DragonOS-Community/DragonOS
4
1
Fork 0
mirror of https://github.com/DragonOS-Community/DragonOS.git synced 2025-06-18 12:16:31 +00:00
Code Issues Releases Wiki Activity

🐛 暂时解决了由于时钟中断导致#DF的问题（用的华强北方法...以后再fix）

Browse Source
This commit is contained in:
fslongjin
2022-04-06 15:06:51 +08:00
parent 32b8a163bb
commit a62454587e
5 changed files with 174 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

115
kernel/driver/interrupt/apic/apic.c
View File

@ -29,7 +29,6 @@ void apic_io_apic_init()
kdebug("MADT->local intr controller addr=%#018lx", madt->Local_Interrupt_Controller_Address);
kdebug("MADT->length= %d bytes", madt->header.Length);
// 寻找io apic的ICS
void *ent = (void *)(madt_addr) + sizeof(struct acpi_Multiple_APIC_Description_Table_t);
struct apic_Interrupt_Controller_Structure_header_t *header = (struct apic_Interrupt_Controller_Structure_header_t *)ent;
@ -53,6 +52,7 @@ void apic_io_apic_init()
apic_ioapic_map.virtual_data_addr = (uint *)(APIC_IO_APIC_VIRT_BASE_ADDR + 0x10);
apic_ioapic_map.virtual_EOI_addr = (uint *)(APIC_IO_APIC_VIRT_BASE_ADDR + 0x40);
kdebug("(ul)apic_ioapic_map.virtual_index_addr=%#018lx", (ul)apic_ioapic_map.virtual_index_addr);
// 填写页表，完成地址映射
mm_map_phys_addr((ul)apic_ioapic_map.virtual_index_addr, apic_ioapic_map.addr_phys, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
@ -127,20 +127,74 @@ void apic_init_ap_core_local_apic()
kinfo("xAPIC & x2APIC enabled!");
// 设置SVR寄存器，开启local APIC、禁止EOI广播
__asm__ __volatile__("movq $0x80f, %%rcx \n\t"
"rdmsr \n\t"
"bts $8, %%rax \n\t"
"bts $12, %%rax \n\t"
"movq $0x80f, %%rcx \n\t"
"wrmsr \n\t"
"movq $0x80f , %%rcx \n\t"
"rdmsr \n\t"
: "=a"(eax), "=d"(edx)::"memory", "rcx");
// enable SVR[8]
__asm__ __volatile__("movq $0x80f, %%rcx \n\t"
"rdmsr \n\t"
"bts $8, %%rax \n\t"
// "bts $12, %%rax\n\t"
"wrmsr \n\t"
"movq $0x80f, %%rcx \n\t"
"rdmsr \n\t"
: "=a"(eax), "=d"(edx)
:
: "memory");
if (eax & 0x100)
kinfo("APIC Software Enabled.");
if (eax & 0x1000)
kinfo("EOI-Broadcast Suppression Enabled.");
printk_color(RED, YELLOW, "SVR[8] enabled\n");
if (edx & 0x1000)
printk_color(RED, YELLOW, "SVR[12] enabled\n");
// get local APIC ID
__asm__ __volatile__("movq $0x802, %%rcx \n\t"
"rdmsr \n\t"
: "=a"(eax), "=d"(edx)
:
: "memory");
printk_color(RED, YELLOW, "x2APIC ID:%#010x\n", eax);
// 由于尚未配置LVT对应的处理程序，因此先屏蔽所有的LVT
// mask all LVT
__asm__ __volatile__( //"movq $0x82f, %%rcx \n\t" //CMCI
//"wrmsr \n\t"
"movq $0x832, %%rcx \n\t" // Timer
"wrmsr \n\t"
"movq $0x833, %%rcx \n\t" // Thermal Monitor
"wrmsr \n\t"
"movq $0x834, %%rcx \n\t" // Performance Counter
"wrmsr \n\t"
"movq $0x835, %%rcx \n\t" // LINT0
"wrmsr \n\t"
"movq $0x836, %%rcx \n\t" // LINT1
"wrmsr \n\t"
"movq $0x837, %%rcx \n\t" // Error
"wrmsr \n\t"
:
: "a"(0x10000), "d"(0x00)
: "memory");
/*
io_mfence();
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_CMCI) = 0x1000000;
io_mfence();
kdebug("cmci = %#018lx", *(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_CMCI));
*/
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_TIMER) = 0x10000;
io_mfence();
/*
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_THERMAL) = 0x1000000;
io_mfence();
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_PERFORMANCE_MONITOR) = 0x1000000;
io_mfence();
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_LINT0) = 0x1000000;
io_mfence();
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_LINT1) = 0x1000000;
io_mfence();
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_ERROR) = 0x1000000;
io_mfence();
*/
kdebug("All LVT Masked");
}
/**
* @brief 初始化local apic
@ -219,7 +273,7 @@ void apic_local_apic_init()
"wrmsr \n\t"
"movq $0x80f , %%rcx \n\t"
"rdmsr \n\t"
: "=a"(eax), "=d"(edx)::"memory", "rcx");
: "=a"(eax), "=d"(edx)::"memory");
/*
//enable SVR[8]
@ -297,8 +351,10 @@ void apic_local_apic_init()
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_CMCI) = 0x1000000;
io_mfence();
kdebug("cmci = %#018lx", *(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_CMCI));
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_TIMER) = 0x1000000;
*/
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_TIMER) = 0x10000;
io_mfence();
/*
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_THERMAL) = 0x1000000;
io_mfence();
*(uint *)(APIC_LOCAL_APIC_VIRT_BASE_ADDR + LOCAL_APIC_OFFSET_Local_APIC_LVT_PERFORMANCE_MONITOR) = 0x1000000;
@ -333,15 +389,31 @@ void apic_local_apic_init()
*/
void apic_init()
{
// 初始化主芯片
io_out8(0x20, 0x11); // 初始化主芯片的icw1
io_out8(0x21, 0x20); // 设置主芯片的中断向量号为0x20(0x20-0x27)
io_out8(0x21, 0x04); // 设置int2端口级联从芯片
io_out8(0x21, 0x01); // 设置为AEOI模式、FNM、无缓冲
// 初始化从芯片
io_out8(0xa0, 0x11);
io_out8(0xa1, 0x28); // 设置从芯片的中断向量号为0x28(0x28-0x2f)
io_out8(0xa1, 0x02); // 设置从芯片连接到主芯片的int2
io_out8(0xa1, 0x01);
// 屏蔽类8259A芯片
io_mfence();
io_out8(0xa1, 0xff);
io_mfence();
io_out8(0x21, 0xff);
io_mfence();
kdebug("8259A Masked.");
// 初始化中断门， 中断使用第二个ist
for (int i = 32; i <= 55; ++i)
set_intr_gate(i, 2, interrupt_table[i - 32]);
// 屏蔽类8259A芯片
io_out8(0x21, 0xff);
io_out8(0xa1, 0xff);
kdebug("8259A Masked.");
// enable IMCR
io_out8(0x22, 0x70);
io_out8(0x23, 0x01);
@ -349,7 +421,10 @@ void apic_init()
apic_local_apic_init();
apic_io_apic_init();
kdebug("vvvvv");
sti();
kdebug("qqqqq");
}
/**
* @brief 中断服务程序