diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_types.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 143 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.h | 5 |
7 files changed, 182 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index b7dda18b6f29..0eb973f65977 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -192,6 +192,20 @@ intel_connector_needs_modeset(struct intel_atomic_state *state, new_conn_state->crtc))); } +struct intel_digital_connector_state * +intel_atomic_get_digital_connector_state(struct intel_atomic_state *state, + struct intel_connector *connector) +{ + struct drm_connector_state *conn_state; + + conn_state = drm_atomic_get_connector_state(&state->base, + &connector->base); + if (IS_ERR(conn_state)) + return ERR_CAST(conn_state); + + return to_intel_digital_connector_state(conn_state); +} + /** * intel_crtc_duplicate_state - duplicate crtc state * @crtc: drm crtc diff --git a/drivers/gpu/drm/i915/display/intel_atomic.h b/drivers/gpu/drm/i915/display/intel_atomic.h index a7d1a8576c48..74c749dbfb4f 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.h +++ b/drivers/gpu/drm/i915/display/intel_atomic.h @@ -17,6 +17,7 @@ struct drm_device; struct drm_i915_private; struct drm_property; struct intel_atomic_state; +struct intel_connector; struct intel_crtc; struct intel_crtc_state; @@ -34,6 +35,9 @@ struct drm_connector_state * intel_digital_connector_duplicate_state(struct drm_connector *connector); bool intel_connector_needs_modeset(struct intel_atomic_state *state, struct drm_connector *connector); +struct intel_digital_connector_state * +intel_atomic_get_digital_connector_state(struct intel_atomic_state *state, + struct intel_connector *connector); struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc); void intel_crtc_destroy_state(struct drm_crtc *crtc, diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index c9ba7d7f3787..c3ac950e79a8 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -1899,8 +1899,13 @@ intel_ddi_transcoder_func_reg_val_get(const struct intel_crtc_state *crtc_state) temp |= TRANS_DDI_MODE_SELECT_DP_MST; temp |= DDI_PORT_WIDTH(crtc_state->lane_count); - if (INTEL_GEN(dev_priv) >= 12) - temp |= TRANS_DDI_MST_TRANSPORT_SELECT(crtc_state->cpu_transcoder); + if (INTEL_GEN(dev_priv) >= 12) { + enum transcoder master; + + master = crtc_state->mst_master_transcoder; + WARN_ON(master == INVALID_TRANSCODER); + temp |= TRANS_DDI_MST_TRANSPORT_SELECT(master); + } } else { temp |= TRANS_DDI_MODE_SELECT_DP_SST; temp |= DDI_PORT_WIDTH(crtc_state->lane_count); @@ -4405,6 +4410,11 @@ void intel_ddi_get_config(struct intel_encoder *encoder, pipe_config->output_types |= BIT(INTEL_OUTPUT_DP_MST); pipe_config->lane_count = ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1; + + if (INTEL_GEN(dev_priv) >= 12) + pipe_config->mst_master_transcoder = + REG_FIELD_GET(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, temp); + intel_dp_get_m_n(intel_crtc, pipe_config); break; default: diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 16e4cf1eade2..f055645f6a25 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -46,6 +46,7 @@ #include "display/intel_crt.h" #include "display/intel_ddi.h" #include "display/intel_dp.h" +#include "display/intel_dp_mst.h" #include "display/intel_dsi.h" #include "display/intel_dvo.h" #include "display/intel_gmbus.h" @@ -11880,6 +11881,7 @@ static void intel_crtc_state_reset(struct intel_crtc_state *crtc_state, crtc_state->hsw_workaround_pipe = INVALID_PIPE; crtc_state->output_format = INTEL_OUTPUT_FORMAT_INVALID; crtc_state->scaler_state.scaler_id = -1; + crtc_state->mst_master_transcoder = INVALID_TRANSCODER; } static struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc) @@ -12738,6 +12740,9 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config, pipe_config->csc_mode, pipe_config->gamma_mode, pipe_config->gamma_enable, pipe_config->csc_enable); + DRM_DEBUG_KMS("MST master transcoder: %s\n", + transcoder_name(pipe_config->mst_master_transcoder)); + dump_planes: if (!state) return; @@ -13518,6 +13523,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, PIPE_CONF_CHECK_I(dsc.dsc_split); PIPE_CONF_CHECK_I(dsc.compressed_bpp); + PIPE_CONF_CHECK_I(mst_master_transcoder); + #undef PIPE_CONF_CHECK_X #undef PIPE_CONF_CHECK_I #undef PIPE_CONF_CHECK_BOOL @@ -14602,7 +14609,7 @@ static void intel_commit_modeset_disables(struct intel_atomic_state *state) u32 handled = 0; int i; - /* Only disable port sync slaves */ + /* Only disable port sync and MST slaves */ for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { if (!needs_modeset(new_crtc_state)) @@ -14616,7 +14623,8 @@ static void intel_commit_modeset_disables(struct intel_atomic_state *state) * slave CRTCs are disabled first and then master CRTC since * Slave vblanks are masked till Master Vblanks. */ - if (!is_trans_port_sync_slave(old_crtc_state)) + if (!is_trans_port_sync_slave(old_crtc_state) && + !intel_dp_mst_is_slave_trans(old_crtc_state)) continue; intel_pre_plane_update(state, crtc); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 83ea04149b77..630a94892b7b 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1054,6 +1054,9 @@ struct intel_crtc_state { /* Bitmask to indicate slaves attached */ u8 sync_mode_slaves_mask; + + /* Only valid on TGL+ */ + enum transcoder mst_master_transcoder; }; struct intel_crtc { diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 7aa0975c33b7..8cfff078486d 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -87,10 +87,56 @@ 