From cb082781cde8df5e5394623bf653fc3de239ae54 Mon Sep 17 00:00:00 2001
From: Chris Park <chris.park@amd.com>
Date: Fri, 17 Jun 2022 13:21:16 -0400
Subject: drm/amd/display: Indicate stream change on ODM change
Git-commit: 4984dcdc1f78529a0c699c1931971b7bc5e32a04
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849

[Why]
With ODM policy 2 to 1, there exists a new use case
scenario where stream content is unchanged, but ODM
may be used.  When this happens, the stream needs
to be committed with a new pipe setting.
This did not happen due to stream change
detection logic not accounting for ODM.

[How]
Set ODM flag in stream and commit stream when change
in ODM has been detected due to policy change.

Reviewed-by: Samson Tam <Samson.Tam@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++
 drivers/gpu/drm/amd/display/dc/dc_stream.h        | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 1c9ea3842028..838dd002ccd8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1703,6 +1703,9 @@ bool dc_is_stream_unchanged(
 	if (memcmp(&old_stream->audio_info, &stream->audio_info, sizeof(stream->audio_info)) != 0)
 		return false;
 
+	if (old_stream->odm_2to1_policy_applied != stream->odm_2to1_policy_applied)
+		return false;
+
 	return true;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index 2a2f719587ee..c3d97206ed89 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -276,6 +276,8 @@ struct dc_stream_state {
 	bool has_non_synchronizable_pclk;
 	bool vblank_synchronized;
 	struct mall_stream_config mall_stream_config;
+
+	bool odm_2to1_policy_applied;
 };
 
 #define ABM_LEVEL_IMMEDIATE_DISABLE 255
-- 
2.38.1