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| author |   Marek Szyprowski <m.szyprowski@samsung.com> | 2012-06-14 13:03:04 +0200 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2012-07-30 12:25:46 +0200 |
| commit | 64ccc9c033c6089b2d426dad3c56477ab066c999 (patch) | |
| tree | ffaec86ca326dfc83b78ce4005bf46c3ad98ceb9 /include/asm-generic/dma-coherent.h | |
| parent | ARM: dma-mapping: fix error path for memory allocation failure (diff) | |
| download | linux-dev-64ccc9c033c6089b2d426dad3c56477ab066c999.tar.xz linux-dev-64ccc9c033c6089b2d426dad3c56477ab066c999.zip | |
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.h | 1 |
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 |