arch/arm/common/vlock.h

   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 */