                 gcmHAL2D(gckHEAP_Destroy)
+#define gckHEAP_Allocate                gcmHAL2D(gckHEAP_Allocate)
+#define gckHEAP_Free                    gcmHAL2D(gckHEAP_Free)
+#define gckHEAP_ProfileStart            gcmHAL2D(gckHEAP_ProfileStart)
+#define gckHEAP_ProfileEnd              gcmHAL2D(gckHEAP_ProfileEnd)
+#define gckHEAP_Test                    gcmHAL2D(gckHEAP_Test)
+#define gckVIDMEM_Construct             gcmHAL2D(gckVIDMEM_Construct)
+#define gckVIDMEM_Destroy               gcmHAL2D(gckVIDMEM_Destroy)
+#define gckVIDMEM_Allocate              gcmHAL2D(gckVIDMEM_Allocate)
+#define gckVIDMEM_AllocateLinear        gcmHAL2D(gckVIDMEM_AllocateLinear)
+#define gckVIDMEM_Free                  gcmHAL2D(gckVIDMEM_Free)
+#define gckVIDMEM_Lock                  gcmHAL2D(gckVIDMEM_Lock)
+#define gckVIDMEM_Unlock                gcmHAL2D(gckVIDMEM_Unlock)
+#define gckVIDMEM_ConstructVirtual      gcmHAL2D(gckVIDMEM_ConstructVirtual)
+#define gckVIDMEM_DestroyVirtual        gcmHAL2D(gckVIDMEM_DestroyVirtual)
+#define gckKERNEL_Construct             gcmHAL2D(gckKERNEL_Construct)
+#define gckKERNEL_Destroy               gcmHAL2D(gckKERNEL_Destroy)
+#define gckKERNEL_Dispatch              gcmHAL2D(gckKERNEL_Dispatch)
+#define gckKERNEL_QueryVideoMemory      gcmHAL2D(gckKERNEL_QueryVideoMemory)
+#define gckKERNEL_GetVideoMemoryPool    gcmHAL2D(gckKERNEL_GetVideoMemoryPool)
+#define gckKERNEL_MapVideoMemory        gcmHAL2D(gckKERNEL_MapVideoMemory)
+#define gckKERNEL_UnmapVideoMemory      gcmHAL2D(gckKERNEL_UnmapVideoMemory)
+#define gckKERNEL_MapMemory             gcmHAL2D(gckKERNEL_MapMemory)
+#define gckKERNEL_UnmapMemory           gcmHAL2D(gckKERNEL_UnmapMemory)
+#define gckKERNEL_Notify                gcmHAL2D(gckKERNEL_Notify)
+#define gckKERNEL_QuerySettings         gcmHAL2D(gckKERNEL_QuerySettings)
+#define gckKERNEL_Recovery              gcmHAL2D(gckKERNEL_Recovery)
+#define gckKERNEL_OpenUserData          gcmHAL2D(gckKERNEL_OpenUserData)
+#define gckKERNEL_CloseUserData         gcmHAL2D(gckKERNEL_CloseUserData)
+#define gckHARDWARE_Construct           gcmHAL2D(gckHARDWARE_Construct)
+#define gckHARDWARE_Destroy             gcmHAL2D(gckHARDWARE_Destroy)
+#define gckHARDWARE_QuerySystemMemory   gcmHAL2D(gckHARDWARE_QuerySystemMemory)
+#define gckHARDWARE_BuildVirtualAddress     gcmHAL2D(gckHARDWARE_BuildVirtualAddress)
+#define gckHARDWARE_QueryCommandBuffer      gcmHAL2D(gckHARDWARE_QueryCommandBuffer)
+#define gckHARDWARE_WaitLink            gcmHAL2D(gckHARDWARE_WaitLink)
+#define gckHARDWARE_Execute             gcmHAL2D(gckHARDWARE_Execute)
+#define gckHARDWARE_End                 gcmHAL2D(gckHARDWARE_End)
+#define gckHARDWARE_Nop                 gcmHAL2D(gckHARDWARE_Nop)
+#define gckHARDWARE_PipeSelect          gcmHAL2D(gckHARDWARE_PipeSelect)
+#define gckHARDWARE_Link                gcmHAL2D(gckHARDWARE_Link)
+#define gckHARDWARE_Event               gcmHAL2D(gckHARDWARE_Event)
+#define gckHARDWARE_QueryMemory         gcmHAL2D(gckHARDWARE_QueryMemory)
+#define gckHARDWARE_QueryChipIdentity   gcmHAL2D(gckHARDWARE_QueryChipIdentity)
+#define gckHARDWARE_QueryChipSpecs      gcmHAL2D(gckHARDWARE_QueryChipSpecs)
+#define gckHARDWARE_QueryShaderCaps     gcmHAL2D(gckHARDWARE_QueryShaderCaps)
+#define gckHARDWARE_ConvertFormat       gcmHAL2D(gckHARDWARE_ConvertFormat)
+#define gckHARDWARE_SplitMemory         gcmHAL2D(gckHARDWARE_SplitMemory)
+#define gckHARDWARE_AlignToTile         gcmHAL2D(gckHARDWARE_AlignToTile)
+#define gckHARDWARE_UpdateQueueTail     gcmHAL2D(gckHARDWARE_UpdateQueueTail)
+#define gckHARDWARE_ConvertLogical      gcmHAL2D(gckHARDWARE_ConvertLogical)
+#define gckHARDWARE_Interrupt           gcmHAL2D(gckHARDWARE_Interrupt)
+#define gckHARDWARE_SetMMU              gcmHAL2D(gckHARDWARE_SetMMU)
+#define gckHARDWARE_FlushMMU            gcmHAL2D(gckHARDWARE_FlushMMU)
+#define gckHARDWARE_GetIdle             gcmHAL2D(gckHARDWARE_GetIdle)
+#define gckHARDWARE_Flush               gcmHAL2D(gckHARDWARE_Flush)
+#define gckHARDWARE_SetFastClear        gcmHAL2D(gckHARDWARE_SetFastClear)
+#define gckHARDWARE_ReadInterrupt       gcmHAL2D(gckHARDWARE_ReadInterrupt)
+#define gckHARDWARE_SetPowerManagementState         gcmHAL2D(gckHARDWARE_SetPowerManagementState)
+#define gckHARDWARE_QueryPowerManagementState       gcmHAL2D(gckHARDWARE_QueryPowerManagementState)
+#define gckHARDWARE_ProfileEngine2D     gcmHAL2D(gckHARDWARE_ProfileEngine2D)
+#define gckHARDWARE_InitializeHardware  gcmHAL2D(gckHARDWARE_InitializeHardware)
+#define gckHARDWARE_Reset               gcmHAL2D(gckHARDWARE_Reset)
+#define gckINTERRUPT_Construct          gcmHAL2D(gckINTERRUPT_Construct)
+#define gckINTERRUPT_Destroy            gcmHAL2D(gckINTERRUPT_Destroy)
+#define gckINTERRUPT_SetHandler         gcmHAL2D(gckINTERRUPT_SetHandler)
+#define gckINTERRUPT_Notify             gcmHAL2D(gckINTERRUPT_Notify)
+#define gckEVENT_Construct              gcmHAL2D(gckEVENT_Construct)
+#define gckEVENT_Destroy                gcmHAL2D(gckEVENT_Destroy)
+#define gckEVENT_AddList                gcmHAL2D(gckEVENT_AddList)
+#define gckEVENT_FreeNonPagedMemory     gcmHAL2D(gckEVENT_FreeNonPagedMemory)
+#define gckEVENT_FreeContiguousMemory   gcmHAL2D(gckEVENT_FreeContiguousMemory)
+#define gckEVENT_FreeVideoMemory        gcmHAL2D(gckEVENT_FreeVideoMemory)
+#define gckEVENT_Signal                 gcmHAL2D(gckEVENT_Signal)
+#define gckEVENT_Unlock                 gcmHAL2D(gckEVENT_Unlock)
+#define gckEVENT_Submit                 gcmHAL2D(gckEVENT_Submit)
+#define gckEVENT_Commit                 gcmHAL2D(gckEVENT_Commit)
+#define gckEVENT_Notify                 gcmHAL2D(gckEVENT_Notify)
+#define gckEVENT_Interrupt              gcmHAL2D(gckEVENT_Interrupt)
+#define gckCOMMAND_Construct            gcmHAL2D(gckCOMMAND_Construct)
+#define gckCOMMAND_Destroy              gcmHAL2D(gckCOMMAND_Destroy)
+#define gckCOMMAND_EnterCommit          gcmHAL2D(gckCOMMAND_EnterCommit)
+#define gckCOMMAND_ExitCommit           gcmHAL2D(gckCOMMAND_ExitCommit)
+#define gckCOMMAND_Start                gcmHAL2D(gckCOMMAND_Start)
+#define gckCOMMAND_Stop                 gcmHAL2D(gckCOMMAND_Stop)
+#define gckCOMMAND_Commit               gcmHAL2D(gckCOMMAND_Commit)
+#define gckCOMMAND_Reserve              gcmHAL2D(gckCOMMAND_Reserve)
+#define gckCOMMAND_Execute              gcmHAL2D(gckCOMMAND_Execute)
+#define gckCOMMAND_Stall                gcmHAL2D(gckCOMMAND_Stall)
+#define gckCOMMAND_Attach               gcmHAL2D(gckCOMMAND_Attach)
+#define gckCOMMAND_Detach               gcmHAL2D(gckCOMMAND_Detach)
+#define gckMMU_Construct                gcmHAL2D(gckMMU_Construct)
+#define gckMMU_Destroy                  gcmHAL2D(gckMMU_Destroy)
+#define gckMMU_AllocatePages            gcmHAL2D(gckMMU_AllocatePages)
+#define gckMMU_FreePages                gcmHAL2D(gckMMU_FreePages)
+#define gckMMU_Test                     gcmHAL2D(gckMMU_Test)
+#define gckHARDWARE_QueryProfileRegisters     gcmHAL2D(gckHARDWARE_QueryProfileRegisters)
+
+
+#define FindMdlMap                      gcmHAL2D(FindMdlMap)
+#define OnProcessExit                   gcmHAL2D(OnProcessExit)
+
+#define gckGALDEVICE_Destroy            gcmHAL2D(gckGALDEVICE_Destroy)
+#define gckOS_Print                     gcmHAL2D(gckOS_Print)
+#define gckGALDEVICE_FreeMemory         gcmHAL2D(gckGALDEVICE_FreeMemory)
+#define gckGALDEVICE_AllocateMemory     gcmHAL2D(gckGALDEVICE_AllocateMemory)
+#define gckOS_DebugBreak                gcmHAL2D(gckOS_DebugBreak)
+#define gckGALDEVICE_Release_ISR        gcmHAL2D(gckGALDEVICE_Release_ISR)
+#define gckOS_Verify                    gcmHAL2D(gckOS_Verify)
+#define gckCOMMAND_Release              gcmHAL2D(gckCOMMAND_Release)
+#define gckGALDEVICE_Stop               gcmHAL2D(gckGALDEVICE_Stop)
+#define gckGALDEVICE_Construct          gcmHAL2D(gckGALDEVICE_Construct)
+#define gckOS_DebugFatal                gcmHAL2D(gckOS_DebugFatal)
+#define gckOS_DebugTrace                gcmHAL2D(gckOS_DebugTrace)
+#define gckHARDWARE_GetBaseAddress      gcmHAL2D(gckHARDWARE_GetBaseAddress)
+#define gckGALDEVICE_Setup_ISR          gcmHAL2D(gckGALDEVICE_Setup_ISR)
+#define gckKERNEL_AttachProcess         gcmHAL2D(gckKERNEL_AttachProcess)
+#define gckKERNEL_AttachProcessEx       gcmHAL2D(gckKERNEL_AttachProcessEx)
+#define gckGALDEVICE_Start_Thread       gcmHAL2D(gckGALDEVICE_Start_Thread)
+#define gckHARDWARE_QueryIdle           gcmHAL2D(gckHARDWARE_QueryIdle)
+#define gckGALDEVICE_Start              gcmHAL2D(gckGALDEVICE_Start)
+#define gckOS_GetKernelLogical          gcmHAL2D(gckOS_GetKernelLogical)
+#define gckOS_DebugTraceZone            gcmHAL2D(gckOS_DebugTraceZone)
+#define gckGALDEVICE_Stop_Thread        gcmHAL2D(gckGALDEVICE_Stop_Thread)
+#define gckHARDWARE_NeedBaseAddress     gcmHAL2D(gckHARDWARE_NeedBaseAddress)
+
+#endif
+
+#endif /* __gc_hal_rename_h_ */
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_resource.h

@@ -0,0 +1,69 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_resource_h_
+#define __gc_hal_resource_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_resource_h_ */
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_security_interface.h

@@ -0,0 +1,186 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _GC_HAL_SECURITY_INTERFACE_H_
+#define _GC_HAL_SECURITY_INTERFACE_H_
+/*!
+ @brief Command codes between kernel module and TrustZone
+ @discussion
+ Critical services must be done in TrustZone to avoid sensitive content leak. Most of kernel module is kept in non-Secure os to minimize
+ code in TrustZone.
+ */
+typedef enum kernel_packet_command {
+    KERNEL_START_COMMAND,
+    KERNEL_SUBMIT,
+    KERNEL_MAP_MEMORY, /* */
+    KERNEL_UNMAP_MEMORY,
+    KERNEL_ALLOCATE_SECRUE_MEMORY, /*! Security memory management. */
+    KERNEL_FREE_SECURE_MEMORY,
+    KERNEL_EXECUTE, /* Execute a command buffer. */
+    KERNEL_DUMP_MMU_EXCEPTION,
+    KERNEL_HANDLE_MMU_EXCEPTION,
+    KERNEL_READ_MMU_EXCEPTION,
+} kernel_packet_command_t;
+
+struct kernel_start_command {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT8       gpu;                    /*! Which GPU. */
+    gctUINT32      address;
+    gctUINT32      bytes;
+};
+
+/*!
+ @brief gckCOMMAND Object requests TrustZone to submit command buffer.
+ @discussion
+ Code in trustzone will check content of command buffer after copying command buffer to TrustZone.
+ */
+struct kernel_submit {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT8       gpu;                    /*! Which GPU. */
+    gctUINT8       kernel_command;         /*! Whether it is a kernel command. */
+    gctUINT32      command_buffer_handle;  /*! Handle to command buffer. */
+    gctUINT32      offset;                  /* Offset in command buffer. */
+    gctUINT32 *    command_buffer;         /*! Content of command buffer need to be submit. */
+    gctUINT32      command_buffer_length;  /*! Length of command buffer. */
+};
+
+
+/*!
+ @brief gckVIDMEM Object requests TrustZone to allocate security memory.
+ @discussion
+ Allocate a buffer from security GPU memory.
+ */
+struct kernel_allocate_security_memory {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT32      bytes;                  /*! Requested bytes. */
+    gctUINT32      memory_handle;          /*! Handle of allocated memory. */
+};
+
+/*!
+ @brief gckVIDMEM Object requests TrustZone to allocate security memory.
+ @discussion
+ Free a video memory buffer from security GPU memory.
+ */
+struct kernel_free_security_memory {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT32      memory_handle;          /*! Handle of allocated memory. */
+};
+
+struct kernel_execute {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT8       gpu;                    /*! Which GPU. */
+    gctUINT8       kernel_command;         /*! Whether it is a kernel command. */
+    gctUINT32 *    command_buffer;         /*! Content of command buffer need to be submit. */
+    gctUINT32      command_buffer_length;  /*! Length of command buffer. */
+};
+
+typedef struct kernel_map_scatter_gather {
+    gctUINT32      bytes;
+    gctUINT32      physical;
+    struct kernel_map_scatter_gather *next;
+}
+kernel_map_scatter_gather_t;
+
+struct kernel_map_memory {
+    kernel_packet_command_t command;
+    kernel_map_scatter_gather_t *scatter;
+    gctUINT32       *physicals;
+    gctPHYS_ADDR_T  physical;   /*! Contiguous physical address range. */
+    gctUINT32       pageCount;
+    gctUINT32       gpuAddress;
+};
+
+struct kernel_unmap_memory {
+    gctUINT32       gpuAddress;
+    gctUINT32       pageCount;
+};
+
+struct kernel_read_mmu_exception {
+    gctUINT32       mmuStatus;
+    gctUINT32       mmuException;
+};
+
+struct kernel_handle_mmu_exception {
+    gctUINT32       mmuStatus;
+    gctPHYS_ADDR_T  physical;
+    gctUINT32       gpuAddress;
+};
+
+typedef struct _gcsTA_INTERFACE {
+    kernel_packet_command_t command;
+    union {
+        struct kernel_submit                   Submit;
+        struct kernel_start_command            StartCommand;
+        struct kernel_allocate_security_memory AllocateSecurityMemory;
+        struct kernel_execute                  Execute;
+        struct kernel_map_memory               MapMemory;
+        struct kernel_unmap_memory             UnmapMemory;
+        struct kernel_read_mmu_exception       ReadMMUException;
+        struct kernel_handle_mmu_exception     HandleMMUException;
+    } u;
+    gceSTATUS result;
+} gcsTA_INTERFACE;
+
+enum {
+    gcvTA_COMMAND_INIT,
+    gcvTA_COMMAND_DISPATCH,
+
+    gcvTA_CALLBACK_ALLOC_SECURE_MEM,
+    gcvTA_CALLBACK_FREE_SECURE_MEM,
+};
+
+#endif
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_statistics.h

@@ -0,0 +1,135 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_statistics_h_
+#define __gc_hal_statistics_h_
+
+
+#define VIV_STAT_ENABLE_STATISTICS              0
+
+/*  Toal number of frames for which the frame time is accounted. We have storage
+    to keep frame times for last this many frames.
+*/
+#define VIV_STAT_FRAME_BUFFER_SIZE              30
+
+
+/*
+    Total number of frames sampled for a mode. This means
+
+    # of frames for HZ Current  : VIV_STAT_EARLY_Z_SAMPLE_FRAMES
+    # of frames for HZ Switched : VIV_STAT_EARLY_Z_SAMPLE_FRAMES
+  +
+  --------------------------------------------------------
+                                : (2 * VIV_STAT_EARLY_Z_SAMPLE_FRAMES) frames needed
+
+    IMPORTANT: This total must be smaller than VIV_STAT_FRAME_BUFFER_SIZE
+*/
+#define VIV_STAT_EARLY_Z_SAMPLE_FRAMES          7
+#define VIV_STAT_EARLY_Z_LATENCY_FRAMES         2
+
+/* Multiplication factor for previous Hz off mode. Make it more than 1.0 to advertise HZ on.*/
+#define VIV_STAT_EARLY_Z_FACTOR                 (1.05f)
+
+/* Defines the statistical data keys monitored by the statistics module */
+typedef enum _gceSTATISTICS
+{
+    gcvFRAME_FPS        =   1,
+}
+gceSTATISTICS;
+
+/* HAL statistics information. */
+typedef struct _gcsSTATISTICS_EARLYZ
+{
+    gctUINT                     switchBackCount;
+    gctUINT                     nextCheckPoint;
+    gctBOOL                     disabled;
+}
+gcsSTATISTICS_EARLYZ;
+
+
+/* HAL statistics information. */
+typedef struct _gcsSTATISTICS
+{
+    gctUINT64                   frameTime[VIV_STAT_FRAME_BUFFER_SIZE];
+    gctUINT64                   previousFrameTime;
+    gctUINT                     frame;
+    gcsSTATISTICS_EARLYZ        earlyZ;
+}
+gcsSTATISTICS;
+
+
+/* Add a frame based data into current statistics. */
+void
+gcfSTATISTICS_AddData(
+    IN gceSTATISTICS Key,
+    IN gctUINT Value
+    );
+
+/* Marks the frame end and triggers statistical calculations and decisions.*/
+void
+gcfSTATISTICS_MarkFrameEnd (
+    void
+    );
+
+/* Sets whether the dynmaic HZ is disabled or not .*/
+void
+gcfSTATISTICS_DisableDynamicEarlyZ (
+    IN gctBOOL Disabled
+    );
+
+#endif /*__gc_hal_statistics_h_ */
+
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_version.h

@@ -0,0 +1,71 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_version_h_
+#define __gc_hal_version_h_
+
+#define gcvVERSION_MAJOR        6
+
+#define gcvVERSION_MINOR        2
+
+#define gcvVERSION_PATCH        4
+
+#define gcvVERSION_BUILD     190076
+
+#define gcvVERSION_STRING    "6.2.4.p4.190076"
+
+#endif /* __gc_hal_version_h_ */
+
+

drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_vg.h

@@ -0,0 +1,918 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_vg_h_
+#define __gc_hal_vg_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#include "gc_hal_rename.h"
+#include "gc_hal_types.h"
+#include "gc_hal_enum.h"
+#include "gc_hal_base.h"
+
+#if gcdENABLE_VG
+
+/* Thread routine type. */
+#if defined(LINUX)
+    typedef gctINT              gctTHREADFUNCRESULT;
+    typedef gctPOINTER          gctTHREADFUNCPARAMETER;
+#   define  gctTHREADFUNCTYPE
+#elif defined(WIN32)
+    typedef gctUINT             gctTHREADFUNCRESULT;
+    typedef gctPOINTER          gctTHREADFUNCPARAMETER;
+#   define  gctTHREADFUNCTYPE   __stdcall
+#elif defined(__QNXNTO__)
+    typedef void *              gctTHREADFUNCRESULT;
+    typedef gctPOINTER          gctTHREADFUNCPARAMETER;
+#   define  gctTHREADFUNCTYPE
+#endif
+
+typedef gctTHREADFUNCRESULT (gctTHREADFUNCTYPE * gctTHREADFUNC) (
+    gctTHREADFUNCPARAMETER ThreadParameter
+    );
+
+
+#if defined(gcvDEBUG)
+#   undef gcvDEBUG
+#endif
+
+#define gcdFORCE_DEBUG 0
+#define gcdFORCE_MESSAGES 0
+
+
+#if DBG || defined(DEBUG) || defined(_DEBUG) || gcdFORCE_DEBUG
+#   define gcvDEBUG 1
+#else
+#   define gcvDEBUG 0
+#endif
+
+#define _gcmERROR_RETURN(prefix, func) \
+    status = func; \
+    if (gcmIS_ERROR(status)) \
+    { \
+        prefix##PRINT_VERSION(); \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+            #prefix "ERR_RETURN: status=%d(%s) @ %s(%d)", \
+            status, gcoOS_DebugStatus2Name(status), __FUNCTION__, __LINE__); \
+        return status; \
+    } \
+    do { } while (gcvFALSE)
+
+#define gcmERROR_RETURN(func)         _gcmERROR_RETURN(gcm, func)
+
+#define gcmLOG_LOCATION()
+
+#define gcmkIS_ERROR(status)        (status < 0)
+
+#define gcmALIGNDOWN(n, align) \
+(\
+    (n) & ~((align) - 1) \
+)
+
+#define gcmIS_VALID_INDEX(Index, Array) \
+    (((gctUINT) (Index)) < gcmCOUNTOF(Array))
+
+
+#define gcmIS_NAN(x) \
+(\
+    ((* (gctUINT32_PTR) &(x)) & 0x7FFFFFFF) == 0x7FFFFFFF \
+)
+
+#define gcmLERP(v1, v2, w) \
+    ((v1) * (w) + (v2) * (1.0f - (w)))
+
+#define gcmINTERSECT(Start1, Start2, Length) \
+    (gcmABS((Start1) - (Start2)) < (Length))
+
+/*******************************************************************************
+**
+**  gcmERR_GOTO
+**
+**      Prints a message and terminates the current loop on error.
+**
+**  ASSUMPTIONS:
+**
+**      'status' variable of gceSTATUS type must be defined.
+**
+**  ARGUMENTS:
+**
+**      Function
+**          Function to evaluate.
+*/
+
+#define gcmERR_GOTO(Function) \
+    status = Function; \
+    if (gcmIS_ERROR(status)) \
+    { \
+        gcmTRACE(\
+            gcvLEVEL_ERROR, \
+            "gcmERR_GOTO: status=%d @ line=%d in function %s.\n", \
+            status, __LINE__, __FUNCTION__ \
+            ); \
+        goto ErrorHandler; \
+    }
+
+#if gcvDEBUG || gcdFORCE_MESSAGES
+#   define gcmVERIFY_BOOLEAN(Expression) \
+        gcmASSERT(\
+            ((Expression) == gcvFALSE ) || \
+            ((Expression) == gcvTRUE  )    \
+            )
+#else
+#   define gcmVERIFY_BOOLEAN(Expression)
+#endif
+
+/*******************************************************************************
+**
+**  gcmVERIFYFIELDFIT
+**
+**      Verify whether the value fits in the field.
+**
+**  ARGUMENTS:
+**
+**      data    Data value.
+**      reg     Name of register.
+**      field   Name of field within register.
+**      value   Value for field.
+*/
+#define gcmVERIFYFIELDFIT(reg, field, value) \
+    gcmASSERT(\
+        (value) <= gcmFIELDMAX(reg, field) \
+        )
+/*******************************************************************************
+**
+**  gcmFIELDMAX
+**
+**      Get field maximum value.
+**
+**  ARGUMENTS:
+**
+**      reg     Name of register.
+**      field   Name of field within register.
+*/
+#define gcmFIELDMAX(reg, field) \
+(\
+    (gctUINT32) \
+        (\
+        (__gcmGETSIZE(reg##_##field) == 32) \
+                ?  ~0U \
+                : (~(~0U << __gcmGETSIZE(reg##_##field))) \
+        ) \
+)
+
+
+/* ANSI C does not have the 'f' functions, define replacements here. */
+#define gcmSINF(x)                      ((gctFLOAT) sin(x))
+#define gcmCOSF(x)                      ((gctFLOAT) cos(x))
+#define gcmASINF(x)                     ((gctFLOAT) asin(x))
+#define gcmACOSF(x)                     ((gctFLOAT) acos(x))
+#define gcmSQRTF(x)                     ((gctFLOAT) sqrt(x))
+#define gcmFABSF(x)                     ((gctFLOAT) fabs(x))
+#define gcmFMODF(x, y)                  ((gctFLOAT) fmod((x), (y)))
+#define gcmCEILF(x)                     ((gctFLOAT) ceil(x))
+#define gcmFLOORF(x)                    ((gctFLOAT) floor(x))
+
+
+
+/* Fixed point constants. */
+#define gcvZERO_X               ((gctFIXED_POINT) 0x00000000)
+#define gcvHALF_X               ((gctFIXED_POINT) 0x00008000)
+#define gcvONE_X                ((gctFIXED_POINT) 0x00010000)
+#define gcvNEGONE_X             ((gctFIXED_POINT) 0xFFFF0000)
+#define gcvTWO_X                ((gctFIXED_POINT) 0x00020000)
+
+/* Integer constants. */
+#define gcvMAX_POS_INT          ((gctINT) 0x7FFFFFFF)
+#define gcvMAX_NEG_INT          ((gctINT) 0x80000000)
+
+/* Float constants. */
+#define gcvMAX_POS_FLOAT        ((gctFLOAT)  3.4028235e+038)
+#define gcvMAX_NEG_FLOAT        ((gctFLOAT) -3.4028235e+038)
+
+/******************************************************************************\
+***************************** Miscellaneous Macro ******************************
+\******************************************************************************/
+
+#define gcmKB2BYTES(Kilobyte) \
+(\
+    (Kilobyte) << 10 \
+)
+
+#define gcmMB2BYTES(Megabyte) \
+(\
+    (Megabyte) << 20 \
+)
+
+#define gcmMAT(Matrix, Row, Column) \
+(\
+    (Matrix) [(Row) * 3 + (Column)] \
+)
+
+#define gcmMAKE2CHAR(Char1, Char2) \
+(\
+    ((gctUINT16) (gctUINT8) (Char1) << 0) | \
+    ((gctUINT16) (gctUINT8) (Char2) << 8) \
+)
+
+#define gcmMAKE4CHAR(Char1, Char2, Char3, Char4) \
+(\
+    ((gctUINT32)(gctUINT8) (Char1) <<  0) | \
+    ((gctUINT32)(gctUINT8) (Char2) <<  8) | \
+    ((gctUINT32)(gctUINT8) (Char3) << 16) | \
+    ((gctUINT32)(gctUINT8) (Char4) << 24) \
+)
+
+/* some platforms need to fix the physical address for HW to access*/
+#define gcmFIXADDRESS(address) \
+(\
+    (address)\
+)
+
+#define gcmkFIXADDRESS(address) \
+(\
+    (address)\
+)
+
+/******************************************************************************\
+****************************** Kernel Debug Macro ******************************
+\******************************************************************************/
+
+/* Return the kernel logical pointer for the given physical one. */
+gceSTATUS
+gckOS_GetKernelLogical(
+    IN gckOS Os,
+    IN gctUINT32 Address,
+    OUT gctPOINTER * KernelPointer
+    );
+
+/* Return the kernel logical pointer for the given physical one. */
+gceSTATUS
+gckOS_GetKernelLogicalEx(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT32 Address,
+    OUT gctPOINTER * KernelPointer
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----------------------------- Semaphore Object -----------------------------*/
+
+/* Increment the value of a semaphore. */
+gceSTATUS
+gckOS_IncrementSemaphore(
+    IN gckOS Os,
+    IN gctSEMAPHORE Semaphore
+    );
+
+/* Decrement the value of a semaphore (waiting might occur). */
+gceSTATUS
+gckOS_DecrementSemaphore(
+    IN gckOS Os,
+    IN gctSEMAPHORE Semaphore
+    );
+
+
+/*----------------------------------------------------------------------------*/
+/*------------------------------- Thread Object ------------------------------*/
+
+/* Start a thread. */
+gceSTATUS
+gckOS_StartThread(
+    IN gckOS Os,
+    IN gctTHREADFUNC ThreadFunction,
+    IN gctPOINTER ThreadParameter,
+    OUT gctTHREAD * Thread
+    );
+
+/* Stop a thread. */
+gceSTATUS
+gckOS_StopThread(
+    IN gckOS Os,
+    IN gctTHREAD Thread
+    );
+
+/* Verify whether the thread is still running. */
+gceSTATUS
+gckOS_VerifyThread(
+    IN gckOS Os,
+    IN gctTHREAD Thread
+    );
+
+
+/* Construct a new gckVGKERNEL object. */
+gceSTATUS
+gckVGKERNEL_Construct(
+    IN gckOS Os,
+    IN gctPOINTER Context,
+    IN gckKERNEL  inKernel,
+    OUT gckVGKERNEL * Kernel
+    );
+
+/* Destroy an gckVGKERNEL object. */
+gceSTATUS
+gckVGKERNEL_Destroy(
+    IN gckVGKERNEL Kernel
+    );
+
+/* Unmap memory. */
+gceSTATUS
+gckKERNEL_UnmapMemory(
+    IN gckKERNEL Kernel,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID
+    );
+
+/* Dispatch a user-level command. */
+gceSTATUS
+gckVGKERNEL_Dispatch(
+    IN gckKERNEL Kernel,
+    IN gctBOOL FromUser,
+    IN OUT struct _gcsHAL_INTERFACE * Interface
+    );
+
+/* Query command buffer requirements. */
+gceSTATUS
+gckKERNEL_QueryCommandBuffer(
+    IN gckKERNEL Kernel,
+    OUT gcsCOMMAND_BUFFER_INFO_PTR Information
+    );
+
+/******************************************************************************\
+******************************* gckVGHARDWARE Object ******************************
+\******************************************************************************/
+
+/* Construct a new gckVGHARDWARE object. */
+gceSTATUS
+gckVGHARDWARE_Construct(
+    IN gckOS Os,
+    OUT gckVGHARDWARE * Hardware
+    );
+
+/* Destroy an gckVGHARDWARE object. */
+gceSTATUS
+gckVGHARDWARE_Destroy(
+    IN gckVGHARDWARE Hardware
+    );
+
+/* Query system memory requirements. */
+gceSTATUS
+gckVGHARDWARE_QuerySystemMemory(
+    IN gckVGHARDWARE Hardware,
+    OUT gctSIZE_T * SystemSize,
+    OUT gctUINT32 * SystemBaseAddress
+    );
+
+/* Build virtual address. */
+gceSTATUS
+gckVGHARDWARE_BuildVirtualAddress(
+    IN gckVGHARDWARE Hardware,
+    IN gctUINT32 Index,
+    IN gctUINT32 Offset,
+    OUT gctUINT32 * Address
+    );
+
+/* Kickstart the command processor. */
+gceSTATUS
+gckVGHARDWARE_Execute(
+    IN gckVGHARDWARE Hardware,
+    IN gctUINT32 Address,
+    IN gctUINT32 Count
+    );
+
+/* Query the available memory. */
+gceSTATUS
+gckVGHARDWARE_QueryMemory(
+    IN gckVGHARDWARE Hardware,
+    OUT gctSIZE_T * InternalSize,
+    OUT gctUINT32 * InternalBaseAddress,
+    OUT gctUINT32 * InternalAlignment,
+    OUT gctSIZE_T * ExternalSize,
+    OUT gctUINT32 * ExternalBaseAddress,
+    OUT gctUINT32 * ExternalAlignment,
+    OUT gctUINT32 * HorizontalTileSize,
+    OUT gctUINT32 * VerticalTileSize
+    );
+
+/* Query the identity of the hardware. */
+gceSTATUS
+gckVGHARDWARE_QueryChipIdentity(
+    IN gckVGHARDWARE Hardware,
+    OUT gceCHIPMODEL* ChipModel,
+    OUT gctUINT32* ChipRevision,
+    OUT gctUINT32* ProductID,
+    OUT gctUINT32* EcoID,
+    OUT gctUINT32* CustomerID,
+    OUT gctUINT32* ChipFeatures,
+    OUT gctUINT32* ChipMinorFeatures,
+    OUT gctUINT32* ChipMinorFeatures1
+    );
+
+/* Convert an API format. */
+gceSTATUS
+gckVGHARDWARE_ConvertFormat(
+    IN gckVGHARDWARE Hardware,
+    IN gceSURF_FORMAT Format,
+    OUT gctUINT32 * BitsPerPixel,
+    OUT gctUINT32 * BytesPerTile
+    );
+
+/* Split a harwdare specific address into API stuff. */
+gceSTATUS
+gckVGHARDWARE_SplitMemory(
+    IN gckVGHARDWARE Hardware,
+    IN gctUINT32 Address,
+    OUT gcePOOL * Pool,
+    OUT gctUINT32 * Offset
+    );
+
+/* Align size to tile boundary. */
+gceSTATUS
+gckVGHARDWARE_AlignToTile(
+    IN gckVGHARDWARE Hardware,
+    IN gceSURF_TYPE Type,
+    IN OUT gctUINT32_PTR Width,
+    IN OUT gctUINT32_PTR Height
+    );
+
+/* Convert logical address to hardware specific address. */
+gceSTATUS
+gckVGHARDWARE_ConvertLogical(
+    IN gckVGHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctBOOL InUserSpace,
+    OUT gctUINT32 * Address
+    );
+
+/* Program MMU. */
+gceSTATUS
+gckVGHARDWARE_SetMMU(
+    IN gckVGHARDWARE Hardware,
+    IN gctPOINTER Logical
+    );
+
+/* Flush the MMU. */
+gceSTATUS
+gckVGHARDWARE_FlushMMU(
+    IN gckVGHARDWARE Hardware
+    );
+
+/* Get idle register. */
+gceSTATUS
+gckVGHARDWARE_GetIdle(
+    IN gckVGHARDWARE Hardware,
+    OUT gctUINT32 * Data
+    );
+
+/* Flush the caches. */
+gceSTATUS
+gckVGHARDWARE_Flush(
+    IN gckVGHARDWARE Hardware,
+    IN gceKERNEL_FLUSH Flush,
+    IN gctPOINTER Logical,
+    IN OUT gctSIZE_T * Bytes
+    );
+
+/* Enable/disable fast clear. */
+gceSTATUS
+gckVGHARDWARE_SetFastClear(
+    IN gckVGHARDWARE Hardware,
+    IN gctINT Enable
+    );
+
+gceSTATUS
+gckVGHARDWARE_ReadInterrupt(
+    IN gckVGHARDWARE Hardware,
+    OUT gctUINT32_PTR IDs
+    );
+
+/* Power management. */
+gceSTATUS
+gckVGHARDWARE_SetPowerManagementState(
+    IN gckVGHARDWARE Hardware,
+    IN gceCHIPPOWERSTATE State
+    );
+
+gceSTATUS
+gckVGHARDWARE_QueryPowerManagementState(
+    IN gckVGHARDWARE Hardware,
+    OUT gceCHIPPOWERSTATE* State
+    );
+
+gceSTATUS
+gckVGHARDWARE_SetPowerManagement(
+    IN gckVGHARDWARE Hardware,
+    IN gctBOOL PowerManagement
+    );
+
+gceSTATUS
+gckVGHARDWARE_SetPowerOffTimeout(
+    IN gckVGHARDWARE  Hardware,
+    IN gctUINT32    Timeout
+    );
+
+gceSTATUS
+gckVGHARDWARE_QueryPowerOffTimeout(
+    IN gckVGHARDWARE  Hardware,
+    OUT gctUINT32*  Timeout
+    );
+
+gceSTATUS
+gckVGHARDWARE_QueryIdle(
+    IN gckVGHARDWARE Hardware,
+    OUT gctBOOL_PTR IsIdle
+    );
+/******************************************************************************\
+*************************** Command Buffer Structures **************************
+\******************************************************************************/
+
+/* Vacant command buffer marker. */
+#define gcvVACANT_BUFFER        ((gcsCOMPLETION_SIGNAL_PTR) ((gctSIZE_T)1))
+
+/* Command buffer header. */
+typedef struct _gcsCMDBUFFER * gcsCMDBUFFER_PTR;
+typedef struct _gcsCMDBUFFER
+{
+    /* Pointer to the completion signal. */
+    gcsCOMPLETION_SIGNAL_PTR    completion;
+
+    /* The user sets this to the node of the container buffer whitin which
+       this particular command buffer resides. The kernel sets this to the
+       node of the internally allocated buffer. */
+    gcuVIDMEM_NODE_PTR          node;
+
+    /* Command buffer hardware address. */
+    gctUINT32                   address;
+
+    /* The offset of the buffer from the beginning of the header. */
+    gctUINT32                   bufferOffset;
+
+    /* Size of the area allocated for the data portion of this particular
+       command buffer (headers and tail reserves are excluded). */
+    gctUINT32                   size;
+
+    /* Offset into the buffer [0..size]; reflects exactly how much data has
+       been put into the command buffer. */
+    gctUINT                     offset;
+
+    /* The number of command units in the buffer for the hardware to
+       execute. */
+    gctUINT32                   dataCount;
+
+    /* MANAGED BY : user HAL (gcoBUFFER object).
+       USED BY    : user HAL (gcoBUFFER object).
+       Points to the immediate next allocated command buffer. */
+    gcsCMDBUFFER_PTR            nextAllocated;
+
+    /* MANAGED BY : user layers (HAL and drivers).
+       USED BY    : kernel HAL (gcoBUFFER object).
+       Points to the next subbuffer if any. A family of subbuffers are chained
+       together and are meant to be executed inseparably as a unit. Meaning
+       that context switching cannot occur while a chain of subbuffers is being
+       executed. */
+    gcsCMDBUFFER_PTR            nextSubBuffer;
+}
+gcsCMDBUFFER;
+
+/* Command queue element. */
+typedef struct _gcsVGCMDQUEUE
+{
+    /* Pointer to the command buffer header. */
+    gcsCMDBUFFER_PTR            commandBuffer;
+
+    /* Dynamic vs. static command buffer state. */
+    gctBOOL                     dynamic;
+}
+gcsVGCMDQUEUE;
+
+/* Context map entry. */
+typedef struct _gcsVGCONTEXT_MAP
+{
+    /* State index. */
+    gctUINT32                   index;
+
+    /* New state value. */
+    gctUINT32                   data;
+
+    /* Points to the next entry in the mod list. */
+    gcsVGCONTEXT_MAP_PTR            next;
+}
+gcsVGCONTEXT_MAP;
+
+/* gcsVGCONTEXT structure that holds the current context. */
+typedef struct _gcsVGCONTEXT
+{
+    /* Context ID. */
+    gctUINT64                   id;
+
+    /* State caching ebable flag. */
+    gctBOOL                     stateCachingEnabled;
+
+    /* Current pipe. */
+    gctUINT32                   currentPipe;
+
+    /* State map/mod buffer. */
+    gctUINT32                   mapFirst;
+    gctUINT32                   mapLast;
+    gcsVGCONTEXT_MAP_PTR        mapContainer;
+    gcsVGCONTEXT_MAP_PTR        mapPrev;
+    gcsVGCONTEXT_MAP_PTR        mapCurr;
+    gcsVGCONTEXT_MAP_PTR        firstPrevMap;
+    gcsVGCONTEXT_MAP_PTR        firstCurrMap;
+
+    /* Main context buffer. */
+    gcsCMDBUFFER_PTR            header;
+    gctUINT32_PTR               buffer;
+
+    /* Completion signal. */
+    gctHANDLE                   process;
+    gctSIGNAL                   signal;
+
+#if defined(__QNXNTO__)
+    gctSIGNAL                   userSignal;
+    gctINT32                    coid;
+    gctINT32                    rcvid;
+#endif
+}
+gcsVGCONTEXT;
+
+/* User space task header. */
+typedef struct _gcsTASK * gcsTASK_PTR;
+typedef struct _gcsTASK
+{
+    /* Pointer to the next task for the same interrupt in user space. */
+    gcsTASK_PTR                 next;
+
+    /* Size of the task data that immediately follows the structure. */
+    gctUINT                     size;
+
+    /* Task data starts here. */
+    /* ... */
+}
+gcsTASK;
+
+/* User space task master table entry. */
+typedef struct _gcsTASK_MASTER_ENTRY * gcsTASK_MASTER_ENTRY_PTR;
+typedef struct _gcsTASK_MASTER_ENTRY
+{
+    /* Pointers to the head and to the tail of the task chain. */
+    gcsTASK_PTR                 head;
+    gcsTASK_PTR                 tail;
+}
+gcsTASK_MASTER_ENTRY;
+
+/* User space task master table entry. */
+typedef struct _gcsTASK_MASTER_TABLE
+{
+    /* Table with one entry per block. */
+    gcsTASK_MASTER_ENTRY        table[gcvBLOCK_COUNT];
+
+    /* The total number of tasks sckeduled. */
+    gctUINT                     count;
+
+    /* The total size of event data in bytes. */
+    gctUINT                     size;
+
+#if defined(__QNXNTO__)
+    gctINT32                    coid;
+    gctINT32                    rcvid;
+#endif
+}
+gcsTASK_MASTER_TABLE;
+
+/******************************************************************************\
+***************************** gckVGINTERRUPT Object ******************************
+\******************************************************************************/
+
+typedef struct _gckVGINTERRUPT * gckVGINTERRUPT;
+
+typedef gceSTATUS (* gctINTERRUPT_HANDLER)(
+    IN gckVGKERNEL Kernel
+    );
+
+gceSTATUS
+gckVGINTERRUPT_Construct(
+    IN gckVGKERNEL Kernel,
+    OUT gckVGINTERRUPT * Interrupt
+    );
+
+gceSTATUS
+gckVGINTERRUPT_Destroy(
+    IN gckVGINTERRUPT Interrupt
+    );
+
+gceSTATUS
+gckVGINTERRUPT_Enable(
+    IN gckVGINTERRUPT Interrupt,
+    IN OUT gctINT32_PTR Id,
+    IN gctINTERRUPT_HANDLER Handler
+    );
+
+gceSTATUS
+gckVGINTERRUPT_Disable(
+    IN gckVGINTERRUPT Interrupt,
+    IN gctINT32 Id
+    );
+
+#ifndef __QNXNTO__
+
+gceSTATUS
+gckVGINTERRUPT_Enque(
+    IN gckVGINTERRUPT Interrupt
+    );
+
+#else
+
+gceSTATUS
+gckVGINTERRUPT_Enque(
+    IN gckVGINTERRUPT Interrupt,
+    OUT gckOS *Os,
+    OUT gctSEMAPHORE *Semaphore
+    );
+
+#endif
+
+gceSTATUS
+gckVGINTERRUPT_DumpState(
+    IN gckVGINTERRUPT Interrupt
+    );
+
+
+/******************************************************************************\
+******************************* gckVGCOMMAND Object *******************************
+\******************************************************************************/
+
+typedef struct _gckVGCOMMAND *      gckVGCOMMAND;
+
+/* Construct a new gckVGCOMMAND object. */
+gceSTATUS
+gckVGCOMMAND_Construct(
+    IN gckVGKERNEL Kernel,
+    IN gctUINT TaskGranularity,
+    IN gctUINT QueueSize,
+    OUT gckVGCOMMAND * Command
+    );
+
+/* Destroy an gckVGCOMMAND object. */
+gceSTATUS
+gckVGCOMMAND_Destroy(
+    IN gckVGCOMMAND Command
+    );
+
+/* Query command buffer attributes. */
+gceSTATUS
+gckVGCOMMAND_QueryCommandBuffer(
+    IN gckVGCOMMAND Command,
+    OUT gcsCOMMAND_BUFFER_INFO_PTR Information
+    );
+
+/* Allocate a command queue. */
+gceSTATUS
+gckVGCOMMAND_Allocate(
+    IN gckVGCOMMAND Command,
+    IN gctSIZE_T Size,
+    OUT gcsCMDBUFFER_PTR * CommandBuffer,
+    OUT gctPOINTER * Data
+    );
+
+/* Release memory held by the command queue. */
+gceSTATUS
+gckVGCOMMAND_Free(
+    IN gckVGCOMMAND Command,
+    IN gcsCMDBUFFER_PTR CommandBuffer
+    );
+
+/* Schedule the command queue for execution. */
+gceSTATUS
+gckVGCOMMAND_Execute(
+    IN gckVGCOMMAND Command,
+    IN gcsCMDBUFFER_PTR CommandBuffer
+    );
+
+/* Commit a buffer to the command queue. */
+gceSTATUS
+gckVGCOMMAND_Commit(
+    IN gckVGCOMMAND Command,
+    IN gcsVGCONTEXT_PTR Context,
+    IN gcsVGCMDQUEUE_PTR Queue,
+    IN gctUINT EntryCount,
+    IN gcsTASK_MASTER_TABLE_PTR TaskTable
+    );
+
+/******************************************************************************\
+********************************* gckVGMMU Object ********************************
+\******************************************************************************/
+
+typedef struct _gckVGMMU *          gckVGMMU;
+
+/* Construct a new gckVGMMU object. */
+gceSTATUS
+gckVGMMU_Construct(
+    IN gckVGKERNEL Kernel,
+    IN gctUINT32 MmuSize,
+    OUT gckVGMMU * Mmu
+    );
+
+/* Destroy an gckVGMMU object. */
+gceSTATUS
+gckVGMMU_Destroy(
+    IN gckVGMMU Mmu
+    );
+
+/* Allocate pages inside the MMU. */
+gceSTATUS
+gckVGMMU_AllocatePages(
+    IN gckVGMMU Mmu,
+    IN gctSIZE_T PageCount,
+    OUT gctPOINTER * PageTable,
+    OUT gctUINT32 * Address
+    );
+
+/* Remove a page table from the MMU. */
+gceSTATUS
+gckVGMMU_FreePages(
+    IN gckVGMMU Mmu,
+    IN gctPOINTER PageTable,
+    IN gctSIZE_T PageCount
+    );
+
+/* Set the MMU page with info. */
+gceSTATUS
+gckVGMMU_SetPage(
+   IN gckVGMMU Mmu,
+   IN gctUINT32 PageAddress,
+   IN gctUINT32 *PageEntry
+   );
+
+/* Flush MMU */
+gceSTATUS
+gckVGMMU_Flush(
+   IN gckVGMMU Mmu
+   );
+
+#endif /* gcdENABLE_VG */
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* __gc_hal_h_ */
+
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_array.h

