idk we're trying out pmm

kernel/include/kernel/_kernel.h

@@ -7,6 +7,5 @@ void kwarn(const char*);
 
 void kinfo(const char*);
 
-
 #endif
 

kernel/include/kernel/paging.h

@@ -3,14 +3,4 @@
 #ifndef ARCH_PAGING_H
 #define ARCH_PAGING_H
 
-#define PAGE_TABLE_ENTRIES 1024
-#define PAGE_DIRECTORY_ENTRIES 1024
-
-void load_page_directory(uint32_t*);
-
-void enable_paging();
-
-
-void setup_paging(void);
-
 #endif

kernel/include/kernel/pmm.h

@@ -0,0 +1,20 @@
+#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