acrn-kernel/arch/arm/common/vlock.h

22 lines
538 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* vlock.h - simple voting lock implementation
*
* Created by: Dave Martin, 2012-08-16
* Copyright: (C) 2012-2013 Linaro Limited
*/
#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 */