[patch 05/39] [PATCH] i386: Move phys_proc_id/early intel workaround to correct function

[Chris Wright]

-stable review patch.  If anyone has any objections, please let us know.
------------------

early_cpu_detect only runs on the BP, but this code needs to run
on all CPUs. This will fix problems with the powernow-k8 driver
on dual core systems and general misdetection of AMD dual core.

Looks like a mismerge somewhere.  Also add a warning comment.

Signed-off-by: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---

 arch/i386/kernel/cpu/common.c |   17 ++++++++++-------
 1 files changed, 10 insertions(+), 7 deletions(-)

--- linux-2.6.15.4.orig/arch/i386/kernel/cpu/common.c
+++ linux-2.6.15.4/arch/i386/kernel/cpu/common.c
@@ -207,7 +207,10 @@ static int __devinit have_cpuid_p(void)
 
 /* Do minimum CPU detection early.
    Fields really needed: vendor, cpuid_level, family, model, mask, cache alignment.
-   The others are not touched to avoid unwanted side effects. */
+   The others are not touched to avoid unwanted side effects.
+
+   WARNING: this function is only called on the BP.  Don't add code here
+   that is supposed to run on all CPUs. */
 static void __init early_cpu_detect(void)
 {
 	struct cpuinfo_x86 *c = &boot_cpu_data;
@@ -239,12 +242,6 @@ static void __init early_cpu_detect(void
 		if (cap0 & (1<<19))
 			c->x86_cache_alignment = ((misc >> 8) & 0xff) * 8;
 	}
-
-	early_intel_workaround(c);
-
-#ifdef CONFIG_X86_HT
-	phys_proc_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
-#endif
 }
 
 void __devinit generic_identify(struct cpuinfo_x86 * c)
@@ -292,6 +289,12 @@ void __devinit generic_identify(struct c
 				get_model_name(c); /* Default name */
 		}
 	}
+
+	early_intel_workaround(c);
+
+#ifdef CONFIG_X86_HT
+	phys_proc_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
+#endif
 }
 
 static void __devinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)

--
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