函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\amd_gart_64.c Create Date:2022-07-27 09:51:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：free_iommu

函数原型：static void free_iommu(unsigned long offset, int size)

返回类型：void

参数：

类型参数名称
unsigned longoffset
intsize
130  spin_lock_irqsave( & Allocation bitmap for the remapping area: , flags)
131  bitmap_clear(Guarded by iommu_bitmap_lock: , offset, size)
132  如果offset大于等于protected by iommu_bitmap_lock 则protected by iommu_bitmap_lock 等于offset加size
134  spin_unlock_irqrestore( & Allocation bitmap for the remapping area: , flags)
调用者
名称描述
gart_unmap_pageFree a DMA mapping.