函数逻辑报告 |
Source Code:kernel\dma\virt.c |
Create Date:2022-07-27 11:33:54 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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函数名称:dma_virt_map_sg
函数原型:static int dma_virt_map_sg(struct device *dev, struct scatterlist *sgl, int nents, enum dma_data_direction dir, unsigned long attrs)
返回类型:int
参数:
类型 | 参数 | 名称 |
---|---|---|
struct device * | dev | |
struct scatterlist * | sgl | |
int | nents | |
enum dma_data_direction | dir | |
unsigned long | attrs |
46 | These macros should be used after a dma_map_sg call has been done* to get bus addresses of each of the SG entries and their lengths(sg)等于 返回SG虚拟地址入口 |
47 | sg_dma_len(sg)等于length |
50 | 返回:nents |
源代码转换工具 开放的插件接口 | X |
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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 |