drm/amdkfd: Initialize sdma vm when creating sdma queue

Xihan Zhang · ogabbay · commit 79b066bd76d5 · 2015-05-07T17:38:06.000+03:00
This patch fixes a bug where sdma vm wasn't initialized when
an sdma queue was created in HWS mode.

This caused GPUVM faults to appear on dmesg and it is one of the
causes that SDMA queues are not working.

Signed-off-by: Xihan Zhang &lt;xihan.zhang@amd.com&gt;
Reviewed-by: Ben Goz &lt;ben.goz@amd.comt&gt;
Signed-off-by: Oded Gabbay &lt;oded.gabbay@gmail.com&gt;
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -883,6 +883,8 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
 		return -ENOMEM;
 	}
 
+	init_sdma_vm(dqm, q, qpd);
+
 	retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
 				&q->gart_mqd_addr, &q->properties);
 	if (retval != 0)

Original file line number	Diff line number	Diff line change
`@@ -883,6 +883,8 @@ static int create_queue_cpsch(struct device_queue_manager dqm, struct queue q,`
`883`	`883`	`return -ENOMEM;`
`884`	`884`	`}`
`885`	`885`
	`886`	`+ init_sdma_vm(dqm, q, qpd);`
	`887`	`+`
`886`	`888`	`retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,`
`887`	`889`	`&q->gart_mqd_addr, &q->properties);`
`888`	`890`	`if (retval != 0)`