[CPUFREQ] architectural pstate driver for powernow-k8

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This patch should apply cleanly to the 2.6.23-git7 kernel.  It changes the
powernow-k8 driver code that deals with 3rd generation Opteron, Phenom,
and later processors to match the architectural pstate driver described
in the AMD64 Architecture Programmer's Manual Volume 2 Chapter 18.  The
initial implementation of the hardware pstate driver for PowerNow!
used some processor-version specific features, and would not be
maintainable in the long term as the processor features changed.
This architectural driver should work on all future AMD processors.
 
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>

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Mark Langsdorf 2007-10-17 16:52:08 -05:00 • committed by Dave Jones

parent 63bd8c48e0

commit c5829cd07e

2 changed files with 29 additions and 81 deletions

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90

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

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20

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

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