Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\fpu\internal.h Create Date:2022-07-28 07:29:30
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:These must be called with preempt disabled

Proto:static inline int copy_fpregs_to_fpstate(struct fpu *fpu)

Type:int

Parameter:

TypeParameterName
struct fpu *fpu
419  If Value is more likely to compile time(use_xsave()) Then
420  Save processor xstate to xsave area.
426  If xfeatures & XFEATURE_MASK_AVX512 Then @avx512_timestamp:* Records the timestamp of AVX512 use during last context switch. = jiffies
428  Return 1
431  If Value is more likely to compile time(use_fxsr()) Then
432  copy_fxregs_to_kernel(fpu)
433  Return 1
440  asm volatile
442  Return 0
Caller
NameDescribe
kernel_fpu_begin
fpu__saveSave the FPU state (mark it for reload if necessary):* This only ever gets called for the current task.
fpu__copy