[Bug 101691] gfx corruption on windowed 3d-apps running on dGPU

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Nov 14 21:56:02 UTC 2017


--- Comment #65 from Jason Ekstrand <jason at jlekstrand.net> ---
The mesa side of this should be fixed in the following commit:

commit d7a19d69ebc032ba7207fc97bc6f10d5bb35bb99
Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Fri Nov 3 15:26:17 2017 -0700

    i965: Use PTE MOCS for all external buffers

    We were already using PTE for all render targets in case one happened to
    get scanned out.  However, this still wasn't 100% correct because there
    are still possibly cases where we may want to texture from an external
    buffer even though we don't know the caching mode.  This can happen, for
    instance, on buffers imported from another GPU via prime.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101691
    Cc: "17.3" <mesa-stable at lists.freedesktop.org>
    Tested-by: Lyude Paul <lyude at redhat.com>
    Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

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