函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\cs5535.h Create Date:2022-07-27 08:45:57
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：cs5535_pic_unreqz_select_high

函数原型：static inline int cs5535_pic_unreqz_select_high(unsigned int group, unsigned int irq)

返回类型：int

参数：

类型参数名称
unsigned intgroup
unsigned intirq
54  Access to machine-specific registers (available on 586 and better only)* Note: the rd* operations modify the parameters directly (without using* pointer indirection), this allows gcc to optimize better(MSR_PIC_ZSEL_HIGH, lo, hi)
55  lo与等于0xF左移group乘4位的值的反
56  lo或等于irq按位与0xF的值左移group乘4位
57  wrmsr(MSR_PIC_ZSEL_HIGH, lo, hi)
58  返回:0