Date: Mon, 14 Mar 2011 23:30:14 +0000 (UTC) From: Jung-uk Kim <jkim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r219653 - in head/sys: arm/include i386/include Message-ID: <201103142330.p2ENUEL8014903@svn.freebsd.org>
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Author: jkim Date: Mon Mar 14 23:30:14 2011 New Revision: 219653 URL: http://svn.freebsd.org/changeset/base/219653 Log: Make get_cyclecount(9) little bit more useful where binuptime(9) is used. Modified: head/sys/arm/include/cpu.h head/sys/i386/include/cpu.h Modified: head/sys/arm/include/cpu.h ============================================================================== --- head/sys/arm/include/cpu.h Mon Mar 14 23:19:04 2011 (r219652) +++ head/sys/arm/include/cpu.h Mon Mar 14 23:30:14 2011 (r219653) @@ -16,7 +16,7 @@ get_cyclecount(void) struct bintime bt; binuptime(&bt); - return (bt.frac ^ bt.sec); + return ((uint64_t)bt.sec << 56 | bt.frac >> 8); } #endif Modified: head/sys/i386/include/cpu.h ============================================================================== --- head/sys/i386/include/cpu.h Mon Mar 14 23:19:04 2011 (r219652) +++ head/sys/i386/include/cpu.h Mon Mar 14 23:30:14 2011 (r219653) @@ -67,7 +67,7 @@ void swi_vm(void *); * Return contents of in-cpu fast counter as a sort of "bogo-time" * for random-harvesting purposes. */ -static __inline u_int64_t +static __inline uint64_t get_cyclecount(void) { #if defined(I486_CPU) || defined(KLD_MODULE) @@ -75,7 +75,7 @@ get_cyclecount(void) if (!tsc_present) { binuptime(&bt); - return (bt.frac ^ bt.sec); + return ((uint64_t)bt.sec << 56 | bt.frac >> 8); } #endif return (rdtsc());
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