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| author | ravikiran thirumalai <kiran@scalex86.org> | 2006-06-26 13:56:04 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 10:48:14 -0700 |
| commit | 0f4fdb7fba0b3ec66df39d0e743e701404161fb8 (patch) | |
| tree | c54005e24d649db5c5c0c01ff0a3e01e29dbefd1 | |
| parent | 7c393e7b95bceafcefd5357afdda9f5047b6aa69 (diff) | |
| download | linux-0f4fdb7fba0b3ec66df39d0e743e701404161fb8.tar.gz linux-0f4fdb7fba0b3ec66df39d0e743e701404161fb8.tar.bz2 linux-0f4fdb7fba0b3ec66df39d0e743e701404161fb8.zip | |
[PATCH] x86_64: Use local APIC ID from local APIC instead of CPUID
vSMPowered systems use apic_cluster too. Forcing apic_physflat works
on these systems too, but only if we change phys_pkg_id to use
hard_smp_prcoessor_id() instead of cpuid_ebx. I am guessing other
multichassi cluster systems would need this too.
Signed-off-by: ravikiran thirumalai <kiran@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/x86_64/kernel/genapic_flat.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c index 1a2ab825be98..c66ca7b1d31a 100644 --- a/arch/x86_64/kernel/genapic_flat.c +++ b/arch/x86_64/kernel/genapic_flat.c @@ -108,10 +108,7 @@ static unsigned int flat_cpu_mask_to_apicid(cpumask_t cpumask) static unsigned int phys_pkg_id(int index_msb) { - u32 ebx; - - ebx = cpuid_ebx(1); - return ((ebx >> 24) & 0xFF) >> index_msb; + return hard_smp_processor_id() >> index_msb; } struct genapic apic_flat = { |