From: jsg <jsg@openbsd.org>
Date: Thu, 17 Aug 2023 04:01:21 +0000 (+0000)
Subject: drm/amd/display: Handle seamless boot stream
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=0b04846a240f0252ccef82d32aa29973a605b23b;p=openbsd

drm/amd/display: Handle seamless boot stream

From Rodrigo Siqueira
b2415df0afba5a114cececdb556f74b3d7965aa8 in linux-6.1.y/6.1.46
170390e587a69b2a24abac39eb3ae6ec28a4d7f2 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c b/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c
index 49a850a32ce..2b58cd310e1 100644
--- a/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c
+++ b/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c
@@ -2788,6 +2788,21 @@ enum dc_status dc_validate_with_context(struct dc *dc,
 			goto fail;
 	}
 
+	/* Swap seamless boot stream to pipe 0 (if needed) to ensure pipe_ctx
+	 * matches. This may change in the future if seamless_boot_stream can be
+	 * multiple.
+	 */
+	for (i = 0; i < add_streams_count; i++) {
+		mark_seamless_boot_stream(dc, add_streams[i]);
+		if (add_streams[i]->apply_seamless_boot_optimization && i != 0) {
+			struct dc_stream_state *temp = add_streams[0];
+
+			add_streams[0] = add_streams[i];
+			add_streams[i] = temp;
+			break;
+		}
+	}
+
 	/* Add new streams and then add all planes for the new stream */
 	for (i = 0; i < add_streams_count; i++) {
 		calculate_phy_pix_clks(add_streams[i]);