From: Andi Kleen <ak@suse.de>
Date: Sun, 20 Nov 2005 17:49:05 +0000 (+0100)
Subject: [PATCH] i386: Use bigsmp for > 8 core Opteron systems
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d7169160bb772efe6510d8bc0c8e7625efbcc0b3;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] i386: Use bigsmp for > 8 core Opteron systems

bigsmp is reported to work on large Opteron systems on 32bit too.
Enable it by default there.

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

diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 8f767d9aa45d..1ca5269b1e86 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -220,8 +220,9 @@ static void __devinit MP_processor_info (struct mpc_config_processor *m)
 	num_processors++;
 
 	if ((num_processors > 8) &&
-	    APIC_XAPIC(ver) &&
-	    (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL))
+	    ((APIC_XAPIC(ver) &&
+	     (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)) ||
+	     (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)))
 		def_to_bigsmp = 1;
 	else
 		def_to_bigsmp = 0;