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9762f12d DM |
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 */ |