Commit baf66453 authored by Peterson's avatar Peterson Committed by Alex Deucher
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drm/amd/display: Check that hw cursor is not required when falling back to subvp sw cursor 



[WHY]
When using a sw cursor and flip immediate, the plane that is flipping
immediately will do partial updates causing tearing.
When on certain displays, subvp is expected based on
timings but should be disabled in specific use cases that are not
accounted for.

[HOW]
This was fixed by improving the timings check by using the hw cursor
required flag to cover the unaccounted use cases.

Reviewed-by: default avatarAustin Zheng <austin.zheng@amd.com>
Signed-off-by: default avatarPeterson <peterson.guo@amd.com>
Signed-off-by: default avatarFangzhi Zuo <jerry.zuo@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 84886469

drivers/gpu/drm/amd/display/dc/core/dc.c

+1 −1
Original line number Diff line number Diff line
@@ -6056,7 +6056,7 @@ void dc_query_current_properties(struct dc *dc, struct dc_current_properties *pr 
	bool subvp_sw_cursor_req = false;



	for (i = 0; i < dc->current_state->stream_count; i++) {

		if (check_subvp_sw_cursor_fallback_req(dc, dc->current_state->streams[i])) {

		if (check_subvp_sw_cursor_fallback_req(dc, dc->current_state->streams[i]) && !dc->current_state->streams[i]->hw_cursor_req) {

			subvp_sw_cursor_req = true;

			break;

		}