[Intel-gfx] [PATCH 1/4] drm/i915: Increase PSR Idle Frame to 2.

Daniel Vetter daniel at ffwll.ch
Mon Sep 15 11:08:40 CEST 2014


On Fri, Sep 12, 2014 at 05:29:44PM -0700, Rodrigo Vivi wrote:
> Please ignore this full series here.
> 
> I have a better one that let PSR on HSW in a better stage with only 1 idle
> frame and without changing the 100ms. Actually if we are brave we can
> reduce this to 24 or less. The new work is currently under
> http://cgit.freedesktop.org/~vivijim/drm-intel/log/?h=psr-3.18
> However I'm not going to send yet because on BDW it got works. It seems BDW
> doesn't like to get PSR enabled immediatelly. So I'm justs sendint new
> series after I'm confortable that PSR is in a better stage for both HSW and
> BDW.

How does this interact with the improved psr crc capture code? And if we
aim for perfect we should be able to get the delay for the reenable for
down to 0. 24ms is still about 1.5 frames ...

But sounding much better indeed now, nice work!
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch



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