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| author | Mark Langsdorf | 2010-03-18 18:41:46 +0100 |
|---|---|---|
| committer | H. Peter Anvin | 2010-04-09 23:07:40 +0200 |
| commit | a2fed573f065e526bfd5cbf26e5491973d9e9aaa (patch) | |
| tree | 069ea4932051dd4535de4bf896e09deff836e0b9 /arch/x86/kernel/cpu/cpufreq/mperf.h | |
| parent | x86: Unify APERF/MPERF support (diff) | |
| download | kernel-qcow2-linux-a2fed573f065e526bfd5cbf26e5491973d9e9aaa.tar.gz kernel-qcow2-linux-a2fed573f065e526bfd5cbf26e5491973d9e9aaa.tar.xz kernel-qcow2-linux-a2fed573f065e526bfd5cbf26e5491973d9e9aaa.zip | |
x86, cpufreq: Add APERF/MPERF support for AMD processors
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>
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/mperf.h')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/mperf.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/mperf.h b/arch/x86/kernel/cpu/cpufreq/mperf.h new file mode 100644 index 000000000000..5dbf2950dc22 --- /dev/null +++ b/arch/x86/kernel/cpu/cpufreq/mperf.h @@ -0,0 +1,9 @@ +/* + * (c) 2010 Advanced Micro Devices, Inc. + * Your use of this code is subject to the terms and conditions of the + * GNU general public license version 2. See "COPYING" or + * http://www.gnu.org/licenses/gpl.html + */ + +unsigned int cpufreq_get_measured_perf(struct cpufreq_policy *policy, + unsigned int cpu); |