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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-11-24 16:27:17 +0000 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-15 15:22:11 +0000 |
commit | 4ea0d7371e808628d11154b0d44140b70f05b998 (patch) | |
tree | 7673b2fc850475a587144a02c9f568a2831f0c2f /arch/arm/mm | |
parent | 18eabe2347ae7a11b3db768695913724166dfb0e (diff) | |
download | linux-3.10-4ea0d7371e808628d11154b0d44140b70f05b998.tar.gz linux-3.10-4ea0d7371e808628d11154b0d44140b70f05b998.tar.bz2 linux-3.10-4ea0d7371e808628d11154b0d44140b70f05b998.zip |
ARM: dma-mapping: push buffer ownership down into dma-mapping.c
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Santosh Shilimkar <santosh.shilimkar@ti.com>
Diffstat (limited to 'arch/arm/mm')
-rw-r--r-- | arch/arm/mm/dma-mapping.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index a316c945952..bbf87880b91 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -404,7 +404,7 @@ EXPORT_SYMBOL(dma_free_coherent); * platforms with CONFIG_DMABOUNCE. * Use the driver DMA support - see dma-mapping.h (dma_sync_*) */ -void dma_cache_maint(const void *start, size_t size, int direction) +static void dma_cache_maint(const void *start, size_t size, int direction) { void (*inner_op)(const void *, const void *); void (*outer_op)(unsigned long, unsigned long); @@ -431,7 +431,20 @@ void dma_cache_maint(const void *start, size_t size, int direction) inner_op(start, start + size); outer_op(__pa(start), __pa(start) + size); } -EXPORT_SYMBOL(dma_cache_maint); + +void ___dma_single_cpu_to_dev(const void *kaddr, size_t size, + enum dma_data_direction dir) +{ + dma_cache_maint(kaddr, size, dir); +} +EXPORT_SYMBOL(___dma_single_cpu_to_dev); + +void ___dma_single_dev_to_cpu(const void *kaddr, size_t size, + enum dma_data_direction dir) +{ + /* nothing to do */ +} +EXPORT_SYMBOL(___dma_single_dev_to_cpu); static void dma_cache_maint_contiguous(struct page *page, unsigned long offset, size_t size, int direction) @@ -474,7 +487,7 @@ static void dma_cache_maint_contiguous(struct page *page, unsigned long offset, outer_op(paddr, paddr + size); } -void dma_cache_maint_page(struct page *page, unsigned long offset, +static void dma_cache_maint_page(struct page *page, unsigned long offset, size_t size, int dir) { /* @@ -499,7 +512,20 @@ void dma_cache_maint_page(struct page *page, unsigned long offset, left -= len; } while (left); } -EXPORT_SYMBOL(dma_cache_maint_page); + +void ___dma_page_cpu_to_dev(struct page *page, unsigned long off, + size_t size, enum dma_data_direction dir) +{ + dma_cache_maint_page(page, off, size, dir); +} +EXPORT_SYMBOL(___dma_page_cpu_to_dev); + +void ___dma_page_dev_to_cpu(struct page *page, unsigned long off, + size_t size, enum dma_data_direction dir) +{ + /* nothing to do */ +} +EXPORT_SYMBOL(___dma_page_dev_to_cpu); /** * dma_map_sg - map a set of SG buffers for streaming mode DMA |