mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-08 18:26:48 +00:00
2813126e31
* 引入cargo * 取消对Cargo.lock的跟踪 * 解决vscode报错问题 * new: rust的代码能够调用c语言的printk_color * 1、将原本run.sh的工作拆解，变为几个不同的make命令 2、在docker镜像中编译rust * 更改workflow * update workflow * new: 解决workflow无法通过编译的问题
242 lines
9.5 KiB
C
242 lines
9.5 KiB
C
#include "acpi.h"
|
||
#include <common/printk.h>
|
||
#include <common/kprint.h>
|
||
#include <driver/multiboot2/multiboot2.h>
|
||
#include <mm/mm.h>
|
||
#include <mm/mmio.h>
|
||
|
||
#define acpi_get_RSDT_entry_vaddr(phys_addr) (acpi_description_header_base + (phys_addr)-acpi_RSDT_entry_phys_base) // 获取RSDT entry的虚拟地址
|
||
// #define acpi_get_XSDT_entry_vaddr(phys_addr) (ACPI_DESCRIPTION_HEDERS_BASE + (phys_addr)-acpi_XSDT_entry_phys_base) // 获取XSDT entry的虚拟地址
|
||
|
||
static struct acpi_RSDP_t *rsdpv1;
|
||
static struct acpi_RSDP_2_t *rsdpv2;
|
||
static struct acpi_RSDT_Structure_t *rsdt;
|
||
static struct acpi_XSDT_Structure_t *xsdt;
|
||
|
||
static struct multiboot_tag_old_acpi_t old_acpi;
|
||
static struct multiboot_tag_new_acpi_t new_acpi;
|
||
|
||
static ul acpi_RSDT_offset = 0;
|
||
static ul acpi_XSDT_offset = 0;
|
||
static uint acpi_RSDT_Entry_num = 0;
|
||
static uint acpi_XSDT_Entry_num = 0;
|
||
|
||
static ul acpi_RSDT_entry_phys_base = 0; // RSDT中的第一个entry所在物理页的基地址
|
||
|
||
static uint64_t acpi_madt_vaddr = 0; // MADT的虚拟地址
|
||
static uint64_t acpi_rsdt_virt_addr_base = 0; // RSDT的虚拟地址
|
||
static uint64_t acpi_description_header_base = 0; // RSDT中的第一个entry所在虚拟地址
|
||
|
||
// static ul acpi_XSDT_entry_phys_base = 0; // XSDT中的第一个entry所在物理页的基地址
|
||
|
||
/**
|
||
* @brief 迭代器，用于迭代描述符头（位于ACPI标准文件的Table 5-29）
|
||
* @param _fun 迭代操作调用的函数
|
||
* @param _data 数据
|
||
*/
|
||
void acpi_iter_SDT(bool (*_fun)(const struct acpi_system_description_table_header_t *, void *),
|
||
void *_data)
|
||
{
|
||
|
||
struct acpi_system_description_table_header_t *sdt_header;
|
||
if (acpi_use_xsdt)
|
||
{
|
||
ul *ent = &(xsdt->Entry);
|
||
for (int i = 0; i < acpi_XSDT_Entry_num; ++i)
|
||
{
|
||
mm_map_phys_addr(acpi_description_header_base + PAGE_2M_SIZE * i, (*(ent + i)) & PAGE_2M_MASK, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD, false);
|
||
sdt_header = (struct acpi_system_description_table_header_t *)((ul)(acpi_description_header_base + PAGE_2M_SIZE * i));
|
||
|
||
if (_fun(sdt_header, _data) == true)
|
||
return;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
uint *ent = &(rsdt->Entry);
|
||
for (int i = 0; i < acpi_RSDT_Entry_num; ++i)
|
||
{
|
||
|
||
sdt_header = (struct acpi_system_description_table_header_t *)(acpi_get_RSDT_entry_vaddr((ul)(*(ent + i))));
|
||
|
||
if (_fun(sdt_header, _data) == true)
|
||
return;
|
||
}
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* @brief 获取MADT信息 Multiple APIC Description Table
|
||
*
|
||
* @param _iter_data 要被迭代的信息的结构体
|
||
* @param _data 返回的MADT的虚拟地址
|
||
* @param count 返回数组的长度
|
||
* @return true
|
||
* @return false
|
||
*/
|
||
bool acpi_get_MADT(const struct acpi_system_description_table_header_t *_iter_data, void *_data)
