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| author | Andi Kleen <ak@suse.de> | 2008-01-30 13:33:20 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:20 +0100 |
| commit | 404ee5b14b68d3cba287c2596588b83790c49f7b (patch) | |
| tree | 6007a5d2c461c3435edbc9335c84ff45ec4715ca /arch/x86/kernel/cpu | |
| parent | 8424950b5e85543a494b5d940bb2f5f9f16f56a9 (diff) | |
| download | blackbird-op-linux-404ee5b14b68d3cba287c2596588b83790c49f7b.tar.gz blackbird-op-linux-404ee5b14b68d3cba287c2596588b83790c49f7b.zip | |
x86: convert TSC disabling to generic cpuid disable bitmap
Fix from: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 9 |
2 files changed, 1 insertions, 10 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index a96abd453e0d..9b95edcfc6ae 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -154,7 +154,7 @@ static void __init check_config(void) * If we configured ourselves for a TSC, we'd better have one! */ #ifdef CONFIG_X86_TSC - if (!cpu_has_tsc && !tsc_disable) + if (!cpu_has_tsc) panic("Kernel compiled for Pentium+, requires TSC feature!"); #endif diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index c66991a04a8a..dfc9563fc4f0 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -446,10 +446,6 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) * we do "generic changes." */ - /* TSC disabled? */ - if ( tsc_disable ) - clear_bit(X86_FEATURE_TSC, c->x86_capability); - /* If the model name is still unset, do table lookup. */ if ( !c->x86_model_id[0] ) { char *p; @@ -650,11 +646,6 @@ void __cpuinit cpu_init(void) if (cpu_has_vme || cpu_has_tsc || cpu_has_de) clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE); - if (tsc_disable && cpu_has_tsc) { - printk(KERN_NOTICE "Disabling TSC...\n"); - /**** FIX-HPA: DOES THIS REALLY BELONG HERE? ****/ - clear_bit(X86_FEATURE_TSC, boot_cpu_data.x86_capability); - } load_idt(&idt_descr); switch_to_new_gdt(); |
