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e088e4c9cd
p4-clockmod has a long history of abuse. It pretends to be a CPU frequency scaling driver, even though it doesn't actually change the CPU frequency, but instead just modulates the frequency with wait-states. The biggest misconception is that when running at the lower 'frequency' p4-clockmod is saving power. This isn't the case, as workloads running slower take longer to complete, preventing the CPU from entering deep C states. However p4-clockmod does have a purpose. It can prevent overheating. Having it hooked up to the cpufreq interfaces is the wrong way to achieve cooling however. It should instead be hooked up to ACPI. This diff introduces a means for a cpufreq driver to register with the cpufreq core, but not present a sysfs interface. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Dave Jones <davej@redhat.com> |
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| .. | ||
| cpufreq | ||
| mcheck | ||
| mtrr | ||
| .gitignore | ||
| addon_cpuid_features.c | ||
| amd.c | ||
| bugs_64.c | ||
| bugs.c | ||
| centaur_64.c | ||
| centaur.c | ||
| cmpxchg.c | ||
| common.c | ||
| cpu.h | ||
| cyrix.c | ||
| intel_cacheinfo.c | ||
| intel.c | ||
| Makefile | ||
| mkcapflags.pl | ||
| perfctr-watchdog.c | ||
| powerflags.c | ||
| proc.c | ||
| transmeta.c | ||
| umc.c | ||