函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\dma\mapping.c Create Date:2022-07-27 11:32:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：dma_set_coherent_mask

函数原型：int dma_set_coherent_mask(struct device *dev, u64 mask)

返回类型：int

参数：

类型参数名称
struct device *dev
u64mask
359  mask等于mask
361  如果非dma_supported(dev, mask)则返回:负EIO
364  Like dma_mask, but for alloc_coherent mappings as not all hardware supports 64 bit addresses for consistent allocations such descriptors. 等于mask
365  返回:0