Messages in this thread | | | From | Marvin <> | Subject | Re: [PATCH 4/6] cpufreq: Add APERF/MPERF support for AMD processors | Date | Thu, 1 Apr 2010 13:46:10 +0200 |
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> From: Marvin <marvin24@gmx.de> > Date: Thu, Apr 01, 2010 at 11:01:04AM +0200 > > > > From: Mark Langsdorf <mark.langsdorf@amd.com> > > > > > > Starting with model 10 of Family 0x10, AMD processors may have > > > support for APERF/MPERF. Add support for identifying it and using > > > it within cpufreq. Move the APERF/MPERF functions out of the > > > acpi-cpufreq code and into their own file so they can easily be > > > shared. > > > > just out of interest: what are the realnames of these processors (>= > > Mangy-Core) ? > > Well, you're going to have to wait and see. Or search the net :)
ok - I take this as "not yet".
> > > > Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> > > > Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> > > > Reviewed-by: Thomas Renninger <trenn@suse.de> > > > --- > > > > > > arch/x86/kernel/cpu/cpufreq/Makefile | 4 +- > > > arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 44 > > > +----------------------- arch/x86/kernel/cpu/cpufreq/mperf.c | > > > 50 > > > > > > ++++++++++++++++++++++++++++ arch/x86/kernel/cpu/cpufreq/mperf.h > > > | > > > > > > 9 +++++ > > > > > > arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 8 ++++ > > > 5 files changed, 71 insertions(+), 44 deletions(-) > > > create mode 100644 arch/x86/kernel/cpu/cpufreq/mperf.c > > > > this file has no copyright or module license, thus tainting my kernel... > > This is not a standalone module but only an auxiliary. How does that > taint your kernel? dmesg, .config please.
I think compiling powernow_k8 as a module is sufficient.
# lsmod | grep powernow powernow_k8 16595 1 mperf 1379 1 powernow_k8 processor 39129 1 powernow_k8
# dmesg | grep -B5 powernow [ 11.676876] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 12.005031] ip_tables: (C) 2000-2006 Netfilter Core Team [ 12.051995] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 12.096556] mperf: module license 'unspecified' taints kernel. [ 12.097906] Disabling lock debugging due to kernel taint [ 12.117403] powernow-k8: Found 1 AMD Phenom(tm) II X4 B55 Processor (4 cpu cores) (version 2.20.00) [ 12.118714] powernow-k8: 0 : pstate 0 (3200 MHz) [ 12.120063] powernow-k8: 1 : pstate 1 (2500 MHz) [ 12.121389] powernow-k8: 2 : pstate 2 (2100 MHz) [ 12.122713] powernow-k8: 3 : pstate 3 (800 MHz)
Marvin
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