From patchwork Tue Jan 24 13:40:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114117 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 A7103C25B4E for ; Tue, 24 Jan 2023 13:40:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233967AbjAXNkP (ORCPT ); Tue, 24 Jan 2023 08:40:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59640 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233030AbjAXNkO (ORCPT ); Tue, 24 Jan 2023 08:40:14 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5DA6F302A5; Tue, 24 Jan 2023 05:40:13 -0800 (PST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id EEB011FDBF; Tue, 24 Jan 2023 13:40:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674567611; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bkFQqvsdRxbFh+T/xgjgYaZo/8sz/0LHQ7jzsk0ZmNc=; b=ZM9perR3zfHsbqddSsBIqCNYfegdPwzpG5QiOfR5H6SGs/rzEyIxETO2dWv95am94wnLXs tY8wy1o6wAgZP4BtE+qXyiYJjI+Ywn7X5gE/m030vLjoMjYPI+MGNG4WbehltB6BlGrpci 0qYeolhSrNCglLsvcJu774/ZuJlTidg= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674567611; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bkFQqvsdRxbFh+T/xgjgYaZo/8sz/0LHQ7jzsk0ZmNc=; b=vHhgPBAuqrG4dLoI1MubNO5r3KDCDwlxIjcCqBi2c+bZo8b2bRA2COsoC9e+WV57p9N/rQ 2EI5OVQohJCOWECQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id A856B13487; Tue, 24 Jan 2023 13:40:11 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id +B4MKLvfz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:11 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 01/10] drm/client: Test for connectors before sending hotplug event Date: Tue, 24 Jan 2023 14:40:01 +0100 Message-Id: <20230124134010.30263-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Test for connectors in the client code and remove a similar test from the generic fbdev emulation. Do nothing if the test fails. Not having connectors indicates a driver bug. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_client.c | 5 +++++ drivers/gpu/drm/drm_fbdev_generic.c | 5 ----- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index 262ec64d4397..09ac191c202d 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -198,6 +198,11 @@ void drm_client_dev_hotplug(struct drm_device *dev) if (!drm_core_check_feature(dev, DRIVER_MODESET)) return; + if (!dev->mode_config.num_connector) { + drm_dbg_kms(dev, "No connectors found, will not send hotplug events!\n"); + return; + } + mutex_lock(&dev->clientlist_mutex); list_for_each_entry(client, &dev->clientlist, list) { if (!client->funcs || !client->funcs->hotplug) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 0a4c160e0e58..3d455a2e3fb5 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -389,11 +389,6 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) if (dev->fb_helper) return drm_fb_helper_hotplug_event(dev->fb_helper); - if (!dev->mode_config.num_connector) { - drm_dbg_kms(dev, "No connectors found, will not create framebuffer!\n"); - return 0; - } - drm_fb_helper_prepare(dev, fb_helper, &drm_fb_helper_generic_funcs); ret = drm_fb_helper_init(dev, fb_helper); From patchwork Tue Jan 24 13:40:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114120 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 E0E9BC61DA7 for ; Tue, 24 Jan 2023 13:40:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234069AbjAXNkR (ORCPT ); Tue, 24 Jan 2023 08:40:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59646 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233934AbjAXNkO (ORCPT ); Tue, 24 Jan 2023 08:40:14 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9150E3754A; Tue, 24 Jan 2023 05:40:13 -0800 (PST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 44AC12187C; Tue, 24 Jan 2023 13:40:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674567612; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Eo0f0ziBdtPN9cBdDtmQB+JADnGJzSFyqXzDLQUPm/A=; b=0zjZSeeIiKnDLsONC7QfuWog3HHelQyQVKjRllqhFixFsSj7m9hNGZDcNa5GPpHKCVK9sD LtmSiXhDDdwF39KYiWojFsrTLbL8bEBYecX5cwQ2UWgh7uG6yeBDRqbPCIMnX4Sae3jYAx E7Al4o7LulEg4TCWlfdkj3SB5ybEin0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674567612; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Eo0f0ziBdtPN9cBdDtmQB+JADnGJzSFyqXzDLQUPm/A=; b=G31XWDRMxbO4uAuovcxnZpj/k+CfC/cj0SlkJw2m7Fu5z4fZsqXZVdCUA0h9v0Cc/4JaRZ MAo4PojcuqQI3FBQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id F35CE139FF; Tue, 24 Jan 2023 13:40:11 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 8AN8Orvfz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:11 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 02/10] drm/client: Add hotplug_failed flag Date: Tue, 24 Jan 2023 14:40:02 +0100 Message-Id: <20230124134010.30263-3-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Signal failed hotplugging with a flag in struct drm_client_dev. If set, the client helpers will not further try to set up the fbdev display. This used to be signalled with a combination of cleared pointers in struct drm_fb_helper, which prevents us from initializing these pointers early after allocation. The change also harmonizes behavior among DRM clients. Additional DRM clients will now handle failed hotplugging like fbdev does. