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authorMarek Szyprowski <m.szyprowski@samsung.com>2012-06-14 15:03:04 +0400
committerMarek Szyprowski <m.szyprowski@samsung.com>2012-07-30 14:25:46 +0400
commit64ccc9c033c6089b2d426dad3c56477ab066c999 (patch)
treeffaec86ca326dfc83b78ce4005bf46c3ad98ceb9 /include/asm-generic/dma-coherent.h
parent9fa8af91f0679f2abbebe1382b937264f3a8b981 (diff)
downloadlinux-64ccc9c033c6089b2d426dad3c56477ab066c999.tar.xz
common: dma-mapping: add support for generic dma_mmap_* calls
Commit 9adc5374 ('common: dma-mapping: introduce mmap method') added a generic method for implementing mmap user call to dma_map_ops structure. This patch converts ARM and PowerPC architectures (the only providers of dma_mmap_coherent/dma_mmap_writecombine calls) to use this generic dma_map_ops based call and adds a generic cross architecture definition for dma_mmap_attrs, dma_mmap_coherent, dma_mmap_writecombine functions. The generic mmap virt_to_page-based fallback implementation is provided for architectures which don't provide their own implementation for mmap method. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'include/asm-generic/dma-coherent.h')
-rw-r--r--include/asm-generic/dma-coherent.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-generic/dma-coherent.h b/include/asm-generic/dma-coherent.h
index abfb2682de7f..2be8a2dbc868 100644
--- a/include/asm-generic/dma-coherent.h
+++ b/include/asm-generic/dma-coherent.h
@@ -29,6 +29,7 @@ dma_mark_declared_memory_occupied(struct device *dev,
#else
#define dma_alloc_from_coherent(dev, size, handle, ret) (0)
#define dma_release_from_coherent(dev, order, vaddr) (0)
+#define dma_mmap_from_coherent(dev, vma, vaddr, order, ret) (0)
#endif
#endif