Date: Mon, 16 Jun 2014 14:07:15 -0500 From: Eric Neblock <cen5848@louisiana.edu> To: Ian Smith <smithi@nimnet.asn.au>, hiren panchasara <hiren.panchasara@gmail.com> Cc: "freebsd-acpi@freebsd.org" <freebsd-acpi@freebsd.org> Subject: Re: Missing: hw.acpi.thermal.tz%d._HOT Message-ID: <539F4063.3070107@louisiana.edu> In-Reply-To: <20140614013631.J10629@sola.nimnet.asn.au> References: <1402412054.2426.13.camel@canpc36.cacs.louisiana.edu> <20140611011810.V10629@sola.nimnet.asn.au> <1402414819.17836.2.camel@canpc36.cacs.louisiana.edu> <CALCpEUEFmg4twoiDC1czEAXOanmLbR9DarvRcg9h8o=Xc3dwjg@mail.gmail.com> <20140614013631.J10629@sola.nimnet.asn.au>
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On 06/13/2014 11:22 AM, Ian Smith wrote: > On Thu, 12 Jun 2014 14:28:33 -0700, hiren panchasara wrote: > > On Tue, Jun 10, 2014 at 8:40 AM, Eric Neblock <cen5848@louisiana.edu> wrote: > > > On Wed, 2014-06-11 at 01:33 +1000, Ian Smith wrote: > > >> On Tue, 10 Jun 2014 09:54:14 -0500, Eric Neblock wrote: > > >> > Hello all, > > >> > I'm trying to figure out what is the _HOT temperature on my particular > > >> > processor. I'm running FreeBSD 10 GENERIC on a Sunfire X2200. > > >> > > > >> > The processor is an Dual Core AMD Opteron 2218. > > >> > > > >> > In the GENERIC kernel, acpi is built in; so, kldload acpi fails. I've > > >> > also loaded the amdtemp module at boot time to figure out what the > > >> > current temp of the processor is. > > >> > > > >> > With all of that, when performing `sysctl -a` I never seem to be able to > > >> > pull up the _HOT value. > > >> > > > >> > Are there any suggestions on how to be able to view it? > > >> > > >> Many thermal zones seen, including some CPUs, don't specify any _HOT > > >> value, just _PSV and _CRT, which should trigger passive cooling (eg > > >> clock slowing or throttling) and emergency shutdown, respectively. > > >> > > >> What says 'sysctl hw.acpi.thermal' ? > > >> > > >> cheers, Ian > > > > > > The result is as follows: > > > > > > sysctl: Unknown oid 'hw.acpi.thermal' : No such file or directory > > > > Similar thing here at home desktop running -CURRENT: > > > > CPU: AMD FX(tm)-8350 Eight-Core Processor (4000.24-MHz K8-class CPU) > > Origin="AuthenticAMD" Id=0x600f20 Family=0x15 Model=0x2 Stepping=0 > > > > acpi0: <7596MS A7596100> on motherboard > > > > Other related bits: > > > > # sysctl hw.acpi > > hw.acpi.supported_sleep_state: S3 S4 S5 > > hw.acpi.power_button_state: S5 > > hw.acpi.sleep_button_state: S3 > > hw.acpi.lid_switch_state: NONE > > hw.acpi.standby_state: NONE > > hw.acpi.suspend_state: S3 > > hw.acpi.sleep_delay: 1 > > hw.acpi.s4bios: 0 > > hw.acpi.verbose: 0 > > hw.acpi.disable_on_reboot: 0 > > hw.acpi.handle_reboot: 0 > > hw.acpi.reset_video: 0 > > hw.acpi.cpu.cx_lowest: C8 > > # > > > > # sysctl dev.amdtemp > > dev.amdtemp.0.%desc: AMD CPU On-Die Thermal Sensors > > dev.amdtemp.0.%driver: amdtemp > > dev.amdtemp.0.%parent: hostb4 > > dev.amdtemp.0.sensor_offset: 0 > > dev.amdtemp.0.core0.sensor0: 15.3C > > > > # sysctl -a dev.cpu | grep temp > > dev.cpu.0.temperature: 15.2C > > dev.cpu.1.temperature: 15.2C > > dev.cpu.2.temperature: 15.2C > > dev.cpu.3.temperature: 15.2C > > dev.cpu.4.temperature: 15.2C > > dev.cpu.5.temperature: 15.2C > > dev.cpu.6.temperature: 15.2C > > dev.cpu.7.temperature: 15.2C > > > > I am not sure how this ^ relates to what acpi reports under thermal. > > Well first, unless you've just turned it on, it's idling and lives in a > refrigerator or coldroom, those temperatures are at best a third of the > minimum I'd expect to see reported .. and they wouldn't all be the same. > > And neither of these are reporting hw.acpi.thermal .. is it because the > BIOS / ACPI doesn't present thermal zone information? Or there aren't > suitable drivers to interpret it? I've no idea, but does seem curious. > > Any output from? > # acpidump -dt | egrep -i 'TZ|thermal' I also got the same results as Hiren. I'll attach my results as well. Eric > If so, you might want to put your full ASL up somewhere. Note: I'm not > at all qualified to interpret it, just that I'd expect there to be some; > eg on a Lenovo X200 (Core2 Duo): > root@x200:~ # acpidump -dt | egrep -i 'TZ|thermal' > Notify (\_TZ.THM0, 0x80) > Notify (\_TZ.THM1, 0x80) > Notify (\_TZ.THM0, 0x80) > Notify (\_TZ.THM1, 0x80) > "AdaptiveThermalManagementAC" > "AdaptiveThermalManagementBattery" > Notify (\_TZ.THM0, 0x80) > Notify (\_TZ.THM1, 0x80) > Notify (\_TZ.THM1, 0x80) > Notify (\_TZ.THM0, 0x81) > Scope (\_TZ) > ThermalZone (THM0) > ThermalZone (THM1) > Return (\_TZ.THM0._TMP ()) > Notify (\_TZ.THM0, 0x80) > > cheers, Ian >
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