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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2013-01-27 09:33:21 +0000 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2013-01-29 08:11:14 +0100 |
| commit | afbe21d8b3aedc9d9df0110eaad3d3a816db55ad (patch) | |
| tree | 719d37461bf90f4ece111eb1ef79c9a280d9dde2 /arch/blackfin | |
| parent | 2e727622ddd14e2cbbe4e756ad4fd1eca915b713 (diff) | |
| download | lwn-afbe21d8b3aedc9d9df0110eaad3d3a816db55ad.tar.gz lwn-afbe21d8b3aedc9d9df0110eaad3d3a816db55ad.zip | |
blackfin: Provide dma_mmap_coherent() and dma_get_sgtable()
blackfin/allmodconfig:
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit declaration of function ‘dma_mmap_coherent’
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit declaration of function ‘dma_get_sgtable’
For architectures using dma_map_ops, dma_mmap_coherent() and
dma_get_sgtable() are provided in <asm-generic/dma-mapping-common.h>.
Blackfin does not use dma_map_ops, hence it should implement them as inline
stubs using dma_common_mmap() and dma_common_get_sgtable().
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: uclinux-dist-devel@blackfin.uclinux.org
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/include/asm/dma-mapping.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h index bbf461076a0a..054d9ec57d9d 100644 --- a/arch/blackfin/include/asm/dma-mapping.h +++ b/arch/blackfin/include/asm/dma-mapping.h @@ -154,4 +154,14 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size, _dma_sync((dma_addr_t)vaddr, size, dir); } +/* drivers/base/dma-mapping.c */ +extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma, + void *cpu_addr, dma_addr_t dma_addr, size_t size); +extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t dma_addr, + size_t size); + +#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s) +#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s) + #endif /* _BLACKFIN_DMA_MAPPING_H */ |