Function report |
Source Code:arch\x86\kernel\cpu\mtrr\generic.c |
Create Date:2022-07-28 08:06:13 |
Last Modify:2022-05-18 17:45:43 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:generic_get_mtrr
Proto:static void generic_get_mtrr(unsigned int reg, unsigned long *base, unsigned long *size, mtrr_type *type)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
unsigned int | reg | |
unsigned long * | base | |
unsigned long * | size | |
mtrr_type * | type |
590 | get_cpu() |
594 | If (mask_lo & 0x800) == 0 Then |
605 | tmp = mask_hi << 32 - PAGE_SHIFT determines the page size | mask_lo >> PAGE_SHIFT determines the page size |
606 | mask = size_or_mask | tmp |
610 | If hi > 0 Then |
614 | pr_warn("mtrr: your BIOS has configured an incorrect mask, fixing it.\n") |
625 | base = base_hi << 32 - PAGE_SHIFT determines the page size | base_lo >> PAGE_SHIFT determines the page size |
628 | out_put_cpu : |
629 | put_cpu() |
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