diff options
| author | Andi Kleen <ak@suse.de> | 2006-02-13 10:34:30 +0100 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2006-03-01 14:36:32 -0800 |
| commit | bcf2887b1416a506e3461c504642a1b7fad52ddc (patch) | |
| tree | e9c15ebb965647f3a48c584925d304a3c2aa0791 | |
| parent | 2c16bdb60935bebd25fbcc5787e91670c5a8a4ba (diff) | |
[PATCH] i386: Move phys_proc_id/early intel workaround to correct function
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@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | arch/i386/kernel/cpu/common.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 31e344b26bae..a80ef1dc1a3b 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/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 cpuinfo_x86 * 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) |