kernel: pmm

kernel-src/include/kernel/pmm.h

@@ -0,0 +1,21 @@
+#ifndef _PMM_H
+#define _PMM_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define PMM_SECTION_COUNT 3
+#define PMM_SECTION_1MB 0
+#define PMM_SECTION_4GB 1
+#define PMM_SECTION_DEFAULT 2
+
+void *pmm_alloc(size_t count, int flags);
+void  pmm_free(void *addr, size_t count);
+void  pmm_init();
+
+extern uintptr_t hhdmbase;
+
+#define MAKE_HHDM(x) (void *)((uintptr_t)x + hhdmbase)
+#define FROM_HHDM(x) (void *)((uintptr_t)x - hhdmbase)
+
+#endif