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Commit 20d05927 authored by Alex Deucher's avatar Alex Deucher
Browse files

Revert "drm/amdkfd: avoid HMM change cause circular lock" 



This reverts commit 8dd69e69.

This depends on an HMM fix which is not upstream yet.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 318c3f4b

drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c

+15 −17
Original line number Diff line number Diff line
@@ -1162,17 +1162,21 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q, 
	int retval;

	struct mqd_manager *mqd_mgr;



	retval = 0;



	dqm_lock(dqm);



	if (dqm->total_queue_count >= max_num_of_queues_per_device) {

		pr_warn("Can't create new usermode queue because %d queues were already created\n",

				dqm->total_queue_count);

		retval = -EPERM;

		goto out;

		goto out_unlock;

	}



	if (q->properties.type == KFD_QUEUE_TYPE_SDMA) {

		retval = allocate_sdma_queue(dqm, &q->sdma_id);

		if (retval)

			goto out;

			goto out_unlock;

		q->properties.sdma_queue_id =

			q->sdma_id / get_num_sdma_engines(dqm);

		q->properties.sdma_engine_id =
@@ -1183,9 +1187,6 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q, 
	if (retval)

		goto out_deallocate_sdma_queue;



	/* Do init_mqd before dqm_lock(dqm) to avoid circular locking order:

	 * lock(dqm) -> bo::reserve

	 */

	mqd_mgr = dqm->ops.get_mqd_manager(dqm,

			get_mqd_type_from_queue_type(q->properties.type));
@@ -1193,7 +1194,6 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q, 
		retval = -ENOMEM;

		goto out_deallocate_doorbell;

	}



	/*

	 * Eviction state logic: we only mark active queues as evicted

	 * to avoid the overhead of restoring inactive queues later
@@ -1202,7 +1202,9 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q, 
		q->properties.is_evicted = (q->properties.queue_size > 0 &&

					    q->properties.queue_percent > 0 &&

					    q->properties.queue_address != 0);



	dqm->asic_ops.init_sdma_vm(dqm, q, qpd);



	q->properties.tba_addr = qpd->tba_addr;

	q->properties.tma_addr = qpd->tma_addr;

	retval = mqd_mgr->init_mqd(mqd_mgr, &q->mqd, &q->mqd_mem_obj,
@@ -1210,8 +1212,6 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q, 
	if (retval)

		goto out_deallocate_doorbell;



	dqm_lock(dqm);



	list_add(&q->list, &qpd->queues_list);

	qpd->queue_count++;

	if (q->properties.is_active) {
@@ -1239,7 +1239,9 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q, 
out_deallocate_sdma_queue:

	if (q->properties.type == KFD_QUEUE_TYPE_SDMA)

		deallocate_sdma_queue(dqm, q->sdma_id);

out:

out_unlock:

	dqm_unlock(dqm);



	return retval;

}
@@ -1402,6 +1404,8 @@ static int destroy_queue_cpsch(struct device_queue_manager *dqm, 
			qpd->reset_wavefronts = true;

	}



	mqd_mgr->uninit_mqd(mqd_mgr, q->mqd, q->mqd_mem_obj);



	/*

	 * Unconditionally decrement this counter, regardless of the queue's

	 * type
@@ -1412,9 +1416,6 @@ static int destroy_queue_cpsch(struct device_queue_manager *dqm, 


	dqm_unlock(dqm);



	/* Do uninit_mqd after dqm_unlock(dqm) to avoid circular locking */

	mqd_mgr->uninit_mqd(mqd_mgr, q->mqd, q->mqd_mem_obj);



	return retval;



failed:
@@ -1636,11 +1637,7 @@ static int process_termination_cpsch(struct device_queue_manager *dqm, 
		qpd->reset_wavefronts = false;

	}



	dqm_unlock(dqm);



	/* Lastly, free mqd resources.

	 * Do uninit_mqd() after dqm_unlock to avoid circular locking.

	 */

	/* lastly, free mqd resources */

	list_for_each_entry_safe(q, next, &qpd->queues_list, list) {

		mqd_mgr = dqm->ops.get_mqd_manager(dqm,

			get_mqd_type_from_queue_type(q->properties.type));
@@ -1654,6 +1651,7 @@ static int process_termination_cpsch(struct device_queue_manager *dqm, 
	}



out:

	dqm_unlock(dqm);

	return retval;

}