函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\umwait.c Create Date:2022-07-27 08:57:08
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：umwait_update_control

函数原型：static inline void umwait_update_control(unsigned int maxtime, bool c02_enable)

返回类型：void

参数：

类型参数名称
unsigned intmaxtime
boolc02_enable
121  ctrl等于maxtime按位与The time field is bit[31:2], but representing a 32bit value with* bit[1:0] zero.
123  如果非c02_enable则ctrl或等于MSR_IA32_UMWAIT_CONTROL_C02_DISABLE
126  WRITE_ONCE(Cache IA32_UMWAIT_CONTROL MSR. This is a systemwide control. By default,* umwait max time is 100000 in TSC-quanta and C0.2 is enabled, ctrl)
128  Call a function on all processors
调用者
名称描述
enable_c02_store
max_time_store