Daniel Vetter f928543404 drm: Fix deadlock retry loop in page_flip_ioctl ... I failed to properly onion-wrap the unwind code: We acquire the vblank reference before we start with the wait-wound locking dance, hence we must make sure we retry before we drop the reference. Oops. v2: The vblank_put must be after the frambuffer_put (Michel). I suck at unwrapping code that doesn't use separate labels for each stage, but checks each pointer first ... While re-reading everything I also realized that we must clean up the fb refcounts, and specifically plane->old_fb before we drop the locks, either in the final unlocking, or in the w/w retry path. Hence the correct fix is to drop the vblank_put to the very bottom. Fixes: 29dc0d1de1 ("drm: Roll out acquire context for the page_flip ioctl") Cc: Harry Wentland <harry.wentland@amd.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Reported-by: Tommi Rantala <tt.rantala@gmail.com> Cc: Tommi Rantala <tt.rantala@gmail.com> Cc: Michel Dänzer <michel@daenzer.net> Tested-by: Tommi Rantala <tt.rantala@gmail.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170522135945.28831-1-daniel.vetter@ffwll.ch		2017-05-23 09:39:14 +02:00
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drm	drm: Fix deadlock retry loop in page_flip_ioctl	2017-05-23 09:39:14 +02:00
host1x	gpu: host1x: select IOMMU_IOVA	2017-05-18 10:41:28 -04:00
ipu-v3	gpu: ipu-v3: don't depend on DRM being enabled	2017-04-04 10:58:56 +02:00
vga	Pointer for Markus's image conversion work.	2017-03-14 15:07:33 +01:00
Makefile