| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* include/asm-x86_64/rwlock.h |
| 2 | * |
| 3 | * Helpers used by both rw spinlocks and rw semaphores. |
| 4 | * |
| 5 | * Based in part on code from semaphore.h and |
| 6 | * spinlock.h Copyright 1996 Linus Torvalds. |
| 7 | * |
| 8 | * Copyright 1999 Red Hat, Inc. |
| 9 | * Copyright 2001,2002 SuSE labs |
| 10 | * |
| 11 | * Written by Benjamin LaHaise. |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or |
| 14 | * modify it under the terms of the GNU General Public License |
| 15 | * as published by the Free Software Foundation; either version |
| 16 | * 2 of the License, or (at your option) any later version. |
| 17 | */ |
| 18 | #ifndef _ASM_X86_64_RWLOCK_H |
| 19 | #define _ASM_X86_64_RWLOCK_H |
| 20 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #define RW_LOCK_BIAS 0x01000000 |
| Andi Kleen | 9a0b26e | 2006-09-26 10:52:28 +0200 | [diff] [blame] | 22 | #define RW_LOCK_BIAS_STR "0x01000000" |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
| Andi Kleen | 8b059d2 | 2006-09-26 10:52:32 +0200 | [diff] [blame] | 24 | /* Actual code is in asm/spinlock.h or in arch/x86_64/lib/rwlock.S */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
| 26 | #endif |