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path: root/drivers/cpufreq
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2005-06-21[PATCH] sysfs: (rest) if show/store is missing return -EIODmitry Torokhov1-2/+2
sysfs: fix the rest of the kernel so if an attribute doesn't implement show or store method read/write will return -EIO instead of 0 or -EINVAL or -EPERM. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-01[PATCH] cpufreq-stats driver updatesVenkatesh Pallipadi1-17/+30
Changes to the cpufreq stats driver: * Changes the way P-state transition table looks in /sysfs providing more clear output * Changes the time unit in the output from HZ to clock_t Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] ondemand governor default sampling downfactor as 1Dave Jones1-1/+5
[PATCH] [5/5] ondemand governor default sampling downfactor as 1 Make default sampling downfactor 1. This works better with earlier auto downscaling change in ondemand governor. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] ondemand governor automatic downscalingDave Jones1-92/+25
[PATCH] [4/5] ondemand governor automatic downscaling Here is a change of policy for the ondemand governor. The modification concerns the frequency downscaling. Instead of decreasing to a lower frequency when the CPU usage is under 20%, this new policy automatically scales to the optimal frequency. The optimal frequency being the lowest frequency which provides enough power to not trigger the upscaling policy. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] ondemand,conservative governor idle_tick clean-upDave Jones2-42/+10
[PATCH] [3/5] ondemand,conservative governor idle_tick clean-up Ondemand and conservative governor clean-up, it factorises the idle ticks measurement. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] ondemand,conservative governor store the idle ticks for all cpusDave Jones2-2/+14
[PATCH] [2/5] ondemand,conservative governor store the idle ticks for all cpus Ondemand, conservative governor did not store prev_cpu_idle_up into prev_cpu_idle_down for other CPUs than the current CPU. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] ondemand,conservative minor bug-fix and cleanupDave Jones2-73/+38
[PATCH] [1/5] ondemand,conservative minor bug-fix and cleanup Attached patch fixes some minor issues with Alexander's patch and related cleanup in both ondemand and conservative governor. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] Allow ondemand stepping to be changed by user.Dave Jones1-6/+36
Adds support so that the cpufreq change stepping is no longer fixed at 5% and can be changed dynamically by the user Signed-off-by: Alexander Clouter <alex-kernel@digriz.org.uk> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] Prevents un-necessary cpufreq changes if we are already at min/maxDave Jones1-0/+8
Signed-off-by: Alexander Clouter <alex-kernel@digriz.org.uk> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] Add support to cpufreq_ondemand to ignore 'nice' cpu timeDave Jones1-4/+62
Signed-off-by: Alexander Clouter <alex-kernel@digriz.org.uk> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] Conservative cpufreq governerDave Jones3-0/+634
A new cpufreq module, based on the ondemand one with my additional patches just posted. This one is more suitable for battery environments where its probably more appealing to have the cpu freq gracefully increase and decrease rather than flip between the min and max freq's. N.B. Bruno Ducrot pointed out that the amd64's "do have unacceptable latency between min and max freq transition, due to the step-by-step requirements (200MHz IIRC)"; so AMD64 users would probably benefit from this too. Signed-off-by: Alexander Clouter <alex-kernel@digriz.org.uk> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] make cpufreq_gov_dbs staticDave Jones1-2/+1
This patch makes a needlessly global and EXPORT_SYMBOL'ed struct static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] Add warning comment about default governors.Dave Jones1-0/+4
This comes up time and time again. Until its fixed, place this comment in the Kconfig which should stem the flow of resubmissions. Signed-off-by: Rob Weryk <rjweryk@uwo.ca> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] ondemand: trivial clean-upsDave Jones1-8/+6
Trivial ondemand governor clean-ups: - change from sampling_rate_in_HZ() to the official function usecs_to_jiffies(). - use for_each_online_cpu() to instead of using "if (cpu_online(i))" Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Dave Jones <davej@redhat.com>
2005-06-01[CPUFREQ] cpufreq-core: reduce warning messages.Dave Jones1-4/+4
cpufreq core is printing out messages at KERN_WARNING level that the core recovers from without intervention, and that the system administrator can do nothing about. Patch below reduces the severity of these messages to debug. Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-02[PATCH] cpufreq annoying warning fixBenjamin Herrenschmidt1-3/+4
The cpufreq core patch I sent earlier got only half-applied. I added a flag to let the low level driver disable an annoying warning on suspend/resume that is normal on ppc, but the "resume" part of it wasn't applied. This just adds back that missing bit. The original patch also reworked the resume() function to avoid nesting too many if () statements along the way I did the suspend() one, but I didn't include that in the patch below. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-29[PATCH] Add suspend method to cpufreq coreBenjamin Herrenschmidt1-5/+89
In order to properly fix some issues with cpufreq vs. sleep on PowerBooks, I had to add a suspend callback to the pmac_cpufreq driver. I must force a switch to full speed before sleep and I switch back to previous speed on resume. I also added a driver flag to disable the warnings in suspend/resume since it is expected in this case to have different speed (and I want it to fixup the jiffies properly). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-17Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds9-0/+2937
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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