42_KFS/headers/memory.h

#pragma once

#include <stddef.h>

#define PRESENT    (1 << 0)
#define RW         (1 << 1)
#define SUPERVISOR (0 << 2)
#define ACCESSED   (1 << 4)
#define INIT_FLAGS (PRESENT | RW | SUPERVISOR)
#define PAGE_SIZE  4096
#define KERN_START 0xC0000000

void init_memory(void);
void *alloc_frames(size_t size);
int free_frames(void *frame_ptr, size_t size);
void *alloc_pages(size_t size);
int free_pages(void *page_ptr, size_t size);