函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\dma\contiguous.c Create Date:2022-07-27 11:33:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:dma_free_contiguous() - release allocated pages*@dev: Pointer to device for which the pages were allocated

函数原型:void dma_free_contiguous(struct device *dev, struct page *page, size_t size)

返回类型:void

参数:

类型参数名称
struct device *dev
struct page *page
size_tsize
267  如果非cma_release(dev_get_cma_area(dev), page, align the pointer to the (next) page boundary (size) >> PAGE_SHIFT determines the page size )则__free_pages(page, get_order - Determine the allocation order of a memory size*@size: The size for which to get the order* Determine the allocation order of a particular sized block of memory)
调用者
名称描述
__dma_direct_alloc_pages
dma_direct_alloc_pages
dma_direct_free_pages