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authorIngo Molnar <mingo@elte.hu>2008-09-05 09:21:21 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-05 09:21:21 +0200
commit9042763808c5285a1a61b45b0fe98a710a4c903c (patch)
tree349be736a3b56a64c8835df03f127959bfc6e0e0 /arch/x86/kernel/cpu/intel.c
parentMerge branch 'x86/cpu' into x86/core (diff)
parentMerge branch 'x86/cpu' into x86/x2apic (diff)
downloadlinux-9042763808c5285a1a61b45b0fe98a710a4c903c.tar.xz
linux-9042763808c5285a1a61b45b0fe98a710a4c903c.zip
Merge branch 'x86/x2apic' into x86/core
Conflicts: arch/x86/kernel/cpu/common_64.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/intel.c')
-rw-r--r--arch/x86/kernel/cpu/intel.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index c5ac08124adc..959417b8cd64 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -176,9 +176,16 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
if (p)
strcpy(c->x86_model_id, p);
- c->x86_max_cores = num_cpu_cores(c);
-
- detect_ht(c);
+ detect_extended_topology(c);
+
+ if (!cpu_has(c, X86_FEATURE_XTOPOLOGY)) {
+ /*
+ * let's use the legacy cpuid vector 0x1 and 0x4 for topology
+ * detection.
+ */
+ c->x86_max_cores = num_cpu_cores(c);
+ detect_ht(c);
+ }
/* Work around errata */
Intel_errata_workarounds(c);