#ifndef __KMALLOC_H__
#define __KMALLOC_H__

#include <mm/alloc_page.h>
#include <l4/lib/list.h>
/* List member to keep track of free and unused regions in subpages.
 * Smallest unit it represents is one byte, but note that it is also
 * used for describing regions that span across multiple pages. */
struct subpage_area {
	struct list_head list;
	unsigned int vaddr;
	unsigned int size;
	unsigned int used;
	unsigned int head_of_pages;	/* Means head of alloc_page() */
};

extern struct subpage_area subpage_area_start;

/* Kmalloc initialisation */
void kmalloc_init(void);

/* Kmalloc allocation functions */
void *kmalloc(int size);
void *kzalloc(int size);
int kfree(void *vaddr);

#endif /* __KMALLOC_H__ */