Messages in this thread Patches in this message | | | From | Bernd Schubert <> | Subject | x86: enable pat on amd athlon mode=6 | Date | Wed, 25 Jun 2008 21:53:35 +0200 |
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Hello,
on my AthlonXP 1700 PAT works fine (I tested it several days). Please accept one of the patches below, I don't know which you refer.
Signed-off-by: Bernd Schubert <bernd-schubert@gmx.de>
Patch to enable PAT specifically on model=6
diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c index c2e1ce3..61a5aa5 100644 --- a/arch/x86/kernel/cpu/addon_cpuid_features.c +++ b/arch/x86/kernel/cpu/addon_cpuid_features.c @@ -57,6 +57,8 @@ void __cpuinit validate_pat_support(struct cpuinfo_x86 *c) case X86_VENDOR_AMD: if (c->x86 >= 0xf && c->x86 <= 0x11) return; + if (c->x86 == 0x6) + return; break; case X86_VENDOR_INTEL: if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15))
Or maybe PAT on all system >=6 is suitable?
diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c index c2e1ce3..f12c413 100644 --- a/arch/x86/kernel/cpu/addon_cpuid_features.c +++ b/arch/x86/kernel/cpu/addon_cpuid_features.c @@ -55,7 +55,7 @@ void __cpuinit validate_pat_support(struct cpuinfo_x86 *c) { switch (c->x86_vendor) { case X86_VENDOR_AMD: - if (c->x86 >= 0xf && c->x86 <= 0x11) + if (c->x86 >= 0x6 && c->x86 <= 0x11) return; break; case X86_VENDOR_INTEL:
Thanks, Bernd
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