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#ifndef MELVIX_PAGING_H
#define MELVIX_PAGING_H
#include <stdint.h>
#define PD_PRESENT 1 << 0
#define PD_RW 1 << 1
#define PD_ALL_PRIV 1 << 2
#define PD_WRITETHR 1 << 3
#define PD_CACHE_D 1 << 4
#define PD_ACCESSED 1 << 5
#define PD_4M_PAGE 1 << 7
#define PT_PRESENT 1 << 0
#define PT_RW 1 << 1
#define PT_ALL_PRIV 1 << 2
#define PT_WRITETHR 1 << 3
#define PT_CACHE_D 1 << 4
#define PT_ACCESSED 1 << 5
#define PT_DIRTY 1 << 6
#define PT_GLOBAL 1 << 8
#define PT_USED 1 << 9
int paging_enabled;
uint32_t *current_page_directory;
void paging_install();
void paging_enable();
void paging_disable();
void paging_switch_directory(int user);
void paging_map(uint32_t phy, uint32_t virt, uint16_t flags);
uint32_t paging_get_phys(uint32_t virt);
uint16_t paging_get_flags(uint32_t virt);
void paging_set_flags(uint32_t virt, uint32_t count, uint16_t flags);
void paging_set_flag_up(uint32_t virt, uint32_t count, uint32_t flag);
void paging_set_flag_down(uint32_t virt, uint32_t count, uint32_t flag);
void paging_set_present(uint32_t virt, uint32_t count);
void paging_set_absent(uint32_t virt, uint32_t count);
void paging_set_used(uint32_t virt, uint32_t count);
void paging_set_free(uint32_t virt, uint32_t count);
void paging_set_user(uint32_t virt, uint32_t count);
uint32_t paging_find_pages(uint32_t count);
uint32_t paging_alloc_pages(uint32_t count);
uint32_t paging_get_used_pages();
#endif
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