x86_64: Use string instruction memcpy/memset on AMD Fam10

Andi Kleen · Linus Torvalds · commit 5b74e3abb3e9 · 2007-07-21T18:37:08.000-07:00
Signed-off-by: Andi Kleen &lt;ak@suse.de&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
diff --git 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)
