From patchwork Thu May 11 09:06:01 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 9723331 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 39393600CB for ; Fri, 12 May 2017 00:40:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 31919287E1 for ; Fri, 12 May 2017 00:40:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1D12B287B3; Fri, 12 May 2017 00:40:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 41EDC287C0 for ; Fri, 12 May 2017 00:40:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 639C66E612; Fri, 12 May 2017 00:39:47 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtprelay.synopsys.com (smtprelay.synopsys.com [198.182.47.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1D4AB6E48A for ; Thu, 11 May 2017 09:06:50 +0000 (UTC) Received: from mailhost.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id D853624E078B; Thu, 11 May 2017 02:06:49 -0700 (PDT) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id BB0CEE66; Thu, 11 May 2017 02:06:49 -0700 (PDT) Received: from joabreu-VirtualBox.internal.synopsys.com (joabreu-e7440.internal.synopsys.com [10.107.19.43]) by mailhost.synopsys.com (Postfix) with ESMTP id 8B089E37; Thu, 11 May 2017 02:06:47 -0700 (PDT) From: Jose Abreu To: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 5/6] drm: Use mode_valid() in atomic modeset Date: Thu, 11 May 2017 10:06:01 +0100 Message-Id: <2e5037b9bb5ff2bb821b2664148698764a4e2899.1494492646.git.joabreu@synopsys.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: MIME-Version: 1.0 X-Mailman-Approved-At: Fri, 12 May 2017 00:39:44 +0000 Cc: Jose Abreu , Daniel Vetter , Alexey Brodkin , Carlos Palminha X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patches makes use of the new mode_valid() callbacks introduced previously to validate the full video pipeline when modesetting. This calls the encoder->mode_valid(), bridge->mode_valid() and crtc->mode_valid() so that we can make sure that the mode will be accepted in every components. Signed-off-by: Jose Abreu Cc: Carlos Palminha Cc: Alexey Brodkin Cc: Ville Syrjälä Cc: Daniel Vetter Cc: Dave Airlie Cc: Andrzej Hajda Cc: Archit Taneja Reviewed-by: Andrzej Hajda --- Changes v1->v2: - Removed call to connector->mode_valid (Ville, Daniel) - Change function name (Ville) - Use for_each_new_connector_in_state (Ville) - Do not validate if connector and mode didn't change (Ville) - Use new helpers to call mode_valid drivers/gpu/drm/drm_atomic_helper.c | 76 +++++++++++++++++++++++++++++++++++-- 1 file changed, 73 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 8be9719..5a3c458 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -32,6 +32,7 @@ #include #include +#include "drm_crtc_helper_internal.h" #include "drm_crtc_internal.h" /** @@ -452,6 +453,69 @@ static int handle_conflicting_encoders(struct drm_atomic_state *state, return 0; } +static enum drm_mode_status mode_valid_path(struct drm_connector *connector, + struct drm_encoder *encoder, + struct drm_crtc *crtc, + struct drm_display_mode *mode) +{ + enum drm_mode_status ret; + + ret = drm_encoder_mode_valid(encoder, mode); + if (ret != MODE_OK) { + DRM_DEBUG_ATOMIC("[ENCODER:%d:%s] mode_valid() failed\n", + encoder->base.id, encoder->name); + return ret; + } + + ret = drm_bridge_mode_valid(encoder->bridge, mode); + if (ret != MODE_OK) { + DRM_DEBUG_ATOMIC("[BRIDGE] mode_valid() failed\n"); + return ret; + } + + ret = drm_crtc_mode_valid(crtc, mode); + if (ret != MODE_OK) { + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] mode_valid() failed\n", + crtc->base.id, crtc->name); + return ret; + } + + return ret; +} + +static int +mode_valid(struct drm_atomic_state *state) +{ + struct drm_connector_state *conn_state; + struct drm_connector *connector; + int i; + + for_each_new_connector_in_state(state, connector, conn_state, i) { + struct drm_encoder *encoder = conn_state->best_encoder; + struct drm_crtc *crtc = conn_state->crtc; + struct drm_crtc_state *crtc_state; + enum drm_mode_status mode_status; + struct drm_display_mode *mode; + + if (!crtc || !encoder) + continue; + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + if (!crtc_state) + continue; + if (!crtc_state->mode_changed && !crtc_state->connectors_changed) + continue; + + mode = &crtc_state->mode; + + mode_status = mode_valid_path(connector, encoder, crtc, mode); + if (mode_status != MODE_OK) + return -EINVAL; + } + + return 0; +} + /** * drm_atomic_helper_check_modeset - validate state object for modeset changes * @dev: DRM device @@ -466,13 +530,15 @@ static int handle_conflicting_encoders(struct drm_atomic_state *state, * 2. &drm_connector_helper_funcs.atomic_check to validate the connector state. * 3. If it's determined a modeset is needed then all connectors on the affected crtc * crtc are added and &drm_connector_helper_funcs.atomic_check is run on them. - * 4. &drm_bridge_funcs.mode_fixup is called on all encoder bridges. - * 5. &drm_encoder_helper_funcs.atomic_check is called to validate any encoder state. + * 4. &drm_encoder_helper_funcs.mode_valid, &drm_bridge_funcs.mode_valid and + * &drm_crtc_helper_funcs.mode_valid are called on the affected components. + * 5. &drm_bridge_funcs.mode_fixup is called on all encoder bridges. + * 6. &drm_encoder_helper_funcs.atomic_check is called to validate any encoder state. * This function is only called when the encoder will be part of a configured crtc, * it must not be used for implementing connector property validation. * If this function is NULL, &drm_atomic_encoder_helper_funcs.mode_fixup is called * instead. - * 6. &drm_crtc_helper_funcs.mode_fixup is called last, to fix up the mode with crtc constraints. + * 7. &drm_crtc_helper_funcs.mode_fixup is called last, to fix up the mode with crtc constraints. * * &drm_crtc_state.mode_changed is set when the input mode is changed. * &drm_crtc_state.connectors_changed is set when a connector is added or @@ -617,6 +683,10 @@ static int handle_conflicting_encoders(struct drm_atomic_state *state, return ret; } + ret = mode_valid(state); + if (ret) + return ret; + return mode_fixup(state); } EXPORT_SYMBOL(drm_atomic_helper_check_modeset);