Re: Phenom II 975 BE shows 0 celsius

2011-08-22 Thread Jung-uk Kim
On Sunday 21 August 2011 06:13 am, Andriy Gapon wrote:
 on 02/08/2011 00:06 Jung-uk Kim said the following:
  On Monday 01 August 2011 04:10 pm, Andriy Gapon wrote:
  on 01/08/2011 22:48 Jung-uk Kim said the following:
  I have mixed feeling about this because I own a system with
  such CPU/motherboard combo, too.  I also believe it works well
  but errata is errata.  If vendor says we shouldn't use it, then
  we shouldn't. In fact, I am just following Linux as an example
  here but I have no problem with turning this into a warning
  message, either.
 
  Let's cut a deal :-)
  If we start using amdtemp for fan control, emergency system
  shutdown or similar, then we follow the strict path.  Until
  then, while we use amdtemp to amuse users with numbers, let's
  just print a warning :-)
 
  Okay, here is the new patch (not tested on the affected system
  yet):
 
  http://people.freebsd.org/~jkim/amdtemp2.diff

 Tested the patch - looks good!
 One comment though: it seems that sensor_offset defaults to zero
 now. Would it be a good idea to default it to what it previously
 used to be? On my system the hardware reports the offset correctly
 (as verified by using independent hardware monitoring logic in
 Super I/O), so defaulting it to zero is kind of a regression.

If we want to preserve the previous default, we have to reintroduce 
DiodeOffset or to define more quirks. :-/

Jung-uk Kim
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Re: Phenom II 975 BE shows 0 celsius

2011-08-21 Thread Andriy Gapon
on 02/08/2011 00:06 Jung-uk Kim said the following:
 On Monday 01 August 2011 04:10 pm, Andriy Gapon wrote:
 on 01/08/2011 22:48 Jung-uk Kim said the following:
 I have mixed feeling about this because I own a system with such
 CPU/motherboard combo, too.  I also believe it works well but
 errata is errata.  If vendor says we shouldn't use it, then we
 shouldn't. In fact, I am just following Linux as an example here
 but I have no problem with turning this into a warning message,
 either.

 Let's cut a deal :-)
 If we start using amdtemp for fan control, emergency system
 shutdown or similar, then we follow the strict path.  Until then,
 while we use amdtemp to amuse users with numbers, let's just print
 a warning :-)
 
 Okay, here is the new patch (not tested on the affected system yet):
 
 http://people.freebsd.org/~jkim/amdtemp2.diff

Tested the patch - looks good!
One comment though: it seems that sensor_offset defaults to zero now.
Would it be a good idea to default it to what it previously used to be?
On my system the hardware reports the offset correctly (as verified by using
independent hardware monitoring logic in Super I/O), so defaulting it to zero is
kind of a regression.

-- 
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Re: Phenom II 975 BE shows 0 celsius

2011-08-02 Thread Andriy Gapon
on 02/08/2011 00:08 Jung-uk Kim said the following:
 On Monday 01 August 2011 04:07 pm, Andriy Gapon wrote:
 on 01/08/2011 22:48 Jung-uk Kim said the following:
 amdtemp(4) attaches under PCI bus but its sibling on function 2
 isn't easy to address, i.e., hostbN.

 pci_find_bsf() should help with that.
 
 I thought about that but it seemed like an overkill because this 
 driver is strictly MD anyway. :-)

It's just that pci_cfgregread() has very low level feel to it, nothing else...

-- 
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Andriy Gapon
on 01/08/2011 03:28 Mario Lobo said the following:
 Hi to all
 
 In my desktop machine, I had an AM2+ ASROCK mobo with Phenom II 955 BE that 
 showed each core temperature perfectly under FBSD 8-STABLE, via 
 dev.cpu.x.temp. amdtemp.ko loaded.
 
 Unfortunately this Mobo died and only found AM3 boards for which my phenom 
 955 
 doesn't fit. So I got an ASUS M4A88T-V EVO with a Phenom II 975 BE. 
 
 Funny thing. An AM3 phenom II fits on an AM2 board but an AM3 board doesn't 
 accept an AM2/AM2+ phenom II :(.
 
 Anyway, now, under the very same system, it shows 0 degrees on dev.cpu.x.temp 
 for all cores.

Sorry, I've got lost in all the config changes.  So what system do you have now?
Can please also provide CPU-related information from dmesg?

