Messages in this thread | | | Date | Tue, 28 Jul 2020 22:40:59 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v2] powercap: Add Power Limit4 support |
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Hi!
> Modern Intel Mobile platforms support power limit4 (PL4), which is > the SoC package level maximum power limit (in Watts). It can be used > to preemptively limits potential SoC power to prevent power spikes > from tripping the power adapter and battery over-current protection. > This patch enables this feature by exposing package level peak power > capping control to userspace via RAPL sysfs interface. With this, > application like DTPF can modify PL4 power limit, the similar way > of other package power limit (PL1). > As this feature is not tested on previous generations, here it is > enabled only for the platform that has been verified to work, > for safety concerns.
So what happens when the user sets this too high? Battery on fire? Or just sudden poweroff? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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