diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-04-03 11:51:24 +0100 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2017-04-26 16:27:52 +0300 |
| commit | 1676a2b35cd5a548da17d1106fb0d4d238c0d191 (patch) | |
| tree | b1c8e2f680ab43a1cf119cd49649ab514da63dc1 /drivers/gpu/host1x/syncpt.h | |
| parent | f8a77153b0cb6eef34f16670df678dae49ce3776 (diff) | |
drm/i915: Park the signaler before sleeping
If the signal to park arrives before we sleep, then we need to check
kthread_should_park() before sleeping to avoid missing the signal.
Otherwise, if the signal arrives whilst we are processing completed
requests, we will reset the current->state back to TASK_INTERRUPTIBLE
and so miss the wakeup.
Fixes: fe3288b5da2c ("drm/i915: Park the breadcrumbs signaler across a GPU reset")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170403105124.8969-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
(cherry picked from commit b1becb88268beb72df6495e35d3d76c138d215bb)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/host1x/syncpt.h')
0 files changed, 0 insertions, 0 deletions