anv: make device initialization more asynchronous

With this change, the engine initialization batches are build and
submitted at vkCreateDevice() but the function doesn't wait for them
to complete. Instead we wait at vkDestroyDevice() or whenever another
submission happens on the queue, we check whether the initialization
batch has completed (without waiting) and free it if completed.

Seems to be about 25% reduction time of vkCreateDevice()

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28975>

src/intel/vulkan/anv_queue.c

@@ -119,6 +119,15 @@ anv_queue_init(struct anv_device *device, struct anv_queue *queue,
 void
 anv_queue_finish(struct anv_queue *queue)
 {
+   if (queue->init_submit) {
+      anv_async_submit_wait(queue->init_submit);
+      anv_async_submit_destroy(queue->init_submit);
+   }
+   if (queue->init_companion_submit) {
+      anv_async_submit_wait(queue->init_companion_submit);
+      anv_async_submit_destroy(queue->init_companion_submit);
+   }
+
    if (queue->sync)
       vk_sync_destroy(&queue->device->vk, queue->sync);