diff options
Diffstat (limited to 'ANDROID_3.4.5/include/asm-generic/barrier.h')
| -rw-r--r-- | ANDROID_3.4.5/include/asm-generic/barrier.h | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/ANDROID_3.4.5/include/asm-generic/barrier.h b/ANDROID_3.4.5/include/asm-generic/barrier.h deleted file mode 100644 index 639d7a4d..00000000 --- a/ANDROID_3.4.5/include/asm-generic/barrier.h +++ /dev/null @@ -1,50 +0,0 @@ -/* Generic barrier definitions, based on MN10300 definitions. - * - * It should be possible to use these on really simple architectures, - * but it serves more as a starting point for new ports. - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef __ASM_GENERIC_BARRIER_H -#define __ASM_GENERIC_BARRIER_H - -#ifndef __ASSEMBLY__ - -#define nop() asm volatile ("nop") - -/* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. - * - * This implementation only contains a compiler barrier. - */ - -#define mb() asm volatile ("": : :"memory") -#define rmb() mb() -#define wmb() asm volatile ("": : :"memory") - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#endif - -#define set_mb(var, value) do { var = value; mb(); } while (0) -#define set_wmb(var, value) do { var = value; wmb(); } while (0) - -#define read_barrier_depends() do {} while (0) -#define smp_read_barrier_depends() do {} while (0) - -#endif /* !__ASSEMBLY__ */ -#endif /* __ASM_GENERIC_BARRIER_H */ |