arch: i386: alloc: add a physical memory manager

Add a simple, bitmap-based physical memory management system.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/i386/include/kernel/alloc.h b/arch/i386/include/kernel/alloc.h
new file mode 100644
index 0000000..986bcc5
--- /dev/null
+++ b/arch/i386/include/kernel/alloc.h
@@ -0,0 +1,13 @@
+#ifndef I386_ALLOC_H
+#define I386_ALLOC_H
+
+#include <kernel/multiboot.h>
+#include <stdint.h>
+#include <stddef.h>
+
+int alloc_init(struct mboot_info *info);
+void mark_bitmap(uint32_t paddr, int present);
+uint32_t pfa_alloc_frame(void);
+void pfa_free(uint32_t paddr, int num_frames);
+
+#endif