Date: Tue, 22 May 2012 11:10:14 -0700 From: Sean Bruno <seanbru@yahoo-inc.com> To: Jung-uk Kim <jkim@FreeBSD.org> Cc: "sbruno@FreeBSD.org" <sbruno@FreeBSD.org>, freebsd-stable <freebsd-stable@FreeBSD.org> Subject: Re: [stable 9] broken hwpstate calls Message-ID: <1337710214.2916.8.camel@powernoodle-l7.corp.yahoo.com> In-Reply-To: <4FB6765A.2050307@FreeBSD.org> References: <1337319129.2915.4.camel@powernoodle-l7> <4FB6765A.2050307@FreeBSD.org>
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On Fri, 2012-05-18 at 09:18 -0700, Jung-uk Kim wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 2012-05-18 01:32:09 -0400, Sean Bruno wrote: > > Looks like my AMD box isn't quite working correctly with regards > > to P-states. I noted this repeating periodically: hwpstate0: set > > freq failed, err 6 > > > > > > I noted these errors when setting the hwpstate verbose systctl on: > > > > May 17 22:28:32 Alice kernel: hwpstate0: set freq failed, err 6 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu0 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu0 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu1 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu1 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu2 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu2 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu3 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu3 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu4 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu4 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu5 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu5 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu6 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu6 May > > 17 22:28:32 Alice kernel: hwpstate0: setting P1-state on cpu7 May > > 17 22:28:32 Alice kernel: hwpstate0: result P1-state on cpu7 > > > > > > Sean > > > > ref this machine: http://forums.pcbsd.org/showthread.php?t=16733 > > I briefly looked at the dmesg. You have a Family 15h processor > (Bulldozer with Turbo Core) and I believe it isn't supported (yet). > It won't be too hard to implement, though. > > Jung-uk Kim I'm assuming, something like this to start? http://people.freebsd.org/~sbruno/bulldozer.txt I'm reading the AMD spec, and that *seems* to be right? But, chances are I have no idea what I'm doing. :-) Sean
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