HEADSUP: cpufreq merged, acpi_throttle changed
Freddie Cash
fcash at ocis.net
Mon Feb 28 17:42:01 GMT 2005
On February 26, 2005 11:33 am, Nate Lawson wrote:
> To those running 5.x, I wanted to let you know about a change in
> behavior for acpi throttling. It is now accessible through the
> sysctl dev.cpu.0.freq and dev.cpu.0.freq_levels. Also, you can now
> run -current cpufreq.ko or acpi.ko to get more drivers. Those won't
> be in 5.4-R but will be MFCd after the release. Please let me know
> if you have any new problems, especially with throttling.
Just a note to let you know that the latest round of cpufreq.ko and
acpi.ko updates have once again made everything work on my Toshiba A60
laptop. :) Thanks for all the hard work you've done in this area.
A cvsup to 6-CURRENT sources on Friday, and a recompile of the kernel
without CPU_ENABLE_TCC gives me the following set of sysctls:
dev.cpu.0.%desc: ACPI CPU (2 Cx states)
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.CPU0
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.0.freq: 2800
dev.cpu.0.freq_levels: 2800/-1 2450/-1 2100/-1 1750/-1 1400/-1
1050/-1 700/-1 350/-1
dev.p4tcc.0.%parent: cpu0
dev.cpufreq.0.%driver: cpufreq
dev.cpufreq.0.%parent: cpu0
I haven't tested any of the freq_levels yet, but it's nice to see them
listed again. :)
This is with acpi_load="YES" and cpufreq_load="YES" in loader.conf.
--
Freddie Cash
fcash at ocis.net
More information about the freebsd-current
mailing list