[PATCH 04/20] drm/amd/display: Fix wrong index for DCN401 cursor offload

[waynelin <Wayne.Lin@amd.com>]

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[Why]
Payloads are ignored because the wrong index is written as part of the
pipe update implementation for DCN401.

[How]
Align it to the DCN35 implementation and ensure the + 1 is added.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
---
 drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
index 23ecab4bcbba..b9c357a40707 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
@@ -2978,7 +2978,7 @@ void dcn401_update_cursor_offload_pipe(struct dc *dc, const struct pipe_ctx *pip
 		return;
 
 	stream_idx = top_pipe->pipe_idx;
-	write_idx = cs->offload_streams[stream_idx].write_idx;
+	write_idx = cs->offload_streams[stream_idx].write_idx + 1; /*  new payload (+1) */
 	payload_idx = write_idx % ARRAY_SIZE(cs->offload_streams[stream_idx].payloads);
 
 	p = &cs->offload_streams[stream_idx].payloads[payload_idx].pipe_data[pipe->pipe_idx].dcn401;
-- 
2.43.0