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 11:33:41
Last Modify:2020-03-17 14:54:14 Copyright©Brick
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函数名称：dma_alloc_from_global_coherent

函数原型：void *dma_alloc_from_global_coherent(struct device *dev, ssize_t size, dma_addr_t *dma_handle)

返回类型：void

参数：

类型参数名称
struct device *dev
ssize_tsize
dma_addr_t *dma_handle
186  如果非dma_coherent_default_memory则返回:NULL
189  返回:__dma_alloc_from_coherent(dev, dma_coherent_default_memory, size, dma_handle)