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authorYinghai Lu <yhlu.kernel@gmail.com>2008-06-08 21:29:22 -0400
committerIngo Molnar <mingo@elte.hu>2008-06-10 05:32:09 -0400
commite0da33646826b66ef933d47ea2fb7a693fd849bf (patch)
tree398d86b96531e574c4710ea1538806b7e0ae0fef /arch/x86/kernel/mpparse.c
parentc3ff01672a23fabb40d4b80ff25a845582fd07c2 (diff)
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/mpparse.c')
-rw-r--r--arch/x86/kernel/mpparse.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index b4a950da2f97..7591325e616d 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -473,6 +473,11 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early)
473 ++mpc_record; 473 ++mpc_record;
474#endif 474#endif
475 } 475 }
476
477#ifdef CONFIG_X86_GENERICARCH
478 generic_bigsmp_probe();
479#endif
480
476 setup_apic_routing(); 481 setup_apic_routing();
477 if (!num_processors) 482 if (!num_processors)
478 printk(KERN_ERR "MPTABLE: no processors registered!\n"); 483 printk(KERN_ERR "MPTABLE: no processors registered!\n");