[src/trunk]: src/sys/arch/x86/pci Family 10h Errata #319: Attach on Family10h...

[cegger <cegger%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b92da4651e36
branches:  trunk
changeset: 748206:b92da4651e36
user:      cegger <cegger%NetBSD.org@localhost>
date:      Fri Oct 16 12:05:19 2009 +0000

description:
Family 10h Errata #319: Attach on Family10h cpu series which have it fixed.

diffstat:

 sys/arch/x86/pci/amdtemp.c |  16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)

diffs (44 lines):

diff -r bd7e3d7e5773 -r b92da4651e36 sys/arch/x86/pci/amdtemp.c
--- a/sys/arch/x86/pci/amdtemp.c        Fri Oct 16 10:07:16 2009 +0000
+++ b/sys/arch/x86/pci/amdtemp.c        Fri Oct 16 12:05:19 2009 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: amdtemp.c,v 1.8 2009/06/16 07:34:40 cegger Exp $ */
+/*      $NetBSD: amdtemp.c,v 1.9 2009/10/16 12:05:19 cegger Exp $ */
 /*      $OpenBSD: kate.c,v 1.2 2008/03/27 04:52:03 cnst Exp $   */
 
 /* 
@@ -48,7 +48,7 @@
 
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: amdtemp.c,v 1.8 2009/06/16 07:34:40 cegger Exp $ ");
+__KERNEL_RCSID(0, "$NetBSD: amdtemp.c,v 1.9 2009/10/16 12:05:19 cegger Exp $ ");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -72,6 +72,8 @@
  *
  * Family10h:
  * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116.PDF
+ * Family10h Errata: #319
+ * http://support.amd.com/de/Processor_TechDocs/41322.pdf
  *
  * Family11h:
  * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/41256.pdf
@@ -207,6 +209,16 @@
        if (family == 0xf)
                family += CPUID2EXTFAMILY(cpu_signature);
 
+       /* Errata #319: This has been fixed in Revision C2. */
+       if (family == 0x10) {
+               if (CPUID2MODEL(cpu_signature) < 4)
+                       return 0;
+               if (CPUID2MODEL(cpu_signature) == 4
+                   && CPUID2STEPPING(cpu_signature) < 2)
+                       return 0;
+       }
+
+
        /* Not yet supported CPUs */
        if (family >= 0x12)
                return 0;