Commit c40f8b13 authored by Dillon Varone's avatar Dillon Varone Committed by Alex Deucher
Browse files

drm/amd/display: Check validation passed after applying pipe split changes 



[WHY?]
Validation can fail for configurations that were previously supported, by only
changing parameters such as the DET allocations, which is currently unexpected.

[HOW?]
Add a check that validation passes after applying pipe split related changes.

Reviewed-by: default avatarAlvin Lee <Alvin.Lee2@amd.com>
Acked-by: default avatarAlex Hung <alex.hung@amd.com>
Signed-off-by: default avatarDillon Varone <Dillon.Varone@amd.com>
Tested-by: default avatarMark Broadworth <mark.broadworth@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6139ab41

drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c

+6 −4
Original line number Diff line number Diff line
@@ -1736,10 +1736,12 @@ bool dcn32_internal_validate_bw(struct dc *dc, 
		 * ensure all the params are calculated correctly. We do not need to run the

		 * pipe split check again after this call (pipes are already split / merged).

		 * */

		if (!fast_validate) {

		context->bw_ctx.dml.soc.allow_for_pstate_or_stutter_in_vblank_final =

					dm_prefetch_support_uclk_fclk_and_stutter_if_possible;

		vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, pipe_cnt);

		if (vlevel == context->bw_ctx.dml.soc.num_states) {

			/* failed after DET size changes */

			goto validate_fail;

		}

	}

	*vlevel_out = vlevel;