From: Andi Kleen Date: Sun, 20 Nov 2005 17:49:05 +0000 (+0100) Subject: [PATCH] i386: Use bigsmp for > 8 core Opteron systems X-Git-Tag: firefly_0821_release~39875 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d7169160bb772efe6510d8bc0c8e7625efbcc0b3;p=firefly-linux-kernel-4.4.55.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 Signed-off-by: Linus Torvalds --- 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;