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Enhance cpu.h with Intel model definitions and struct

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Added Intel model definitions and CPU info structure.
This commit is contained in:
Gregory Kenneth Bowne
2026-01-05 00:46:14 -08:00
committed by GitHub
parent cc2e967a4d
commit 10d3761be1
1 changed files with 35 additions and 1 deletions
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36
kernel/cpu.h
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@@ -2,8 +2,42 @@
#define CPU_H
#include <stdint.h>
#include <stdbool.h>
void cpuid(uint32_t function, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
// Specific Intel Model Definitions for your targets
#define INTEL_FAM4_486_DX 0x00 // Also 0x01
#define INTEL_FAM4_486_SX 0x02
#define INTEL_FAM4_486_DX2 0x03
#define INTEL_FAM4_486_DX4 0x08
#define INTEL_FAM5_PENTIUM 0x01 // P5
#define INTEL_FAM5_PENTIUM_MMX 0x04 // P55C
#define INTEL_FAM6_PENTIUM_PRO 0x01 // P6
#define INTEL_FAM6_PENTIUM_II 0x05 // Deschutes
#define INTEL_FAM6_PENTIUM_III 0x07 // Katmai/Coppermine
#define INTEL_FAM15_P4_WILLY 0x00 // Willamette
#define INTEL_FAM15_P4_NORTH 0x02 // Northwood
#define INTEL_FAM15_P4_PRES 0x03 // Prescott
typedef struct {
char vendor[13];
uint32_t family;
uint32_t model;
uint32_t stepping;
uint32_t type;
uint32_t max_leaf;
// Feature flags (optional, but very helpful later)
bool has_fpu;
bool has_mmx;
bool has_sse;
} cpu_info_t;
// Function Prototypes
void cpuid(uint32_t leaf, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
bool cpu_check_cpuid_support(void);
void identify_cpu(void);
// Helper to get the current CPU info after identification
cpu_info_t* cpu_get_info(void);
#endif // CPU_H