@@ -0,0 +1,119 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_allocator_array_h_
+#define __gc_hal_kernel_allocator_array_h_
+
+extern gceSTATUS
+_GFPAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+
+extern gceSTATUS
+_UserMemoryAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+
+extern gceSTATUS
+_ReservedMemoryAllocatorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+
+#ifdef CONFIG_DMA_SHARED_BUFFER
+extern gceSTATUS
+_DmabufAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+#endif
+
+#ifndef NO_DMA_COHERENT
+extern gceSTATUS
+_DmaAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+#endif
+
+/* Default allocator entry. */
+gcsALLOCATOR_DESC allocatorArray[] =
+{
+    /* GFP allocator. */
+    gcmkDEFINE_ALLOCATOR_DESC("gfp", _GFPAlloctorInit),
+
+    /* User memory importer. */
+    gcmkDEFINE_ALLOCATOR_DESC("user", _UserMemoryAlloctorInit),
+
+#ifdef CONFIG_DMA_SHARED_BUFFER
+    /* Dmabuf allocator. */
+    gcmkDEFINE_ALLOCATOR_DESC("dmabuf", _DmabufAlloctorInit),
+#endif
+
+#ifndef NO_DMA_COHERENT
+    gcmkDEFINE_ALLOCATOR_DESC("dma", _DmaAlloctorInit),
+#endif
+
+    gcmkDEFINE_ALLOCATOR_DESC("reserved-mem", _ReservedMemoryAllocatorInit),
+};
+
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c

@@ -0,0 +1,604 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0)
+#include <linux/dma-direct.h>
+#endif
+
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+#define _GC_OBJ_ZONE    gcvZONE_OS
+
+typedef struct _gcsDMA_PRIV * gcsDMA_PRIV_PTR;
+typedef struct _gcsDMA_PRIV {
+    atomic_t usage;
+}
+gcsDMA_PRIV;
+
+struct mdl_dma_priv {
+    gctPOINTER kvaddr;
+    dma_addr_t dmaHandle;
+};
+
+/*
+* Debugfs support.
+*/
+static int gc_dma_usage_show(struct seq_file* m, void* data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckALLOCATOR Allocator = node->device;
+    gcsDMA_PRIV_PTR priv = Allocator->privateData;
+    long long usage = (long long)atomic_read(&priv->usage);
+
+    seq_printf(m, "type        n pages        bytes\n");
+    seq_printf(m, "normal   %10llu %12llu\n", usage, usage * PAGE_SIZE);
+
+    return 0;
+}
+
+static gcsINFO InfoList[] =
+{
+    {"dmausage", gc_dma_usage_show},
+};
+
+static void
+_DebugfsInit(
+    IN gckALLOCATOR Allocator,
+    IN gckDEBUGFS_DIR Root
+    )
+{
+    gcmkVERIFY_OK(
+        gckDEBUGFS_DIR_Init(&Allocator->debugfsDir, Root->root, "dma"));
+
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_CreateFiles(
+        &Allocator->debugfsDir,
+        InfoList,
+        gcmCOUNTOF(InfoList),
+        Allocator
+        ));
+}
+
+static void
+_DebugfsCleanup(
+    IN gckALLOCATOR Allocator
+    )
+{
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(
+        &Allocator->debugfsDir,
+        InfoList,
+        gcmCOUNTOF(InfoList)
+        ));
+
+    gckDEBUGFS_DIR_Deinit(&Allocator->debugfsDir);
+}
+
+static gceSTATUS
+_DmaAlloc(
+    IN gckALLOCATOR Allocator,
+    INOUT PLINUX_MDL Mdl,
+    IN gctSIZE_T NumPages,
+    IN gctUINT32 Flags
+    )
+{
+    gceSTATUS status;
+    u32 gfp = GFP_KERNEL | gcdNOWARN;
+    gcsDMA_PRIV_PTR allocatorPriv = (gcsDMA_PRIV_PTR)Allocator->privateData;
+
+    struct mdl_dma_priv *mdlPriv=gcvNULL;
+    gckOS os = Allocator->os;
+
+    gcmkHEADER_ARG("Mdl=%p NumPages=0x%zx Flags=0x%x", Mdl, NumPages, Flags);
+
+    gcmkONERROR(gckOS_Allocate(os, sizeof(struct mdl_dma_priv), (gctPOINTER *)&mdlPriv));
+    mdlPriv->kvaddr = gcvNULL;
+
+#if defined(CONFIG_ZONE_DMA32) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
+    if (Flags & gcvALLOC_FLAG_4GB_ADDR)
+    {
+        gfp |= __GFP_DMA32;
+    }
+#endif
+
+    mdlPriv->kvaddr
+#if defined CONFIG_MIPS || defined CONFIG_CPU_CSKYV2 || defined CONFIG_PPC || defined CONFIG_ARM64
+        = dma_alloc_coherent(galcore_device, NumPages * PAGE_SIZE, &mdlPriv->dmaHandle, gfp);
+#else
+        = dma_alloc_writecombine(galcore_device, NumPages * PAGE_SIZE,  &mdlPriv->dmaHandle, gfp);
+#endif
+
+#ifdef CONFLICT_BETWEEN_BASE_AND_PHYS
+    if ((os->device->baseAddress & 0x80000000) != (mdlPriv->dmaHandle & 0x80000000))
+    {
+        mdlPriv->dmaHandle = (mdlPriv->dmaHandle & ~0x80000000)
+                           | (os->device->baseAddress & 0x80000000);
+    }
+#endif
+
+    if (mdlPriv->kvaddr == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    Mdl->priv = mdlPriv;
+
+    Mdl->dmaHandle = mdlPriv->dmaHandle;
+
+    /* Statistic. */
+    atomic_add(NumPages, &allocatorPriv->usage);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mdlPriv)
+    {
+        gckOS_Free(os, mdlPriv);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_DmaGetSGT(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctSIZE_T Offset,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER *SGT
+    )
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)
+    struct page ** pages = gcvNULL;
+    struct page * page = gcvNULL;
+    struct sg_table *sgt = NULL;
+    struct mdl_dma_priv *mdlPriv = (struct mdl_dma_priv*)Mdl->priv;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gctSIZE_T offset = Offset & ~PAGE_MASK; /* Offset to the first page */
+    gctINT skipPages = Offset >> PAGE_SHIFT;     /* skipped pages */
+    gctINT numPages = (PAGE_ALIGN(Offset + Bytes) >> PAGE_SHIFT) - skipPages;
+    gctINT i;
+
+    gcmkASSERT(Offset + Bytes <= Mdl->numPages << PAGE_SHIFT);
+
+    sgt = kmalloc(sizeof(struct sg_table), GFP_KERNEL | gcdNOWARN);
+    if (!sgt)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    pages = kmalloc(sizeof(struct page*) * numPages, GFP_KERNEL | gcdNOWARN);
+    if (!pages)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+#if !defined(phys_to_page)
+    page = virt_to_page(mdlPriv->kvaddr);
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0)
+    page = phys_to_page(mdlPriv->dmaHandle);
+#else
+    page = phys_to_page(dma_to_phys(&Allocator->os->device->platform->device->dev, mdlPriv->dmaHandle));
+#endif
+
+    for (i = 0; i < numPages; ++i)
+    {
+        pages[i] = nth_page(page, i + skipPages);
+    }
+
+    if (sg_alloc_table_from_pages(sgt, pages, numPages, offset, Bytes, GFP_KERNEL) < 0)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    *SGT = (gctPOINTER)sgt;
+
+OnError:
+    if (pages)
+    {
+        kfree(pages);
+    }
+
+    if (gcmIS_ERROR(status) && sgt)
+    {
+        kfree(sgt);
+    }
+
+    return status;
+#else
+    return gcvSTATUS_NOT_SUPPORTED;
+#endif
+}
+
+static void
+_DmaFree(
+    IN gckALLOCATOR Allocator,
+    IN OUT PLINUX_MDL Mdl
+    )
+{
+    gckOS os = Allocator->os;
+    struct mdl_dma_priv *mdlPriv=(struct mdl_dma_priv *)Mdl->priv;
+    gcsDMA_PRIV_PTR allocatorPriv = (gcsDMA_PRIV_PTR)Allocator->privateData;
+
+#if defined CONFIG_MIPS || defined CONFIG_CPU_CSKYV2 || defined CONFIG_PPC || defined CONFIG_ARM64
+    dma_free_coherent(galcore_device, Mdl->numPages * PAGE_SIZE, mdlPriv->kvaddr, mdlPriv->dmaHandle);
+#else
+    dma_free_writecombine(galcore_device, Mdl->numPages * PAGE_SIZE, mdlPriv->kvaddr, mdlPriv->dmaHandle);
+#endif
+
+    gckOS_Free(os, mdlPriv);
+
+    /* Statistic. */
+    atomic_sub(Mdl->numPages, &allocatorPriv->usage);
+}
+
+static gceSTATUS
+_DmaMmap(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctBOOL Cacheable,
+    IN gctSIZE_T skipPages,
+    IN gctSIZE_T numPages,
+    IN struct vm_area_struct *vma
+    )
+{
+    struct mdl_dma_priv *mdlPriv = (struct mdl_dma_priv*)Mdl->priv;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Allocator=%p Mdl=%p vma=%p", Allocator, Mdl, vma);
+
+    gcmkASSERT(skipPages + numPages <= Mdl->numPages);
+
+    /* map kernel memory to user space.. */
+#if defined CONFIG_MIPS || defined CONFIG_CPU_CSKYV2 || defined CONFIG_PPC
+    if (remap_pfn_range(
+            vma,
+            vma->vm_start,
+            (mdlPriv->dmaHandle >> PAGE_SHIFT) + skipPages,
+            numPages << PAGE_SHIFT,
+            pgprot_writecombine(vma->vm_page_prot)) < 0)
+#else
+    /* map kernel memory to user space.. */
+    if (dma_mmap_writecombine(gcvNULL,
+            vma,
+            (gctINT8_PTR)mdlPriv->kvaddr + (skipPages << PAGE_SHIFT),
+            mdlPriv->dmaHandle + (skipPages << PAGE_SHIFT),
+            numPages << PAGE_SHIFT) < 0)
+#endif
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_WARNING, gcvZONE_OS,
+            "%s(%d): dma_mmap_attrs error",
+            __FUNCTION__, __LINE__
+            );
+
+        status = gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+static void
+_DmaUnmapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctUINT32 Size
+    )
+{
+    if (unlikely(current->mm == gcvNULL))
+    {
+        /* Do nothing if process is exiting. */
+        return;
+    }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)
+    if (vm_munmap((unsigned long)MdlMap->vmaAddr, Size) < 0)
+    {
+        gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): vm_munmap failed",
+                __FUNCTION__, __LINE__
+                );
+    }
+#else
+    down_write(&current->mm->mmap_sem);
+    if (do_munmap(current->mm, (unsigned long)MdlMap->vmaAddr, Size) < 0)
+    {
+        gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): do_munmap failed",
+                __FUNCTION__, __LINE__
+                );
+    }
+    up_write(&current->mm->mmap_sem);
+#endif
+}
+
+static gceSTATUS
+_DmaMapUser(
+    gckALLOCATOR Allocator,
+    PLINUX_MDL Mdl,
+    PLINUX_MDL_MAP MdlMap,
+    gctBOOL Cacheable
+    )
+{
+    gctPOINTER userLogical = gcvNULL;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Allocator=%p Mdl=%p Cacheable=%d", Allocator, Mdl, Cacheable);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
+    userLogical = (gctPOINTER)vm_mmap(gcvNULL,
+                    0L,
+                    Mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_NORESERVE,
+                    0);
+#else
+    down_write(&current->mm->mmap_sem);
+    userLogical = (gctPOINTER)do_mmap_pgoff(gcvNULL,
+                    0L,
+                    Mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED,
+                    0);
+    up_write(&current->mm->mmap_sem);
+#endif
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_OS,
+        "%s(%d): vmaAddr->%p for phys_addr->%p",
+        __FUNCTION__, __LINE__, userLogical, Mdl
+        );
+
+    if (IS_ERR(userLogical))
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): do_mmap_pgoff error",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    down_write(&current->mm->mmap_sem);
+    do
+    {
+        struct vm_area_struct *vma = find_vma(current->mm, (unsigned long)userLogical);
+        if (vma == gcvNULL)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_OS,
+                "%s(%d): find_vma error",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkERR_BREAK(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+
+        gcmkERR_BREAK(_DmaMmap(Allocator, Mdl, Cacheable, 0, Mdl->numPages, vma));
+
+        MdlMap->vmaAddr = userLogical;
+        MdlMap->cacheable = gcvFALSE;
+        MdlMap->vma = vma;
+    }
+    while (gcvFALSE);
+    up_write(&current->mm->mmap_sem);
+
+OnError:
+    if (gcmIS_ERROR(status) && userLogical)
+    {
+        _DmaUnmapUser(Allocator, Mdl, userLogical, Mdl->numPages * PAGE_SIZE);
+    }
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_DmaMapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    OUT gctPOINTER *Logical
+    )
+{
+    struct mdl_dma_priv *mdlPriv=(struct mdl_dma_priv *)Mdl->priv;
+    *Logical =mdlPriv->kvaddr;
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_DmaUnmapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_DmaCache(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctSIZE_T Offset,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Bytes,
+    IN gceCACHEOPERATION Operation
+    )
+{
+    switch (Operation)
+    {
+    case gcvCACHE_CLEAN:
+    case gcvCACHE_FLUSH:
+        _MemoryBarrier();
+        break;
+    case gcvCACHE_INVALIDATE:
+        break;
+    default:
+        return gcvSTATUS_INVALID_ARGUMENT;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_DmaPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctUINT32 Offset,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    struct mdl_dma_priv *mdlPriv=(struct mdl_dma_priv *)Mdl->priv;
+
+    *Physical = mdlPriv->dmaHandle + Offset;
+
+    return gcvSTATUS_OK;
+}
+
+static void
+_DmaAllocatorDestructor(
+    gcsALLOCATOR *Allocator
+    )
+{
+    _DebugfsCleanup(Allocator);
+
+    if (Allocator->privateData)
+    {
+        kfree(Allocator->privateData);
+    }
+
+    kfree(Allocator);
+}
+
+/* Default allocator operations. */
+gcsALLOCATOR_OPERATIONS DmaAllocatorOperations = {
+    .Alloc              = _DmaAlloc,
+    .Free               = _DmaFree,
+    .Mmap               = _DmaMmap,
+    .MapUser            = _DmaMapUser,
+    .UnmapUser          = _DmaUnmapUser,
+    .MapKernel          = _DmaMapKernel,
+    .UnmapKernel        = _DmaUnmapKernel,
+    .Cache              = _DmaCache,
+    .Physical           = _DmaPhysical,
+    .GetSGT             = _DmaGetSGT,
+};
+
+/* Default allocator entry. */
+gceSTATUS
+_DmaAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator = gcvNULL;
+    gcsDMA_PRIV_PTR priv = gcvNULL;
+
+    gcmkONERROR(gckALLOCATOR_Construct(Os, &DmaAllocatorOperations, &allocator));
+
+    priv = kzalloc(gcmSIZEOF(gcsDMA_PRIV), GFP_KERNEL | gcdNOWARN);
+
+    if (!priv)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    atomic_set(&priv->usage, 0);
+
+    /* Register private data. */
+    allocator->privateData = priv;
+    allocator->destructor  = _DmaAllocatorDestructor;
+
+    _DebugfsInit(allocator, Parent);
+
+    /*
+     * DMA allocator is only used for NonPaged memory
+     * when NO_DMA_COHERENT is not defined.
+     */
+    allocator->capability = gcvALLOC_FLAG_CONTIGUOUS
+                          | gcvALLOC_FLAG_DMABUF_EXPORTABLE
+#if defined(CONFIG_ZONE_DMA32) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
+                          | gcvALLOC_FLAG_4GB_ADDR
+#endif
+                          ;
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (allocator)
+    {
+        kfree(allocator);
+    }
+    return status;
+}
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dmabuf.c

@@ -0,0 +1,546 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/dma-buf.h>
+#include <linux/platform_device.h>
+
+#define _GC_OBJ_ZONE gcvZONE_OS
+
+/* Descriptor of a dma_buf imported. */
+typedef struct _gcsDMABUF
+{
+    struct dma_buf            * dmabuf;
+    struct dma_buf_attachment * attachment;
+    struct sg_table           * sgt;
+    unsigned long             * pagearray;
+
+    int                         npages;
+    int                         pid;
+    struct list_head            list;
+}
+gcsDMABUF;
+
+struct allocator_priv
+{
+    struct mutex lock;
+    struct list_head buf_list;
+};
+
+/*
+* Debugfs support.
+*/
+static int dma_buf_info_show(struct seq_file* m, void* data)
+{
+    int ret;
+    gcsDMABUF *buf_desc;
+    struct dma_buf_attachment *attach_obj;
+    int count = 0;
+    size_t size = 0;
+    int npages = 0;
+    const char *exp_name;
+
+    gcsINFO_NODE *node = m->private;
+    gckALLOCATOR allocator = node->device;
+    struct allocator_priv *priv = allocator->privateData;
+
+    ret = mutex_lock_interruptible(&priv->lock);
+
+    if (ret)
+        return ret;
+
+    seq_puts(m, "Attached dma-buf objects:\n");
+    seq_puts(m, "   pid     fd    pages     size   exporter attached-devices\n");
+
+    list_for_each_entry(buf_desc, &priv->buf_list, list) {
+        struct dma_buf *buf_obj = buf_desc->dmabuf;
+
+        ret = mutex_lock_interruptible(&buf_obj->lock);
+
+        if (ret) {
+            seq_puts(m,
+                 "ERROR locking buffer object: skipping\n");
+            continue;
+        }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0)
+        exp_name = buf_obj->exp_name;
+#else
+        exp_name = "unknown";
+#endif
+
+        seq_printf(m, "%6d %p %8d %8zu %10s",
+                buf_desc->pid,
+                buf_desc->dmabuf,
+                buf_desc->npages,
+                buf_obj->size,
+                exp_name);
+
+        list_for_each_entry(attach_obj, &buf_obj->attachments, node) {
+            seq_printf(m, " %s", dev_name(attach_obj->dev));
+        }
+        seq_puts(m, "\n");
+
+        count++;
+        size += buf_obj->size;
+        npages += buf_desc->npages;
+
+        mutex_unlock(&buf_obj->lock);
+    }
+
+    seq_printf(m, "\nTotal %d objects, %d pages, %zu bytes\n", count, npages, size);
+
+    mutex_unlock(&priv->lock);
+    return 0;
+}
+
+static gcsINFO _InfoList[] =
+{
+    {"bufinfo", dma_buf_info_show},
+};
+
+static void
+_DebugfsInit(
+    IN gckALLOCATOR Allocator,
+    IN gckDEBUGFS_DIR Root
+    )
+{
+    gcmkVERIFY_OK(
+        gckDEBUGFS_DIR_Init(&Allocator->debugfsDir, Root->root, "dma_buf"));
+
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_CreateFiles(
+        &Allocator->debugfsDir,
+        _InfoList,
+        gcmCOUNTOF(_InfoList),
+        Allocator
+        ));
+}
+
+static void
+_DebugfsCleanup(
+    IN gckALLOCATOR Allocator
+    )
+{
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(
+        &Allocator->debugfsDir,
+        _InfoList,
+        gcmCOUNTOF(_InfoList)
+        ));
+
+    gckDEBUGFS_DIR_Deinit(&Allocator->debugfsDir);
+}
+
+static gceSTATUS
+_DmabufAttach(
+    IN gckALLOCATOR Allocator,
+    IN gcsATTACH_DESC_PTR Desc,
+    IN PLINUX_MDL Mdl
+    )
+{
+    gceSTATUS status;
+
+    gckOS os = Allocator->os;
+
+    struct dma_buf *dmabuf = Desc->dmaBuf.dmabuf;
+    struct sg_table *sgt = NULL;
+    struct dma_buf_attachment *attachment = NULL;
+    int npages = 0;
+    unsigned long *pagearray = NULL;
+    int i, j, k = 0;
+    struct scatterlist *s;
+    struct allocator_priv *priv = Allocator->privateData;
+    gcsDMABUF *buf_desc = NULL;
+
+    gcmkHEADER();
+
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    if (!dmabuf)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    get_dma_buf(dmabuf);
+    attachment = dma_buf_attach(dmabuf, &os->device->platform->device->dev);
+
+    if (!attachment)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    sgt = dma_buf_map_attachment(attachment, DMA_BIDIRECTIONAL);
+
+    if (!sgt)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    /* Prepare page array. */
+    /* Get number of pages. */
+    for_each_sg(sgt->sgl, s, sgt->orig_nents, i)
+    {
+        npages += (sg_dma_len(s) + PAGE_SIZE - 1) / PAGE_SIZE;
+    }
+
+    /* Allocate page array. */
+    gcmkONERROR(gckOS_Allocate(os, npages * gcmSIZEOF(*pagearray), (gctPOINTER *)&pagearray));
+
+    /* Fill page array. */
+    for_each_sg(sgt->sgl, s, sgt->orig_nents, i)
+    {
+        for (j = 0; j < (sg_dma_len(s) + PAGE_SIZE - 1) / PAGE_SIZE; j++)
+        {
+            pagearray[k++] = sg_dma_address(s) + j * PAGE_SIZE;
+        }
+    }
+
+    /* Prepare descriptor. */
+    gcmkONERROR(gckOS_Allocate(os, sizeof(gcsDMABUF), (gctPOINTER *)&buf_desc));
+
+    buf_desc->dmabuf = dmabuf;
+    buf_desc->pagearray = pagearray;
+    buf_desc->attachment = attachment;
+    buf_desc->sgt = sgt;
+
+    /* Record in buffer list to support debugfs. */
+    buf_desc->npages = npages;
+    buf_desc->pid    = _GetProcessID();
+
+    mutex_lock(&priv->lock);
+    list_add(&buf_desc->list, &priv->buf_list);
+    mutex_unlock(&priv->lock);
+
+    /* Record page number. */
+    Mdl->numPages = npages;
+
+    Mdl->priv = buf_desc;
+
+    Mdl->contiguous = (sgt->nents == 1) ? gcvTRUE : gcvFALSE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (pagearray)
+    {
+        gcmkOS_SAFE_FREE(os, pagearray);
+    }
+
+    if (sgt)
+    {
+        dma_buf_unmap_attachment(attachment, sgt, DMA_BIDIRECTIONAL);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+
+static void
+_DmabufFree(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl
+    )
+{
+    gcsDMABUF *buf_desc = Mdl->priv;
+    gckOS os = Allocator->os;
+    struct allocator_priv *priv = Allocator->privateData;
+
+    mutex_lock(&priv->lock);
+    list_del(&buf_desc->list);
+    mutex_unlock(&priv->lock);
+
+    dma_buf_unmap_attachment(buf_desc->attachment, buf_desc->sgt, DMA_BIDIRECTIONAL);
+
+    dma_buf_detach(buf_desc->dmabuf, buf_desc->attachment);
+
+    dma_buf_put(buf_desc->dmabuf);
+
+    gckOS_Free(os, buf_desc->pagearray);
+
+    gckOS_Free(os, buf_desc);
+}
+
+static void
+_DmabufUnmapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctUINT32 Size
+    )
+{
+    gcsDMABUF *buf_desc = Mdl->priv;
+    gctINT8_PTR userLogical = MdlMap->vmaAddr;
+
+    if (unlikely(current->mm == gcvNULL))
+    {
+        /* Do nothing if process is exiting. */
+        return;
+    }
+
+    userLogical -= buf_desc->sgt->sgl->offset;
+    vm_munmap((unsigned long)userLogical, Mdl->numPages << PAGE_SHIFT);
+}
+
+static gceSTATUS
+_DmabufMapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctBOOL Cacheable
+    )
+{
+    gcsDMABUF *buf_desc = Mdl->priv;
+    gctINT8_PTR userLogical = gcvNULL;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    userLogical = (gctINT8_PTR)vm_mmap(buf_desc->dmabuf->file,
+                    0L,
+                    Mdl->numPages << PAGE_SHIFT,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_NORESERVE,
+                    0);
+
+    if (IS_ERR(userLogical))
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+    userLogical += buf_desc->sgt->sgl->offset;
+
+    /* To make sure the mapping is created. */
+    if (access_ok(VERIFY_READ, userLogical, 4))
+    {
+        uint32_t mem;
+        get_user(mem, (uint32_t *)userLogical);
+
+        (void)mem;
+    }
+
+    MdlMap->vmaAddr = (gctPOINTER)userLogical;
+    MdlMap->cacheable = Cacheable;
+
+OnError:
+    if (gcmIS_ERROR(status) && userLogical)
+    {
+        _DmabufUnmapUser(Allocator, Mdl, MdlMap, Mdl->numPages << PAGE_SHIFT);
+    }
+    return status;
+}
+
+static gceSTATUS
+_DmabufMapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    OUT gctPOINTER *Logical
+    )
+{
+    /* Kernel doesn't acess video memory. */
+    return gcvSTATUS_NOT_SUPPORTED;
+
+}
+
+static gceSTATUS
+_DmabufUnmapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical
+    )
+{
+    /* Kernel doesn't acess video memory. */
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+static gceSTATUS
+_DmabufCache(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctSIZE_T Offset,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Bytes,
+    IN gceCACHEOPERATION Operation
+    )
+{
+    gcsDMABUF *buf_desc = Mdl->priv;
+    struct sg_table *sgt = buf_desc->sgt;
+    enum dma_data_direction dir;
+
+    switch (Operation)
+    {
+    case gcvCACHE_CLEAN:
+        dir = DMA_TO_DEVICE;
+        dma_sync_sg_for_device(galcore_device, sgt->sgl, sgt->nents, dir);
+        break;
+    case gcvCACHE_FLUSH:
+        dir = DMA_TO_DEVICE;
+        dma_sync_sg_for_device(galcore_device, sgt->sgl, sgt->nents, dir);
+        dir = DMA_FROM_DEVICE;
+        dma_sync_sg_for_cpu(galcore_device, sgt->sgl, sgt->nents, dir);
+        break;
+    case gcvCACHE_INVALIDATE:
+        dir = DMA_FROM_DEVICE;
+        dma_sync_sg_for_cpu(galcore_device, sgt->sgl, sgt->nents, dir);
+        break;
+    default:
+        return gcvSTATUS_INVALID_ARGUMENT;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+
+static gceSTATUS
+_DmabufPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctUINT32 Offset,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    gcsDMABUF *buf_desc = Mdl->priv;
+    gctUINT32 offsetInPage = Offset & ~PAGE_MASK;
+    gctUINT32 index = Offset / PAGE_SIZE;
+
+    *Physical = buf_desc->pagearray[index] + offsetInPage;
+
+
+    return gcvSTATUS_OK;
+}
+
+/* Default allocator operations. */
+static gcsALLOCATOR_OPERATIONS DmabufAllocatorOperations =
+{
+    .Attach             = _DmabufAttach,
+    .Free               = _DmabufFree,
+    .MapUser            = _DmabufMapUser,
+    .UnmapUser          = _DmabufUnmapUser,
+    .MapKernel          = _DmabufMapKernel,
+    .UnmapKernel        = _DmabufUnmapKernel,
+    .Cache              = _DmabufCache,
+    .Physical           = _DmabufPhysical,
+};
+
+static void
+_DmabufAllocatorDestructor(
+    gcsALLOCATOR *Allocator
+    )
+{
+    _DebugfsCleanup(Allocator);
+
+    if (Allocator->privateData)
+    {
+        kfree(Allocator->privateData);
+    }
+
+    kfree(Allocator);
+}
+
+/* Default allocator entry. */
+gceSTATUS
+_DmabufAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator;
+    struct allocator_priv *priv = NULL;
+
+    priv = kmalloc(sizeof (struct allocator_priv), GFP_KERNEL | gcdNOWARN);
+
+    if (!priv)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    mutex_init(&priv->lock);
+    INIT_LIST_HEAD(&priv->buf_list);
+
+    gcmkONERROR(
+        gckALLOCATOR_Construct(Os, &DmabufAllocatorOperations, &allocator));
+
+    allocator->capability = gcvALLOC_FLAG_DMABUF
+                          | gcvALLOC_FLAG_DMABUF_EXPORTABLE
+                          ;
+
+    /* Register private data. */
+    allocator->privateData = priv;
+    allocator->destructor  = _DmabufAllocatorDestructor;
+
+    _DebugfsInit(allocator, Parent);
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (priv)
+    {
+        kfree(priv);
+    }
+
+    return status;
+}
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_reserved_mem.c

