From: Andreas Herrmann <andreas.herrmann3@amd.com>
To: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/5] x86: unconditionally enable PAT for AMD CPUs
Date: Tue, 10 Jun 2008 16:04:30 +0200 [thread overview]
Message-ID: <20080610140430.GE5024@alberich.amd.com> (raw)
If PAT support is advertised it should just work. No errata known.
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
---
arch/x86/kernel/cpu/addon_cpuid_features.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c
index d8b3e4a..0fbd062 100644
--- a/arch/x86/kernel/cpu/addon_cpuid_features.c
+++ b/arch/x86/kernel/cpu/addon_cpuid_features.c
@@ -54,14 +54,11 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
void __cpuinit validate_pat_support(struct cpuinfo_x86 *c)
{
switch (c->x86_vendor) {
- case X86_VENDOR_AMD:
- if (c->x86 >= 0xf && c->x86 <= 0x11)
- return;
- break;
case X86_VENDOR_INTEL:
if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15))
return;
break;
+ case X86_VENDOR_AMD:
case X86_VENDOR_CENTAUR:
case X86_VENDOR_TRANSMETA:
return;
--
1.5.5.3
next reply other threads:[~2008-06-10 14:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-10 14:04 Andreas Herrmann [this message]
2008-06-10 21:40 ` [PATCH 1/5] x86: unconditionally enable PAT for AMD CPUs H. Peter Anvin
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