summaryrefslogtreecommitdiffstats
path: root/arch/xtensa
diff options
context:
space:
mode:
authorGeert Uytterhoeven <geert@linux-m68k.org>2013-01-27 10:33:28 +0100
committerMarek Szyprowski <m.szyprowski@samsung.com>2013-01-29 08:27:41 +0100
commitda57b936ea7b328d1009b37a0a0ad1f14148e104 (patch)
tree23c0069e6e413dc8ea6c3f87b1b9900facef4c63 /arch/xtensa
parentparisc: Provide dummy dma_mmap_coherent() and dma_get_sgtable() (diff)
downloadlinux-da57b936ea7b328d1009b37a0a0ad1f14148e104.tar.xz
linux-da57b936ea7b328d1009b37a0a0ad1f14148e104.zip
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.h15
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 */