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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2013-01-27 13:33:28 +0400 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2013-01-29 11:27:41 +0400 |
| commit | da57b936ea7b328d1009b37a0a0ad1f14148e104 (patch) | |
| tree | 23c0069e6e413dc8ea6c3f87b1b9900facef4c63 /arch/xtensa | |
| parent | 59bb8407366b3c627e2c309e9f86d3c851e8362f (diff) | |
| download | linux-da57b936ea7b328d1009b37a0a0ad1f14148e104.tar.xz | |
xtensa: Provide dummy dma_mmap_coherent() and dma_get_sgtable()
xtensa/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>.
Xtensa does not use dma_map_ops, hence it should implement them itself.
For now, use dummy implementations that just return -EINVAL, until the API
has been finalized.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-xtensa@linux-xtensa.org
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/dma-mapping.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h index 4acb5feba1fb..172a02a6ad14 100644 --- a/arch/xtensa/include/asm/dma-mapping.h +++ b/arch/xtensa/include/asm/dma-mapping.h @@ -170,4 +170,19 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size, consistent_sync(vaddr, size, direction); } +/* Not supported for now */ +static inline int dma_mmap_coherent(struct device *dev, + struct vm_area_struct *vma, void *cpu_addr, + dma_addr_t dma_addr, size_t size) +{ + return -EINVAL; +} + +static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t dma_addr, + size_t size) +{ + return -EINVAL; +} + #endif /* _XTENSA_DMA_MAPPING_H */ |