RockOS/kernel/memory/mm.h

#ifndef KMM_H
#define KMM_H

#include <stdint.h>

#define PAGE_PRESENT  0x1
#define PAGE_WRITABLE 0x2
#define PAGE_USER     0x4

#define PAGE_SIZE 4096

typedef struct __attribute__((packed)) {
    uint32_t addr;
} mem_page_t;

void init_pmm(void* mmap_base, uint32_t mmap_limit);
void init_page_tables();

void* p_alloc_frame();

uint32_t total_free_memory();

void* create_task_pd();
void* clone_task_pd();

void map_page(uint32_t vaddr, uint32_t paddr, uint32_t flags);

void load_pd(void* paddr);

void flush_tlb();
void disable_pae();

#endif