linux/arch/arm/common/vlock.h
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   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