Ville Syrjälä 5feba0e905 drm/i915: Fix overlay frontbuffer tracking ... We don't have a persistent fb holding a reference to the frontbuffer object, so every time we do the get+put we throw the frontbuffer object immediately away. And so the next time around we get a pristine frontbuffer object with bits==0 even for the old vma. This confuses the frontbuffer tracking code which understandably expects the old frontbuffer to have the overlay's bit set. Fix this by hanging on to the frontbuffer reference until the next flip. And just to make this a bit more clear let's track the frontbuffer explicitly instead of just grabbing it via the old vma. Cc: stable@vger.kernel.org Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1136 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210209021918.16234-2-ville.syrjala@linux.intel.com Fixes: 8e7cb1799b ("drm/i915: Extract intel_frontbuffer active tracking") Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit 553c23bdb4) Signed-off-by: Jani Nikula <jani.nikula@intel.com>		2021-02-10 11:03:56 +02:00
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drm	drm/i915: Fix overlay frontbuffer tracking	2021-02-10 11:03:56 +02:00
host1x	gpu/host1x: bus: Add missing description for 'driver'	2020-11-05 22:12:55 +01:00
ipu-v3	gpu: ipu-v3: remove unused functions	2020-10-26 10:42:38 +01:00
trace
vga	pci-v5.11-changes	2020-12-15 16:49:59 -08:00
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