Date: Tue, 08 Feb 2005 08:21:30 -0800 From: Nate Lawson <nate@root.org> To: "Michael W. Oliver" <michael@gargantuan.com> Cc: amd64@freebsd.org Subject: Re: HEADSUP: cpufreq import complete, acpi_throttling changed Message-ID: <4208E70A.4040001@root.org> In-Reply-To: <20050208142310.GA24565@gargantuan.com> References: <42068A5C.1030300@root.org> <20050208142310.GA24565@gargantuan.com>
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Michael W. Oliver wrote: > On 2005-02-06T13:21:32-0800, Nate Lawson wrote: > >>I've finished the major work of importing cpufreq. As part of this, the >>sysctls for acpi throttling have been removed. The power_profile script >>has been updated, so you can use performance/economy_cpu_freq= in >>rc.conf to set AC on/offline cpu frequencies. The acpi throttling >>support has been compiled into acpi_perf.ko so load that to get >>throttling. Do a sysctl dev.cpu to get an understanding of the cpufreq >>sysctls. > > > Nate, > > Thanks for the hard work on cpufreq! I am running an AMD64 3400 CPU in > my lappy, and I don't see any difference in dev.cpu with cpufreq and/or > acpi_perf loaded. This is all I have: > > 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 > > The above is the same for the following conditions: > > o cpufreq AND acpi_perf NOT loaded > o cpufreq (without acpi_perf) loaded > o acpi_perf (without cpufreq) loaded > o cpufreq AND acpi_perf loaded > > The acpi_ppc module does continue to work for me, however, yielding the > following additional OIDs from hw.acpi: A powernow driver will be imported at some point. I hope the maintainer will do this and it looks like he might but I'll let him speak for himself. Once that's in, your functionality will appear. > Also, I had to build the cpufreq and acpi_perf modules manually, as they > weren't built automatically. Maybe they aren't "connected" to the build > for AMD64? Another developer unhooked them from the build because of a temporary build problem. Since there's no useful driver for amd64 yet, I'll wait until more are imported to hook it back up to the build. Thanks, -- Nate
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