From patchwork Wed Jan 25 20:04:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116051 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id AC7B8C636BD for ; Wed, 25 Jan 2023 20:04:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 33BAA10E86E; Wed, 25 Jan 2023 20:04:22 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by gabe.freedesktop.org (Postfix) with ESMTPS id C225810E85C; Wed, 25 Jan 2023 20:04:18 +0000 (UTC) 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 6731C1FEEF; Wed, 25 Jan 2023 20:04:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674677057; 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=QJtIsR15ya/zOdpbRDRKT1AjPR2mO3ErJsacdSl2nec=; b=dilHervAW672AjuMzkbk6TnatEI7s9Say4dNdAHD41lvaDzbz9NFY54l+WR+bwDssNDPpy abTCMqyHPCU3IP59xIU5sifAbKgSL95+ziGLW3AoHDAmQSHNEU070dTxyQJEy/Krt7HsjZ A1o/Znp8vrJwgD8ZX6QaiFr36EzQnac= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674677057; 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=QJtIsR15ya/zOdpbRDRKT1AjPR2mO3ErJsacdSl2nec=; b=En1Dwej8pLIbFHqoX8fkuEeisHVKgFin/ZdCjW3f3pOPVe4oW51hBfdSOWxJcaQRmjNeNV P7TqfZugl4TOgeAA== 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 2736813A06; Wed, 25 Jan 2023 20:04:17 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id sPypCEGL0WMDeAAAMHmgww (envelope-from ); Wed, 25 Jan 2023 20:04:17 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:06 +0100 Message-Id: <20230125200415.14123-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 01/10] drm/client: Test for connectors before sending hotplug event 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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 Wed Jan 25 20:04:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116052 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 546A3C54E94 for ; Wed, 25 Jan 2023 20:04:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8797A10E873; Wed, 25 Jan 2023 20:04:22 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1F56410E85C; Wed, 25 Jan 2023 20:04:19 +0000 (UTC) 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 A7DD11FE94; Wed, 25 Jan 2023 20:04:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674677057; 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=uCpLaX1oHpxByqh6QHj2bOLOrRtwHkCMazI2xMmVWyI=; b=NR//PvvwSYoCghCIGG8RQHxMnY6YdwArQ+QOofHLys/9ET35jsG4h0rwo6nWgF3gvMykxY PUySK/27ygXFcRwZb+u9l/67WXDozo8mI4+wclgN4aAfqT+UERwoMMFeHb7M4mKFZg8lEO 5nhR7QgRfzmQMa99x4RSuvlwjFT+sO4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674677057; 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=uCpLaX1oHpxByqh6QHj2bOLOrRtwHkCMazI2xMmVWyI=; b=2hjxKN8bZ1NtccW76VLCPW7N2XXDDTGRdm7QHm8qovgS6fmeCa3Jfo7XzP2unSIjdCIfzp nSe8V3mwWUPEoiAw== 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 6B54C1339E; Wed, 25 Jan 2023 20:04:17 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id WJd5GUGL0WMDeAAAMHmgww (envelope-from ); Wed, 25 Jan 2023 20:04:17 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:07 +0100 Message-Id: <20230125200415.14123-3-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 02/10] drm/client: Add hotplug_failed flag 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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 Wed Jan 25 20:04:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116055 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 7B272C61D97 for ; Wed, 25 Jan 2023 20:04:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 02FF210E87A; Wed, 25 Jan 2023 20:04:23 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4007410E862; Wed, 25 Jan 2023 20:04:19 +0000 (UTC) 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 E1E6821B80; Wed, 25 Jan 2023 20:04:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674677057; 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=WhdE2M5zn4/MKgwBvX3WXtrBqldU9porz9r1vGCJMT4=; b=BQEpa3QWTs7km2Iwl1SWuPd4jwDYfkegPuRiTf2Zgvz7wjGhaOjvD09/lElSBxzVTfXl1D bmSHpQiaP6ai0wNUPSlgo0IjXpNw/vmEKqvF8Nt1KtnLyWDsFagTVPlEA/6BuM1f2mRg+B EgciDfwWdYVAtrpoTnDLBmX4K623Psg= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674677057; 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=WhdE2M5zn4/MKgwBvX3WXtrBqldU9porz9r1vGCJMT4=; b=JS+3ACRHPBij17coQtUCBHTadO69mnvhgJMiW1m0ntPW4V0C1CD4hFTsy2cuRV0CYdjc7B +FPYU3qCcHT7mwDg== 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 A9FFF13A06; Wed, 25 Jan 2023 20:04:17 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 2JK8KEGL0WMDeAAAMHmgww (envelope-from ); Wed, 25 Jan 2023 20:04:17 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:08 +0100 Message-Id: <20230125200415.14123-4-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 03/10] drm/fb-helper: Introduce drm_fb_helper_unprepare() 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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 Wed Jan 25 20:04:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116056 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 7E0AAC54E94 for ; 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Wed, 25 Jan 2023 20:04:17 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:09 +0100 Message-Id: <20230125200415.14123-5-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 04/10] drm/fbdev-generic: Initialize fb-helper structure in generic setup 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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 Wed Jan 25 20:04:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116059 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A346DC27C76 for ; Wed, 25 Jan 2023 20:04:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8EAA010E870; 