Date: Mon, 14 Mar 2005 20:09:06 +0100 From: Bruno Ducrot <ducrot@poupinou.org> To: "Alexander S. Usov" <A.S.Usov@kvi.nl> Cc: freebsd-current@freebsd.org Subject: Re: Using cpufreq Message-ID: <20050314190906.GK2298@poupinou.org> In-Reply-To: <d118pf$pq0$2@sea.gmane.org> References: <d0s9te$e8n$1@sea.gmane.org> <20050311183150.T72922@carver.gumbysoft.com> <d118pf$pq0$2@sea.gmane.org>
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On Sun, Mar 13, 2005 at 12:40:19PM +0100, Alexander S. Usov wrote: > Doug White wrote: > > > On Fri, 11 Mar 2005, Alexander S. Usov wrote: > > > >> Hi! > >> > >> I have upgraded to 5.4-PRERELEASE this weekend, and can't figure out > >> how to use/enable cpufreq framework. > >> > >> With my standart kernel config I have no cpufreq.ko not acpi_perf.ko. > >> Adding "device cpufreq" (mentioned in cpufreq(4)) to the kernel config > >> does not work either. > > > > I don't believe any of the CPU-specific drivers have been ported to > > RELENG_5 yet. You may be able to copy them out of -CURRENT and build them. > > No guarantees. > > Can you suggest what exactly should be copied from there? "somewhere" (~myuser/cpufreq/ for example) do something like this: cvs co src/sys/dev/acpica/acpi_perf.c cvs co -P src/sys/dev/cpufreq cvs co -P src/sys/i386/cpufreq Create two directory: mkdir acpi_perf mkdir cpufreq Then: cp src/sys/dev/acpica/acpi_perf.c acpi_perf/ cp src/sys/dev/cpufreq/*.c cpufreq cp src/sys/i386/cpufreq/*.c cpufreq Remove src (rm -rf src), then for each of directories acpi_perf, cpufreq; create a makefile: For acpi_perf/Makefile: CFLAGS+= -I@/contrib/dev/acpica KMOD= acpi_perf WARNS?= 2 SRCS= acpi_perf.c SRCS+= acpi_if.h bus_if.h cpufreq_if.h device_if.h opt_acpi.h \ pci_if.h .include <bsd.kmod.mk> and for cpufreq/Makefile: KMOD= cpufreq WARNS?= 2 SRCS= ichss.c est.c p4tcc.c SRCS+= bus_if.h cpufreq_if.h device_if.h pci_if.h .include <bsd.kmod.mk> Go to each directories, issue a make install Then try to kldload acpi_perf and kldload cpufreq. If that ok, you may want to add to /boot/loader.conf acpi_perf_load="YES" cpufreq_load="YES" Note that ichss require loading at boot. Note also that you *must* not compile kernel with P4TCC support (or do not include p4tcc.c in the SRCS line in the above Makefile). And if you have a powernow capable processor, you may want to try http://www.poupinou.org/cpufreq/bsd/powernow.tar.gz (which may require acpi_perf sometimes if it failed if the provided BIOS table failed). Hope this help, -- Bruno Ducrot -- Which is worse: ignorance or apathy? -- Don't know. Don't care.
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