Ensure update queue new ring buffer is mapped on GPU with correct size.
Decrease queue old ring_bo queue_refcount and increase new ring_bo
queue_refcount.
Signed-off-by: Philip Yang <Philip.Yang@xxxxxxx>
Reviewed-by: Felix Kuehling <felix.kuehling@xxxxxxx>
---
.../amd/amdkfd/kfd_process_queue_manager.c | 32 ++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 8552400d6d47..dda26a7e3c37 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -549,11 +549,41 @@ int pqm_update_queue_properties(struct process_queue_manager *pqm,
struct process_queue_node *pqn;
pqn = get_queue_by_qid(pqm, qid);
- if (!pqn) {
+ if (!pqn || !pqn->q) {
pr_debug("No queue %d exists for update operation\n", qid);
return -EFAULT;
}
+ /*
+ * Update with NULL ring address is used to disable the queue
+ */
+ if (p->queue_address && p->queue_size) {
+ struct kfd_process_device *pdd;
+ struct amdgpu_vm *vm;
+ struct queue *q = pqn->q;
+ int err;
+
+ pdd = kfd_get_process_device_data(q->device, q->process);
+ if (!pdd)
+ return -ENODEV;
+ vm = drm_priv_to_vm(pdd->drm_priv);
+ err = amdgpu_bo_reserve(vm->root.bo, false);
+ if (err)
+ return err;
+
+ if (kfd_queue_buffer_get(vm, (void *)p->queue_address, &p->ring_bo,
+ p->queue_size)) {
+ pr_debug("ring buf 0x%llx size 0x%llx not mapped on GPU\n",
+ p->queue_address, p->queue_size);
+ return -EFAULT;
+ }
+
+ kfd_queue_buffer_put(vm, &pqn->q->properties.ring_bo);
+ amdgpu_bo_unreserve(vm->root.bo);
+
+ pqn->q->properties.ring_bo = p->ring_bo;
+ }
+
pqn->q->properties.queue_address = p->queue_address;
pqn->q->properties.queue_size = p->queue_size;
pqn->q->properties.queue_percent = p->queue_percent;
--
2.43.2