@@ -0,0 +1,511 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+
+#define _GC_OBJ_ZONE    gcvZONE_OS
+
+/*
+ * reserved_mem is for contiguous pool, internal pool and external pool, etc.
+ */
+
+/* mdl private. */
+struct reserved_mem
+{
+    unsigned long start;
+    unsigned long size;
+    char name[32];
+    int  release;
+
+    /* Link together. */
+    struct list_head link;
+};
+
+/* allocator info. */
+struct reserved_mem_alloc
+{
+    /* Record allocated reserved memory regions. */
+    struct list_head region;
+    struct mutex lock;
+};
+
+static int reserved_mem_show(struct seq_file* m, void* data)
+{
+    struct list_head *pos;
+    gcsINFO_NODE *node = m->private;
+    gckALLOCATOR Allocator = node->device;
+    struct reserved_mem_alloc *alloc = Allocator->privateData;
+
+    list_for_each(pos, &alloc->region)
+    {
+        struct reserved_mem * res= list_entry(pos, struct reserved_mem, link);
+
+        seq_printf(m, "0x%08lx-0x%08lx : %s\n",
+            res->start, res->start + res->size -1, res->name);
+    }
+
+    return 0;
+}
+
+static gcsINFO info_list[] =
+{
+    {"reserved-mem", reserved_mem_show},
+};
+
+static void
+reserved_mem_debugfs_init(
+    IN gckALLOCATOR Allocator,
+    IN gckDEBUGFS_DIR Root
+    )
+{
+    gcmkVERIFY_OK(
+        gckDEBUGFS_DIR_Init(&Allocator->debugfsDir, Root->root, "reserved-mem"));
+
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_CreateFiles(
+        &Allocator->debugfsDir,
+        info_list,
+        gcmCOUNTOF(info_list),
+        Allocator
+        ));
+}
+
+static void
+reserved_mem_debugfs_cleanup(
+    IN gckALLOCATOR Allocator
+    )
+{
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(
+        &Allocator->debugfsDir,
+        info_list,
+        gcmCOUNTOF(info_list)
+        ));
+
+    gckDEBUGFS_DIR_Deinit(&Allocator->debugfsDir);
+}
+
+static gceSTATUS
+reserved_mem_attach(
+    IN gckALLOCATOR Allocator,
+    IN gcsATTACH_DESC_PTR Desc,
+    IN PLINUX_MDL Mdl
+    )
+{
+    struct reserved_mem_alloc *alloc = Allocator->privateData;
+    struct reserved_mem *res;
+    struct resource *region = NULL;
+
+    res = kzalloc(sizeof(struct reserved_mem), GFP_KERNEL | gcdNOWARN);
+
+    if (!res)
+        return gcvSTATUS_OUT_OF_MEMORY;
+
+    res->start = Desc->reservedMem.start;
+    res->size  = Desc->reservedMem.size;
+    strncpy(res->name, Desc->reservedMem.name, sizeof(res->name)-1);
+    res->release = 1;
+
+    if (!Desc->reservedMem.requested)
+    {
+        region = request_mem_region(res->start, res->size, res->name);
+
+        if (!region)
+        {
+            printk("request mem %s(0x%lx - 0x%lx) failed\n",
+                res->name, res->start, res->start + res->size - 1);
+
+            kfree(res);
+            return gcvSTATUS_OUT_OF_RESOURCES;
+        }
+
+        res->release = 1;
+    }
+
+    mutex_lock(&alloc->lock);
+    list_add(&res->link, &alloc->region);
+    mutex_unlock(&alloc->lock);
+
+    Mdl->priv = res;
+
+    return gcvSTATUS_OK;
+}
+
+static void
+reserved_mem_detach(
+    IN gckALLOCATOR Allocator,
+    IN OUT PLINUX_MDL Mdl
+    )
+{
+    struct reserved_mem_alloc *alloc = Allocator->privateData;
+    struct reserved_mem *res = Mdl->priv;
+
+    /* unlink from region list. */
+    mutex_lock(&alloc->lock);
+    list_del_init(&res->link);
+    mutex_unlock(&alloc->lock);
+
+    if (res->release)
+    {
+        release_mem_region(res->start, res->size);
+    }
+
+    kfree(res);
+}
+
+static gceSTATUS
+reserved_mem_mmap(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctBOOL Cacheable,
+    IN gctSIZE_T skipPages,
+    IN gctSIZE_T numPages,
+    IN struct vm_area_struct *vma
+    )
+{
+    struct reserved_mem *res = (struct reserved_mem*)Mdl->priv;
+    unsigned long pfn;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Allocator=%p Mdl=%p vma=%p", Allocator, Mdl, vma);
+
+    gcmkASSERT(skipPages + numPages <= Mdl->numPages);
+
+    pfn = (res->start >> PAGE_SHIFT) + skipPages;
+
+    /* Make this mapping non-cached. */
+    vma->vm_flags |= gcdVM_FLAGS;
+    vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+
+    if (remap_pfn_range(vma, vma->vm_start,
+            pfn, numPages << PAGE_SHIFT, vma->vm_page_prot) < 0)
+    {
+        gcmkTRACE(
+            gcvLEVEL_ERROR,
+            "%s(%d): remap_pfn_range error.",
+            __FUNCTION__, __LINE__
+            );
+
+        status = gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+static void
+reserved_mem_unmap_user(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctUINT32 Size
+    )
+{
+    if (unlikely(!current->mm))
+        return;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
+    if (vm_munmap((unsigned long)MdlMap->vmaAddr, (unsigned long)Size) < 0)
+    {
+        printk("%s: vm_munmap failed\n", __func__);
+    }
+#else
+    down_write(&current->mm->mmap_sem);
+    if (do_munmap(current->mm, (unsigned long)MdlMap->vmaAddr, (unsigned long)Size) < 0)
+    {
+        printk("%s: do_munmap failed\n", __func__);
+    }
+    up_write(&current->mm->mmap_sem);
+#endif
+}
+
+static gceSTATUS
+reserved_mem_map_user(
+    gckALLOCATOR Allocator,
+    PLINUX_MDL Mdl,
+    PLINUX_MDL_MAP MdlMap,
+    gctBOOL Cacheable
+    )
+{
+    struct reserved_mem *res = (struct reserved_mem*)Mdl->priv;
+    gctPOINTER userLogical = gcvNULL;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Allocator=%p Mdl=%p Cacheable=%d", Allocator, Mdl, Cacheable);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
+    userLogical = (gctPOINTER)vm_mmap(NULL, 0L, res->size,
+                PROT_READ | PROT_WRITE, MAP_SHARED | MAP_NORESERVE, 0);
+#else
+    down_write(&current->mm->mmap_sem);
+    userLogical = (gctPOINTER)do_mmap_pgoff(NULL, 0L, res->size,
+                PROT_READ | PROT_WRITE, MAP_SHARED, 0);
+    up_write(&current->mm->mmap_sem);
+#endif
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_OS,
+        "%s(%d): vmaAddr->%p for phys_addr->%p",
+        __FUNCTION__, __LINE__, userLogical, Mdl
+        );
+
+    if (IS_ERR(userLogical))
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): do_mmap_pgoff error",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    down_write(&current->mm->mmap_sem);
+    do
+    {
+        struct vm_area_struct *vma = find_vma(current->mm, (unsigned long)userLogical);
+        if (vma == gcvNULL)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_OS,
+                "%s(%d): find_vma error",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkERR_BREAK(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+
+        gcmkERR_BREAK(reserved_mem_mmap(Allocator, Mdl, gcvFALSE, 0, Mdl->numPages, vma));
+
+        MdlMap->vmaAddr = userLogical;
+        MdlMap->cacheable = gcvFALSE;
+        MdlMap->vma = vma;
+    }
+    while (gcvFALSE);
+    up_write(&current->mm->mmap_sem);
+
+OnError:
+    if (gcmIS_ERROR(status) && userLogical)
+    {
+        reserved_mem_unmap_user(Allocator, Mdl, userLogical, res->size);
+    }
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+reserved_mem_map_kernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    OUT gctPOINTER *Logical
+    )
+{
+    struct reserved_mem *res = Mdl->priv;
+    void *vaddr;
+
+    /* Should never run here now. */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)
+    vaddr = memremap(res->start, res->size, MEMREMAP_WC);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)
+    vaddr = memremap(res->start, res->size, MEMREMAP_WT);
+#else
+    vaddr = ioremap_nocache(res->start, res->size);
+#endif
+
+    if (!vaddr)
+    {
+        return gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    *Logical = vaddr;
+    return gcvSTATUS_OK;;
+}
+
+static gceSTATUS
+reserved_mem_unmap_kernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical
+    )
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)
+    memunmap((void *)Logical);
+#else
+    iounmap((void *)Logical);
+#endif
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+reserved_mem_cache_op(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctSIZE_T Offset,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Bytes,
+    IN gceCACHEOPERATION Operation
+    )
+{
+    /* Always WC or UC, safe to use mb. */
+    switch (Operation)
+    {
+    case gcvCACHE_CLEAN:
+    case gcvCACHE_FLUSH:
+        _MemoryBarrier();
+        break;
+    case gcvCACHE_INVALIDATE:
+        break;
+    default:
+        return gcvSTATUS_INVALID_ARGUMENT;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+reserved_mem_get_physical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctUINT32 Offset,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    struct reserved_mem *res = Mdl->priv;
+    *Physical = res->start + Offset;
+
+    return gcvSTATUS_OK;
+}
+
+static void
+reserved_mem_dtor(
+    gcsALLOCATOR *Allocator
+    )
+{
+    reserved_mem_debugfs_cleanup(Allocator);
+
+    if (Allocator->privateData)
+    {
+        kfree(Allocator->privateData);
+    }
+
+    kfree(Allocator);
+}
+
+/* GFP allocator operations. */
+static gcsALLOCATOR_OPERATIONS reserved_mem_ops = {
+    .Alloc              = NULL,
+    .Attach             = reserved_mem_attach,
+    .Free               = reserved_mem_detach,
+    .Mmap               = reserved_mem_mmap,
+    .MapUser            = reserved_mem_map_user,
+    .UnmapUser          = reserved_mem_unmap_user,
+    .MapKernel          = reserved_mem_map_kernel,
+    .UnmapKernel        = reserved_mem_unmap_kernel,
+    .Cache              = reserved_mem_cache_op,
+    .Physical           = reserved_mem_get_physical,
+};
+
+/* GFP allocator entry. */
+gceSTATUS
+_ReservedMemoryAllocatorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator = gcvNULL;
+    struct reserved_mem_alloc *alloc = NULL;
+
+    gcmkONERROR(
+        gckALLOCATOR_Construct(Os, &reserved_mem_ops, &allocator));
+
+    alloc = kzalloc(sizeof(*alloc), GFP_KERNEL | gcdNOWARN);
+
+    if (!alloc)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    INIT_LIST_HEAD(&alloc->region);
+    mutex_init(&alloc->lock);
+
+    /* Register private data. */
+    allocator->privateData = alloc;
+    allocator->destructor = reserved_mem_dtor;
+
+    reserved_mem_debugfs_init(allocator, Parent);
+
+    allocator->capability = gcvALLOC_FLAG_LINUX_RESERVED_MEM;
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (allocator)
+    {
+        kfree(allocator);
+    }
+    return status;
+}
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_user_memory.c

@@ -0,0 +1,854 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+#include <linux/scatterlist.h>
+
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+
+#define _GC_OBJ_ZONE gcvZONE_ALLOCATOR
+
+enum um_desc_type
+{
+    UM_PHYSICAL_MAP,
+    UM_PAGE_MAP,
+    UM_PFN_MAP,
+};
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION (2,6,24)
+struct sg_table
+{
+    struct scatterlist *sgl;
+    unsigned int nents;
+    unsigned int orig_nents;
+};
+#endif
+
+/* Descriptor of a user memory imported. */
+struct um_desc
+{
+    int type;
+
+    union
+    {
+        /* UM_PHYSICAL_MAP. */
+        unsigned long physical;
+
+        /* UM_PAGE_MAP. */
+        struct
+        {
+            struct page **pages;
+            struct sg_table sgt;
+        };
+
+        /* UM_PFN_MAP. */
+        struct
+        {
+            unsigned long *pfns;
+            int *refs;
+        };
+    };
+
+    /* contiguous chunks, does not include padding pages. */
+    int chunk_count;
+
+    unsigned long vm_flags;
+    unsigned long user_vaddr;
+    size_t size;
+    unsigned long offset;
+
+    size_t pageCount;
+    size_t extraPage;
+};
+
+static int import_physical_map(struct um_desc *um, unsigned long phys)
+{
+    um->type = UM_PHYSICAL_MAP;
+    um->physical = phys & PAGE_MASK;
+    um->chunk_count = 1;
+    return 0;
+}
+
+static int import_page_map(struct um_desc *um,
+                unsigned long addr, size_t page_count, size_t size)
+{
+    int i;
+    int result;
+    struct page **pages;
+
+    pages = kzalloc(page_count * sizeof(void *), GFP_KERNEL | gcdNOWARN);
+    if (!pages)
+        return -ENOMEM;
+
+    down_read(&current->mm->mmap_sem);
+
+    result = get_user_pages(
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
+            current,
+            current->mm,
+#endif
+            addr & PAGE_MASK,
+            page_count,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+            FOLL_WRITE,
+#else
+            1,
+            0,
+#endif
+            pages,
+            NULL);
+
+    up_read(&current->mm->mmap_sem);
+
+    if (result < page_count)
+    {
+        for (i = 0; i < result; i++)
+        {
+            if (pages[i])
+            {
+                put_page(pages[i]);
+            }
+        }
+
+        kfree(pages);
+        return -ENODEV;
+    }
+
+    um->chunk_count = 1;
+    for (i = 1; i < page_count; i++)
+    {
+        if (page_to_pfn(pages[i]) != page_to_pfn(pages[i - 1]) + 1)
+        {
+            ++um->chunk_count;
+        }
+    }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION (3,6,0) \
+    && (defined(ARCH_HAS_SG_CHAIN) || defined(CONFIG_ARCH_HAS_SG_CHAIN))
+    result = sg_alloc_table_from_pages(&um->sgt, pages, page_count,
+                    addr & ~PAGE_MASK, size, GFP_KERNEL | gcdNOWARN);
+
+#else
+    result = alloc_sg_list_from_pages(&um->sgt.sgl, pages, page_count,
+                    addr & ~PAGE_MASK, size, &um->sgt.nents);
+
+    um->sgt.orig_nents = um->sgt.nents;
+#endif
+    if (unlikely(result < 0))
+    {
+        printk("[galcore]: %s: sg_alloc_table_from_pages failed\n", __FUNCTION__);
+        goto error;
+    }
+
+    result = dma_map_sg(galcore_device, um->sgt.sgl, um->sgt.nents, DMA_TO_DEVICE);
+    if (unlikely(result != um->sgt.nents))
+    {
+        printk("[galcore]: %s: dma_map_sg failed\n", __FUNCTION__);
+        goto error;
+    }
+
+    um->type = UM_PAGE_MAP;
+    um->pages = pages;
+
+    return 0;
+
+error:
+#if LINUX_VERSION_CODE >= KERNEL_VERSION (3,6,0) \
+    && (defined(ARCH_HAS_SG_CHAIN) || defined(CONFIG_ARCH_HAS_SG_CHAIN))
+    sg_free_table(&um->sgt);
+#else
+    kfree(um->sgt.sgl);
+#endif
+
+    if (pages)
+    {
+        kfree(pages);
+    }
+    return result;
+}
+
+
+static int import_pfn_map(struct um_desc *um,
+                unsigned long addr, size_t pfn_count)
+{
+    int i;
+    struct vm_area_struct *vma;
+    unsigned long *pfns;
+    int *refs;
+
+    if (!current->mm)
+        return -ENOTTY;
+
+    down_read(&current->mm->mmap_sem);
+    vma = find_vma(current->mm, addr);
+    up_read(&current->mm->mmap_sem);
+
+    if (!vma)
+        return -ENOTTY;
+
+    pfns = kzalloc(pfn_count * sizeof(unsigned long), GFP_KERNEL | gcdNOWARN);
+
+    if (!pfns)
+        return -ENOMEM;
+
+    refs = kzalloc(pfn_count * sizeof(int), GFP_KERNEL | gcdNOWARN);
+
+    if (!refs)
+    {
+        kfree(pfns);
+        return -ENOMEM;
+    }
+
+    for (i = 0; i < pfn_count; i++)
+    {
+        spinlock_t *ptl;
+        pgd_t *pgd;
+        pud_t *pud;
+        pmd_t *pmd;
+        pte_t *pte;
+
+        pgd = pgd_offset(current->mm, addr);
+        if (pgd_none(*pgd) || pgd_bad(*pgd))
+            goto err;
+
+        pud = pud_offset(pgd, addr);
+        if (pud_none(*pud) || pud_bad(*pud))
+            goto err;
+
+        pmd = pmd_offset(pud, addr);
+        if (pmd_none(*pmd) || pmd_bad(*pmd))
+            goto err;
+
+        pte = pte_offset_map_lock(current->mm, pmd, addr, &ptl);
+        if (!pte)
+        {
+            spin_unlock(ptl);
+            goto err;
+        }
+
+        if (!pte_present(*pte))
+        {
+            pte_unmap_unlock(pte, ptl);
+            goto err;
+        }
+
+        pfns[i] = pte_pfn(*pte);
+        pte_unmap_unlock(pte, ptl);
+
+        /* Advance to next. */
+        addr += PAGE_SIZE;
+    }
+
+    for (i = 0; i < pfn_count; i++)
+    {
+        if (pfn_valid(pfns[i]))
+        {
+            struct page *page = pfn_to_page(pfns[i]);
+            refs[i] = get_page_unless_zero(page);
+        }
+    }
+
+    um->chunk_count = 1;
+    for (i = 1; i < pfn_count; i++)
+    {
+        if (pfns[i] != pfns[i - 1] + 1)
+        {
+            ++um->chunk_count;
+        }
+    }
+
+    um->type = UM_PFN_MAP;
+    um->pfns = pfns;
+    um->refs = refs;
+    return 0;
+
+err:
+    if (pfns)
+        kfree(pfns);
+
+    if (refs)
+        kfree(refs);
+
+    return -ENOTTY;
+}
+
+static gceSTATUS
+_Import(
+    IN gckOS Os,
+    IN gctPOINTER Memory,
+    IN gctUINT32 Physical,
+    IN gctSIZE_T Size,
+    IN struct um_desc * UserMemory
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    unsigned long vm_flags = 0;
+    struct vm_area_struct *vma = NULL;
+    unsigned long start, end, memory;
+    int result = 0;
+
+    gctSIZE_T extraPage;
+    gctSIZE_T pageCount, i;
+
+    gcmkHEADER_ARG("Os=0x%p Memory=%p Physical=0x%x Size=%lu", Os, Memory, Physical, Size);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL || Physical != ~0U);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+
+    memory = (unsigned long)Memory;
+
+    /* Get the number of required pages. */
+    end = (memory + Size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+    start = memory >> PAGE_SHIFT;
+    pageCount = end - start;
+
+    /* Allocate extra page to avoid cache overflow */
+#if gcdENABLE_2D
+    extraPage = 2;
+#else
+    extraPage = (((memory + gcmALIGN(Size + 64, 64) + PAGE_SIZE - 1) >> PAGE_SHIFT) > end) ? 1 : 0;
+#endif
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, _GC_OBJ_ZONE,
+        "%s(%d): pageCount: %d. extraPage: %d",
+        __FUNCTION__, __LINE__,
+        pageCount, extraPage
+        );
+
+    /* Overflow. */
+    if ((memory + Size) < memory)
+    {
+        gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
+        return gcvSTATUS_INVALID_ARGUMENT;
+    }
+
+    if (memory)
+    {
+        unsigned long vaddr = memory;
+
+        for (i = 0; i < pageCount; i++)
+        {
+            u32 data;
+
+            get_user(data, (u32 *)vaddr);
+            put_user(data, (u32 *)vaddr);
+            vaddr += PAGE_SIZE;
+
+            /* Fix QM crash with test_buffers */
+            if (vaddr > memory + Size - 4)
+            {
+                vaddr = memory + Size - 4;
+            }
+        }
+
+        vma = find_vma(current->mm, memory);
+
+        if (!vma)
+        {
+            /* No such memory, or across vmas. */
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+#ifdef CONFIG_ARM
+        /* coherent cache in case vivt or vipt-aliasing cache. */
+        __cpuc_flush_user_range(memory, memory + Size, vma->vm_flags);
+#endif
+
+        vm_flags = vma->vm_flags;
+        vaddr = vma->vm_end;
+
+        while (vaddr < memory + Size)
+        {
+            vma = find_vma(current->mm, vaddr);
+
+            if (!vma)
+            {
+                /* No such memory. */
+                gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+            }
+
+            if ((vma->vm_flags & VM_PFNMAP) != (vm_flags & VM_PFNMAP))
+            {
+                /* Can not support different map type: both PFN and PAGE detected. */
+                gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+            }
+
+            vaddr = vma->vm_end;
+        }
+    }
+
+    if (Physical != gcvINVALID_PHYSICAL_ADDRESS)
+    {
+        result = import_physical_map(UserMemory, Physical);
+    }
+    else
+    {
+        if (vm_flags & VM_PFNMAP)
+        {
+            result = import_pfn_map(UserMemory, memory, pageCount);
+        }
+        else
+        {
+            result = import_page_map(UserMemory, memory, pageCount, Size);
+        }
+    }
+
+    if (result == -EINVAL)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+    else if (result == -ENOMEM)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+    else if (result < 0)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    if(Os->device->platform->flagBits & gcvPLATFORM_FLAG_LIMIT_4G_ADDRESS )
+    {
+        gctPHYS_ADDR_T addr;
+
+        if (Physical != gcvINVALID_PHYSICAL_ADDRESS)
+        {
+            if(Physical >0xFFFFFFFFu || Physical + Size > 0xFFFFFFFFu )
+            {
+                gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+            }
+        }
+        else if (vm_flags & VM_PFNMAP)
+        {
+            for(i = 0; i < pageCount; i++)
+            {
+                addr =  UserMemory->pfns[i] << PAGE_SHIFT;
+                if( addr > 0xFFFFFFFFu)
+                {
+                    kfree(UserMemory->pfns);
+                    UserMemory->pfns = gcvNULL;
+                    kfree(UserMemory->refs) ;
+                    UserMemory->refs = gcvNULL;
+                    gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+                }
+            }
+        }
+        else
+        {
+            for (i = 0; i< pageCount; i++)
+            {
+                addr = page_to_phys(UserMemory->pages[i]);
+                if(addr > 0xFFFFFFFFu )
+                {
+                    kfree(UserMemory->pages);
+                    UserMemory->pages = gcvNULL;
+                    gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+                }
+            }
+        }
+    }
+
+    UserMemory->vm_flags = vm_flags;
+    UserMemory->user_vaddr = (unsigned long)Memory;
+    UserMemory->size  = Size;
+    UserMemory->offset = (Physical != gcvINVALID_PHYSICAL_ADDRESS)
+                       ? (Physical & ~PAGE_MASK)
+                       : (memory & ~PAGE_MASK);
+
+    UserMemory->pageCount = pageCount;
+    UserMemory->extraPage = extraPage;
+
+    if (extraPage && UserMemory->type == UM_PAGE_MAP)
+    {
+        /*Add the padding pages */
+        UserMemory->chunk_count++;
+    }
+
+    /* Success. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_UserMemoryAttach(
+    IN gckALLOCATOR Allocator,
+    IN gcsATTACH_DESC_PTR Desc,
+    IN PLINUX_MDL Mdl
+    )
+{
+    gceSTATUS status;
+    struct um_desc * userMemory = gcvNULL;
+
+    gckOS os = Allocator->os;
+
+    gcmkHEADER();
+
+    /* Handle is meangless for this importer. */
+    gcmkVERIFY_ARGUMENT(Desc != gcvNULL);
+
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(struct um_desc), (gctPOINTER *)&userMemory));
+
+    gckOS_ZeroMemory(userMemory, gcmSIZEOF(struct um_desc));
+
+    gcmkONERROR(_Import(os, Desc->userMem.memory, Desc->userMem.physical, Desc->userMem.size, userMemory));
+
+    Mdl->priv = userMemory;
+    Mdl->numPages = userMemory->pageCount + userMemory->extraPage;
+    Mdl->contiguous = (userMemory->chunk_count == 1);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (userMemory != gcvNULL)
+    {
+        gckOS_Free(os,(gctPOINTER)userMemory);
+    }
+    gcmkFOOTER();
+    return status;
+}
+
+static void release_physical_map(struct um_desc *um)
+{
+}
+
+static void release_page_map(struct um_desc *um)
+{
+    int i;
+
+    dma_unmap_sg(galcore_device, um->sgt.sgl, um->sgt.nents, DMA_TO_DEVICE);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION (3,6,0) \
+    && (defined(ARCH_HAS_SG_CHAIN) || defined(CONFIG_ARCH_HAS_SG_CHAIN))
+    sg_free_table(&um->sgt);
+#else
+    kfree(um->sgt.sgl);
+#endif
+
+    for (i = 0; i < um->pageCount; i++)
+    {
+        if (!PageReserved(um->pages[i]))
+        {
+             SetPageDirty(um->pages[i]);
+        }
+
+        put_page(um->pages[i]);
+    }
+
+    kfree(um->pages);
+}
+
+static void release_pfn_map(struct um_desc *um)
+{
+
+    int i;
+
+    for (i = 0; i < um->pageCount; i++)
+    {
+        if (pfn_valid(um->pfns[i]))
+        {
+            struct page *page = pfn_to_page(um->pfns[i]);
+            if (!PageReserved(page))
+            {
+                SetPageDirty(page);
+            }
+
+            if (um->refs[i])
+            {
+                put_page(page);
+            }
+        }
+    }
+
+    kfree(um->pfns);
+    kfree(um->refs);
+}
+
+static void
+_UserMemoryFree(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl
+    )
+{
+    gckOS os = Allocator->os;
+    struct um_desc *userMemory = Mdl->priv;
+
+    gcmkHEADER();
+
+    if (userMemory)
+    {
+        switch (userMemory->type)
+        {
+        case UM_PHYSICAL_MAP:
+            release_physical_map(userMemory);
+            break;
+        case UM_PAGE_MAP:
+            release_page_map(userMemory);
+            break;
+        case UM_PFN_MAP:
+            release_pfn_map(userMemory);
+            break;
+        }
+
+        gcmkOS_SAFE_FREE(os, userMemory);
+    }
+
+    gcmkFOOTER_NO();
+}
+
+static gceSTATUS
+_UserMemoryMapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctBOOL Cacheable
+    )
+{
+    struct um_desc *userMemory = Mdl->priv;
+
+    MdlMap->vmaAddr = (gctPOINTER)userMemory->user_vaddr;
+    MdlMap->cacheable = gcvTRUE;
+
+    return gcvSTATUS_OK;
+}
+
+static void
+_UserMemoryUnmapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctUINT32 Size
+    )
+{
+    return;
+}
+
+static gceSTATUS
+_UserMemoryMapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    OUT gctPOINTER *Logical
+    )
+{
+    /* Kernel doesn't acess video memory. */
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+static gceSTATUS
+_UserMemoryUnmapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical
+    )
+{
+    /* Kernel doesn't acess video memory. */
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+static gceSTATUS
+_UserMemoryCache(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctSIZE_T Offset,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Bytes,
+    IN gceCACHEOPERATION Operation
+    )
+{
+    struct um_desc *um = Mdl->priv;
+    enum dma_data_direction dir;
+
+    if (um->type != UM_PAGE_MAP)
+    {
+        _MemoryBarrier();
+        return gcvSTATUS_OK;
+    }
+
+#ifdef CONFIG_ARM
+    /* coherent cache in case vivt or vipt-aliasing cache. */
+    __cpuc_flush_user_range(um->user_vaddr,
+                            um->user_vaddr + um->size, um->vm_flags);
+#endif
+
+    switch (Operation)
+    {
+    case gcvCACHE_CLEAN:
+        dir = DMA_TO_DEVICE;
+        dma_sync_sg_for_device(galcore_device, um->sgt.sgl, um->sgt.nents, dir);
+        break;
+    case gcvCACHE_FLUSH:
+        dir = DMA_TO_DEVICE;
+        dma_sync_sg_for_device(galcore_device, um->sgt.sgl, um->sgt.nents, dir);
+        dir = DMA_FROM_DEVICE;
+        dma_sync_sg_for_cpu(galcore_device, um->sgt.sgl, um->sgt.nents, dir);
+        break;
+    case gcvCACHE_INVALIDATE:
+        dir = DMA_FROM_DEVICE;
+        dma_sync_sg_for_cpu(galcore_device, um->sgt.sgl, um->sgt.nents, dir);
+        break;
+    default:
+        return gcvSTATUS_INVALID_ARGUMENT;
+    }
+
+
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_UserMemoryPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctUINT32 Offset,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    gckOS os = Allocator->os;
+    struct um_desc *userMemory = Mdl->priv;
+    unsigned long offset = Offset + userMemory->offset;
+    gctUINT32 offsetInPage = offset & ~PAGE_MASK;
+    gctUINT32 index = offset / PAGE_SIZE;
+
+    if (index >= userMemory->pageCount)
+    {
+        if (index < userMemory->pageCount + userMemory->extraPage)
+        {
+            *Physical = page_to_phys(os->paddingPage);
+        }
+        else
+        {
+            return gcvSTATUS_INVALID_ARGUMENT;
+        }
+    }
+    else
+    {
+        switch (userMemory->type)
+        {
+        case UM_PHYSICAL_MAP:
+            *Physical = userMemory->physical + index * PAGE_SIZE;
+            break;
+        case UM_PAGE_MAP:
+            *Physical = page_to_phys(userMemory->pages[index]);
+            break;
+        case UM_PFN_MAP:
+            *Physical = userMemory->pfns[index] << PAGE_SHIFT;
+            break;
+        }
+    }
+
+    *Physical += offsetInPage;
+
+    return gcvSTATUS_OK;
+}
+
+static void
+_UserMemoryAllocatorDestructor(
+    gcsALLOCATOR *Allocator
+    )
+{
+    if (Allocator->privateData)
+    {
+        kfree(Allocator->privateData);
+    }
+
+    kfree(Allocator);
+}
+
+/* User memory allocator (importer) operations. */
+static gcsALLOCATOR_OPERATIONS UserMemoryAllocatorOperations =
+{
+    .Attach             = _UserMemoryAttach,
+    .Free               = _UserMemoryFree,
+    .MapUser            = _UserMemoryMapUser,
+    .UnmapUser          = _UserMemoryUnmapUser,
+    .MapKernel          = _UserMemoryMapKernel,
+    .UnmapKernel        = _UserMemoryUnmapKernel,
+    .Cache              = _UserMemoryCache,
+    .Physical           = _UserMemoryPhysical,
+};
+
+/* Default allocator entry. */
+gceSTATUS
+_UserMemoryAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator;
+
+    gcmkONERROR(
+        gckALLOCATOR_Construct(Os, &UserMemoryAllocatorOperations, &allocator));
+
+    allocator->destructor  = _UserMemoryAllocatorDestructor;
+
+    allocator->capability = gcvALLOC_FLAG_USERMEMORY;
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/allocator/freescale/gc_hal_kernel_allocator_array.h

@@ -0,0 +1,131 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_allocator_array_h_
+#define __gc_hal_kernel_allocator_array_h_
+
+extern gceSTATUS
+_GFPAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+
+extern gceSTATUS
+_UserMemoryAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+
+extern gceSTATUS
+_ReservedMemoryAllocatorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+
+#if LINUX_CMA_FSL
+extern gceSTATUS
+_CMAFSLAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+#endif
+
+#ifdef CONFIG_DMA_SHARED_BUFFER
+extern gceSTATUS
+_DmabufAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+#endif
+
+#ifndef NO_DMA_COHERENT
+extern gceSTATUS
+_DmaAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    );
+#endif
+
+gcsALLOCATOR_DESC allocatorArray[] =
+{
+    /* GFP allocator. */
+    gcmkDEFINE_ALLOCATOR_DESC("gfp", _GFPAlloctorInit),
+
+#if LINUX_CMA_FSL
+    gcmkDEFINE_ALLOCATOR_DESC("cmafsl", _CMAFSLAlloctorInit),
+#endif
+
+    /* User memory importer. */
+    gcmkDEFINE_ALLOCATOR_DESC("user", _UserMemoryAlloctorInit),
+
+#ifdef CONFIG_DMA_SHARED_BUFFER
+    /* Dmabuf allocator. */
+    gcmkDEFINE_ALLOCATOR_DESC("dmabuf", _DmabufAlloctorInit),
+#endif
+
+#ifndef NO_DMA_COHERENT
+    gcmkDEFINE_ALLOCATOR_DESC("dma", _DmaAlloctorInit),
+#endif
+
+    gcmkDEFINE_ALLOCATOR_DESC("reserved-mem", _ReservedMemoryAllocatorInit),
+};
+
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/allocator/freescale/gc_hal_kernel_allocator_cma.c

