aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-x86_64/apicdef.h
diff options
context:
space:
mode:
authorAndi Kleen <ak@suse.de>2005-09-12 12:49:24 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-12 13:49:56 -0400
commit3f098c2605bdf50176b26f4fa724e9b9c99e5242 (patch)
treed4632bc555c52afed6ae4c0444659dca49e3e406 /include/asm-x86_64/apicdef.h
parentb91691164be174b780f5c1bb145a7ab5d33fce2f (diff)
[PATCH] x86-64: Support dualcore and 8 socket systems in k8 fallback node parsing
In particular on systems where the local APIC space and node space is very different from the Linux CPU number space. Previously the older NUMA setup code directly parsing the K8 northbridge registers had some issues on 8 socket or dual core systems. This patch fixes them. This is mainly done by fixing some confusion between Linux CPU numbers and local APIC ids. We now pass the local APIC IDs to later code, which avoids mismatches. Also add some heuristics to detect cases where the Hypertransport nodeids and the local APIC IDs don't match, but are shifted by a constant offset. This is still all quite hackish, hopefully BIOS writers fill in correct SRATs instead. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64/apicdef.h')
-rw-r--r--include/asm-x86_64/apicdef.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-x86_64/apicdef.h b/include/asm-x86_64/apicdef.h
index 9388062c4f6e..fb1c99ac669f 100644
--- a/include/asm-x86_64/apicdef.h
+++ b/include/asm-x86_64/apicdef.h
@@ -113,6 +113,7 @@
113#define APIC_BASE (fix_to_virt(FIX_APIC_BASE)) 113#define APIC_BASE (fix_to_virt(FIX_APIC_BASE))
114 114
115#define MAX_IO_APICS 128 115#define MAX_IO_APICS 128
116#define MAX_LOCAL_APIC 256
116 117
117/* 118/*
118 * All x86-64 systems are xAPIC compatible. 119 * All x86-64 systems are xAPIC compatible.