xref: /openbmc/linux/arch/arm/common/vlock.h (revision 1802d0be)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * vlock.h - simple voting lock implementation
4  *
5  * Created by:	Dave Martin, 2012-08-16
6  * Copyright:	(C) 2012-2013  Linaro Limited
7  */
8 
9 #ifndef __VLOCK_H
10 #define __VLOCK_H
11 
12 #include <asm/mcpm.h>
13 
14 /* Offsets and sizes are rounded to a word (4 bytes) */
15 #define VLOCK_OWNER_OFFSET	0
16 #define VLOCK_VOTING_OFFSET	4
17 #define VLOCK_VOTING_SIZE	((MAX_CPUS_PER_CLUSTER + 3) / 4 * 4)
18 #define VLOCK_SIZE		(VLOCK_VOTING_OFFSET + VLOCK_VOTING_SIZE)
19 #define VLOCK_OWNER_NONE	0
20 
21 #endif /* ! __VLOCK_H */
22