[PATCH 14/19] drm/i915/dp: Compute DP tunel BW during encoder state computation

[Imre Deak <imre.deak@xxxxxxxxx>]

Compute the BW required through a DP tunnel on links with such tunnels
detected and add the corresponding atomic state during a modeset.

Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_dp.c     | 16 +++++++++++++---
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 13 +++++++++++++
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 78dfe8be6031d..6968fdb7ffcdf 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2880,6 +2880,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 			struct drm_connector_state *conn_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
 	struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 	const struct drm_display_mode *fixed_mode;
@@ -2980,6 +2981,9 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 	intel_dp_compute_vsc_sdp(intel_dp, pipe_config, conn_state);
 	intel_dp_compute_hdr_metadata_infoframe_sdp(intel_dp, pipe_config, conn_state);
 
+	intel_dp_tunnel_atomic_compute_stream_bw(state, intel_dp, connector,
+						 pipe_config);
+
 	return 0;
 }
 
@@ -6087,6 +6091,15 @@ static int intel_dp_connector_atomic_check(struct drm_connector *conn,
 			return ret;
 	}
 
+	if (!intel_connector_needs_modeset(state, conn))
+		return 0;
+
+	ret = intel_dp_tunnel_atomic_check_state(state,
+						 intel_dp,
+						 intel_conn);
+	if (ret)
+		return ret;
+
 	/*
 	 * We don't enable port sync on BDW due to missing w/as and
 	 * due to not having adjusted the modeset sequence appropriately.
@@ -6094,9 +6107,6 @@ static int intel_dp_connector_atomic_check(struct drm_connector *conn,
 	if (DISPLAY_VER(dev_priv) < 9)
 		return 0;
 
-	if (!intel_connector_needs_modeset(state, conn))
-		return 0;
-
 	if (conn->has_tile) {
 		ret = intel_modeset_tile_group(state, conn->tile_group->id);
 		if (ret)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 520393dc8b453..cbfab3173b9ef 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -42,6 +42,7 @@
 #include "intel_dp.h"
 #include "intel_dp_hdcp.h"
 #include "intel_dp_mst.h"
+#include "intel_dp_tunnel.h"
 #include "intel_dpio_phy.h"
 #include "intel_hdcp.h"
 #include "intel_hotplug.h"
@@ -523,6 +524,7 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
 				       struct drm_connector_state *conn_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
 	struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
 	struct intel_dp *intel_dp = &intel_mst->primary->dp;
 	const struct intel_connector *connector =
@@ -619,6 +621,9 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
 
 	intel_psr_compute_config(intel_dp, pipe_config, conn_state);
 
+	intel_dp_tunnel_atomic_compute_stream_bw(state, intel_dp, connector,
+						 pipe_config);
+
 	return 0;
 }
 
@@ -876,6 +881,14 @@ intel_dp_mst_atomic_check(struct drm_connector *connector,
 	if (ret)
 		return ret;
 
+	if (intel_connector_needs_modeset(state, connector)) {
+		ret = intel_dp_tunnel_atomic_check_state(state,
+							 intel_connector->mst_port,
+							 intel_connector);
+		if (ret)
+			return ret;
+	}
+
 	return drm_dp_atomic_release_time_slots(&state->base,
 						&intel_connector->mst_port->mst_mgr,
 						intel_connector->port);
-- 
2.39.2