函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\tsc.c Create Date:2022-07-27 08:46:28
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Make an educated guess if the TSC is trustworthy and synchronized* over all CPUs.

函数原型:int unsynchronized_tsc(void)

返回类型:int

参数:

1189  如果非boot_cpu_has(Time Stamp Counter )或TSC can be unstable due to cpufreq or due to unsynced TSCs则返回:1
1197  如果boot_cpu_has(TSC ticks at a constant rate )则返回:0
1200  如果tsc_clocksource_reliable则返回:0
1206  如果CPU vendor 不等于X86_VENDOR_INTEL
1208  如果num_possible_cpus()大于1则返回:1
1212  返回:0
调用者
名称描述
tsc_init