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drm/amdkfd: Deallocate SDMA queues correctly

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Deallocate SDMA queues during abnormal process termination and when
queue creation fails after the SDMA allocation.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Felix Kuehling 2018-03-23 15:30:34 -04:00 committed by Oded Gabbay
parent c70a362687
commit 72a01d231d
1 changed files with 14 additions and 6 deletions
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20
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
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@ -821,13 +821,13 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
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 / CIK_SDMA_QUEUES_PER_ENGINE;
q->properties.sdma_engine_id =
@ -838,7 +838,7 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
if (!mqd) {
retval = -ENOMEM;
goto out;
goto out_deallocate_sdma_queue;
}
dqm->asic_ops.init_sdma_vm(dqm, q, qpd);
@ -848,7 +848,7 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
&q->gart_mqd_addr, &q->properties);
if (retval)
goto out;
goto out_deallocate_sdma_queue;
list_add(&q->list, &qpd->queues_list);
qpd->queue_count++;
@ -869,7 +869,13 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
pr_debug("Total of %d queues are accountable so far\n",
dqm->total_queue_count);
out:
mutex_unlock(&dqm->lock);
return retval;
out_deallocate_sdma_queue:
if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
deallocate_sdma_queue(dqm, q->sdma_id);
out_unlock:
mutex_unlock(&dqm->lock);
return retval;
}
@ -1188,8 +1194,10 @@ static int process_termination_cpsch(struct device_queue_manager *dqm,
/* Clear all user mode queues */
list_for_each_entry(q, &qpd->queues_list, list) {
if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
if (q->properties.type == KFD_QUEUE_TYPE_SDMA) {
dqm->sdma_queue_count--;
deallocate_sdma_queue(dqm, q->sdma_id);
}
if (q->properties.is_active)
dqm->queue_count--;