diff options
Diffstat (limited to 'arch/x86/um/asm/barrier.h')
| -rw-r--r-- | arch/x86/um/asm/barrier.h | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h index f31e5d903161..b51aefd6ec2b 100644 --- a/arch/x86/um/asm/barrier.h +++ b/arch/x86/um/asm/barrier.h @@ -2,14 +2,8 @@ #ifndef _ASM_UM_BARRIER_H_ #define _ASM_UM_BARRIER_H_ -#include <asm/asm.h> -#include <asm/segment.h> #include <asm/cpufeatures.h> -#include <asm/cmpxchg.h> -#include <asm/nops.h> - -#include <linux/kernel.h> -#include <linux/irqflags.h> +#include <asm/alternative.h> /* * Force strict CPU ordering. @@ -18,9 +12,9 @@ */ #ifdef CONFIG_X86_32 -#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2) -#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2) -#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM) +#define mb() alternative("lock addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2) +#define rmb() alternative("lock addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2) +#define wmb() alternative("lock addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM) #else /* CONFIG_X86_32 */ @@ -30,9 +24,6 @@ #endif /* CONFIG_X86_32 */ -#define dma_rmb() barrier() -#define dma_wmb() barrier() - #include <asm-generic/barrier.h> #endif |