 I've been looking through k8temp and amdtemp src code. I am definitely not 
 sure of this but I believe something might have happened to those:
 
 From k8temp.h
 
 K10_THERM_REG  0xa4 
 K10_THERMTRIP_REG  0xe4
 K10_CURTMP(val)(((val)  21)  0xfff)
 K10_THERMTRIP(val) ((val  1)  1)
 
 From amdtemp.c
 
 /*
  * Register control (K8 family)
  */
 #define   AMDTEMP_REG0F   0xe4
 #define   AMDTEMP_REG_SELSENSOR   0x40
 #define   AMDTEMP_REG_SELCORE 0x04
 
 /*
  * Register control (K10  K11) family
  */
 #define   AMDTEMP_REG 0xa4
 
 
 Output of k8temp -dn:
 
 CPUID: Vendor: AuthenticAMD, 0x100f43: Model=04 Family=f+1 Stepping=3
 Advanced Power Management=0x1f9
Temperature sensor: Yes
  Frequency ID control: No
Voltage ID control: No
 THERMTRIP support: Yes
HW Thermal control: Yes
SW Thermal control: Yes
100MHz multipliers: Yes
HW P-State control: Yes
 TSC Invariant: Yes
 Temp=c0fef
 ThermTrip=1fc00c30
 0
 
 I keep a small win7 partition to test little things like this and see if the 
 same thing happens there, and it doesn't, so I concluded that the sensors are 
 there and are working.
 
 One thing is worth noting though. I have used a free gadget that shows 
 activity/temp for each core. It worked fine with the previous MB/CPU.That 
 ALSO 
 stopped working with this new MB. Like FBSD, it shows 0 degrees for any core 
 too, although it correctly displays each core load.

Most likely that gadget just re-uses OS-provided information.

 The only windows tool that correctly shows the temperature are the ASUS tools 
 that came with the mobo.
 
 Other than that, everything is working fine! The only thing I had to fix was 
 the fstab ada location.
 
 I know this is not a big thing but I got accustomed to keeping an eye on 
 those 
 temperatures.
 
 I have googled for a few days now searching for Thermal register address or 
 offsets for the Phenom II 975 BE, or anything related to this problem and 
 found nothing. Every search on AMD site was fruitless. I could not find a 
 single bit of tech info on this processor there, or any other tech info for 
 that matter.

http://support.amd.com/us/Processor_TechDocs/31116.pdf
 Would any one have any pointers/clues/suggestions on this?

I would try to add some printfs (or used dtrace - whichever is easier for you) 
to
see what's going on.  Or you can even use pciconf to directly sneak a peek at
what's reported by the hardware, e.g.:
# pciconf -r pci0:0:24:3 0xa4
1c881880

You can read the BKDG to see how to interpret the value - search for F3xA4.  See
F3xE4 for offset calculation.

Hopefully you should be able to see if hardware reports sane value and how the
amdtemp ends up reporting 0°C.

-- 
Andriy Gapon
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Jung-uk Kim
On Monday 01 August 2011 10:14 am, Andriy Gapon wrote:
 on 01/08/2011 03:28 Mario Lobo said the following:
  Hi to all
 
  In my desktop machine, I had an AM2+ ASROCK mobo with Phenom II
  955 BE that showed each core temperature perfectly under FBSD
  8-STABLE, via dev.cpu.x.temp. amdtemp.ko loaded.
 
  Unfortunately this Mobo died and only found AM3 boards for which
  my phenom 955 doesn't fit. So I got an ASUS M4A88T-V EVO with a
  Phenom II 975 BE.
 
  Funny thing. An AM3 phenom II fits on an AM2 board but an AM3
  board doesn't accept an AM2/AM2+ phenom II :(.
 
  Anyway, now, under the very same system, it shows 0 degrees on
  dev.cpu.x.temp for all cores.

 Sorry, I've got lost in all the config changes.  So what system do
 you have now? Can please also provide CPU-related information from
 dmesg?

  I've been looking through k8temp and amdtemp src code. I am
  definitely not sure of this but I believe something might have
  happened to those:
 
  From k8temp.h
 
  K10_THERM_REG  0xa4
  K10_THERMTRIP_REG  0xe4
  K10_CURTMP(val)(((val)  21)  0xfff)
  K10_THERMTRIP(val) ((val  1)  1)
 
  From amdtemp.c
 
  /*
   * Register control (K8 family)
   */
  #define AMDTEMP_REG0F   0xe4
  #define AMDTEMP_REG_SELSENSOR   0x40
  #define AMDTEMP_REG_SELCORE 0x04
 
