From patchwork Thu Dec 19 21:51:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Navare, Manasi" X-Patchwork-Id: 11304449 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 048F013A4 for ; Thu, 19 Dec 2019 21:50:00 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E04D624672 for ; Thu, 19 Dec 2019 21:49:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E04D624672 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 69EA46EB9C; Thu, 19 Dec 2019 21:49:55 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id B16B96EB9B for ; Thu, 19 Dec 2019 21:49:53 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Dec 2019 13:49:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,333,1571727600"; d="scan'208";a="228389312" Received: from labuser-z97x-ud5h.jf.intel.com ([10.54.75.49]) by orsmga002.jf.intel.com with ESMTP; 19 Dec 2019 13:49:52 -0800 From: Manasi Navare To: intel-gfx@lists.freedesktop.org Date: Thu, 19 Dec 2019 13:51:16 -0800 Message-Id: <20191219215117.929-2-manasi.d.navare@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20191219215117.929-1-manasi.d.navare@intel.com> References: <20191219215117.929-1-manasi.d.navare@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 2/3] drm/i915/dp: Make port sync mode assignments only if all tiles present X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Add an extra check before making master slave assignments for tiled displays to make sure we make these assignments only if all tiled connectors are present. If not then initialize the state to defaults so it does a normal non tiled modeset without transcoder port sync. v2: * Rename icl_add_sync_mode_crtcs * Move this function just before .compute_config hook * Check if DP before master slave assignments (Ville) Bugzilla: https://gitlab.freedesktop.org/drm/intel/issues/5 Cc: Ville Syrjälä Signed-off-by: Manasi Navare Acked-by: Ville Syrjälä --- drivers/gpu/drm/i915/display/intel_display.c | 162 +++++++++++-------- 1 file changed, 99 insertions(+), 63 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 00608d8cef50..9c1b1256be68 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -12014,88 +12014,106 @@ static bool c8_planes_changed(const struct intel_crtc_state *new_crtc_state) return !old_crtc_state->c8_planes != !new_crtc_state->c8_planes; } -static int icl_add_sync_mode_crtcs(struct intel_crtc_state *crtc_state) +static void reset_port_sync_mode_state(struct intel_crtc_state *crtc_state) +{ + crtc_state->master_transcoder = INVALID_TRANSCODER; + crtc_state->sync_mode_slaves_mask = 0; +} + +static int icl_compute_port_sync_crtc_state(struct drm_connector *connector, + struct intel_crtc_state *crtc_state, + int num_tiled_conns) { struct drm_crtc *crtc = crtc_state->uapi.crtc; struct intel_atomic_state *state = to_intel_atomic_state(crtc_state->uapi.state); struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); - struct drm_connector *master_connector, *connector; - struct drm_connector_state *connector_state; + struct drm_connector *master_connector; struct drm_connector_list_iter conn_iter; struct drm_crtc *master_crtc = NULL; struct drm_crtc_state *master_crtc_state; struct intel_crtc_state *master_pipe_config; - int i, tile_group_id; if (INTEL_GEN(dev_priv) < 11) return 0; + if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP)) + return 0; + /* * In case of tiled displays there could be one or more slaves but there is * only one master. Lets make the CRTC used by the connector corresponding * to the last horizonal and last vertical tile a master/genlock CRTC. * All the other CRTCs corresponding to other tiles of the same Tile group * are the slave CRTCs and hold a pointer to their genlock CRTC. + * If all tiles not present do not make master slave assignments. + * + * FIXME: Add support for multiple tile grp ids in the future when such + * panels are available. */ - for_each_new_connector_in_state(&state->base, connector, connector_state, i) { - if (connector_state->crtc != crtc) - continue; - if (!connector->has_tile) + if (!connector->has_tile || + crtc_state->hw.mode.hdisplay != connector->tile_h_size || + crtc_state->hw.mode.vdisplay != connector->tile_v_size || + num_tiled_conns < connector->num_h_tile * connector->num_v_tile) { + reset_port_sync_mode_state(crtc_state); + return 0; + } + /* Last Horizontal and last vertical tile connector is a master + * Master Trans for a Master CRTC is always INVALID. + */ + if (connector->tile_h_loc == connector->num_h_tile - 1 && + connector->tile_v_loc == connector->num_v_tile - 1) { + crtc_state->master_transcoder = INVALID_TRANSCODER; + return 0; + } + + /* Loop through all connectors and configure the Slave crtc_state + * to point to the correct master. + */ + reset_port_sync_mode_state(crtc_state); + drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); + drm_for_each_connector_iter(master_connector, &conn_iter) { + struct drm_connector_state *master_conn_state = NULL; + + if (!