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.d...@intel.com>
---
 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

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