From patchwork Wed May 11 22:58:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 12846697 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 EC39BC433EF for ; Wed, 11 May 2022 22:58:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348952AbiEKW6b (ORCPT ); Wed, 11 May 2022 18:58:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348951AbiEKW6b (ORCPT ); Wed, 11 May 2022 18:58:31 -0400 Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5585E6D19C for ; Wed, 11 May 2022 15:58:30 -0700 (PDT) Received: by mail-pj1-x1036.google.com with SMTP id cq17-20020a17090af99100b001dc0386cd8fso3297271pjb.5 for ; Wed, 11 May 2022 15:58:30 -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=LOtUBAROt8+wSZqck5ELJgqyUVB2vFhXIURSscRlUY4=; b=DvS+M4uoPyOP2cGbinXkmJFSQjV7jAHY/pFLgs8BVJNOUo0IhmEtaQJDeZHy7n0lI9 oJRkHDmPw+hhwekGiNi5e1/y3wX4HUtf9Ex8LYcFQqLfrCZDwVhYeN9JeMQ6Mf705WIW DutFGsRV7NOEn10hg2nVrhHFue4sJs80E8JkQ= 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=LOtUBAROt8+wSZqck5ELJgqyUVB2vFhXIURSscRlUY4=; b=mLDWUKAwxWm+pyJsgnD9M7pWrOulqWP7KI+/70PtOpHJUJ0vzT3lkuYXv6jd25UuQf sgTi4QP4iFVasTTMnD3GGpC7Pi/7kUhN7GiIPnGaIBSqrhaMAZPAVhVIvn8FOiY1vJRz q+/7iCLNrtCbDfff5g+D2FBgZ7F/qAaHVMun+LM7Nwn4nQ4+D9gWvZpWtJSAo8k+OBIf TBRs0Kr3vyKnbXzSghMV/ZEVe3A4HaQDVwuLiFIBMrK8L5oBESRjt/1kVb7KkHzhLwVy tk73Z/qImPSEYie7V87f9/0MMjh434GoxE99mPdKUI5f6SLBnqLGZ9R+q1YdPCcB4Myz 8G9w== X-Gm-Message-State: AOAM531slZKixSB9GvFLGipbgllWdBDfc7/p2wd+ZqWHJwQGC5yUpwRq 3dHloeVZBO6lSc7NnEfs+E8LfA== X-Google-Smtp-Source: ABdhPJz/rySupxeHwGcIIPekwo8CUfSHZrQcTijT7+Ndv2m0tuN4p9CM6EMMOqwz7W+WeipOlPBNkw== X-Received: by 2002:a17:903:18c:b0:15e:be98:90ef with SMTP id z12-20020a170903018c00b0015ebe9890efmr27017500plg.129.1652309909866; Wed, 11 May 2022 15:58:29 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:201:504e:720d:de58:4f66]) by smtp.gmail.com with ESMTPSA id n5-20020a170902968500b0015e8d4eb1easm2399714plp.52.2022.05.11.15.58.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 May 2022 15:58:29 -0700 (PDT) From: Douglas Anderson To: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org, swboyd@chromium.org, quic_khsieh@quicinc.com, quic_sbillaka@quicinc.com, quic_abhinavk@quicinc.com, ville.syrjala@linux.intel.com, quic_aravindh@quicinc.com, tzimmermann@suse.de, dmitry.baryshkov@linaro.org, robdclark@gmail.com, linux-arm-msm@vger.kernel.org, Douglas Anderson , Daniel Vetter , David Airlie , Maarten Lankhorst , Maxime Ripard , linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] drm/probe-helper: Add helper for drm_helper_probe_single_connector_modes() Date: Wed, 11 May 2022 15:58:07 -0700 Message-Id: <20220511155749.v3.1.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 Reviewed-by: Dmitry Baryshkov --- Changes in v3: - Removed WARN_ON 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 | 106 ++++++++++++++++------------- 1 file changed, 60 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 682359512996..2570d47e7eab 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 +573,12 @@ 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); } prune: