From patchwork Fri Aug 16 12:23:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13766249 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 DB3DDC5320E for ; Fri, 16 Aug 2024 12:58:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AF75B10E7C2; Fri, 16 Aug 2024 12:54:51 +0000 (UTC) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4874410E6FC; Fri, 16 Aug 2024 12:54:39 +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-out1.suse.de (Postfix) with ESMTPS id EC08B22897; Fri, 16 Aug 2024 12:54:37 +0000 (UTC) Authentication-Results: smtp-out1.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 8BA0913A2F; Fri, 16 Aug 2024 12:54:37 +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 EPDUIA1Mv2bdbgAAD6G6ig (envelope-from ); Fri, 16 Aug 2024 12:54:37 +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 , Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten Subject: [PATCH 77/86] drm/msm: Run DRM default client setup Date: Fri, 16 Aug 2024 14:23:43 +0200 Message-ID: <20240816125408.310253-78-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-Server: rspamd2.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Queue-Id: EC08B22897 X-Rspamd-Action: no action X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 msm 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: Rob Clark Cc: Abhinav Kumar Cc: Dmitry Baryshkov Cc: Sean Paul Cc: Marijn Suijten --- drivers/gpu/drm/msm/msm_drv.c | 4 +- drivers/gpu/drm/msm/msm_drv.h | 13 ++- drivers/gpu/drm/msm/msm_fbdev.c | 144 ++++++-------------------------- 3 files changed, 38 insertions(+), 123 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 9c33f4e3f822..22fe0716d18b 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include @@ -292,7 +293,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) if (priv->kms_init) { drm_kms_helper_poll_init(ddev); - msm_fbdev_setup(ddev); + drm_client_setup(ddev, NULL); } return 0; @@ -903,6 +904,7 @@ static const struct drm_driver msm_driver = { #ifdef CONFIG_DEBUG_FS .debugfs_init = msm_debugfs_init, #endif + MSM_FBDEV_DRIVER_OPS, .show_fdinfo = msm_show_fdinfo, .ioctls = msm_ioctls, .num_ioctls = ARRAY_SIZE(msm_ioctls), diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index be016d7b4ef1..63675a3b7097 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -40,6 +40,9 @@ extern struct fault_attr fail_gem_iova; # define should_fail(attr, size) 0 #endif +struct drm_fb_helper; +struct drm_fb_helper_surface_size; + struct msm_kms; struct msm_gpu; struct msm_mmu; @@ -298,11 +301,13 @@ struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev, int w, int h, int p, uint32_t format); #ifdef CONFIG_DRM_FBDEV_EMULATION -void msm_fbdev_setup(struct drm_device *dev); +int msm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes); +#define MSM_FBDEV_DRIVER_OPS \ + .fbdev_probe = msm_fbdev_driver_fbdev_probe #else -static inline void msm_fbdev_setup(struct drm_device *dev) -{ -} +#define MSM_FBDEV_DRIVER_OPS \ + .fbdev_probe = NULL #endif struct hdmi; diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index 030bedac632d..c62249b1ab3d 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -65,8 +65,31 @@ static const struct fb_ops msm_fb_ops = { .fb_destroy = msm_fbdev_fb_destroy, }; -static int msm_fbdev_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) +static int msm_fbdev_fb_dirty(struct drm_fb_helper *helper, + struct drm_clip_rect *clip) +{ + struct drm_device *dev = helper->dev; + int ret; + + /* Call damage handlers only if necessary */ + if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2)) + return 0; + + if (helper->fb->funcs->dirty) { + ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1); + if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret)) + return ret; + } + + return 0; +} + +static const struct drm_fb_helper_funcs msm_fbdev_helper_funcs = { + .fb_dirty = msm_fbdev_fb_dirty, +}; + +int msm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) { struct drm_device *dev = helper->dev; struct msm_drm_private *priv = dev->dev_private; @@ -114,6 +137,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper, DBG("fbi=%p, dev=%p", fbi, dev); + helper->funcs = &msm_fbdev_helper_funcs; helper->fb = fb; fbi->fbops = &msm_fb_ops; @@ -138,119 +162,3 @@ static int msm_fbdev_create(struct drm_fb_helper *helper, drm_framebuffer_remove(fb); return ret; } - -static int msm_fbdev_fb_dirty(struct drm_fb_helper *helper, - struct drm_clip_rect *clip) -{ - struct drm_device *dev = helper->dev; - int ret; - - /* Call damage handlers only if necessary */ - if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2)) - return 0; - - if (helper->fb->funcs->dirty) { - ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1); - if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret)) - return ret; - } - - return 0; -} - -static const struct drm_fb_helper_funcs msm_fb_helper_funcs = { - .fb_probe = msm_fbdev_create, - .fb_dirty = msm_fbdev_fb_dirty, -}; - -/* - * struct drm_client - */ - -static void msm_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 msm_fbdev_client_restore(struct drm_client_dev *client) -{ - drm_fb_helper_lastclose(client->dev); - - return 0; -} - -static int msm_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 msm_fbdev_client_funcs = { - .owner = THIS_MODULE, - .unregister = msm_fbdev_client_unregister, - .restore = msm_fbdev_client_restore, - .hotplug = msm_fbdev_client_hotplug, -}; - -/* initialize fbdev helper */ -void msm_fbdev_setup(struct drm_device *dev) -{ - struct drm_fb_helper *helper; - int ret; - - if (!fbdev) - return; - - 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, &msm_fb_helper_funcs); - - ret = drm_client_init(dev, &helper->client, "fbdev", &msm_fbdev_client_funcs); - if (ret) { - drm_err(dev, "Failed to register client: %d\n", ret); - goto err_drm_fb_helper_unprepare; - } - - drm_client_register(&helper->client); - - return; - -err_drm_fb_helper_unprepare: - drm_fb_helper_unprepare(helper); - kfree(helper); -}