ACPI PROCESSOR AGGREGATOR DRIVER

But that almost certainly requires the intervention of a real scheduler hacker, and they haven’t yet gotten around to solving the problem. So Shaohua Li went back and implemented this functionality as a driver instead. And that’s where things stand. ACPI thermal zones A thermal zone is defined to include child objects that do the following: For more information, see the following: Optionally, receive notifications of additional temperature threshold crossings:

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Specify thermal thresholds at which actions must be taken: These changes, it seems, were little loved; that was the patch that Peter Zijlstra blocked outright. Our new feedback system is built on GitHub Aggregagor.

The platform can indicate to the operating system that processor cores in the thermal zone should be idled instead of throttled. It’s a bit of a hack, but it gets the job done, and it is not destructive to agrgegator state the way hot-unplugging the CPU would be. Posted Oct 8, Lid device This device describes and reports the status of a clamshell device’s lid.

Intel Processor Vendor-Specific ACPI

When the emergency passes, the thread will go away and normal life resumes. Report the thermal zone’s temperature: For more information, see the following:. It is porcessor that the time on the platform will be consistent when different firmware interfaces are used to procrssor the platform time. These capabilities maintain time-of-day information across system power transitions, and keep track of time even when the platform is turned off.

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When a thermal zone starts to overheat, the operating system can take actions to cool down the devices in the zone.

Control method battery device This device describes, configures, and reports the status of the platform battery. Choose the type you’d like to provide: At least not until we end up having the same issue on some other architecture too, and it turns from a hacky ACPI thing into something more. As I am about to start a project around Linux, realtime with electrical economy in mind, I will both watch and intervene on the subject – for its good I hope: So the ACPI “driver” is in the mainline for now.

You may also leave feedback directly on GitHub.

The ACPI processor aggregator driver

In fact, the only reason the scheduler people even know about aggregxtor is that Len at first tried to do something more invasive, and was shot down. Product feedback Sign in to give documentation feedback.

Patches merged into the mainline carry a number of tags to indicate who wrote them, who reviewed them, etc. The ACPI folks had originally proposed putting some hacks into the scheduler to implement this functionality.

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The ACPI processor aggregator driver. For more information, see section 9.

Identify the devices that are contained in the thermal zone: And that’s where things stand. Posted Oct 16, aggregahor For example, ACPI defines a power button, a sleep button, and system indicators. The pursuit of practicality over aesthetic qualities; a concentration on facts rather than emotions or ideals. For more information, see section 8. For example, a UEFI call to get the time should return the same time that the operating system would get by using the Time and Alarm device.

ACPI Processor Aggregator Drivers Download for Free | Driver Talent

This device describes, configures, and reports the status of the platform battery. And it may stay that way; Linus said: But that almost certainly requires the intervention of a real agyregator hacker, and they haven’t yet gotten around to solving the problem. So Shaohua Li went back and implemented this functionality as a driver instead.

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