Function report |
Source Code:include\linux\iommu-helper.h |
Create Date:2022-07-28 07:11:22 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:iommu_num_pages
Proto:static inline unsigned long iommu_num_pages(unsigned long addr, unsigned long len, unsigned long io_page_size)
Type:unsigned long
Parameter:
| Type | Parameter | Name |
|---|---|---|
| unsigned long | addr | |
| unsigned long | len | |
| unsigned long | io_page_size |
| 37 | size = (addr & io_page_size - 1 ) + len |
| 39 | Return DIV_ROUND_UP(size, io_page_size) |
| Name | Describe |
|---|---|
| dma_map_area | Map a single continuous physical area into the IOMMU.* Caller needs to check if the iommu is needed and flush. |
| gart_unmap_page | Free a DMA mapping. |
| __dma_map_cont | Map multiple scatterlist entries continuous into the first. |
| gart_map_sg | DMA map all entries in a scatterlist.* Merge chunks that have page aligned sizes into a continuous mapping. |
| Source code conversion tool public plug-in interface | X |
|---|---|
| Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |