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DateSun, 13 Jul 2008 08:25:37 +0200
FromIngo Molnar <>
SubjectRe: [PATCH] x86: fix numaq_tsc_disable calling
* Yinghai Lu <yhlu.kernel@gmail.com> wrote:

>  	if (cpu_has_bts)
>  		ptrace_bts_init_intel(c);
> +
> +#ifdef CONFIG_X86_NUMAQ
> +	numaq_tsc_disable();
> +#endif

could you please one more cleanup and hide the CONFIG_X86_NUMAQ in the 
header file, so that we can just call numaq_tsc_disable() without an
#ifdef?

also, that TSC quirk should probably be turned into an explicit quirk 
function pointer initialized by the early-init NUMAQ code and left NULL 
by everything else - like we it on visws. See include/asm-x86/setup.h:

 /*
  * Any setup quirks to be performed?
  */
 extern int (*arch_time_init_quirk)(void);
 extern int (*arch_pre_intr_init_quirk)(void);
 extern int (*arch_intr_init_quirk)(void);
 extern int (*arch_trap_init_quirk)(void);
 extern char * (*arch_memory_setup_quirk)(void);
 extern int (*mach_get_smp_config_quirk)(unsigned int early);
 extern int (*mach_find_smp_config_quirk)(unsigned int reserve);
the goal is to offload all non-standard setup that is not a reasonable 
deviation of some of the major vendors to such a quirk handler. Quirks 
are a lot easier to maintain and a lot easier to think about - they can 
be just by-line functionality to the main body of default behavior.

	Ingo


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