From 051cd5bf0cee289e90b99c25c9ba546a27e34be0 Mon Sep 17 00:00:00 2001
From: Samson Tam <Samson.Tam@amd.com>
Date: Thu, 31 Oct 2019 15:27:28 -0400
Subject: drm/amd/display: revert change causing DTN hang for RV
Git-commit: be32c9891c13fe26e9f7fb4020b2adc40ca2dec3
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

[Why]
Hanging on RV for DTN driver verifier

[How]
Roll back change and investigate further

Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 27 ------------------------
 1 file changed, 27 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index c3a315f1d5f8..7f796a4c73d4 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1747,37 +1747,12 @@ static struct dc_stream_status *stream_get_status(
 
 static const enum surface_update_type update_surface_trace_level = UPDATE_TYPE_FULL;
 
-static void validate_dcc_with_meta_address(
-	struct dc_plane_dcc_param *dcc,
-	struct dc_plane_address *address)
-{
-	if ((address->grph.meta_addr.quad_part == 0) &&
-		dcc->enable) {
-		ASSERT(!dcc->enable);
-		dcc->enable = false;
-	} else if ((address->grph.meta_addr.quad_part != 0) &&
-		!dcc->enable)
-		dcc->enable = true;
-
-	if (address->type != PLN_ADDR_TYPE_GRAPHICS) {
-		if ((address->grph_stereo.right_meta_addr.quad_part == 0) &&
-			dcc->enable) {
-			ASSERT(!dcc->enable);
-			dcc->enable = false;
-		} else if ((address->grph_stereo.right_meta_addr.quad_part != 0) &&
-			!dcc->enable)
-			dcc->enable = true;
-	}
-}
-
 static void copy_surface_update_to_plane(
 		struct dc_plane_state *surface,
 		struct dc_surface_update *srf_update)
 {
 	if (srf_update->flip_addr) {
 		surface->address = srf_update->flip_addr->address;
-		validate_dcc_with_meta_address(&surface->dcc, &surface->address);
-
 		surface->flip_immediate =
 			srf_update->flip_addr->flip_immediate;
 		surface->time.time_elapsed_in_us[surface->time.index] =
@@ -1826,8 +1801,6 @@ static void copy_surface_update_to_plane(
 				srf_update->plane_info->global_alpha_value;
 		surface->dcc =
 				srf_update->plane_info->dcc;
-		validate_dcc_with_meta_address(&surface->dcc, &surface->address);
-
 		surface->sdr_white_level =
 				srf_update->plane_info->sdr_white_level;
 		surface->layer_index =
-- 
2.28.0