From: jsg <jsg@openbsd.org>
Date: Mon, 11 Dec 2023 05:07:03 +0000 (+0000)
Subject: drm/amd/display: Remove min_dst_y_next_start check for Z8
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=2c119524e8342b1337dde9b40a8913791fc961ce;p=openbsd

drm/amd/display: Remove min_dst_y_next_start check for Z8

From Nicholas Kazlauskas
a67c18704706e0a9ccac9b7002e678d325aea123 in linux-6.1.y/6.1.66
08448812acb2ab701cd5ff7e1a1dc97f7f10260c in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/sys/dev/pci/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
index dbe5d2efa4a..9d224bb2b3d 100644
--- a/sys/dev/pci/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
+++ b/sys/dev/pci/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
@@ -948,10 +948,8 @@ static enum dcn_zstate_support_state  decide_zstate_support(struct dc *dc, struc
 {
 	int plane_count;
 	int i;
-	unsigned int min_dst_y_next_start_us;
 
 	plane_count = 0;
-	min_dst_y_next_start_us = 0;
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		if (context->res_ctx.pipe_ctx[i].plane_state)
 			plane_count++;
@@ -973,26 +971,15 @@ static enum dcn_zstate_support_state  decide_zstate_support(struct dc *dc, struc
 	else if (context->stream_count == 1 &&  context->streams[0]->signal == SIGNAL_TYPE_EDP) {
 		struct dc_link *link = context->streams[0]->sink->link;
 		struct dc_stream_status *stream_status = &context->stream_status[0];
-		struct dc_stream_state *current_stream = context->streams[0];
 		int minmum_z8_residency = dc->debug.minimum_z8_residency_time > 0 ? dc->debug.minimum_z8_residency_time : 1000;
 		bool allow_z8 = context->bw_ctx.dml.vba.StutterPeriod > (double)minmum_z8_residency;
 		bool is_pwrseq0 = link->link_index == 0;
-		bool isFreesyncVideo;
-
-		isFreesyncVideo = current_stream->adjust.v_total_min == current_stream->adjust.v_total_max;
-		isFreesyncVideo = isFreesyncVideo && current_stream->timing.v_total < current_stream->adjust.v_total_min;
-		for (i = 0; i < dc->res_pool->pipe_count; i++) {
-			if (context->res_ctx.pipe_ctx[i].stream == current_stream && isFreesyncVideo) {
-				min_dst_y_next_start_us = context->res_ctx.pipe_ctx[i].dlg_regs.min_dst_y_next_start_us;
-				break;
-			}
-		}
 
 		/* Don't support multi-plane configurations */
 		if (stream_status->plane_count > 1)
 			return DCN_ZSTATE_SUPPORT_DISALLOW;
 
-		if (is_pwrseq0 && (context->bw_ctx.dml.vba.StutterPeriod > 5000.0 || min_dst_y_next_start_us > 5000))
+		if (is_pwrseq0 && context->bw_ctx.dml.vba.StutterPeriod > 5000.0)
 			return DCN_ZSTATE_SUPPORT_ALLOW;
 		else if (is_pwrseq0 && link->psr_settings.psr_version == DC_PSR_VERSION_1 && !link->panel_config.psr.disable_psr)
 			return allow_z8 ? DCN_ZSTATE_SUPPORT_ALLOW_Z8_Z10_ONLY : DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY;