New cpufreq framework and drivers
Nate Lawson
nate at root.org
Tue Feb 1 11:03:03 PST 2005
Eric Anderson wrote:
> Nate Lawson wrote:
>
>> Nate Lawson wrote:
>>
>>> Below is the first patch of cpufreq for wider testing. It has the
>>> framework, cpu pseudodriver updates, and two hardware drivers -- ACPI
>>> performance states and SpeedStep-ICH. It has had a lot of testing on
>>> supported hardware but needs wider testing before importing. Other
>>> hardware drivers can be quickly ported to this interface, and I'm
>>> happy to assist their maintainers.
>>>
>>> http://www.root.org/~nate/freebsd/cpufreq.diff
>>
>>
>>
>> Sorry, I'm so familiar with the interface that I forgot to mention how
>> to use it. To test, build a new kernel and modules. Load one or both
>> of acpi_perf.ko and cpufreq.ko at boot time. Type "sysctl dev.cpu" to
>> see the new freq and freq_levels output. If you're a driver
>> maintainer, see sys/cpu.h and speedstep_ich.c or acpi_perf.c for an
>> example how to provide the driver interface.
>>
>
> Will this only work on -current, or also 5.3-stable?
It should work on -stable, modulo any diff fuzz.
--
Nate
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