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| author | Tejun Heo <tj@kernel.org> | 2011-01-23 14:37:30 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-28 14:54:05 +0100 |
| commit | 4c321ff8a01a95badf5d5403d80ca4e0ab07fce7 (patch) | |
| tree | 6fb9715b01c94988e20fa3ac2324c364854e6a79 /arch/x86/include/asm/smp.h | |
| parent | x86: Make default_send_IPI_mask_sequence/allbutself_logical() 32bit only (diff) | |
| download | linux-4c321ff8a01a95badf5d5403d80ca4e0ab07fce7.tar.xz linux-4c321ff8a01a95badf5d5403d80ca4e0ab07fce7.zip | |
x86: Replace cpu_2_logical_apicid[] with early percpu variable
Unlike x86_64, on x86_32, the mapping from cpu to logical apicid
may vary depending on apic in use. cpu_2_logical_apicid[] array
is used for this mapping. Replace it with early percpu variable
x86_cpu_to_logical_apicid to make it better aligned with other
mappings.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: eric.dumazet@gmail.com
Cc: yinghai@kernel.org
Cc: brgerst@gmail.com
Cc: gorcunov@gmail.com
Cc: penberg@kernel.org
Cc: shaohui.zheng@intel.com
Cc: rientjes@google.com
LKML-Reference: <1295789862-25482-5-git-send-email-tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/smp.h')
| -rw-r--r-- | arch/x86/include/asm/smp.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h index 4c2f63c7fc1b..dc7c46a89db7 100644 --- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -38,6 +38,9 @@ static inline struct cpumask *cpu_core_mask(int cpu) DECLARE_EARLY_PER_CPU(u16, x86_cpu_to_apicid); DECLARE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid); +#if defined(CONFIG_SMP) && defined(CONFIG_X86_32) +DECLARE_EARLY_PER_CPU(int, x86_cpu_to_logical_apicid); +#endif /* Static state in head.S used to set up a CPU */ extern struct { |