@@ -0,0 +1,603 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+#define _GC_OBJ_ZONE    gcvZONE_OS
+
+typedef struct _gcsCMA_PRIV * gcsCMA_PRIV_PTR;
+typedef struct _gcsCMA_PRIV {
+    atomic_t cmasize;
+    gctBOOL cmaLimitRequest;
+}
+gcsCMA_PRIV;
+
+struct mdl_cma_priv {
+    gctPOINTER kvaddr;
+    dma_addr_t physical;
+};
+
+static int gc_cma_usage_show(struct seq_file* m, void* data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckALLOCATOR Allocator = node->device;
+    gcsCMA_PRIV_PTR priv = Allocator->privateData;
+    long long size = (long long)atomic_read(&priv->cmasize);
+
+    seq_printf(m, "type        n pages        bytes\n");
+    seq_printf(m, "cma      %10llu %12llu\n", size, size * PAGE_SIZE);
+
+    return 0;
+}
+
+static gcsINFO InfoList[] =
+{
+    {"cmausage", gc_cma_usage_show},
+};
+
+static void
+_CMAAllocatorDebugfsInit(
+    IN gckALLOCATOR Allocator,
+    IN gckDEBUGFS_DIR Root
+    )
+{
+    gcmkVERIFY_OK(
+        gckDEBUGFS_DIR_Init(&Allocator->debugfsDir, Root->root, "cma"));
+
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_CreateFiles(
+        &Allocator->debugfsDir,
+        InfoList,
+        gcmCOUNTOF(InfoList),
+        Allocator
+        ));
+}
+
+static void
+_CMAAllocatorDebugfsCleanup(
+    IN gckALLOCATOR Allocator
+    )
+{
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(
+        &Allocator->debugfsDir,
+        InfoList,
+        gcmCOUNTOF(InfoList)
+        ));
+
+    gckDEBUGFS_DIR_Deinit(&Allocator->debugfsDir);
+}
+
+static gceSTATUS
+_CMAFSLAlloc(
+    IN gckALLOCATOR Allocator,
+    INOUT PLINUX_MDL Mdl,
+    IN gctSIZE_T NumPages,
+    IN gctUINT32 Flags
+    )
+{
+    gceSTATUS status;
+    u32 gfp = GFP_KERNEL | gcdNOWARN;
+    gcsCMA_PRIV_PTR priv = (gcsCMA_PRIV_PTR)Allocator->privateData;
+
+    struct mdl_cma_priv *mdl_priv=gcvNULL;
+    gckOS os = Allocator->os;
+
+    gcmkHEADER_ARG("Mdl=%p NumPages=0x%zx", Mdl, NumPages);
+
+    if (os->allocatorLimitMarker && !(Flags & gcvALLOC_FLAG_CMA_PREEMPT))
+    {
+        if (Flags & gcvALLOC_FLAG_CMA_LIMIT)
+        {
+            priv->cmaLimitRequest = gcvTRUE;
+        }
+        else if (priv->cmaLimitRequest == gcvTRUE)
+        {
+            gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+        }
+    }
+
+    gcmkONERROR(gckOS_Allocate(os, sizeof(struct mdl_cma_priv), (gctPOINTER *)&mdl_priv));
+    mdl_priv->kvaddr = gcvNULL;
+
+#if defined(CONFIG_ZONE_DMA32) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
+    if (Flags & gcvALLOC_FLAG_4GB_ADDR)
+    {
+        gfp |= __GFP_DMA32;
+    }
+#endif
+
+    mdl_priv->kvaddr = dma_alloc_writecombine(&os->device->platform->device->dev,
+            NumPages * PAGE_SIZE,
+            &mdl_priv->physical,
+            gfp);
+
+    if (mdl_priv->kvaddr == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    Mdl->priv = mdl_priv;
+    Mdl->dmaHandle = mdl_priv->physical;
+    atomic_add(NumPages, &priv->cmasize);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mdl_priv)
+    {
+        gckOS_Free(os, mdl_priv);
+    }
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_CMAFSLGetSGT(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctSIZE_T Offset,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER *SGT
+    )
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)
+    struct page ** pages = gcvNULL;
+    struct page * page = gcvNULL;
+    struct sg_table *sgt = NULL;
+    struct mdl_cma_priv *mdl_priv = (struct mdl_cma_priv*)Mdl->priv;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gctSIZE_T offset = Offset & ~PAGE_MASK; /* Offset to the first page */
+    gctINT skipPages = Offset >> PAGE_SHIFT;     /* skipped pages */
+    gctINT numPages = (PAGE_ALIGN(Offset + Bytes) >> PAGE_SHIFT) - skipPages;
+    gctINT i;
+
+    gcmkASSERT(Offset + Bytes <= Mdl->numPages << PAGE_SHIFT);
+
+    sgt = kmalloc(sizeof(struct sg_table), GFP_KERNEL | gcdNOWARN);
+    if (!sgt)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    pages = kmalloc(sizeof(struct page*) * numPages, GFP_KERNEL | gcdNOWARN);
+    if (!pages)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+#if !defined(phys_to_page)
+    page = virt_to_page(mdlPriv->kvaddr);
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0)
+    page = phys_to_page(mdlPriv->physical);
+#else
+    page = phys_to_page(dma_to_phys(&Allocator->os->device->platform->device->dev, mdl_priv->physical));
+#endif
+
+    for (i = 0; i < numPages; ++i)
+    {
+        pages[i] = nth_page(page, i + skipPages);
+    }
+
+    if (sg_alloc_table_from_pages(sgt, pages, numPages, offset, Bytes, GFP_KERNEL) < 0)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    *SGT = (gctPOINTER)sgt;
+
+OnError:
+    if (pages)
+    {
+        kfree(pages);
+    }
+
+    if (gcmIS_ERROR(status) && sgt)
+    {
+        kfree(sgt);
+    }
+
+    return status;
+#else
+    return gcvSTATUS_NOT_SUPPORTED;
+#endif
+}
+
+static void
+_CMAFSLFree(
+    IN gckALLOCATOR Allocator,
+    IN OUT PLINUX_MDL Mdl
+    )
+{
+    gckOS os = Allocator->os;
+    struct mdl_cma_priv *mdlPriv=(struct mdl_cma_priv *)Mdl->priv;
+    gcsCMA_PRIV_PTR priv = (gcsCMA_PRIV_PTR)Allocator->privateData;
+    dma_free_writecombine(&os->device->platform->device->dev,
+            Mdl->numPages * PAGE_SIZE,
+            mdlPriv->kvaddr,
+            mdlPriv->physical);
+     gckOS_Free(os, mdlPriv);
+    atomic_sub(Mdl->numPages, &priv->cmasize);
+}
+
+static gceSTATUS
+_CMAFSLMmap(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctBOOL Cacheable,
+    IN gctSIZE_T skipPages,
+    IN gctSIZE_T numPages,
+    IN struct vm_area_struct *vma
+    )
+{
+    gckOS os = Allocator->os;
+    struct mdl_cma_priv *mdlPriv = (struct mdl_cma_priv*)Mdl->priv;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Allocator=%p Mdl=%p vma=%p", Allocator, Mdl, vma);
+
+    gcmkASSERT(skipPages + numPages <= Mdl->numPages);
+
+    /* Now map all the vmalloc pages to this user address. */
+    if (Mdl->contiguous)
+    {
+        /* map kernel memory to user space.. */
+        if (dma_mmap_writecombine(&os->device->platform->device->dev,
+                vma,
+                (gctINT8_PTR)mdlPriv->kvaddr + (skipPages << PAGE_SHIFT),
+                mdlPriv->physical + (skipPages << PAGE_SHIFT),
+                numPages << PAGE_SHIFT) < 0)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): dma_mmap_attrs error",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+    }
+    else
+    {
+        gcmkFATAL("%s(%d): unexpected noncontiguous mdl\n");
+        gcmkONERROR(gcvSTATUS_HEAP_CORRUPTED);
+    }
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+static void
+_CMAFSLUnmapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctUINT32 Size
+    )
+{
+    if (unlikely(current->mm == gcvNULL))
+    {
+        /* Do nothing if process is exiting. */
+        return;
+    }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)
+    if (vm_munmap((unsigned long)MdlMap->vmaAddr, Size) < 0)
+    {
+        gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): vm_munmap failed",
+                __FUNCTION__, __LINE__
+                );
+    }
+#else
+    down_write(&current->mm->mmap_sem);
+    if (do_munmap(current->mm, (unsigned long)MdlMap->vmaAddr, Size) < 0)
+    {
+        gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): do_munmap failed",
+                __FUNCTION__, __LINE__
+                );
+    }
+    up_write(&current->mm->mmap_sem);
+#endif
+}
+
+static gceSTATUS
+_CMAFSLMapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctBOOL Cacheable
+    )
+{
+    gctPOINTER userLogical = gcvNULL;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Allocator=%p Mdl=%p Cacheable=%d", Allocator, Mdl, Cacheable);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
+    userLogical = (gctPOINTER)vm_mmap(gcvNULL,
+                    0L,
+                    Mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED | MAP_NORESERVE,
+                    0);
+#else
+    down_write(&current->mm->mmap_sem);
+    userLogical = (gctPOINTER)do_mmap_pgoff(gcvNULL,
+                    0L,
+                    Mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED,
+                    0);
+    up_write(&current->mm->mmap_sem);
+#endif
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_OS,
+        "%s(%d): vmaAddr->%p for phys_addr->%p",
+        __FUNCTION__, __LINE__, userLogical, Mdl
+        );
+
+    if (IS_ERR(userLogical))
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): do_mmap_pgoff error",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    down_write(&current->mm->mmap_sem);
+    do
+    {
+        struct vm_area_struct *vma = find_vma(current->mm, (unsigned long)userLogical);
+        if (vma == gcvNULL)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_OS,
+                "%s(%d): find_vma error",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkERR_BREAK(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+
+        gcmkERR_BREAK(_CMAFSLMmap(Allocator, Mdl, Cacheable, 0, Mdl->numPages, vma));
+        MdlMap->vmaAddr = userLogical;
+        MdlMap->cacheable = Cacheable;
+        MdlMap->vma = vma;
+    }
+    while (gcvFALSE);
+    up_write(&current->mm->mmap_sem);
+
+OnError:
+    if (gcmIS_ERROR(status) && userLogical)
+    {
+        _CMAFSLUnmapUser(Allocator, Mdl, userLogical, Mdl->numPages * PAGE_SIZE);
+    }
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_CMAMapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    OUT gctPOINTER *Logical
+    )
+{
+    struct mdl_cma_priv *mdl_priv=(struct mdl_cma_priv *)Mdl->priv;
+    *Logical =mdl_priv->kvaddr;
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_CMAUnmapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_CMACache(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctSIZE_T Offset,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Bytes,
+    IN gceCACHEOPERATION Operation
+    )
+{
+    switch (Operation)
+    {
+    case gcvCACHE_CLEAN:
+    case gcvCACHE_FLUSH:
+        _MemoryBarrier();
+        break;
+    case gcvCACHE_INVALIDATE:
+        break;
+    default:
+        return gcvSTATUS_INVALID_ARGUMENT;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_CMAPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctUINT32 Offset,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    struct mdl_cma_priv *mdl_priv=(struct mdl_cma_priv *)Mdl->priv;
+
+    *Physical = mdl_priv->physical + Offset;
+
+    return gcvSTATUS_OK;
+}
+
+static void
+_CMAAllocatorDestructor(
+    gcsALLOCATOR *Allocator
+    )
+{
+    _CMAAllocatorDebugfsCleanup(Allocator);
+
+    if (Allocator->privateData)
+    {
+        kfree(Allocator->privateData);
+    }
+
+    kfree(Allocator);
+}
+
+/* Default allocator operations. */
+static gcsALLOCATOR_OPERATIONS CMAFSLAllocatorOperations =
+{
+    .Alloc              = _CMAFSLAlloc,
+    .Free               = _CMAFSLFree,
+    .Mmap               = _CMAFSLMmap,
+    .MapUser            = _CMAFSLMapUser,
+    .UnmapUser          = _CMAFSLUnmapUser,
+    .MapKernel          = _CMAMapKernel,
+    .UnmapKernel        = _CMAUnmapKernel,
+    .Cache              = _CMACache,
+    .Physical           = _CMAPhysical,
+    .GetSGT             = _CMAFSLGetSGT,
+};
+
+/* Default allocator entry. */
+gceSTATUS
+_CMAFSLAlloctorInit(
+    IN gckOS Os,
+    IN gcsDEBUGFS_DIR *Parent,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator = gcvNULL;
+    gcsCMA_PRIV_PTR priv = gcvNULL;
+
+    gcmkONERROR(
+        gckALLOCATOR_Construct(Os, &CMAFSLAllocatorOperations, &allocator));
+
+    priv = kzalloc(gcmSIZEOF(gcsCMA_PRIV), GFP_KERNEL | gcdNOWARN);
+
+    if (!priv)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    atomic_set(&priv->cmasize, 0);
+
+    /* Register private data. */
+    allocator->privateData = priv;
+    allocator->destructor = _CMAAllocatorDestructor;
+
+    _CMAAllocatorDebugfsInit(allocator, Parent);
+
+    allocator->capability = gcvALLOC_FLAG_CONTIGUOUS
+                          | gcvALLOC_FLAG_DMABUF_EXPORTABLE
+#if defined(CONFIG_ZONE_DMA32) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
+                          | gcvALLOC_FLAG_4GB_ADDR
+#endif
+                          ;
+
+#if defined(CONFIG_ARM64)
+    Os->allocatorLimitMarker = (Os->device->baseAddress + totalram_pages * PAGE_SIZE) > 0x100000000;
+#else
+    Os->allocatorLimitMarker = gcvFALSE;
+#endif
+    priv->cmaLimitRequest = gcvFALSE;
+
+    if (Os->allocatorLimitMarker)
+    {
+        allocator->capability |= gcvALLOC_FLAG_CMA_LIMIT;
+    }
+
+    allocator->capability |= gcvALLOC_FLAG_CMA_PREEMPT;
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (allocator)
+    {
+        kfree(allocator);
+    }
+    return status;
+}
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_allocator.c

@@ -0,0 +1,260 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32)
+#include <linux/anon_inodes.h>
+#endif
+#include <linux/file.h>
+
+#include "gc_hal_kernel_allocator_array.h"
+#include "gc_hal_kernel_platform.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_OS
+
+
+/******************************************************************************\
+******************************** Debugfs Support *******************************
+\******************************************************************************/
+
+static gceSTATUS
+_AllocatorDebugfsInit(
+    IN gckOS Os
+    )
+{
+    gceSTATUS status;
+    gckGALDEVICE device = Os->device;
+
+    gckDEBUGFS_DIR dir = &Os->allocatorDebugfsDir;
+
+    gcmkONERROR(gckDEBUGFS_DIR_Init(dir, device->debugfsDir.root, "allocators"));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+static void
+_AllocatorDebugfsCleanup(
+    IN gckOS Os
+    )
+{
+    gckDEBUGFS_DIR dir = &Os->allocatorDebugfsDir;
+
+    gckDEBUGFS_DIR_Deinit(dir);
+}
+
+/***************************************************************************\
+************************ Allocator management *******************************
+\***************************************************************************/
+
+gceSTATUS
+gckOS_ImportAllocators(
+    gckOS Os
+    )
+{
+    gceSTATUS status;
+    gctUINT i;
+    gckALLOCATOR allocator;
+
+    _AllocatorDebugfsInit(Os);
+
+    INIT_LIST_HEAD(&Os->allocatorList);
+
+    for (i = 0; i < gcmCOUNTOF(allocatorArray); i++)
+    {
+        if (allocatorArray[i].construct)
+        {
+            /* Construct allocator. */
+            status = allocatorArray[i].construct(Os, &Os->allocatorDebugfsDir, &allocator);
+
+            if (gcmIS_ERROR(status))
+            {
+                gcmkPRINT("["DEVICE_NAME"]: Can't construct allocator(%s)",
+                          allocatorArray[i].name);
+
+                continue;
+            }
+
+            allocator->name = allocatorArray[i].name;
+
+            list_add_tail(&allocator->link, &Os->allocatorList);
+        }
+    }
+
+#if gcdDEBUG
+    list_for_each_entry(allocator, &Os->allocatorList, link)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_WARNING, gcvZONE_OS,
+            "%s(%d) Allocator: %s",
+            __FUNCTION__, __LINE__,
+            allocator->name
+            );
+    }
+#endif
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_FreeAllocators(
+    gckOS Os
+    )
+{
+    gckALLOCATOR allocator;
+    gckALLOCATOR temp;
+
+    list_for_each_entry_safe(allocator, temp, &Os->allocatorList, link)
+    {
+        list_del(&allocator->link);
+
+        /* Destroy allocator. */
+        allocator->destructor(allocator);
+    }
+
+    _AllocatorDebugfsCleanup(Os);
+
+    return gcvSTATUS_OK;
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION (3,6,0) \
+    || (!defined (ARCH_HAS_SG_CHAIN) && !defined (CONFIG_ARCH_HAS_SG_CHAIN))
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
+static inline void sg_set_page(struct scatterlist *sg, struct page *page,
+                   unsigned int len, unsigned int offset)
+{
+    sg->page = page;
+    sg->offset = offset;
+    sg->length = len;
+}
+
+static inline void sg_mark_end(struct scatterlist *sg)
+{
+    (void)sg;
+}
+#  endif
+
+int
+alloc_sg_list_from_pages(
+    struct scatterlist **sgl,
+    struct page **pages,
+    unsigned int  n_pages,
+    unsigned long offset,
+    unsigned long size,
+    unsigned int  *nents
+    )
+{
+    unsigned int chunks;
+    unsigned int i;
+    unsigned int cur_page;
+    struct scatterlist *s;
+
+    chunks = 1;
+
+    for (i = 1; i < n_pages; ++i)
+    {
+        if (page_to_pfn(pages[i]) != page_to_pfn(pages[i - 1]) + 1)
+        {
+            ++chunks;
+        }
+    }
+
+    s = kzalloc(sizeof(struct scatterlist) * chunks, GFP_KERNEL);
+    if (unlikely(!s))
+    {
+        return -ENOMEM;
+    }
+
+    *sgl = s;
+    *nents = chunks;
+
+    cur_page = 0;
+
+    for (i = 0; i < chunks; i++, s++)
+    {
+        unsigned long chunk_size;
+        unsigned int j;
+
+        for (j = cur_page + 1; j < n_pages; j++)
+        {
+            if (page_to_pfn(pages[j]) != page_to_pfn(pages[j - 1]) + 1)
+            {
+                break;
+            }
+        }
+
+        chunk_size = ((j - cur_page) << PAGE_SHIFT) - offset;
+        sg_set_page(s, pages[cur_page], min(size, chunk_size), offset);
+        size -= chunk_size;
+        offset = 0;
+        cur_page = j;
+    }
+
+    sg_mark_end(s - 1);
+
+    return 0;
+}
+#endif
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_allocator.h

@@ -0,0 +1,572 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_allocator_h_
+#define __gc_hal_kernel_allocator_h_
+
+#include "gc_hal_kernel_linux.h"
+#include <linux/slab.h>
+#include <linux/mm_types.h>
+
+typedef struct _gcsALLOCATOR * gckALLOCATOR;
+typedef union _gcsATTACH_DESC * gcsATTACH_DESC_PTR;
+
+typedef struct _gcsALLOCATOR_OPERATIONS
+{
+    /**************************************************************************
+    **
+    ** Alloc
+    **
+    ** Allocte memory, request size is page aligned.
+    **
+    ** INPUT:
+    **
+    **    gckALLOCATOR Allocator
+    **        Pointer to an gckALLOCATOER object.
+    **
+    **    PLINUX_Mdl
+    **        Pointer to Mdl whichs stores information
+    **        about allocated memory.
+    **
+    **    gctSIZE_T NumPages
+    **        Number of pages need to allocate.
+    **
+    **    gctUINT32 Flag
+    **        Allocation option.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    gceSTATUS
+    (*Alloc)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctSIZE_T NumPages,
+        IN gctUINT32 Flag
+        );
+
+    /**************************************************************************
+    **
+    ** Free
+    **
+    ** Free memory.
+    **
+    ** INPUT:
+    **
+    **     gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **     PLINUX_MDL Mdl
+    **          Mdl which stores information.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    void
+    (*Free)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl
+        );
+
+    /**************************************************************************
+    **
+    ** Mmap
+    **
+    ** Map a page range of the memory to user space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl.
+    **
+    **      gctSIZE_T skipPages
+    **          Number of page to be skipped from beginning of this memory.
+    **
+    **      gctSIZE_T numPages
+    **          Number of pages to be mapped from skipPages.
+    **
+    ** INOUT:
+    **
+    **      struct vm_area_struct *vma
+    **          Pointer to VMM memory area.
+    **
+    */
+    gceSTATUS
+    (*Mmap)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctBOOL Cacheable,
+        IN gctSIZE_T skipPages,
+        IN gctSIZE_T numPages,
+        IN struct vm_area_struct *vma
+        );
+
+    /**************************************************************************
+    **
+    ** MapUser
+    **
+    ** Map memory to user space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl.
+    **
+    **      gctBOOL Cacheable
+    **          Whether this mapping is cacheable.
+    **
+    ** OUTPUT:
+    **
+    **      gctPOINTER * UserLogical
+    **          Pointer to user logical address.
+    **
+    **      Nothing.
+    **
+    */
+    gceSTATUS
+    (*MapUser)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN PLINUX_MDL_MAP MdlMap,
+        IN gctBOOL Cacheable
+        );
+
+    /**************************************************************************
+    **
+    ** UnmapUser
+    **
+    ** Unmap address from user address space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      gctPOINTER Logical
+    **          Address to be unmap
+    **
+    **      gctUINT32 Size
+    **          Size of address space
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    void
+    (*UnmapUser)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN PLINUX_MDL_MAP MdlMap,
+        IN gctUINT32 Size
+        );
+
+    /**************************************************************************
+    **
+    ** MapKernel
+    **
+    ** Map memory to kernel space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    ** OUTPUT:
+    **      gctPOINTER * Logical
+    **          Mapped kernel address.
+    */
+    gceSTATUS
+    (*MapKernel)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        OUT gctPOINTER *Logical
+        );
+
+    /**************************************************************************
+    **
+    ** UnmapKernel
+    **
+    ** Unmap memory from kernel space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    **      gctPOINTER Logical
+    **          Mapped kernel address.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    gceSTATUS
+    (*UnmapKernel)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctPOINTER Logical
+        );
+
+    /**************************************************************************
+    **
+    ** Cache
+    **
+    ** Maintain cache coherency.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    **      gctSIZE_T Offset
+    **          Offset to this memory block
+    **
+    **      gctPOINTER Logical
+    **          Logical address, could be user address or kernel address
+    **
+    **      gctUINT32 Bytes
+    **          Size of memory region.
+    **
+    **      gceCACHEOPERATION Opertaion
+    **          Cache operation.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    gceSTATUS (*Cache)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctSIZE_T Offset,
+        IN gctPOINTER Logical,
+        IN gctUINT32 Bytes,
+        IN gceCACHEOPERATION Operation
+        );
+
+    /**************************************************************************
+    **
+    ** Physical
+    **
+    ** Get physical address from a offset in memory region.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    **      gctUINT32 Offset
+    **          Offset in this memory region.
+    **
+    ** OUTPUT:
+    **      gctUINT32_PTR Physical
+    **          Physical address.
+    **
+    */
+    gceSTATUS (*Physical)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctUINT32 Offset,
+        OUT gctPHYS_ADDR_T * Physical
+        );
+
+    /**************************************************************************
+    **
+    ** Attach
+    **
+    ** Import memory allocated by an external allocator.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      gctUINT32 Handle
+    **          Handle of the memory.
+    **
+    ** OUTPUT:
+    **      None.
+    **
+    */
+    gceSTATUS (*Attach)(
+        IN gckALLOCATOR Allocator,
+        IN gcsATTACH_DESC_PTR Desc,
+        OUT PLINUX_MDL Mdl
+        );
+
+    /**************************************************************************
+    **
+    ** GetSGT
+    **
+    ** Get scatter-gather table from a range of the memory.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      gctUINT32 Handle
+    **          Handle of the memory.
+    **
+    **      gctSIZE_T Offset
+    **          Offset to the beginning of this mdl.
+    **
+    **      gctSIZE_T Bytes
+    **          Total bytes form Offset.
+    **
+    ** OUTPUT:
+    **      gctPOINTER *SGT
+    **          scatter-gather table
+    **
+    */
+    gceSTATUS (*GetSGT)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctSIZE_T Offset,
+        IN gctSIZE_T Bytes,
+        OUT gctPOINTER *SGT
+        );
+}
+gcsALLOCATOR_OPERATIONS;
+
+typedef struct _gcsALLOCATOR
+{
+    /* Pointer to gckOS Object. */
+    gckOS                     os;
+
+    /* Name. */
+    gctSTRING                 name;
+
+    /* Operations. */
+    gcsALLOCATOR_OPERATIONS * ops;
+
+    /* Capability of this allocator. */
+    gctUINT32                 capability;
+
+    /* Debugfs entry of this allocator. */
+    gcsDEBUGFS_DIR            debugfsDir;
+
+    /* Private data used by customer allocator. */
+    void *                    privateData;
+
+    /* Allocator destructor. */
+    void                      (*destructor)(struct _gcsALLOCATOR *);
+
+    struct list_head          link;
+}
+gcsALLOCATOR;
+
+typedef struct _gcsALLOCATOR_DESC
+{
+    /* Name of a allocator. */
+    char *                    name;
+
+    /* Entry function to construct a allocator. */
+    gceSTATUS                 (*construct)(gckOS, gcsDEBUGFS_DIR *, gckALLOCATOR *);
+}
+gcsALLOCATOR_DESC;
+
+typedef union _gcsATTACH_DESC
+{
+    /* gcvALLOC_FLAG_DMABUF */
+    struct
+    {
+        gctPOINTER              dmabuf;
+    }
+    dmaBuf;
+
+    /* gcvALLOC_FLAG_USERMEMORY */
+    struct
+    {
+        gctPOINTER              memory;
+        gctPHYS_ADDR_T          physical;
+        gctSIZE_T               size;
+    }
+    userMem;
+
+    /* gcvALLOC_FLAG_EXTERNAL_MEMORY */
+    struct
+    {
+        gcsEXTERNAL_MEMORY_INFO info;
+    }
+    externalMem;
+
+    /* Reserved memory. */
+    struct
+    {
+        unsigned long           start;
+        unsigned long           size;
+        const char *            name;
+        int                     requested;
+    }
+    reservedMem;
+}
+gcsATTACH_DESC;
+
+/*
+* Helpers
+*/
+
+/* Fill a gcsALLOCATOR_DESC structure. */
+#define gcmkDEFINE_ALLOCATOR_DESC(Name, Construct) \
+    { \
+        .name      = Name, \
+        .construct = Construct, \
+    }
+
+/* Construct a allocator. */
+static inline gceSTATUS
+gckALLOCATOR_Construct(
+    IN gckOS Os,
+    IN gcsALLOCATOR_OPERATIONS * Operations,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator;
+
+    gcmkASSERT(Allocator != gcvNULL);
+    gcmkASSERT
+        (  Operations
+        && (Operations->Alloc || Operations->Attach)
+        && (Operations->Free)
+        && Operations->MapUser
+        && Operations->UnmapUser
+        && Operations->MapKernel
+        && Operations->UnmapKernel
+        && Operations->Cache
+        && Operations->Physical
+        );
+
+    allocator = kzalloc(sizeof(gcsALLOCATOR), GFP_KERNEL | gcdNOWARN);
+    if (unlikely(!allocator))
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Record os. */
+    allocator->os = Os;
+
+    /* Set operations. */
+    allocator->ops = Operations;
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION (3,6,0) \
+    || (!defined (ARCH_HAS_SG_CHAIN) && !defined (CONFIG_ARCH_HAS_SG_CHAIN))
+int
+alloc_sg_list_from_pages(
+    struct scatterlist **sgl,
+    struct page **pages,
+    unsigned int  n_pages,
+    unsigned long offset,
+    unsigned long size,
+    unsigned int  *nents
+    );
+#endif
+
+/*
+    How to implement customer allocator
+
+    Build in customer alloctor
+
+        It is recommanded that customer allocator is implmented in independent
+        source file(s) which is specified by CUSOMTER_ALLOCATOR_OBJS in Kbuld.
+
+    Register gcsALLOCATOR
+
+        For each customer specified allocator, a desciption entry must be added
+        to allocatorArray defined in gc_hal_kernel_allocator_array.h.
+
+        An entry in allocatorArray is a gcsALLOCATOR_DESC structure which describes
+        name and constructor of a gckALLOCATOR object.
+
+
+    Implement gcsALLOCATOR_DESC.init()
+
+        In gcsALLOCATOR_DESC.init(), gckALLOCATOR_Construct should be called
+        to create a gckALLOCATOR object, customer specified private data can
+        be put in gcsALLOCATOR.privateData.
+
+
+    Implement gcsALLOCATOR_OPERATIONS
+
+        When call gckALLOCATOR_Construct to create a gckALLOCATOR object, a
+        gcsALLOCATOR_OPERATIONS structure must be provided whose all members
+        implemented.
+
+*/
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debug.h

@@ -0,0 +1,151 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_debug_h_
+#define __gc_hal_kernel_debug_h_
+
+#include <gc_hal_kernel_linux.h>
+#include <linux/spinlock.h>
+#include <linux/time.h>
+#include <stdarg.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)
+#include <linux/nmi.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+****************************** OS-dependent Macros *****************************
+\******************************************************************************/
+
+typedef va_list gctARGUMENTS;
+
+#define gcmkARGUMENTS_START(Arguments, Pointer) \
+    va_start(Arguments, Pointer)
+
+#define gcmkARGUMENTS_END(Arguments) \
+    va_end(Arguments)
+
+#define gcmkARGUMENTS_ARG(Arguments, Type) \
+    va_arg(Arguments, Type)
+
+#define gcmkDECLARE_MUTEX(__mutex__) \
+    DEFINE_MUTEX(__mutex__); \
+
+#define gcmkMUTEX_LOCK(__mutex__) \
+    mutex_lock(&__mutex__);
+
+#define gcmkMUTEX_UNLOCK(__mutex__) \
+    mutex_unlock(&__mutex__);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+#   define gcmkGETPROCESSID() \
+        task_tgid_vnr(current)
+#else
+#   define gcmkGETPROCESSID() \
+        current->tgid
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+#   define gcmkGETTHREADID() \
+        task_pid_vnr(current)
+#else
+#   define gcmkGETTHREADID() \
+        current->pid
+#endif
+
+#define gcmkOUTPUT_STRING(String) \
+    if (gckDEBUGFS_IsEnabled()) \
+    { \
+        while (-ERESTARTSYS == gckDEBUGFS_Print(String)); \
+    } \
+    else \
+    { \
+        printk(String); \
+    }
+
+#define gcmkSPRINTF(Destination, Size, Message, Value) \
+    snprintf(Destination, Size, Message, Value)
+
+#define gcmkSPRINTF2(Destination, Size, Message, Value1, Value2) \
+    snprintf(Destination, Size, Message, Value1, Value2)
+
+#define gcmkSPRINTF3(Destination, Size, Message, Value1, Value2, Value3) \
+    snprintf(Destination, Size, Message, Value1, Value2, Value3)
+
+#define gcmkVSPRINTF(Destination, Size, Message, Arguments) \
+    vsnprintf(Destination, Size, Message, *((va_list*)Arguments))
+
+#define gcmkSTRCATSAFE(Destination, Size, String) \
+    strncat(Destination, String, (Size) - 1)
+
+#define gcmkMEMCPY(Destination, Source, Size) \
+    memcpy(Destination, Source, Size)
+
+#define gcmkSTRLEN(String) \
+    strlen(String)
+
+/* If not zero, forces data alignment in the variable argument list
+   by its individual size. */
+#define gcdALIGNBYSIZE      1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_debug_h_ */

