53 int kfd_interrupt_init(struct kfd_node *node)  in kfd_interrupt_init()  argument
57 	r = kfifo_alloc(&node->ih_fifo,  in kfd_interrupt_init()
58 		KFD_IH_NUM_ENTRIES * node->kfd->device_info.ih_ring_entry_size,  in kfd_interrupt_init()
61 		dev_err(node->adev->dev, "Failed to allocate IH fifo\n");  in kfd_interrupt_init()
65 	if (!node->kfd->ih_wq) {  in kfd_interrupt_init()
66 		node->kfd->ih_wq = alloc_workqueue("KFD IH", WQ_HIGHPRI | WQ_UNBOUND,  in kfd_interrupt_init()
67 						   node->kfd->num_nodes);  in kfd_interrupt_init()
68 		if (unlikely(!node->kfd->ih_wq)) {  in kfd_interrupt_init()
69 			kfifo_free(&node->ih_fifo);  in kfd_interrupt_init()
70 			dev_err(node->adev->dev, "Failed to allocate KFD IH workqueue\n");  in kfd_interrupt_init()
74 	spin_lock_init(&node->interrupt_lock);  in kfd_interrupt_init()
76 	INIT_WORK(&node->interrupt_work, interrupt_wq);  in kfd_interrupt_init()
78 	node->interrupts_active = true;  in kfd_interrupt_init()
90 void kfd_interrupt_exit(struct kfd_node *node)  in kfd_interrupt_exit()  argument
99 	spin_lock_irqsave(&node->interrupt_lock, flags);  in kfd_interrupt_exit()
100 	node->interrupts_active = false;  in kfd_interrupt_exit()
101 	spin_unlock_irqrestore(&node->interrupt_lock, flags);  in kfd_interrupt_exit()
102 	kfifo_free(&node->ih_fifo);  in kfd_interrupt_exit()
108 bool enqueue_ih_ring_entry(struct kfd_node *node, const void *ih_ring_entry)  in enqueue_ih_ring_entry()  argument
110 	if (kfifo_is_full(&node->ih_fifo)) {  in enqueue_ih_ring_entry()
111 		dev_warn_ratelimited(node->adev->dev, "KFD node %d ih_fifo overflow\n",  in enqueue_ih_ring_entry()
112 				     node->node_id);  in enqueue_ih_ring_entry()
116 	kfifo_in(&node->ih_fifo, ih_ring_entry, node->kfd->device_info.ih_ring_entry_size);  in enqueue_ih_ring_entry()
123 static bool dequeue_ih_ring_entry(struct kfd_node *node, u32 **ih_ring_entry)  in dequeue_ih_ring_entry()  argument
127 	if (kfifo_is_empty(&node->ih_fifo))  in dequeue_ih_ring_entry()
130 	count = kfifo_out_linear_ptr(&node->ih_fifo, ih_ring_entry,  in dequeue_ih_ring_entry()
131 				     node->kfd->device_info.ih_ring_entry_size);  in dequeue_ih_ring_entry()
132 	WARN_ON(count != node->kfd->device_info.ih_ring_entry_size);  in dequeue_ih_ring_entry()
133 	return count == node->kfd->device_info.ih_ring_entry_size;  in dequeue_ih_ring_entry()