From: Geert Uytterhoeven Date: Sun, 27 Jan 2013 09:33:21 +0000 (+0000) Subject: blackfin: Provide dma_mmap_coherent() and dma_get_sgtable() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=afbe21d8b3aedc9d9df0110eaad3d3a816db55ad;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 . 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 Cc: Marek Szyprowski Cc: uclinux-dist-devel@blackfin.uclinux.org Acked-by: Scott Jiang Signed-off-by: Marek Szyprowski --- 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 */