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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 Wed Jan 25 20:04:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116054 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 7C098C61DA2 for ; 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Wed, 25 Jan 2023 20:04:18 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:11 +0100 Message-Id: <20230125200415.14123-7-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 06/10] drm/fb-helper: Initialize fb-helper's preferred BPP in prepare function 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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. v3: * build with CONFIG_DRM_FBDEV_EMULATION unset (kernel test bot) 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 | 11 ++++++----- 11 files changed, 47 insertions(+), 47 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..93bc8f29f5a4 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); @@ -292,8 +293,9 @@ void drm_fb_helper_lastclose(struct drm_device *dev); void drm_fb_helper_output_poll_changed(struct drm_device *dev); #else static inline void drm_fb_helper_prepare(struct drm_device *dev, - struct drm_fb_helper *helper, - const struct drm_fb_helper_funcs *funcs) + struct drm_fb_helper *helper, + unsigned int preferred_bpp, + const struct drm_fb_helper_funcs *funcs) { } @@ -455,8 +457,7 @@ static inline int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) return 0; } -static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, - int bpp_sel) +static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper) { return 0; } From patchwork Wed Jan 25 20:04:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116058 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id CA549C54E94 for ; Wed, 25 Jan 2023 20:04:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 20B7A10E884; Wed, 25 Jan 2023 20:04:25 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 69C7910E863; 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No full cleanup is required. v3: * fix error in commit message (Javier) 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 Wed Jan 25 20:04:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116060 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D6D22C61D97 for ; Wed, 25 Jan 2023 20:05:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A878D10E892; Wed, 25 Jan 2023 20:04:30 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by gabe.freedesktop.org (Postfix) with ESMTPS id B522210E864; Wed, 25 Jan 2023 20:04:20 +0000 (UTC) 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 3CD3521C89; 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Wed, 25 Jan 2023 20:04:18 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id qHc7O0KL0WMDeAAAMHmgww (envelope-from ); Wed, 25 Jan 2023 20:04:18 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:13 +0100 Message-Id: <20230125200415.14123-9-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 08/10] drm/fbdev-generic: Minimize client unregistering 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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, by looking at the presence of fb_helper's info field. v3: * fix typo in commit message (Javier) * release client before unpreparing fbdev 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..a9c519001019 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_client_release(&fb_helper->client); + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); + } } static int drm_fbdev_client_restore(struct drm_client_dev *client) From patchwork Wed Jan 25 20:04:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116057 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 2755BC61DA7 for ; 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Wed, 25 Jan 2023 20:04:19 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:14 +0100 Message-Id: <20230125200415.14123-10-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 09/10] drm/fbdev-generic: Inline clean-up helpers into drm_fbdev_fb_destroy() 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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 a9c519001019..68ce652e3a14 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 Wed Jan 25 20:04:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13116061 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 7F38EC54EED for ; Wed, 25 Jan 2023 20:05:05 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AF3A010E88E; 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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674677059; 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=y/gEPYKc6u74/1ZhA3KTyyGoxjq8IY3iL1CCJO+JrM4=; b=7YStTZ9T/UfO30CN7zcek5I/OMQLBvqLdS5t3eKRDjSuaB/KkRB8BtNpxTsyF2IAlTqdir 4jfZSVKwM3Y08IAw== 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 7D4811339E; Wed, 25 Jan 2023 20:04:19 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id wKTSHUOL0WMDeAAAMHmgww (envelope-from ); Wed, 25 Jan 2023 20:04:19 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Date: Wed, 25 Jan 2023 21:04:15 +0100 Message-Id: <20230125200415.14123-11-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125200415.14123-1-tzimmermann@suse.de> References: <20230125200415.14123-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 10/10] drm/fbdev-generic: Rename struct fb_info 'fbi' to 'info' 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: , Cc: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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 68ce652e3a14..43f94aa9e015 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 }