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(parent: 87ce786) | patch
x86: use cpuid vector 0xb when available for detecting cpu topology
authorSuresh Siddha <suresh.b.siddha@intel.com>
Sat, 23 Aug 2008 15:47:10 +0000 (17:47 +0200)
committerIngo Molnar <mingo@elte.hu>
Sat, 23 Aug 2008 15:47:10 +0000 (17:47 +0200)
commitbbb65d2d365efe9951290e61678dcf81ec60add4
treef3eacf1b1313d729e084064ed6dda5db64522bf4tree | snapshot
parent87ce786ae5f24e336195805a9fc7428a6f922478commit | diff
x86: use cpuid vector 0xb when available for detecting cpu topology

cpuid leaf 0xb provides extended topology enumeration. This interface provides
the 32-bit x2APIC id of the logical processor and it also provides a new
mechanism to detect SMT and core siblings (which provides increased
addressability).

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/cpu/addon_cpuid_features.c diff | blob | history
arch/x86/kernel/cpu/common_64.c diff | blob | history
arch/x86/kernel/cpu/intel.c diff | blob | history
arch/x86/kernel/cpu/intel_64.c diff | blob | history
include/asm-x86/cpufeature.h diff | blob | history
include/asm-x86/processor.h diff | blob | history
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