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🆕 引入APIC驱动，完成local apic的初始化

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This commit is contained in:
fslongjin
2022-03-04 13:40:22 +08:00
parent eb11be9270
commit 574f323284
10 changed files with 350 additions and 109 deletions
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156
kernel/exception/irq.c
View File

@ -1,11 +1,18 @@
#include "irq.h"
// 对进行
#if _INTR_8259A_
#include "../driver/interrupt/8259A/8259A.h"
#else
#include "../driver/interrupt/apic/apic.h"
#endif
#include "../common/asm.h"
#include"../common/printk.h"
#include "../common/printk.h"
#include "gate.h"
// 保存函数调用现场的寄存器
#define SAVE_ALL_REGS \
#define SAVE_ALL_REGS \
"cld; \n\t" \
"pushq %rax; \n\t" \
"pushq %rax; \n\t" \
@ -32,7 +39,6 @@
"movq %rdx, %ds; \n\t" \
"movq %rdx, %es; \n\t"
// 定义IRQ处理函数的名字格式：IRQ+中断号+interrupt
#define IRQ_NAME2(name1) name1##interrupt(void)
#define IRQ_NAME(number) IRQ_NAME2(IRQ##number)
@ -42,107 +48,77 @@
#define Build_IRQ(number) \
void IRQ_NAME(number); \
__asm__ (SYMBOL_NAME_STR(IRQ)#number"interrupt: \n\t" \
"pushq $0x00 \n\t" \
SAVE_ALL_REGS \
__asm__(SYMBOL_NAME_STR(IRQ) #number "interrupt: \n\t" \
"pushq $0x00 \n\t" SAVE_ALL_REGS \
"movq %rsp, %rdi\n\t" \
"leaq ret_from_intr(%rip), %rax\n\t" \
"pushq %rax \n\t" \
"movq $"#number", %rsi \n\t" \
"movq $" #number ", %rsi \n\t" \
"jmp do_IRQ\n\t");
// 构造中断入口
Build_IRQ(0x20)
Build_IRQ(0x21)
Build_IRQ(0x22)
Build_IRQ(0x23)
Build_IRQ(0x24)
Build_IRQ(0x25)
Build_IRQ(0x26)
Build_IRQ(0x27)
Build_IRQ(0x28)
Build_IRQ(0x29)
Build_IRQ(0x2a)
Build_IRQ(0x2b)
Build_IRQ(0x2c)
Build_IRQ(0x2d)
Build_IRQ(0x2e)
Build_IRQ(0x2f)
Build_IRQ(0x30)
Build_IRQ(0x31)
Build_IRQ(0x32)
Build_IRQ(0x33)
Build_IRQ(0x34)
Build_IRQ(0x35)
Build_IRQ(0x36)
Build_IRQ(0x37)
Build_IRQ(0x20);
Build_IRQ(0x21);
Build_IRQ(0x22);
Build_IRQ(0x23);
Build_IRQ(0x24);
Build_IRQ(0x25);
Build_IRQ(0x26);
Build_IRQ(0x27);
Build_IRQ(0x28);
Build_IRQ(0x29);
Build_IRQ(0x2a);
Build_IRQ(0x2b);
Build_IRQ(0x2c);
Build_IRQ(0x2d);
Build_IRQ(0x2e);
Build_IRQ(0x2f);
Build_IRQ(0x30);
Build_IRQ(0x31);
Build_IRQ(0x32);
Build_IRQ(0x33);
Build_IRQ(0x34);
Build_IRQ(0x35);
Build_IRQ(0x36);
Build_IRQ(0x37);
// 初始化中断数组
void (*interrupt_table[24])(void)=
{
IRQ0x20interrupt,
IRQ0x21interrupt,
IRQ0x22interrupt,
IRQ0x23interrupt,
IRQ0x24interrupt,
IRQ0x25interrupt,
IRQ0x26interrupt,
IRQ0x27interrupt,
IRQ0x28interrupt,
IRQ0x29interrupt,
IRQ0x2ainterrupt,
IRQ0x2binterrupt,
IRQ0x2cinterrupt,
IRQ0x2dinterrupt,
IRQ0x2einterrupt,
IRQ0x2finterrupt,
IRQ0x30interrupt,
IRQ0x31interrupt,
IRQ0x32interrupt,
IRQ0x33interrupt,
IRQ0x34interrupt,
IRQ0x35interrupt,
IRQ0x36interrupt,
IRQ0x37interrupt,
void (*interrupt_table[24])(void) =
{
IRQ0x20interrupt,
IRQ0x21interrupt,
IRQ0x22interrupt,
IRQ0x23interrupt,
IRQ0x24interrupt,
IRQ0x25interrupt,
IRQ0x26interrupt,
IRQ0x27interrupt,
IRQ0x28interrupt,
IRQ0x29interrupt,
IRQ0x2ainterrupt,
IRQ0x2binterrupt,
IRQ0x2cinterrupt,
IRQ0x2dinterrupt,
IRQ0x2einterrupt,
IRQ0x2finterrupt,
IRQ0x30interrupt,
IRQ0x31interrupt,
IRQ0x32interrupt,
IRQ0x33interrupt,
IRQ0x34interrupt,
IRQ0x35interrupt,
IRQ0x36interrupt,
IRQ0x37interrupt,
};
/**
* @brief 初始化中断模块
*/
void irq_init()
{
#if _INTR_8259A_
init_8259A();
#else
apic_init();
#endif
}
/**
* @brief 中断服务程序
*
* @param rsp 中断栈指针
* @param number 中断号
*/
void do_IRQ(struct pt_regs *regs, ul number)
{
unsigned char x;
switch (number)
{
case 0x20: // 时钟中断信号
break;
case 0x21: // 键盘中断
x = io_in8(0x60);
printk_color(ORANGE, BLACK, "Received key irq, key code:%#018lx\n", x);
break;
default:
break;
}
if(number!=0x20)
printk_color(ORANGE, BLACK, "Received irq:%#018x\n", number);
// 向主芯片发送中断结束信号
io_out8(PIC_master, PIC_EOI);
}

7
kernel/exception/irq.h
View File

@ -21,10 +21,3 @@
void irq_init();
/**
* @brief 中断服务程序
*
* @param rsp 中断栈指针
* @param number 中断号
*/
void do_IRQ(struct pt_regs* rsp, ul number);