Date: Fri, 11 Jul 2008 23:05:36 +0300 From: Danny Braniss <danny@cs.huji.ac.il> To: Nate Lawson <nate@root.org> Cc: freebsd-hackers@FreeBSD.org, Jeremy Chadwick <koitsu@FreeBSD.org> Subject: Re: AuthenticAMD, cpufreq and SunFire X2200 Message-ID: <E1KHOs4-000FqI-Q5@cs1.cs.huji.ac.il> In-Reply-To: <4877B797.9020209@root.org> References: <E1KHNXP-000F4k-Kf@cs1.cs.huji.ac.il> <20080711193815.GA63636@eos.sc1.parodius.com> <4877B797.9020209@root.org>
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> Jeremy Chadwick wrote:
> > On Fri, Jul 11, 2008 at 09:40:11PM +0300, Danny Braniss wrote:
> >>> On Fri, Jul 11, 2008 at 03:57:00PM +0300, Danny Braniss wrote:
> >>>> Hi,
> >>>> I'm trying to find out why there is no frequency info.
> >>>> ie:
> >>>> sunfire> sysctl dev.cpu.0
> >>>> dev.cpu.0.%desc: ACPI CPU
> >>>> dev.cpu.0.%driver: cpu
> >>>> dev.cpu.0.%location: handle=\_PR_.P001
> >>>> dev.cpu.0.%pnpinfo: _HID=none _UID=0
> >>>> dev.cpu.0.%parent: acpi0
> >>>> dev.cpu.0.cx_supported: C1/0
> >>>> dev.cpu.0.cx_lowest: C1
> >>>> dev.cpu.0.cx_usage: 100.00%
> >>>>
> >>>> so any help/insight is most welcome.
> >>>>
> >>>> BTW, its 7.0-stable
> >>> Is the cpufreq device in your kernel config? Do the SunFire X2200's
> >>> provide any sort of frequency data in their ACPI tables? Are there BIOS
> >>> settings which are relevant to this board enabling Cool'n'Quiet or
> >>> anything else of that nature (thus inducing the use of powernow(4))?
> >>>
> >> device is configured:
> >> config -x /boot/kernel/kernel | grep -a cpufreq
> >> device cpufreq
> >> the BIOS has powernow enabled (or something similar).
> >> the kernel prints:
> >> ...
> >> powernow0: <PowerNow! K8> on cpu0
> >> powernow0: STATUS: 0x3106120806120212
> >> powernow0: STATUS: maxfid: 0x12
> >> powernow0: STATUS: maxvid: 0x06
> >> ...
> >> the same is repeated for cpu 1,2,3,4,5,6 & 7 - yes it's a dual quad.
> >>
> >> which seem to indicate that it didn't like the ACPI data it got - this by
> >> comparing with other amd's that do report correctly.
> >>
> >> as to the question '...any sort of frequency data in their ACPI tables'
> >> I tried to 'read' the ACPI data, but didn't understand the language :-(
> >
> > First and foremost, please don't remove the mailing list from the CC
> > line; others need to know the technical details.
> >
sorry, it's the old fashioned MUA.
> > I don't have an answer for you, however. Nate Lawson might have some
> > ideas as to what's going on. A verbose boot may be needed. I've
> > CC'd Nate here.
>
> Looks like someone should check the AMD datasheets and/or acpidump. I'm
> currently not an active committer though.
no AMD datasheets, but here goes acpidump:
/*
RSD PTR: OEM=ACPIAM, ACPI_Rev=2.0x (2)
XSDT=0xdfff0100, length=36, cksum=253
*/
/*
XSDT: Length=76, Revision=1, Checksum=132,
OEMID=A M I, OEM Table ID=OEMXSDT, OEM Revision=0x7000704,
Creator ID=MSFT, Creator Revision=0x97
Entries={ 0xdfff0290, 0xdfff0390, 0xdfff0410, 0xdfffe040, 0xdfff4f90 }
*/
/*
FACP: Length=244, Revision=3, Checksum=95,
OEMID=A M I, OEM Table ID=OEMFACP, OEM Revision=0x7000704,
Creator ID=MSFT, Creator Revision=0x97
FACS=0xdfffe000, DSDT=0xdfff04a0
INT_MODEL=APIC
Preferred_PM_Profile=Enterprise Server (4)
SCI_INT=9
SMI_CMD=0x242e, ACPI_ENABLE=0xe1, ACPI_DISABLE=0x1e, S4BIOS_REQ=0x0
PSTATE_CNT=0xe2
PM1a_EVT_BLK=0x2000-0x2003
PM1a_CNT_BLK=0x2004-0x2005
PM_TMR_BLK=0x2008-0x200b
GPE0_BLK=0x2020-0x2027
GPE1_BLK=0x24a0-0x24af, GPE1_BASE=32
CST_CNT=0xe3
P_LVL2_LAT=101 us, P_LVL3_LAT=1001 us
FLUSH_SIZE=1024, FLUSH_STRIDE=16
DUTY_OFFSET=1, DUTY_WIDTH=0
DAY_ALRM=125, MON_ALRM=126, CENTURY=50
IAPC_BOOT_ARCH={LEGACY_DEV,8042}
Flags={WBINVD,PROC_C1,SLP_BUTTON,RTC_S4,HEADLESS}
X_FACS=0xdfffe000, X_DSDT=0xdfff04a0
X_PM1a_EVT_BLK=0x2000:0[32] (IO)
X_PM1a_CNT_BLK=0x2004:0[16] (IO)
X_PM_TMR_BLK=0x2008:0[32] (IO)
X_GPE0_BLK=0x2020:0[64] (IO)
X_GPE1_BLK=0x24a0:0[128] (IO)
*/
/*
FACS: Length=64, HwSig=0x00000000, Firm_Wake_Vec=0x00000000
Global_Lock=
Flags=
Version=1
*/
/*
DSDT: Length=19183, Revision=1, Checksum=118,
OEMID=S39_3, OEM Table ID=S39_3B17, OEM Revision=0xb17,
Creator ID=INTL, Creator Revision=0x20051117
*/
/*
APIC: Length=118, Revision=1, Checksum=203,
OEMID=A M I, OEM Table ID=OEMAPIC, OEM Revision=0x7000704,
Creator ID=MSFT, Creator Revision=0x97
Local APIC ADDR=0xfee00000
Flags={PC-AT}
Type=Local APIC
ACPI CPU=1
Flags={ENABLED}
APIC ID=0
Type=Local APIC
ACPI CPU=2
Flags={ENABLED}
APIC ID=1
Type=Local APIC
ACPI CPU=3
Flags={ENABLED}
APIC ID=2
Type=Local APIC
ACPI CPU=4
Flags={ENABLED}
APIC ID=3
Type=IO APIC
APIC ID=4
INT BASE=0
ADDR=0x00000000fec00000
Type=INT Override
BUS=0
IRQ=9
INTR=9
Flags={Polarity=active-hi, Trigger=level}
Type=INT Override
BUS=0
IRQ=14
INTR=14
Flags={Polarity=active-hi, Trigger=edge}
Type=INT Override
BUS=0
IRQ=15
INTR=15
Flags={Polarity=active-hi, Trigger=edge}
*/
/*
SPCR: Length=80, Revision=1, Checksum=24,
OEMID=A M I, OEM Table ID=OEMSPCR, OEM Revision=0x7000704,
Creator ID=MSFT, Creator Revision=0x97
*/
/*
SRAT: Length=272, Revision=1, Checksum=15,
OEMID=AMD, OEM Table ID=HAMMER, OEM Revision=0x1,
Creator ID=AMD, Creator Revision=0x1
*/
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