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Date:      Sun, 12 Jul 2015 15:23:21 -0300
From:      Mario Lobo <lobo@bsd.com.br>
To:        "Herbert J. Skuhra" <herbert@oslo.ath.cx>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: Gigabyte 970A-UD3P and hwpstate problem
Message-ID:  <20150712152321.51b8407c@Papi>
In-Reply-To: <20150711135006.GB41680@oslo.ath.cx>
References:  <20150710213752.473cb831@Papi> <20150711135006.GB41680@oslo.ath.cx>

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On Sat, 11 Jul 2015 15:50:06 +0200
"Herbert J. Skuhra" <herbert@oslo.ath.cx> wrote:

> On Fri, Jul 10, 2015 at 09:37:52PM -0300, Mario Lobo wrote:
> > Hi;
> >=20
> > I just installed a Gigabyte 970A-UD3P mobo and updated BIOS to the
> > latest version but the problem also showed with the previous
> > version.
> >=20
> > Here is my amd64 10-STABLE setup:
> >=20
> > FreeBSD 10.2-PRERELEASE #0 r285207M: Tue Jul  7 00:11:01 BRT 2015
> > amd64
> >=20
> > CPU: AMD FX-8320E Eight-Core Processor (3214.93-MHz K8-class CPU)
> >   Origin=3D"AuthenticAMD"  Id=3D0x600f20  Family=3D0x15  Model=3D0x2
> > Stepping=3D0
> > Features=3D0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,=
PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
> > Features2=3D0x3e98320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,=
POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C>
> > AMD Features=3D0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM> AMD
> > Features2=3D0x1ebbfff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,O=
SVW,IBS,XOP,SKINIT,WDT,LWP,FMA4,TCE,NodeId,TBM,Topology,PCXC,PNXC>
> >   Structured Extended Features=3D0x8<BMI1>
> >   SVM: NP,NRIP,VClean,AFlush,DAssist,NAsids=3D65536
> >   TSC: P-state invariant, performance statistics
> > real memory  =3D 17179869184 (16384 MB)
> > [snip]
> > ACPI BIOS Warning (bug): Optional FADT field Pm2ControlBlock has
> > zero address or length: 0x0000000000000000/0x1 (20150515/tbfadt-673)
> > [snip]
> > hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on
> > acpi0
> >=20
> > The problem:
> >=20
> > powerd: no cpufreq(4) support -- aborting: No such file or directory
> > /etc/rc: WARNING: failed to start powerd
>=20
> Could this be your problem:
>=20
> r276986 | nwhitehorn | 2015-01-11 18:10:07 +0100 (s=F8n, 11 jan 2015) |
> 8 lines
>=20
> MFC r265329:
> Disable ACPI and P4TCC throttling by default, following discussion on
> freebsd-current. These CPU speed control techniques are usually
> unhelpful at best. For now, continue building the relevant code into
> GENERIC so that it can trivially be re-enabled at runtime if anyone
> wants it.
>=20
> Relnotes:       yes
>=20
> % svnlite diff -c 276986 sys/amd64/conf/GENERIC.hints=20
> Index: sys/amd64/conf/GENERIC.hints
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- sys/amd64/conf/GENERIC.hints        (revision 276985)
> +++ sys/amd64/conf/GENERIC.hints        (revision 276986)
> @@ -31,3 +31,5 @@
>  hint.attimer.0.port=3D"0x40"
>  hint.attimer.0.irq=3D"0"
>  hint.wbwd.0.at=3D"isa"
> +hint.acpi_throttle.0.disabled=3D"1"
> +hint.p4tcc.0.disabled=3D"1"
>=20
> Does it work if your unset or remove those lines
> from /boot/device.hints?
>=20

YEEESSS ! Thanks for pointing that out!

I have these commented on my loader.conf but I didn't know they were
active somewhere else.

As far as cpufreq/powerd goes, it's working now and frequencies are
being throttled but still no cool'n'quiet/hwpstate0 showing on dmesg.
acpi_throttle attaches to cpu0 but not to the others.

acpi_throttle0: <ACPI CPU Throttling> on cpu0
acpi_throttle1: <ACPI CPU Throttling> on cpu1
acpi_throttle1: failed to attach P_CNT
device_attach: acpi_throttle1 attach returned 6
acpi_throttle2: <ACPI CPU Throttling> on cpu2
acpi_throttle2: failed to attach P_CNT
device_attach: acpi_throttle2 attach returned 6
acpi_throttle3: <ACPI CPU Throttling> on cpu3
acpi_throttle3: failed to attach P_CNT
device_attach: acpi_throttle3 attach returned 6
acpi_throttle4: <ACPI CPU Throttling> on cpu4
acpi_throttle4: failed to attach P_CNT
device_attach: acpi_throttle4 attach returned 6
acpi_throttle5: <ACPI CPU Throttling> on cpu5
acpi_throttle5: failed to attach P_CNT
device_attach: acpi_throttle5 attach returned 6
acpi_throttle6: <ACPI CPU Throttling> on cpu6
acpi_throttle6: failed to attach P_CNT
device_attach: acpi_throttle6 attach returned 6
acpi_throttle7: <ACPI CPU Throttling> on cpu7
acpi_throttle7: failed to attach P_CNT
device_attach: acpi_throttle7 attach returned 6

sysctl -a | grep freq

dev.cpufreq.0.%parent: cpu0
dev.cpufreq.0.%pnpinfo:=20
dev.cpufreq.0.%location:=20
dev.cpufreq.0.%driver: cpufreq
dev.cpufreq.0.%desc:=20
dev.cpufreq.%parent:=20
dev.acpi_throttle.0.freq_settings: 10000/-1 8750/-1 7500/-1 6250/-1
5000/-1 3750/-1 2500/-1 1250/-1 dev.cpu.0.freq_levels: 3214/-1 2812/-1
2410/-1 2008/-1 1607/-1 1205/-1 803/-1=20
dev.cpu.0.freq: 803


Thanks again!
--=20
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since 2.2.8 [not Pro-Audio.... YET!!] (99% winblows FREE)
=20
"UNIX was not designed to stop you from doing stupid things,=20
because that would also stop you from doing clever things."



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