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debugfs.c

@@ -0,0 +1,965 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifdef MODULE
+#include <linux/module.h>
+#endif
+#include <linux/init.h>
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#ifdef MODVERSIONS
+#include <linux/modversions.h>
+#endif
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/vmalloc.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/poll.h>
+#include <asm/uaccess.h>
+#include <linux/completion.h>
+#include <linux/seq_file.h>
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel.h"
+#include "gc_hal_kernel_debug.h"
+
+/*
+   Prequsite:
+
+   1) Debugfs feature must be enabled in the kernel.
+       1.a) You can enable this, in the compilation of the uImage, all you have to do is, In the "make menuconfig" part,
+       you have to enable the debugfs in the kernel hacking part of the menu.
+
+   HOW TO USE:
+   1) insert the driver with the following option logFileSize, Ex: insmod galcore.ko ...... logFileSize=10240
+   This gives a circular buffer of 10 MB
+
+   2)Usually after inserting the driver, the debug file system is mounted under /sys/kernel/debug/
+
+        2.a)If the debugfs is not mounted, you must do "mount -t debugfs none /sys/kernel/debug"
+
+   3) To read what is being printed in the debugfs file system:
+        Ex : cat /sys/kernel/debug/gc/galcore_trace
+
+   4)To write into the debug file system from user side :
+        Ex: echo "hello" > cat /sys/kernel/debug/gc/galcore_trace
+
+   5)To write into debugfs from kernel side, Use the function called gckDEBUGFS_Print
+
+   How to Get Video Memory Usage:
+   1) Select a process whose video memory usage can be dump, no need to reset it until <pid> is needed to be change.
+        echo <pid>  > /sys/kernel/debug/gc/vidmem
+
+   2) Get video memory usage.
+        cat /sys/kernel/debug/gc/vidmem
+
+   USECASE Kernel Dump:
+
+   1) Go to /hal/inc/gc_hal_options.h, and enable the following flags:
+        - #   define gcdDUMP                              1
+        - #   define gcdDUMP_IN_KERNEL          1
+        - #   define gcdDUMP_COMMAND          1
+
+    2) Go to /hal/kernel/gc_hal_kernel_command.c and disable the following flag
+        -#define gcdSIMPLE_COMMAND_DUMP  0
+
+    3) Compile the driver
+    4) insmod it with the logFileSize option
+    5) Run an application
+    6) You can get the dump by cat /sys/kernel/debug/gpu/galcore_trace
+
+ */
+
+/**/
+typedef va_list gctDBGARGS ;
+#define gcmkARGS_START(argument, pointer)   va_start(argument, pointer)
+#define gcmkARGS_END(argument)                        va_end(argument)
+
+#define gcmkDEBUGFS_PRINT(ArgumentSize, Message) \
+  { \
+      gctDBGARGS __arguments__; \
+      gcmkARGS_START(__arguments__, Message); \
+      _debugfs_res = _DebugFSPrint(ArgumentSize, Message, &__arguments__);\
+      gcmkARGS_END(__arguments__); \
+  }
+
+
+static DEFINE_SPINLOCK(traceLock);
+
+/* Debug File System Node Struct. */
+struct _gcsDEBUGFS_Node
+{
+    /*wait queues for read and write operations*/
+#if defined(DECLARE_WAIT_QUEUE_HEAD)
+    wait_queue_head_t read_q , write_q ;
+#else
+    struct wait_queue *read_q , *write_q ;
+#endif
+    struct dentry *parent ; /*parent directory*/
+    struct dentry *filen ; /*filename*/
+    struct semaphore sem ; /* mutual exclusion semaphore */
+    char *data ; /* The circular buffer data */
+    int size ; /* Size of the buffer pointed to by 'data' */
+    int refcount ; /* Files that have this buffer open */
+    int read_point ; /* Offset in circ. buffer of oldest data */
+    int write_point ; /* Offset in circ. buffer of newest data */
+    int offset ; /* Byte number of read_point in the stream */
+    struct _gcsDEBUGFS_Node *next ;
+
+    caddr_t temp;
+    int tempSize;
+};
+
+/* amount of data in the queue */
+#define gcmkNODE_QLEN(node) ( (node)->write_point >= (node)->read_point ? \
+         (node)->write_point - (node)->read_point : \
+         (node)->size - (node)->read_point + (node)->write_point)
+
+/* byte number of the last byte in the queue */
+#define gcmkNODE_FIRST_EMPTY_BYTE(node) ((node)->offset + gcmkNODE_QLEN(node))
+
+/*Synchronization primitives*/
+#define gcmkNODE_READQ(node) (&((node)->read_q))
+#define gcmkNODE_WRITEQ(node) (&((node)->write_q))
+#define gcmkNODE_SEM(node) (&((node)->sem))
+
+/*Utilities*/
+#define gcmkMIN(x, y) ((x) < (y) ? (x) : y)
+
+/*Debug File System Struct*/
+typedef struct _gcsDEBUGFS_
+{
+    gcsDEBUGFS_Node* linkedlist ;
+    gcsDEBUGFS_Node* currentNode ;
+    int isInited ;
+} gcsDEBUGFS_ ;
+
+/*debug file system*/
+static gcsDEBUGFS_ gc_dbgfs ;
+
+static int gc_debugfs_open(struct inode *inode, struct file *file)
+{
+    gcsINFO_NODE *node = inode->i_private;
+
+    return single_open(file, node->info->show, node);
+}
+
+static ssize_t
+gc_debugfs_write(
+    struct file *file,
+    const char __user *buf,
+    size_t count,
+    loff_t *pos
+    )
+{
+    struct seq_file *s = file->private_data;
+    gcsINFO_NODE *node = s->private;
+    gcsINFO *info = node->info;
+
+    if (info->write)
+    {
+        info->write(buf, count, node);
+    }
+
+    return count;
+}
+
+static const struct file_operations gc_debugfs_operations = {
+    .owner = THIS_MODULE,
+    .open = gc_debugfs_open,
+    .write = gc_debugfs_write,
+    .read = seq_read,
+    .llseek = seq_lseek,
+    .release = single_release,
+};
+
+gceSTATUS
+gckDEBUGFS_DIR_Init(
+    IN gckDEBUGFS_DIR Dir,
+    IN struct dentry *root,
+    IN gctCONST_STRING Name
+    )
+{
+    Dir->root = debugfs_create_dir(Name, root);
+
+    if (!Dir->root)
+    {
+        return gcvSTATUS_NOT_SUPPORTED;
+    }
+
+    INIT_LIST_HEAD(&Dir->nodeList);
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckDEBUGFS_DIR_CreateFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count,
+    IN gctPOINTER Data
+    )
+{
+    int i;
+    gcsINFO_NODE * node;
+    gceSTATUS status;
+
+    for (i = 0; i < count; i++)
+    {
+        umode_t mode = 0;
+
+        /* Create a node. */
+        node = (gcsINFO_NODE *)kzalloc(sizeof(gcsINFO_NODE), GFP_KERNEL);
+
+        node->info   = &List[i];
+        node->device = Data;
+
+        mode |= List[i].show  ? S_IRUGO : 0;
+        mode |= List[i].write ? S_IWUSR : 0;
+
+        node->entry = debugfs_create_file(
+            List[i].name, mode, Dir->root, node, &gc_debugfs_operations);
+
+        if (!node->entry)
+        {
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+
+        list_add(&(node->head), &(Dir->nodeList));
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(Dir, List, count));
+    return status;
+}
+
+gceSTATUS
+gckDEBUGFS_DIR_RemoveFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count
+    )
+{
+    int i;
+    gcsINFO_NODE * node;
+    gcsINFO_NODE * temp;
+
+    for (i = 0; i < count; i++)
+    {
+        list_for_each_entry_safe(node, temp, &Dir->nodeList, head)
+        {
+            if (node->info == &List[i])
+            {
+                debugfs_remove(node->entry);
+                list_del(&node->head);
+                kfree(node);
+            }
+        }
+    }
+
+    return gcvSTATUS_OK;
+}
+
+void
+gckDEBUGFS_DIR_Deinit(
+    IN gckDEBUGFS_DIR Dir
+    )
+{
+    if (Dir->root != NULL)
+    {
+        debugfs_remove(Dir->root);
+        Dir->root = NULL;
+    }
+}
+
+/*******************************************************************************
+ **
+ **        READ & WRITE FUNCTIONS (START)
+ **
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ **  _ReadFromNode
+ **
+ **    1) reading bytes out of a circular buffer with wraparound.
+ **    2)returns caddr_t, pointer to data read, which the caller must free.
+ **    3) length is (a pointer to) the number of bytes to be read, which will be set by this function to
+ **        be the number of bytes actually returned
+ **
+ *******************************************************************************/
+static caddr_t
+_ReadFromNode (
+                gcsDEBUGFS_Node* Node ,
+                size_t *Length ,
+                loff_t *Offset
+                )
+{
+    caddr_t retval ;
+    int bytes_copied = 0 , n , start_point , remaining ;
+
+    /* find the smaller of the total bytes we have available and what
+     * the user is asking for */
+    *Length = gcmkMIN ( *Length , gcmkNODE_QLEN(Node) ) ;
+
+    remaining = * Length ;
+
+    /* Get start point. */
+    start_point = Node->read_point;
+
+    /* allocate memory to return */
+    if (remaining > Node->tempSize)
+    {
+        kfree(Node->temp);
+
+        if ( ( retval = kmalloc ( sizeof (char ) * remaining , GFP_ATOMIC ) ) == NULL )
+            return NULL;
+
+        Node->temp = retval;
+        Node->tempSize = remaining;
+    }
+    else
+    {
+        retval = Node->temp;
+    }
+
+    /* copy the (possibly noncontiguous) data to our buffer */
+    while ( remaining )
+    {
+        n = gcmkMIN ( remaining , Node->size - start_point ) ;
+        memcpy ( retval + bytes_copied , Node->data + start_point , n ) ;
+        bytes_copied += n ;
+        remaining -= n ;
+        start_point = ( start_point + n ) % Node->size ;
+    }
+
+    /* advance user's file pointer */
+    Node->read_point = (Node->read_point + * Length) % Node->size ;
+
+    return retval ;
+}
+
+/*******************************************************************************
+ **
+ **  _WriteToNode
+ **
+ ** 1) writes to a circular buffer with wraparound.
+ ** 2)in case of an overflow, it overwrites the oldest unread data.
+ **
+ *********************************************************************************/
+static void
+_WriteToNode (
+               gcsDEBUGFS_Node* Node ,
+               caddr_t Buf ,
+               int Length
+               )
+{
+    int bytes_copied = 0 ;
+    int overflow = 0 ;
+    int n ;
+
+    if ( Length + gcmkNODE_QLEN ( Node ) >= ( Node->size - 1 ) )
+    {
+        overflow = 1 ;
+    }
+
+    while ( Length )
+    {
+        /* how many contiguous bytes are available from the write point to
+         * the end of the circular buffer? */
+        n = gcmkMIN ( Length , Node->size - Node->write_point ) ;
+        memcpy ( Node->data + Node->write_point , Buf + bytes_copied , n ) ;
+        bytes_copied += n ;
+        Length -= n ;
+        Node->write_point = ( Node->write_point + n ) % Node->size ;
+    }
+
+    /* if there is an overflow, reset the read point to read whatever is
+     * the oldest data that we have, that has not yet been
+     * overwritten. */
+    if ( overflow )
+    {
+        Node->read_point = ( Node->write_point + 1 ) % Node->size ;
+    }
+}
+
+/*******************************************************************************
+ **
+ **         PRINTING UTILITY (START)
+ **
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ **  _GetArgumentSize
+ **
+ **
+ *******************************************************************************/
+static gctINT
+_GetArgumentSize (
+                   IN gctCONST_STRING Message
+                   )
+{
+    gctINT i , count ;
+
+    for ( i = 0 , count = 0 ; Message[i] ; i += 1 )
+    {
+        if ( Message[i] == '%' )
+        {
+            count += 1 ;
+        }
+    }
+    return count * sizeof (unsigned int ) ;
+}
+
+/*******************************************************************************
+ **
+ ** _AppendString
+ **
+ **
+ *******************************************************************************/
+static ssize_t
+_AppendString (
+    IN gcsDEBUGFS_Node* Node,
+    IN gctCONST_STRING String,
+    IN int Length
+    )
+{
+    int n;
+    unsigned long flags;
+
+    /* if the message is longer than the buffer, just take the beginning
+     * of it, in hopes that the reader (if any) will have time to read
+     * before we wrap around and obliterate it */
+    n = gcmkMIN ( Length , Node->size - 1 );
+
+    spin_lock_irqsave(&traceLock, flags);
+
+    /* now copy it into the circular buffer and free our temp copy */
+    _WriteToNode ( Node , (caddr_t)String , n ) ;
+
+    spin_unlock_irqrestore(&traceLock, flags);
+
+    return n ;
+}
+
+/*******************************************************************************
+ **
+ ** _DebugFSPrint
+ **
+ **
+ *******************************************************************************/
+static ssize_t
+_DebugFSPrint (
+                IN unsigned int ArgumentSize ,
+                IN const char* Message ,
+                IN gctDBGARGS * Arguments
+
+                )
+{
+    char buffer[MAX_LINE_SIZE] ;
+    int len ;
+    ssize_t res = 0;
+
+    if ( gc_dbgfs.currentNode )
+    {
+        len = vsnprintf ( buffer , sizeof (buffer ) , Message , *( va_list * ) Arguments ) ;
+
+        buffer[len] = '\0' ;
+        /* Add end-of-line if missing. */
+        if ( buffer[len - 1] != '\n' )
+        {
+             buffer[len ++] = '\n' ;
+             buffer[len] = '\0' ;
+        }
+
+       res = _AppendString ( gc_dbgfs.currentNode , buffer , len ) ;
+       wake_up_interruptible ( gcmkNODE_READQ ( gc_dbgfs.currentNode ) ) ; /* blocked in read*/
+    }
+
+    return res;
+}
+
+/*******************************************************************************
+ **
+ **                     LINUX SYSTEM FUNCTIONS (START)
+ **
+ *******************************************************************************/
+static int
+_DebugFSOpen (
+    struct inode* inode,
+    struct file* filp
+    )
+{
+    filp->private_data = inode->i_private;
+
+    return 0;
+}
+
+/*******************************************************************************
+ **
+ **   _DebugFSRead
+ **
+ *******************************************************************************/
+static ssize_t
+_DebugFSRead (
+    struct file *file,
+    char __user * buffer,
+    size_t length,
+    loff_t * offset
+    )
+{
+    int retval;
+    caddr_t data_to_return;
+    unsigned long flags;
+    gcsDEBUGFS_Node* node = file->private_data;
+
+    if (node == NULL)
+    {
+        printk ( "debugfs_read: record not found\n" );
+        return - EIO ;
+    }
+
+    spin_lock_irqsave(&traceLock, flags);
+
+    /* wait until there's data available (unless we do nonblocking reads) */
+    while (!gcmkNODE_QLEN(node))
+    {
+        spin_unlock_irqrestore(&traceLock, flags);
+
+        if (file->f_flags & O_NONBLOCK)
+        {
+            return - EAGAIN ;
+        }
+
+        if (wait_event_interruptible((*(gcmkNODE_READQ(node))) , (*offset < gcmkNODE_FIRST_EMPTY_BYTE(node))))
+        {
+            return - ERESTARTSYS ; /* signal: tell the fs layer to handle it */
+        }
+
+        spin_lock_irqsave(&traceLock, flags);
+    }
+
+    data_to_return = _ReadFromNode(node , &length , offset);
+
+    spin_unlock_irqrestore(&traceLock, flags);
+
+    if (data_to_return == NULL)
+    {
+        retval = 0;
+        goto unlock;
+    }
+
+    if (copy_to_user(buffer, data_to_return, length) > 0)
+    {
+        retval = - EFAULT;
+    }
+    else
+    {
+        retval = length;
+    }
+unlock:
+
+    wake_up_interruptible(gcmkNODE_WRITEQ(node));
+    return retval ;
+}
+
+/*******************************************************************************
+ **
+ **_DebugFSWrite
+ **
+ *******************************************************************************/
+static ssize_t
+_DebugFSWrite (
+                struct file *file ,
+                const char __user * buffer ,
+                size_t length ,
+                loff_t * offset
+                )
+{
+    caddr_t message = NULL ;
+    int n ;
+    gcsDEBUGFS_Node* node = file->private_data;
+
+    /* get the metadata about this log */
+    if (node == NULL)
+    {
+        return - EIO ;
+    }
+
+    if ( down_interruptible ( gcmkNODE_SEM ( node ) ) )
+    {
+        return - ERESTARTSYS ;
+    }
+
+    /* if the message is longer than the buffer, just take the beginning
+     * of it, in hopes that the reader (if any) will have time to read
+     * before we wrap around and obliterate it */
+    n = gcmkMIN ( length , node->size - 1 ) ;
+
+    /* make sure we have the memory for it */
+    if ( ( message = kmalloc ( n , GFP_KERNEL ) ) == NULL )
+    {
+        up ( gcmkNODE_SEM ( node ) ) ;
+        return - ENOMEM ;
+    }
+
+
+    /* copy into our temp buffer */
+    if ( copy_from_user ( message , buffer , n ) > 0 )
+    {
+        up ( gcmkNODE_SEM ( node ) ) ;
+        kfree ( message ) ;
+        return - EFAULT ;
+    }
+
+    /* now copy it into the circular buffer and free our temp copy */
+    _WriteToNode ( node , message , n ) ;
+
+    kfree ( message ) ;
+    up ( gcmkNODE_SEM ( node ) ) ;
+
+    /* wake up any readers that might be waiting for the data.  we call
+     * schedule in the vague hope that a reader will run before the
+     * writer's next write, to avoid losing data. */
+    wake_up_interruptible ( gcmkNODE_READQ ( node ) ) ;
+
+    return n ;
+}
+
+/*******************************************************************************
+ **
+ ** File Operations Table
+ **
+ *******************************************************************************/
+static const struct file_operations debugfs_operations = {
+                                                          .owner = THIS_MODULE ,
+                                                          .open = _DebugFSOpen ,
+                                                          .read = _DebugFSRead ,
+                                                          .write = _DebugFSWrite ,
+} ;
+
+/*******************************************************************************
+ **
+ **                             INTERFACE FUNCTIONS (START)
+ **
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_IsEnabled
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+
+
+gctINT
+gckDEBUGFS_IsEnabled ( void )
+{
+    return gc_dbgfs.isInited ;
+}
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_Initialize
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+
+gctINT
+gckDEBUGFS_Initialize ( void )
+{
+    if ( ! gc_dbgfs.isInited )
+    {
+        gc_dbgfs.linkedlist = gcvNULL ;
+        gc_dbgfs.currentNode = gcvNULL ;
+        gc_dbgfs.isInited = 1 ;
+    }
+    return gc_dbgfs.isInited ;
+}
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_Terminate
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+
+gctINT
+gckDEBUGFS_Terminate ( void )
+{
+    gcsDEBUGFS_Node * next = gcvNULL ;
+    gcsDEBUGFS_Node * temp = gcvNULL ;
+    if ( gc_dbgfs.isInited )
+    {
+        temp = gc_dbgfs.linkedlist ;
+        while ( temp != gcvNULL )
+        {
+            next = temp->next ;
+            gckDEBUGFS_FreeNode ( temp ) ;
+            kfree ( temp ) ;
+            temp = next ;
+        }
+        gc_dbgfs.isInited = 0 ;
+    }
+    return 0 ;
+}
+
+
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_CreateNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ **     gckDEBUGFS_FreeNode * Device
+ **          Pointer to a variable receiving the gcsDEBUGFS_Node object pointer on
+ **          success.
+ *********************************************************************************/
+
+gctINT
+gckDEBUGFS_CreateNode (
+    IN gctPOINTER Device,
+    IN gctINT SizeInKB ,
+    IN struct dentry * Root ,
+    IN gctCONST_STRING NodeName ,
+    OUT gcsDEBUGFS_Node **Node
+    )
+{
+    gcsDEBUGFS_Node*node ;
+    /* allocate space for our metadata and initialize it */
+    if ( ( node = kmalloc ( sizeof (gcsDEBUGFS_Node ) , GFP_KERNEL ) ) == NULL )
+        goto struct_malloc_failed ;
+
+    /*Zero it out*/
+    memset ( node , 0 , sizeof (gcsDEBUGFS_Node ) ) ;
+
+    /*Init the sync primitives*/
+#if defined(DECLARE_WAIT_QUEUE_HEAD)
+    init_waitqueue_head ( gcmkNODE_READQ ( node ) ) ;
+#else
+    init_waitqueue ( gcmkNODE_READQ ( node ) ) ;
+#endif
+
+#if defined(DECLARE_WAIT_QUEUE_HEAD)
+    init_waitqueue_head ( gcmkNODE_WRITEQ ( node ) ) ;
+#else
+    init_waitqueue ( gcmkNODE_WRITEQ ( node ) ) ;
+#endif
+    sema_init ( gcmkNODE_SEM ( node ) , 1 ) ;
+    /*End the sync primitives*/
+
+    /*creating the debug file system*/
+    node->parent = Root;
+
+    if (SizeInKB)
+    {
+        /* figure out how much of a buffer this should be and allocate the buffer */
+        node->size = 1024 * SizeInKB ;
+        if ( ( node->data = ( char * ) vmalloc ( sizeof (char ) * node->size ) ) == NULL )
+            goto data_malloc_failed ;
+
+        node->tempSize = 0;
+        node->temp = NULL;
+
+        /*creating the file*/
+        node->filen = debugfs_create_file(NodeName, S_IRUGO|S_IWUSR, node->parent, node,
+                                          &debugfs_operations);
+    }
+
+    /* add it to our linked list */
+    node->next = gc_dbgfs.linkedlist ;
+    gc_dbgfs.linkedlist = node ;
+
+
+    /* pass the struct back */
+    *Node = node ;
+    return 0 ;
+
+
+data_malloc_failed:
+    kfree ( node ) ;
+struct_malloc_failed:
+    return - ENOMEM ;
+}
+
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_FreeNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+void
+gckDEBUGFS_FreeNode (
+                             IN gcsDEBUGFS_Node * Node
+                             )
+{
+
+    gcsDEBUGFS_Node **ptr ;
+
+    if ( Node == NULL )
+    {
+        printk ( "null passed to free_vinfo\n" ) ;
+        return ;
+    }
+
+    down ( gcmkNODE_SEM ( Node ) ) ;
+    /*free data*/
+    vfree ( Node->data ) ;
+
+    kfree(Node->temp);
+
+    /*Close Debug fs*/
+    if ( Node->filen )
+    {
+        debugfs_remove ( Node->filen ) ;
+    }
+
+    /* now delete the node from the linked list */
+    ptr = & ( gc_dbgfs.linkedlist ) ;
+    while ( *ptr != Node )
+    {
+        if ( ! *ptr )
+        {
+            printk ( "corrupt info list!\n" ) ;
+            break ;
+        }
+        else
+            ptr = & ( ( **ptr ).next ) ;
+    }
+    *ptr = Node->next ;
+    up ( gcmkNODE_SEM ( Node ) ) ;
+}
+
+/*******************************************************************************
+ **
+ **   gckDEBUGFS_SetCurrentNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+void
+gckDEBUGFS_SetCurrentNode (
+                                   IN gcsDEBUGFS_Node * Node
+                                   )
+{
+    gc_dbgfs.currentNode = Node ;
+}
+
+/*******************************************************************************
+ **
+ **   gckDEBUGFS_GetCurrentNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+void
+gckDEBUGFS_GetCurrentNode (
+                                   OUT gcsDEBUGFS_Node ** Node
+                                   )
+{
+    *Node = gc_dbgfs.currentNode ;
+}
+
+/*******************************************************************************
+ **
+ **   gckDEBUGFS_Print
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+ssize_t
+gckDEBUGFS_Print (
+                          IN gctCONST_STRING Message ,
+                          ...
+                          )
+{
+    ssize_t _debugfs_res = 0;
+    gcmkDEBUGFS_PRINT ( _GetArgumentSize ( Message ) , Message ) ;
+    return _debugfs_res;
+}

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debugfs.h

@@ -0,0 +1,170 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include <stdarg.h>
+
+#ifndef __gc_hal_kernel_debugfs_h_
+#define __gc_hal_kernel_debugfs_h_
+
+ #define MAX_LINE_SIZE 768           /* Max bytes for a line of debug info */
+
+
+ typedef struct _gcsDEBUGFS_Node gcsDEBUGFS_Node;
+
+typedef struct _gcsDEBUGFS_DIR *gckDEBUGFS_DIR;
+typedef struct _gcsDEBUGFS_DIR
+{
+    struct dentry *     root;
+    struct list_head    nodeList;
+}
+gcsDEBUGFS_DIR;
+
+typedef struct _gcsINFO
+{
+    const char *        name;
+    int                 (*show)(struct seq_file*, void*);
+    int                 (*write)(const char __user *buf, size_t count, void*);
+}
+gcsINFO;
+
+typedef struct _gcsINFO_NODE
+{
+    gcsINFO *          info;
+    gctPOINTER         device;
+    struct dentry *    entry;
+    struct list_head   head;
+}
+gcsINFO_NODE;
+
+gceSTATUS
+gckDEBUGFS_DIR_Init(
+    IN gckDEBUGFS_DIR Dir,
+    IN struct dentry *root,
+    IN gctCONST_STRING Name
+    );
+
+gceSTATUS
+gckDEBUGFS_DIR_CreateFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count,
+    IN gctPOINTER Data
+    );
+
+gceSTATUS
+gckDEBUGFS_DIR_RemoveFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count
+    );
+
+void
+gckDEBUGFS_DIR_Deinit(
+    IN gckDEBUGFS_DIR Dir
+    );
+
+/*******************************************************************************
+ **
+ **                             System Related
+ **
+ *******************************************************************************/
+
+gctINT gckDEBUGFS_IsEnabled(void);
+
+gctINT gckDEBUGFS_Initialize(void);
+
+gctINT gckDEBUGFS_Terminate(void);
+
+
+/*******************************************************************************
+ **
+ **                             Node Related
+ **
+ *******************************************************************************/
+
+gctINT
+gckDEBUGFS_CreateNode(
+    IN gctPOINTER Device,
+    IN gctINT SizeInKB,
+    IN struct dentry * Root,
+    IN gctCONST_STRING NodeName,
+    OUT gcsDEBUGFS_Node **Node
+    );
+
+void gckDEBUGFS_FreeNode(
+            IN gcsDEBUGFS_Node  * Node
+            );
+
+
+
+void gckDEBUGFS_SetCurrentNode(
+            IN gcsDEBUGFS_Node  * Node
+            );
+
+
+
+void gckDEBUGFS_GetCurrentNode(
+            OUT gcsDEBUGFS_Node  ** Node
+            );
+
+
+ssize_t gckDEBUGFS_Print(
+                IN gctCONST_STRING  Message,
+                ...
+                );
+
+#endif
+
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_device.h

@@ -0,0 +1,273 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_device_h_
+#define __gc_hal_kernel_device_h_
+
+#include "gc_hal_kernel_debugfs.h"
+#include "gc_hal_ta.h"
+
+typedef struct _gcsDEVICE_CONSTRUCT_ARGS
+{
+    gctBOOL             recovery;
+    gctUINT             stuckDump;
+    gctUINT             gpu3DMinClock;
+
+    gctBOOL             contiguousRequested;
+    gcsPLATFORM*        platform;
+    gctBOOL             mmu;
+    gctBOOL             registerMemMapped;
+    gctPOINTER             registerMemAddress;
+#if gcdDEC_ENABLE_AHB
+    gctUINT32           registerMemBaseDEC300;
+    gctSIZE_T           registerMemSizeDEC300;
+#endif
+    gctINT              irqs[gcvCORE_COUNT];
+    gctUINT             registerBases[gcvCORE_COUNT];
+    gctUINT             registerSizes[gcvCORE_COUNT];
+    gctBOOL             powerManagement;
+    gctBOOL             gpuProfiler;
+    gctUINT             chipIDs[gcvCORE_COUNT];
+}
+gcsDEVICE_CONSTRUCT_ARGS;
+
+/******************************************************************************\
+************************** gckGALDEVICE Structure ******************************
+\******************************************************************************/
+
+typedef struct _gckGALDEVICE
+{
+    /* Objects. */
+    gckOS               os;
+    gckKERNEL           kernels[gcdMAX_GPU_COUNT];
+
+    gcsPLATFORM*        platform;
+
+    /* Attributes. */
+    gctSIZE_T           internalSize;
+    gctPHYS_ADDR        internalPhysical;
+    gctUINT32           internalPhysicalName;
+    gctPOINTER          internalLogical;
+    gckVIDMEM           internalVidMem;
+
+    gctUINT32           externalBase;
+    gctSIZE_T           externalSize;
+    gctPHYS_ADDR        externalPhysical;
+    gctUINT32           externalPhysicalName;
+    gctPOINTER          externalLogical;
+    gckVIDMEM           externalVidMem;
+
+    gctPHYS_ADDR_T      contiguousBase;
+    gctSIZE_T           contiguousSize;
+
+    gckVIDMEM           contiguousVidMem;
+    gctPOINTER          contiguousLogical;
+    gctPHYS_ADDR        contiguousPhysical;
+    gctUINT32           contiguousPhysicalName;
+
+    gctSIZE_T           systemMemorySize;
+    gctUINT32           systemMemoryBaseAddress;
+    gctPOINTER          registerBases[gcdMAX_GPU_COUNT];
+    gctSIZE_T           registerSizes[gcdMAX_GPU_COUNT];
+
+    gctUINT32           baseAddress;
+    gctUINT32           physBase;
+    gctUINT32           physSize;
+
+    /* By request_mem_region. */
+    gctUINT32           requestedRegisterMemBases[gcdMAX_GPU_COUNT];
+    gctSIZE_T           requestedRegisterMemSizes[gcdMAX_GPU_COUNT];
+
+    /* By request_mem_region. */
+    gctUINT32           requestedContiguousBase;
+    gctSIZE_T           requestedContiguousSize;
+
+    /* IRQ management. */
+    gctINT              irqLines[gcdMAX_GPU_COUNT];
+    gctBOOL             isrInitializeds[gcdMAX_GPU_COUNT];
+
+    /* Thread management. */
+    struct task_struct  *threadCtxts[gcdMAX_GPU_COUNT];
+    struct semaphore    semas[gcdMAX_GPU_COUNT];
+    gctBOOL             threadInitializeds[gcdMAX_GPU_COUNT];
+    gctBOOL             killThread;
+
+    /* Signal management. */
+    gctINT              signal;
+
+    /* States before suspend. */
+    gceCHIPPOWERSTATE   statesStored[gcdMAX_GPU_COUNT];
+
+    /* Device Debug File System Entry in kernel. */
+    struct _gcsDEBUGFS_Node * dbgNode;
+
+    gcsDEBUGFS_DIR      debugfsDir;
+
+    gckDEVICE           device;
+
+    gcsDEVICE_CONSTRUCT_ARGS args;
+
+    /* gctsOs object for trust application. */
+    gctaOS              taos;
+
+#if gcdENABLE_DRM
+    void*               drm;
+#endif
+}
+* gckGALDEVICE;
+
+typedef struct _gcsHAL_PRIVATE_DATA
+{
+    gckGALDEVICE        device;
+    /*
+     * 'fput' schedules actual work in '__fput' in a different thread.
+     * So the process opens the device may not be the same as the one that
+     * closes it.
+     */
+    gctUINT32           pidOpen;
+    gctBOOL             isLocked;
+}
+gcsHAL_PRIVATE_DATA, * gcsHAL_PRIVATE_DATA_PTR;
+
+gceSTATUS gckGALDEVICE_Setup_ISR(
+    IN gceCORE Core
+    );
+
+gceSTATUS gckGALDEVICE_Setup_ISR_VG(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Release_ISR(
+    IN gceCORE Core
+    );
+
+gceSTATUS gckGALDEVICE_Release_ISR_VG(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Start_Threads(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Stop_Threads(
+    gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Start(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Stop(
+    gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Construct(
+    IN gctINT IrqLine,
+    IN gctUINT32 RegisterMemBase,
+    IN gctSIZE_T RegisterMemSize,
+    IN gctINT IrqLine2D,
+    IN gctUINT32 RegisterMemBase2D,
+    IN gctSIZE_T RegisterMemSize2D,
+    IN gctINT IrqLineVG,
+    IN gctUINT32 RegisterMemBaseVG,
+    IN gctSIZE_T RegisterMemSizeVG,
+    IN gctUINT32 ContiguousBase,
+    IN gctSIZE_T ContiguousSize,
+    IN gctUINT32 ExternalBase,
+    IN gctSIZE_T ExternalSize,
+    IN gctSIZE_T BankSize,
+    IN gctINT FastClear,
+    IN gctINT Compression,
+    IN gctUINT32 PhysBaseAddr,
+    IN gctUINT32 PhysSize,
+    IN gctINT Signal,
+    IN gctUINT LogFileSize,
+    IN gctINT PowerManagement,
+    IN gctINT GpuProfiler,
+    IN gcsDEVICE_CONSTRUCT_ARGS * Args,
+    OUT gckGALDEVICE *Device
+    );
+
+gceSTATUS gckGALDEVICE_Destroy(
+    IN gckGALDEVICE Device
+    );
+
+static gcmINLINE gckKERNEL
+_GetValidKernel(
+    gckGALDEVICE Device
+    )
+{
+    if (Device->kernels[gcvCORE_MAJOR])
+    {
+        return Device->kernels[gcvCORE_MAJOR];
+    }
+    else
+    if (Device->kernels[gcvCORE_2D])
+    {
+        return Device->kernels[gcvCORE_2D];
+    }
+    else
+    if (Device->kernels[gcvCORE_VG])
+    {
+        return Device->kernels[gcvCORE_VG];
+    }
+    else
+    {
+        gcmkASSERT(gcvFALSE);
+        return gcvNULL;
+    }
+}
+
+#endif /* __gc_hal_kernel_device_h_ */

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_drm.c

@@ -0,0 +1,856 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#if gcdENABLE_DRM
+
+#include <drm/drmP.h>
+#include <drm/drm_gem.h>
+#include <linux/dma-buf.h>
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_drm.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_KERNEL
+
+/******************************************************************************\
+******************************* gckKERNEL DRM Code ******************************
+\******************************************************************************/
+
+struct viv_gem_object {
+    struct drm_gem_object base;
+
+    uint32_t              node_handle;
+    gckVIDMEM_NODE        node_object;
+    gctBOOL               cacheable;
+};
+
+struct dma_buf *viv_gem_prime_export(struct drm_device *drm,
+                struct drm_gem_object *gem_obj,
+                int flags)
+{
+    struct viv_gem_object *viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+    struct dma_buf *dmabuf = gcvNULL;
+    gckGALDEVICE gal_dev = (gckGALDEVICE)drm->dev_private;
+
+    if (gal_dev)
+    {
+        gckKERNEL kernel = gal_dev->device->map[gal_dev->device->defaultHwType].kernels[0];
+        gcmkVERIFY_OK(gckVIDMEM_NODE_Export(kernel, viv_obj->node_handle, flags,
+                                            (gctPOINTER*)&dmabuf, gcvNULL));
+    }
+
+    return dmabuf;
+}
+
+struct drm_gem_object *viv_gem_prime_import(struct drm_device *drm,
+                                            struct dma_buf *dmabuf)
+{
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj;
+
+    gcsHAL_INTERFACE iface;
+    gckGALDEVICE gal_dev;
+    gckKERNEL kernel;
+    gctUINT32 processID;
+    gckVIDMEM_NODE nodeObject;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gckOS_ZeroMemory(&iface, sizeof(iface));
+    iface.command = gcvHAL_WRAP_USER_MEMORY;
+    iface.hardwareType = gal_dev->device->defaultHwType;
+    iface.u.WrapUserMemory.desc.flag = gcvALLOC_FLAG_DMABUF;
+    iface.u.WrapUserMemory.desc.handle = -1;
+    iface.u.WrapUserMemory.desc.dmabuf = gcmPTR_TO_UINT64(dmabuf);
+    gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+    kernel = gal_dev->device->map[gal_dev->device->defaultHwType].kernels[0];
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+    gcmkONERROR(gckVIDMEM_HANDLE_Lookup(kernel, processID, iface.u.WrapUserMemory.node, &nodeObject));
+
+    /* ioctl output */
+    gem_obj = kzalloc(sizeof(struct viv_gem_object), GFP_KERNEL);
+    drm_gem_private_object_init(drm, gem_obj, dmabuf->size);
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+    viv_obj->node_handle = iface.u.WrapUserMemory.node;
+    viv_obj->node_object = nodeObject;
+
+OnError:
+    return gem_obj;
+}
+
+void viv_gem_free_object(struct drm_gem_object *gem_obj)
+{
+    struct viv_gem_object *viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+    struct drm_device *drm = gem_obj->dev;
+
+    gcsHAL_INTERFACE iface;
+    gckGALDEVICE gal_dev = (gckGALDEVICE)drm->dev_private;
+
+    gckOS_ZeroMemory(&iface, sizeof(iface));
+    iface.command = gcvHAL_RELEASE_VIDEO_MEMORY;
+    iface.hardwareType = gal_dev->device->defaultHwType;
+    iface.u.ReleaseVideoMemory.node = viv_obj->node_handle;
+    gcmkVERIFY_OK(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+    drm_gem_object_release(gem_obj);
+    kfree(gem_obj);
+}
+
+static int viv_ioctl_gem_create(struct drm_device *drm, void *data,
+                                struct drm_file *file)
+{
+    int ret = 0;
+    struct drm_viv_gem_create *args = (struct drm_viv_gem_create*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gcsHAL_INTERFACE iface;
+    gckGALDEVICE gal_dev;
+    gckKERNEL kernel;
+    gctUINT32 processID;
+    gckVIDMEM_NODE nodeObject;
+    gctUINT32 flags = gcvALLOC_FLAG_DMABUF_EXPORTABLE;
+    gceSTATUS status = gcvSTATUS_OK;
+    gcePOOL pool = gcvPOOL_DEFAULT;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    if (args->flags & DRM_VIV_GEM_CONTIGUOUS)
+    {
+        flags |= gcvALLOC_FLAG_CONTIGUOUS;
+    }
+    if (args->flags & DRM_VIV_GEM_CACHED)
+    {
+        flags |= gcvALLOC_FLAG_CACHEABLE;
+    }
+    if (args->flags & DRM_VIV_GEM_SECURE)
+    {
+        flags |= gcvALLOC_FLAG_SECURITY;
+    }
+    if (args->flags & DRM_VIV_GEM_CMA_LIMIT)
+    {
+        flags |= gcvALLOC_FLAG_CMA_LIMIT;
+    }
+    if (args->flags & DRM_VIV_GEM_VIRTUAL_POOL) {
+        flags &= ~(gcvALLOC_FLAG_CMA_LIMIT | gcvALLOC_FLAG_CONTIGUOUS);
+        pool = gcvPOOL_VIRTUAL;
+    }
+
+    gckOS_ZeroMemory(&iface, sizeof(iface));
+    iface.command = gcvHAL_ALLOCATE_LINEAR_VIDEO_MEMORY;
+    iface.hardwareType = gal_dev->device->defaultHwType;
+    iface.u.AllocateLinearVideoMemory.bytes = PAGE_ALIGN(args->size);
+    iface.u.AllocateLinearVideoMemory.alignment = 256;
+    iface.u.AllocateLinearVideoMemory.type = gcvSURF_RENDER_TARGET; /* should be general */
+    iface.u.AllocateLinearVideoMemory.flag = flags;
+    iface.u.AllocateLinearVideoMemory.pool = pool;
+    gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+    kernel = gal_dev->device->map[gal_dev->device->defaultHwType].kernels[0];
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+    gcmkONERROR(gckVIDMEM_HANDLE_Lookup(kernel, processID, iface.u.AllocateLinearVideoMemory.node, &nodeObject));
+
+    /* ioctl output */
+    gem_obj = kzalloc(sizeof(struct viv_gem_object), GFP_KERNEL);
+    drm_gem_private_object_init(drm, gem_obj, iface.u.AllocateLinearVideoMemory.bytes);
+    ret = drm_gem_handle_create(file, gem_obj, &args->handle);
+
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+    viv_obj->node_handle = iface.u.AllocateLinearVideoMemory.node;
+    viv_obj->node_object = nodeObject;
+    viv_obj->cacheable = flags & gcvALLOC_FLAG_CACHEABLE;
+
+    /* drop reference from allocate - handle holds it now */
+    drm_gem_object_unreference_unlocked(gem_obj);
+
+OnError:
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_lock(struct drm_device *drm, void *data,
+                              struct drm_file *file)
+{
+    struct drm_viv_gem_lock *args = (struct drm_viv_gem_lock*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gcsHAL_INTERFACE iface;
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+
+    gckOS_ZeroMemory(&iface, sizeof(iface));
+    iface.command = gcvHAL_LOCK_VIDEO_MEMORY;
+    iface.hardwareType = gal_dev->device->defaultHwType;
+    iface.u.LockVideoMemory.node = viv_obj->node_handle;
+    iface.u.LockVideoMemory.cacheable = args->cacheable;
+    gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+    args->logical = iface.u.LockVideoMemory.memory;
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_unlock(struct drm_device *drm, void *data,
+                                struct drm_file *file)
+{
+    struct drm_viv_gem_unlock *args = (struct drm_viv_gem_unlock*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gcsHAL_INTERFACE iface;
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+
+    memset(&iface, 0, sizeof(iface));
+    iface.command = gcvHAL_UNLOCK_VIDEO_MEMORY;
+    iface.hardwareType = gal_dev->device->defaultHwType;
+    iface.u.UnlockVideoMemory.node = (gctUINT64)viv_obj->node_handle;
+    iface.u.UnlockVideoMemory.type = gcvSURF_TYPE_UNKNOWN;
+    gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+    memset(&iface, 0, sizeof(iface));
+    iface.command = gcvHAL_BOTTOM_HALF_UNLOCK_VIDEO_MEMORY;
+    iface.hardwareType = gal_dev->device->defaultHwType;
+    iface.u.BottomHalfUnlockVideoMemory.node = (gctUINT64)viv_obj->node_handle;
+    iface.u.BottomHalfUnlockVideoMemory.type = gcvSURF_TYPE_UNKNOWN;
+    gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_cache(struct drm_device *drm, void *data,
+                               struct drm_file *file)
+{
+    struct drm_viv_gem_cache *args = (struct drm_viv_gem_cache*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gcsHAL_INTERFACE iface;
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+    gceCACHEOPERATION cache_op = 0;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+
+    switch (args->op)
+    {
+    case DRM_VIV_GEM_CLEAN_CACHE:
+        cache_op = gcvCACHE_CLEAN;
+        break;
+    case DRM_VIV_GEM_INVALIDATE_CACHE:
+        cache_op = gcvCACHE_INVALIDATE;
+        break;
+    case DRM_VIV_GEM_FLUSH_CACHE:
+        cache_op = gcvCACHE_FLUSH;
+        break;
+    case DRM_VIV_GEM_MEMORY_BARRIER:
+        cache_op = gcvCACHE_MEMORY_BARRIER;
+        break;
+    default:
+        break;
+    }
+
+    gckOS_ZeroMemory(&iface, sizeof(iface));
+    iface.command = gcvHAL_CACHE;
+    iface.hardwareType = gal_dev->device->defaultHwType;
+    iface.u.Cache.node       = viv_obj->node_handle;
+    iface.u.Cache.operation  = cache_op;
+    iface.u.Cache.logical    = args->logical;
+    iface.u.Cache.bytes      = args->bytes;
+    gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_query(struct drm_device *drm, void *data,
+                               struct drm_file *file)
+{
+    struct drm_viv_gem_query *args = (struct drm_viv_gem_query*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+
+    switch (args->param)
+    {
+    case DRM_VIV_GEM_PARAM_POOL:
+        args->value = (__u64)viv_obj->node_object->pool;
+        break;
+    case DRM_VIV_GEM_PARAM_SIZE:
+        args->value = (__u64)gem_obj->size;
+        break;
+    default:
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_timestamp(struct drm_device *drm, void *data,
+                                       struct drm_file *file)
+{
+    struct drm_viv_gem_timestamp *args = (struct drm_viv_gem_timestamp *)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+
+    viv_obj->node_object->timeStamp += args->inc;
+    args->timestamp = viv_obj->node_object->timeStamp;
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_set_tiling(struct drm_device *drm, void *data,
+                                    struct drm_file *file)
+{
+    struct drm_viv_gem_set_tiling *args = (struct drm_viv_gem_set_tiling*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+
+    viv_obj->node_object->tilingMode = args->tiling_mode;
+    viv_obj->node_object->tsMode     = args->ts_mode;
+    viv_obj->node_object->clearValue = args->clear_value;
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_get_tiling(struct drm_device *drm, void *data,
+                                  struct drm_file *file)
+{
+    struct drm_viv_gem_get_tiling *args = (struct drm_viv_gem_get_tiling*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+
+    args->tiling_mode = viv_obj->node_object->tilingMode;
+    args->ts_mode     = viv_obj->node_object->tsMode;
+    args->clear_value = viv_obj->node_object->clearValue;
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_attach_aux(struct drm_device *drm, void *data,
+                                    struct drm_file *file)
+{
+    struct drm_viv_gem_attach_aux *args = (struct drm_viv_gem_attach_aux*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+    struct drm_gem_object *gem_ts_obj = gcvNULL;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+    gckVIDMEM_NODE nodeObj = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+    nodeObj = viv_obj->node_object;
+
+    /* do not support re-attach */
+    if (nodeObj->tsNode)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    if (args->ts_handle)
+    {
+        struct viv_gem_object *viv_ts_obj;
+        gckKERNEL kernel = gal_dev->device->map[gal_dev->device->defaultHwType].kernels[0];
+        gcsHAL_INTERFACE iface;
+        gctBOOL is2BitPerTile = gckHARDWARE_IsFeatureAvailable(kernel->hardware , gcvFEATURE_TILE_STATUS_2BITS);
+        gctBOOL isCompressionDEC400 = gckHARDWARE_IsFeatureAvailable(kernel->hardware , gcvFEATURE_COMPRESSION_DEC400);
+        gctPOINTER entry = gcvNULL;
+        gctUINT32 tileStatusFiller = (isCompressionDEC400 || ((kernel->hardware->identity.chipModel == gcv500) && (kernel->hardware->identity.chipRevision > 2)))
+                                  ? 0xFFFFFFFF
+                                  : is2BitPerTile ? 0x55555555 : 0x11111111;
+
+        gem_ts_obj = drm_gem_object_lookup(file, args->ts_handle);
+        if (!gem_ts_obj)
+        {
+            gcmkONERROR(gcvSTATUS_NOT_FOUND);
+        }
+        viv_ts_obj = container_of(gem_ts_obj, struct viv_gem_object, base);
+
+        gcmkONERROR(gckVIDMEM_NODE_Reference(kernel, viv_ts_obj->node_object));
+        nodeObj->tsNode = viv_ts_obj->node_object;
+
+        /* Fill tile status node with tileStatusFiller value first time to avoid GPU hang. */
+        /* Lock tile status node. */
+        gckOS_ZeroMemory(&iface, sizeof(iface));
+        iface.command = gcvHAL_LOCK_VIDEO_MEMORY;
+        iface.hardwareType = gal_dev->device->defaultHwType;
+        iface.u.LockVideoMemory.node = viv_ts_obj->node_handle;
+        iface.u.LockVideoMemory.cacheable = viv_ts_obj->cacheable;
+        gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+        /* Fill tile status node with tileStatusFiller. */
+        gcmkONERROR(gckVIDMEM_NODE_LockCPU(kernel, viv_ts_obj->node_handle, &entry));
+        memset(entry , tileStatusFiller , (__u64)gem_ts_obj->size);
+        gcmkONERROR(gckVIDMEM_NODE_UnlockCPU(kernel, viv_ts_obj->node_handle, entry));
+
+        /* UnLock tile status node. */
+        memset(&iface, 0, sizeof(iface));
+        iface.command = gcvHAL_UNLOCK_VIDEO_MEMORY;
+        iface.hardwareType = gal_dev->device->defaultHwType;
+        iface.u.UnlockVideoMemory.node = (gctUINT64)viv_ts_obj->node_handle;
+        iface.u.UnlockVideoMemory.type = gcvSURF_TYPE_UNKNOWN;
+        gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+
+        memset(&iface, 0, sizeof(iface));
+        iface.command = gcvHAL_BOTTOM_HALF_UNLOCK_VIDEO_MEMORY;
+        iface.hardwareType = gal_dev->device->defaultHwType;
+        iface.u.BottomHalfUnlockVideoMemory.node = (gctUINT64)viv_ts_obj->node_handle;
+        iface.u.BottomHalfUnlockVideoMemory.type = gcvSURF_TYPE_UNKNOWN;
+        gcmkONERROR(gckDEVICE_Dispatch(gal_dev->device, &iface));
+    }
+
+OnError:
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+
+        if (gem_ts_obj)
+        {
+            drm_gem_object_unreference_unlocked(gem_ts_obj);
+        }
+    }
+    return gcmIS_ERROR(status) ? -ENOTTY : 0;
+}
+
+static int viv_ioctl_gem_ref_node(struct drm_device *drm, void *data,
+                                 struct drm_file *file)
+{
+    struct drm_viv_gem_ref_node *args = (struct drm_viv_gem_ref_node*)data;
+    struct drm_gem_object *gem_obj = gcvNULL;
+    struct viv_gem_object *viv_obj = gcvNULL;
+
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+    gckKERNEL kernel = gcvNULL;
+    gctUINT32 processID;
+    gckVIDMEM_NODE nodeObj;
+    gctUINT32 nodeHandle = 0, tsNodeHandle = 0;
+    gctBOOL refered = gcvFALSE;
+    int ret = 0;
+
+    gal_dev = (gckGALDEVICE)drm->dev_private;
+    if (!gal_dev)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+    kernel = gal_dev->device->map[gal_dev->device->defaultHwType].kernels[0];
+
+    gem_obj = drm_gem_object_lookup(file, args->handle);
+    if (!gem_obj)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+    viv_obj = container_of(gem_obj, struct viv_gem_object, base);
+    nodeObj = viv_obj->node_object;
+
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+    gcmkONERROR(gckVIDMEM_HANDLE_Allocate(kernel, nodeObj, &nodeHandle));
+    gcmkONERROR(
+        gckKERNEL_AddProcessDB(kernel,
+                               processID, gcvDB_VIDEO_MEMORY,
+                               gcmINT2PTR(nodeHandle),
+                               gcvNULL,
+                               0));
+    gcmkONERROR(gckVIDMEM_NODE_Reference(kernel, nodeObj));
+    refered = gcvTRUE;
+
+    if (nodeObj->tsNode)
+    {
+        gcmkONERROR(gckVIDMEM_HANDLE_Allocate(kernel, nodeObj->tsNode, &tsNodeHandle));
+        gcmkONERROR(
+            gckKERNEL_AddProcessDB(kernel,
+                                   processID, gcvDB_VIDEO_MEMORY,
+                                   gcmINT2PTR(tsNodeHandle),
+                                   gcvNULL,
+                                   0));
+        gcmkONERROR(gckVIDMEM_NODE_Reference(kernel, nodeObj->tsNode));
+    }
+    args->node = nodeHandle;
+    args->ts_node = tsNodeHandle;
+
+OnError:
+    if (gcmIS_ERROR(status) && kernel)
+    {
+        gctUINT32 processID;
+
+        gcmkVERIFY_OK(gckOS_GetProcessID(&processID));
+
+        if (tsNodeHandle)
+        {
+            gckVIDMEM_HANDLE_Dereference(kernel, processID, tsNodeHandle);
+        }
+
+        if (nodeHandle)
+        {
+            gckVIDMEM_HANDLE_Dereference(kernel, processID, nodeHandle);
+        }
+
+        if (refered)
+        {
+            gcmkONERROR(gckVIDMEM_NODE_Dereference(kernel, nodeObj));
+        }
+
+        args->node = 0;
+        args->ts_node = 0;
+
+        ret = -ENOTTY;
+    }
+
+    if (gem_obj)
+    {
+        drm_gem_object_unreference_unlocked(gem_obj);
+    }
+
+    return ret;
+}
+
+static const struct drm_ioctl_desc viv_ioctls[] =
+{
+    DRM_IOCTL_DEF_DRV(VIV_GEM_CREATE,        viv_ioctl_gem_create,     DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_LOCK,          viv_ioctl_gem_lock,       DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_UNLOCK,        viv_ioctl_gem_unlock,     DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_CACHE,         viv_ioctl_gem_cache,      DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_QUERY,         viv_ioctl_gem_query,      DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_TIMESTAMP,     viv_ioctl_gem_timestamp,  DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_SET_TILING,    viv_ioctl_gem_set_tiling, DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_GET_TILING,    viv_ioctl_gem_get_tiling, DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_ATTACH_AUX,    viv_ioctl_gem_attach_aux, DRM_AUTH | DRM_RENDER_ALLOW),
+    DRM_IOCTL_DEF_DRV(VIV_GEM_REF_NODE,      viv_ioctl_gem_ref_node,   DRM_AUTH | DRM_RENDER_ALLOW),
+};
+
+int viv_drm_open(struct drm_device *drm, struct drm_file *file)
+{
+    gctINT i;
+    gctUINT32 pid = _GetProcessID();
+    gckGALDEVICE gal_dev = (gckGALDEVICE)drm->dev_private;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; ++i)
+    {
+        if (gal_dev->kernels[i])
+        {
+            gcmkONERROR(gckKERNEL_AttachProcessEx(gal_dev->kernels[i], gcvTRUE, pid));
+        }
+    }
+    file->driver_priv = gcmINT2PTR(pid);
+
+OnError:
+    return gcmIS_ERROR(status) ? -ENODEV :  0;
+}
+
+void viv_drm_postclose(struct drm_device *drm, struct drm_file *file)
+{
+    gctINT i;
+    gctUINT32 pid = gcmPTR2SIZE(file->driver_priv);
+    gckGALDEVICE gal_dev = (gckGALDEVICE)drm->dev_private;
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; ++i)
+    {
+        if (gal_dev->kernels[i])
+        {
+            gcmkVERIFY_OK(gckKERNEL_AttachProcessEx(gal_dev->kernels[i], gcvFALSE, pid));
+        }
+    }
+}
+
+static const struct file_operations viv_drm_fops = {
+    .owner              = THIS_MODULE,
+    .open               = drm_open,
+    .release            = drm_release,
+    .unlocked_ioctl     = drm_ioctl,
+#ifdef CONFIG_COMPAT
+    .compat_ioctl       = drm_compat_ioctl,
+#endif
+    .poll               = drm_poll,
+    .read               = drm_read,
+    .llseek             = no_llseek,
+};
+
+static struct drm_driver viv_drm_driver = {
+    .driver_features    = DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER,
+    .open = viv_drm_open,
+    .postclose = viv_drm_postclose,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,7,0)
+    .gem_free_object_unlocked = viv_gem_free_object,
+#else
+    .gem_free_object    = viv_gem_free_object,
+#endif
+    .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
+    .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
+    .gem_prime_export   = viv_gem_prime_export,
+    .gem_prime_import   = viv_gem_prime_import,
+    .ioctls             = viv_ioctls,
+    .num_ioctls         = DRM_VIV_NUM_IOCTLS,
+    .fops               = &viv_drm_fops,
+    .name               = "vivante",
+    .desc               = "vivante DRM",
+    .date               = "20170808",
+    .major              = 1,
+    .minor              = 0,
+};
+
+int viv_drm_probe(struct device *dev)
+{
+    int ret = 0;
+    gceSTATUS status = gcvSTATUS_OK;
+    gckGALDEVICE gal_dev = gcvNULL;
+    struct drm_device *drm = gcvNULL;
+
+    gal_dev = (gckGALDEVICE)dev_get_drvdata(dev);
+    if (!gal_dev)
+    {
+        ret = -ENODEV;
+        gcmkONERROR(gcvSTATUS_INVALID_OBJECT);
+    }
+
+    drm = drm_dev_alloc(&viv_drm_driver, dev);
+    if (IS_ERR(drm))
+    {
+        ret = PTR_ERR(drm);
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+    drm->dev_private = (void*)gal_dev;
+
+    ret = drm_dev_register(drm, 0);
+    if (ret)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    gal_dev->drm = (void*)drm;
+
+OnError:
+    if (gcmIS_ERROR(status))
+    {
+        if (drm)
+        {
+            drm_dev_unref(drm);
+        }
+        printk(KERN_ERR "galcore: Failed to setup drm device.\n");
+    }
+    return ret;
+}
+
+int viv_drm_remove(struct device *dev)
+{
+    gckGALDEVICE gal_dev = (gckGALDEVICE)dev_get_drvdata(dev);
+
+    if (gal_dev)
+    {
+        struct drm_device *drm = (struct drm_device*)gal_dev->drm;
+
+        drm_dev_unregister(drm);
+        drm_dev_unref(drm);
+    }
+
+    return 0;
+}
+
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_iommu.c