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->base); struct intel_dp *intel_dp = &intel_mst->primary->dp; @@ -154,24 +200,91 @@ 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; +} + +/* + * If one of the connectors in a MST stream needs a modeset, mark all CRTCs + * that shares the same MST stream as mode changed, + * intel_modeset_pipe_config()+intel_crtc_check_fastset() will take care to do + * a fastset when possible. + */ +static int +intel_dp_mst_atomic_master_trans_check(struct intel_connector *connector, + struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct drm_connector_list_iter connector_list_iter; + struct intel_connector *connector_iter; + + if (INTEL_GEN(dev_priv) < 12) + return 0; + + if (!intel_connector_needs_modeset(state, &connector->base)) + return 0; + + drm_connector_list_iter_begin(&dev_priv->drm, &connector_list_iter); + for_each_intel_connector_iter(connector_iter, &connector_list_iter) { + struct intel_digital_connector_state *conn_iter_state; + struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + int ret; + + if (connector_iter->mst_port != connector->mst_port || + connector_iter == connector) + continue; + + conn_iter_state = intel_atomic_get_digital_connector_state(state, + connector_iter); + if (IS_ERR(conn_iter_state)) { + drm_connector_list_iter_end(&connector_list_iter); + return PTR_ERR(conn_iter_state); + } + + if (!conn_iter_state->base.crtc) + continue; + + crtc = to_intel_crtc(conn_iter_state->base.crtc); + crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); + if (IS_ERR(crtc_state)) { + drm_connector_list_iter_end(&connector_list_iter); + return PTR_ERR(crtc_state); + } + + ret = drm_atomic_add_affected_planes(&state->base, &crtc->base); + if (ret) { + drm_connector_list_iter_end(&connector_list_iter); + return ret; + } + crtc_state->uapi.mode_changed = true; + } + drm_connector_list_iter_end(&connector_list_iter); + return 0; } static int intel_dp_mst_atomic_check(struct drm_connector *connector, - struct drm_atomic_state *state) + struct drm_atomic_state *_state) { + struct intel_atomic_state *state = to_intel_atomic_state(_state); struct drm_connector_state *new_conn_state = - drm_atomic_get_new_connector_state(state, connector); + drm_atomic_get_new_connector_state(&state->base, connector); struct drm_connector_state *old_conn_state = - drm_atomic_get_old_connector_state(state, connector); + drm_atomic_get_old_connector_state(&state->base, connector); struct intel_connector *intel_connector = to_intel_connector(connector); struct drm_crtc *new_crtc = new_conn_state->crtc; struct drm_dp_mst_topology_mgr *mgr; int ret; - ret = intel_digital_connector_atomic_check(connector, state); + ret = intel_digital_connector_atomic_check(connector, &state->base); + if (ret) + return ret; + + ret = intel_dp_mst_atomic_master_trans_check(intel_connector, state); if (ret) return ret; @@ -182,12 +295,9 @@ intel_dp_mst_atomic_check(struct drm_connector *connector, * connector */ if (new_crtc) { - struct intel_atomic_state *intel_state = - to_intel_atomic_state(state); struct intel_crtc *intel_crtc = to_intel_crtc(new_crtc); struct intel_crtc_state *crtc_state = - intel_atomic_get_new_crtc_state(intel_state, - intel_crtc); + intel_atomic_get_new_crtc_state(state, intel_crtc); if (!crtc_state || !drm_atomic_crtc_needs_modeset(&crtc_state->uapi) || @@ -196,7 +306,7 @@ intel_dp_mst_atomic_check(struct drm_connector *connector, } mgr = &enc_to_mst(old_conn_state->best_encoder)->primary->dp.mst_mgr; - ret = drm_dp_atomic_release_vcpi_slots(state, mgr, + ret = drm_dp_atomic_release_vcpi_slots(&state->base, mgr, intel_connector->port); return ret; @@ -240,6 +350,8 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder, intel_dp->active_mst_links--; last_mst_stream = intel_dp->active_mst_links == 0; + WARN_ON(INTEL_GEN(dev_priv) >= 12 && last_mst_stream && + !intel_dp_mst_is_master_trans(old_crtc_state)); intel_crtc_vblank_off(old_crtc_state); @@ -317,6 +429,8 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder, connector->encoder = encoder; intel_mst->connector = connector; first_mst_stream = intel_dp->active_mst_links == 0; + WARN_ON(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); @@ -722,3 +836,14 @@ intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port) drm_dp_mst_topology_mgr_destroy(&intel_dp->mst_mgr); /* encoders will get killed by normal cleanup */ } + +bool intel_dp_mst_is_master_trans(const struct intel_crtc_state *crtc_state) +{ + return crtc_state->mst_master_transcoder == crtc_state->cpu_transcoder; +} + +bool intel_dp_mst_is_slave_trans(const struct intel_crtc_state *crtc_state) +{ + return crtc_state->mst_master_transcoder != INVALID_TRANSCODER && + crtc_state->mst_master_transcoder != crtc_state->cpu_transcoder; +} diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.h b/drivers/gpu/drm/i915/display/intel_dp_mst.h index f660ad80db04..854724f68f09 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.h +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.h @@ -6,10 +6,15 @@ #ifndef __INTEL_DP_MST_H__ #define __INTEL_DP_MST_H__ +#include <linux/types.h> + struct intel_digital_port; +struct intel_crtc_state; int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id); void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port); int intel_dp_mst_encoder_active_links(struct intel_digital_port *intel_dig_port); +bool intel_dp_mst_is_master_trans(const struct intel_crtc_state *crtc_state); +bool intel_dp_mst_is_slave_trans(const struct intel_crtc_state *crtc_state); #endif /* __INTEL_DP_MST_H__ */ |