From patchwork Tue May 10 20:13:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 12845476 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5925BC433EF for ; Tue, 10 May 2022 20:14:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233729AbiEJUOH (ORCPT ); Tue, 10 May 2022 16:14:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230217AbiEJUOE (ORCPT ); Tue, 10 May 2022 16:14:04 -0400 Received: from mail-pf1-x430.google.com (mail-pf1-x430.google.com [IPv6:2607:f8b0:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 673121AD9D for ; Tue, 10 May 2022 13:14:03 -0700 (PDT) Received: by mail-pf1-x430.google.com with SMTP id y41so89232pfw.12 for ; Tue, 10 May 2022 13:14:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=DUzehr5/WVjL8qU2Hhmc4z1UOFK/igoFfwz7SYv3SuU=; b=FK/uP2sqm4PA+iTuTOw9AHlnxLeLvs/2DmFJjZLlevCJ0Os/8Ujbb3/YC/pvOZsdOy EGV440Vp4/1/E6YECIBaKnkqtGYVEHdAKOM5nB8H5VCLOQxC/guqkvRpnPOucq1azu5G H3sTB/LkQLnn/UUjLSL3LzZCHo8Z82aa5CLxU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=DUzehr5/WVjL8qU2Hhmc4z1UOFK/igoFfwz7SYv3SuU=; b=GGPGwQXU2xJps14/dZZuJ188Q4dhNr/0aUY88K7qt2gqqNvUYGZMbusXStUtIHrEFV oBSxfvqiZDYKAb+xU4PVixW8KKiUSG8Ut9ZpJaUtrBDZGViGr3n/EFU85uEQCMuS+ZxX 4sjKZJ+OFLhn9uRNJpq8dYLmdOtz99mc11NlIFodXAhmvBNigG91Ni6kHlXWidbpmgyw rrsv43l6YmJiuMCn2/2I04SeftmmcKxSrpSJLtsyaAQXjCYORgyITQuvYW+rFBcU0pTH bUDan8DTNcj3FkOriz1+M3zQX5MBW0sLawJI62I+fhMYmkrZIq+jXJ0s4d5H7dDwjA8q JNNA== X-Gm-Message-State: AOAM533CNqmgQj+GK+BHGJOlAC19nFrAuP9B8Tm4qy5IAu5hILWL/0Ty 5PlCgerZqTAol+cFDf177ZBtzQ== X-Google-Smtp-Source: ABdhPJw1DnT71ONYuAfGck1I9ifq2RpS3pd461/n3OJS5+buAJwc493OLPwnPeGsVXsyy6glR2bqxA== X-Received: by 2002:a62:1d09:0:b0:50d:fa91:a4c5 with SMTP id d9-20020a621d09000000b0050dfa91a4c5mr22174472pfd.25.1652213642912; Tue, 10 May 2022 13:14:02 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:201:6f08:624c:c762:d238]) by smtp.gmail.com with ESMTPSA id h8-20020a170902704800b0015e8d4eb247sm26605plt.145.2022.05.10.13.14.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 May 2022 13:14:02 -0700 (PDT) From: Douglas Anderson To: dri-devel@lists.freedesktop.org Cc: quic_khsieh@quicinc.com, dmitry.baryshkov@linaro.org, quic_sbillaka@quicinc.com, quic_aravindh@quicinc.com, freedreno@lists.freedesktop.org, ville.syrjala@linux.intel.com, quic_abhinavk@quicinc.com, robdclark@gmail.com, linux-arm-msm@vger.kernel.org, swboyd@chromium.org, tzimmermann@suse.de, Douglas Anderson , Daniel Vetter , David Airlie , Maarten Lankhorst , Maxime Ripard , linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] drm/probe-helper: Add helper for drm_helper_probe_single_connector_modes() Date: Tue, 10 May 2022 13:13:33 -0700 Message-Id: <20220510131309.v2.1.I2dd93486c6952bd52f2020904de0133970d11b29@changeid> X-Mailer: git-send-email 2.36.0.550.gb090851708-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The drm_helper_probe_single_connector_modes() is a bit long. Let's break a chunk off to update and validate modes. This helps avoid one goto and also will allow us to more easily call the helper a second time in a future patch without adding looping or another goto. This change is intended to be a no-op change--just code movement. Signed-off-by: Douglas Anderson Reviewed-by: Abhinav Kumar Reviewed-by: Thomas Zimmermann --- Changes in v2: - Two underscores for __drm_helper_update_and_validate(). - Return err and use WARN_ON instead of returning a bool. drivers/gpu/drm/drm_probe_helper.c | 107 ++++++++++++++++------------- 