diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/s390/include/asm/barrier.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/s390/include/asm/barrier.h | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/ANDROID_3.4.5/arch/s390/include/asm/barrier.h b/ANDROID_3.4.5/arch/s390/include/asm/barrier.h deleted file mode 100644 index 451273ad..00000000 --- a/ANDROID_3.4.5/arch/s390/include/asm/barrier.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Copyright IBM Corp. 1999, 2009 - * - * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> - */ - -#ifndef __ASM_BARRIER_H -#define __ASM_BARRIER_H - -/* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. - * - * This is very similar to the ppc eieio/sync instruction in that is - * does a checkpoint syncronisation & makes sure that - * all memory ops have completed wrt other CPU's ( see 7-15 POP DJB ). - */ - -#define eieio() asm volatile("bcr 15,0" : : : "memory") -#define SYNC_OTHER_CORES(x) eieio() -#define mb() eieio() -#define rmb() eieio() -#define wmb() eieio() -#define read_barrier_depends() do { } while(0) -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#define smp_read_barrier_depends() read_barrier_depends() -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() smp_mb() - -#define set_mb(var, value) do { var = value; mb(); } while (0) - -#endif /* __ASM_BARRIER_H */ |