Linux绑定硬件IRQ到指定SOC的CPU核

1：我们可以通过如下命令cat /proc/interrupts来获取当前IRQ对应CPU核心的情况

2：执行 echo "2" > /proc/irq/8/smp_affinity

　　8：我们要绑定的中断号

 　  2：代表CPU1

 Binary          Hex

CPU0                  0000 0001        1

CPU1                  0000 0010        2

CPU2                  0000 0100        4

CPU3                  0000 1000        8

CPU4                  0001 0000       10

CPU5                  0010 0000       20

CPU6                  0100 0000       40

CPU7                  1000 0000       80

3：cat /proc/interrupts 确认是否绑定成功