From 72e76be2fedb4db320a4855d870f731c1242a9d3 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Sat, 16 Apr 2005 15:25:07 -0700
Subject: [PATCH] x86_64: Don't assume future AMD CPUs have K8 compatible
 performance counters

The NMI watchdog code did this incorrectly

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index d9867de..6ec5217 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -336,7 +336,7 @@ void setup_apic_nmi_watchdog(void)
 {
 	switch (boot_cpu_data.x86_vendor) {
 	case X86_VENDOR_AMD:
-		if (boot_cpu_data.x86 < 6)
+		if (boot_cpu_data.x86 != 15)
 			return;
 		if (strstr(boot_cpu_data.x86_model_id, "Screwdriver"))
 			return;
-- 
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