  /*
   * Register control (K10  K11) family
   */
  #define AMDTEMP_REG 0xa4
 
 
  Output of k8temp -dn:
 
  CPUID: Vendor: AuthenticAMD, 0x100f43: Model=04 Family=f+1
  Stepping=3 Advanced Power Management=0x1f9
 Temperature sensor: Yes
   Frequency ID control: No
 Voltage ID control: No
  THERMTRIP support: Yes
 HW Thermal control: Yes
 SW Thermal control: Yes
 100MHz multipliers: Yes
 HW P-State control: Yes
  TSC Invariant: Yes
  Temp=c0fef
  ThermTrip=1fc00c30
  0
 
  I keep a small win7 partition to test little things like this and
  see if the same thing happens there, and it doesn't, so I
  concluded that the sensors are there and are working.
 
  One thing is worth noting though. I have used a free gadget that
  shows activity/temp for each core. It worked fine with the
  previous MB/CPU.That ALSO stopped working with this new MB. Like
  FBSD, it shows 0 degrees for any core too, although it correctly
  displays each core load.

 Most likely that gadget just re-uses OS-provided information.

  The only windows tool that correctly shows the temperature are
  the ASUS tools that came with the mobo.
 
  Other than that, everything is working fine! The only thing I had
  to fix was the fstab ada location.
 
  I know this is not a big thing but I got accustomed to keeping an
  eye on those temperatures.
 
  I have googled for a few days now searching for Thermal register
  address or offsets for the Phenom II 975 BE, or anything related
  to this problem and found nothing. Every search on AMD site was
  fruitless. I could not find a single bit of tech info on this
  processor there, or any other tech info for that matter.

 http://support.amd.com/us/Processor_TechDocs/31116.pdf

  Would any one have any pointers/clues/suggestions on this?

 I would try to add some printfs (or used dtrace - whichever is
 easier for you) to see what's going on.  Or you can even use
 pciconf to directly sneak a peek at what's reported by the
 hardware, e.g.:
 # pciconf -r pci0:0:24:3 0xa4
 1c881880

 You can read the BKDG to see how to interpret the value - search
 for F3xA4.  See F3xE4 for offset calculation.

 Hopefully you should be able to see if hardware reports sane value
 and how the amdtemp ends up reporting 0�C.

I gave up the DiodeOffset recently because a lot of BIOSes do not set 
any meaningful values.  Instead, I added a tunable for that.  Please 
see the attached patch, which is also available from here:

http://people.freebsd.org/~jkim/amdtemp.diff

Jung-uk Kim
Index: share/man/man4/amdtemp.4
===
--- share/man/man4/amdtemp.4(revision 221788)
+++ share/man/man4/amdtemp.4(working copy)
@@ -25,12 +25,14 @@
 .\
 .\ $FreeBSD$
 .\
-.Dd April 8, 2008
+.Dd May 11, 2011
 .Dt AMDTEMP 4
 .Os
 .Sh NAME
 .Nm amdtemp
-.Nd device driver for AMD K8, K10 and K11 on-die digital thermal sensor
+.Nd device driver for
+.Tn AMD
+processor on-die digital thermal sensor
 .Sh SYNOPSIS
 To compile this driver into the kernel,
 place the following line in your
@@ -49,22 +51,48 @@ amdtemp_load=YES
 The
 .Nm
 driver provides support for the on-die digital thermal sensor present
-in AMD K8, K10 and K11 processors.
+in
+.Tn AMD
+Family 0Fh, 10h, 11h, 12h, and 14h processors.
 .Pp
-For the K8 family, the
+For Family 0Fh processors, the
 .Nm
-driver reports each core's temperature through a sysctl node in the
-corresponding CPU devices's sysctl tree, named
-.Va dev.amdtemp.%d.sensor{0,1}.core{0,1} .
+driver reports each core's temperature through sysctl nodes, named
+.Va dev.amdtemp.%d.core{0,1}.sensor{0,1} .
 The driver also 

Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Jung-uk Kim
On Sunday 31 July 2011 08:28 pm, Mario Lobo wrote:
 Hi to all

 In my desktop machine, I had an AM2+ ASROCK mobo with Phenom II 955
 BE that showed each core temperature perfectly under FBSD 8-STABLE,
 via dev.cpu.x.temp. amdtemp.ko loaded.

 Unfortunately this Mobo died and only found AM3 boards for which my
 phenom 955 doesn't fit. So I got an ASUS M4A88T-V EVO with a Phenom
 II 975 BE.

