Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\cyrix.c Create Date:2022-07-28 07:58:57
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:cyrix_identify

Proto:static void cyrix_identify(struct cpuinfo_x86 *c)

Type:void

Parameter:

TypeParameterName
struct cpuinfo_x86 *c
415  If CPU family == 4 && Perform the Cyrix 5/2 test. A Cyrix won't change* the flags, while other 486 chips will. Then
418  strcpy(x86_vendor_id, "CyrixInstead")
419  CPU vendor = X86_VENDOR_CYRIX
425  do_cyrix_devid( & dir0, & dir1)
427  dir0 >>= 4
431  If dir0 == 5 || dir0 == 3 Then
434  pr_info("Enabling CPUID on Cyrix processor.\n")
435  local_irq_save(flags)
436  ccr3 = NSC/Cyrix CPU indexed register access. Must be inlined instead of* macros to ensure correct access ordering* Access order is always 0x22 (=offset), 0x23 (=value)
438  setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10)
440  setCx86(CX86_CCR4, NSC/Cyrix CPU indexed register access. Must be inlined instead of* macros to ensure correct access ordering* Access order is always 0x22 (=offset), 0x23 (=value) | 0x80)
442  setCx86(CX86_CCR3, ccr3)
443  local_irq_restore(flags)