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| author | Tony Lindgren <tony@atomide.com> | 2011-11-07 21:27:23 +0100 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2011-11-07 21:27:23 +0100 |
| commit | d30cc16c8e48368e0518f4975a78711e53e14a0f (patch) | |
| tree | 26b57f7ab5a963cc3d6c57dff6951bd930875583 /Documentation/DMA-API.txt | |
| parent | ARM: OMAP2: Fix H4 matrix keyboard warning (diff) | |
| parent | ARM: OMAP: Fix export.h or module.h includes (diff) | |
| download | linux-d30cc16c8e48368e0518f4975a78711e53e14a0f.tar.xz linux-d30cc16c8e48368e0518f4975a78711e53e14a0f.zip | |
Merge branch 'fixes-modulesplit' into fixes
Diffstat (limited to 'Documentation/DMA-API.txt')
| -rw-r--r-- | Documentation/DMA-API.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt index fe2326906610..66bd97a95f10 100644 --- a/Documentation/DMA-API.txt +++ b/Documentation/DMA-API.txt @@ -50,6 +50,13 @@ specify the GFP_ flags (see kmalloc) for the allocation (the implementation may choose to ignore flags that affect the location of the returned memory, like GFP_DMA). +void * +dma_zalloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) + +Wraps dma_alloc_coherent() and also zeroes the returned memory if the +allocation attempt succeeded. + void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_handle) |