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[v5,9/9] v4l: vsp1: Reduce display list body size

Message ID fa58cc7e478813b2e3e8a7e5f646e4c9db844312.1516028582.git-series.kieran.bingham+renesas@ideasonboard.com (mailing list archive)
State New, archived
Headers show

Commit Message

Kieran Bingham Jan. 15, 2018, 4:38 p.m. UTC
The display list originally allocated a body of 256 entries to store all
of the register lists required for each frame.

This has now been separated into fragments for constant stream setup, and
runtime updates.

Empirical testing shows that the body0 now uses a maximum of 41
registers for each frame, for both DRM and Video API pipelines thus a
rounded 64 entries provides a suitable allocation.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
---
 drivers/media/platform/vsp1/vsp1_dl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/media/platform/vsp1/vsp1_dl.c b/drivers/media/platform/vsp1/vsp1_dl.c
index 1fc52496fc13..ce315821b60c 100644
--- a/drivers/media/platform/vsp1/vsp1_dl.c
+++ b/drivers/media/platform/vsp1/vsp1_dl.c
@@ -21,7 +21,7 @@ 
 #include "vsp1.h"
 #include "vsp1_dl.h"
 
-#define VSP1_DL_NUM_ENTRIES		256
+#define VSP1_DL_NUM_ENTRIES		64
 
 #define VSP1_DLH_INT_ENABLE		(1 << 1)
 #define VSP1_DLH_AUTO_START		(1 << 0)