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authorAndi Kleen <ak@suse.de>2006-09-26 10:52:26 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:26 +0200
commit874c4fe389d1358f82c96dc9b5092fc5c7690604 (patch)
tree9d79c398041c8902cff3abb6c9495c3d63bf59f1 /include/asm-i386/mach-es7000
parent9142e0c8396b25ed4cb549b5efa636065768ebe0 (diff)
[PATCH] i386: Allow to use GENERICARCH for UP kernels
There are some machines around (large xSeries or Unisys ES7000) that need physical IO-APIC destination mode to access all of their IO devices. This currently doesn't work in UP kernels as used in distribution installers. This patch allows to compile even UP kernels as GENERICARCH which allows to use physical or clustered APIC mode. Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include/asm-i386/mach-es7000')
-rw-r--r--include/asm-i386/mach-es7000/mach_apic.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-i386/mach-es7000/mach_apic.h b/include/asm-i386/mach-es7000/mach_apic.h
index b5f3f0d0b2b..26333685a7f 100644
--- a/include/asm-i386/mach-es7000/mach_apic.h
+++ b/include/asm-i386/mach-es7000/mach_apic.h
@@ -123,9 +123,13 @@ extern u8 cpu_2_logical_apicid[];
/* Mapping from cpu number to logical apicid */
static inline int cpu_to_logical_apicid(int cpu)
{
+#ifdef CONFIG_SMP
if (cpu >= NR_CPUS)
return BAD_APICID;
return (int)cpu_2_logical_apicid[cpu];
+#else
+ return logical_smp_processor_id();
+#endif
}
static inline int mpc_apic_id(struct mpc_config_processor *m, struct mpc_config_translation *unused)