linux-kernel - [PATCH] [8/58] x86_64: Use string instruction memcpy/memset on AMD Fam10

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Date:	Thu, 19 Jul 2007 11:54:52 +0200 (CEST)
From:	Andi Kleen <ak@...e.de>
To:	patches@...-64.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [8/58] x86_64: Use string instruction memcpy/memset on AMD Fam10


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

---
 arch/x86_64/kernel/setup.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux/arch/x86_64/kernel/setup.c
===================================================================
--- linux.orig/arch/x86_64/kernel/setup.c
+++ linux/arch/x86_64/kernel/setup.c
@@ -575,6 +575,8 @@ static void __cpuinit init_amd(struct cp
 	level = cpuid_eax(1);
 	if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58))
 		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
+	if (c->x86 == 0x10)
+		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
 
 	/* Enable workaround for FXSAVE leak */
 	if (c->x86 >= 6)
-
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