[Bug 86898] often it appears as blurry things, it happens when memory is busy or full 4/5 applications opened

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86898

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |intel-gfx-bugs at lists.freede
                   |                            |sktop.org
          Component|Drivers/DRI/i915            |DRM/Intel
         Resolution|---                         |FIXED
           Assignee|idr at freedesktop.org         |intel-gfx-bugs at lists.freede
                   |                            |sktop.org
            Product|Mesa                        |DRI
         QA Contact|                            |intel-gfx-bugs at lists.freede
                   |                            |sktop.org

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 656bfa3afc14e45e2d9e1624bf60d79b3beb12f2
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Thu Nov 20 09:26:30 2014 +0100

    drm/i915: Pin tiled objects for L-shaped configs

    Let's just throw in the towel on this one and take the cheap way out.

    Based on a patch from Chris Wilson, but checking for a different bit.
    Chris' patch checked for even bank layout, this one here for a magic
    bit. Given the evidence we've gathered (not much) both work I think,
    but checking for the magic bit might be more accurate.

    Anyway, works on my gm45 here.

    For paranoi restrict to gen4 (and mobile), since we've only ever seen
    this on gm45 and i965gm.

    Also add some debugfs output so that we can skip the tiled swapping
    tests properly in these cases.

    v2: Clean up the quirk'ed pin count in free_object to avoid upsetting
    the WARN_ON. Spotted by Chris.

    Cc: Chris Wilson <chris at chris-wilson.co.uk>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=28813
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=45092
    Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
    Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.c

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