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authorMarek Szyprowski <m.szyprowski@samsung.com>2011-12-21 19:55:33 +0400
committerMarek Szyprowski <m.szyprowski@samsung.com>2012-03-28 18:36:42 +0400
commit9adc537452e1e341cabd39a02d4788d3c510b0e2 (patch)
tree17911e3c2e58cf20759e001ce718c8514a6a4027 /include/linux/dma-mapping.h
parent645ae3bce3e62541f8dc2701dde2a2791d842b6c (diff)
downloadlinux-9adc537452e1e341cabd39a02d4788d3c510b0e2.tar.xz
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/linux/dma-mapping.h')
-rw-r--r--include/linux/dma-mapping.h3
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,