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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-06-08 18:29:22 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-10 11:32:09 +0200 |
| commit | e0da33646826b66ef933d47ea2fb7a693fd849bf (patch) | |
| tree | 398d86b96531e574c4710ea1538806b7e0ae0fef /arch/x86/kernel/genapic_64.c | |
| parent | c3ff01672a23fabb40d4b80ff25a845582fd07c2 (diff) | |
| download | linux-e0da33646826b66ef933d47ea2fb7a693fd849bf.tar.gz linux-e0da33646826b66ef933d47ea2fb7a693fd849bf.tar.bz2 linux-e0da33646826b66ef933d47ea2fb7a693fd849bf.zip | |
x86: introduce max_physical_apicid for bigsmp switching
a multi-socket test-system with 3 or 4 ioapics, when 4 dualcore cpus or
2 quadcore cpus installed, needs to switch to bigsmp or physflat.
CPU apic id is [4,11] instead of [0,7], and we need to check max apic
id instead of cpu numbers.
also add check for 32 bit when acpi is not compiled in or acpi=off.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/genapic_64.c')
| -rw-r--r-- | arch/x86/kernel/genapic_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c index cbaaf69bedb2..1fa8be5bd217 100644 --- a/arch/x86/kernel/genapic_64.c +++ b/arch/x86/kernel/genapic_64.c @@ -51,7 +51,7 @@ void __init setup_apic_routing(void) else #endif - if (num_possible_cpus() <= 8) + if (max_physical_apicid < 8) genapic = &apic_flat; else genapic = &apic_physflat; |