[PATCH 09/45] drm/amd/display: add plane size change check condition

[sunpeng.li at amd.com]

From: Lewis Huang <Lewis.Huang at amd.com>

[Why]
Driver didn't check plane size and surface size is mismatch.
It will cause pitch data incorrect.

[How]
Add condition to check is plane change and update surface

Signed-off-by: Lewis Huang <Lewis.Huang at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Leo Li <sunpeng.li at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c                  | 6 ++++++
 drivers/gpu/drm/amd/display/dc/dc.h                       | 1 +
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 ++-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 221f253..16b1dc6 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1224,6 +1224,12 @@ static enum surface_update_type get_plane_info_update_type(const struct dc_surfa
 		 */
 		update_flags->bits.bpp_change = 1;
 
+	if (u->plane_info->plane_size.grph.surface_pitch != u->surface->plane_size.grph.surface_pitch
+			|| u->plane_info->plane_size.video.luma_pitch != u->surface->plane_size.video.luma_pitch
+			|| u->plane_info->plane_size.video.chroma_pitch != u->surface->plane_size.video.chroma_pitch)
+		update_flags->bits.plane_size_change = 1;
+
+
 	if (memcmp(&u->plane_info->tiling_info, &u->surface->tiling_info,
 			sizeof(union dc_tiling_info)) != 0) {
 		update_flags->bits.swizzle_change = 1;
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 580f752..b4ad48b 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -445,6 +445,7 @@ union surface_update_flags {
 		uint32_t coeff_reduction_change:1;
 		uint32_t output_tf_change:1;
 		uint32_t pixel_format_change:1;
+		uint32_t plane_size_change:1;
 
 		/* Full updates */
 		uint32_t new_plane:1;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 77f88b5..75d0e53 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2125,7 +2125,8 @@ void update_dchubp_dpp(
 		plane_state->update_flags.bits.swizzle_change ||
 		plane_state->update_flags.bits.dcc_change ||
 		plane_state->update_flags.bits.bpp_change ||
-		plane_state->update_flags.bits.scaling_change) {
+		plane_state->update_flags.bits.scaling_change ||
+		plane_state->update_flags.bits.plane_size_change) {
 		hubp->funcs->hubp_program_surface_config(
 			hubp,
 			plane_state->format,
-- 
2.7.4