add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/media/platform/vsp1/vsp1_dl.c
..
..
@@ -178,7 +178,7 @@
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  * @post_cmd: post command to be issued through extended dl header
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  * @has_chain: if true, indicates that there's a partition chain
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  * @chain: entry in the display list partition chain
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- * @internal: whether the display list is used for internal purpose
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+ * @flags: display list flags, a combination of VSP1_DL_FRAME_END_*
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  */
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 struct vsp1_dl_list {
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 	struct list_head list;
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@@ -197,7 +197,7 @@
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 	bool has_chain;
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 	struct list_head chain;
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199
 
200
-	bool internal;
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+	unsigned int flags;
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201
 };
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202
 
203
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 /**
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@@ -703,8 +703,8 @@
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  * which bodies are added.
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  *
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  * Adding a body to a display list passes ownership of the body to the list. The
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- * caller retains its reference to the fragment when adding it to the display
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- * list, but is not allowed to add new entries to the body.
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+ * caller retains its reference to the body when adding it to the display list,
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+ * but is not allowed to add new entries to the body.
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  *
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  * The reference must be explicitly released by a call to vsp1_dl_body_put()
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  * when the body isn't needed anymore.
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..
@@ -774,17 +774,35 @@
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 	}
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775
 
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 	dl->header->num_lists = num_lists;
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+	dl->header->flags = 0;
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778
 
778
-	if (!list_empty(&dl->chain) && !is_last) {
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+	/*
780
+	 * Enable the interrupt for the end of each frame. In continuous mode
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+	 * chained lists are used with one list per frame, so enable the
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+	 * interrupt for each list. In singleshot mode chained lists are used
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+	 * to partition a single frame, so enable the interrupt for the last
784
+	 * list only.
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+	 */
786
+	if (!dlm->singleshot || is_last)
787
+		dl->header->flags |= VSP1_DLH_INT_ENABLE;
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+
789
+	/*
790
+	 * In continuous mode enable auto-start for all lists, as the VSP must
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+	 * loop on the same list until a new one is queued. In singleshot mode
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+	 * enable auto-start for all lists but the last to chain processing of
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+	 * partitions without software intervention.
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+	 */
795
+	if (!dlm->singleshot || !is_last)
796
+		dl->header->flags |= VSP1_DLH_AUTO_START;
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+
798
+	if (!is_last) {
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799
 		/*
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-		 * If this display list's chain is not empty, we are on a list,
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-		 * and the next item is the display list that we must queue for
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-		 * automatic processing by the hardware.
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+		 * If this is not the last display list in the chain, queue the
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+		 * next item for automatic processing by the hardware.
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802
 		 */
784
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 		struct vsp1_dl_list *next = list_next_entry(dl, chain);
785
804
 
786
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 		dl->header->next_header = next->dma;
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-		dl->header->flags = VSP1_DLH_AUTO_START;
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806
 	} else if (!dlm->singleshot) {
789
807
 		/*
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 		 * if the display list manager works in continuous mode, the VSP
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@@ -792,13 +810,6 @@
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 		 * instructed to do otherwise.
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811
 		 */
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 		dl->header->next_header = dl->dma;
795
-		dl->header->flags = VSP1_DLH_INT_ENABLE | VSP1_DLH_AUTO_START;
796
-	} else {
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-		/*
798
-		 * Otherwise, in mem-to-mem mode, we work in single-shot mode
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-		 * and the next display list must not be started automatically.
800
-		 */
801
-		dl->header->flags = VSP1_DLH_INT_ENABLE;
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813
 	}
803
814
 
