From e24bcd34c1dd7dabde4a8546920537f7137e3c5f Mon Sep 17 00:00:00 2001 From: Manasi Navare Date: Fri, 14 Feb 2020 03:41:26 -0800 Subject: [PATCH] drm/i915/dp: Add all tiled and port sync conns to modeset MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit If one of the synced crtcs needs a full modeset, we need to make sure all the synced crtcs are forced a full modeset. v3: * Remove ~BIT(cpu_trans) which is a nop (Ville) * use get_new_crtc_state and remove error check (Ville) v2: * Add tiles based on cpu_trans check (Ville) Suggested-by: Ville Syrjälä Cc: Ville Syrjälä Signed-off-by: Manasi Navare Reviewed-by: Ville Syrjälä Signed-off-by: Uma Shankar Link: https://patchwork.freedesktop.org/patch/msgid/20200214114126.13192-3-manasi.d.navare@intel.com --- drivers/gpu/drm/i915/display/intel_display.c | 85 ----------------- drivers/gpu/drm/i915/display/intel_dp.c | 136 ++++++++++++++++++++++++++- 2 files changed, 135 insertions(+), 86 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 98302f54ef36..86ca35d160b8 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -14694,76 +14694,6 @@ static bool intel_cpu_transcoders_need_modeset(struct intel_atomic_state *state, return false; } -static int -intel_modeset_all_tiles(struct intel_atomic_state *state, int tile_grp_id) -{ - struct drm_i915_private *dev_priv = to_i915(state->base.dev); - struct drm_connector *connector; - struct drm_connector_list_iter conn_iter; - int ret = 0; - - drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); - drm_for_each_connector_iter(connector, &conn_iter) { - struct drm_connector_state *conn_state; - struct drm_crtc_state *crtc_state; - - if (!connector->has_tile || - connector->tile_group->id != tile_grp_id) - continue; - conn_state = drm_atomic_get_connector_state(&state->base, - connector); - if (IS_ERR(conn_state)) { - ret = PTR_ERR(conn_state); - break; - } - - if (!conn_state->crtc) - continue; - - crtc_state = drm_atomic_get_crtc_state(&state->base, - conn_state->crtc); - if (IS_ERR(crtc_state)) { - ret = PTR_ERR(crtc_state); - break; - } - crtc_state->mode_changed = true; - ret = drm_atomic_add_affected_connectors(&state->base, - conn_state->crtc); - if (ret) - break; - } - drm_connector_list_iter_end(&conn_iter); - - return ret; -} - -static int -intel_atomic_check_tiled_conns(struct intel_atomic_state *state) -{ - struct drm_i915_private *dev_priv = to_i915(state->base.dev); - struct drm_connector *connector; - struct drm_connector_state *old_conn_state, *new_conn_state; - int i, ret; - - if (INTEL_GEN(dev_priv) < 11) - return 0; - - /* Is tiled, mark all other tiled CRTCs as needing a modeset */ - for_each_oldnew_connector_in_state(&state->base, connector, - old_conn_state, new_conn_state, i) { - if (!connector->has_tile) - continue; - if (!intel_connector_needs_modeset(state, connector)) - continue; - - ret = intel_modeset_all_tiles(state, connector->tile_group->id); - if (ret) - return ret; - } - - return 0; -} - /** * intel_atomic_check - validate state object * @dev: drm device @@ -14792,21 +14722,6 @@ static int intel_atomic_check(struct drm_device *dev, if (ret) goto fail; - /** - * This check adds all the connectors in current state that belong to - * the same tile group to a full modeset. - * This function directly sets the mode_changed to true and we also call - * drm_atomic_add_affected_connectors(). Hence we are not explicitly - * calling drm_atomic_helper_check_modeset() after this. - * - * Fixme: Handle some corner cases where one of the - * tiled connectors gets disconnected and tile info is lost but since it - * was previously synced to other conn, we need to add that to the modeset. - */ - ret = intel_atomic_check_tiled_conns(state); - if (ret) - goto fail; - for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { if (!needs_modeset(new_crtc_state)) { diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 5f820dbb7a3a..7d69b4f43fe2 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6585,6 +6585,140 @@ void intel_dp_encoder_reset(struct drm_encoder *encoder) } } +static int intel_modeset_tile_group(struct intel_atomic_state *state, + int tile_group_id) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct drm_connector_list_iter conn_iter; + struct drm_connector *connector; + int ret = 0; + + drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + struct drm_connector_state *conn_state; + struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + + if (!connector->has_tile || + connector->tile_group->id != tile_group_id) + continue; + + conn_state = drm_atomic_get_connector_state(&state->base, + connector); + if (IS_ERR(conn_state)) { + ret = PTR_ERR(conn_state); + break; + } + + crtc = to_intel_crtc(conn_state->crtc); + + if (!crtc) + continue; + + crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + crtc_state->uapi.mode_changed = true; + + ret = drm_atomic_add_affected_planes(&state->base, &crtc->base); + if (ret) + break; + } + drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); + + return ret; +} + +static int intel_modeset_affected_transcoders(struct intel_atomic_state *state, u8 transcoders) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct intel_crtc *crtc; + + if (transcoders == 0) + return 0; + + for_each_intel_crtc(&dev_priv->drm, crtc) { + struct intel_crtc_state *crtc_state; + int ret; + + crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + if (!crtc_state->hw.enable) + continue; + + if (!(transcoders & BIT(crtc_state->cpu_transcoder))) + continue; + + crtc_state->uapi.mode_changed = true; + + ret = drm_atomic_add_affected_connectors(&state->base, &crtc->base); + if (ret) + return ret; + + ret = drm_atomic_add_affected_planes(&state->base, &crtc->base); + if (ret) + return ret; + + transcoders &= ~BIT(crtc_state->cpu_transcoder); + } + + WARN_ON(transcoders != 0); + + return 0; +} + +static int intel_modeset_synced_crtcs(struct intel_atomic_state *state, + struct drm_connector *connector) +{ + const struct drm_connector_state *old_conn_state = + drm_atomic_get_old_connector_state(&state->base, connector); + const struct intel_crtc_state *old_crtc_state; + struct intel_crtc *crtc; + u8 transcoders; + + crtc = to_intel_crtc(old_conn_state->crtc); + if (!crtc) + return 0; + + old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc); + + if (!old_crtc_state->hw.active) + return 0; + + transcoders = old_crtc_state->sync_mode_slaves_mask; + if (old_crtc_state->master_transcoder != INVALID_TRANSCODER) + transcoders |= BIT(old_crtc_state->master_transcoder); + + return intel_modeset_affected_transcoders(state, + transcoders); +} + +static int intel_dp_connector_atomic_check(struct drm_connector *conn, + struct drm_atomic_state *_state) +{ + struct drm_i915_private *dev_priv = to_i915(conn->dev); + struct intel_atomic_state *state = to_intel_atomic_state(_state); + int ret; + + ret = intel_digital_connector_atomic_check(conn, &state->base); + if (ret) + return ret; + + if (INTEL_GEN(dev_priv) < 11) + 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) + return ret; + } + + return intel_modeset_synced_crtcs(state, conn); +} + static const struct drm_connector_funcs intel_dp_connector_funcs = { .force = intel_dp_force, .fill_modes = drm_helper_probe_single_connector_modes, @@ -6601,7 +6735,7 @@ static const struct drm_connector_helper_funcs intel_dp_connector_helper_funcs = .detect_ctx = intel_dp_detect, .get_modes = intel_dp_get_modes, .mode_valid = intel_dp_mode_valid, - .atomic_check = intel_digital_connector_atomic_check, + .atomic_check = intel_dp_connector_atomic_check, }; static const struct drm_encoder_funcs intel_dp_enc_funcs = { -- 2.11.0