@@ -0,0 +1,250 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_device.h"
+
+#include <linux/iommu.h>
+#include <linux/platform_device.h>
+
+#define _GC_OBJ_ZONE gcvZONE_OS
+
+typedef struct _gcsIOMMU
+{
+    struct iommu_domain * domain;
+    struct device *       device;
+}
+gcsIOMMU;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
+static int
+_IOMMU_Fault_Handler(
+    struct iommu_domain * Domain,
+    struct device * Dev,
+    unsigned long DomainAddress,
+    int flags,
+    void * args
+    )
+#else
+static int
+_IOMMU_Fault_Handler(
+    struct iommu_domain * Domain,
+    struct device * Dev,
+    unsigned long DomainAddress,
+    int flags
+    )
+#endif
+{
+    return 0;
+}
+
+static int
+_FlatMapping(
+    IN gckIOMMU Iommu
+    )
+{
+    gceSTATUS status;
+    gctUINT32 physical;
+
+    for (physical = 0; physical < 0x80000000; physical += PAGE_SIZE)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "Map %x => %x bytes = %d",
+            physical, physical, PAGE_SIZE
+            );
+
+        gcmkONERROR(gckIOMMU_Map(Iommu, physical, physical, PAGE_SIZE));
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+void
+gckIOMMU_Destory(
+    IN gckOS Os,
+    IN gckIOMMU Iommu
+    )
+{
+    gcmkHEADER();
+
+    if (Iommu->domain && Iommu->device)
+    {
+        iommu_attach_device(Iommu->domain, Iommu->device);
+    }
+
+    if (Iommu->domain)
+    {
+        iommu_domain_free(Iommu->domain);
+    }
+
+    if (Iommu)
+    {
+        gcmkOS_SAFE_FREE(Os, Iommu);
+    }
+
+    gcmkFOOTER_NO();
+}
+
+gceSTATUS
+gckIOMMU_Construct(
+    IN gckOS Os,
+    OUT gckIOMMU * Iommu
+    )
+{
+    gceSTATUS status;
+    gckIOMMU iommu = gcvNULL;
+    struct device *dev;
+    int ret;
+
+    gcmkHEADER();
+
+    dev = &Os->device->platform->device->dev;
+
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsIOMMU), (gctPOINTER *)&iommu));
+
+    gckOS_ZeroMemory(iommu, gcmSIZEOF(gcsIOMMU));
+
+    iommu->domain = iommu_domain_alloc(&platform_bus_type);
+
+    if (!iommu->domain)
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "iommu_domain_alloc() fail");
+
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
+    iommu_set_fault_handler(iommu->domain, _IOMMU_Fault_Handler, dev);
+#else
+    iommu_set_fault_handler(iommu->domain, _IOMMU_Fault_Handler);
+#endif
+
+    ret = iommu_attach_device(iommu->domain, dev);
+
+    if (ret)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS, "iommu_attach_device() fail %d", ret);
+
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    iommu->device = dev;
+
+    _FlatMapping(iommu);
+
+    *Iommu = iommu;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+
+    gckIOMMU_Destory(Os, iommu);
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckIOMMU_Map(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Physical,
+    IN gctUINT32 Bytes
+    )
+{
+    gceSTATUS status;
+    int ret;
+
+    gcmkHEADER_ARG("DomainAddress=%#X, Physical=%#X, Bytes=%d",
+                   DomainAddress, Physical, Bytes);
+
+    ret = iommu_map(Iommu->domain, DomainAddress, Physical, Bytes, 0);
+
+    if (ret)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+
+    gcmkFOOTER();
+    return status;
+
+}
+
+gceSTATUS
+gckIOMMU_Unmap(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Bytes
+    )
+{
+    gcmkHEADER();
+
+    iommu_unmap(Iommu->domain, DomainAddress, Bytes);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.c

@@ -0,0 +1,510 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_KERNEL
+
+/******************************************************************************\
+******************************* gckKERNEL API Code ******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckKERNEL_QueryVideoMemory
+**
+**  Query the amount of video memory.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**  OUTPUT:
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to an gcsHAL_INTERFACE structure that will be filled in with
+**          the memory information.
+*/
+gceSTATUS
+gckKERNEL_QueryVideoMemory(
+    IN gckKERNEL Kernel,
+    OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gckGALDEVICE device;
+
+    gcmkHEADER_ARG("Kernel=%p", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Interface != NULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+    /* Get internal memory size and physical address. */
+    Interface->u.QueryVideoMemory.internalSize = device->internalSize;
+    Interface->u.QueryVideoMemory.internalPhysical = device->internalPhysicalName;
+
+    /* Get external memory size and physical address. */
+    Interface->u.QueryVideoMemory.externalSize = device->externalSize;
+    Interface->u.QueryVideoMemory.externalPhysical = device->externalPhysicalName;
+
+    /* Get contiguous memory size and physical address. */
+    Interface->u.QueryVideoMemory.contiguousSize = device->contiguousSize;
+    Interface->u.QueryVideoMemory.contiguousPhysical = device->contiguousPhysicalName;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_GetVideoMemoryPool
+**
+**  Get the gckVIDMEM object belonging to the specified pool.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcePOOL Pool
+**          Pool to query gckVIDMEM object for.
+**
+**  OUTPUT:
+**
+**      gckVIDMEM * VideoMemory
+**          Pointer to a variable that will hold the pointer to the gckVIDMEM
+**          object belonging to the requested pool.
+*/
+gceSTATUS
+gckKERNEL_GetVideoMemoryPool(
+    IN gckKERNEL Kernel,
+    IN gcePOOL Pool,
+    OUT gckVIDMEM * VideoMemory
+    )
+{
+    gckGALDEVICE device;
+    gckVIDMEM videoMemory;
+
+    gcmkHEADER_ARG("Kernel=%p Pool=%d", Kernel, Pool);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(VideoMemory != NULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+    /* Dispatch on pool. */
+    switch (Pool)
+    {
+    case gcvPOOL_LOCAL_INTERNAL:
+        /* Internal memory. */
+        videoMemory = device->internalVidMem;
+        break;
+
+    case gcvPOOL_LOCAL_EXTERNAL:
+        /* External memory. */
+        videoMemory = device->externalVidMem;
+        break;
+
+    case gcvPOOL_SYSTEM:
+        /* System memory. */
+        videoMemory = device->contiguousVidMem;
+        break;
+
+    default:
+        /* Unknown pool. */
+        videoMemory = NULL;
+    }
+
+    /* Return pointer to the gckVIDMEM object. */
+    *VideoMemory = videoMemory;
+
+    /* Return status. */
+    gcmkFOOTER_ARG("*VideoMemory=%p", *VideoMemory);
+    return (videoMemory == NULL) ? gcvSTATUS_OUT_OF_MEMORY : gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_MapMemory
+**
+**  Map video memory into the current process space.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of video memory to map.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to map.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that will hold the base address of the mapped
+**          memory region.
+*/
+gceSTATUS
+gckKERNEL_MapMemory(
+    IN gckKERNEL Kernel,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical
+    )
+{
+    gckKERNEL kernel = Kernel;
+    gctPHYS_ADDR physical = gcmNAME_TO_PTR(Physical);
+
+    return gckOS_MapMemory(Kernel->os, physical, Bytes, Logical);
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_UnmapMemory
+**
+**  Unmap video memory from the current process space.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of video memory to map.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to map.
+**
+**      gctPOINTER Logical
+**          Base address of the mapped memory region.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_UnmapMemory(
+    IN gckKERNEL Kernel,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID
+    )
+{
+    gckKERNEL kernel = Kernel;
+    gctPHYS_ADDR physical = gcmNAME_TO_PTR(Physical);
+
+    return gckOS_UnmapMemoryEx(Kernel->os, physical, Bytes, Logical, ProcessID);
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_MapVideoMemory
+**
+**  Get the logical address for a hardware specific memory address for the
+**  current process.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL InUserSpace
+**          gcvTRUE to map the memory into the user space.
+**
+**      gctUINT32 Address
+**          Hardware specific memory address.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that will hold the logical address of the
+**          specified memory address.
+*/
+gceSTATUS
+gckKERNEL_MapVideoMemoryEx(
+    IN gckKERNEL Kernel,
+    IN gceCORE Core,
+    IN gctBOOL InUserSpace,
+    IN gctUINT32 Address,
+    IN gcePOOL Pool,
+    OUT gctPOINTER * Logical
+    )
+{
+    gckGALDEVICE device   = gcvNULL;
+    gctUINT32 offset      = 0;
+    gctUINT32 base        = 0;
+    gctSIZE_T bytes       = 0;
+    gctPHYS_ADDR physical = gcvNULL;
+    gceSTATUS status;
+    gctPOINTER logical    = gcvNULL;
+#if gcdENABLE_VG
+    gcePOOL pool = gcvPOOL_UNKNOWN;
+#endif
+
+    gcmkHEADER_ARG("Kernel=%p InUserSpace=%d Address=%08x",
+                   Kernel, InUserSpace, Address);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Logical != NULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+#if gcdENABLE_VG
+    if (Core == gcvCORE_VG)
+    {
+        /* Split the memory address into a pool type and offset. */
+        gcmkONERROR(
+            gckVGHARDWARE_SplitMemory(Kernel->vg->hardware, Address, &pool, &offset));
+    }
+    else
+#endif
+    {
+        offset = Address;
+    }
+
+    /* Dispatch on pool. */
+    switch (Pool)
+    {
+    case gcvPOOL_LOCAL_INTERNAL:
+        /* Internal memory. */
+        logical = device->internalLogical;
+        /* Impossible to use per device logical for all user processes. */
+        BUG_ON("Incorrect path");
+        break;
+
+    case gcvPOOL_LOCAL_EXTERNAL:
+        physical = device->externalPhysical;
+        bytes = device->externalSize;
+
+#if gcdENABLE_VG
+        if (Core == gcvCORE_VG)
+        {
+            gcmkVERIFY_OK(
+                gckVGHARDWARE_SplitMemory(Kernel->vg->hardware,
+                                        device->externalVidMem->baseAddress,
+                                        &pool,
+                                        &base));
+        }
+        else
+#endif
+        {
+            base = Kernel->externalBaseAddress;
+        }
+
+        break;
+
+    case gcvPOOL_SYSTEM:
+        /* System memory. */
+        physical = device->contiguousPhysical;
+        bytes = device->contiguousSize;
+
+#if gcdENABLE_VG
+        if (Core == gcvCORE_VG)
+        {
+            gcmkVERIFY_OK(
+                gckVGHARDWARE_SplitMemory(Kernel->vg->hardware,
+                                        device->contiguousVidMem->baseAddress,
+                                        &pool,
+                                        &base));
+        }
+        else
+#endif
+        {
+            base = Kernel->contiguousBaseAddress;
+        }
+
+        break;
+
+    default:
+        /* Invalid memory pool. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    gcmkONERROR(gckOS_MapMemory(Kernel->os, physical, bytes, &logical));
+
+    /* GPU address offset */
+    offset -= base;
+
+    /* Build logical address of specified address. */
+    *Logical = (gctPOINTER) ((gctUINT8_PTR) logical + offset);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Logical=%p", *Logical);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Retunn the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_MapVideoMemory
+**
+**  Get the logical address for a hardware specific memory address for the
+**  current process.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL InUserSpace
+**          gcvTRUE to map the memory into the user space.
+**
+**      gctUINT32 Address
+**          Hardware specific memory address.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that will hold the logical address of the
+**          specified memory address.
+*/
+gceSTATUS
+gckKERNEL_MapVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctBOOL InUserSpace,
+    IN gctUINT32 Address,
+    OUT gctPOINTER * Logical
+    )
+{
+    return gckKERNEL_MapVideoMemoryEx(Kernel, gcvCORE_MAJOR, InUserSpace, Address, gcvPOOL_SYSTEM, Logical);
+}
+/*******************************************************************************
+**
+**  gckKERNEL_Notify
+**
+**  This function iscalled by clients to notify the gckKERNRL object of an event.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gceNOTIFY Notification
+**          Notification event.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_Notify(
+    IN gckKERNEL Kernel,
+    IN gceNOTIFY Notification,
+    IN gctBOOL Data
+    )
+{
+    gceSTATUS status;
+
+    /* Dispatch on notifcation. */
+    switch (Notification)
+    {
+    case gcvNOTIFY_INTERRUPT:
+        /* Process the interrupt. */
+#if COMMAND_PROCESSOR_VERSION > 1
+        status = gckINTERRUPT_Notify(Kernel->interrupt, Data);
+#else
+        status = gckHARDWARE_Interrupt(Kernel->hardware, Data);
+#endif
+        break;
+
+    default:
+        status = gcvSTATUS_OK;
+        break;
+    }
+
+    /* Success. */
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_QuerySettings(
+    IN gckKERNEL Kernel,
+    OUT gcsKERNEL_SETTINGS * Settings
+    )
+{
+    gckGALDEVICE device;
+
+    gcmkHEADER_ARG("Kernel=%p", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Settings != gcvNULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+    /* Fill in signal. */
+    Settings->signal = device->signal;
+
+    /* Success. */
+    gcmkFOOTER_ARG("Settings->signal=%d", Settings->signal);
+    return gcvSTATUS_OK;
+}

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h

@@ -0,0 +1,411 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_linux_h_
+#define __gc_hal_kernel_linux_h_
+
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
+#include <linux/dma-mapping.h>
+#include <linux/kthread.h>
+
+#include <linux/idr.h>
+
+#ifdef MODVERSIONS
+#  include <linux/modversions.h>
+#endif
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
+#include <linux/clk.h>
+#endif
+
+#define NTSTRSAFE_NO_CCH_FUNCTIONS
+#include "gc_hal.h"
+#include "gc_hal_driver.h"
+#include "gc_hal_kernel.h"
+#include "gc_hal_kernel_platform.h"
+#include "gc_hal_kernel_device.h"
+#include "gc_hal_kernel_os.h"
+#include "gc_hal_kernel_debugfs.h"
+#include "gc_hal_ta.h"
+
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
+#define FIND_TASK_BY_PID(x) pid_task(find_vpid(x), PIDTYPE_PID)
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+#define FIND_TASK_BY_PID(x) find_task_by_vpid(x)
+#else
+#define FIND_TASK_BY_PID(x) find_task_by_pid(x)
+#endif
+
+#ifndef DEVICE_NAME
+#   define DEVICE_NAME              "galcore"
+#endif
+
+#ifndef CLASS_NAME
+#   define CLASS_NAME               "graphics_class"
+#endif
+
+#define GetPageCount(size, offset)     ((((size) + ((offset) & ~PAGE_MASK)) + PAGE_SIZE - 1) >> PAGE_SHIFT)
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION (3,7,0)
+#define gcdVM_FLAGS (VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_DONTDUMP)
+#else
+#define gcdVM_FLAGS (VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_RESERVED)
+#endif
+
+/* Protection bit when mapping memroy to user sapce */
+#define gcmkPAGED_MEMROY_PROT(x)    pgprot_writecombine(x)
+
+#define gcdSUPPRESS_OOM_MESSAGE 1
+
+#if gcdSUPPRESS_OOM_MESSAGE
+#define gcdNOWARN __GFP_NOWARN
+#else
+#define gcdNOWARN 0
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION (4, 1, 0)
+#ifdef gcdIRQ_SHARED
+#       define gcdIRQF_FLAG   (IRQF_SHARED)
+#   else
+#       define gcdIRQF_FLAG   (0)
+#   endif
+#else
+#ifdef gcdIRQ_SHARED
+#       define gcdIRQF_FLAG   (IRQF_DISABLED | IRQF_SHARED)
+#   else
+#       define gcdIRQF_FLAG   (IRQF_DISABLED)
+#   endif
+#endif
+
+/* gcdLINUX_SYNC_FILE and CONFIG_SYNC_FILE. */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0)
+#  define dma_fence                         fence
+#  define dma_fence_array                   fence_array
+#  define dma_fence_ops                     fence_ops
+
+#  define dma_fence_default_wait            fence_default_wait
+
+#  define dma_fence_signal(f)               fence_signal(f)
+#  define dma_fence_signal_locked(f)        fence_signal_locked(f)
+#  define dma_fence_get(f)                  fence_get(f)
+#  define dma_fence_put(f)                  fence_put(f)
+#  define dma_fence_is_array(f)             fence_is_array(f)
+#  define dma_fence_is_signaled(f)          fence_is_signaled(f)
+#  define to_dma_fence_array(f)             to_fence_array(f)
+#  define dma_fence_wait_timeout(f, n, t)   fence_wait_timeout((f), (n), (t))
+#  define dma_fence_init(f, o, l, t, s)     fence_init((f), (o), (l), (t), (s))
+#  define dma_fence_context_alloc(s)        fence_context_alloc(s)
+
+#endif
+
+extern struct device *galcore_device;
+
+/******************************************************************************\
+********************************** Structures **********************************
+\******************************************************************************/
+typedef struct _gcsIOMMU * gckIOMMU;
+
+typedef struct _gcsUSER_MAPPING * gcsUSER_MAPPING_PTR;
+typedef struct _gcsUSER_MAPPING
+{
+    /* Pointer to next mapping structure. */
+    gcsUSER_MAPPING_PTR         next;
+
+    /* Physical address of this mapping. */
+    gctUINT32                   physical;
+
+    /* Logical address of this mapping. */
+    gctPOINTER                  logical;
+
+    /* Number of bytes of this mapping. */
+    gctSIZE_T                   bytes;
+
+    /* Starting address of this mapping. */
+    gctINT8_PTR                 start;
+
+    /* Ending address of this mapping. */
+    gctINT8_PTR                 end;
+}
+gcsUSER_MAPPING;
+
+typedef struct _gcsINTEGER_DB * gcsINTEGER_DB_PTR;
+typedef struct _gcsINTEGER_DB
+{
+    struct idr                  idr;
+    spinlock_t                  lock;
+    gctINT                      curr;
+}
+gcsINTEGER_DB;
+
+struct _gckOS
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to device */
+    gckGALDEVICE                device;
+
+    /* Memory management */
+    struct mutex                mdlMutex;
+    struct list_head            mdlHead;
+
+    /* Kernel process ID. */
+    gctUINT32                   kernelProcessID;
+
+    /* Signal management. */
+
+    /* Lock. */
+    spinlock_t                  signalLock;
+
+    /* signal id database. */
+    gcsINTEGER_DB               signalDB;
+
+    gcsUSER_MAPPING_PTR         userMap;
+
+    /* workqueue for os timer. */
+    struct workqueue_struct *   workqueue;
+
+    /* Allocate extra page to avoid cache overflow */
+    struct page* paddingPage;
+
+    /* Detect unfreed allocation. */
+    atomic_t                    allocateCount;
+
+    struct list_head            allocatorList;
+
+    gcsDEBUGFS_DIR              allocatorDebugfsDir;
+
+    gctBOOL                     allocatorLimitMarker;
+
+    /* Lock for register access check. */
+    spinlock_t                  registerAccessLock;
+
+    /* External power states. */
+    gctBOOL                     powerStates[gcdMAX_GPU_COUNT];
+
+    /* External clock states. */
+    gctBOOL                     clockStates[gcdMAX_GPU_COUNT];
+
+    /* IOMMU. */
+    gckIOMMU                    iommu;
+};
+
+typedef struct _gcsSIGNAL * gcsSIGNAL_PTR;
+typedef struct _gcsSIGNAL
+{
+    /* Kernel sync primitive. */
+    volatile unsigned int done;
+    spinlock_t lock;
+
+    wait_queue_head_t wait;
+
+    /* Manual reset flag. */
+    gctBOOL manualReset;
+
+    /* The reference counter. */
+    atomic_t ref;
+
+    /* The owner of the signal. */
+    gctHANDLE process;
+
+    /* ID. */
+    gctUINT32 id;
+
+#if gcdLINUX_SYNC_FILE
+#ifndef CONFIG_SYNC_FILE
+    /* Parent timeline. */
+    struct sync_timeline * timeline;
+#  else
+    struct dma_fence *fence;
+#  endif
+#endif
+}
+gcsSIGNAL;
+
+typedef struct _gcsOSTIMER * gcsOSTIMER_PTR;
+typedef struct _gcsOSTIMER
+{
+    struct delayed_work     work;
+    gctTIMERFUNCTION        function;
+    gctPOINTER              data;
+} gcsOSTIMER;
+
+gceSTATUS
+gckOS_ImportAllocators(
+    gckOS Os
+    );
+
+gceSTATUS
+gckOS_FreeAllocators(
+    gckOS Os
+    );
+
+/* Reserved memory. */
+gceSTATUS
+gckOS_RequestReservedMemory(
+    gckOS Os,
+    unsigned long Start,
+    unsigned long Size,
+    const char * Name,
+    gctBOOL Requested,
+    void ** MemoryHandle
+    );
+
+void
+gckOS_ReleaseReservedMemory(
+    gckOS Os,
+    void * MemoryHandle
+    );
+
+gceSTATUS
+_ConvertLogical2Physical(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID,
+    IN PLINUX_MDL Mdl,
+    OUT gctPHYS_ADDR_T * Physical
+    );
+
+gctBOOL
+_QuerySignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal
+    );
+
+static inline gctINT
+_GetProcessID(
+    void
+    )
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+    return task_tgid_vnr(current);
+#else
+    return current->tgid;
+#endif
+}
+
+static inline void
+_MemoryBarrier(
+    void
+    )
+{
+#if defined(CONFIG_ARM) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34))
+    dsb();
+#else
+    mb();
+#endif
+}
+
+static inline void
+_Barrier(
+    void
+    )
+{
+    barrier();
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
+static inline int
+is_vmalloc_addr(
+    void *Addr
+    )
+{
+    unsigned long addr = (unsigned long)Addr;
+
+    return addr >= VMALLOC_START && addr < VMALLOC_END;
+}
+#endif
+
+#ifdef CONFIG_IOMMU_SUPPORT
+void
+gckIOMMU_Destory(
+    IN gckOS Os,
+    IN gckIOMMU Iommu
+    );
+
+gceSTATUS
+gckIOMMU_Construct(
+    IN gckOS Os,
+    OUT gckIOMMU * Iommu
+    );
+
+gceSTATUS
+gckIOMMU_Map(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Physical,
+    IN gctUINT32 Bytes
+    );
+
+gceSTATUS
+gckIOMMU_Unmap(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Bytes
+    );
+#endif
+
+#endif /* __gc_hal_kernel_linux_h_ */

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_math.c

@@ -0,0 +1,66 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+
+gctINT
+gckMATH_ModuloInt(
+    IN gctINT X,
+    IN gctINT Y
+    )
+{
+    if(Y ==0) {return 0;}
+    else {return X % Y;}
+}

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_mutex.h

@@ -0,0 +1,89 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _gc_hal_kernel_mutex_h_
+#define _gc_hal_kernel_mutex_h_
+
+#include "gc_hal.h"
+#include <linux/mutex.h>
+
+/* Create a new mutex. */
+#define gckOS_CreateMutex(Os, Mutex)                                \
+({                                                                  \
+    gceSTATUS _status;                                              \
+    gcmkHEADER_ARG("Os=0x%X", Os);                                  \
+                                                                    \
+    /* Validate the arguments. */                                   \
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);                               \
+    gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);                          \
+                                                                    \
+    /* Allocate the mutex structure. */                             \
+    _status = gckOS_Allocate(Os, gcmSIZEOF(struct mutex), Mutex);   \
+                                                                    \
+    if (gcmIS_SUCCESS(_status))                                     \
+    {                                                               \
+        /* Initialize the mutex. */                                 \
+        mutex_init(*(struct mutex **)Mutex);                        \
+    }                                                               \
+                                                                    \
+    /* Return status. */                                            \
+    gcmkFOOTER_ARG("*Mutex=0x%X", *(struct mutex **)Mutex);         \
+    _status;                                                        \
+})
+
+#endif
+
+
+

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.h

@@ -0,0 +1,123 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_os_h_
+#define __gc_hal_kernel_os_h_
+
+typedef struct _LINUX_MDL     LINUX_MDL,     *PLINUX_MDL;
+typedef struct _LINUX_MDL_MAP LINUX_MDL_MAP, *PLINUX_MDL_MAP;
+
+struct _LINUX_MDL_MAP
+{
+    gctINT                  pid;
+
+    /* map references. */
+    gctUINT32               count;
+
+    struct vm_area_struct * vma;
+    gctPOINTER              vmaAddr;
+    gctBOOL                 cacheable;
+
+    struct list_head        link;
+};
+
+struct _LINUX_MDL
+{
+    gckOS                   os;
+
+    atomic_t                refs;
+
+    /* Kernel address. */
+    char *                  addr;
+
+    /* Size and covered page count. */
+    size_t                  bytes;
+    gctINT                  numPages;
+
+    gctBOOL                 contiguous;
+    dma_addr_t              dmaHandle;
+
+    gctBOOL                 cacheable;
+
+    struct mutex            mapsMutex;
+    struct list_head        mapsHead;
+
+    /* Pointer to allocator which allocates memory for this mdl. */
+    void *                  allocator;
+
+    /* Private data used by allocator. */
+    void *                  priv;
+
+    uint                    gid;
+
+    struct list_head        link;
+};
+
+extern PLINUX_MDL_MAP
+FindMdlMap(
+    IN PLINUX_MDL Mdl,
+    IN gctINT PID
+    );
+
+typedef struct _DRIVER_ARGS
+{
+    gctUINT64               InputBuffer;
+    gctUINT64               InputBufferSize;
+    gctUINT64               OutputBuffer;
+    gctUINT64               OutputBufferSize;
+}
+DRIVER_ARGS;
+
+#endif /* __gc_hal_kernel_os_h_ */

