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| author | <jgarzik@pretzel.yyz.us> | 2005-06-03 23:54:56 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-03 23:54:56 -0400 |
| commit | 73561695b2e77473e353a5ae63bab81ed5098d8e (patch) | |
| tree | d039affaa54d38985e41566e4d62e0aa6a170287 /arch/i386/kernel/timers/timer_tsc.c | |
| parent | 6f2f38128170814e151cfedf79532e19cd179567 (diff) | |
| parent | 8be3de3fd8469154a2b3e18a4712032dac5b4a53 (diff) | |
| download | blackbird-op-linux-73561695b2e77473e353a5ae63bab81ed5098d8e.tar.gz blackbird-op-linux-73561695b2e77473e353a5ae63bab81ed5098d8e.zip | |
Automatic merge of /spare/repo/linux-2.6/.git branch HEAD
Diffstat (limited to 'arch/i386/kernel/timers/timer_tsc.c')
| -rw-r--r-- | arch/i386/kernel/timers/timer_tsc.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c index 7926d967be00..180444d87824 100644 --- a/arch/i386/kernel/timers/timer_tsc.c +++ b/arch/i386/kernel/timers/timer_tsc.c @@ -320,6 +320,26 @@ core_initcall(cpufreq_tsc); static inline void cpufreq_delayed_get(void) { return; } #endif +int recalibrate_cpu_khz(void) +{ +#ifndef CONFIG_SMP + unsigned long cpu_khz_old = cpu_khz; + + if (cpu_has_tsc) { + init_cpu_khz(); + cpu_data[0].loops_per_jiffy = + cpufreq_scale(cpu_data[0].loops_per_jiffy, + cpu_khz_old, + cpu_khz); + return 0; + } else + return -ENODEV; +#else + return -ENODEV; +#endif +} +EXPORT_SYMBOL(recalibrate_cpu_khz); + static void mark_offset_tsc(void) { unsigned long lost,delay; |
