diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
-rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 164 |
1 files changed, 91 insertions, 73 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 44f3fd251ca1..d18b406f2a7d 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -47,9 +47,9 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, struct intel_dp *intel_dp = &intel_mst->primary->dp; struct intel_connector *connector = to_intel_connector(conn_state->connector); + struct drm_i915_private *i915 = to_i915(connector->base.dev); const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; - void *port = connector->port; bool constant_n = drm_dp_has_quirk(&intel_dp->desc, 0, DP_DPCD_QUIRK_CONSTANT_N); int bpp, slots = -EINVAL; @@ -65,7 +65,8 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, false); slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr, - port, crtc_state->pbn, 0); + connector->port, + crtc_state->pbn, 0); if (slots == -EDEADLK) return slots; if (slots >= 0) @@ -73,7 +74,8 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, } if (slots < 0) { - DRM_DEBUG_KMS("failed finding vcpi slots:%d\n", slots); + drm_dbg_kms(&i915->drm, "failed finding vcpi slots:%d\n", + slots); return slots; } @@ -88,56 +90,10 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, return 0; } -/* - * Iterate over all connectors and return the smallest transcoder in the MST - * stream - */ -static enum transcoder -intel_dp_mst_master_trans_compute(struct intel_atomic_state *state, - struct intel_dp *mst_port) -{ - struct drm_i915_private *dev_priv = to_i915(state->base.dev); - struct intel_digital_connector_state *conn_state; - struct intel_connector *connector; - enum pipe ret = I915_MAX_PIPES; - int i; - - if (INTEL_GEN(dev_priv) < 12) - return INVALID_TRANSCODER; - - for_each_new_intel_connector_in_state(state, connector, conn_state, i) { - struct intel_crtc_state *crtc_state; - struct intel_crtc *crtc; - - if (connector->mst_port != mst_port || !conn_state->base.crtc) - continue; - - crtc = to_intel_crtc(conn_state->base.crtc); - crtc_state = intel_atomic_get_new_crtc_state(state, crtc); - if (!crtc_state->uapi.active) - continue; - - /* - * Using crtc->pipe because crtc_state->cpu_transcoder is - * computed, so others CRTCs could have non-computed - * cpu_transcoder - */ - if (crtc->pipe < ret) - ret = crtc->pipe; - } - - if (ret == I915_MAX_PIPES) - return INVALID_TRANSCODER; - - /* Simple cast works because TGL don't have a eDP transcoder */ - return (enum transcoder)ret; -} - static int intel_dp_mst_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) { - struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder); struct intel_dp *intel_dp = &intel_mst->primary->dp; @@ -147,7 +103,6 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, to_intel_digital_connector_state(conn_state); const struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode; - void *port = connector->port; struct link_config_limits limits; int ret; @@ -158,8 +113,7 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, pipe_config->has_pch_encoder = false; if (intel_conn_state->force_audio == HDMI_AUDIO_AUTO) - pipe_config->has_audio = - drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, port); + pipe_config->has_audio = connector->port->has_audio; else pipe_config->has_audio = intel_conn_state->force_audio == HDMI_AUDIO_ON; @@ -201,7 +155,56 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, intel_ddi_compute_min_voltage_level(dev_priv, pipe_config); - pipe_config->mst_master_transcoder = intel_dp_mst_master_trans_compute(state, intel_dp); + return 0; +} + +/* + * Iterate over all connectors and return a mask of + * all CPU transcoders streaming over the same DP link. + */ +static unsigned int +intel_dp_mst_transcoder_mask(struct intel_atomic_state *state, + struct intel_dp *mst_port) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + const struct intel_digital_connector_state *conn_state; + struct intel_connector *connector; + u8 transcoders = 0; + int i; + + if (INTEL_GEN(dev_priv) < 12) + return 0; + + for_each_new_intel_connector_in_state(state, connector, conn_state, i) { + const struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + + if (connector->mst_port != mst_port || !conn_state->base.crtc) + continue; + + crtc = to_intel_crtc(conn_state->base.crtc); + crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + + if (!crtc_state->hw.active) + continue; + + transcoders |= BIT(crtc_state->cpu_transcoder); + } + + return transcoders; +} + +static int intel_dp_mst_compute_config_late(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + 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; + + /* lowest numbered transcoder will be designated master */ + crtc_state->mst_master_transcoder = + ffs(intel_dp_mst_transcoder_mask(state, intel_dp)) - 1; return 0; } @@ -313,7 +316,8 @@ intel_dp_mst_atomic_check(struct drm_connector *connector, return ret; } -static void intel_mst_disable_dp(struct intel_encoder *encoder, +static void intel_mst_disable_dp(struct intel_atomic_state *state, + struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { @@ -322,22 +326,25 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder, struct intel_dp *intel_dp = &intel_dig_port->dp; struct intel_connector *connector = to_intel_connector(old_conn_state->connector); + struct drm_i915_private *i915 = to_i915(connector->base.dev); int ret; - DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links); + drm_dbg_kms(&i915->drm, "active links %d\n", + intel_dp->active_mst_links); drm_dp_mst_reset_vcpi_slots(&intel_dp->mst_mgr, connector->port); ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr); if (ret) { - DRM_DEBUG_KMS("failed to update payload %d\n", ret); + drm_dbg_kms(&i915->drm, "failed to update payload %d\n", ret); } if (old_crtc_state->has_audio) intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state); } -static void intel_mst_post_disable_dp(struct intel_encoder *encoder, +static void intel_mst_post_disable_dp(struct intel_atomic_state *state, + struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { @@ -371,7 +378,8 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder, if (intel_de_wait_for_set(dev_priv, intel_dp->regs.dp_tp_status, DP_TP_STATUS_ACT_SENT, 1)) - DRM_ERROR("Timed out waiting for ACT sent when disabling\n"); + drm_err(&dev_priv->drm, + "Timed out waiting for ACT sent when disabling\n"); drm_dp_check_act_status(&intel_dp->mst_mgr); drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, connector->port); @@ -402,13 +410,15 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder, intel_mst->connector = NULL; if (last_mst_stream) - intel_dig_port->base.post_disable(&intel_dig_port->base, + intel_dig_port->base.post_disable(state, &intel_dig_port->base, old_crtc_state, NULL); - DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links); + drm_dbg_kms(&dev_priv->drm, "active links %d\n", + intel_dp->active_mst_links); } -static void intel_mst_pre_pll_enable_dp(struct intel_encoder *encoder, +static void intel_mst_pre_pll_enable_dp(struct intel_atomic_state *state, + struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config, const struct drm_connector_state *conn_state) { @@ -417,11 +427,12 @@ static void intel_mst_pre_pll_enable_dp(struct intel_encoder *encoder, struct intel_dp *intel_dp = &intel_dig_port->dp; if (intel_dp->active_mst_links == 0) - intel_dig_port->base.pre_pll_enable(&intel_dig_port->base, + intel_dig_port->base.pre_pll_enable(state, &intel_dig_port->base, pipe_config, NULL); } -static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, +static void intel_mst_pre_enable_dp(struct intel_atomic_state *state, + struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config, const struct drm_connector_state *conn_state) { @@ -445,7 +456,8 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, INTEL_GEN(dev_priv) >= 12 && first_mst_stream && !intel_dp_mst_is_master_trans(pipe_config)); - DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links); + drm_dbg_kms(&dev_priv->drm, "active links %d\n", + intel_dp->active_mst_links); if (first_mst_stream) intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); @@ -453,7 +465,7 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, drm_dp_send_power_updown_phy(&intel_dp->mst_mgr, connector->port, true); if (first_mst_stream) - intel_dig_port->base.pre_enable(&intel_dig_port->base, + intel_dig_port->base.pre_enable(state, &intel_dig_port->base, pipe_config, NULL); ret = drm_dp_mst_allocate_vcpi(&intel_dp->mst_mgr, @@ -461,7 +473,7 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, pipe_config->pbn, pipe_config->dp_m_n.tu); if (!ret) - DRM_ERROR("failed to allocate vcpi\n"); + drm_err(&dev_priv->drm, "failed to allocate vcpi\n"); intel_dp->active_mst_links++; temp = intel_de_read(dev_priv, intel_dp->regs.dp_tp_status); @@ -477,14 +489,15 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, * here for the following ones. */ if (INTEL_GEN(dev_priv) < 12 || !first_mst_stream) - intel_ddi_enable_pipe_clock(pipe_config); + intel_ddi_enable_pipe_clock(encoder, pipe_config); intel_ddi_set_dp_msa(pipe_config, conn_state); intel_dp_set_m_n(pipe_config, M1_N1); } -static void intel_mst_enable_dp(struct intel_encoder *encoder, +static void intel_mst_enable_dp(struct intel_atomic_state *state, + struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config, const struct drm_connector_state *conn_state) { @@ -495,19 +508,23 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder, drm_WARN_ON(&dev_priv->drm, pipe_config->has_pch_encoder); - intel_enable_pipe(pipe_config); - - intel_crtc_vblank_on(pipe_config); + intel_ddi_enable_transcoder_func(encoder, pipe_config); - DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links); + drm_dbg_kms(&dev_priv->drm, "active links %d\n", + intel_dp->active_mst_links); if (intel_de_wait_for_set(dev_priv, intel_dp->regs.dp_tp_status, DP_TP_STATUS_ACT_SENT, 1)) - DRM_ERROR("Timed out waiting for ACT sent\n"); + drm_err(&dev_priv->drm, "Timed out waiting for ACT sent\n"); drm_dp_check_act_status(&intel_dp->mst_mgr); drm_dp_update_payload_part2(&intel_dp->mst_mgr); + + intel_enable_pipe(pipe_config); + + intel_crtc_vblank_on(pipe_config); + if (pipe_config->has_audio) intel_audio_codec_enable(encoder, pipe_config, conn_state); } @@ -786,6 +803,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum intel_encoder->pipe_mask = ~0; intel_encoder->compute_config = intel_dp_mst_compute_config; + intel_encoder->compute_config_late = intel_dp_mst_compute_config_late; intel_encoder->disable = intel_mst_disable_dp; intel_encoder->post_disable = intel_mst_post_disable_dp; intel_encoder->pre_pll_enable = intel_mst_pre_pll_enable_dp; |