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< $FreeBSD: head/sys/dev/cxgb/cxgb_osdep.h 185162 2008-11-22 05:55:56Z kmacy $
---
> $FreeBSD: head/sys/dev/cxgb/cxgb_osdep.h 185199 2008-11-23 07:30:07Z kmacy $
119a120,143
> #if __FreeBSD_version < 800054
> #if defined (__GNUC__)
> #if #cpu(i386) || defined __i386 || defined i386 || defined __i386__ || #cpu(x86_64) || defined __x86_64__
> #define mb() __asm__ __volatile__ ("mfence;": : :"memory")
> #define wmb() __asm__ __volatile__ ("sfence;": : :"memory")
> #define rmb() __asm__ __volatile__ ("lfence;": : :"memory")
> #elif #cpu(sparc64) || defined sparc64 || defined __sparcv9
> #define mb() __asm__ __volatile__ ("membar #MemIssue": : :"memory")
> #define wmb() mb()
> #define rmb() mb()
> #elif #cpu(sparc) || defined sparc || defined __sparc__
> #define mb() __asm__ __volatile__ ("stbar;": : :"memory")
> #define wmb() mb()
> #define rmb() mb()
> #else
> #define wmb() mb()
> #define rmb() mb()
> #define mb() /* XXX just to make this compile */
> #endif
> #else
> #error "unknown compiler"
> #endif
> #endif
>