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/* linux/mm/bigphysarea.h, M. Welsh (mdw@cs.cornell.edu)
* Copyright (c) 1996 by Matt Welsh.
* Extended by Roger Butenuth (butenuth@uni-paderborn.de), October 1997
*
* This is a set of routines which allow you to reserve a large (?)
* amount of physical memory at boot-time, which can be allocated/deallocated
* by drivers. This memory is intended to be used for devices such as
* video framegrabbers which need a lot of physical RAM (above the amount
* allocated by kmalloc). This is by no means efficient or recommended;
* to be used only in extreme circumstances.
*
*/
#ifndef __LINUX_BIGPHYSAREA_H
#define __LINUX_BIGPHYSAREA_H
#include <linux/types.h>
extern caddr_t bigphysarea;
/* original interface */
extern void bigphysarea_setup(char *str, int *ints);
extern unsigned long bigphysarea_init(unsigned long mem_start, unsigned long mem_end);
extern caddr_t bigphysarea_alloc(int size);
extern void bigphysarea_free(caddr_t addr, int size);
/* new interface */
extern caddr_t bigphysarea_alloc_pages(int count, int align, int priority);
extern void bigphysarea_free_pages(caddr_t base);
#endif __LINUX_BIGPHYSAREA_H
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