dlm->pending = NULL;
}
+struct vsp1_dl_body *vsp1_dlm_dl_body_get(struct vsp1_dl_manager *dlm)
+{
+ return vsp1_dl_body_get(dlm->pool);
+}
+
struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
unsigned int index,
unsigned int prealloc)
* Initialize the display list body and allocate DMA memory for the body
* and the optional header. Both are allocated together to avoid memory
* fragmentation, with the header located right after the body in
- * memory.
+ * memory. An extra body is allocated on top of the prealloc to account
+ * for the cached body used by the vsp1_pipeline object.
*/
header_size = dlm->mode == VSP1_DL_MODE_HEADER
? ALIGN(sizeof(struct vsp1_dl_header), 8)
: 0;
- dlm->pool = vsp1_dl_body_pool_create(vsp1, prealloc,
+ dlm->pool = vsp1_dl_body_pool_create(vsp1, prealloc + 1,
VSP1_DL_NUM_ENTRIES, header_size);
if (!dlm->pool)
return NULL;
struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
struct vsp1_entity *entity;
struct vsp1_dl_body *dlb;
+ struct vsp1_dl_list *dl;
unsigned int partition;
- if (!pipe->dl)
- pipe->dl = vsp1_dl_list_get(pipe->output->dlm);
+ dl = vsp1_dl_list_get(pipe->output->dlm);
- dlb = vsp1_dl_list_get_body0(pipe->dl);
+ /*
+ * If the VSP hardware isn't configured yet (which occurs either when
+ * processing the first frame or after a system suspend/resume), add the
+ * cached stream configuration to the display list to perform a full
+ * initialisation.
+ */
+ if (!pipe->configured)
+ vsp1_dl_list_add_body(dl, pipe->stream_config);
+
+ dlb = vsp1_dl_list_get_body0(dl);
list_for_each_entry(entity, &pipe->entities, list_pipe)
- vsp1_entity_configure_frame(entity, pipe, pipe->dl, dlb);
+ vsp1_entity_configure_frame(entity, pipe, dl, dlb);
/* Run the first partition. */
- vsp1_video_pipeline_run_partition(pipe, pipe->dl, 0);
+ vsp1_video_pipeline_run_partition(pipe, dl, 0);
/* Process consecutive partitions as necessary. */
for (partition = 1; partition < pipe->partitions; ++partition) {
- struct vsp1_dl_list *dl;
+ struct vsp1_dl_list *dl_next;
- dl = vsp1_dl_list_get(pipe->output->dlm);
+ dl_next = vsp1_dl_list_get(pipe->output->dlm);
/*
* An incomplete chain will still function, but output only
* the partitions that had a dl available. The frame end
* interrupt will be marked on the last dl in the chain.
*/
- if (!dl) {
+ if (!dl_next) {
dev_err(vsp1->dev, "Failed to obtain a dl list. Frame will be incomplete\n");
break;
}
- vsp1_video_pipeline_run_partition(pipe, dl, partition);
- vsp1_dl_list_add_chain(pipe->dl, dl);
+ vsp1_video_pipeline_run_partition(pipe, dl_next, partition);
+ vsp1_dl_list_add_chain(dl, dl_next);
}
/* Complete, and commit the head display list. */
- vsp1_dl_list_commit(pipe->dl, false);
- pipe->dl = NULL;
+ vsp1_dl_list_commit(dl, false);
+ pipe->configured = true;
vsp1_pipeline_run(pipe);
}
static int vsp1_video_setup_pipeline(struct vsp1_pipeline *pipe)
{
struct vsp1_entity *entity;
- struct vsp1_dl_body *dlb;
int ret;
/* Determine this pipelines sizes for image partitioning support. */
if (ret < 0)
return ret;
- /* Prepare the display list. */
- pipe->dl = vsp1_dl_list_get(pipe->output->dlm);
- if (!pipe->dl)
- return -ENOMEM;
-
- /* Retrieve the default DLB from the list. */
- dlb = vsp1_dl_list_get_body0(pipe->dl);
-
if (pipe->uds) {
struct vsp1_uds *uds = to_uds(&pipe->uds->subdev);
}
}
+ /*
+ * Compute and cache the stream configuration into a body. The cached
+ * body will be added to the display list by vsp1_video_pipeline_run()
+ * whenever the pipeline needs to be fully reconfigured.
+ */
+ pipe->stream_config = vsp1_dlm_dl_body_get(pipe->output->dlm);
+ if (!pipe->stream_config)
+ return -ENOMEM;
+
list_for_each_entry(entity, &pipe->entities, list_pipe) {
- vsp1_entity_route_setup(entity, pipe, dlb);
- vsp1_entity_configure_stream(entity, pipe, dlb);
+ vsp1_entity_route_setup(entity, pipe, pipe->stream_config);
+ vsp1_entity_configure_stream(entity, pipe, pipe->stream_config);
}
return 0;
{
lockdep_assert_held(&pipe->lock);
+ /* Release any cached configuration from our output video. */
+ vsp1_dl_body_put(pipe->stream_config);
+ pipe->stream_config = NULL;
+ pipe->configured = false;
+
/* Release our partition table allocation */
kfree(pipe->part_table);
pipe->part_table = NULL;
-
- vsp1_dl_list_put(pipe->dl);
- pipe->dl = NULL;
}
static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count)
if (pipe == NULL)
continue;
+ /*
+ * The hardware may have been reset during a suspend and will
+ * need a full reconfiguration.
+ */
+ pipe->configured = false;
+
spin_lock_irqsave(&pipe->irqlock, flags);
if (vsp1_pipeline_ready(pipe))
vsp1_video_pipeline_run(pipe);