函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\dma\coherent.c Create Date:2022-07-27 11:33:42
Last Modify:2020-03-17 14:54:14 Copyright©Brick
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函数名称:dma_release_from_dev_coherent() - free memory to device coherent memory pool*@dev: device from which the memory was allocated*@order: the order of pages allocated*@vaddr: virtual address of allocated pages* This checks whether the memory was allocated

函数原型:int dma_release_from_dev_coherent(struct device *dev, int order, void *vaddr)

返回类型:int

参数:

类型参数名称
struct device *dev
intorder
void *vaddr
223  mem等于dev_get_coherent_memory(dev)
225  返回:__dma_release_from_coherent(mem, order, vaddr)
调用者
名称描述
dma_free_attrs