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firmware: Move Trusted Foundations support 

Move the Trusted Foundations support out of arch/arm/firmware and into
drivers/firmware where most other firmware support implementations are
located.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2019-04-10 10:47:28 +02:00
parent c8e7755ec6
commit 4cb5d9eca1
13 changed files with 30 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/Kconfig
View File

@ -899,8 +899,6 @@ config PLAT_PXA
config PLAT_VERSATILE
bool
source "arch/arm/firmware/Kconfig"
source "arch/arm/mm/Kconfig"
config IWMMXT

1
arch/arm/Makefile
View File

@ -290,7 +290,6 @@ core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
core-y += arch/arm/probes/
core-y += arch/arm/net/
core-y += arch/arm/crypto/
core-y += arch/arm/firmware/
core-y += $(machdirs) $(platdirs)
drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/

29
arch/arm/firmware/Kconfig
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@ -1,29 +0,0 @@
config ARCH_SUPPORTS_FIRMWARE
bool
config ARCH_SUPPORTS_TRUSTED_FOUNDATIONS
bool
select ARCH_SUPPORTS_FIRMWARE
menu "Firmware options"
depends on ARCH_SUPPORTS_FIRMWARE
config TRUSTED_FOUNDATIONS
bool "Trusted Foundations secure monitor support"
depends on ARCH_SUPPORTS_TRUSTED_FOUNDATIONS
default y
help
Some devices (including most Tegra-based consumer devices on the
market) are booted with the Trusted Foundations secure monitor
active, requiring some core operations to be performed by the secure
monitor instead of the kernel.
This option allows the kernel to invoke the secure monitor whenever
required on devices using Trusted Foundations. See
arch/arm/include/asm/trusted_foundations.h or the
tlm,trusted-foundations device tree binding documentation for details
on how to use it.
Say n if you don't know what this is about.
endmenu

4
arch/arm/firmware/Makefile
View File

@ -1,4 +0,0 @@
obj-$(CONFIG_TRUSTED_FOUNDATIONS) += trusted_foundations.o
# tf_generic_smc() fails to build with -fsanitize-coverage=trace-pc
KCOV_INSTRUMENT := n

1
arch/arm/mach-tegra/Kconfig
View File

@ -3,7 +3,6 @@ menuconfig ARCH_TEGRA
bool "NVIDIA Tegra"
depends on ARCH_MULTI_V7
select ARCH_HAS_RESET_CONTROLLER
select ARCH_SUPPORTS_TRUSTED_FOUNDATIONS
select ARM_AMBA
select ARM_GIC
select CLKSRC_MMIO

3
arch/arm/mach-tegra/cpuidle-tegra114.c
View File

@ -21,10 +21,11 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/firmware/trusted_foundations.h>
#include <asm/cpuidle.h>
#include <asm/smp_plat.h>
#include <asm/suspend.h>
#include <asm/trusted_foundations.h>
#include <asm/psci.h>
#include "cpuidle.h"

3
arch/arm/mach-tegra/pm.c
View File

@ -27,6 +27,8 @@
#include <linux/spinlock.h>
#include <linux/suspend.h>
#include <linux/firmware/trusted_foundations.h>
#include <soc/tegra/flowctrl.h>
#include <soc/tegra/fuse.h>
#include <soc/tegra/pm.h>
@ -39,7 +41,6 @@
#include <asm/smp_plat.h>
#include <asm/suspend.h>
#include <asm/tlbflush.h>
#include <asm/trusted_foundations.h>
#include "iomap.h"
#include "pm.h"

3
arch/arm/mach-tegra/reset.c
View File

@ -19,12 +19,13 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/firmware/trusted_foundations.h>
#include <soc/tegra/fuse.h>
#include <asm/cacheflush.h>
#include <asm/firmware.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/trusted_foundations.h>
#include "iomap.h"
#include "irammap.h"

3
arch/arm/mach-tegra/tegra.c
View File

@ -35,6 +35,8 @@
#include <linux/sys_soc.h>
#include <linux/usb/tegra_usb_phy.h>
#include <linux/firmware/trusted_foundations.h>
#include <soc/tegra/fuse.h>
#include <soc/tegra/pmc.h>
@ -44,7 +46,6 @@
#include <asm/mach/time.h>
#include <asm/mach-types.h>
#include <asm/setup.h>
#include <asm/trusted_foundations.h>
#include "board.h"
#include "common.h"

16
drivers/firmware/Kconfig
View File

@ -267,6 +267,22 @@ config TI_SCI_PROTOCOL
This protocol library is used by client drivers to use the features
provided by the system controller.
config TRUSTED_FOUNDATIONS
bool "Trusted Foundations secure monitor support"
depends on ARM
help
Some devices (including most early Tegra-based consumer devices on
the market) are booted with the Trusted Foundations secure monitor
active, requiring some core operations to be performed by the secure
monitor instead of the kernel.
This option allows the kernel to invoke the secure monitor whenever
required on devices using Trusted Foundations. See the functions and
comments in linux/firmware/trusted_foundations.h or the device tree
bindings for "tlm,trusted-foundations" for details on how to use it.
Choose N if you don't know what this is about.
config HAVE_ARM_SMCCC
bool

1
drivers/firmware/Makefile
View File

@ -23,6 +23,7 @@ obj-$(CONFIG_QCOM_SCM_64) += qcom_scm-64.o
obj-$(CONFIG_QCOM_SCM_32) += qcom_scm-32.o
CFLAGS_qcom_scm-32.o :=$(call as-instr,.arch armv7-a\n.arch_extension sec,-DREQUIRES_SEC=1) -march=armv7-a
obj-$(CONFIG_TI_SCI_PROTOCOL) += ti_sci.o
obj-$(CONFIG_TRUSTED_FOUNDATIONS) += trusted_foundations.o
obj-$(CONFIG_ARM_SCMI_PROTOCOL) += arm_scmi/
obj-y += broadcom/

4
arch/arm/firmware/trusted_foundations.c → drivers/firmware/trusted_foundations.c
View File

@ -17,10 +17,12 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/firmware/trusted_foundations.h>
#include <asm/firmware.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/outercache.h>
#include <asm/trusted_foundations.h>
#define TF_CACHE_MAINT 0xfffff100

4
arch/arm/include/asm/trusted_foundations.h → include/linux/firmware/trusted_foundations.h
View File

@ -23,8 +23,8 @@
* PSCI standard.
*/
#ifndef __ASM_ARM_TRUSTED_FOUNDATIONS_H
#define __ASM_ARM_TRUSTED_FOUNDATIONS_H
#ifndef __FIRMWARE_TRUSTED_FOUNDATIONS_H
#define __FIRMWARE_TRUSTED_FOUNDATIONS_H
#include <linux/printk.h>
#include <linux/bug.h>