[PATCH] hwmon (c7temp): new driver for VIA C7 CPU

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Here it is:

   vendor_id = "CentaurHauls"
   version information (1/eax):
      processor type  = primary processor (0)
      family          = Intel Pentium Pro/II/III/Celeron, AMD
Athlon/Duron, Cyrix M2, VIA C3 (6)
      model           = 0xa (10)
      stepping id     = 0x9 (9)
      extended family = 0x0 (0)
      extended model  = 0x0 (0)
      (simple synth)  = VIA C7 / C7-M (Esther WinChip C5J core)
   miscellaneous (1/ebx):
      process local APIC physical ID = 0x0 (0)
      cpu count                      = 0x1 (1)
      CLFLUSH line size              = 0x8 (8)
      brand index                    = 0x0 (0)
   brand id = 0x00 (0): unknown
   feature information (1/edx):
      x87 FPU on chip                        = true
      virtual-8086 mode enhancement          = true
      debugging extensions                   = true
      page size extensions                   = true
      time stamp counter                     = true
      RDMSR and WRMSR support                = true
      physical address extensions            = true
      machine check exception                = true
      CMPXCHG8B inst.                        = true
      APIC on chip                           = true
      SYSENTER and SYSEXIT                   = true
      memory type range registers            = true
      PTE global bit                         = true
      machine check architecture             = false
      conditional move/compare instruction   = true
      page attribute table                   = true
      page size extension                    = false
      processor serial number                = false
      CLFLUSH instruction                    = true
      debug store                            = false
      thermal monitor and clock ctrl         = true
      MMX Technology                         = true
      FXSAVE/FXRSTOR                         = true
      SSE extensions                         = true
      SSE2 extensions                        = true
      self snoop                             = false
      hyper-threading / multi-core supported = false
      therm. monitor                         = false

According to the datasheet, this should be 'true'.


      IA64                                   = false
      pending break event                    = true
   feature information (1/ecx):
      PNI/SSE3: Prescott New Instructions    = true
      MONITOR/MWAIT                          = false
      CPL-qualified debug store              = false
      VMX: virtual machine extensions        = false
      Enhanced Intel SpeedStep Technology    = true
      thermal monitor 2                      = false

Same here.


      context ID: adaptive or shared L1 data = false
      cmpxchg16b available                   = false
      xTPR disable                           = false
   extended processor signature (0x80000001/eax):
      generation     = 0x0 (0)
      model          = 0x0 (0)
      stepping       = 0x0 (0)
      (simple synth) = unknown
   extended feature flags (0x80000001/edx):
      x87 FPU on chip                       = false
      virtual-8086 mode enhancement         = false
      debugging extensions                  = false
      page size extensions                  = false
      time stamp counter                    = false
      RDMSR and WRMSR support               = false
      physical address extensions           = false
      machine check exception               = false
      CMPXCHG8B inst.                       = false
      APIC on chip                          = false
      SYSCALL and SYSRET instructions       = false
      memory type range registers           = false
      global paging extension               = false
      machine check architecture            = false
      conditional move/compare instruction  = false
      page attribute table                  = false
      page size extension                   = false
      multiprocessing capable               = false
      AMD multimedia instruction extensions = false
      MMX Technology                        = false
      extended MMX                          = false
      SSE extensions                        = false
      AA-64                                 = false
      3DNow! instruction extensions         = false
      3DNow! instructions                   = false
   brand = "                   VIA Esther processor 1000MHz"
   L1 TLB/cache information: 2M/4M pages & L1 TLB (0x80000005/eax):
      instruction # entries     = 0x0 (0)
      instruction associativity = 0x0 (0)
      data # entries            = 0x0 (0)
      data associativity        = 0x0 (0)
   L1 TLB/cache information: 4K pages & L1 TLB (0x80000005/ebx):
      instruction # entries     = 0x80 (128)
      instruction associativity = 0x8 (8)
      data # entries            = 0x80 (128)
      data associativity        = 0x8 (8)
   L1 data cache information (0x80000005/ecx):
      line size (bytes) = 0x40 (64)
      lines per tag     = 0x1 (1)
      associativity     = 0x4 (4)
      size (Kb)         = 0x40 (64)
   L1 instruction cache information (0x80000005/ecx):
      line size (bytes) = 0x40 (64)
      lines per tag     = 0x1 (1)
      associativity     = 0x4 (4)
      size (Kb)         = 0x40 (64)
   L2 TLB/cache information: 2M/4M pages & L2 TLB (0x80000006/eax):
      instruction # entries     = 0x0 (0)
      instruction associativity = L2 off (0)
      data # entries            = 0x0 (0)
      data associativity        = L2 off (0)
   L2 TLB/cache information: 4K pages & L2 TLB (0x80000006/ebx):
      instruction # entries     = 0x0 (0)
      instruction associativity = L2 off (0)
      data # entries            = 0x0 (0)
      data associativity        = L2 off (0)
   L2 unified cache information (0x80000006/ecx):
      line size (bytes) = 0x40 (64)
      lines per tag     = 0x1 (1)
      associativity     = 0xa (10)
      size (Kb)         = 0x80 (128)
   0xc0000001: eax=0x00000000
   extended feature flags (0xc0000001/edx):
      alternate instruction set                 = false
      alternate instruction set enabled         = false
      random number generator                   = true
      random number generator enabled           = true
      LongHaul MSR 0000_110Ah                   = false
      FEMMS                                     = false
      advanced cryptography engine (ACE)        = true
      advanced cryptography engine (ACE)enabled = true
   0xc0000002: eax=0x00000000 ebx=0x08000810 ecx=0x08100a13 edx=0x42000000


Wilken, what motherboard is this? Are there any BIOS settings (thermal
management) that you can play around with? Try different thermal
management settings and rerun cpuid and check if the thermal monitors
show up as 'true'.
I have a cpuid dump from Sergio (C7 on a LN10000 board) and the only
difference between his dump and yours is that his shows 'true' for
both thermal monitors. Maybe your BIOS disables these features on your
CPU.

...juerg



On Fri, Jul 4, 2008 at 12:07 AM, Jean Delvare <khali at linux-fr.org> wrote:
> On Thu, 3 Jul 2008 07:39:24 +0200, Wilken Gottwalt wrote:
>> Am Mittwoch 02 Juli 2008 20:22:57 schrieb Juerg Haefliger:
>> > Hi Jean, Wilken,
>> >
>> > Thanks for testing the driver. Wilken, can you run the attached tool
>> > with and without the '-r' option and send the output? Your CPU should
>> > have the diode.
>> >
>> > ...juerg
>>
>> Hi Juerg,
>>
>> this is a really cute little app. Okay, here is the output.
>
> Err, where?
>
> --
> Jean Delvare
>




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