Messages in this thread Patch in this message | | | Subject | Re: [ACPI] X86_PM_TIMER: /proc/cpuinfo doesn't get updated | From | john stultz <> | Date | Tue, 16 Mar 2004 15:28:15 -0800 |
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On Tue, 2004-03-16 at 13:42, Karol Kozimor wrote: > Thus wrote Daniele Venzano: > > > I have a notebook with an Athlon-M CPU. I tried linux 2.6.4 with > > > CONFIG_X86_PM_TIMER=y and I noticed that /proc/cpuinfo doesn't get > > > updated when I switch frequency (via sysfs, using powernow-k7). The is > > > issue seems cosmetic only, CPU frequency changes (watching > > > temperature/battery life). > > I can confirm, I'm seeing the same behavior. Please note that the > > bogomips count gets updated, it's only the frequency that doesn't > > change. > > Same here with a P4-M, follow-up to John and Dmitry.
Hmm. This is untested, but I think this should do the trick.
Dominik: Is there any reason I'm not seeing why cpu_khz should only be updated when using the TSC?
thanks -john
===== arch/i386/kernel/timers/timer_tsc.c 1.36 vs edited ===== --- 1.36/arch/i386/kernel/timers/timer_tsc.c Tue Feb 3 21:35:49 2004 +++ edited/arch/i386/kernel/timers/timer_tsc.c Tue Mar 16 15:23:49 2004 @@ -360,8 +360,8 @@ if (variable_tsc) cpu_data[freq->cpu].loops_per_jiffy = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new); #ifndef CONFIG_SMP + cpu_khz = cpufreq_scale(cpu_khz_ref, ref_freq, freq->new); if (use_tsc) { - cpu_khz = cpufreq_scale(cpu_khz_ref, ref_freq, freq->new); if (variable_tsc) { fast_gettimeoffset_quotient = cpufreq_scale(fast_gettimeoffset_ref, freq->new, ref_freq); set_cyc2ns_scale(cpu_khz/1000);
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