On Sun, 9 Sep 2012 12:42:55 -0700
Ben Widawsky b...@bwidawsk.net wrote:
On the Intel driver we've developed and reviewed some patches which
enable GPU frequency settings in sysfs. Similar interfaces have
existed for some time in our debugfs, but now we're getting interest
from users like PowerTOP and have decided to formalize it. Most
likely other DRM drivers have similar features; and perhaps similar
proposals have gone out in the past.
Boiling down what we've exposed in our patches:
read current GPU frequency
read/write min frequency
read/write max frequency
read HW support lowest frequency (we call this RPn)
read HW supported highest frequency (we call this RP0)
read HW recommended low frequnecy (we call this RP1)
If no interest is perceived we will move forward with these as Intel
only sysfs interfaces.
The Intel specific patches which are ready to go are here:
http://lists.freedesktop.org/archives/intel-gfx/2012-September/020342.html
Thanks.
I was called out for not being clear. I'm asking if there
is interest in making unified knobs in DRM as opposed to driver specific
knobs. Is that even a good idea, and/or make sense to do?
--
Ben Widawsky, Intel Open Source Technology Center
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