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_client.c | 5 +++++ drivers/gpu/drm/drm_fbdev_generic.c | 4 ---- include/drm/drm_client.h | 8 ++++++++ 3 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index 09ac191c202d..009e7b10455c 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -208,8 +208,13 @@ void drm_client_dev_hotplug(struct drm_device *dev) if (!client->funcs || !client->funcs->hotplug) continue; + if (client->hotplug_failed) + continue; + ret = client->funcs->hotplug(client); drm_dbg_kms(dev, "%s: ret=%d\n", client->name, ret); + if (ret) + client->hotplug_failed = true; } mutex_unlock(&dev->clientlist_mutex); } diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 3d455a2e3fb5..135d58b8007b 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -382,10 +382,6 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) struct drm_device *dev = client->dev; int ret; - /* Setup is not retried if it has failed */ - if (!fb_helper->dev && fb_helper->funcs) - return 0; - if (dev->fb_helper) return drm_fb_helper_hotplug_event(dev->fb_helper); diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h index 4fc8018eddda..39482527a775 100644 --- a/include/drm/drm_client.h +++ b/include/drm/drm_client.h @@ -106,6 +106,14 @@ struct drm_client_dev { * @modesets: CRTC configurations */ struct drm_mode_set *modesets; + + /** + * @hotplug failed: + * + * Set by client hotplug helpers if the hotplugging failed + * before. It is usually not tried again. + */ + bool hotplug_failed; }; int drm_client_init(struct drm_device *dev, struct drm_client_dev *client, From patchwork Tue Jan 24 13:40:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114119 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 66692C61DA3 for ; Tue, 24 Jan 2023 13:40:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234238AbjAXNkR (ORCPT ); Tue, 24 Jan 2023 08:40:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233392AbjAXNkO (ORCPT ); Tue, 24 Jan 2023 08:40:14 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F39A63754D; Tue, 24 Jan 2023 05:40:13 -0800 (PST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 8FA201FDC3; Tue, 24 Jan 2023 13:40:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674567612; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jWHAeVwiu+7Pt1XKK8+Xbu9HCfPR9qcjYa+iK3HlDeo=; b=yiClVrJ58vs8iV78LiMLGdn+UPGtz9XD03fu7eyixwqJ39B/IP41Opy+RJGOfXcE6yKs/u hYieBJlA0nIFBJfSha4xAdkAKXh65ybZOVPI6F32QHpOCGl/BhVNQdZS6sBsjIOLZaeMlu H1zzWV/xxVhgDi+o6J/eRX0dgEVi9rY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674567612; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jWHAeVwiu+7Pt1XKK8+Xbu9HCfPR9qcjYa+iK3HlDeo=; b=7M0NCnXbuQxu9SAUTdw6OKsAcvxWhkzu1iDFMcy0gzkneSAbi5oACmbnipoXorPUEQNEC0 mTmkNm6zps7UzQCg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 4958E13487; Tue, 24 Jan 2023 13:40:12 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 8Kr0ELzfz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:12 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 03/10] drm/fb-helper: Introduce drm_fb_helper_unprepare() Date: Tue, 24 Jan 2023 14:40:03 +0100 Message-Id: <20230124134010.30263-4-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Move the fb-helper clean-up code into drm_fb_helper_unprepare(). No functional changes. v2: * declare as static inline (kernel test robot) Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_fb_helper.c | 14 +++++++++++++- include/drm/drm_fb_helper.h | 5 +++++ 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index c5c13e192b64..4379bcd7718b 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -435,6 +435,18 @@ void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, } EXPORT_SYMBOL(drm_fb_helper_prepare); +/** + * drm_fb_helper_unprepare - clean up a drm_fb_helper structure + * @fb_helper: driver-allocated fbdev helper structure to set up + * + * Cleans up the framebuffer helper. Inverse of drm_fb_helper_prepare(). + */ +void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper) +{ + mutex_destroy(&fb_helper->lock); +} +EXPORT_SYMBOL(drm_fb_helper_unprepare); + /** * drm_fb_helper_init - initialize a &struct drm_fb_helper * @dev: drm device @@ -561,7 +573,7 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper) } mutex_unlock(&kernel_fb_helper_lock); - mutex_destroy(&fb_helper->lock); + drm_fb_helper_unprepare(fb_helper); if (!fb_helper->client.funcs) drm_client_release(&fb_helper->client); diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index f443e1f11654..39710c570a04 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -230,6 +230,7 @@ drm_fb_helper_from_client(struct drm_client_dev *client) #ifdef CONFIG_DRM_FBDEV_EMULATION void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, const struct drm_fb_helper_funcs *funcs); +void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper); int drm_fb_helper_init(struct drm_device *dev, struct drm_fb_helper *helper); void drm_fb_helper_fini(struct drm_fb_helper *helper); int drm_fb_helper_blank(int blank, struct fb_info *info); @@ -296,6 +297,10 @@ static inline void drm_fb_helper_prepare(struct drm_device *dev, { } +static inline void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper) +{ +} + static inline int drm_fb_helper_init(struct drm_device *dev, struct drm_fb_helper *helper) { From patchwork Tue Jan 24 13:40:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114121 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 C50CDC636CC for ; Tue, 24 Jan 2023 13:40:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234242AbjAXNkS (ORCPT ); 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Tue, 24 Jan 2023 13:40:12 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 04/10] drm/fbdev-generic: Initialize fb-helper structure in generic setup Date: Tue, 24 Jan 2023 14:40:04 +0100 Message-Id: <20230124134010.30263-5-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Initialize the fb-helper structure immediately after its allocation in drm_fbdev_generic_setup(). That will make it easier to fill it with driver-specific values, such as the preferred BPP. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_fbdev_generic.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 135d58b8007b..63f66325a8a5 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -385,8 +385,6 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) if (dev->fb_helper) return drm_fb_helper_hotplug_event(dev->fb_helper); - drm_fb_helper_prepare(dev, fb_helper, &drm_fb_helper_generic_funcs); - ret = drm_fb_helper_init(dev, fb_helper); if (ret) goto err; @@ -456,12 +454,12 @@ void drm_fbdev_generic_setup(struct drm_device *dev, fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL); if (!fb_helper) return; + drm_fb_helper_prepare(dev, fb_helper, &drm_fb_helper_generic_funcs); ret = drm_client_init(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs); if (ret) { - kfree(fb_helper); drm_err(dev, "Failed to register client: %d\n", ret); - return; + goto err_drm_client_init; } /* @@ -484,5 +482,12 @@ void drm_fbdev_generic_setup(struct drm_device *dev, drm_dbg_kms(dev, "client hotplug ret=%d\n", ret); drm_client_register(&fb_helper->client); + + return; + +err_drm_client_init: + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); + return; } EXPORT_SYMBOL(drm_fbdev_generic_setup); From patchwork Tue Jan 24 13:40:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114122 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 48A99C636D6 for ; Tue, 24 Jan 2023 13:40:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234244AbjAXNkT (ORCPT ); Tue, 24 Jan 2023 08:40:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234230AbjAXNkP (ORCPT ); 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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674567613; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mHNXQj920Mp49rolvcUr11B4LETXxMqwdnjXrBs6lqg=; b=2t5VyELYo2xzGMStdJCIQmdZSY3K46QbD0wREcAD7flf6K5R2dMyhssq5uu8qvm2s6Tbz5 akV5cOY54bNrZbAA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id DB31D13487; Tue, 24 Jan 2023 13:40:12 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id aApyNLzfz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:12 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 05/10] drm/fb-helper: Remove preferred_bpp parameter from fbdev internals Date: Tue, 24 Jan 2023 14:40:05 +0100 Message-Id: <20230124134010.30263-6-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Store the console's preferred BPP value in struct drm_fb_helper and remove the respective function parameters from the internal fbdev code. The BPP value is only required as a fallback and will now always be available in the fb-helper instance. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_fb_helper.c | 26 ++++++++++++-------------- 1 file changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 4379bcd7718b..258103d317ac 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1786,7 +1786,7 @@ static uint32_t drm_fb_helper_find_color_mode_format(struct drm_fb_helper *fb_he return drm_fb_helper_find_format(fb_helper, formats, format_count, bpp, depth); } -static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferred_bpp, +static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes) { struct drm_client_dev *client = &fb_helper->client; @@ -1831,7 +1831,7 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int prefe surface_format = drm_fb_helper_find_color_mode_format(fb_helper, plane->format_types, plane->format_count, - preferred_bpp); + fb_helper->preferred_bpp); if (surface_format != DRM_FORMAT_INVALID) break; /* found supported format */ } @@ -1903,7 +1903,7 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int prefe return 0; } -static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferred_bpp, +static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes) { struct drm_client_dev *client = &fb_helper->client; @@ -1912,7 +1912,7 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferr int ret; mutex_lock(&client->modeset_mutex); - ret = __drm_fb_helper_find_sizes(fb_helper, preferred_bpp, sizes); + ret = __drm_fb_helper_find_sizes(fb_helper, sizes); mutex_unlock(&client->modeset_mutex); if (ret) @@ -1934,15 +1934,14 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferr * Allocates the backing storage and sets up the fbdev info structure through * the ->fb_probe callback. */ -static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, - int preferred_bpp) +static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper) { struct drm_client_dev *client = &fb_helper->client; struct drm_device *dev = fb_helper->dev; struct drm_fb_helper_surface_size sizes; int ret; - ret = drm_fb_helper_find_sizes(fb_helper, preferred_bpp, &sizes); + ret = drm_fb_helper_find_sizes(fb_helper, &sizes); if (ret) { /* First time: disable all crtc's.. */ if (!fb_helper->deferred_setup) @@ -2125,8 +2124,7 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper) /* Note: Drops fb_helper->lock before returning. */ static int -__drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper, - int bpp_sel) +__drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper) { struct drm_device *dev = fb_helper->dev; struct fb_info *info; @@ -2137,10 +2135,9 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper, height = dev->mode_config.max_height; drm_client_modeset_probe(&fb_helper->client, width, height); - ret = drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); + ret = drm_fb_helper_single_fb_probe(fb_helper); if (ret < 0) { if (ret == -EAGAIN) { - fb_helper->preferred_bpp = bpp_sel; fb_helper->deferred_setup = true; ret = 0; } @@ -2231,8 +2228,10 @@ int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) if (!drm_fbdev_emulation) return 0; + fb_helper->preferred_bpp = bpp_sel; + mutex_lock(&fb_helper->lock); - ret = __drm_fb_helper_initial_config_and_unlock(fb_helper, bpp_sel); + ret = __drm_fb_helper_initial_config_and_unlock(fb_helper); return ret; } @@ -2268,8 +2267,7 @@ int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) mutex_lock(&fb_helper->lock); if (fb_helper->deferred_setup) { - err = __drm_fb_helper_initial_config_and_unlock(fb_helper, - fb_helper->preferred_bpp); + err = __drm_fb_helper_initial_config_and_unlock(fb_helper); return err; } From patchwork Tue Jan 24 13:40:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114127 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 0C33BC64EC4 for ; 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Tue, 24 Jan 2023 13:40:13 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id iMXEC73fz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:13 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 06/10] drm/fb-helper: Initialize fb-helper's preferred BPP in prepare function Date: Tue, 24 Jan 2023 14:40:06 +0100 Message-Id: <20230124134010.30263-7-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Initialize the fb-helper's preferred_bpp field early from within drm_fb_helper_prepare(); instead of the later client hot-plugging callback. This simplifies the generic fbdev setup function. No real changes, but all drivers' fbdev code has to be adapted. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/armada/armada_fbdev.c | 4 ++-- drivers/gpu/drm/drm_fb_helper.c | 22 ++++++++++++++++++---- drivers/gpu/drm/drm_fbdev_generic.c | 19 ++----------------- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 4 ++-- drivers/gpu/drm/gma500/framebuffer.c | 4 ++-- drivers/gpu/drm/i915/display/intel_fbdev.c | 11 ++++++----- drivers/gpu/drm/msm/msm_fbdev.c | 4 ++-- drivers/gpu/drm/omapdrm/omap_fbdev.c | 4 ++-- drivers/gpu/drm/radeon/radeon_fb.c | 4 ++-- drivers/gpu/drm/tegra/fb.c | 7 +++---- include/drm/drm_fb_helper.h | 3 ++- 11 files changed, 43 insertions(+), 43 deletions(-) diff --git a/drivers/gpu/drm/armada/armada_fbdev.c b/drivers/gpu/drm/armada/armada_fbdev.c index 584cee123bd8..07e410c62b7a 100644 --- a/drivers/gpu/drm/armada/armada_fbdev.c +++ b/drivers/gpu/drm/armada/armada_fbdev.c @@ -129,7 +129,7 @@ int armada_fbdev_init(struct drm_device *dev) priv->fbdev = fbh; - drm_fb_helper_prepare(dev, fbh, &armada_fb_helper_funcs); + drm_fb_helper_prepare(dev, fbh, 32, &armada_fb_helper_funcs); ret = drm_fb_helper_init(dev, fbh); if (ret) { @@ -137,7 +137,7 @@ int armada_fbdev_init(struct drm_device *dev) goto err_fb_helper; } - ret = drm_fb_helper_initial_config(fbh, 32); + ret = drm_fb_helper_initial_config(fbh); if (ret) { DRM_ERROR("failed to set initial config\n"); goto err_fb_setup; diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 258103d317ac..28c428e9c530 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -416,14 +416,30 @@ static void drm_fb_helper_damage_work(struct work_struct *work) * drm_fb_helper_prepare - setup a drm_fb_helper structure * @dev: DRM device * @helper: driver-allocated fbdev helper structure to set up + * @preferred_bpp: Preferred bits per pixel for the device. * @funcs: pointer to structure of functions associate with this helper * * Sets up the bare minimum to make the framebuffer helper usable. This is * useful to implement race-free initialization of the polling helpers. */ void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, + unsigned int preferred_bpp, const struct drm_fb_helper_funcs *funcs) { + /* + * Pick a preferred bpp of 32 if no value has been given. This + * will select XRGB8888 for the framebuffer formats. All drivers + * have to support XRGB8888 for backwards compatibility with legacy + * userspace, so it's the safe choice here. + * + * TODO: Replace struct drm_mode_config.preferred_depth and this + * bpp value with a preferred format that is given as struct + * drm_format_info. Then derive all other values from the + * format. + */ + if (!preferred_bpp) + preferred_bpp = 32; + INIT_LIST_HEAD(&helper->kernel_fb_list); spin_lock_init(&helper->damage_lock); INIT_WORK(&helper->resume_work, drm_fb_helper_resume_worker); @@ -432,6 +448,7 @@ void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, mutex_init(&helper->lock); helper->funcs = funcs; helper->dev = dev; + helper->preferred_bpp = preferred_bpp; } EXPORT_SYMBOL(drm_fb_helper_prepare); @@ -2183,7 +2200,6 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper) /** * drm_fb_helper_initial_config - setup a sane initial connector configuration * @fb_helper: fb_helper device struct - * @bpp_sel: bpp value to use for the framebuffer configuration * * Scans the CRTCs and connectors and tries to put together an initial setup. * At the moment, this is a cloned configuration across all heads with @@ -2221,15 +2237,13 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper) * RETURNS: * Zero if everything went ok, nonzero otherwise. */ -int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) +int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper) { int ret; if (!drm_fbdev_emulation) return 0; - fb_helper->preferred_bpp = bpp_sel; - mutex_lock(&fb_helper->lock); ret = __drm_fb_helper_initial_config_and_unlock(fb_helper); diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 63f66325a8a5..6ae014040df3 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -392,7 +392,7 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) if (!drm_drv_uses_atomic_modeset(dev)) drm_helper_disable_unused_functions(dev); - ret = drm_fb_helper_initial_config(fb_helper, fb_helper->preferred_bpp); + ret = drm_fb_helper_initial_config(fb_helper); if (ret) goto err_cleanup; @@ -454,7 +454,7 @@ void drm_fbdev_generic_setup(struct drm_device *dev, fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL); if (!fb_helper) return; - drm_fb_helper_prepare(dev, fb_helper, &drm_fb_helper_generic_funcs); + drm_fb_helper_prepare(dev, fb_helper, preferred_bpp, &drm_fb_helper_generic_funcs); ret = drm_client_init(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs); if (ret) { @@ -462,21 +462,6 @@ void drm_fbdev_generic_setup(struct drm_device *dev, goto err_drm_client_init; } - /* - * Pick a preferred bpp of 32 if no value has been given. This - * will select XRGB8888 for the framebuffer formats. All drivers - * have to support XRGB8888 for backwards compatibility with legacy - * userspace, so it's the safe choice here. - * - * TODO: Replace struct drm_mode_config.preferred_depth and this - * bpp value with a preferred format that is given as struct - * drm_format_info. Then derive all other values from the - * format. - */ - if (!preferred_bpp) - preferred_bpp = 32; - fb_helper->preferred_bpp = preferred_bpp; - ret = drm_fbdev_client_hotplug(&fb_helper->client); if (ret) drm_dbg_kms(dev, "client hotplug ret=%d\n", ret); diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 55c92372fca0..b89e33af8da8 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -163,7 +163,7 @@ int exynos_drm_fbdev_init(struct drm_device *dev) private->fb_helper = helper = &fbdev->drm_fb_helper; - drm_fb_helper_prepare(dev, helper, &exynos_drm_fb_helper_funcs); + drm_fb_helper_prepare(dev, helper, PREFERRED_BPP, &exynos_drm_fb_helper_funcs); ret = drm_fb_helper_init(dev, helper); if (ret < 0) { @@ -172,7 +172,7 @@ int exynos_drm_fbdev_init(struct drm_device *dev) goto err_init; } - ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP); + ret = drm_fb_helper_initial_config(helper); if (ret < 0) { DRM_DEV_ERROR(dev->dev, "failed to set up hw configuration.\n"); diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index 52ae3ade9a61..1f04c07ee180 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -409,7 +409,7 @@ int psb_fbdev_init(struct drm_device *dev) dev_priv->fb_helper = fb_helper; - drm_fb_helper_prepare(dev, fb_helper, &psb_fb_helper_funcs); + drm_fb_helper_prepare(dev, fb_helper, 32, &psb_fb_helper_funcs); ret = drm_fb_helper_init(dev, fb_helper); if (ret) @@ -418,7 +418,7 @@ int psb_fbdev_init(struct drm_device *dev) /* disable all the possible outputs/crtcs before entering KMS mode */ drm_helper_disable_unused_functions(dev); - ret = drm_fb_helper_initial_config(fb_helper, 32); + ret = drm_fb_helper_initial_config(fb_helper); if (ret) goto fini; diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 19f3b5d92a55..ed197db5861d 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -520,10 +520,12 @@ int intel_fbdev_init(struct drm_device *dev) return -ENOMEM; mutex_init(&ifbdev->hpd_lock); - drm_fb_helper_prepare(dev, &ifbdev->helper, &intel_fb_helper_funcs); + drm_fb_helper_prepare(dev, &ifbdev->helper, 32, &intel_fb_helper_funcs); - if (!intel_fbdev_init_bios(dev, ifbdev)) - ifbdev->preferred_bpp = 32; + if (intel_fbdev_init_bios(dev, ifbdev)) + ifbdev->helper.preferred_bpp = ifbdev->preferred_bpp; + else + ifbdev->preferred_bpp = ifbdev->helper.preferred_bpp; ret = drm_fb_helper_init(dev, &ifbdev->helper); if (ret) { @@ -542,8 +544,7 @@ static void intel_fbdev_initial_config(void *data, async_cookie_t cookie) struct intel_fbdev *ifbdev = data; /* Due to peculiar init order wrt to hpd handling this is separate. */ - if (drm_fb_helper_initial_config(&ifbdev->helper, - ifbdev->preferred_bpp)) + if (drm_fb_helper_initial_config(&ifbdev->helper)) intel_fbdev_unregister(to_i915(ifbdev->helper.dev)); } diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index 31e1e30cb52a..915b213f3a5c 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -146,7 +146,7 @@ struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev) helper = &fbdev->base; - drm_fb_helper_prepare(dev, helper, &msm_fb_helper_funcs); + drm_fb_helper_prepare(dev, helper, 32, &msm_fb_helper_funcs); ret = drm_fb_helper_init(dev, helper); if (ret) { @@ -159,7 +159,7 @@ struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev) if (ret) goto fini; - ret = drm_fb_helper_initial_config(helper, 32); + ret = drm_fb_helper_initial_config(helper); if (ret) goto fini; diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c index 98d8758048fc..fc5f52d567c6 100644 --- a/drivers/gpu/drm/omapdrm/omap_fbdev.c +++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c @@ -239,13 +239,13 @@ void omap_fbdev_init(struct drm_device *dev) helper = &fbdev->base; - drm_fb_helper_prepare(dev, helper, &omap_fb_helper_funcs); + drm_fb_helper_prepare(dev, helper, 32, &omap_fb_helper_funcs); ret = drm_fb_helper_init(dev, helper); if (ret) goto fail; - ret = drm_fb_helper_initial_config(helper, 32); + ret = drm_fb_helper_initial_config(helper); if (ret) goto fini; diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index fe4087bfdb3c..6e5eed0e157c 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -348,7 +348,7 @@ int radeon_fbdev_init(struct radeon_device *rdev) rfbdev->rdev = rdev; rdev->mode_info.rfbdev = rfbdev; - drm_fb_helper_prepare(rdev->ddev, &rfbdev->helper, + drm_fb_helper_prepare(rdev->ddev, &rfbdev->helper, bpp_sel, &radeon_fb_helper_funcs); ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper); @@ -358,7 +358,7 @@ int radeon_fbdev_init(struct radeon_device *rdev) /* disable all the possible outputs/crtcs before entering KMS mode */ drm_helper_disable_unused_functions(rdev->ddev); - ret = drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel); + ret = drm_fb_helper_initial_config(&rfbdev->helper); if (ret) goto fini; diff --git a/drivers/gpu/drm/tegra/fb.c b/drivers/gpu/drm/tegra/fb.c index a900300ae5bd..153c39c32c71 100644 --- a/drivers/gpu/drm/tegra/fb.c +++ b/drivers/gpu/drm/tegra/fb.c @@ -308,7 +308,7 @@ static struct tegra_fbdev *tegra_fbdev_create(struct drm_device *drm) return ERR_PTR(-ENOMEM); } - drm_fb_helper_prepare(drm, &fbdev->base, &tegra_fb_helper_funcs); + drm_fb_helper_prepare(drm, &fbdev->base, 32, &tegra_fb_helper_funcs); return fbdev; } @@ -319,7 +319,6 @@ static void tegra_fbdev_free(struct tegra_fbdev *fbdev) } static int tegra_fbdev_init(struct tegra_fbdev *fbdev, - unsigned int preferred_bpp, unsigned int num_crtc, unsigned int max_connectors) { @@ -333,7 +332,7 @@ static int tegra_fbdev_init(struct tegra_fbdev *fbdev, return err; } - err = drm_fb_helper_initial_config(&fbdev->base, preferred_bpp); + err = drm_fb_helper_initial_config(&fbdev->base); if (err < 0) { dev_err(drm->dev, "failed to set initial configuration: %d\n", err); @@ -396,7 +395,7 @@ int tegra_drm_fb_init(struct drm_device *drm) struct tegra_drm *tegra = drm->dev_private; int err; - err = tegra_fbdev_init(tegra->fbdev, 32, drm->mode_config.num_crtc, + err = tegra_fbdev_init(tegra->fbdev, drm->mode_config.num_crtc, drm->mode_config.num_connector); if (err < 0) return err; diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index 39710c570a04..9604e67c2838 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -229,6 +229,7 @@ drm_fb_helper_from_client(struct drm_client_dev *client) #ifdef CONFIG_DRM_FBDEV_EMULATION void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, + unsigned int preferred_bpp, const struct drm_fb_helper_funcs *funcs); void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper); int drm_fb_helper_init(struct drm_device *dev, struct drm_fb_helper *helper); @@ -284,7 +285,7 @@ int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg); int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); -int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); +int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper); int drm_fb_helper_debug_enter(struct fb_info *info); int drm_fb_helper_debug_leave(struct fb_info *info); From patchwork Tue Jan 24 13:40:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114125 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 639B5C64EC5 for ; 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Tue, 24 Jan 2023 13:40:13 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 07/10] drm/fbdev-generic: Minimize hotplug error handling Date: Tue, 24 Jan 2023 14:40:07 +0100 Message-Id: <20230124134010.30263-8-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Call drm_fb_helper_init() in the generic-fbdev hotplug helper to revert the effects of drm_fb_helper_init(). No full cleanup is required. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_fbdev_generic.