implements first free mem block

kernel/include/kernel/pmm.h

@@ -1,20 +1,4 @@
-#include <stdbool.h>
-#include <stdint.h>
-#include <stddef.h>
-
 #ifndef ARCH_PMM_H
 #define ARCH_PMM_H
 
-#define PMM_BLOCKS_PER_BYTE 8 // This is for the Bitmap
-#define PMM_BLOCK_SIZE 4096 // 4KiB
-#define PMM_BLOCK_ALIGN (PMM_BLOCK_SIZE) // must be aligned at 4KiB
-
-void set_grub_mem_map(uint32_t addr, uint32_t len);
-uint32_t pmm_get_block_count(void);
-
-int pmm_first_free(void);
-int pmm_first_free_s(size_t pages);
-
-void pmm_init(size_t mem_size, uint32_t* bitmap);
-
 #endif