| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 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 */ |