A seamless boot stream has hardware resources assigned to it, and adding
a new stream means rebuilding the current assignment. It is desirable to
avoid this situation since it may cause light-up issues on the VGA
monitor on USB-C. This commit swaps the seamless boot stream to pipe 0
(if necessary) to ensure that the pipe context matches.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Co-developed-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 15 +++++++++++++++
1 file changed, 15 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 e001b138b2ac..ba2d4347f722 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2765,6 +2765,21 @@ 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]);
--
2.38.0
