Commit 9adc5374 authored by Marek Szyprowski's avatar Marek Szyprowski

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: default avatarMarek Szyprowski <>
Acked-by: default avatarKyungmin Park <>
Reviewed-by: default avatarArnd Bergmann <>
parent 645ae3bc
......@@ -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,
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