From patchwork Fri Aug 16 12:23:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13766273 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 6BE27C52D7D for ; Fri, 16 Aug 2024 12:58:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5CF4B10E7B0; Fri, 16 Aug 2024 12:54:51 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 141B410E716; Fri, 16 Aug 2024 12:54:40 +0000 (UTC) Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id AE28F200BE; Fri, 16 Aug 2024 12:54:38 +0000 (UTC) Authentication-Results: smtp-out2.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 58A9C13A2F; Fri, 16 Aug 2024 12:54:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id QD5oFA5Mv2bdbgAAD6G6ig (envelope-from ); Fri, 16 Aug 2024 12:54:38 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, airlied@gmail.com, jfalempe@redhat.com, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, nouveau@lists.freedesktop.org, Thomas Zimmermann , Thierry Reding , Mikko Perttunen , Jonathan Hunter Subject: [PATCH 79/86] drm/tegra: Run DRM default client setup Date: Fri, 16 Aug 2024 14:23:45 +0200 Message-ID: <20240816125408.310253-80-tzimmermann@suse.de> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240816125408.310253-1-tzimmermann@suse.de> References: <20240816125408.310253-1-tzimmermann@suse.de> MIME-Version: 1.0 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Rspamd-Queue-Id: AE28F200BE X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[]; TAGGED_RCPT(0.00)[] 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Rework fbdev probing to support fbdev_probe in struct drm_driver and remove the old fb_probe callback. Provide an initializer macro for struct drm_driver that sets the callback according to the kernel configuration. Call drm_client_setup() to run the kernel's default client setup for DRM. Set fbdev_probe in struct drm_driver, so that the client setup can start the common fbdev client. The tegra driver specifies a preferred color mode of 32. As this is the default if no format has been given, leave it out entirely. Signed-off-by: Thomas Zimmermann Cc: Thierry Reding Cc: Mikko Perttunen Cc: Jonathan Hunter --- drivers/gpu/drm/tegra/drm.c | 5 +- drivers/gpu/drm/tegra/drm.h | 12 +++-- drivers/gpu/drm/tegra/fbdev.c | 98 +++-------------------------------- 3 files changed, 19 insertions(+), 96 deletions(-) diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index d9f0728c3afd..6186524cf1a4 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -891,6 +892,8 @@ static const struct drm_driver tegra_drm_driver = { .dumb_create = tegra_bo_dumb_create, + TEGRA_FBDEV_DRIVER_OPS, + .ioctls = tegra_drm_ioctls, .num_ioctls = ARRAY_SIZE(tegra_drm_ioctls), .fops = &tegra_drm_fops, @@ -1268,7 +1271,7 @@ static int host1x_drm_probe(struct host1x_device *dev) if (err < 0) goto hub; - tegra_fbdev_setup(drm); + drm_client_setup(drm, NULL); return 0; diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h index 682011166a8f..0bc8d6625aef 100644 --- a/drivers/gpu/drm/tegra/drm.h +++ b/drivers/gpu/drm/tegra/drm.h @@ -25,6 +25,9 @@ /* XXX move to include/uapi/drm/drm_fourcc.h? */ #define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22) +struct drm_fb_helper; +struct drm_fb_helper_surface_size; + struct edid; struct reset_control; @@ -190,10 +193,13 @@ struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, const struct drm_mode_fb_cmd2 *cmd); #ifdef CONFIG_DRM_FBDEV_EMULATION -void tegra_fbdev_setup(struct drm_device *drm); +int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes); +#define TEGRA_FBDEV_DRIVER_OPS \ + .fbdev_probe = tegra_fbdev_driver_fbdev_probe #else -static inline void tegra_fbdev_setup(struct drm_device *drm) -{ } +#define TEGRA_FBDEV_DRIVER_OPS \ + .fbdev_probe = NULL #endif extern struct platform_driver tegra_display_hub_driver; diff --git a/drivers/gpu/drm/tegra/fbdev.c b/drivers/gpu/drm/tegra/fbdev.c index db6eaac3d30e..cd9d798f8870 100644 --- a/drivers/gpu/drm/tegra/fbdev.c +++ b/drivers/gpu/drm/tegra/fbdev.c @@ -66,8 +66,11 @@ static const struct fb_ops tegra_fb_ops = { .fb_destroy = tegra_fbdev_fb_destroy, }; -static int tegra_fbdev_probe(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) +static const struct drm_fb_helper_funcs tegra_fbdev_helper_funcs = { +}; + +int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) { struct tegra_drm *tegra = helper->dev->dev_private; struct drm_device *drm = helper->dev; @@ -112,6 +115,7 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper, return PTR_ERR(fb); } + helper->funcs = &tegra_fbdev_helper_funcs; helper->fb = fb; helper->info = info; @@ -144,93 +148,3 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper, drm_framebuffer_remove(fb); return err; } - -static const struct drm_fb_helper_funcs tegra_fb_helper_funcs = { - .fb_probe = tegra_fbdev_probe, -}; - -/* - * struct drm_client - */ - -static void tegra_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_fb_helper_unregister_info(fb_helper); - } else { - drm_client_release(&fb_helper->client); - drm_fb_helper_unprepare(fb_helper); - kfree(fb_helper); - } -} - -static int tegra_fbdev_client_restore(struct drm_client_dev *client) -{ - drm_fb_helper_lastclose(client->dev); - - return 0; -} - -static int tegra_fbdev_client_hotplug(struct drm_client_dev *client) -{ - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - struct drm_device *dev = client->dev; - int ret; - - if (dev->fb_helper) - return drm_fb_helper_hotplug_event(dev->fb_helper); - - ret = drm_fb_helper_init(dev, fb_helper); - if (ret) - 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_drm_fb_helper_fini; - - return 0; - -err_drm_fb_helper_fini: - drm_fb_helper_fini(fb_helper); -err_drm_err: - drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret); - return ret; -} - -static const struct drm_client_funcs tegra_fbdev_client_funcs = { - .owner = THIS_MODULE, - .unregister = tegra_fbdev_client_unregister, - .restore = tegra_fbdev_client_restore, - .hotplug = tegra_fbdev_client_hotplug, -}; - -void tegra_fbdev_setup(struct drm_device *dev) -{ - struct drm_fb_helper *helper; - int ret; - - drm_WARN(dev, !dev->registered, "Device has not been registered.\n"); - drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n"); - - helper = kzalloc(sizeof(*helper), GFP_KERNEL); - if (!helper) - return; - drm_fb_helper_prepare(dev, helper, 32, &tegra_fb_helper_funcs); - - ret = drm_client_init(dev, &helper->client, "fbdev", &tegra_fbdev_client_funcs); - if (ret) - goto err_drm_client_init; - - drm_client_register(&helper->client); - - return; - -err_drm_client_init: - drm_fb_helper_unprepare(helper); - kfree(helper); -}