gart_map

函数名称：Map a single area into the IOMMU

函数原型：static dma_addr_t gart_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, unsigned long attrs)

返回类型：dma_addr_t

参数：

类型	参数	名称
struct device *	dev
struct page *	page
unsigned long	offset
size_t	size
enum dma_data_direction	dir
unsigned long	attrs

234

paddr等于Change "struct page" to physical address.(page)加offset

236

如果非need_iommu(dev, paddr, size)则返回:paddr

239

bus等于Map a single continuous physical area into the IOMMU.* Caller needs to check if the iommu is needed and flush.

240

Use global flush state to avoid races with multiple flushers.

242

返回:bus

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告