Re: bin/38667: cpuctl does not properly deal with AMD Phenom

[Paul Goyette <paul%whooppee.com@localhost>]

The following reply was made to PR bin/38667; it has been noted by GNATS.

From: Paul Goyette <paul%whooppee.com@localhost>
To: Chris Gilbert <chris%dokein.co.uk@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, gnats-admin%netbsd.org@localhost, 
netbsd-bugs%netbsd.org@localhost
Subject: Re: bin/38667: cpuctl does not properly deal with AMD Phenom
Date: Sat, 17 May 2008 05:45:52 -0700 (PDT)

 On Sat, 17 May 2008, Chris Gilbert wrote:
 
 >>  +  case 0x01:
 >>  +          switch (model) {
 >>  +                  case 0x02:
 >>  +                          ret = "Phenom";
 >
 > I think this would have to actually be "Family 10h", as Opteron's also
 > report the same cpuid.  See page 5 of:
 > http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/41322.pdf
 >
 > If you're ok with that I'll check in the change.
 
 Hmmm, when all this was still in-kernel we were able to differentiate 
 (or at least, unambiguously identify my quad-core Phenom).
 
 Here's the dmesg output from previous 4.99.60 kernel:
 
   cpu0 at mainbus0 apid 0: (boot processor)
   cpu0: AMD Phenom(tm) 9600 Quad-Core Processor, 2310.80 MHz
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 So it seems to me we lost something when moving this all to userland.
 
 > I guess we should also pick-up and fix errata 298 if necessary.
 > Although that is more complex as I believe the registers have to be
 > updated on every core.
 
 Not sure what errata 298 is - guess I'll have to research that.
 
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