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_platform.h

@@ -0,0 +1,307 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _gc_hal_kernel_platform_h_
+#define _gc_hal_kernel_platform_h_
+#include <linux/mm.h>
+#include <linux/platform_device.h>
+#if USE_LINUX_PCIE
+#include <linux/pci.h>
+#endif
+
+typedef struct _gcsMODULE_PARAMETERS
+{
+    gctINT  irqLine;
+    gctUINT registerMemBase;
+    gctUINT registerMemSize;
+    gctINT  irqLine2D;
+    gctUINT registerMemBase2D;
+    gctUINT registerMemSize2D;
+    gctINT  irqLineVG;
+    gctUINT registerMemBaseVG;
+    gctUINT registerMemSizeVG;
+    gctUINT contiguousSize;
+    gctUINT contiguousBase;
+    gctUINT contiguousRequested;
+    gctUINT externalSize;
+    gctUINT externalBase;
+    gctUINT bankSize;
+    gctINT  fastClear;
+    gceCOMPRESSION_OPTION compression;
+    gctINT  powerManagement;
+    gctINT  gpuProfiler;
+    gctINT  signal;
+    gctUINT baseAddress;
+    gctUINT physSize;
+    gctUINT logFileSize;
+    gctUINT recovery;
+    gctUINT stuckDump;
+    gctUINT showArgs;
+    gctUINT gpu3DMinClock;
+    gctBOOL registerMemMapped;
+    gctPOINTER registerMemAddress;
+    gctINT  irqs[gcvCORE_COUNT];
+    gctUINT registerBases[gcvCORE_COUNT];
+    gctUINT registerSizes[gcvCORE_COUNT];
+    gctUINT chipIDs[gcvCORE_COUNT];
+}
+gcsMODULE_PARAMETERS;
+
+typedef struct soc_platform gcsPLATFORM;
+
+typedef struct soc_platform_ops
+{
+
+    /*******************************************************************************
+    **
+    **  adjustParam
+    **
+    **  Override content of arguments, if a argument is not changed here, it will
+    **  keep as default value or value set by insmod command line.
+    */
+    gceSTATUS
+    (*adjustParam)(
+        IN gcsPLATFORM * Platform,
+        OUT gcsMODULE_PARAMETERS *Args
+        );
+
+    /*******************************************************************************
+    **
+    **  getPower
+    **
+    **  Prepare power and clock operation.
+    */
+    gceSTATUS
+    (*getPower)(
+        IN gcsPLATFORM * Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  putPower
+    **
+    **  Finish power and clock operation.
+    */
+    gceSTATUS
+    (*putPower)(
+        IN gcsPLATFORM * Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  setPower
+    **
+    **  Set power state of specified GPU.
+    **
+    **  INPUT:
+    **
+    **      gceCORE GPU
+    **          GPU neeed to config.
+    **
+    **      gceBOOL Enable
+    **          Enable or disable power.
+    */
+    gceSTATUS
+    (*setPower)(
+        IN gcsPLATFORM * Platform,
+        IN gceCORE GPU,
+        IN gctBOOL Enable
+        );
+
+    /*******************************************************************************
+    **
+    **  setClock
+    **
+    **  Set clock state of specified GPU.
+    **
+    **  INPUT:
+    **
+    **      gceCORE GPU
+    **          GPU neeed to config.
+    **
+    **      gceBOOL Enable
+    **          Enable or disable clock.
+    */
+    gceSTATUS
+    (*setClock)(
+        IN gcsPLATFORM * Platform,
+        IN gceCORE GPU,
+        IN gctBOOL Enable
+        );
+
+    /*******************************************************************************
+    **
+    **  reset
+    **
+    **  Reset GPU outside.
+    **
+    **  INPUT:
+    **
+    **      gceCORE GPU
+    **          GPU neeed to reset.
+    */
+    gceSTATUS
+    (*reset)(
+        IN gcsPLATFORM * Platform,
+        IN gceCORE GPU
+        );
+
+    /*******************************************************************************
+    **
+    **  getGPUPhysical
+    **
+    **  Convert CPU physical address to GPU physical address if they are
+    **  different.
+    */
+    gceSTATUS
+    (*getGPUPhysical)(
+        IN gcsPLATFORM * Platform,
+        IN gctPHYS_ADDR_T CPUPhysical,
+        OUT gctPHYS_ADDR_T * GPUPhysical
+        );
+
+    /*******************************************************************************
+    **
+    **  getCPUPhysical
+    **
+    **  Convert GPU physical address to CPU physical address if they are
+    **  different.
+    */
+    gceSTATUS
+    (*getCPUPhysical)(
+        IN gcsPLATFORM * Platform,
+        IN gctUINT32 GPUPhysical,
+        OUT gctPHYS_ADDR_T * CPUPhysical
+        );
+
+    /*******************************************************************************
+    **
+    **  adjustProt
+    **
+    **  Override Prot flag when mapping paged memory to userspace.
+    */
+    gceSTATUS
+    (*adjustProt)(
+        IN struct vm_area_struct * vma
+        );
+
+    /*******************************************************************************
+    **
+    **  shrinkMemory
+    **
+    **  Do something to collect memory, eg, act as oom killer.
+    */
+    gceSTATUS
+    (*shrinkMemory)(
+        IN gcsPLATFORM * Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  cache
+    **
+    **  Cache operation.
+    */
+    gceSTATUS
+    (*cache)(
+        IN gcsPLATFORM * Platform,
+        IN gctUINT32 ProcessID,
+        IN gctPHYS_ADDR Handle,
+        IN gctUINT32 Physical,
+        IN gctPOINTER Logical,
+        IN gctSIZE_T Bytes,
+        IN gceCACHEOPERATION Operation
+        );
+
+    /*******************************************************************************
+    **
+    ** getPolicyID
+    **
+    ** Get policyID for a specified surface type.
+    */
+    gceSTATUS
+    (*getPolicyID)(
+        IN gcsPLATFORM * Platform,
+        IN gceSURF_TYPE Type,
+        OUT gctUINT32_PTR PolicyID,
+        OUT gctUINT32_PTR AXIConfig
+        );
+}
+gcsPLATFORM_OPERATIONS;
+
+struct soc_platform
+{
+#if USE_LINUX_PCIE
+    struct pci_dev* device;
+    struct pci_driver* driver;
+#else
+    struct platform_device* device;
+    struct platform_driver* driver;
+#endif
+
+    const char *name;
+    gcsPLATFORM_OPERATIONS* ops;
+    /* PLATFORM specific flags */
+    gctUINT32  flagBits;
+};
+
+#if USE_LINUX_PCIE
+int soc_platform_init(struct pci_driver *pdrv, gcsPLATFORM **platform);
+#else
+int soc_platform_init(struct platform_driver *pdrv, gcsPLATFORM **platform);
+#endif
+int soc_platform_terminate(gcsPLATFORM *platform);
+
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_security_channel.c

@@ -0,0 +1,426 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include <linux/slab.h>
+
+#include "tee_client_api.h"
+
+#define _GC_OBJ_ZONE gcvZONE_OS
+
+#define GPU3D_UUID   { 0xcc9f80ea, 0xa836, 0x11e3, { 0x9b, 0x07, 0x78, 0x2b, 0xcb, 0x5c, 0xf3, 0xe3 } }
+
+static const TEEC_UUID gpu3d_uuid = GPU3D_UUID;
+TEEC_Context teecContext;
+
+typedef struct _gcsSecurityChannel
+{
+    gckOS               os;
+    TEEC_Session        session;
+    int *               virtual;
+    TEEC_SharedMemory   inputBuffer;
+    gctUINT32           bytes;
+    gctPOINTER          mutex;
+}
+gcsSecurityChannel;
+
+TEEC_SharedMemory *
+gpu3d_allocate_secure_mem(
+    gckOS Os,
+    unsigned int size
+    )
+{
+    TEEC_Result result;
+    TEEC_Context *context = &teecContext;
+    TEEC_SharedMemory *shm = NULL;
+    void *handle = NULL;
+    gctPHYS_ADDR_T phyAddr;
+    gceSTATUS status;
+    gctSIZE_T bytes = size;
+
+    shm = kmalloc(sizeof(TEEC_SharedMemory), GFP_KERNEL);
+
+    if (NULL == shm)
+    {
+        return NULL;
+    }
+
+    memset(shm, 0, sizeof(TEEC_SharedMemory));
+
+    status = gckOS_AllocatePagedMemoryEx(
+                Os,
+                gcvALLOC_FLAG_SECURITY,
+                bytes,
+                gcvNULL,
+                (gctPHYS_ADDR *)&handle);
+
+    if (gcmIS_ERROR(status))
+    {
+         kfree(shm);
+         return NULL;
+    }
+
+    status = gckOS_PhysicalToPhysicalAddress(
+                Os,
+                handle,
+                0,
+                &phyAddr);
+
+    if (gcmIS_ERROR(status))
+    {
+         kfree(shm);
+         return NULL;
+    }
+
+    /* record the handle into shm->user_data */
+    shm->userdata = handle;
+
+    /* [b] Bulk input buffer. */
+    shm->size = size;
+    shm->flags = TEEC_MEM_INPUT;
+
+    /* Use TEE Client API to register the underlying memory buffer. */
+    shm->phyAddr = (void *)(gctUINT32)phyAddr;
+
+    result = TEEC_RegisterSharedMemory(
+            context,
+            shm);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gckOS_FreePagedMemory(Os, (gctPHYS_ADDR)handle, shm->size);
+        kfree(shm);
+        return NULL;
+    }
+
+    return shm;
+}
+
+void gpu3d_release_secure_mem(
+    gckOS Os,
+    void *shm_handle
+    )
+{
+    TEEC_SharedMemory *shm = shm_handle;
+    void * handle;
+
+    if (!shm)
+    {
+        return;
+    }
+
+    handle = shm->userdata;
+
+    TEEC_ReleaseSharedMemory(shm);
+    gckOS_FreePagedMemory(Os, (gctPHYS_ADDR)handle, shm->size);
+
+    kfree(shm);
+
+    return;
+}
+
+static TEEC_Result gpu3d_session_callback(
+    TEEC_Session*   session,
+    uint32_t    commandID,
+    TEEC_Operation* operation,
+    void*   userdata
+    )
+{
+    gcsSecurityChannel *channel = userdata;
+
+    if (channel == gcvNULL)
+    {
+        return TEEC_ERROR_BAD_PARAMETERS;
+    }
+
+    switch (commandID)
+    {
+    case gcvTA_CALLBACK_ALLOC_SECURE_MEM:
+        {
+        uint32_t size = operation->params[0].value.a;
+        TEEC_SharedMemory *shm = NULL;
+
+        shm = gpu3d_allocate_secure_mem(channel->os, size);
+        if (shm == NULL)
+        {
+            return TEEC_ERROR_OUT_OF_MEMORY;
+        }
+
+        /* use the value to save the pointer in client side */
+        operation->params[0].value.a = (uint32_t)shm;
+        operation->params[0].value.b = (uint32_t)shm->phyAddr;
+
+        break;
+        }
+    case gcvTA_CALLBACK_FREE_SECURE_MEM:
+        {
+        TEEC_SharedMemory *shm = (TEEC_SharedMemory *)operation->params[0].value.a;
+
+        gpu3d_release_secure_mem(channel->os, shm);
+        break;
+        }
+    default:
+        break;
+    }
+
+    return TEEC_SUCCESS;
+}
+
+gceSTATUS
+gckOS_OpenSecurityChannel(
+    IN gckOS Os,
+    IN gceCORE GPU,
+    OUT gctUINT32 *Channel
+    )
+{
+    gceSTATUS status;
+    TEEC_Result result;
+    static bool initialized = gcvFALSE;
+    gcsSecurityChannel *channel = gcvNULL;
+
+    TEEC_Operation operation = {0};
+
+    /* Connect to TEE. */
+    if (initialized == gcvFALSE)
+    {
+        result = TEEC_InitializeContext(NULL, &teecContext);
+
+        if (result != TEEC_SUCCESS)
+        {
+            gcmkONERROR(gcvSTATUS_CHIP_NOT_READY);
+        }
+
+        initialized = gcvTRUE;
+    }
+
+    /* Construct channel. */
+    gcmkONERROR(
+        gckOS_Allocate(Os, gcmSIZEOF(*channel), (gctPOINTER *)&channel));
+
+    gckOS_ZeroMemory(channel, gcmSIZEOF(gcsSecurityChannel));
+
+    channel->os = Os;
+
+    gcmkONERROR(gckOS_CreateMutex(Os, &channel->mutex));
+
+    /* Allocate shared memory for passing gcTA_INTERFACE. */
+    channel->bytes = gcmSIZEOF(gcsTA_INTERFACE);
+    channel->virtual = kmalloc(channel->bytes, GFP_KERNEL | __GFP_NOWARN);
+
+    if (!channel->virtual)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    channel->inputBuffer.size    = channel->bytes;
+    channel->inputBuffer.flags   = TEEC_MEM_INPUT | TEEC_MEM_OUTPUT;
+    channel->inputBuffer.phyAddr = (void *)virt_to_phys(channel->virtual);
+
+    result = TEEC_RegisterSharedMemory(&teecContext, &channel->inputBuffer);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    operation.paramTypes = TEEC_PARAM_TYPES(
+            TEEC_VALUE_INPUT,
+            TEEC_NONE,
+            TEEC_NONE,
+            TEEC_NONE);
+
+    operation.params[0].value.a = GPU;
+
+    /* Open session with TEE application. */
+    result = TEEC_OpenSession(
+                &teecContext,
+                &channel->session,
+                &gpu3d_uuid,
+                TEEC_LOGIN_USER,
+                NULL,
+                &operation,
+                NULL);
+
+    /* Prepare callback. */
+    TEEC_RegisterCallback(&channel->session, gpu3d_session_callback, channel);
+
+    *Channel = (gctUINT32)channel;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (channel)
+    {
+        if (channel->virtual)
+        {
+        }
+
+        if (channel->mutex)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Os, channel->mutex));
+        }
+
+        gcmkVERIFY_OK(gckOS_Free(Os, channel));
+    }
+
+    return status;
+}
+
+gceSTATUS
+gckOS_CloseSecurityChannel(
+    IN gctUINT32 Channel
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_CallSecurityService(
+    IN gctUINT32 Channel,
+    IN gcsTA_INTERFACE *Interface
+    )
+{
+    gceSTATUS status;
+    TEEC_Result result;
+    gcsSecurityChannel *channel = (gcsSecurityChannel *)Channel;
+    TEEC_Operation operation = {0};
+
+    gcmkHEADER();
+    gcmkVERIFY_ARGUMENT(Channel != 0);
+
+    gckOS_AcquireMutex(channel->os, channel->mutex, gcvINFINITE);
+
+    gckOS_MemCopy(channel->virtual, Interface, channel->bytes);
+
+    operation.paramTypes = TEEC_PARAM_TYPES(
+            TEEC_MEMREF_PARTIAL_INPUT,
+            TEEC_NONE,
+            TEEC_NONE,
+            TEEC_NONE);
+
+    /* Note: we use the updated size in the MemRef output by the encryption. */
+    operation.params[0].memref.parent = &channel->inputBuffer;
+    operation.params[0].memref.offset = 0;
+    operation.params[0].memref.size = sizeof(gcsTA_INTERFACE);
+    operation.started = true;
+
+    /* Start the commit command within the TEE application. */
+    result = TEEC_InvokeCommand(
+            &channel->session,
+            gcvTA_COMMAND_DISPATCH,
+            &operation,
+            NULL);
+
+    gckOS_MemCopy(Interface, channel->virtual, channel->bytes);
+
+    gckOS_ReleaseMutex(channel->os, channel->mutex);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_InitSecurityChannel(
+    IN gctUINT32 Channel
+    )
+{
+    gceSTATUS status;
+    TEEC_Result result;
+    gcsSecurityChannel *channel = (gcsSecurityChannel *)Channel;
+    TEEC_Operation operation = {0};
+
+    gcmkHEADER();
+    gcmkVERIFY_ARGUMENT(Channel != 0);
+
+    operation.paramTypes = TEEC_PARAM_TYPES(
+            TEEC_MEMREF_PARTIAL_INPUT,
+            TEEC_NONE,
+            TEEC_NONE,
+            TEEC_NONE);
+
+    /* Note: we use the updated size in the MemRef output by the encryption. */
+    operation.params[0].memref.parent = &channel->inputBuffer;
+    operation.params[0].memref.offset = 0;
+    operation.params[0].memref.size = gcmSIZEOF(gcsTA_INTERFACE);
+    operation.started = true;
+
+    /* Start the commit command within the TEE application. */
+    result = TEEC_InvokeCommand(
+            &channel->session,
+            gcvTA_COMMAND_INIT,
+            &operation,
+            NULL);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_security_channel_emulator.c

@@ -0,0 +1,116 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+
+#define _GC_OBJ_ZONE gcvZONE_OS
+
+#if gcdENABLE_TRUST_APPLICATION
+
+gceSTATUS
+gckOS_OpenSecurityChannel(
+    IN gckOS Os,
+    IN gceCORE Core,
+    OUT gctUINT32 *Channel
+    )
+{
+    *Channel = Core + 1;
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_InitSecurityChannel(
+    OUT gctUINT32 Channel
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_CloseSecurityChannel(
+    IN gctUINT32 Channel
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+extern gceSTATUS
+TAEmulator (
+    gceCORE,
+    void *
+    );
+
+gceSTATUS
+gckOS_CallSecurityService(
+    IN gctUINT32 Channel,
+    IN gcsTA_INTERFACE *Interface
+    )
+{
+    gceCORE core;
+    gceSTATUS status;
+    gcmkHEADER();
+    gcmkVERIFY_ARGUMENT(Channel != 0);
+
+    core = (gceCORE)(Channel - 1);
+
+    TAEmulator(core, Interface);
+
+    status = Interface->result;
+
+    gcmkFOOTER();
+    return status;
+}
+
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_sync.c

@@ -0,0 +1,378 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include <gc_hal.h>
+#include <gc_hal_base.h>
+
+#if gcdLINUX_SYNC_FILE
+
+#include <linux/kernel.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/syscalls.h>
+#include <linux/uaccess.h>
+#include <linux/slab.h>
+
+#include "gc_hal_kernel_sync.h"
+#include "gc_hal_kernel_linux.h"
+
+#ifndef CONFIG_SYNC_FILE
+
+static struct sync_pt * viv_sync_pt_dup(struct sync_pt *sync_pt)
+{
+    gceSTATUS status;
+    struct viv_sync_pt *pt;
+    struct viv_sync_pt *src;
+    struct viv_sync_timeline *obj;
+
+    src = (struct viv_sync_pt *)sync_pt;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)
+    obj = (struct viv_sync_timeline *)sync_pt_parent(sync_pt);
+#else
+    obj = (struct viv_sync_timeline *)sync_pt->parent;
+#endif
+
+    /* Create the new sync_pt. */
+    pt = (struct viv_sync_pt *)
+        sync_pt_create(&obj->obj, sizeof(struct viv_sync_pt));
+
+    pt->stamp  = src->stamp;
+
+    /* Reference signal. */
+    status = gckOS_MapSignal(obj->os,
+                             src->signal,
+                             gcvNULL /* (gctHANDLE) _GetProcessID() */,
+                             &pt->signal);
+
+    if (gcmIS_ERROR(status)) {
+        sync_pt_free((struct sync_pt *)pt);
+        return NULL;
+    }
+
+    return (struct sync_pt *)pt;
+}
+
+static int viv_sync_pt_has_signaled(struct sync_pt *sync_pt)
+{
+    gceSTATUS status;
+    struct viv_sync_pt *pt;
+    struct viv_sync_timeline *obj;
+
+    pt  = (struct viv_sync_pt *)sync_pt;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)
+    obj = (struct viv_sync_timeline *)sync_pt_parent(sync_pt);
+#else
+    obj = (struct viv_sync_timeline *)sync_pt->parent;
+#endif
+
+    status = _QuerySignal(obj->os, pt->signal);
+
+    if (gcmIS_ERROR(status)) {
+        /* Error. */
+        return -1;
+    }
+
+    return (int) status;
+}
+
+static int viv_sync_pt_compare(struct sync_pt *a, struct sync_pt *b)
+{
+    int ret;
+    struct viv_sync_pt *pt1 = (struct viv_sync_pt *)a;
+    struct viv_sync_pt *pt2 = (struct viv_sync_pt *)b;
+
+    ret = (pt1->stamp <  pt2->stamp) ? -1
+        : (pt1->stamp == pt2->stamp) ?  0
+        : 1;
+
+    return ret;
+}
+
+static void viv_sync_pt_free(struct sync_pt *sync_pt)
+{
+    struct viv_sync_pt *pt;
+    struct viv_sync_timeline *obj;
+
+    pt  = (struct viv_sync_pt *)sync_pt;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)
+    obj = (struct viv_sync_timeline *)sync_pt_parent(sync_pt);
+#else
+    obj = (struct viv_sync_timeline *)sync_pt->parent;
+#endif
+
+    gckOS_DestroySignal(obj->os, pt->signal);
+}
+
+static void viv_timeline_value_str(struct sync_timeline *timeline,
+                    char *str, int size)
+{
+    struct viv_sync_timeline *obj;
+
+    obj = (struct viv_sync_timeline *)timeline;
+    snprintf(str, size, "stamp_%llu", obj->stamp);
+}
+
+static void viv_pt_value_str(struct sync_pt *sync_pt, char *str, int size)
+{
+    struct viv_sync_pt *pt;
+
+    pt = (struct viv_sync_pt *)sync_pt;
+    snprintf(str, size, "signal_%lu@stamp_%llu",
+            (unsigned long)pt->signal, pt->stamp);
+}
+
+static struct sync_timeline_ops viv_timeline_ops =
+{
+    .driver_name = "viv_gpu_sync",
+    .dup = viv_sync_pt_dup,
+    .has_signaled = viv_sync_pt_has_signaled,
+    .compare = viv_sync_pt_compare,
+    .free_pt = viv_sync_pt_free,
+    .timeline_value_str = viv_timeline_value_str,
+    .pt_value_str = viv_pt_value_str,
+};
+
+struct viv_sync_timeline * viv_sync_timeline_create(const char *name, gckOS os)
+{
+    struct viv_sync_timeline * obj;
+
+    obj = (struct viv_sync_timeline *)
+        sync_timeline_create(&viv_timeline_ops, sizeof(struct viv_sync_timeline), name);
+
+    obj->os    = os;
+    obj->stamp = 0;
+
+    return obj;
+}
+
+struct sync_pt * viv_sync_pt_create(struct viv_sync_timeline *obj,
+                        gctSIGNAL Signal)
+{
+    gceSTATUS status;
+    struct viv_sync_pt *pt;
+
+    pt = (struct viv_sync_pt *)
+        sync_pt_create(&obj->obj, sizeof(struct viv_sync_pt));
+
+    pt->stamp = obj->stamp++;
+
+    /* Dup signal. */
+    status = gckOS_MapSignal(obj->os,
+                             Signal,
+                             gcvNULL /* (gctHANDLE) _GetProcessID() */,
+                             &pt->signal);
+
+    if (gcmIS_ERROR(status)) {
+        sync_pt_free((struct sync_pt *)pt);
+        return NULL;
+    }
+
+    return (struct sync_pt *)pt;
+}
+
+#else
+
+struct viv_sync_timeline * viv_sync_timeline_create(const char *name, gckOS Os)
+{
+    struct viv_sync_timeline *timeline;
+
+    timeline = kmalloc(sizeof(struct viv_sync_timeline),
+                    gcdNOWARN | GFP_KERNEL);
+
+    if (!timeline)
+        return NULL;
+
+    strncpy(timeline->name, name, sizeof(timeline->name) - 1);
+    timeline->context = dma_fence_context_alloc(1);
+    atomic64_set(&timeline->seqno, 0);
+    timeline->os = Os;
+
+    return timeline;
+}
+
+void viv_sync_timeline_destroy(struct viv_sync_timeline *timeline)
+{
+    kfree(timeline);
+}
+
+static const char * viv_fence_get_driver_name(struct dma_fence *fence)
+{
+    return "viv_gpu_sync";
+}
+
+static const char * viv_fence_get_timeline_name(struct dma_fence *fence)
+{
+    struct viv_fence *f = (struct viv_fence *)fence;
+    return f->parent->name;
+}
+
+/* Same as fence_signaled. */
+static inline bool __viv_fence_signaled(struct dma_fence *fence)
+{
+    struct viv_fence *f = (struct viv_fence *)fence;
+    struct viv_sync_timeline *timeline = f->parent;
+    gceSTATUS status;
+
+    status = _QuerySignal(timeline->os, f->signal);
+
+    return (status == gcvSTATUS_TRUE) ? true : false;
+}
+
+static bool viv_fence_enable_signaling(struct dma_fence *fence)
+{
+    /* fence is locked already. */
+    return !__viv_fence_signaled(fence);
+}
+
+static bool viv_fence_signaled(struct dma_fence *fence)
+{
+    /* fence could be locked, could be not. */
+    return __viv_fence_signaled(fence);
+}
+
+static void viv_fence_release(struct dma_fence *fence)
+{
+    struct viv_fence *f = (struct viv_fence *)fence;
+    struct viv_sync_timeline *timeline = f->parent;
+
+    if (f->signal)
+        gckOS_DestroySignal(timeline->os, f->signal);
+
+    kfree(fence);
+}
+
+static struct dma_fence_ops viv_fence_ops =
+{
+    .get_driver_name = viv_fence_get_driver_name,
+    .get_timeline_name = viv_fence_get_timeline_name,
+    .enable_signaling = viv_fence_enable_signaling,
+    .signaled = viv_fence_signaled,
+    .wait = dma_fence_default_wait,
+    .release = viv_fence_release,
+};
+
+struct dma_fence * viv_fence_create(struct viv_sync_timeline *timeline,
+                    gcsSIGNAL *signal)
+{
+    gceSTATUS status;
+    struct viv_fence *fence;
+    struct dma_fence *old_fence = NULL;
+    unsigned seqno;
+
+    fence = kzalloc(sizeof(struct viv_fence), gcdNOWARN | GFP_KERNEL);
+
+    if (!fence)
+        return NULL;
+
+    /* Reference signal in fence. */
+    status = gckOS_MapSignal(timeline->os, (gctSIGNAL)(uintptr_t)signal->id,
+                NULL, &fence->signal);
+
+    if (gcmIS_ERROR(status)) {
+        kfree(fence);
+        return NULL;
+    }
+
+    spin_lock_init(&fence->lock);
+
+    fence->parent = timeline;
+
+    seqno = (unsigned)atomic64_inc_return(&timeline->seqno);
+
+    dma_fence_init((struct dma_fence *)fence, &viv_fence_ops,
+            &fence->lock, timeline->context, seqno);
+
+    /*
+     * Reference fence in signal.
+     * Be aware of recursive reference!!
+     */
+    spin_lock(&signal->lock);
+
+    if (signal->fence) {
+        old_fence = signal->fence;
+        signal->fence = NULL;
+    }
+
+    if (!signal->done) {
+        signal->fence = (struct dma_fence*)fence;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,9,68)
+        dma_fence_get((struct dma_fence*)fence);
+#endif
+    }
+
+    spin_unlock(&signal->lock);
+
+    if (old_fence)
+        dma_fence_put(old_fence);
+
+    if (!signal->fence) {
+        /* Fence already signaled. */
+        gckOS_DestroySignal(timeline->os, fence->signal);
+        fence->signal = NULL;
+
+        dma_fence_signal_locked((struct dma_fence*)fence);
+        dma_fence_put((struct dma_fence*)fence);
+        fence = NULL;
+    }
+
+    return (struct dma_fence*)fence;
+}
+
+#endif
+
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_sync.h

@@ -0,0 +1,151 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_sync_h_
+#define __gc_hal_kernel_sync_h_
+
+#include <linux/types.h>
+
+#ifndef CONFIG_SYNC_FILE
+
+/* sync.h is in drivers/staging/android/ for now. */
+#include <sync.h>
+
+#include <gc_hal.h>
+#include <gc_hal_base.h>
+
+struct viv_sync_timeline
+{
+    /* Parent object. */
+    struct sync_timeline obj;
+
+    /* Timestamp when sync_pt is created. */
+    gctUINT64 stamp;
+
+    /* Pointer to os struct. */
+    gckOS os;
+};
+
+
+struct viv_sync_pt
+{
+    /* Parent object. */
+    struct sync_pt pt;
+
+    /* Reference signal. */
+    gctSIGNAL signal;
+
+    /* Timestamp when sync_pt is created. */
+    gctUINT64 stamp;
+};
+
+/* Create viv_sync_timeline object. */
+struct viv_sync_timeline * viv_sync_timeline_create(const char *name, gckOS Os);
+
+/* Create viv_sync_pt object. */
+struct sync_pt * viv_sync_pt_create(struct viv_sync_timeline *obj,
+                        gctSIGNAL signal);
+
+#else
+
+#include <linux/sync_file.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0)
+#  include <linux/fence.h>
+#  include <linux/fence-array.h>
+#else
+#  include <linux/dma-fence.h>
+#  include <linux/dma-fence-array.h>
+#endif
+
+#include <gc_hal.h>
+#include <gc_hal_base.h>
+#include "gc_hal_kernel_linux.h"
+
+struct viv_sync_timeline
+{
+    char name[64];
+
+    /* Parent object. */
+    u64 context;
+
+    /* Timestamp when sync_pt is created. */
+    atomic64_t seqno;
+
+    /* Pointer to os struct. */
+    gckOS os;
+};
+
+struct viv_fence
+{
+    /* must be the first. */
+    struct dma_fence base;
+    spinlock_t lock;
+
+    struct viv_sync_timeline *parent;
+
+    /* link with signal. */
+    gctSIGNAL signal;
+};
+
+struct viv_sync_timeline * viv_sync_timeline_create(const char *name, gckOS Os);
+
+void viv_sync_timeline_destroy(struct viv_sync_timeline *timeline);
+
+struct dma_fence * viv_fence_create(struct viv_sync_timeline *timeline,
+                    gcsSIGNAL *signal);
+
+#endif
+
+#endif /* __gc_hal_kernel_sync_h_ */

drivers/mxc/gpu-viv/hal/os/linux/kernel/platform/default/gc_hal_kernel_platform_default.c

@@ -0,0 +1,146 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_platform.h"
+
+
+gceSTATUS
+_AdjustParam(
+    IN gcsPLATFORM *Platform,
+    OUT gcsMODULE_PARAMETERS *Args
+    )
+{
+#if USE_LINUX_PCIE
+    struct pci_dev *pdev = Platform->device;
+    unsigned char   irqline = pdev->irq;
+
+    if ((Args->irqLine2D != -1) && (Args->irqLine2D != irqline))
+    {
+        Args->irqLine2D = irqline;
+    }
+    if ((Args->irqLine != -1) && (Args->irqLine != irqline))
+    {
+        Args->irqLine = irqline;
+    }
+#endif
+    return gcvSTATUS_OK;
+}
+
+static struct soc_platform_ops default_ops =
+{
+    .adjustParam   = _AdjustParam,
+};
+
+static struct soc_platform default_platform =
+{
+    .name = __FILE__,
+    .ops  = &default_ops,
+};
+
+#if USE_LINUX_PCIE
+
+int soc_platform_init(struct pci_driver *pdrv,
+            struct soc_platform **platform)
+{
+    *platform = &default_platform;
+    return 0;
+}
+
+int soc_platform_terminate(struct soc_platform *platform)
+{
+    return 0;
+}
+
+#else
+static struct platform_device *default_dev;
+
+int soc_platform_init(struct platform_driver *pdrv,
+            struct soc_platform **platform)
+{
+    int ret;
+    default_dev = platform_device_alloc(pdrv->driver.name, -1);
+
+    if (!default_dev) {
+        printk(KERN_ERR "galcore: platform_device_alloc failed.\n");
+        return -ENOMEM;
+    }
+
+    /* Add device */
+    ret = platform_device_add(default_dev);
+    if (ret) {
+        printk(KERN_ERR "galcore: platform_device_add failed.\n");
+        goto put_dev;
+    }
+
+    *platform = &default_platform;
+    return 0;
+
+put_dev:
+    platform_device_put(default_dev);
+
+    return ret;
+}
+
+int soc_platform_terminate(struct soc_platform *platform)
+{
+    if (default_dev) {
+        platform_device_unregister(default_dev);
+        default_dev = NULL;
+    }
+
+    return 0;
+}
+#endif

drivers/mxc/gpu-viv/hal/os/linux/kernel/platform/freescale/gc_hal_kernel_platform_imx.config

@@ -0,0 +1,29 @@
+EXTRA_CFLAGS += -DgcdDEFAULT_CONTIGUOUS_SIZE=~0U
+EXTRA_CFLAGS += -DgcdFSL_CONTIGUOUS_SIZE=134217728
+
+ifneq ($(CONFIG_ANDROID),)
+# build for android
+EXTRA_CFLAGS += -DgcdANDROID
+endif
+
+EXTRA_CFLAGS += -DgcdANDROID_NATIVE_FENCE_SYNC=2
+
+ifeq ($(CONFIG_SYNC)$(CONFIG_SYNC_FILE),)
+$(warn CONFIG_SYNC or CONFIG_SYNC_FILE is not set in kernel config)
+$(warn Android native fence sync requires CONFIG_SYNC or CONFIG_SYNC_FILE)
+endif
+
+ifneq ($(CONFIG_ARCH_FSL_IMX8QM),)
+EXTRA_CFLAGS += -DIMX8_SCU_CONTROL=1 -DIMX8_PHYS_BASE=0x80000000 -DIMX8_PHYS_SIZE=0x80000000
+endif
+
+EXTRA_CFLAGS += -DLINUX_CMA_FSL=1
+ALLOCATOR_ARRAY_H_LOCATION := $(OS_KERNEL_DIR)/allocator/freescale
+CUSTOMER_ALLOCATOR_OBJS := $(ALLOCATOR_ARRAY_H_LOCATION)/gc_hal_kernel_allocator_cma.o
+
+EXTRA_CFLAGS += -DCLASS_NAME=\"gpu_class\"
+
+EXTRA_CFLAGS += -DgcdGPU_2D_TIMEOUT=20000
+EXTRA_CFLAGS += -DNO_DMA_COHERENT=1
+EXTRA_CFLAGS += -DgcdSYS_FREE_MEMORY_LIMIT=51200
+

drivers/mxc/gpu-viv/hal/security_v1/gc_hal_ta.c

@@ -0,0 +1,348 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_types.h"
+#include "gc_hal_base.h"
+#include "gc_hal_security_interface.h"
+#include "gc_hal_ta.h"
+#include "gc_hal.h"
+
+#define _GC_OBJ_ZONE gcvZONE_KERNEL
+
+/*
+* Responsibility of TA (trust application).
+* 1) Start FE.
+*   When non secure driver asks for start FE. TA enable MMU and start FE.
+*   TA always execute MMU enable processes because it has no idea whether
+*   GPU has been power off.
+*
+* 2) Setup page table
+*   When non secure driver asks for set up GPU address to physical address
+*   mapping, TA check the attribute of physical address and attribute of
+*   GPU address to make sure they are match. Then it change page table.
+*
+*/
+
+gcTA_MMU SharedMmu = gcvNULL;
+
+/*******************************************************************************
+**
+**  gcTA_Construct
+**
+**  Construct a new gcTA object.
+*/
+int
+gcTA_Construct(
+    IN gctaOS Os,
+    IN gceCORE Core,
+    OUT gcTA *TA
+    )
+{
+    gceSTATUS status;
+    gctPOINTER pointer;
+    gcTA ta = gcvNULL;
+
+    gcmkHEADER();
+    gcmkVERIFY_ARGUMENT(TA != gcvNULL);
+
+    /* Construct a gcTA object. */
+    gcmkONERROR(gctaOS_Allocate(sizeof(struct _gcTA), &pointer));
+
+    gctaOS_ZeroMemory(pointer, sizeof(struct _gcTA));
+
+    ta = (gcTA)pointer;
+
+    ta->os = Os;
+    ta->core = Core;
+
+    gcmkONERROR(gctaHARDWARE_Construct(ta, &ta->hardware));
+
+    if (gctaHARDWARE_IsFeatureAvailable(ta->hardware, gcvFEATURE_SECURITY))
+    {
+        if (SharedMmu == gcvNULL)
+        {
+            gcmkONERROR(gctaMMU_Construct(ta, &ta->mmu));
+
+            /* Record shared MMU. */
+            SharedMmu = ta->mmu;
+            ta->destoryMmu = gcvTRUE;
+        }
+        else
+        {
+            ta->mmu = SharedMmu;
+            ta->destoryMmu = gcvFALSE;
+        }
+
+        gcmkONERROR(gctaHARDWARE_PrepareFunctions(ta->hardware));
+    }
+
+    *TA = ta;
+
+    gcmkFOOTER_NO();
+    return 0;
+
+OnError:
+    if (ta)
+    {
+        if (ta->mmu && ta->destoryMmu)
+        {
+            gcmkVERIFY_OK(gctaMMU_Destory(ta->mmu));
+        }
+
+        if (ta->hardware)
+        {
+            gcmkVERIFY_OK(gctaHARDWARE_Destroy(ta->hardware));
+        }
+
+        gcmkVERIFY_OK(gctaOS_Free(ta));
+    }
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gcTA_Construct
+**
+**  Destroy a gcTA object.
+*/
+int
+gcTA_Destroy(
+    IN gcTA TA
+    )
+{
+    if (TA->mmu && TA->destoryMmu)
+    {
+        gcmkVERIFY_OK(gctaMMU_Destory(TA->mmu));
+    }
+
+    if (TA->hardware)
+    {
+        gcmkVERIFY_OK(gctaHARDWARE_Destroy(TA->hardware));
+    }
+
+    gcmkVERIFY_OK(gctaOS_Free(TA));
+
+    /* Destroy. */
+    return 0;
+}
+
+
+/*
+*   Map a scatter gather list into gpu address space.
+*
+*/
+gceSTATUS
+gcTA_MapMemory(
+    IN gcTA TA,
+    IN gctUINT32 *PhysicalArray,
+    IN gctPHYS_ADDR_T Physical,
+    IN gctUINT32 PageCount,
+    OUT gctUINT32 *GPUAddress
+    )
+{
+    gceSTATUS status;
+    gcTA_MMU mmu;
+    gctUINT32 pageCount = PageCount;
+    gctUINT32 i;
+    gctUINT32 gpuAddress = *GPUAddress;
+    gctBOOL mtlbSecure = gcvFALSE;
+    gctBOOL physicalSecure = gcvFALSE;
+
+    mmu = TA->mmu;
+
+    /* Fill in page table. */
+    for (i = 0; i < pageCount; i++)
+    {
+        gctUINT32 physical;
+        gctUINT32_PTR entry;
+
+        if (PhysicalArray)
+        {
+            physical = PhysicalArray[i];
+        }
+        else
+        {
+            physical = (gctUINT32)Physical + 4096 * i;
+        }
+
+        gcmkONERROR(gctaMMU_GetPageEntry(mmu, gpuAddress, gcvNULL, &entry, &mtlbSecure));
+
+        status = gctaOS_IsPhysicalSecure(TA->os, physical, &physicalSecure);
+
+        if (gcmIS_SUCCESS(status) && physicalSecure != mtlbSecure)
+        {
+            gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+        }
+
+        gctaMMU_SetPage(mmu, physical, entry);
+
+        gpuAddress += 4096;
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gceSTATUS
+gcTA_UnmapMemory(
+    IN gcTA TA,
+    IN gctUINT32 GPUAddress,
+    IN gctUINT32 PageCount
+    )
+{
+    gceSTATUS status;
+
+    gcmkONERROR(gctaMMU_FreePages(TA->mmu, GPUAddress, PageCount));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gceSTATUS
+gcTA_StartCommand(
+    IN gcTA TA,
+    IN gctUINT32 Address,
+    IN gctUINT32 Bytes
+    )
+{
+    gctaHARDWARE_Execute(TA, Address, Bytes);
+    return gcvSTATUS_OK;
+}
+
+int
+gcTA_Dispatch(
+    IN gcTA TA,
+    IN gcsTA_INTERFACE * Interface
+    )
+{
+    int command = Interface->command;
+
+    gceSTATUS status = gcvSTATUS_OK;
+
+    switch (command)
+    {
+    case KERNEL_START_COMMAND:
+        /* Enable MMU every time FE starts.
+        ** Because if normal world stop GPU and power off GPU, MMU states is reset.
+        */
+        gcmkONERROR(gctaHARDWARE_SetMMU(TA->hardware, TA->mmu->mtlbLogical));
+
+        gcmkONERROR(gcTA_StartCommand(
+            TA,
+            Interface->u.StartCommand.address,
+            Interface->u.StartCommand.bytes
+            ));
+        break;
+
+    case KERNEL_MAP_MEMORY:
+        gcmkONERROR(gcTA_MapMemory(
+            TA,
+            Interface->u.MapMemory.physicals,
+            Interface->u.MapMemory.physical,
+            Interface->u.MapMemory.pageCount,
+            &Interface->u.MapMemory.gpuAddress
+            ));
+
+        break;
+
+    case KERNEL_UNMAP_MEMORY:
+        status = gcTA_UnmapMemory(
+            TA,
+            Interface->u.UnmapMemory.gpuAddress,
+            Interface->u.UnmapMemory.pageCount
+            );
+        break;
+
+    case KERNEL_DUMP_MMU_EXCEPTION:
+        status = gctaHARDWARE_DumpMMUException(TA->hardware);
+        break;
+
+    case KERNEL_HANDLE_MMU_EXCEPTION:
+        status = gctaHARDWARE_HandleMMUException(
+            TA->hardware,
+            Interface->u.HandleMMUException.mmuStatus,
+            Interface->u.HandleMMUException.physical,
+            Interface->u.HandleMMUException.gpuAddress
+            );
+        break;
+
+    case KERNEL_READ_MMU_EXCEPTION:
+        status = gctaHARDWARE_ReadMMUException(
+            TA->hardware,
+            &Interface->u.ReadMMUException.mmuStatus,
+            &Interface->u.ReadMMUException.mmuException
+            );
+        break;
+
+    default:
+        gcmkASSERT(0);
+
+        status = gcvSTATUS_INVALID_ARGUMENT;
+        break;
+    }
+
+OnError:
+    Interface->result = status;
+
+    return 0;
+}
+
+
+

