Function report |
Source Code:arch\x86\lib\delay.c |
Create Date:2022-07-28 07:24:39 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:__const_udelay
Proto:noinline void __const_udelay(unsigned long xloops)
Type:void
Parameter:
| Type | Parameter | Name |
|---|---|---|
| unsigned long | xloops |
| 167 | lpj = If Operations with implied preemption/interrupt protection. These* operations can be used without worrying about preemption or interrupt.(loops_per_jiffy) Else loops_per_jiffy |
| 170 | xloops *= 4 |
| 171 | asm("mull %%edx":"=d"(xloops), "=&a"(d0):"1"(xloops), "0"(lpj*(HZ/4))) |
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