x86, cpufreq: Add APERF/MPERF support for AMD processors

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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.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
LKML-Reference: <20100401141956.GA1930@aftab>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

...

This commit is contained in:

Mark Langsdorf 2010-03-18 18:41:46 +01:00 • committed by H. Peter Anvin

parent d65ad45cd8

commit a2fed573f0

5 changed files with 72 additions and 44 deletions

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4

arch/x86/kernel/cpu/cpufreq/Makefile

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44

arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c

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51

arch/x86/kernel/cpu/cpufreq/mperf.c

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9

arch/x86/kernel/cpu/cpufreq/mperf.h

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8

arch/x86/kernel/cpu/cpufreq/powernow-k8.c

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