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检测处理器核心数量
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@ -22,6 +22,8 @@ static uint acpi_XSDT_Entry_num = 0;
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static ul acpi_RSDT_entry_phys_base = 0; // RSDT中的第一个entry所在物理页的基地址
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static uint64_t acpi_madt_vaddr = 0; // MADT的虚拟地址
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// static ul acpi_XSDT_entry_phys_base = 0; // XSDT中的第一个entry所在物理页的基地址
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/**
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@ -53,7 +55,6 @@ void acpi_iter_SDT(bool (*_fun)(const struct acpi_system_description_table_heade
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{
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sdt_header = (struct acpi_system_description_table_header_t *)(acpi_get_RSDT_entry_vaddr((ul)(*(ent + i))));
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if (_fun(sdt_header, _data) == true)
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return;
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@ -79,10 +80,11 @@ bool acpi_get_MADT(const struct acpi_system_description_table_header_t *_iter_da
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//*(struct acpi_Multiple_APIC_Description_Table_t *)_data = *(struct acpi_Multiple_APIC_Description_Table_t *)_iter_data;
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// 返回MADT的虚拟地址
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*(ul *)_data = (ul)_iter_data;
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acpi_madt_vaddr = _iter_data;
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return true;
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}
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/**
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* @brief 初始化acpi模块
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*
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@ -138,7 +140,7 @@ void acpi_init()
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mm_map_phys_addr(ACPI_XSDT_DESCRIPTION_HEDERS_BASE + PAGE_2M_SIZE * j, (*(ent + j)) & PAGE_2M_MASK, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
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}
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*/
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// 由于解析XSDT出现问题。暂时只使用Rsdpv2的rsdt,但是这是不符合ACPI规范的!!!
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// 由于解析XSDT出现问题。暂时只使用Rsdpv2的rsdt,但是这是不符合ACPI规范的!!!
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ul rsdt_phys_base = rsdpv2->rsdp1.RsdtAddress & PAGE_2M_MASK;
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acpi_RSDT_offset = rsdpv2->rsdp1.RsdtAddress - rsdt_phys_base;
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mm_map_phys_addr(ACPI_RSDT_VIRT_ADDR_BASE, rsdt_phys_base, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
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@ -162,15 +162,6 @@ void acpi_iter_SDT(bool (*_fun)(const struct acpi_system_description_table_heade
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bool acpi_get_MADT(const struct acpi_system_description_table_header_t *_iter_data, void *_data);
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/**
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* @brief 迭代器,用于迭代中断控制器结构(Interrupt Controller Structure)(位于ACPI标准文件的Table 5-45)
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* @param _fun 迭代操作调用的函数
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* @param _data 数据
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*/
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void acpi_iter_Interrupt_Controller_Structure(bool (*_fun)(const struct apic_Interrupt_Controller_Structure_header_t *, void *),
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void *_data);
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// 初始化acpi模块
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void acpi_init();
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@ -24,7 +24,6 @@ void apic_io_apic_init()
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{
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ul madt_addr;
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kdebug("madt_addr = %#018lx", (ul)madt_addr);
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acpi_iter_SDT(acpi_get_MADT, &madt_addr);
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madt = (struct acpi_Multiple_APIC_Description_Table_t *)madt_addr;
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@ -453,4 +452,38 @@ void apic_ioapic_edge_ack(ul irq_num) // 边沿触发
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"movq $0x80b, %%rcx \n\t"
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"wrmsr \n\t" ::
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: "memory");
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}
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/**
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* @brief 读取指定类型的 Interrupt Control Structure
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*
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* @param type ics的类型
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* @param ret_vaddr 对应的ICS的虚拟地址数组
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* @param total 返回数组的元素总个数
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* @return uint
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*/
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uint apic_get_ics(const uint type, ul *ret_vaddr[], uint *total)
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{
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void *ent = (void *)(madt) + sizeof(struct acpi_Multiple_APIC_Description_Table_t);
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struct apic_Interrupt_Controller_Structure_header_t *header = (struct apic_Interrupt_Controller_Structure_header_t *)ent;
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bool flag = false;
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uint cnt = 0;
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while (header->length > 2)
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{
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header = (struct apic_Interrupt_Controller_Structure_header_t *)ent;
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if (header->type == type)
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{
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*(ret_vaddr[cnt++]) = (ul)ent;
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flag = true;
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}
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ent += header->length;
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}
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*total = cnt;
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if (!flag)
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return APIC_E_NOTFOUND;
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else
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return APIC_SUCCESS;
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}
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@ -5,6 +5,9 @@
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#include "../../../exception/irq.h"
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#include "../../../mm/mm.h"
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#define APIC_SUCCESS 0
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#define APIC_E_NOTFOUND 1
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#define APIC_IO_APIC_VIRT_BASE_ADDR SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE + IO_APIC_MAPPING_OFFSET
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#define APIC_LOCAL_APIC_VIRT_BASE_ADDR SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE + LOCAL_APIC_MAPPING_OFFSET
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@ -70,6 +73,8 @@
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// 分频配置寄存器(定时器专用)
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#define LOCAL_APIC_OFFSET_Local_APIC_CLKDIV 0x3e0
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/*
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1: LVT CMCI
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@ -270,10 +275,20 @@ void apic_ioapic_write_rte(unsigned char index, ul value);
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*/
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void apic_init();
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/**
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* @brief 读取指定类型的 Interrupt Control Structure
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*
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* @param type ics的类型
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* @param ret_vaddr 对应的ICS的虚拟地址数组
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* @param total 返回数组的元素总个数
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* @return uint
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*/
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uint apic_get_ics(const uint type, ul *ret_vaddr[], uint * total);
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// =========== 中断控制操作接口 ============
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void apic_ioapic_enable(ul irq_num);
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void apic_ioapic_disable(ul irq_num);
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ul apic_ioapic_install(ul irq_num, void *arg);
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void apic_ioapic_uninstall(ul irq_num);
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void apic_ioapic_level_ack(ul irq_num); // 电平触发
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void apic_ioapic_edge_ack(ul irq_num); // 边沿触发
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void apic_ioapic_edge_ack(ul irq_num); // 边沿触发
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