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| author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2009-10-25 19:45:57 +0100 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2009-11-24 19:33:33 +0100 |
| commit | db2820dd5445a44b4726f15a2bc89b9ded2503eb (patch) | |
| tree | d33d14e54b6cd9d0f2931a34667dd534025bdd58 /Documentation/ABI/testing | |
| parent | [CPUFREQ] cpumask: don't put a cpumask on the stack in x86...cpufreq/powernow... (diff) | |
| download | linux-db2820dd5445a44b4726f15a2bc89b9ded2503eb.tar.xz linux-db2820dd5445a44b4726f15a2bc89b9ded2503eb.zip | |
[CPUFREQ] powernow-k6: set transition latency value so ondemand governor can be used
Set the transition latency to value smaller than CPUFREQ_ETERNAL so
governors other than "performance" work (like the "ondemand" one).
The value is found in "AMD PowerNow! Technology Platform Design Guide for
Embedded Processors" dated December 2000 (AMD doc #24267A). There is the
answer to one of FAQs on page 40 which states that suggested complete transition
period is 200 us.
Tested on K6-2+ CPU with K6-3 core (model 13, stepping 4).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'Documentation/ABI/testing')
0 files changed, 0 insertions, 0 deletions