/*
 * xscale-lock.h
 *
 * Header file for XScale cache and TLB locking API
 * See Documentation/arm/xscale/cache-lock.txt tlb-lock.txt for API docs
 *
 * Author: Deepak Saxena <dsaxena@mvista.com>
 *
 * Copyright 2000-2001 MontaVista Software Inc.
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  You should have received a copy of the  GNU General Public License along
 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _XSCALE_LOCK_H_
#define _XSCALE_LOCK_H_

#include <linux/types.h>

struct cache_capabilities
{
	u32   flags;      /* Flags defining capabilities  */
	u32   cache_size; /* Cache size in K (1024 bytes) */
	u32   max_lock;   /* Maximum lockable region in K */
};

/*
 * Flags
 */
   
/*
 * Bit 0: Cache lockability
 * Bits 1-31: Reserved for future use
 */
#define CACHE_LOCKABLE    0x00000001   /* Cache can be locked */

/*
 * Cache Types
 */
#define ICACHE            0x00
#define DCACHE            0x01

    
int cache_query(u8, struct cache_capabilities *);
int cache_lock(void *, u32, u8, const char *);
int cache_unlock(void *);
int cache_lock_init(void);


/*
 * TLB Types
 */
#define ITLB        0x00
#define DTLB        0x01

int xscale_tlb_lock(u8, u32);
int xscale_tlb_unlock(u8, u32);

#endif // _XSCALE_LOCK_H_
