Date: Thu, 5 Dec 2013 18:00:01 GMT From: dfilter@FreeBSD.ORG (dfilter service) To: freebsd-bugs@FreeBSD.org Subject: Re: kern/167018: commit references a PR Message-ID: <201312051800.rB5I01e4088907@freefall.freebsd.org>
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The following reply was made to PR kern/167018; it has been noted by GNATS. From: dfilter@FreeBSD.ORG (dfilter service) To: bug-followup@FreeBSD.org Cc: Subject: Re: kern/167018: commit references a PR Date: Thu, 5 Dec 2013 17:57:58 +0000 (UTC) Author: sbruno Date: Thu Dec 5 17:57:51 2013 New Revision: 258994 URL: http://svnweb.freebsd.org/changeset/base/258994 Log: MFC r257769 to stable/10 Fix powerd/states on AMD cpus. Resolves issues with system reporting: hwpstate0: set freq failed, err 6 Tested on FX-8150 and others. PR: kern/167018 Submitted by: avg@ Approved by: re (gjb) Modified: stable/10/sys/x86/cpufreq/hwpstate.c Directory Properties: stable/10/sys/ (props changed) Modified: stable/10/sys/x86/cpufreq/hwpstate.c ============================================================================== --- stable/10/sys/x86/cpufreq/hwpstate.c Thu Dec 5 17:50:18 2013 (r258993) +++ stable/10/sys/x86/cpufreq/hwpstate.c Thu Dec 5 17:57:51 2013 (r258994) @@ -184,16 +184,21 @@ hwpstate_goto_pstate(device_t dev, int p id, PCPU_GET(cpuid)); /* Go To Px-state */ wrmsr(MSR_AMD_10H_11H_CONTROL, id); + } + CPU_FOREACH(i) { + /* Bind to each cpu. */ + thread_lock(curthread); + sched_bind(curthread, i); + thread_unlock(curthread); /* wait loop (100*100 usec is enough ?) */ for(j = 0; j < 100; j++){ + /* get the result. not assure msr=id */ msr = rdmsr(MSR_AMD_10H_11H_STATUS); if(msr == id){ break; } DELAY(100); } - /* get the result. not assure msr=id */ - msr = rdmsr(MSR_AMD_10H_11H_STATUS); HWPSTATE_DEBUG(dev, "result P%d-state on cpu%d\n", (int)msr, PCPU_GET(cpuid)); if (msr != id) { _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"help
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