user/sven/linux.git/include/acpi/processor.h, branch v3.10.44

ACPI / PM: Move processor suspend/resume to syscore_ops

2013-05-12T12:03:14Z

The system suspend routine of the ACPI processor driver saves the BUS_MASTER_RLD register and its resume routine restores it. However, there can be only one such register in the system and it really should be saved after non-boot CPUs have been offlined and restored before they are put back online during resume. For this reason, move the saving and restoration of BUS_MASTER_RLD to syscore suspend and syscore resume, respectively, and drop the no longer necessary suspend/resume callbacks from the ACPI processor driver. Signed-off-by: Rafael J. Wysocki

acpi: Export the acpi_processor_get_performance_info

2013-03-06T15:00:34Z

The git commit d5aaffa9dd531c978c6f3fea06a2972653bd7fc8 (cpufreq: handle cpufreq being disabled for all exported function) tightens the cpufreq API by returning errors when disable_cpufreq() had been called. The problem we are hitting is that the module xen-acpi-processor which uses the ACPI's functions: acpi_processor_register_performance, acpi_processor_preregister_performance, and acpi_processor_notify_smm fails at acpi_processor_register_performance with -22. Note that earlier during bootup in arch/x86/xen/setup.c there is also an call to cpufreq's API: disable_cpufreq(). This is b/c we want the Linux kernel to parse the ACPI data, but leave the cpufreq decisions to the hypervisor. In v3.9 all the checks that d5aaffa9dd531c978c6f3fea06a2972653bd7fc8 added are now hit and the calls to cpufreq_register_notifier will now fail. This means that acpi_processor_ppc_init ends up printing: "Warning: Processor Platform Limit not supported" and the acpi_processor_ppc_status is not set. The repercussions of that is that the call to acpi_processor_register_performance fails right away at: if (!(acpi_processor_ppc_status & PPC_REGISTERED)) and we don't progress any further on parsing and extracting the _P* objects. The only reason the Xen code called that function was b/c it was exported and the only way to gather the P-states. But we can also just make acpi_processor_get_performance_info be exported and not use acpi_processor_register_performance. This patch does so. Acked-by: Rafael J. Wysocki Signed-off-by: Konrad Rzeszutek Wilk

cpuidle / ACPI : move cpuidle_device field out of the acpi_processor_power structure

2012-09-17T21:01:56Z

Currently we have the cpuidle_device field in the acpi_processor_power structure. This adds a dependency between processor.h and cpuidle.h Although it is not a real problem, removing this dependency has the benefit of separating a bit more the cpuidle code from the rest of the acpi code. Also, the compilation should be a bit improved because we do no longer include cpuidle.h in processor.h. The preprocessor was generating 30418 loc and with this patch it generates 30256 loc for processor_thermal.c, a file which is not concerned at all by cpuidle, like processor_perflib.c and processor_throttling.c. That may sound ridiculous, but "small streams make big rivers" :P This patch moves this field into a static global per cpu variable like what is done in the intel_idle driver. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki

ACPI / processor: remove unused function parameter

2012-09-15T20:42:54Z

The 'device' parameter is not used neither in acpi_processor_power_init and acpi_processor_power_exit. This patch removes it. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki

cpuidle / ACPI : remove power from acpi_processor_cx structure

2012-09-05T13:13:48Z

Remove the unused power field from struct struct acpi_processor_cx. [rjw: Modified changelog.] Signed-off-by: Daniel Lezcano Acked-by: Konrad Rzeszutek Wilk Signed-off-by: Rafael J. Wysocki

Merge branch 'pm-acpi'

2012-07-18T22:03:35Z

* pm-acpi: (24 commits) olpc-xo15-sci: Use struct dev_pm_ops for power management ACPI / PM: Drop PM callbacks from the ACPI bus type ACPI / PM: Drop legacy driver PM callbacks that are not used any more ACPI / PM: Do not execute legacy driver PM callbacks acpi_power_meter: Use struct dev_pm_ops for power management fujitsu-tablet: Use struct dev_pm_ops for power management classmate-laptop: Use struct dev_pm_ops for power management xo15-ebook: Use struct dev_pm_ops for power management toshiba_bluetooth: Use struct dev_pm_ops for power management panasonic-laptop: Use struct dev_pm_ops for power management sony-laptop: Use struct dev_pm_ops for power management hp_accel: Use struct dev_pm_ops for power management toshiba_acpi: Use struct dev_pm_ops for power management ACPI: Use struct dev_pm_ops for power management in the SBS driver ACPI: Use struct dev_pm_ops for power management in the power driver ACPI: Use struct dev_pm_ops for power management in the button driver ACPI: Use struct dev_pm_ops for power management in the battery driver ACPI: Use struct dev_pm_ops for power management in the AC driver ACPI: Use struct dev_pm_ops for power management in processor driver ACPI: Use struct dev_pm_ops for power management in the thermal driver ...

cpuilde / ACPI: remove time from acpi_processor_cx structure

2012-07-17T20:16:04Z

Remove the time field as it is not used. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki

cpuidle / ACPI: remove usage from acpi_processor_cx structure

2012-07-17T20:16:00Z

Remove the usage field as it is not used. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki

cpuidle / ACPI : remove latency_ticks from acpi_processor_cx structure

2012-07-17T20:15:24Z

Remove the latency_ticks field as it is not used. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki

ACPI: Use struct dev_pm_ops for power management in processor driver

2012-07-01T11:31:00Z

Make the ACPI processor driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: Rafael J. Wysocki