diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2011-12-21 16:55:33 +0100 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2012-03-28 16:36:42 +0200 |
| commit | 9adc537452e1e341cabd39a02d4788d3c510b0e2 (patch) | |
| tree | 17911e3c2e58cf20759e001ce718c8514a6a4027 /include | |
| parent | common: dma-mapping: remove old alloc_coherent and free_coherent methods (diff) | |
| download | linux-9adc537452e1e341cabd39a02d4788d3c510b0e2.tar.xz linux-9adc537452e1e341cabd39a02d4788d3c510b0e2.zip | |
common: dma-mapping: introduce mmap method
Introduce new generic mmap method with attributes argument.
This method lets drivers to create a userspace mapping for a DMA buffer
in generic, architecture independent way.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/dma-mapping.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 2fc413a873ea..b903a20867f7 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -15,6 +15,9 @@ struct dma_map_ops { void (*free)(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs); + int (*mmap)(struct device *, struct vm_area_struct *, + void *, dma_addr_t, size_t, struct dma_attrs *attrs); + dma_addr_t (*map_page)(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, |