[PATCH 2/2] drm/amdkfd: Fix SDMA queue init. in non-HWS mode

[Oded Gabbay]

From: Ben Goz <ben....@amd.com>

This patch fixes the SDMA queue initialization, when running in non-HWS mode.

The first fix is to move the initialization of SDMA VM parameters before the
initialization of the SDMA MQD.

The second fix is to load the MQD to an HQD after the initialization of the MQD.

Signed-off-by: Ben Goz <ben.goz at amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 910ff8a..d8135ad 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -645,6 +645,7 @@ static int create_sdma_queue_nocpsch(struct 
device_queue_manager *dqm,
        pr_debug("     sdma queue id: %d\n", q->properties.sdma_queue_id);
        pr_debug("     sdma engine id: %d\n", q->properties.sdma_engine_id);

+       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) {
@@ -652,7 +653,14 @@ static int create_sdma_queue_nocpsch(struct 
device_queue_manager *dqm,
                return retval;
        }

-       init_sdma_vm(dqm, q, qpd);
+       retval = mqd->load_mqd(mqd, q->mqd, 0,
+                               0, NULL);
+       if (retval != 0) {
+               deallocate_sdma_queue(dqm, q->sdma_id);
+               mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
+               return retval;
+       }
+
        return 0;
 }

-- 
1.9.1