linux-kernel - [PATCH 6.0 195/862] drm/amd/display: Enable 2 to 1 ODM policy if supported

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Date:   Wed, 19 Oct 2022 10:24:42 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Aurabindo Pillai <aurabindo.pillai@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 6.0 195/862] drm/amd/display: Enable 2 to 1 ODM policy if supported

From: Rodrigo Siqueira <Rodrigo.Siqueira@....com>

commit 54fae65ff469a79fc0ca46f480c4e7fce50f3963 upstream.

If the current configuration supports 2 to 1 ODM policy, let's also
enable the windowed MPO feature.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@....com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org # 6.0.x
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
@@ -1001,6 +1001,10 @@ void dcn32_init_hw(struct dc *dc)
 		dc_dmub_srv_query_caps_cmd(dc->ctx->dmub_srv->dmub);
 		dc->caps.dmub_caps.psr = dc->ctx->dmub_srv->dmub->feature_caps.psr;
 	}
+
+	/* Enable support for ODM and windowed MPO if policy flag is set */
+	if (dc->debug.enable_single_display_2to1_odm_policy)
+		dc->config.enable_windowed_mpo_odm = true;
 }
 
 static int calc_mpc_flow_ctrl_cnt(const struct dc_stream_state *stream,