Commit c2d78a9b authored Dec 25, 2019 by Chris Wilson

drm/i915/gt: Stop poking at engine->serial at a high level



In record defaults, if we emit a request we expect a context switck on
parking. We need take no further action, so don't even mess with the low
level engine->serial where it is not warranted.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191225230703.2498794-1-chris@chris-wilson.co.uk

parent 41d329e2

drivers/gpu/drm/i915/gt/intel_gt.c

+3 −4

Original line number	Diff line number	Diff line
		@@ -410,14 +410,13 @@ static int __engines_record_defaults(struct intel_gt *gt)
		struct intel_context *ce;
		struct i915_request *rq;

		/* We must be able to switch to something! */
		GEM_BUG_ON(!engine->kernel_context);

		err = intel_renderstate_init(&so, engine);
		if (err)
		goto out;

		/* We must be able to switch to something! */
		GEM_BUG_ON(!engine->kernel_context);
		engine->serial++; /* force the kernel context switch */

		ce = intel_context_create(engine);
		if (IS_ERR(ce)) {
		err = PTR_ERR(ce);

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