Started implementing a boot-time memory manager

sandbox/memblock/memblock.h

@@ -0,0 +1,48 @@
+#ifndef MEMBLOCK_H_
+#define MEMBLOCK_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define MEMBLOCK_INIT_MEMORY_REGION_COUNT 128
+#define MEMBLOCK_INIT_RESERVED_REGION_COUNT 128
+
+#define __for_each_mem_range(i, type_a, type_b, p_start, p_end) \
+
+typedef uint64_t memblock_index_t;
+
+typedef struct memblock_region {
+	/* the address of the first byte that makes up the region */
+	uintptr_t base;
+	/* the address of the last byte that makes up the region */
+	size_t limit;
+} memblock_region_t;
+
+typedef struct memblock_type {
+	struct memblock_region *regions;
+	unsigned int count;
+	unsigned int max;
+	const char *name;
+} memblock_type_t;
+
+typedef struct memblock {
+	struct memblock_type memory;
+	struct memblock_type reserved;
+} memblock_t;
+
+typedef struct memblock_iter {
+	memblock_index_t idx;
+	uintptr_t base;
+	size_t limit;
+} memblock_iter_t;
+
+extern memblock_t memblock;
+
+extern int __next_mem_range(memblock_iter_t *it);
+
+extern int memblock_add(uintptr_t base, size_t size);
+extern int memblock_reserve(uintptr_t base, size_t size);
+
+extern uintptr_t memblock_alloc(size_t size);
+
+#endif