diff --git a/kernel/pmm.h b/kernel/pmm.h
new file mode 100644
index 0000000..75dfdaf
--- /dev/null
+++ b/kernel/pmm.h
@@ -0,0 +1,21 @@
+#ifndef PMM_H
+#define PMM_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "memmap.h"
+#include "paging.h" // For PAGE_SIZE
+
+#define BLOCKS_PER_BYTE 8
+
+void pmm_init(memory_map_entry_t* mmap, uint32_t mmap_size, uintptr_t bitmap_addr);
+void pmm_mark_used(uintptr_t addr);
+void pmm_mark_free(uintptr_t addr);
+
+void* pmm_alloc_block();
+void  pmm_free_block(void* addr);
+
+uint32_t pmm_get_used_block_count();
+uint32_t pmm_get_free_block_count();
+
+#endif