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| author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 03:29:33 +0200 |
|---|---|---|
| committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 03:29:33 +0200 |
| commit | 15dfd0df63ce6847081d09b2bbd567cc0cc4eae1 (patch) | |
| tree | 3b73f24fcef970bfcace3cbb297cfa57f3994682 /Documentation/DMA-API.txt | |
| parent | 328aa7a45af61bc0060c80847daa67fef7b9c0d0 (diff) | |
| parent | 0149138c4142da287d23f9d5c6038f7fb5e30ac2 (diff) | |
| download | kernel_samsung_smdk4412-15dfd0df63ce6847081d09b2bbd567cc0cc4eae1.zip kernel_samsung_smdk4412-15dfd0df63ce6847081d09b2bbd567cc0cc4eae1.tar.gz kernel_samsung_smdk4412-15dfd0df63ce6847081d09b2bbd567cc0cc4eae1.tar.bz2 | |
initial merge with 3.2.72
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 fe23269..66bd97a 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) |