Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\dmapool.c Create Date:2022-07-28 15:24:16
Last Modify:2020-03-12 14:18:49 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:pool_find_page

Proto:static struct dma_page *pool_find_page(struct dma_pool *pool, dma_addr_t dma)

Type:struct dma_page

Parameter:

TypeParameterName
struct dma_pool *pool
dma_addr_tdma
393  If dma < dma Then Continue
395  If dma - dma < allocation Then Return page
398  Return NULL
Caller
NameDescribe
dma_pool_freedma_pool_free - put block back into dma pool*@pool: the dma pool holding the block*@vaddr: virtual address of block*@dma: dma address of block* Caller promises neither device nor driver will again touch this block* unless it is first re-allocated.