diff options
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_dl.c | 23 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_dl.h | 3 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_drm.c | 2 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_video.c | 2 |
4 files changed, 26 insertions, 4 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_dl.c b/drivers/media/platform/vsp1/vsp1_dl.c index 662fa2a..30ad4916 100644 --- a/drivers/media/platform/vsp1/vsp1_dl.c +++ b/drivers/media/platform/vsp1/vsp1_dl.c @@ -72,6 +72,7 @@ struct vsp1_dl_body { * @fragments: list of extra display list bodies * @has_chain: if true, indicates that there's a partition chain * @chain: entry in the display list partition chain + * @internal: whether the display list is used for internal purpose */ struct vsp1_dl_list { struct list_head list; @@ -85,6 +86,8 @@ struct vsp1_dl_list { bool has_chain; struct list_head chain; + + bool internal; }; enum vsp1_dl_mode { @@ -550,8 +553,16 @@ static void vsp1_dl_list_commit_continuous(struct vsp1_dl_list *dl) * case we can't replace the queued list by the new one, as we could * race with the hardware. We thus mark the update as pending, it will * be queued up to the hardware by the frame end interrupt handler. + * + * If a display list is already pending we simply drop it as the new + * display list is assumed to contain a more recent configuration. It is + * an error if the already pending list has the internal flag set, as + * there is then a process waiting for that list to complete. This + * shouldn't happen as the waiting process should perform proper + * locking, but warn just in case. */ if (vsp1_dl_list_hw_update_pending(dlm)) { + WARN_ON(dlm->pending && dlm->pending->internal); __vsp1_dl_list_put(dlm->pending); dlm->pending = dl; return; @@ -581,7 +592,7 @@ static void vsp1_dl_list_commit_singleshot(struct vsp1_dl_list *dl) dlm->active = dl; } -void vsp1_dl_list_commit(struct vsp1_dl_list *dl) +void vsp1_dl_list_commit(struct vsp1_dl_list *dl, bool internal) { struct vsp1_dl_manager *dlm = dl->dlm; struct vsp1_dl_list *dl_child; @@ -598,6 +609,8 @@ void vsp1_dl_list_commit(struct vsp1_dl_list *dl) } } + dl->internal = internal; + spin_lock_irqsave(&dlm->lock, flags); if (dlm->singleshot) @@ -624,6 +637,10 @@ void vsp1_dl_list_commit(struct vsp1_dl_list *dl) * raced with the frame end interrupt. The function always returns with the flag * set in header mode as display list processing is then not continuous and * races never occur. + * + * The VSP1_DL_FRAME_END_INTERNAL flag indicates that the previous display list + * has completed and had been queued with the internal notification flag. + * Internal notification is only supported for continuous mode. */ unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm) { @@ -656,6 +673,10 @@ unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm) * frame end interrupt. The display list thus becomes active. */ if (dlm->queued) { + if (dlm->queued->internal) + flags |= VSP1_DL_FRAME_END_INTERNAL; + dlm->queued->internal = false; + __vsp1_dl_list_put(dlm->active); dlm->active = dlm->queued; dlm->queued = NULL; diff --git a/drivers/media/platform/vsp1/vsp1_dl.h b/drivers/media/platform/vsp1/vsp1_dl.h index cbc2fc5..1a5bbd5 100644 --- a/drivers/media/platform/vsp1/vsp1_dl.h +++ b/drivers/media/platform/vsp1/vsp1_dl.h @@ -21,6 +21,7 @@ struct vsp1_dl_list; struct vsp1_dl_manager; #define VSP1_DL_FRAME_END_COMPLETED BIT(0) +#define VSP1_DL_FRAME_END_INTERNAL BIT(1) void vsp1_dlm_setup(struct vsp1_device *vsp1); @@ -34,7 +35,7 @@ unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm); struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm); void vsp1_dl_list_put(struct vsp1_dl_list *dl); void vsp1_dl_list_write(struct vsp1_dl_list *dl, u32 reg, u32 data); -void vsp1_dl_list_commit(struct vsp1_dl_list *dl); +void vsp1_dl_list_commit(struct vsp1_dl_list *dl, bool internal); struct vsp1_dl_body *vsp1_dl_fragment_alloc(struct vsp1_device *vsp1, unsigned int num_entries); diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c index 541473b..68b1260 100644 --- a/drivers/media/platform/vsp1/vsp1_drm.c +++ b/drivers/media/platform/vsp1/vsp1_drm.c @@ -370,7 +370,7 @@ static void vsp1_du_pipeline_configure(struct vsp1_pipeline *pipe) } } - vsp1_dl_list_commit(dl); + vsp1_dl_list_commit(dl, false); } /* ----------------------------------------------------------------------------- diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c index 4152704..a76a446 100644 --- a/drivers/media/platform/vsp1/vsp1_video.c +++ b/drivers/media/platform/vsp1/vsp1_video.c @@ -437,7 +437,7 @@ static void vsp1_video_pipeline_run(struct vsp1_pipeline *pipe) } /* Complete, and commit the head display list. */ - vsp1_dl_list_commit(pipe->dl); + vsp1_dl_list_commit(pipe->dl, false); pipe->dl = NULL; vsp1_pipeline_run(pipe); |
