[PATCH 18/30] drm/amd/display: reprogram surface config on scaling change

Harry Wentland harry.wentland at amd.com
Wed Dec 13 22:34:50 UTC 2017


From: Eric Yang <Eric.Yang2 at amd.com>

When plane size changes, we need to reprogram surface pitch in addition
to viewport and scaler. This change is a conservative way to make this happen.
However it could be more optimized to move pitch programming into
mem_program_viewport.

Signed-off-by: Eric Yang <Eric.Yang2 at amd.com>
Reviewed-by: Andrew Jiang <Andrew.Jiang at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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 ee057de68ed2..824de3630889 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
@@ -1782,7 +1782,8 @@ static void update_dchubp_dpp(
 		plane_state->update_flags.bits.rotation_change ||
 		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.bpp_change ||
+		plane_state->update_flags.bits.scaling_change) {
 		hubp->funcs->hubp_program_surface_config(
 			hubp,
 			plane_state->format,
-- 
2.14.1



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