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dma-mapping: improve selection of dma_declare_coherent availability 

This API is primarily used through DT entries, but two architectures
and two drivers call it directly.  So instead of selecting the config
symbol for random architectures pull it in implicitly for the actual
users.  Also rename the Kconfig option to describe the feature better.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christoph Hellwig 2019-02-03 20:12:02 +01:00
parent be4311a262
commit ff4c25f26a
15 changed files with 13 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arc/Kconfig
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@ -31,7 +31,6 @@ config ARC
select HAVE_ARCH_TRACEHOOK
select HAVE_DEBUG_STACKOVERFLOW
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IOREMAP_PROT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZMA

2
arch/arm/Kconfig
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@ -32,6 +32,7 @@ config ARM
select CLONE_BACKWARDS
select CPU_PM if SUSPEND || CPU_IDLE
select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
select DMA_DECLARE_COHERENT
select DMA_REMAP if MMU
select EDAC_SUPPORT
select EDAC_ATOMIC_SCRUB
@ -74,7 +75,6 @@ config ARM
select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL
select HAVE_FUNCTION_TRACER if !XIP_KERNEL
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_DMA_COHERENT
select HAVE_HW_BREAKPOINT if PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)
select HAVE_IDE if PCI || ISA || PCMCIA
select HAVE_IRQ_TIME_ACCOUNTING

1
arch/arm64/Kconfig
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@ -139,7 +139,6 @@ config ARM64
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_DMA_COHERENT
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_MEMBLOCK_NODE_MAP if NUMA

1
arch/csky/Kconfig
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@ -30,7 +30,6 @@ config CSKY
select HAVE_ARCH_TRACEHOOK
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZO
select HAVE_KERNEL_LZMA

1
arch/mips/Kconfig
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@ -56,7 +56,6 @@ config MIPS
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IDE
select HAVE_IOREMAP_PROT
select HAVE_IRQ_EXIT_ON_IRQ_STACK

1
arch/riscv/Kconfig
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@ -32,7 +32,6 @@ config RISCV
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_DMA_CONTIGUOUS
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_GENERIC_DMA_COHERENT
select HAVE_PERF_EVENTS
select HAVE_SYSCALL_TRACEPOINTS
select IRQ_DOMAIN

2
arch/sh/Kconfig
View File

@ -7,11 +7,11 @@ config SUPERH
select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select HAVE_PATA_PLATFORM
select CLKDEV_LOOKUP
select DMA_DECLARE_COHERENT
select HAVE_IDE if HAS_IOPORT_MAP
select HAVE_MEMBLOCK_NODE_MAP
select ARCH_DISCARD_MEMBLOCK
select HAVE_OPROFILE
select HAVE_GENERIC_DMA_COHERENT
select HAVE_ARCH_TRACEHOOK
select HAVE_PERF_EVENTS
select HAVE_DEBUG_BUGVERBOSE

1
arch/unicore32/Kconfig
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@ -4,7 +4,6 @@ config UNICORE32
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2
select GENERIC_ATOMIC64

1
arch/x86/Kconfig
View File

@ -15,7 +15,6 @@ config X86_32
select CLKSRC_I8253
select CLONE_BACKWARDS
select HAVE_AOUT
select HAVE_GENERIC_DMA_COHERENT
select MODULES_USE_ELF_REL
select OLD_SIGACTION

2
drivers/mfd/Kconfig
View File

@ -1067,6 +1067,7 @@ config MFD_SI476X_CORE
config MFD_SM501
tristate "Silicon Motion SM501"
depends on HAS_DMA
select DMA_DECLARE_COHERENT
---help---
This is the core driver for the Silicon Motion SM501 multimedia
companion chip. This device is a multifunction device which may
@ -1675,6 +1676,7 @@ config MFD_TC6393XB
select GPIOLIB
select MFD_CORE
select MFD_TMIO
select DMA_DECLARE_COHERENT
help
Support for Toshiba Mobile IO Controller TC6393XB

3
drivers/of/Kconfig
View File

@ -43,6 +43,7 @@ config OF_FLATTREE
config OF_EARLY_FLATTREE
bool
select DMA_DECLARE_COHERENT if HAS_DMA
select OF_FLATTREE
config OF_PROMTREE
@ -83,7 +84,7 @@ config OF_MDIO
config OF_RESERVED_MEM
bool
depends on OF_EARLY_FLATTREE
default y if HAVE_GENERIC_DMA_COHERENT || DMA_CMA
default y if DMA_DECLARE_COHERENT || DMA_CMA
config OF_RESOLVE
bool

2
include/linux/device.h
View File

@ -1017,7 +1017,7 @@ struct device {
struct list_head dma_pools; /* dma pools (if dma'ble) */
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
#ifdef CONFIG_DMA_DECLARE_COHERENT
struct dma_coherent_mem *dma_mem; /* internal for coherent mem
override */
#endif

8
include/linux/dma-mapping.h
View File

@ -153,7 +153,7 @@ static inline int is_device_dma_capable(struct device *dev)
return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
}
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
#ifdef CONFIG_DMA_DECLARE_COHERENT
/*
* These three functions are only for dma allocator.
* Don't use them in device drivers.
@ -192,7 +192,7 @@ static inline int dma_mmap_from_global_coherent(struct vm_area_struct *vma,
{
return 0;
}
#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
#endif /* CONFIG_DMA_DECLARE_COHERENT */
static inline bool dma_is_direct(const struct dma_map_ops *ops)
{
@ -739,7 +739,7 @@ static inline int dma_get_cache_alignment(void)
/* flags for the coherent memory api */
#define DMA_MEMORY_EXCLUSIVE 0x01
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
#ifdef CONFIG_DMA_DECLARE_COHERENT
int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size, int flags);
void dma_release_declared_memory(struct device *dev);
@ -764,7 +764,7 @@ dma_mark_declared_memory_occupied(struct device *dev,
{
return ERR_PTR(-EBUSY);
}
#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
#endif /* CONFIG_DMA_DECLARE_COHERENT */
static inline void *dmam_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)

2
kernel/dma/Kconfig
View File

@ -16,7 +16,7 @@ config ARCH_DMA_ADDR_T_64BIT
config ARCH_HAS_DMA_COHERENCE_H
bool
config HAVE_GENERIC_DMA_COHERENT
config DMA_DECLARE_COHERENT
bool
config ARCH_HAS_SETUP_DMA_OPS

2
kernel/dma/Makefile
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@ -2,7 +2,7 @@
obj-$(CONFIG_HAS_DMA) += mapping.o direct.o dummy.o
obj-$(CONFIG_DMA_CMA) += contiguous.o
obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += coherent.o
obj-$(CONFIG_DMA_DECLARE_COHERENT) += coherent.o
obj-$(CONFIG_DMA_VIRT_OPS) += virt.o
obj-$(CONFIG_DMA_API_DEBUG) += debug.o
obj-$(CONFIG_SWIOTLB) += swiotlb.o