dma_map_page

Name:dma_map_page_attrs

Proto:static inline dma_addr_t dma_map_page_attrs(struct device *dev, struct page *page, size_t offset, size_t size, enum dma_data_direction dir, unsigned long attrs)

Type:dma_addr_t

Parameter:

Type	Parameter	Name
struct device *	dev
struct page *	page
size_t	offset
size_t	size
enum dma_data_direction	dir
unsigned long	attrs

278

ops = get_dma_ops(dev)

281

BUG_ON(!valid_dma_direction(dir))

282

If dma_is_direct(ops) Then addr = dma_direct_map_page(dev, page, offset, size, dir, attrs)

284

Else addr = map_page(dev, page, offset, size, dir, attrs)

286

debug_dma_map_page(dev, page, offset, size, dir, addr)

288

Return addr

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Function report