Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\mtrr\mtrr.c Create Date:2022-07-28 08:05:10
Last Modify:2022-05-18 17:35:08 Copyright©Brick
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Name:mtrr_add - Add a memory type region*@base: Physical base address of region*@size: Physical size of region*@type: Type of MTRR desired*@increment: If this is true do usage counting on the region* Memory type region registers control the caching on newer

Proto:int mtrr_add(unsigned long base, unsigned long size, unsigned int type, bool increment)

Type:int

Parameter:

TypeParameterName
unsigned longbase
unsigned longsize
unsigned inttype
boolincrement
456  If Not mtrr_enabled() Then Return -ENODEV
458  If mtrr_check(base, size) Then Return -EINVAL
460  Return mtrr_add_page - Add a memory type region*@base: Physical base address of region in pages (in units of 4 kB!)*@size: Physical size of region in pages (4 kB)*@type: Type of MTRR desired*@increment: If this is true do usage counting on the region* Memory
Caller
NameDescribe
arch_phys_wc_addarch_phys_wc_add - add a WC MTRR and handle errors if PAT is unavailable*@base: Physical base address*@size: Size of region* If PAT is available, this does nothing
mtrr_ioctl