1 file changed, 61 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 682359512996..ff3dd9a5da70 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -354,6 +354,61 @@ drm_helper_probe_detect(struct drm_connector *connector, } EXPORT_SYMBOL(drm_helper_probe_detect); +static int __drm_helper_update_and_validate(struct drm_connector *connector, + uint32_t maxX, uint32_t maxY, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_device *dev = connector->dev; + struct drm_display_mode *mode; + int mode_flags = 0; + int ret; + + drm_connector_list_update(connector); + + if (connector->interlace_allowed) + mode_flags |= DRM_MODE_FLAG_INTERLACE; + if (connector->doublescan_allowed) + mode_flags |= DRM_MODE_FLAG_DBLSCAN; + if (connector->stereo_allowed) + mode_flags |= DRM_MODE_FLAG_3D_MASK; + + list_for_each_entry(mode, &connector->modes, head) { + if (mode->status != MODE_OK) + continue; + + mode->status = drm_mode_validate_driver(dev, mode); + if (mode->status != MODE_OK) + continue; + + mode->status = drm_mode_validate_size(mode, maxX, maxY); + if (mode->status != MODE_OK) + continue; + + mode->status = drm_mode_validate_flag(mode, mode_flags); + if (mode->status != MODE_OK) + continue; + + ret = drm_mode_validate_pipeline(mode, connector, ctx, + &mode->status); + if (ret) { + drm_dbg_kms(dev, + "drm_mode_validate_pipeline failed: %d\n", + ret); + + if (drm_WARN_ON_ONCE(dev, ret != -EDEADLK)) + mode->status = MODE_ERROR; + else + return -EDEADLK; + } + + if (mode->status != MODE_OK) + continue; + mode->status = drm_mode_validate_ycbcr420(mode, connector); + } + + return 0; +} + /** * drm_helper_probe_single_connector_modes - get complete set of display modes * @connector: connector to probe @@ -421,7 +476,6 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; int count = 0, ret; - int mode_flags = 0; bool verbose_prune = true; enum drm_connector_status old_status; struct drm_modeset_acquire_ctx ctx; @@ -519,52 +573,13 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, connector->status == connector_status_unknown)) count = drm_add_modes_noedid(connector, 1024, 768); count += drm_helper_probe_add_cmdline_mode(connector); - if (count == 0) - goto prune; - - drm_connector_list_update(connector); - - if (connector->interlace_allowed) - mode_flags |= DRM_MODE_FLAG_INTERLACE; - if (connector->doublescan_allowed) - mode_flags |= DRM_MODE_FLAG_DBLSCAN; - if (connector->stereo_allowed) - mode_flags |= DRM_MODE_FLAG_3D_MASK; - - list_for_each_entry(mode, &connector->modes, head) { - if (mode->status != MODE_OK) - continue; - - mode->status = drm_mode_validate_driver(dev, mode); - if (mode->status != MODE_OK) - continue; - - mode->status = drm_mode_validate_size(mode, maxX, maxY); - if (mode->status != MODE_OK) - continue; - - mode->status = drm_mode_validate_flag(mode, mode_flags); - if (mode->status != MODE_OK) - continue; - - ret = drm_mode_validate_pipeline(mode, connector, &ctx, - &mode->status); - if (ret) { - drm_dbg_kms(dev, - "drm_mode_validate_pipeline failed: %d\n", - ret); - - if (drm_WARN_ON_ONCE(dev, ret != -EDEADLK)) { - mode->status = MODE_ERROR; - } else { - drm_modeset_backoff(&ctx); - goto retry; - } + if (count != 0) { + ret = __drm_helper_update_and_validate(connector, maxX, maxY, &ctx); + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry; } - - if (mode->status != MODE_OK) - continue; - mode->status = drm_mode_validate_ycbcr420(mode, connector); + WARN_ON(ret); } prune: