From 5b74e3abb3e9bd8a2f52a7b653941e3686c5df1a Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Sat, 21 Jul 2007 17:09:57 +0200 Subject: [PATCH] x86_64: Use string instruction memcpy/memset on AMD Fam10 Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/setup.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 33ef718f8cb5..675b3d6de10b 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -575,6 +575,8 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) 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) -- 2.20.1