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 6ae014040df3..dd8be5e0f271 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -387,25 +387,21 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) ret = drm_fb_helper_init(dev, fb_helper); if (ret) - goto err; + goto err_drm_err; if (!drm_drv_uses_atomic_modeset(dev)) drm_helper_disable_unused_functions(dev); ret = drm_fb_helper_initial_config(fb_helper); if (ret) - goto err_cleanup; + goto err_drm_fb_helper_fini; return 0; -err_cleanup: - drm_fbdev_cleanup(fb_helper); -err: - fb_helper->dev = NULL; - fb_helper->info = NULL; - +err_drm_fb_helper_fini: + drm_fb_helper_fini(fb_helper); +err_drm_err: drm_err(dev, "fbdev: Failed to setup generic emulation (ret=%d)\n", ret); - return ret; } From patchwork Tue Jan 24 13:40:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114123 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 C874EC6379F for ; Tue, 24 Jan 2023 13:40:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234247AbjAXNkT (ORCPT ); Tue, 24 Jan 2023 08:40:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234234AbjAXNkQ (ORCPT ); Tue, 24 Jan 2023 08:40:16 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7595D302A5; Tue, 24 Jan 2023 05:40:15 -0800 (PST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 126D321886; Tue, 24 Jan 2023 13:40:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674567614; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=p6uZusSdr1MbshHSKIYuzEGDjhxkKoAoioeknjvp2I4=; b=P+07bXYxaYKX3FXIYhLxupX+VPNbGFjuieWc5c/N1GBFpxFoBmUPoYq2aL9KuSWERdOU4n a7K2hFKUcF0RpE/3RtEQmvcGxbFagxg71zntcGV90QHnb133HzUcBRAYyjQszR4Xml3Zgc qNp4kJmkb8zmkxohV2UKaTNk9DvNBP0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674567614; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=p6uZusSdr1MbshHSKIYuzEGDjhxkKoAoioeknjvp2I4=; b=T2a8dX+3RTqRqTYYMXqWLhNKHEEs+O73XEC5eDFJi4uX+ZtERihdZYOwumpYTBn7fwXWnH Uqk+8B9k6s4JDKCw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id C273F13487; Tue, 24 Jan 2023 13:40:13 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id mOuELr3fz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:13 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 08/10] drm/fbdev-generic: Minimize client unregistering Date: Tue, 24 Jan 2023 14:40:08 +0100 Message-Id: <20230124134010.30263-9-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org For uninitialized framebuffers, only release the DRM client and free the fbdev memory. Do not attempt to clean up the framebuffer. DRM fbdev clients have a two-step initialization: first create the DRM client; then create the framebuffer device on the first successful hotplug event. In cases where the client never creates the framebuffer, only the client state needs to be released. We can detect which case it is, full or client-only cleanup, be looking at the presence of fb_helper's info field. v2: * remove test for (fbi != NULL) in drm_fbdev_cleanup() (Sam) Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_fbdev_generic.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index dd8be5e0f271..9fe37903e3eb 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -51,12 +51,10 @@ static void drm_fbdev_cleanup(struct drm_fb_helper *fb_helper) if (!fb_helper->dev) return; - if (fbi) { - if (fbi->fbdefio) - fb_deferred_io_cleanup(fbi); - if (drm_fbdev_use_shadow_fb(fb_helper)) - shadow = fbi->screen_buffer; - } + if (fbi->fbdefio) + fb_deferred_io_cleanup(fbi); + if (drm_fbdev_use_shadow_fb(fb_helper)) + shadow = fbi->screen_buffer; drm_fb_helper_fini(fb_helper); @@ -362,11 +360,13 @@ static void drm_fbdev_client_unregister(struct drm_client_dev *client) { struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - if (fb_helper->info) - /* drm_fbdev_fb_destroy() takes care of cleanup */ + if (fb_helper->info) { drm_fb_helper_unregister_info(fb_helper); - else - drm_fbdev_release(fb_helper); + } else { + drm_fb_helper_unprepare(fb_helper); + drm_client_release(&fb_helper->client); + kfree(fb_helper); + } } static int drm_fbdev_client_restore(struct drm_client_dev *client) From patchwork Tue Jan 24 13:40:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114124 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 77DC5C54EED for ; Tue, 24 Jan 2023 13:40:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234168AbjAXNkU (ORCPT ); Tue, 24 Jan 2023 08:40:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234235AbjAXNkQ (ORCPT ); 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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674567614; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9gqTaZqFS9HwS2jeW+cjkUFXSUCIBmBtuf7BCu1wnbY=; b=ZjE8eRmjxS/tHvlbj5qstTSBdHOD1TL3wMGknGORmwkfEGtAqrnHb9k1W4rE/gPi2itC6F FBQ9Z3j89xX3GiBg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 15F71139FF; Tue, 24 Jan 2023 13:40:14 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id +BJpBL7fz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:14 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 09/10] drm/fbdev-generic: Inline clean-up helpers into drm_fbdev_fb_destroy() Date: Tue, 24 Jan 2023 14:40:09 +0100 Message-Id: <20230124134010.30263-10-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The fbdev framebuffer cleanup in drm_fbdev_fb_destroy() calls drm_fbdev_release() and drm_fbdev_cleanup(). Inline both into the caller. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_fbdev_generic.