diff options
author | Jack Steiner <steiner@sgi.com> | 2008-06-16 13:09:10 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 06:23:29 -0400 |
commit | ab9c0bb8a8c1d71dd303abdaa61ec496128e2fbe (patch) | |
tree | 14b13f5a6db120debd610c1387d37c629bad9481 /include | |
parent | b6df1b8bc1250191cfee15627697111c1cbda53f (diff) |
x86: increase MAX_APICS for very large x86-64 configs
Increase the maximum number of apics when running very large
configurations. This patch has no affect on most systems.
The patch has no effect on any 32-bit kernel. It adds ~4k to the size
of 64-bit kernels but only if NR_CPUS > 255.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-x86/mpspec_def.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/asm-x86/mpspec_def.h b/include/asm-x86/mpspec_def.h index dc6ef85e3624..38d1e73b49e4 100644 --- a/include/asm-x86/mpspec_def.h +++ b/include/asm-x86/mpspec_def.h | |||
@@ -17,10 +17,11 @@ | |||
17 | # define MAX_MPC_ENTRY 1024 | 17 | # define MAX_MPC_ENTRY 1024 |
18 | # define MAX_APICS 256 | 18 | # define MAX_APICS 256 |
19 | #else | 19 | #else |
20 | /* | 20 | # if NR_CPUS <= 255 |
21 | * A maximum of 255 APICs with the current APIC ID architecture. | 21 | # define MAX_APICS 255 |
22 | */ | 22 | # else |
23 | # define MAX_APICS 255 | 23 | # define MAX_APICS 32768 |
24 | # endif | ||
24 | #endif | 25 | #endif |
25 | 26 | ||
26 | struct intel_mp_floating { | 27 | struct intel_mp_floating { |