diff options
| author | Jack Steiner <steiner@sgi.com> | 2008-06-16 21:09:10 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 14:23:29 +0400 |
| commit | ab9c0bb8a8c1d71dd303abdaa61ec496128e2fbe (patch) | |
| tree | 14b13f5a6db120debd610c1387d37c629bad9481 | |
| parent | b6df1b8bc1250191cfee15627697111c1cbda53f (diff) | |
| download | linux-ab9c0bb8a8c1d71dd303abdaa61ec496128e2fbe.tar.xz | |
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>
| -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 @@ # define MAX_MPC_ENTRY 1024 # define MAX_APICS 256 #else -/* - * A maximum of 255 APICs with the current APIC ID architecture. - */ -# define MAX_APICS 255 +# if NR_CPUS <= 255 +# define MAX_APICS 255 +# else +# define MAX_APICS 32768 +# endif #endif struct intel_mp_floating { |