#include <stdint.h>

#define PTE_BIT_PRESENT     0x1                 // Present bit
#define PTE_BIT_RW          0x2                 // Read/write bit
#define PTE_BIT_US          0x4                 // User and Supervisor bit
#define PTE_BIT_NX          0x4000000000000000  // Non-executable bit
#define PTE_BIT_UNCACHABLE  (1 << 4)

#define PAGE_SIZE 4096

void tlb_flush(void);
void vmm_map_page(uint64_t *page_map, uint64_t virt_address, uint64_t phys_address, uint64_t flags);
int vmm_map_contigious_pages(uint64_t *page_map, uint64_t virt_addr, uint64_t phys_addr, uint64_t size, uint64_t flags);
void vmm_free_page(uint64_t *page_map, uint64_t virt_addr);
void vmm_init();
void vmm_set_ctx(uint64_t *page_map);
uint64_t vmm_get_phys_addr(uint64_t *page_map, uint64_t virt_addr);
uint64_t kget_phys_addr(uint64_t *virt_addr);
void *va_alloc_contigious_pages(uint64_t size);
void kmap_pages(void *phys_addr, uint64_t size, uint64_t flags);
void kunmap_pages(void *addr, uint64_t size);

typedef char link_symbol_ptr[];