On Tue, Jan 23, 2024 at 12:28:45PM +0200, Imre Deak wrote:
> 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);
Error handling seems awol?
> +
> 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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