[Bug 102410] [BAT][BDW] igt at kms_frontbuffer_tracking@basic - *ERROR* vblank not available for FBC on pipe X

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Aug 26 11:42:39 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=102410

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 908b6e6e8ab4c1e0c3783be4c4b437ac6fa374ea
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Aug 25 16:02:15 2017 +0100

    drm/i915: Quietly cancel FBC activation if CRTC is turned off before worker

    Since we use a worker to enable FBC on the CRTC, it is possible for the
    CRTC to be switched off before we run. In this case, the CRTC will not
    allow us to wait upon a vblank, so remove the DRM_ERROR as this is very
    much expected.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102410
    Fixes: ca18d51d77eb ("drm/i915/fbc: wait for a vblank instead of 50ms when
enabling")
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
    Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20170825150215.19236-1-chris@chris-wilson.co.uk
    Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>

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