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更正cpu模块的全局变量定义
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@ -2,6 +2,33 @@
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#include "kprint.h"
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#include "printk.h"
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// cpu支持的最大cpuid指令的基础主功能号
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uint Cpu_cpuid_max_Basic_mop;
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// cpu支持的最大cpuid指令的扩展主功能号
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uint Cpu_cpuid_max_Extended_mop;
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// cpu制造商信息
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char Cpu_Manufacturer_Name[17]={0};
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// 处理器名称信息
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char Cpu_BrandName[49] = {0};
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// 处理器家族ID
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uint Cpu_Family_ID;
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// 处理器扩展家族ID
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uint Cpu_Extended_Family_ID;
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// 处理器模式ID
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uint Cpu_Model_ID;
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// 处理器扩展模式ID
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uint Cpu_Extended_Model_ID;
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// 处理器步进ID
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uint Cpu_Stepping_ID;
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// 处理器类型
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uint Cpu_Processor_Type;
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// 处理器支持的最大物理地址可寻址地址线宽度
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uint Cpu_max_phys_addrline_size;
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// 处理器支持的最大线性地址可寻址地址线宽度
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uint Cpu_max_linear_addrline_size;
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struct cpu_core_info_t cpu_core_info[MAX_CPU_NUM];
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void cpu_init(void)
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{
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// 获取处理器制造商信息
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@ -61,4 +88,11 @@ void cpu_init(void)
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kinfo("Max basic mop=%#05lx", Cpu_cpuid_max_Basic_mop);
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kinfo("Max extended mop=%#05lx", Cpu_cpuid_max_Extended_mop);
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return;
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}
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}
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void cpu_cpuid(uint32_t mop, uint32_t sop, uint32_t *eax, uint32_t*ebx, uint32_t*ecx, uint32_t*edx)
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{
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// 向eax和ecx分别输入主功能号和子功能号
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// 结果输出到eax, ebx, ecx, edx
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__asm__ __volatile__("cpuid \n\t":"=a"(*eax),"=b"(*ebx), "=c"(*ecx), "=d"(*edx):"0"(mop),"2"(sop):"memory");
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}
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@ -5,29 +5,29 @@
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#define MAX_CPU_NUM 32 // 操作系统支持的最大处理器数量
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// cpu支持的最大cpuid指令的基础主功能号
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uint Cpu_cpuid_max_Basic_mop;
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extern uint32_t Cpu_cpuid_max_Basic_mop;
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// cpu支持的最大cpuid指令的扩展主功能号
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uint Cpu_cpuid_max_Extended_mop;
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extern uint32_t Cpu_cpuid_max_Extended_mop;
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// cpu制造商信息
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char Cpu_Manufacturer_Name[17]={0};
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extern char Cpu_Manufacturer_Name[17];
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// 处理器名称信息
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char Cpu_BrandName[49] = {0};
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extern char Cpu_BrandName[49];
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// 处理器家族ID
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uint Cpu_Family_ID;
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extern uint32_t Cpu_Family_ID;
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// 处理器扩展家族ID
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uint Cpu_Extended_Family_ID;
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extern uint32_t Cpu_Extended_Family_ID;
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// 处理器模式ID
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uint Cpu_Model_ID;
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extern uint32_t Cpu_Model_ID;
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// 处理器扩展模式ID
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uint Cpu_Extended_Model_ID;
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extern uint32_t Cpu_Extended_Model_ID;
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// 处理器步进ID
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uint Cpu_Stepping_ID;
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extern uint32_t Cpu_Stepping_ID;
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// 处理器类型
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uint Cpu_Processor_Type;
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extern uint32_t Cpu_Processor_Type;
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// 处理器支持的最大物理地址可寻址地址线宽度
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uint Cpu_max_phys_addrline_size;
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extern uint32_t Cpu_max_phys_addrline_size;
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// 处理器支持的最大线性地址可寻址地址线宽度
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uint Cpu_max_linear_addrline_size;
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extern uint32_t Cpu_max_linear_addrline_size;
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/**
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* @brief 执行cpuid指令
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@ -41,12 +41,7 @@ uint Cpu_max_linear_addrline_size;
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*
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* cpuid指令参考英特尔开发手册卷2A Chapter3 3.2 Instruction
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*/
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void cpu_cpuid(uint mop, uint sop, uint *eax, uint*ebx, uint*ecx, uint*edx)
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{
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// 向eax和ecx分别输入主功能号和子功能号
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// 结果输出到eax, ebx, ecx, edx
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__asm__ __volatile__("cpuid \n\t":"=a"(*eax),"=b"(*ebx), "=c"(*ecx), "=d"(*edx):"0"(mop),"2"(sop):"memory");
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}
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void cpu_cpuid(uint32_t mop, uint32_t sop, uint32_t *eax, uint32_t*ebx, uint32_t*ecx, uint32_t*edx);
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/**
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* @brief 初始化获取处理器信息模块
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@ -54,9 +49,11 @@ void cpu_cpuid(uint mop, uint sop, uint *eax, uint*ebx, uint*ecx, uint*edx)
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*/
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void cpu_init(void);
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struct cpu_core_info
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struct cpu_core_info_t
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{
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uint64_t stack_start; // 栈基地址
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uint64_t ist_stack_start; // IST栈基地址
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uint64_t tss_vaddr; // tss地址
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}cpu_core_info[MAX_CPU_NUM];
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};
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extern struct cpu_core_info_t cpu_core_info[MAX_CPU_NUM];
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