Re: [PATCH] drm/i915: Add a timeout to waiting for old reservation.

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On Thu, Jan 19, 2017 at 03:23:12PM +0100, Maarten Lankhorst wrote:
> This prevents hangs in kms_flip. We should also either decrease
> I915_FENCE_TIMEOUT to 5s, or increase the timeouts in
> drm_atomic_helper.c to prevent errors like flip_done/hw_done timed out.
> 
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>

This is a nak. This one *has* to wait until the previous i915 requests
are complete, which is (supposed to be) guaranteed eventually. If later
phases of a modeset are completing before any earlier phase, that sounds
buggy.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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