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drm/amdkfd: Load mqd to hqd in non-HWS mode

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This patch fixes a bug in DQM, where the MQD of a newly created compute queue
is not loaded to an HQD slot. As a result, the CP never reads packets from this
queue.

This bug happens only in non-HWS (hardware scheduling) mode. In HWS mode, the
CP is responsible of loading MQDs to HQDs slots.

Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ben Goz 2015-01-04 21:46:44 +02:00 committed by Oded Gabbay
parent b64b8afcca
commit 030e416b4f
1 changed files with 12 additions and 0 deletions
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12
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
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@ -272,6 +272,18 @@ static int create_compute_queue_nocpsch(struct device_queue_manager *dqm,
return retval;
}
pr_debug("kfd: loading mqd to hqd on pipe (%d) queue (%d)\n",
q->pipe,
q->queue);
retval = mqd->load_mqd(mqd, q->mqd, q->pipe,
q->queue, q->properties.write_ptr);
if (retval != 0) {
deallocate_hqd(dqm, q);
mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
return retval;
}
return 0;
}