(master_connector->has_tile && + master_connector->tile_group->id == connector->tile_group->id)) continue; - if (crtc_state->hw.mode.hdisplay != connector->tile_h_size || - crtc_state->hw.mode.vdisplay != connector->tile_v_size) - return 0; - if (connector->tile_h_loc == connector->num_h_tile - 1 && - connector->tile_v_loc == connector->num_v_tile - 1) + if (master_connector->tile_h_loc != master_connector->num_h_tile - 1 || + master_connector->tile_v_loc != master_connector->num_v_tile - 1) continue; - crtc_state->sync_mode_slaves_mask = 0; - tile_group_id = connector->tile_group->id; - drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); - drm_for_each_connector_iter(master_connector, &conn_iter) { - struct drm_connector_state *master_conn_state = NULL; - if (!master_connector->has_tile) - continue; - if (master_connector->tile_h_loc != master_connector->num_h_tile - 1 || - master_connector->tile_v_loc != master_connector->num_v_tile - 1) - continue; - if (master_connector->tile_group->id != tile_group_id) - continue; - - master_conn_state = drm_atomic_get_connector_state(&state->base, - master_connector); - if (IS_ERR(master_conn_state)) { - drm_connector_list_iter_end(&conn_iter); - return PTR_ERR(master_conn_state); - } - if (master_conn_state->crtc) { - master_crtc = master_conn_state->crtc; - break; - } + master_conn_state = drm_atomic_get_connector_state(&state->base, + master_connector); + if (IS_ERR(master_conn_state)) { + drm_connector_list_iter_end(&conn_iter); + return PTR_ERR(master_conn_state); } - drm_connector_list_iter_end(&conn_iter); - - if (!master_crtc) { - DRM_DEBUG_KMS("Could not find Master CRTC for Slave CRTC %d\n", - connector_state->crtc->base.id); - return -EINVAL; + if (master_conn_state->crtc) { + master_crtc = master_conn_state->crtc; + break; } + } + drm_connector_list_iter_end(&conn_iter); - master_crtc_state = drm_atomic_get_crtc_state(&state->base, - master_crtc); - if (IS_ERR(master_crtc_state)) - return PTR_ERR(master_crtc_state); - - master_pipe_config = to_intel_crtc_state(master_crtc_state); - crtc_state->master_transcoder = master_pipe_config->cpu_transcoder; - master_pipe_config->sync_mode_slaves_mask |= - BIT(crtc_state->cpu_transcoder); - DRM_DEBUG_KMS("Master Transcoder = %s added for Slave CRTC = %d, slave transcoder bitmask = %d\n", - transcoder_name(crtc_state->master_transcoder), - crtc_state->uapi.crtc->base.id, - master_pipe_config->sync_mode_slaves_mask); + if (!master_crtc) { + DRM_DEBUG_KMS("Could not find Master CRTC for Slave CRTC %d\n", + crtc->base.id); + return -EINVAL; } + master_crtc_state = drm_atomic_get_crtc_state(&state->base, + master_crtc); + if (IS_ERR(master_crtc_state)) + return PTR_ERR(master_crtc_state); + + master_pipe_config = to_intel_crtc_state(master_crtc_state); + crtc_state->master_transcoder = master_pipe_config->cpu_transcoder; + master_pipe_config->sync_mode_slaves_mask |= + BIT(crtc_state->cpu_transcoder); + DRM_DEBUG_KMS("Master Transcoder = %s added for Slave CRTC = %d, slave transcoder bitmask = %d\n", + transcoder_name(crtc_state->master_transcoder), + crtc->base.id, + master_pipe_config->sync_mode_slaves_mask); + return 0; } @@ -12660,7 +12678,7 @@ intel_modeset_pipe_config(struct intel_crtc_state *pipe_config) struct drm_connector *connector; struct drm_connector_state *connector_state; int base_bpp, ret; - int i; + int i, tile_group_id = -1, num_tiled_conns = 0; bool retry = true; pipe_config->cpu_transcoder = @@ -12730,13 +12748,23 @@ intel_modeset_pipe_config(struct intel_crtc_state *pipe_config) drm_mode_set_crtcinfo(&pipe_config->hw.adjusted_mode, CRTC_STEREO_DOUBLE); - /* Set the crtc_state defaults for trans_port_sync */ - pipe_config->master_transcoder = INVALID_TRANSCODER; - ret = icl_add_sync_mode_crtcs(pipe_config); - if (ret) { - DRM_DEBUG_KMS("Cannot assign Sync Mode CRTCs: %d\n", - ret); - return ret; + + /* Get tile_group_id of tiled connector */ + for_each_new_connector_in_state(state, connector, connector_state, i) { + if (connector_state->crtc == crtc && + connector->has_tile) { + tile_group_id = connector->tile_group->id; + break; + } + } + + /* Get total number of tiled connectors in state that belong to + * this tile group. + */ + for_each_new_connector_in_state(state, connector, connector_state, i) { + if (connector->has_tile && + connector->tile_group->id == tile_group_id) + num_tiled_conns++; } /* Pass our mode to the connectors and the CRTC to give them a chance to @@ -12747,6 +12775,14 @@ intel_modeset_pipe_config(struct intel_crtc_state *pipe_config) if (connector_state->crtc != crtc) continue; + ret = icl_compute_port_sync_crtc_state(connector, pipe_config, + num_tiled_conns); + if (ret) { + DRM_DEBUG_KMS("Cannot assign Sync Mode CRTCs: %d\n", + ret); + return ret; + } + encoder = to_intel_encoder(connector_state->best_encoder); ret = encoder->compute_config(encoder, pipe_config, connector_state);