Nate Lawson 0d4ac62a35 Add an interface for drivers to be notified of changes to CPU frequency. ... cpufreq_pre_change is called before the change, giving each driver a chance to revoke the change. cpufreq_post_change provides the results of the change (success or failure). cpufreq_levels_changed gives the unit number of the cpufreq device whose number of available levels has changed. Hook in all the drivers I could find that needed it. * TSC: update TSC frequency value. When the available levels change, take the highest possible level and notify the timecounter set_cputicker() of that freq. This gets rid of the "calcru: runtime went backwards" messages. * identcpu: updates the sysctl hw.clockrate value * Profiling: if profiling is active when the clock changes, let the user know the results may be inaccurate. Reviewed by: bde, phk MFC after: 1 month		2007-03-26 18:03:29 +00:00
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atpic.c	Evidently FreeBSD has long relied on the compiler to treat structures	2006-12-17 05:07:01 +00:00
atpic_vector.s	Evidently FreeBSD has long relied on the compiler to treat structures	2006-12-17 05:07:01 +00:00
ccbque.h	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 22:18:23 +00:00
clock.c	Partial fix for a bug in rev.1.231. If suspend/resume clobbers the	2007-03-05 09:10:17 +00:00
elcr.c	Tweak the ELCR support slightly. Explicitly probe the ELCR during boot	2005-01-18 20:24:47 +00:00
elink.c	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 22:18:23 +00:00
elink.h	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 22:18:23 +00:00
icu.h	Evidently FreeBSD has long relied on the compiler to treat structures	2006-12-17 05:07:01 +00:00
isa.c	o break newbus api: add a new argument of type driver_filter_t to	2007-02-23 12:19:07 +00:00
isa.h	- Move bus dependent defines to {isa,cbus}_dmareg.h.	2005-05-14 10:14:56 +00:00
isa_dma.c	- Move bus dependent defines to {isa,cbus}_dmareg.h.	2005-05-14 10:14:56 +00:00
nmi.c
npx.c	o break newbus api: add a new argument of type driver_filter_t to	2007-02-23 12:19:07 +00:00
pmtimer.c	First part of a little cleanup in the calendar/timezone/RTC handling.	2006-10-02 12:59:59 +00:00
prof_machdep.c	Add an interface for drivers to be notified of changes to CPU frequency.	2007-03-26 18:03:29 +00:00
spic.c	Since DELAY() was moved, most <machine/clock.h> #includes have been	2006-05-16 14:37:58 +00:00
spicreg.h	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 22:18:23 +00:00
vesa.c	Fix -Wundef warnings found when compiling i386 LINT, GENERIC and	2005-12-05 11:58:35 +00:00