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path: root/drivers/gpu/drm/i915/display/intel_dp_mst.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_mst.c64
1 files changed, 30 insertions, 34 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 1b067cd73261..13abe2b2170e 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -52,6 +52,7 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
struct drm_atomic_state *state = crtc_state->uapi.state;
struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
struct intel_dp *intel_dp = &intel_mst->primary->dp;
+ struct drm_dp_mst_topology_state *mst_state;
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
struct drm_i915_private *i915 = to_i915(connector->base.dev);
@@ -60,22 +61,28 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N);
int bpp, slots = -EINVAL;
+ mst_state = drm_atomic_get_mst_topology_state(state, &intel_dp->mst_mgr);
+ if (IS_ERR(mst_state))
+ return PTR_ERR(mst_state);
+
crtc_state->lane_count = limits->max_lane_count;
crtc_state->port_clock = limits->max_rate;
+ // TODO: Handle pbn_div changes by adding a new MST helper
+ if (!mst_state->pbn_div) {
+ mst_state->pbn_div = drm_dp_get_vc_payload_bw(&intel_dp->mst_mgr,
+ limits->max_rate,
+ limits->max_lane_count);
+ }
+
for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) {
crtc_state->pipe_bpp = bpp;
crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock,
crtc_state->pipe_bpp,
false);
-
slots = drm_dp_atomic_find_time_slots(state, &intel_dp->mst_mgr,
- connector->port,
- crtc_state->pbn,
- drm_dp_get_vc_payload_bw(&intel_dp->mst_mgr,
- crtc_state->port_clock,
- crtc_state->lane_count));
+ connector->port, crtc_state->pbn);
if (slots == -EDEADLK)
return slots;
if (slots >= 0)
@@ -360,21 +367,17 @@ static void intel_mst_disable_dp(struct intel_atomic_state *state,
struct intel_dp *intel_dp = &dig_port->dp;
struct intel_connector *connector =
to_intel_connector(old_conn_state->connector);
+ struct drm_dp_mst_topology_state *mst_state =
+ drm_atomic_get_mst_topology_state(&state->base, &intel_dp->mst_mgr);
struct drm_i915_private *i915 = to_i915(connector->base.dev);
- int start_slot = intel_dp_is_uhbr(old_crtc_state) ? 0 : 1;
- int ret;
drm_dbg_kms(&i915->drm, "active links %d\n",
intel_dp->active_mst_links);
intel_hdcp_disable(intel_mst->connector);
- drm_dp_mst_reset_vcpi_slots(&intel_dp->mst_mgr, connector->port);
-
- ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr, start_slot);
- if (ret) {
- drm_dbg_kms(&i915->drm, "failed to update payload %d\n", ret);
- }
+ drm_dp_remove_payload(&intel_dp->mst_mgr, mst_state,
+ drm_atomic_get_mst_payload_state(mst_state, connector->port));
intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state);
}
@@ -402,8 +405,6 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
intel_disable_transcoder(old_crtc_state);
- drm_dp_update_payload_part2(&intel_dp->mst_mgr);
-
clear_act_sent(encoder, old_crtc_state);
intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder),
@@ -411,8 +412,6 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
wait_for_act_sent(encoder, old_crtc_state);
- drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, connector->port);
-
intel_ddi_disable_transcoder_func(old_crtc_state);
if (DISPLAY_VER(dev_priv) >= 9)
@@ -479,7 +478,8 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state,
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
- int start_slot = intel_dp_is_uhbr(pipe_config) ? 0 : 1;
+ struct drm_dp_mst_topology_state *mst_state =
+ drm_atomic_get_new_mst_topology_state(&state->base, &intel_dp->mst_mgr);
int ret;
bool first_mst_stream;
@@ -505,16 +505,13 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state,
dig_port->base.pre_enable(state, &dig_port->base,
pipe_config, NULL);
- ret = drm_dp_mst_allocate_vcpi(&intel_dp->mst_mgr,
- connector->port,
- pipe_config->pbn,
- pipe_config->dp_m_n.tu);
- if (!ret)
- drm_err(&dev_priv->drm, "failed to allocate vcpi\n");
-
intel_dp->active_mst_links++;
- ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr, start_slot);
+ ret = drm_dp_add_payload_part1(&intel_dp->mst_mgr, mst_state,
+ drm_atomic_get_mst_payload_state(mst_state, connector->port));
+ if (ret < 0)
+ drm_err(&dev_priv->drm, "Failed to create MST payload for %s: %d\n",
+ connector->base.name, ret);
/*
* Before Gen 12 this is not done as part of
@@ -537,7 +534,10 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
struct intel_digital_port *dig_port = intel_mst->primary;
struct intel_dp *intel_dp = &dig_port->dp;
+ struct intel_connector *connector = to_intel_connector(conn_state->connector);
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ struct drm_dp_mst_topology_state *mst_state =
+ drm_atomic_get_new_mst_topology_state(&state->base, &intel_dp->mst_mgr);
enum transcoder trans = pipe_config->cpu_transcoder;
drm_WARN_ON(&dev_priv->drm, pipe_config->has_pch_encoder);
@@ -565,7 +565,8 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
wait_for_act_sent(encoder, pipe_config);
- drm_dp_update_payload_part2(&intel_dp->mst_mgr);
+ drm_dp_add_payload_part2(&intel_dp->mst_mgr, &state->base,
+ drm_atomic_get_mst_payload_state(mst_state, connector->port));
if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable)
intel_de_rmw(dev_priv, CHICKEN_TRANS(trans), 0,
@@ -949,8 +950,6 @@ intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_base_id)
struct intel_dp *intel_dp = &dig_port->dp;
enum port port = dig_port->base.port;
int ret;
- int max_source_rate =
- intel_dp->source_rates[intel_dp->num_source_rates - 1];
if (!HAS_DP_MST(i915) || intel_dp_is_edp(intel_dp))
return 0;
@@ -966,10 +965,7 @@ intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_base_id)
/* create encoders */
intel_dp_create_fake_mst_encoders(dig_port);
ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, &i915->drm,
- &intel_dp->aux, 16, 3,
- dig_port->max_lanes,
- max_source_rate,
- conn_base_id);
+ &intel_dp->aux, 16, 3, conn_base_id);
if (ret) {
intel_dp->mst_mgr.cbs = NULL;
return ret;
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-27 04:00:59 +0300