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Subject[PATCH 10/16] x86: cpu common merge detect_ht
Date
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
---
arch/x86/kernel/cpu/common.c | 13 ++++++++++++-
arch/x86/kernel/cpu/common_64.c | 9 +++++++++
2 files changed, 21 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f919120..b2018f7 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:
diff --git a/arch/x86/kernel/cpu/common_64.c b/arch/x86/kernel/cpu/common_64.c
index f7a2d52..7ac0a00 100644
--- a/arch/x86/kernel/cpu/common_64.c
+++ b/arch/x86/kernel/cpu/common_64.c
@@ -349,7 +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;

@@ -357,8 +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:
--
1.5.4.5


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