linux-kernel - [PATCH] [4/11] x86_64: Set K8 CPUID flag for K8/Fam10h/Fam11h

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Date:	Fri, 20 Jul 2007 17:32:48 +0200 (CEST)
From:	Andi Kleen <ak@...e.de>
To:	patches@...-64.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [4/11] x86_64: Set K8 CPUID flag for K8/Fam10h/Fam11h


Previously this flag was only used on 32bit, but some shared code can use
it now.

Signed-off-by: Andi Kleen <ak@...e.de>

Index: linux/arch/x86_64/kernel/setup.c
===================================================================
--- linux.orig/arch/x86_64/kernel/setup.c
+++ linux/arch/x86_64/kernel/setup.c
@@ -612,6 +612,9 @@ static void __cpuinit init_amd(struct cp
 	else
 		num_cache_leaves = 3;
 
+	if (c->x86 == 0xf || c->x86 == 0x10 || c->x86 == 0x11)
+		set_bit(X86_FEATURE_K8, &c->x86_capability);
+
 	/* RDTSC can be speculated around */
 	clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability);
 
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