Date: Wed, 23 Aug 2006 21:32:05 GMT From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 104859 for review Message-ID: <200608232132.k7NLW5cH019744@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=104859 Change 104859 by gonzo@gonzo_hideout on 2006/08/23 21:31:24 o Introduce barrier functions to userland. Affected files ... .. //depot/projects/mips2/src/sys/mips/include/cpufunc.h#15 edit Differences ... ==== //depot/projects/mips2/src/sys/mips/include/cpufunc.h#15 (text+ko) ==== @@ -33,21 +33,6 @@ #include <sys/types.h> #include <machine/cpuregs.h> -static __inline void -mips_barrier(void) -{ - __asm __volatile (".set noreorder\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - ".set reorder\n\t" - : : : "memory"); -} static __inline void mips_tlbp(void) @@ -93,16 +78,6 @@ mips_barrier(); } -static __inline void -mips_wbflush(void) -{ - __asm __volatile ("sync" : : : "memory"); - mips_barrier(); -#if 0 - __asm __volatile("mtc0 %0, $12\n" /* MIPS_COP_0_STATUS */ - : : "r" (flag)); -#endif -} #if 0 /* XXX mips64 */ @@ -217,7 +192,40 @@ __asm __volatile ("break"); } +#endif /* _KERNEL */ + +/* + * These functions are required by user-land atomi ops + */ + +static __inline void +mips_barrier(void) +{ + __asm __volatile (".set noreorder\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + "nop\n\t" + ".set reorder\n\t" + : : : "memory"); +} + static __inline void +mips_wbflush(void) +{ + __asm __volatile ("sync" : : : "memory"); + mips_barrier(); +#if 0 + __asm __volatile("mtc0 %0, $12\n" /* MIPS_COP_0_STATUS */ + : : "r" (flag)); +#endif +} + +static __inline void mips_read_membar(void) { /* Nil */ @@ -229,6 +237,4 @@ mips_wbflush(); } -#endif /* _KERNEL */ - #endif /* !_MACHINE_CPUFUNC_H_ */
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