Date: Thu, 13 Aug 2015 14:53:30 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r286726 - head/sys/arm/arm Message-ID: <201508131453.t7DErU8a075060@repo.freebsd.org>
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Author: marcel Date: Thu Aug 13 14:53:29 2015 New Revision: 286726 URL: https://svnweb.freebsd.org/changeset/base/286726 Log: Instead of having separate do_sync functions for ARM_ARCH 6 vs. ARM_ARCH >= 7, use the dmb() macro defined in machine/atomic.h Submitted by: Steve Kiernan <stevek@juniper.net> Reviewed by: imp@ Differential Revision: https://reviews.freebsd.org/D3355 Modified: head/sys/arm/arm/stdatomic.c Modified: head/sys/arm/arm/stdatomic.c ============================================================================== --- head/sys/arm/arm/stdatomic.c Thu Aug 13 14:50:11 2015 (r286725) +++ head/sys/arm/arm/stdatomic.c Thu Aug 13 14:53:29 2015 (r286726) @@ -32,6 +32,7 @@ __FBSDID("$FreeBSD$"); #include <sys/types.h> #include <machine/acle-compat.h> +#include <machine/atomic.h> #include <machine/cpufunc.h> #include <machine/sysarch.h> @@ -67,19 +68,12 @@ do_sync(void) __asm volatile ("" : : : "memory"); } -#elif __ARM_ARCH >= 7 -static inline void -do_sync(void) -{ - - __asm volatile ("dmb" : : : "memory"); -} #elif __ARM_ARCH >= 6 static inline void do_sync(void) { - __asm volatile ("mcr p15, 0, %0, c7, c10, 5" : : "r" (0) : "memory"); + dmb(); } #endif
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