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drm/amdkfd: Implement doorbell allocation for SOC15

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Allocate doorbells according to the doorbell routing information on
SOC15 ASICs (Vega10 and later). On older ASICs we continue to use the
queue_id as the doorbell ID to maintain compatibility with the Thunk.

Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
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
2018-04-10 17:33:05 -04:00
committed by Oded Gabbay
parent df03ef9342
commit ef568db792
6 changed files with 139 additions and 17 deletions
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12
drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
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@@ -119,9 +119,6 @@ static int create_cp_queue(struct process_queue_manager *pqm,
/* Doorbell initialized in user space*/
q_properties->doorbell_ptr = NULL;
q_properties->doorbell_off =
kfd_queue_id_to_doorbell(dev, pqm->process, qid);
/* let DQM handle it*/
q_properties->vmid = 0;
q_properties->queue_id = qid;
@@ -248,6 +245,15 @@ int pqm_create_queue(struct process_queue_manager *pqm,
goto err_create_queue;
}
if (q)
/* Return the doorbell offset within the doorbell page
* to the caller so it can be passed up to user mode
* (in bytes).
*/
properties->doorbell_off =
(q->properties.doorbell_off * sizeof(uint32_t)) &
(kfd_doorbell_process_slice(dev) - 1);
pr_debug("PQM After DQM create queue\n");
list_add(&pqn->process_queue_list, &pqm->queues);