[Intel-gfx] [PATCH i-g-t] tests: Introduce kms_wm_stress

Chris Wilson chris at chris-wilson.co.uk
Tue Jun 21 07:18:50 UTC 2016


On Mon, Jun 20, 2016 at 07:05:04PM -0700, Matt Roper wrote:
> Stress test watermark programming by programming lots of random
> pipe/plane configurations.  The test itself should always return
> success, but the presence of underrun messages in dmesg will indicate
> watermark programming failures.

Could we expose a per-pipe underrun counter to debugfs?
(And then we could just emit a warning message on the first, but keep on
counting for debug.)
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre


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