|
||
{
|
||
if (!(_iter_data->Signature[0] == 'A' && _iter_data->Signature[1] == 'P' && _iter_data->Signature[2] == 'I' && _iter_data->Signature[3] == 'C'))
|
||
return false;
|
||
//*(struct acpi_Multiple_APIC_Description_Table_t *)_data = *(struct acpi_Multiple_APIC_Description_Table_t *)_iter_data;
|
||
// 返回MADT的虚拟地址
|
||
*(ul *)_data = (ul)_iter_data;
|
||
acpi_madt_vaddr = (ul)_iter_data;
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* @brief 获取HPET HPET_description_table
|
||
*
|
||
* @param _iter_data 要被迭代的信息的结构体
|
||
* @param _data 返回的HPET表的虚拟地址
|
||
* @return true
|
||
* @return false
|
||
*/
|
||
bool acpi_get_HPET(const struct acpi_system_description_table_header_t *_iter_data, void *_data)
|
||
{
|
||
if (!(_iter_data->Signature[0] == 'H' && _iter_data->Signature[1] == 'P' && _iter_data->Signature[2] == 'E' && _iter_data->Signature[3] == 'T'))
|
||
return false;
|
||
*(ul *)_data = (ul)_iter_data;
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* @brief 初始化acpi模块
|
||
*
|
||
*/
|
||
// todo: 修复bug：当物理机上提供了rsdpv2之后，rsdpv1是不提供的（物理地址为0），因此需要手动判断rsdp的版本信息，然后做对应的解析。
|
||
void acpi_init()
|
||
{
|
||
kinfo("Initializing ACPI...");
|
||
|
||
// 获取物理地址
|
||
int reserved;
|
||
|
||
multiboot2_iter(multiboot2_get_acpi_old_RSDP, &old_acpi, &reserved);
|
||
rsdpv1 = &(old_acpi.rsdp);
|
||
|
||
multiboot2_iter(multiboot2_get_acpi_new_RSDP, &new_acpi, &reserved);
|
||
rsdpv2 = &(new_acpi.rsdp);
|
||
|
||
uint64_t paddr = 0;
|
||
// An ACPI-compatible OS must use the XSDT if present
|
||
if (rsdpv2->XsdtAddress != 0x00UL)
|
||
{
|
||
// 不要删除这段注释（因为还不确定是代码的bug，还是真机的bug）
|
||
/*
|
||
acpi_use_xsdt = true;
|
||
ul xsdt_phys_base = rsdpv2->XsdtAddress & PAGE_2M_MASK;
|
||
acpi_XSDT_offset = rsdpv2->XsdtAddress - xsdt_phys_base;
|
||
mm_map_phys_addr(ACPI_XSDT_VIRT_ADDR_BASE, xsdt_phys_base, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD, false);
|
||
kdebug("XSDT mapped!");
|
||
|
||
xsdt = (struct acpi_XSDT_Structure_t *)(ACPI_XSDT_VIRT_ADDR_BASE + acpi_XSDT_offset);
|
||
// 计算RSDT Entry的数量
|
||
kdebug("offset=%d", sizeof(xsdt->header));
|
||
kdebug("xsdt sign=%s", xsdt->header.Signature);
|
||
acpi_XSDT_Entry_num = (xsdt->header.Length - sizeof(xsdt->header)) / 8;
|
||
|
||
printk_color(ORANGE, BLACK, "XSDT Length=%dbytes.\n", xsdt->header.Length);
|
||
printk_color(ORANGE, BLACK, "XSDT Entry num=%d\n", acpi_XSDT_Entry_num);
|
||
|
||
mm_map_phys_addr(ACPI_XSDT_VIRT_ADDR_BASE, xsdt_phys_base, xsdt->header.Length + PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD, false);
|
||
// 映射所有的Entry的物理地址
|
||
ul *ent = &(xsdt->Entry);
|
||
for (int j = 0; j < acpi_XSDT_Entry_num; ++j)
|
||
{
|
||
kdebug("entry=%#018lx, virt=%#018lx", (*(ent + j)) & PAGE_2M_MASK, ACPI_XSDT_DESCRIPTION_HEDERS_BASE + PAGE_2M_SIZE * j);
|
||
// 映射RSDT ENTRY的物理地址
|
||
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, false);
|
||
}
|
||
*/
|
||
|
||
// 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！！！
|
||
ul rsdt_phys_base = rsdpv2->rsdp1.RsdtAddress & PAGE_2M_MASK;
|
||
