Date: Sat, 3 Mar 2012 14:02:34 +0000 (UTC) From: Olivier Houchard <cognet@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r232462 - projects/armv6/sys/arm/include Message-ID: <201203031402.q23E2YYo085082@svn.freebsd.org>
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Author: cognet Date: Sat Mar 3 14:02:34 2012 New Revision: 232462 URL: http://svn.freebsd.org/changeset/base/232462 Log: Grrr, we can't use dmb for armv6. Of course, our toolchain is too ancient to support armv7, so we have to use this for armv7 userland, as well. Modified: projects/armv6/sys/arm/include/atomic.h Modified: projects/armv6/sys/arm/include/atomic.h ============================================================================== --- projects/armv6/sys/arm/include/atomic.h Sat Mar 3 13:51:51 2012 (r232461) +++ projects/armv6/sys/arm/include/atomic.h Sat Mar 3 14:02:34 2012 (r232462) @@ -67,7 +67,11 @@ static __inline void __do_dmb(void) { +#if ARM_ARCH_7A __asm __volatile("dmb" : : : "memory"); +#else + __asm __volatile("mcr p15, 0, r0, c7, c10, 5" : : : "memory"); +#endif } #define ATOMIC_ACQ_REL(NAME, WIDTH) \
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