memory allocator/pager, plus other stuff

1 files changed, 44 insertions, 0 deletions

diff --git a/kernel/memory/physalloc.h b/kernel/memory/physalloc.h
new file mode 100644
index 0000000..7afe998
--- /dev/null
+++ b/kernel/memory/physalloc.h
@@ -0,0 +1,44 @@
+/**
+ * @file physalloc.h
+ *
+ * @author Freya Murphy <freya@freyacat.org>
+ *
+ * Physical page allocator functions
+ */
+
+#ifndef PHYSALLOC_H_
+#define PHYSALLOC_H_
+
+#include <comus/memory.h>
+
+/**
+ * Initalize the physical page allocator
+ */
+void physalloc_init(struct memory_map *map);
+
+/**
+ * Allocates a single physical page in memory
+ * @preturns the physical address of the page
+ */
+void *alloc_phys_page(void);
+
+/**
+ * Allocates count physical pages in memory
+ * @returns the physical address of the first page
+ */
+void *alloc_phys_pages(int count);
+
+/**
+* Frees a single physical page in memory
+ * @param ptr - the physical address of the page
+ */
+void free_phys_page(void *ptr);
+
+/**
+ * Frees count physical pages in memory
+ * @param ptr - the physical address of the first page
+ * @param count - the number of pages in the list
+ */
+void free_phys_pages(void *ptr, int count);
+
+#endif /* physalloc.h */