x86: cpu/common*.c, merge detect_ht()

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 12 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f9191207718b..b2018f76c94d 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -330,6 +330,9 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
         if (cpu_has(c, X86_FEATURE_CMP_LEGACY))
                 goto out;
 
+        if (cpu_has(c, X86_FEATURE_XTOPOLOGY))
+                return;
+
         cpuid(1, &eax, &ebx, &ecx, &edx);
 
         smp_num_siblings = (ebx & 0xff0000) >> 16;
@@ -346,8 +349,11 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
                 }
 
                 index_msb = get_count_order(smp_num_siblings);
+#ifdef CONFIG_X86_64
+                c->phys_proc_id = phys_pkg_id(index_msb);
+#else
                 c->phys_proc_id = phys_pkg_id(c->initial_apicid, index_msb);
-
+#endif
 
                 smp_num_siblings = smp_num_siblings / c->x86_max_cores;
 
@@ -355,8 +361,13 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 
                 core_bits = get_count_order(c->x86_max_cores);
 
+#ifdef CONFIG_X86_64
+                c->cpu_core_id = phys_pkg_id(index_msb) &
+                                               ((1 << core_bits) - 1);
+#else
                 c->cpu_core_id = phys_pkg_id(c->initial_apicid, index_msb) &
                                                ((1 << core_bits) - 1);
+#endif
         }
 
 out: