Commit e8939c7e authored Jun 29, 2016 by Harshdeep Dhatt Committed by Jonathan Wicks Oct 14, 2016

msm: kgsl: Trigger preemption from preemption complete interrupt



If a high priority context submits while preemption to a lower context
is underway, then preemption to higher context is not  triggered until
either we get a GPU command complete interrupt or another workload
from the higher context is submitted. To avoid this latency,
trigger preemption from the preemption complete interrupt.

CRs-Fixed: 1058401
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>
Change-Id: I0a05df94e7bdd5daadfa0713371a595a06b7bda7

parent 4031d505

drivers/gpu/msm/adreno_a5xx_preempt.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -311,6 +311,8 @@ void a5xx_preempt_callback(struct adreno_device *adreno_dev, int bit)
		adreno_dev->cur_rb->dispatch_q.expires);

		adreno_set_preempt_state(adreno_dev, ADRENO_PREEMPT_NONE);

		a5xx_preemption_trigger(adreno_dev);
		}

		void a5xx_preemption_schedule(struct adreno_device *adreno_dev)