acpi_RSDT_offset = rsdpv2->rsdp1.RsdtAddress - rsdt_phys_base;
|
||
|
||
//申请mmio空间
|
||
uint64_t size = 0;
|
||
mmio_create(PAGE_2M_SIZE, VM_IO | VM_DONTCOPY, &acpi_rsdt_virt_addr_base, &size);
|
||
|
||
//映射rsdt表
|
||
paddr = (uint64_t)rsdt_phys_base;
|
||
mm_map(&initial_mm, acpi_rsdt_virt_addr_base, PAGE_2M_SIZE, paddr);
|
||
|
||
// rsdt表虚拟地址
|
||
rsdt = (struct acpi_RSDT_Structure_t *)(acpi_rsdt_virt_addr_base + acpi_RSDT_offset);
|
||
kdebug("RSDT mapped!(v2)");
|
||
|
||
// 计算RSDT Entry的数量
|
||
kdebug("offset=%d", sizeof(rsdt->header));
|
||
acpi_RSDT_Entry_num = (rsdt->header.Length - 36) / 4;
|
||
|
||
printk_color(ORANGE, BLACK, "RSDT Length=%dbytes.\n", rsdt->header.Length);
|
||
printk_color(ORANGE, BLACK, "RSDT Entry num=%d\n", acpi_RSDT_Entry_num);
|
||
|
||
//申请mmio空间
|
||
mmio_create(PAGE_2M_SIZE, VM_IO | VM_DONTCOPY, &acpi_description_header_base, &size);
|
||
|
||
// 映射所有的Entry的物理地址
|
||
acpi_RSDT_entry_phys_base = ((ul)(rsdt->Entry)) & PAGE_2M_MASK;
|
||
// 由于地址只是32bit的，并且存在脏数据，这里需要手动清除高32bit，否则会触发#GP
|
||
acpi_RSDT_entry_phys_base = MASK_HIGH_32bit(acpi_RSDT_entry_phys_base);
|
||
|
||
paddr = (uint64_t)acpi_RSDT_entry_phys_base;
|
||
mm_map(&initial_mm, acpi_description_header_base, PAGE_2M_SIZE, paddr);
|
||
}
|
||
else if (rsdpv1->RsdtAddress != (uint)0x00UL)
|
||
{
|
||
// rsdt表物理地址
|
||
ul rsdt_phys_base = rsdpv1->RsdtAddress & PAGE_2M_MASK;
|
||
acpi_RSDT_offset = rsdpv1->RsdtAddress - rsdt_phys_base;
|
||
|
||
kdebug("rsdpv1->RsdtAddress=%#018lx", rsdpv1->RsdtAddress);
|
||
//申请mmio空间
|
||
uint64_t size = 0;
|
||
mmio_create(PAGE_2M_SIZE, VM_IO | VM_DONTCOPY, &acpi_rsdt_virt_addr_base, &size);
|
||
|
||
// kdebug("acpi_rsdt_virt_addr_base = %#018lx,size= %#010lx", acpi_rsdt_virt_addr_base, size);
|
||
//映射rsdt表
|
||
paddr = (uint64_t)rsdt_phys_base;
|
||
mm_map(&initial_mm, acpi_rsdt_virt_addr_base, PAGE_2M_SIZE, paddr);
|
||
// rsdt表虚拟地址
|
||
rsdt = (struct acpi_RSDT_Structure_t *)(acpi_rsdt_virt_addr_base + acpi_RSDT_offset);
|
||
kdebug("RSDT mapped!");
|
||
|
||
// kdebug("length = %d",rsdt->header.Length);
|
||
// 计算RSDT Entry的数量
|
||
// kdebug("offset=%d", sizeof(rsdt->header));
|
||
|
||
acpi_RSDT_Entry_num = (rsdt->header.Length - 36) / 4;
|
||
|
||
printk_color(ORANGE, BLACK, "RSDT Length=%dbytes.\n", rsdt->header.Length);
|
||
printk_color(ORANGE, BLACK, "RSDT Entry num=%d\n", acpi_RSDT_Entry_num);
|
||
|
||
//申请mmio空间
|
||
mmio_create(PAGE_2M_SIZE, VM_IO | VM_DONTCOPY, &acpi_description_header_base, &size);
|
||
|
||
// 映射所有的Entry的物理地址
|
||
acpi_RSDT_entry_phys_base = ((ul)(rsdt->Entry)) & PAGE_2M_MASK;
|
||
// 由于地址只是32bit的，并且存在脏数据，这里需要手动清除高32bit，否则会触发#GP
|
||
acpi_RSDT_entry_phys_base = MASK_HIGH_32bit(acpi_RSDT_entry_phys_base);
|
||
|
||
paddr = (uint64_t)acpi_RSDT_entry_phys_base;
|
||
mm_map(&initial_mm, acpi_description_header_base, PAGE_2M_SIZE, paddr);
|
||
// kinfo("entry mapped!");
|
||
|
||
}
|
||
else
|
||
{
|
||
// should not reach here!
|
||
kBUG("At acpi_init(): Cannot get right SDT!");
|
||
while (1)
|
||
;
|
||
}
|
||
|
||
kinfo("ACPI module initialized!");
|
||
return;
|
||
}
|