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authorGeert Uytterhoeven <geert@linux-m68k.org>2013-01-27 09:33:21 +0000
committerMarek Szyprowski <m.szyprowski@samsung.com>2013-01-29 08:11:14 +0100
commitafbe21d8b3aedc9d9df0110eaad3d3a816db55ad (patch)
tree719d37461bf90f4ece111eb1ef79c9a280d9dde2 /arch/blackfin
parent2e727622ddd14e2cbbe4e756ad4fd1eca915b713 (diff)
downloadlinux-afbe21d8b3aedc9d9df0110eaad3d3a816db55ad.tar.gz
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.h10
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 bbf461076a0..054d9ec57d9 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 */