Commit 55414ad5 authored Jan 09, 2020 by Nirmoy Das Committed by Alex Deucher Jan 16, 2020

drm/amdgpu: error out on entity with no run queue



Disabled HW IP's entity initialized with NULL rq. We should not
process any submit request from userspace for a disabled HW IP.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 8eee00f6

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -909,6 +909,11 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
		if (parser->entity && parser->entity != entity)
		return -EINVAL;

		/* Return if there is no run queue associated with this entity.
		* Possibly because of disabled HW IP*/
		if (entity->rq == NULL)
		return -EINVAL;

		parser->entity = entity;

		ring = to_amdgpu_ring(entity->rq->sched);

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