svn commit: r197102 - head/sys/dev/amdtemp

[Kris Kennaway]

Jung-uk Kim wrote:
> Author: jkim
> Date: Fri Sep 11 21:47:44 2009
> New Revision: 197102
> URL: http://svn.freebsd.org/changeset/base/197102
> 
> Log:
>   Improve amdtemp(4) significantly:
>   
>   - Improve newer AMD processor support (Family 0Fh Revision F and later).
>   - Adjust offset if DiodeOffet is set and valid.  Note it is experimental
>   but it seems to give us more realistic temperatures.  Newer Linux driver
>   blindly adds 21C for Family 0Fh desktop processors, however.
>   - Always populate dev.cpu and dev.amdtemp sysctl trees regardless of probe
>   order for consistency.  Previously, dev.cpu.N.temperature was not populated
>   if amdtemp was loaded later than ACPI CPU driver and temperatures were not
>   accessible from dev.amdtemp.N.sensor0 tree for Family 10h/11h processors.
>   - Read the CPUID from PCI register instead of CPUID instruction to prevent
>   possible revision mismatches on multi-socket system.
>   - Change macros and variables to make them closer to AMD documents.
>   - Fix style(9) nits and improve comments.

It no longer appears to work for me.  The old version reported:

dev.amdtemp.0.%desc: AMD K8 Thermal Sensors
dev.amdtemp.0.%driver: amdtemp
dev.amdtemp.0.%parent: hostb9
dev.amdtemp.0.sensor0.core0: 38.0C
dev.amdtemp.0.sensor0.core1: 45.0C
dev.amdtemp.0.sensor1.core0: 38.0C
dev.amdtemp.0.sensor1.core1: 45.0C
dev.cpu.0.temperature: 38.0C
dev.cpu.1.temperature: 38.0C

but none of those sysctl nodes are now present.

CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ (2400.10-MHz 
K8-class CPU)
   Origin = "AuthenticAMD"  Id = 0x20f32  Stepping = 2
 
Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
   Features2=0x1<SSE3>
   AMD Features=0xe2500800<SYSCALL,NX,MMX+,FFXSR,LM,3DNow!+,3DNow!>
   AMD Features2=0x3<LAHF,CMP>
ACPI APIC Table: <A M I  OEMAPIC >