commit 5b74e3abb3e9bd8a2f52a7b653941e3686c5df1a
author Andi Kleen <ak@suse.de> Sat Jul 21 17:09:57 2007 +0200
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Sat Jul 21 18:37:08 2007 -0700
tree 8b1beb51463e03ef63b554d41f853b857d7bf1ec
parent ae2c6dcf90c5a9ff9bd9a176cafd43a255fcc64b

x86_64: Use string instruction memcpy/memset on AMD Fam10

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/x86_64/kernel/setup.c

diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 33ef718..675b3d6 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -575,6 +575,8 @@
 	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)