[deliverable/linux.git] / arch / arm / common / vlock.h

/*
 * vlock.h - simple voting lock implementation
 *
 * Created by:	Dave Martin, 2012-08-16
 * Copyright:	(C) 2012-2013  Linaro Limited
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef __VLOCK_H
#define __VLOCK_H

#include <asm/mcpm.h>

/* Offsets and sizes are rounded to a word (4 bytes) */
#define VLOCK_OWNER_OFFSET	0
#define VLOCK_VOTING_OFFSET	4
#define VLOCK_VOTING_SIZE	((MAX_CPUS_PER_CLUSTER + 3) / 4 * 4)
#define VLOCK_SIZE		(VLOCK_VOTING_OFFSET + VLOCK_VOTING_SIZE)
#define VLOCK_OWNER_NONE	0

#endif /* ! __VLOCK_H */
Commit	Line	Data
9762f12d DM	1	/*
	2	* vlock.h - simple voting lock implementation
	3	*
	4	* Created by: Dave Martin, 2012-08-16
	5	* Copyright: (C) 2012-2013 Linaro Limited
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*/
	16
	17	#ifndef __VLOCK_H
	18	#define __VLOCK_H
	19
	20	#include <asm/mcpm.h>
	21
	22	/* Offsets and sizes are rounded to a word (4 bytes) */
	23	#define VLOCK_OWNER_OFFSET 0
	24	#define VLOCK_VOTING_OFFSET 4
	25	#define VLOCK_VOTING_SIZE ((MAX_CPUS_PER_CLUSTER + 3) / 4 * 4)
	26	#define VLOCK_SIZE (VLOCK_VOTING_OFFSET + VLOCK_VOTING_SIZE)
	27	#define VLOCK_OWNER_NONE 0
	28
	29	#endif /* ! __VLOCK_H */