804
815
 	if (!dl->extension)
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@@ -865,13 +876,15 @@
865
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 	 *
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 	 * If a display list is already pending we simply drop it as the new
867
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 	 * display list is assumed to contain a more recent configuration. It is
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-	 * an error if the already pending list has the internal flag set, as
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-	 * there is then a process waiting for that list to complete. This
870
-	 * shouldn't happen as the waiting process should perform proper
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-	 * locking, but warn just in case.
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+	 * an error if the already pending list has the
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+	 * VSP1_DL_FRAME_END_INTERNAL flag set, as there is then a process
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+	 * waiting for that list to complete. This shouldn't happen as the
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+	 * waiting process should perform proper locking, but warn just in
883
+	 * case.
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 	 */
873
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 	if (vsp1_dl_list_hw_update_pending(dlm)) {
874
-		WARN_ON(dlm->pending && dlm->pending->internal);
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+		WARN_ON(dlm->pending &&
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+			(dlm->pending->flags & VSP1_DL_FRAME_END_INTERNAL));
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 		__vsp1_dl_list_put(dlm->pending);
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 		dlm->pending = dl;
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890
 		return;
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@@ -901,7 +914,7 @@
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914
 	dlm->active = dl;
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915
 }
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916
 
904
-void vsp1_dl_list_commit(struct vsp1_dl_list *dl, bool internal)
917
+void vsp1_dl_list_commit(struct vsp1_dl_list *dl, unsigned int dl_flags)
905
918
 {
906
919
 	struct vsp1_dl_manager *dlm = dl->dlm;
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920
 	struct vsp1_dl_list *dl_next;
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@@ -916,7 +929,7 @@
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929
 		vsp1_dl_list_fill_header(dl_next, last);
917
930
 	}
918
931
 
919
-	dl->internal = internal;
932
+	dl->flags = dl_flags & ~VSP1_DL_FRAME_END_COMPLETED;
920
933
 
921
934
 	spin_lock_irqsave(&dlm->lock, flags);
922
935
 
..
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@@ -945,9 +958,13 @@
945
958
  * set in single-shot mode as display list processing is then not continuous and
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  * races never occur.
947
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  *
948
- * The VSP1_DL_FRAME_END_INTERNAL flag indicates that the previous display list
949
- * has completed and had been queued with the internal notification flag.
950
- * Internal notification is only supported for continuous mode.
961
+ * The following flags are only supported for continuous mode.
962
+ *
963
+ * The VSP1_DL_FRAME_END_INTERNAL flag indicates that the display list that just
964
+ * became active had been queued with the internal notification flag.
965
+ *
966
+ * The VSP1_DL_FRAME_END_WRITEBACK flag indicates that the previously active
967
+ * display list had been queued with the writeback flag.
951
968
  */
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969
 unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
953
970
 {
..
..
@@ -986,13 +1003,24 @@
986
1003
 		goto done;
987
1004
 
988
1005
 	/*
1006
+	 * If the active display list has the writeback flag set, the frame
1007
+	 * completion marks the end of the writeback capture. Return the
1008
+	 * VSP1_DL_FRAME_END_WRITEBACK flag and reset the display list's
1009
+	 * writeback flag.
1010
+	 */
1011
+	if (dlm->active && (dlm->active->flags & VSP1_DL_FRAME_END_WRITEBACK)) {
1012
+		flags |= VSP1_DL_FRAME_END_WRITEBACK;
1013
+		dlm->active->flags &= ~VSP1_DL_FRAME_END_WRITEBACK;
1014
+	}
1015
+
1016
+	/*
989
1017
 	 * The device starts processing the queued display list right after the
990
1018
 	 * frame end interrupt. The display list thus becomes active.
991
1019
 	 */
992
1020
 	if (dlm->queued) {
993
-		if (dlm->queued->internal)
1021
+		if (dlm->queued->flags & VSP1_DL_FRAME_END_INTERNAL)
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1022
 			flags |= VSP1_DL_FRAME_END_INTERNAL;
995
-		dlm->queued->internal = false;
1023
+		dlm->queued->flags &= ~VSP1_DL_FRAME_END_INTERNAL;
996
1024
 
997
1025
 		__vsp1_dl_list_put(dlm->active);
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1026
 		dlm->active = dlm->queued;