drivers/mxc/gpu-viv/hal/security_v1/gc_hal_ta.h

@@ -0,0 +1,373 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _GC_HAL_TA_H_
+#define _GC_HAL_TA_H_
+#include "gc_hal_types.h"
+#include "gc_hal_security_interface.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef struct _gctaOS          * gctaOS;
+typedef struct _gcTA            * gcTA;
+
+typedef struct _gcTA_HARDWARE   * gcTA_HARDWARE;
+typedef struct _gcTA_MMU        * gcTA_MMU;
+
+/*
+    Trust Application is a object needed to be created as a context in trust zone.
+    One client for a core.
+*/
+typedef struct _gcTA {
+    /* gctaOS object */
+    gctaOS          os;
+
+    gceCORE         core;
+
+    gcTA_MMU        mmu;
+
+    gcTA_HARDWARE   hardware;
+
+    gctBOOL         destoryMmu;
+} gcsTA;
+
+typedef struct _gcTA_MMU
+{
+    gctaOS          os;
+
+    gctSIZE_T       mtlbBytes;
+    gctPOINTER      mtlbLogical;
+    gctPHYS_ADDR    mtlbPhysical;
+
+    gctPOINTER      stlbs;
+
+    gctPOINTER      safePageLogical;
+    gctPHYS_ADDR    safePagePhysical;
+
+    gctPOINTER      nonSecureSafePageLogical;
+    gctPHYS_ADDR    nonSecureSafePagePhysical;
+
+    gctPOINTER      mutex;
+}
+gcsTA_MMU;
+
+gceSTATUS HALDECL
+TAEmulator(
+    gceCORE Core,
+    void * Interface
+    );
+
+int
+gcTA_Construct(
+    IN gctaOS Os,
+    IN gceCORE Core,
+    OUT gcTA *TA
+);
+
+int
+gcTA_Destroy(
+    IN gcTA TA
+);
+
+int
+gcTA_Dispatch(
+    IN gcTA TA,
+    IN OUT gcsTA_INTERFACE * Interface
+);
+
+/*************************************
+* Porting layer
+*/
+
+gceSTATUS
+gctaOS_ConstructOS(
+    IN gckOS Os,
+    OUT gctaOS *TAos
+    );
+
+gceSTATUS
+gctaOS_DestroyOS(
+    IN gctaOS Os
+    );
+
+gceSTATUS
+gctaOS_Allocate(
+    IN gctUINT32 Bytes,
+    OUT gctPOINTER *Pointer
+    );
+
+gceSTATUS
+gctaOS_Free(
+    IN gctPOINTER Pointer
+    );
+
+gceSTATUS
+gctaOS_AllocateSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T *Bytes,
+    OUT gctPOINTER *Logical,
+    OUT gctPOINTER *Physical
+    );
+
+gceSTATUS
+gctaOS_FreeSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T  Bytes,
+    IN gctPOINTER Logical,
+    OUT gctPOINTER Physical
+    );
+
+gceSTATUS
+gctaOS_AllocateNonSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T *Bytes,
+    OUT gctPOINTER *Logical,
+    OUT gctPOINTER *Physical
+    );
+
+gceSTATUS
+gctaOS_FreeNonSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T  Bytes,
+    IN gctPOINTER Logical,
+    OUT gctPOINTER Physical
+    );
+
+
+
+gceSTATUS
+gctaOS_GetPhysicalAddress(
+    IN gctaOS Os,
+    IN gctPOINTER Logical,
+    OUT gctPHYS_ADDR_T * Physical
+    );
+
+gceSTATUS gctaOS_WriteRegister(
+    IN gctaOS Os, IN gceCORE Core,
+    IN gctUINT32 Address,
+    IN gctUINT32 Data
+    );
+
+gceSTATUS gctaOS_ReadRegister(
+    IN gctaOS Os, IN gceCORE Core,
+    IN gctUINT32 Address,
+    IN gctUINT32 *Data
+    );
+
+gceSTATUS
+gctaOS_MemCopy(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT8_PTR Src,
+    IN gctUINT32 Bytes
+    );
+
+gceSTATUS
+gctaOS_ZeroMemory(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    );
+
+void
+gctaOS_CacheFlush(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    );
+
+void
+gctaOS_CacheClean(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    );
+
+void
+gctaOS_CacheInvalidate(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    );
+
+gceSTATUS
+gctaOS_IsPhysicalSecure(
+    IN gctaOS Os,
+    IN gctUINT32 Physical,
+    OUT gctBOOL *Secure
+    );
+
+gceSTATUS
+gctaOS_Delay(
+    IN gctaOS Os,
+    IN gctUINT32 Delay
+    );
+
+gceSTATUS
+gctaOS_SetGPUPower(
+    IN gctaOS Os,
+    IN gctUINT32 Core,
+    IN gctBOOL Clock,
+    IN gctBOOL Power
+    );
+
+/*
+** gctaHARDWARE
+*/
+gceSTATUS
+gctaHARDWARE_Construct(
+    IN gcTA TA,
+    OUT gcTA_HARDWARE * Hardware
+    );
+
+gceSTATUS
+gctaHARDWARE_Destroy(
+    IN gcTA_HARDWARE Hardware
+    );
+
+gceSTATUS
+gctaHARDWARE_Execute(
+    IN gcTA TA,
+    IN gctUINT32 Address,
+    IN gctUINT32 Bytes
+    );
+
+gceSTATUS
+gctaHARDWARE_End(
+    IN gcTA_HARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    );
+
+gceSTATUS
+gctaHARDWARE_SetMMU(
+    IN gcTA_HARDWARE Hardware,
+    IN gctPOINTER Logical
+    );
+
+gceSTATUS
+gctaHARDWARE_IsFeatureAvailable(
+    IN gcTA_HARDWARE Hardware,
+    IN gceFEATURE Feature
+    );
+
+gceSTATUS
+gctaHARDWARE_PrepareFunctions(
+    IN gcTA_HARDWARE Hardware
+    );
+
+gceSTATUS
+gctaHARDWARE_DumpMMUException(
+    IN gcTA_HARDWARE Hardware
+    );
+
+gceSTATUS
+gctaHARDWARE_HandleMMUException(
+    IN gcTA_HARDWARE Hardware,
+    IN gctUINT32 MMUStatus,
+    IN gctPHYS_ADDR_T Physical,
+    IN gctUINT32 GPUAddress
+    );
+
+gceSTATUS
+gctaHARDWARE_ReadMMUException(
+    IN gcTA_HARDWARE Hardware,
+    OUT gctUINT32_PTR MMUStatus,
+    OUT gctUINT32_PTR MMUException
+    );
+
+gceSTATUS
+gctaMMU_Construct(
+    IN gcTA TA,
+    OUT gcTA_MMU *Mmu
+    );
+
+gceSTATUS
+gctaMMU_Destory(
+    IN gcTA_MMU Mmu
+    );
+
+gceSTATUS
+gctaMMU_SetPage(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 PageAddress,
+    IN gctUINT32 *PageEntry
+    );
+
+gceSTATUS
+gctaMMU_GetPageEntry(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 Address,
+    OUT gctUINT32_PTR MtlbEntry,
+    OUT gctUINT32_PTR *PageTable,
+    OUT gctBOOL * Secure
+    );
+
+void
+gctaMMU_DumpPagetableEntry(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 Address
+    );
+
+gceSTATUS
+gctaMMU_FreePages(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 Address,
+    IN gctUINT32 PageCount
+    );
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+

drivers/mxc/gpu-viv/hal/security_v1/gc_hal_ta_hardware.h

@@ -0,0 +1,139 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _GC_HAL_TA_HARDWARE_H_
+#define _GC_HAL_TA_HARDWARE_H_
+#include "gc_hal_types.h"
+#include "gc_hal_security_interface.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct _gcsMMU_TABLE_ARRAY_ENTRY
+{
+    gctUINT32                   low;
+    gctUINT32                   high;
+}
+gcsMMU_TABLE_ARRAY_ENTRY;
+
+typedef struct _gcsHARDWARE_PAGETABLE_ARRAY
+{
+    /* Number of entries in page table array. */
+    gctUINT                     num;
+
+    /* Size in bytes of array. */
+    gctSIZE_T                   size;
+
+    /* Physical address of array. */
+    gctPHYS_ADDR_T              address;
+
+    /* Memory descriptor. */
+    gctPOINTER                  physical;
+
+    /* Logical address of array. */
+    gctPOINTER                  logical;
+}
+gcsHARDWARE_PAGETABLE_ARRAY;
+
+typedef struct _gcsHARWARE_FUNCTION
+{
+    /* Entry of the function. */
+    gctUINT32                   address;
+
+    /* CPU address of the function. */
+    gctUINT8_PTR                logical;
+
+    /* Bytes of the function. */
+    gctUINT32                   bytes;
+
+    /* Hardware address of END in this function. */
+    gctUINT32                   endAddress;
+
+    /* Logical of END in this function. */
+    gctUINT8_PTR                endLogical;
+}
+gcsHARDWARE_FUNCTION;
+
+typedef struct _gcTA_HARDWARE
+{
+    gctaOS                      os;
+    gcTA                        ta;
+
+    gctUINT32                   chipModel;
+    gctUINT32                   chipRevision;
+    gctUINT32                   productID;
+    gctUINT32                   ecoID;
+    gctUINT32                   customerID;
+
+    gctPOINTER                  featureDatabase;
+
+    gcsHARDWARE_PAGETABLE_ARRAY pagetableArray;
+
+    /* Function used by gctaHARDWARE. */
+    gctPHYS_ADDR                functionPhysical;
+    gctPOINTER                  functionLogical;
+    gctUINT32                   functionAddress;
+    gctSIZE_T                   functionBytes;
+
+    gcsHARDWARE_FUNCTION        functions[1];
+}
+gcsTA_HARDWARE;
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+

drivers/mxc/gpu-viv/hal/security_v1/gc_hal_ta_mmu.c

@@ -0,0 +1,586 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_types.h"
+#include "gc_hal_base.h"
+#include "gc_hal_security_interface.h"
+#include "gc_hal_ta.h"
+#include "gc_hal.h"
+
+#define _GC_OBJ_ZONE 2
+/*******************************************************************************
+************************************ Define ************************************
+********************************************************************************/
+
+#define gcdMMU_MTLB_SHIFT           22
+#define gcdMMU_STLB_4K_SHIFT        12
+#define gcdMMU_STLB_64K_SHIFT       16
+
+#define gcdMMU_MTLB_BITS            (32 - gcdMMU_MTLB_SHIFT)
+#define gcdMMU_PAGE_4K_BITS         gcdMMU_STLB_4K_SHIFT
+#define gcdMMU_STLB_4K_BITS         (32 - gcdMMU_MTLB_BITS - gcdMMU_PAGE_4K_BITS)
+#define gcdMMU_PAGE_64K_BITS        gcdMMU_STLB_64K_SHIFT
+#define gcdMMU_STLB_64K_BITS        (32 - gcdMMU_MTLB_BITS - gcdMMU_PAGE_64K_BITS)
+
+#define gcdMMU_MTLB_ENTRY_NUM       (1 << gcdMMU_MTLB_BITS)
+#define gcdMMU_MTLB_SIZE            (gcdMMU_MTLB_ENTRY_NUM << 2)
+#define gcdMMU_STLB_4K_ENTRY_NUM    (1 << gcdMMU_STLB_4K_BITS)
+#define gcdMMU_STLB_4K_SIZE         (gcdMMU_STLB_4K_ENTRY_NUM << 2)
+#define gcdMMU_PAGE_4K_SIZE         (1 << gcdMMU_STLB_4K_SHIFT)
+#define gcdMMU_STLB_64K_ENTRY_NUM   (1 << gcdMMU_STLB_64K_BITS)
+#define gcdMMU_STLB_64K_SIZE        (gcdMMU_STLB_64K_ENTRY_NUM << 2)
+#define gcdMMU_PAGE_64K_SIZE        (1 << gcdMMU_STLB_64K_SHIFT)
+
+#define gcdMMU_MTLB_MASK            (~((1U << gcdMMU_MTLB_SHIFT)-1))
+#define gcdMMU_STLB_4K_MASK         ((~0U << gcdMMU_STLB_4K_SHIFT) ^ gcdMMU_MTLB_MASK)
+#define gcdMMU_PAGE_4K_MASK         (gcdMMU_PAGE_4K_SIZE - 1)
+#define gcdMMU_STLB_64K_MASK        ((~((1U << gcdMMU_STLB_64K_SHIFT)-1)) ^ gcdMMU_MTLB_MASK)
+#define gcdMMU_PAGE_64K_MASK        (gcdMMU_PAGE_64K_SIZE - 1)
+
+/* Page offset definitions. */
+#define gcdMMU_OFFSET_4K_BITS       (32 - gcdMMU_MTLB_BITS - gcdMMU_STLB_4K_BITS)
+#define gcdMMU_OFFSET_4K_MASK       ((1U << gcdMMU_OFFSET_4K_BITS) - 1)
+#define gcdMMU_OFFSET_16K_BITS      (32 - gcdMMU_MTLB_BITS - gcdMMU_STLB_16K_BITS)
+#define gcdMMU_OFFSET_16K_MASK      ((1U << gcdMMU_OFFSET_16K_BITS) - 1)
+
+#define gcdMMU_MTLB_PRESENT         0x00000001
+#define gcdMMU_MTLB_EXCEPTION       0x00000002
+#define gcdMMU_MTLB_4K_PAGE         0x00000000
+
+#define gcdMMU_STLB_PRESENT         0x00000001
+#define gcdMMU_STLB_EXCEPTION       0x00000002
+#define gcdMMU_STLB_SECURITY        (1 << 4)
+#define gcdMMU_STLB_4K_PAGE         0x00000000
+
+#define gcdUSE_MMU_EXCEPTION        1
+
+#define gcdMMU_SECURE_AREA_START    ((gcdMMU_MTLB_ENTRY_NUM - gcdMMU_SECURE_AREA_SIZE) << gcdMMU_MTLB_SHIFT)
+
+typedef enum _gceMMU_TYPE
+{
+    gcvMMU_USED     = (0 << 4),
+    gcvMMU_SINGLE   = (1 << 4),
+    gcvMMU_FREE     = (2 << 4),
+}
+gceMMU_TYPE;
+
+typedef struct _gcsMMU_STLB *gcsMMU_STLB_PTR;
+typedef struct _gcsMMU_STLB
+{
+    gctPHYS_ADDR    physical;
+    gctUINT32_PTR   logical;
+    gctSIZE_T       size;
+    gctPHYS_ADDR_T  physBase;
+    gctSIZE_T       pageCount;
+    gctUINT32       mtlbIndex;
+    gctUINT32       mtlbEntryNum;
+    gcsMMU_STLB_PTR next;
+} gcsMMU_STLB;
+
+
+#define gcmENTRY_TYPE(x) (x & 0xF0)
+/*
+* We need flat mapping ta command buffer.
+
+*/
+
+/*
+* Helper
+*/
+gctUINT32
+_MtlbOffset(
+    gctUINT32 Address
+    )
+{
+    return (Address & gcdMMU_MTLB_MASK) >> gcdMMU_MTLB_SHIFT;
+}
+
+gctUINT32
+_StlbOffset(
+    gctUINT32 Address
+    )
+{
+    return (Address & gcdMMU_STLB_4K_MASK) >> gcdMMU_STLB_4K_SHIFT;
+}
+
+static gctUINT32
+_SetPage(gctUINT32 PageAddress)
+{
+    return PageAddress
+           /* writable */
+           | (1 << 2)
+           /* Ignore exception */
+           | (0 << 1)
+           /* Present */
+           | (1 << 0);
+}
+
+static void
+_WritePageEntry(
+    IN gctUINT32_PTR PageEntry,
+    IN gctUINT32     EntryValue
+    )
+{
+    *PageEntry = EntryValue;
+
+    gctaOS_CacheClean((gctUINT8_PTR)PageEntry, gcmSIZEOF(gctUINT32));
+}
+
+static gceSTATUS
+_FillPageTable(
+    IN gctUINT32_PTR PageTable,
+    IN gctUINT32     PageCount,
+    IN gctUINT32     EntryValue
+)
+{
+    gctUINT i;
+
+    for (i = 0; i < PageCount; i++)
+    {
+        _WritePageEntry(PageTable + i, EntryValue);
+    }
+
+    return gcvSTATUS_OK;
+}
+
+
+static gceSTATUS
+_AllocateStlb(
+    IN gctaOS Os,
+    OUT gcsMMU_STLB_PTR *Stlb
+    )
+{
+    gceSTATUS status;
+    gcsMMU_STLB_PTR stlb;
+    gctPOINTER pointer = gcvNULL;
+
+    /* Allocate slave TLB record. */
+    gcmkONERROR(gctaOS_Allocate(gcmSIZEOF(gcsMMU_STLB), &pointer));
+    stlb = pointer;
+
+    stlb->size = gcdMMU_STLB_4K_SIZE;
+
+    /* Allocate slave TLB entries. */
+    gcmkONERROR(gctaOS_AllocateSecurityMemory(
+        Os,
+        &stlb->size,
+        (gctPOINTER *)&stlb->logical,
+        &stlb->physical
+        ));
+
+    gcmkONERROR(gctaOS_GetPhysicalAddress(Os, stlb->logical, &stlb->physBase));
+
+#if gcdUSE_MMU_EXCEPTION
+    _FillPageTable(stlb->logical, (gctUINT32)stlb->size / 4, gcdMMU_STLB_EXCEPTION);
+#else
+    gctaOS_ZeroMemory(stlb->logical, (gctUINT32)stlb->size);
+#endif
+
+    *Stlb = stlb;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if(pointer != gcvNULL)
+        gcmkVERIFY_OK(gctaOS_Free(pointer));
+    return status;
+}
+
+gceSTATUS
+gctaMMU_Construct(
+    IN gcTA TA,
+    OUT gcTA_MMU *Mmu
+    )
+{
+    gceSTATUS status;
+    gctSIZE_T bytes = 4096;
+
+    gcTA_MMU mmu = gcvNULL;
+
+    gcmkONERROR(gctaOS_Allocate(
+        gcmSIZEOF(gcsTA_MMU),
+        (gctPOINTER *)&mmu
+        ));
+
+    mmu->mtlbLogical              = gcvNULL;
+    mmu->stlbs                    = gcvNULL;
+    mmu->safePageLogical          = gcvNULL;
+    mmu->nonSecureSafePageLogical = gcvNULL;
+
+    mmu->os = TA->os;
+
+    /* MTLB bytes. */
+    mmu->mtlbBytes = gcdMMU_MTLB_SIZE;
+
+    /* Allocate MTLB. */
+    gcmkONERROR(gctaOS_AllocateSecurityMemory(
+        TA->os,
+        &mmu->mtlbBytes,
+        &mmu->mtlbLogical,
+        &mmu->mtlbPhysical
+        ));
+
+#if gcdUSE_MMU_EXCEPTION
+    _FillPageTable(mmu->mtlbLogical, (gctUINT32)mmu->mtlbBytes / 4, gcdMMU_STLB_EXCEPTION);
+#else
+    gctaOS_ZeroMemory(mmu->mtlbLogical, (gctUINT32)mmu->mtlbBytes);
+#endif
+
+    /* Allocate a array to store stlbs. */
+    gcmkONERROR(gctaOS_Allocate((gctUINT32)mmu->mtlbBytes, &mmu->stlbs));
+
+    gctaOS_ZeroMemory((gctUINT8_PTR)mmu->stlbs, (gctUINT32)mmu->mtlbBytes);
+
+    /* Allocate security safe page. */
+    gcmkONERROR(gctaOS_AllocateSecurityMemory(
+        TA->os,
+        &bytes,
+        &mmu->safePageLogical,
+        &mmu->safePagePhysical
+        ));
+
+    gctaOS_ZeroMemory((gctUINT8_PTR)mmu->safePageLogical, (gctUINT32)bytes);
+
+    /* Allocate non security safe page. */
+    gcmkONERROR(gctaOS_AllocateSecurityMemory(
+        TA->os,
+        &bytes,
+        &mmu->nonSecureSafePageLogical,
+        &mmu->nonSecureSafePagePhysical
+        ));
+
+    gctaOS_ZeroMemory((gctUINT8_PTR)mmu->nonSecureSafePageLogical, (gctUINT32)bytes);
+
+    /* gcmkONERROR(gctaOS_CreateMutex(TA->os, &mmu->mutex)); */
+
+    *Mmu = mmu;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mmu)
+    {
+        if (mmu->safePageLogical)
+        {
+            gcmkVERIFY_OK(gctaOS_FreeSecurityMemory(
+                TA->os,
+                4096,
+                mmu->safePageLogical,
+                mmu->safePagePhysical
+                ));
+        }
+
+        if (mmu->nonSecureSafePageLogical)
+        {
+            gcmkVERIFY_OK(gctaOS_FreeSecurityMemory(
+                TA->os,
+                4096,
+                mmu->nonSecureSafePageLogical,
+                mmu->nonSecureSafePagePhysical
+                ));
+        }
+
+        if (mmu->mtlbLogical)
+        {
+            gcmkVERIFY_OK(gctaOS_FreeSecurityMemory(
+                TA->os,
+                4096,
+                mmu->mtlbLogical,
+                mmu->mtlbPhysical
+                ));
+        }
+
+        if (mmu->stlbs)
+        {
+            gcmkVERIFY_OK(gctaOS_Free((gctPOINTER)mmu->stlbs));
+        }
+
+        gcmkVERIFY_OK(gctaOS_Free((gctPOINTER)mmu));
+    }
+    return status;
+}
+
+gceSTATUS
+gctaMMU_Destory(
+    IN gcTA_MMU Mmu
+    )
+{
+    gctaOS os = Mmu->os;
+
+    if (Mmu->safePageLogical)
+    {
+        gcmkVERIFY_OK(gctaOS_FreeSecurityMemory(
+            os,
+            4096,
+            Mmu->safePageLogical,
+            Mmu->safePagePhysical
+            ));
+    }
+
+    if (Mmu->nonSecureSafePageLogical)
+    {
+        gcmkVERIFY_OK(gctaOS_FreeSecurityMemory(
+            os,
+            4096,
+            Mmu->nonSecureSafePageLogical,
+            Mmu->nonSecureSafePagePhysical
+            ));
+    }
+
+    if (Mmu->mtlbLogical)
+    {
+        gcmkVERIFY_OK(gctaOS_FreeSecurityMemory(
+            os,
+            4096,
+            Mmu->mtlbLogical,
+            Mmu->mtlbPhysical
+            ));
+    }
+
+    if (Mmu->stlbs)
+    {
+        gcmkVERIFY_OK(gctaOS_Free((gctPOINTER)Mmu->stlbs));
+    }
+
+    gcmkVERIFY_OK(gctaOS_Free(Mmu));
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gctaMMU_GetPageEntry(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 Address,
+    OUT gctUINT32_PTR MtlbEntry,
+    OUT gctUINT32_PTR *PageTable,
+    OUT gctBOOL * Secure
+    )
+{
+    gceSTATUS status;
+    struct _gcsMMU_STLB *stlb;
+    struct _gcsMMU_STLB **stlbs = (struct _gcsMMU_STLB **)Mmu->stlbs;
+    gctUINT32 offset = _MtlbOffset(Address);
+    gctUINT32 mtlbEntry;
+    gctBOOL secure = Address > gcdMMU_SECURE_AREA_START;
+
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT((Address & 0xFFF) == 0);
+
+    stlb = stlbs[offset];
+
+    if (stlb == gcvNULL)
+    {
+        gcmkONERROR(_AllocateStlb(Mmu->os, &stlb));
+
+        mtlbEntry = (gctUINT32)(stlb->physBase & 0xFFFFFFFF)
+                  | gcdMMU_MTLB_4K_PAGE
+                  | gcdMMU_MTLB_PRESENT
+                  ;
+
+        if (secure)
+        {
+            /* Secure MTLB. */
+            mtlbEntry |= (1 << 4);
+        }
+
+        /* Insert Slave TLB address to Master TLB entry.*/
+        _WritePageEntry((gctUINT32_PTR)Mmu->mtlbLogical + offset, mtlbEntry);
+
+        /* Record stlb. */
+        stlbs[offset] = stlb;
+
+        if (MtlbEntry)
+        {
+            /* Return entry value of new mtlb entry. */
+            *MtlbEntry = mtlbEntry;
+        }
+    }
+
+    *PageTable = &stlb->logical[_StlbOffset(Address)];
+
+    if (Secure)
+    {
+        *Secure = secure;
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gctaMMU_SetPage(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 PageAddress,
+    IN gctUINT32 *PageEntry
+    )
+{
+    /* gctBOOL secure; */
+
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(PageEntry != gcvNULL);
+    gcmkVERIFY_ARGUMENT(!(PageAddress & 0xFFF));
+
+    _WritePageEntry(PageEntry, _SetPage(PageAddress));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gctaMMU_FreePages(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 Address,
+    IN gctUINT32 PageCount
+    )
+{
+    gceSTATUS status;
+    gctUINT32 i;
+    gctUINT32_PTR entry;
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Fill in page table. */
+    for (i = 0; i < PageCount; i++)
+    {
+        gcmkONERROR(gctaMMU_GetPageEntry(Mmu, Address, gcvNULL, &entry, gcvNULL));
+
+#if gcdUSE_MMU_EXCEPTION
+        *entry = gcdMMU_STLB_EXCEPTION;
+#else
+        *entry = 0;
+#endif
+
+        Address += 4096;
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gctaMMU_Enable(
+    IN gcTA_MMU Mmu,
+    IN gcTA TA
+    )
+{
+    gceSTATUS status;
+    gctPHYS_ADDR_T address;
+    gctPHYS_ADDR_T safeAddress;
+
+    gcmkONERROR(gctaOS_GetPhysicalAddress(Mmu->os, Mmu->mtlbLogical, &address));
+
+    gctaOS_GetPhysicalAddress(Mmu->os, Mmu->safePageLogical, &safeAddress);
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+void
+gctaMMU_DumpPagetableEntry(
+    IN gcTA_MMU Mmu,
+    IN gctUINT32 Address
+    )
+{
+    gctUINT32 entry;
+    gctUINT32 mtlb = _MtlbOffset(Address);
+    gctUINT32_PTR mtlbLogical = Mmu->mtlbLogical;
+    gctUINT32_PTR stlbLogical;
+    gcsMMU_STLB_PTR stlb;
+    struct _gcsMMU_STLB **stlbs = (struct _gcsMMU_STLB **)Mmu->stlbs;
+
+    gctUINT32 stlbOffset   = (Address & gcdMMU_STLB_4K_MASK) >> gcdMMU_STLB_4K_SHIFT;
+    gctUINT32 offsetInPage = Address & gcdMMU_OFFSET_4K_MASK;
+
+    stlb = stlbs[mtlb];
+
+    gcmkPRINT("    MTLB entry = %d\n", mtlb);
+
+    gcmkPRINT("    STLB entry = %d\n", stlbOffset);
+
+    gcmkPRINT("    Offset = 0x%08X (%d)\n", offsetInPage, offsetInPage);
+
+
+    if (stlb == gcvNULL)
+    {
+        /* Dmp mtlb entry. */
+        entry = mtlbLogical[mtlb];
+
+        gcmkPRINT("   mtlb entry [%d] = %x", mtlb, entry);
+    }
+    else
+    {
+        stlbLogical = stlb->logical;
+
+        gcmkPRINT("    stlb entry = 0x%08X", stlbLogical[stlbOffset]);
+    }
+}
+
+

drivers/mxc/gpu-viv/hal/security_v1/os/emulator/gc_hal_ta_emulator.c

@@ -0,0 +1,324 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 - 2018 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014 - 2018 Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_base.h"
+#include "gc_hal.h"
+#include "gc_hal_ta.h"
+#include "gc_hal_kernel_mutex.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_OS
+
+gcTA globalTA[16] = { gcvNULL, gcvNULL, gcvNULL, gcvNULL,gcvNULL, gcvNULL, gcvNULL, gcvNULL };
+gctaOS globalTAos;
+
+struct _gctaOS {
+    void *os;
+
+    gctPOINTER dispatchMutex;
+};
+
+gceSTATUS HALDECL
+TAEmulator(
+    gceCORE Core,
+    void * Interface
+    )
+{
+    gckOS_AcquireMutex(globalTAos->os, globalTAos->dispatchMutex, gcvINFINITE);
+
+    gcTA_Dispatch(globalTA[Core], Interface);
+
+    gckOS_ReleaseMutex(globalTAos->os, globalTAos->dispatchMutex);
+    return gcvSTATUS_OK;
+}
+
+
+gceSTATUS
+gctaOS_ConstructOS(
+    IN gckOS Os,
+    OUT gctaOS *TAos
+    )
+{
+    gctaOS os;
+    gctPOINTER pointer = gcvNULL;
+    gceSTATUS status;
+
+    gcmkONERROR(gckOS_AllocateMemory(Os, gcmSIZEOF(struct _gctaOS), &pointer));
+
+    os = (gctaOS)pointer;
+    os->os = Os;
+
+    gcmkONERROR(gckOS_CreateMutex(Os, &os->dispatchMutex));
+
+    *TAos = globalTAos = os;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (pointer != gcvNULL)
+    {
+        gcmkVERIFY_OK(gckOS_FreeMemory(Os, pointer));
+    }
+    return status;
+}
+
+gceSTATUS
+gctaOS_DestroyOS(
+    IN gctaOS Os
+    )
+{
+    gckOS os = Os->os;
+
+    gcmkVERIFY_OK(gckOS_DeleteMutex(os, Os->dispatchMutex));
+    gcmkVERIFY_OK(gckOS_FreeMemory(os, Os));
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gctaOS_AllocateSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T  *Bytes,
+    OUT gctPOINTER *Logical,
+    OUT gctPOINTER *Physical
+    )
+{
+    gceSTATUS status;
+
+    gcmkONERROR(gckOS_AllocateNonPagedMemory(Os->os, gcvFALSE, gcvALLOC_FLAG_CONTIGUOUS, Bytes, (gctPHYS_ADDR *)Physical, Logical));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gceSTATUS
+gctaOS_FreeSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T  Bytes,
+    IN gctPOINTER Logical,
+    OUT gctPOINTER Physical
+    )
+{
+    gckOS_FreeNonPagedMemory(Os->os, Bytes, (gctPHYS_ADDR)Physical, Logical);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gctaOS_AllocateNonSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T  *Bytes,
+    OUT gctPOINTER *Logical,
+    OUT gctPOINTER *Physical
+    )
+{
+    gceSTATUS status;
+
+    gcmkONERROR(gckOS_AllocateNonPagedMemory(Os->os, gcvFALSE, gcvALLOC_FLAG_CONTIGUOUS, Bytes, (gctPHYS_ADDR *)Physical, Logical));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gceSTATUS
+gctaOS_FreeNonSecurityMemory(
+    IN gctaOS Os,
+    IN gctSIZE_T  Bytes,
+    IN gctPOINTER Logical,
+    OUT gctPOINTER Physical
+    )
+{
+    gckOS_FreeNonPagedMemory(Os->os, Bytes, (gctPHYS_ADDR)Physical, Logical);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gctaOS_Allocate(
+    IN gctUINT32 Bytes,
+    OUT gctPOINTER *Pointer
+    )
+{
+    return gckOS_AllocateMemory(globalTAos->os, Bytes, Pointer);
+}
+
+gceSTATUS
+gctaOS_Free(
+    IN gctPOINTER Pointer
+    )
+{
+    return gckOS_FreeMemory(globalTAos->os, Pointer);
+}
+
+gceSTATUS
+gctaOS_GetPhysicalAddress(
+    IN gctaOS Os,
+    IN gctPOINTER Logical,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    gctPHYS_ADDR_T physical;
+    gceSTATUS status;
+
+    gcmkONERROR(gckOS_GetPhysicalAddress(Os->os, Logical, &physical));
+
+    gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(Os->os, physical, &physical));
+
+    *Physical = physical;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gceSTATUS gctaOS_WriteRegister(
+    IN gctaOS Os, IN gceCORE Core,
+    IN gctUINT32 Address,
+    IN gctUINT32 Data
+    )
+{
+    return gckOS_WriteRegisterEx(Os->os, Core, Address, Data);
+}
+
+gceSTATUS gctaOS_ReadRegister(
+    IN gctaOS Os, IN gceCORE Core,
+    IN gctUINT32 Address,
+    IN gctUINT32 *Data
+    )
+{
+    return gckOS_ReadRegisterEx(Os->os, Core, Address, Data);
+}
+
+gceSTATUS
+gctaOS_MemCopy(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT8_PTR Src,
+    IN gctUINT32 Bytes
+    )
+{
+    gckOS_MemCopy(Dest, Src, Bytes);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gctaOS_ZeroMemory(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    )
+{
+    gckOS_ZeroMemory(Dest, Bytes);
+    return gcvSTATUS_OK;
+}
+
+void
+gctaOS_CacheFlush(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    )
+{
+
+}
+
+void
+gctaOS_CacheClean(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    )
+{
+
+}
+
+void
+gctaOS_CacheInvalidate(
+    IN gctUINT8_PTR Dest,
+    IN gctUINT32 Bytes
+    )
+{
+
+}
+
+gceSTATUS
+gctaOS_IsPhysicalSecure(
+    IN gctaOS Os,
+    IN gctUINT32 Physical,
+    OUT gctBOOL *Secure
+    )
+{
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+gceSTATUS
+gctaOS_Delay(
+    IN gctaOS Os,
+    IN gctUINT32 Delay
+    )
+{
+    return gckOS_Delay(Os->os, Delay);
+}
+
+gceSTATUS
+gctaOS_SetGPUPower(
+    IN gctaOS Os,
+    IN gctUINT32 Core,
+    IN gctBOOL Clock,
+    IN gctBOOL Power
+    )
+{
+    return gckOS_SetGPUPower(Os->os, Core, Power, Clock);
+}
+
+