Chris Wilson a2487174af drm/i915/execlists: Remove the priority "optimisation" ... Originally we set the priority to max upon inserting the request into the execlists queue (and removing it from the scheduler lists). We could then use the prio==INT_MAX as a shortcut within execlists_schedule() to detect the end of the dependency chain. Since commit 1f181225f8 ("drm/i915/execlists: Keep request->priority for its lifetime") this is no longer true as we use the request completion as an indicator the schedule dependency chain is complete instead. (This allows us to then reschedule requests even when its context is in flight.) However, this makes the GEM_BUG_ON() inside execlists_schedule() racy as we may change the rq->prio at the same time. As the assertion is useful, let's keep the assertion and remove the micro-optimisation. Fixes: 1f181225f8 ("drm/i915/execlists: Keep request->priority for its lifetime") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michał Winiarski <michal.winiarski@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171024115501.21033-1-chris@chris-wilson.co.uk Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> (cherry picked from commit 64b80085dd) Signed-off-by: Jani Nikula <jani.nikula@intel.com>		2017-11-09 16:18:13 +02:00
..
drm	drm/i915/execlists: Remove the priority "optimisation"	2017-11-09 16:18:13 +02:00
host1x	gpu: host1x: Fix incorrect comment for channel_request	2017-10-20 14:19:52 +02:00
ipu-v3	gpu: ipu-v3: pre: implement workaround for ERR009624	2017-10-11 12:04:24 +02:00
vga	vgaarb: Factor out EFI and fallback default device selection	2017-10-18 10:04:56 +02:00
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