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 9fe37903e3eb..13b31a95d434 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -43,8 +43,9 @@ static int drm_fbdev_fb_release(struct fb_info *info, int user) return 0; } -static void drm_fbdev_cleanup(struct drm_fb_helper *fb_helper) +static void drm_fbdev_fb_destroy(struct fb_info *info) { + struct drm_fb_helper *fb_helper = info->par; struct fb_info *fbi = fb_helper->info; void *shadow = NULL; @@ -64,24 +65,10 @@ static void drm_fbdev_cleanup(struct drm_fb_helper *fb_helper) drm_client_buffer_vunmap(fb_helper->buffer); drm_client_framebuffer_delete(fb_helper->buffer); -} - -static void drm_fbdev_release(struct drm_fb_helper *fb_helper) -{ - drm_fbdev_cleanup(fb_helper); drm_client_release(&fb_helper->client); kfree(fb_helper); } -/* - * fb_ops.fb_destroy is called by the last put_fb_info() call at the end of - * unregister_framebuffer() or fb_release(). - */ -static void drm_fbdev_fb_destroy(struct fb_info *info) -{ - drm_fbdev_release(info->par); -} - static int drm_fbdev_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) { struct drm_fb_helper *fb_helper = info->par; From patchwork Tue Jan 24 13:40:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13114126 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 B9D05C64ED8 for ; Tue, 24 Jan 2023 13:40:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234237AbjAXNkW (ORCPT ); Tue, 24 Jan 2023 08:40:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234240AbjAXNkR (ORCPT ); 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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674567614; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=umu1oYNzuXuDKuOEF0oRXjztfv6/2EpKs/EPAOugwHA=; b=dGScla0Sl1YZ81J810UQ+K9PbplCn5jC/erVivNYFUTB0LUbcdRRZqiqFTISxyAFX36xek +0HUDq5HWLe5DtBA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 5F08613487; Tue, 24 Jan 2023 13:40:14 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 2B9WFr7fz2PWZgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 13:40:14 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 10/10] drm/fbdev-generic: Rename struct fb_info 'fbi' to 'info' Date: Tue, 24 Jan 2023 14:40:10 +0100 Message-Id: <20230124134010.30263-11-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230124134010.30263-1-tzimmermann@suse.de> References: <20230124134010.30263-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The generic fbdev emulation names variables of type struct fb_info both 'fbi' and 'info'. The latter seems to be more common in fbdev code, so name fbi accordingly. Also replace the duplicate variable in drm_fbdev_fb_destroy(). Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_fbdev_generic.c | 47 ++++++++++++++--------------- 1 file changed, 23 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 13b31a95d434..b6565c1e3531 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -46,16 +46,15 @@ static int drm_fbdev_fb_release(struct fb_info *info, int user) static void drm_fbdev_fb_destroy(struct fb_info *info) { struct drm_fb_helper *fb_helper = info->par; - struct fb_info *fbi = fb_helper->info; void *shadow = NULL; if (!fb_helper->dev) return; - if (fbi->fbdefio) - fb_deferred_io_cleanup(fbi); + if (info->fbdefio) + fb_deferred_io_cleanup(info); if (drm_fbdev_use_shadow_fb(fb_helper)) - shadow = fbi->screen_buffer; + shadow = info->screen_buffer; drm_fb_helper_fini(fb_helper); @@ -171,7 +170,7 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper, struct drm_device *dev = fb_helper->dev; struct drm_client_buffer *buffer; struct drm_framebuffer *fb; - struct fb_info *fbi; + struct fb_info *info; u32 format; struct iosys_map map; int ret; @@ -190,35 +189,35 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper, fb_helper->fb = buffer->fb; fb = buffer->fb; - fbi = drm_fb_helper_alloc_info(fb_helper); - if (IS_ERR(fbi)) - return PTR_ERR(fbi); + info = drm_fb_helper_alloc_info(fb_helper); + if (IS_ERR(info)) + return PTR_ERR(info); - fbi->fbops = &drm_fbdev_fb_ops; - fbi->screen_size = sizes->surface_height * fb->pitches[0]; - fbi->fix.smem_len = fbi->screen_size; - fbi->flags = FBINFO_DEFAULT; + info->fbops = &drm_fbdev_fb_ops; + info->screen_size = sizes->surface_height * fb->pitches[0]; + info->fix.smem_len = info->screen_size; + info->flags = FBINFO_DEFAULT; - drm_fb_helper_fill_info(fbi, fb_helper, sizes); + drm_fb_helper_fill_info(info, fb_helper, sizes); if (drm_fbdev_use_shadow_fb(fb_helper)) { - fbi->screen_buffer = vzalloc(fbi->screen_size); - if (!fbi->screen_buffer) + info->screen_buffer = vzalloc(info->screen_size); + if (!info->screen_buffer) return -ENOMEM; - fbi->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST; + info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST; - fbi->fbdefio = &drm_fbdev_defio; - fb_deferred_io_init(fbi); + info->fbdefio = &drm_fbdev_defio; + fb_deferred_io_init(info); } else { /* buffer is mapped for HW framebuffer */ ret = drm_client_buffer_vmap(fb_helper->buffer, &map); if (ret) return ret; if (map.is_iomem) { - fbi->screen_base = map.vaddr_iomem; + info->screen_base = map.vaddr_iomem; } else { - fbi->screen_buffer = map.vaddr; - fbi->flags |= FBINFO_VIRTFB; + info->screen_buffer = map.vaddr; + info->flags |= FBINFO_VIRTFB; } /* @@ -227,10 +226,10 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper, * case. */ #if IS_ENABLED(CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM) - if (fb_helper->hint_leak_smem_start && fbi->fix.smem_start == 0 && + if (fb_helper->hint_leak_smem_start && info->fix.smem_start == 0 && !drm_WARN_ON_ONCE(dev, map.is_iomem)) - fbi->fix.smem_start = - page_to_phys(virt_to_page(fbi->screen_buffer)); + info->fix.smem_start = + page_to_phys(virt_to_page(info->screen_buffer)); #endif }