 Funny thing. An AM3 phenom II fits on an AM2 board but an AM3 board
 doesn't accept an AM2/AM2+ phenom II :(.

 Anyway, now, under the very same system, it shows 0 degrees on
 dev.cpu.x.temp for all cores.

 I've been looking through k8temp and amdtemp src code. I am
 definitely not

 sure of this but I believe something might have happened to those:
 From k8temp.h

 K10_THERM_REG  0xa4
 K10_THERMTRIP_REG  0xe4
 K10_CURTMP(val)(((val)  21)  0xfff)
 K10_THERMTRIP(val) ((val  1)  1)

 From amdtemp.c

 /*
  * Register control (K8 family)
  */
 #define   AMDTEMP_REG0F   0xe4
 #define   AMDTEMP_REG_SELSENSOR   0x40
 #define   AMDTEMP_REG_SELCORE 0x04

 /*
  * Register control (K10  K11) family
  */
 #define   AMDTEMP_REG 0xa4


 Output of k8temp -dn:

 CPUID: Vendor: AuthenticAMD, 0x100f43: Model=04 Family=f+1
 Stepping=3 Advanced Power Management=0x1f9
Temperature sensor: Yes
  Frequency ID control: No
Voltage ID control: No
 THERMTRIP support: Yes
HW Thermal control: Yes
SW Thermal control: Yes
100MHz multipliers: Yes
HW P-State control: Yes
 TSC Invariant: Yes
 Temp=c0fef
 ThermTrip=1fc00c30
 0

 I keep a small win7 partition to test little things like this and
 see if the same thing happens there, and it doesn't, so I concluded
 that the sensors are there and are working.

 One thing is worth noting though. I have used a free gadget that
 shows activity/temp for each core. It worked fine with the previous
 MB/CPU.That ALSO stopped working with this new MB. Like FBSD, it
 shows 0 degrees for any core too, although it correctly displays
 each core load.

 The only windows tool that correctly shows the temperature are the
 ASUS tools that came with the mobo.

FYI, FreeBSD has aibs(4) (or acpi_aiboost(4) depending on your FreeBSD 
version) and it does essentially the same thing.

Jung-uk Kim

 Other than that, everything is working fine! The only thing I had
 to fix was the fstab ada location.

 I know this is not a big thing but I got accustomed to keeping an
 eye on those temperatures.

 I have googled for a few days now searching for Thermal register
 address or offsets for the Phenom II 975 BE, or anything related to
 this problem and found nothing. Every search on AMD site was
 fruitless. I could not find a single bit of tech info on this
 processor there, or any other tech info for that matter.


 Would any one have any pointers/clues/suggestions on this?

 Thanks,
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Andriy Gapon

[cc list trimmed]

on 01/08/2011 19:23 Jung-uk Kim said the following:
 I gave up the DiodeOffset recently because a lot of BIOSes do not set 
 any meaningful values.  Instead, I added a tunable for that.  Please 
 see the attached patch, which is also available from here:
 
 http://people.freebsd.org/~jkim/amdtemp.diff

I haven't tried your patch yet, but already have a few comments :-)

- at least on head pci_cfgregread() is public via x86/include/pci_cfgreg.h

- I am not sure if you really need it; shouldn't pci_read_config() just work
since amdtemp attaches under pci bus?

- about erratum 319 - I feel like objecting to amdtemp_force_enable approach;
given the wide spread of AM2+ and AM3 in consumer boards, and the very important
fact that I have AM2+ and I have never observed (with my own eyes) incorrect
reading from amdtemp, and the less important fact that the output of amdtemp is
not used for anything critical (for anything at all, in fact) in the base
system, and that that would be a kind of POLA violation (which is PITA) - I
propose to just print some warning message on the affected systems; at most,
export that warning as a sysctl node

Finally, I promise to test this patch soon-ish.
Thank you for digging into this!

-- 
Andriy Gapon
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Matthew D. Fuller
On Sun, Jul 31, 2011 at 09:28:29PM -0300 I heard the voice of
Mario Lobo, and lo! it spake thus:
 
 Unfortunately this Mobo died and only found AM3 boards for which my
 phenom 955 doesn't fit.

Not that it helps you now, but the 955 _is_ perfectly compatible with
AM3.  It's only the initial 920 and 940 that were AM2-only.


-- 
Matthew Fuller (MF4839)   |  fulle...@over-yonder.net
Systems/Network Administrator |  http://www.over-yonder.net/~fullermd/
   On the Internet, nobody can hear you scream.
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Jung-uk Kim
On Monday 01 August 2011 03:03 pm, Andriy Gapon wrote:
 [cc list trimmed]

 on 01/08/2011 19:23 Jung-uk Kim said the following:
  I gave up the DiodeOffset recently because a lot of BIOSes do not
  set any meaningful values.  Instead, I added a tunable for that. 
  Please see the attached patch, which is also available from here:
 
  http://people.freebsd.org/~jkim/amdtemp.diff

 I haven't tried your patch yet, but already have a few comments :-)

 - at least on head pci_cfgregread() is public via
 x86/include/pci_cfgreg.h

That's cool.  Thanks.

 - I am not sure if you really need it; shouldn't pci_read_config()
 just work since amdtemp attaches under pci bus?

amdtemp(4) attaches under PCI bus but its sibling on function 2 isn't 
easy to address, i.e., hostbN.

 - about erratum 319 - I feel like objecting to amdtemp_force_enable
 approach; given the wide spread of AM2+ and AM3 in consumer boards,
 and the very important fact that I have AM2+ and I have never
 observed (with my own eyes) incorrect reading from amdtemp, and the
 less important fact that the output of amdtemp is not used for
 anything critical (for anything at all, in fact) in the base
 system, and that that would be a kind of POLA violation (which is
 PITA) - I propose to just print some warning message on the
 affected systems; at most, export that warning as a sysctl node

I have mixed feeling about this because I own a system with such 
CPU/motherboard combo, too.  I also believe it works well but errata 
is errata.  If vendor says we shouldn't use it, then we shouldn't.  
In fact, I am just following Linux as an example here but I have no 
problem with turning this into a warning message, either.  AMD says 
it shouldn't be interpreted as physical temperature but we are doing 
it anyway. ;-)

Jung-uk Kim

 Finally, I promise to test this patch soon-ish.
 Thank you for digging into this!
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Andriy Gapon
on 01/08/2011 22:48 Jung-uk Kim said the following:
 amdtemp(4) attaches under PCI bus but its sibling on function 2 isn't 
 easy to address, i.e., hostbN.

pci_find_bsf() should help with that.

-- 
Andriy Gapon
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Andriy Gapon
on 01/08/2011 22:48 Jung-uk Kim said the following:
 I have mixed feeling about this because I own a system with such 
 CPU/motherboard combo, too.  I also believe it works well but errata 
 is errata.  If vendor says we shouldn't use it, then we shouldn't.  
 In fact, I am just following Linux as an example here but I have no 
 problem with turning this into a warning message, either.


Let's cut a deal :-)
If we start using amdtemp for fan control, emergency system shutdown or similar,
then we follow the strict path.  Until then, while we use amdtemp to amuse users
with numbers, let's just print a warning :-)

-- 
Andriy Gapon
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Jung-uk Kim
On Monday 01 August 2011 04:10 pm, Andriy Gapon wrote:
 on 01/08/2011 22:48 Jung-uk Kim said the following:
  I have mixed feeling about this because I own a system with such
  CPU/motherboard combo, too.  I also believe it works well but
  errata is errata.  If vendor says we shouldn't use it, then we
  shouldn't. In fact, I am just following Linux as an example here
  but I have no problem with turning this into a warning message,
  either.

 Let's cut a deal :-)
 If we start using amdtemp for fan control, emergency system
 shutdown or similar, then we follow the strict path.  Until then,
 while we use amdtemp to amuse users with numbers, let's just print
 a warning :-)

Okay, here is the new patch (not tested on the affected system yet):

http://people.freebsd.org/~jkim/amdtemp2.diff

Jung-uk Kim
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Jung-uk Kim
On Monday 01 August 2011 04:07 pm, Andriy Gapon wrote:
 on 01/08/2011 22:48 Jung-uk Kim said the following:
  amdtemp(4) attaches under PCI bus but its sibling on function 2
  isn't easy to address, i.e., hostbN.

 pci_find_bsf() should help with that.

I thought about that but it seemed like an overkill because this 
driver is strictly MD anyway. :-)

Jung-uk Kim
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread Mario Lobo
On Monday 01 August 2011 15:52:30 Matthew D. Fuller wrote:
 On Sun, Jul 31, 2011 at 09:28:29PM -0300 I heard the voice of
 
 Mario Lobo, and lo! it spake thus:
  Unfortunately this Mobo died and only found AM3 boards for which my
  phenom 955 doesn't fit.
 
 Not that it helps you now, but the 955 _is_ perfectly compatible with
 AM3.  It's only the initial 920 and 940 that were AM2-only.

I was just following this:

http://support.amd.com/us/kbarticles/Pages/CPU-6-socket-am2-plus-phenom-ii-
compatibility-alert.aspx
-- 
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since 2.2.8 [not Pro-Audio YET!!] (99% winblows FREE)
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Re: Phenom II 975 BE shows 0 celsius

2011-08-01 Thread RW
On Mon, 1 Aug 2011 19:21:38 -0300
Mario Lobo wrote:

 On Monday 01 August 2011 15:52:30 Matthew D. Fuller wrote:
  On Sun, Jul 31, 2011 at 09:28:29PM -0300 I heard the voice of
  
  Mario Lobo, and lo! it spake thus:
   Unfortunately this Mobo died and only found AM3 boards for which
   my phenom 955 doesn't fit.
  
  Not that it helps you now, but the 955 _is_ perfectly compatible
  with AM3.  It's only the initial 920 and 940 that were AM2-only.
 
 I was just following this:
 
 http://support.amd.com/us/kbarticles/Pages/CPU-6-socket-am2-plus-phenom-ii-
 compatibility-alert.aspx

It says Although Socket AM3 processors can be used on Socket AM2+
motherboards, the opposite is not possible. 

I'm using a 955 in a M4A88T-M/USB3, which is minor variant of your AM3
board. My understanding is that the 955 is an AM3 processor.


BTW in my case only the temperature is correct, but is only given for
the first 2 cores.
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Phenom II 975 BE shows 0 celsius

2011-07-31 Thread Mario Lobo
Hi to all

In my desktop machine, I had an AM2+ ASROCK mobo with Phenom II 955 BE that 
showed each core temperature perfectly under FBSD 8-STABLE, via 
dev.cpu.x.temp. amdtemp.ko loaded.

Unfortunately this Mobo died and only found AM3 boards for which my phenom 955 
doesn't fit. So I got an ASUS M4A88T-V EVO with a Phenom II 975 BE. 

Funny thing. An AM3 phenom II fits on an AM2 board but an AM3 board doesn't 
accept an AM2/AM2+ phenom II :(.

Anyway, now, under the very same system, it shows 0 degrees on dev.cpu.x.temp 
for all cores.

I've been looking through k8temp and amdtemp src code. I am definitely not 
sure of this but I believe something might have happened to those:

From k8temp.h

K10_THERM_REG  0xa4 
K10_THERMTRIP_REG  0xe4
K10_CURTMP(val)(((val)  21)  0xfff)
K10_THERMTRIP(val) ((val  1)  1)

From amdtemp.c

/*
 * Register control (K8 family)
 */
#define AMDTEMP_REG0F   0xe4
#define AMDTEMP_REG_SELSENSOR   0x40
#define AMDTEMP_REG_SELCORE 0x04

/*
 * Register control (K10  K11) family
 */
#define AMDTEMP_REG 0xa4


Output of k8temp -dn:

CPUID: Vendor: AuthenticAMD, 0x100f43: Model=04 Family=f+1 Stepping=3
Advanced Power Management=0x1f9
   Temperature sensor: Yes
 Frequency ID control: No
   Voltage ID control: No
THERMTRIP support: Yes
   HW Thermal control: Yes
   SW Thermal control: Yes
   100MHz multipliers: Yes
   HW P-State control: Yes
TSC Invariant: Yes
Temp=c0fef
ThermTrip=1fc00c30
0

I keep a small win7 partition to test little things like this and see if the 
same thing happens there, and it doesn't, so I concluded that the sensors are 
there and are working.

One thing is worth noting though. I have used a free gadget that shows 
activity/temp for each core. It worked fine with the previous MB/CPU.That ALSO 
stopped working with this new MB. Like FBSD, it shows 0 degrees for any core 
too, although it correctly displays each core load.

The only windows tool that correctly shows the temperature are the ASUS tools 
that came with the mobo.

Other than that, everything is working fine! The only thing I had to fix was 
the fstab ada location.

I know this is not a big thing but I got accustomed to keeping an eye on those 
temperatures.

I have googled for a few days now searching for Thermal register address or 
offsets for the Phenom II 975 BE, or anything related to this problem and 
found nothing. Every search on AMD site was fruitless. I could not find a 
single bit of tech info on this processor there, or any other tech info for 
that matter.


Would any one have any pointers/clues/suggestions on this?

Thanks,
-- 
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since 2.2.8 [not Pro-Audio YET!!] (99% winblows FREE)
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