Commit 86dbf52d authored Mar 31, 2020 by Chris Wilson

drm/i915: Defer kicking the tasklet until all rescheduling is complete



Since we may kick more than engine, and may kick each one a couple of
times, coalesce the tasklet execution to the end. This also ensures that
we have the chance to run the tasklet immediately after priority
bumping.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331114852.11583-1-chris@chris-wilson.co.uk

parent 9f7ffa29

drivers/gpu/drm/i915/i915_scheduler.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -464,11 +464,15 @@ int i915_sched_node_add_dependency(struct i915_sched_node *node,
		if (!dep)
		return -ENOMEM;

		local_bh_disable();

		if (!__i915_sched_node_add_dependency(node, signal, dep,
		I915_DEPENDENCY_EXTERNAL \|
		I915_DEPENDENCY_ALLOC))
		i915_dependency_free(dep);

		local_bh_enable(); /* kick submission tasklet */

		return 0;
		}

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