[v2,05/11] drm/client: Move client event handlers to drm_client_event.c

Message ID	20241002131306.288618-6-tzimmermann@suse.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <dri-devel-bounces@lists.freedesktop.org> From: Thomas Zimmermann <tzimmermann@suse.de> To: simona@ffwll.ch, airlied@gmail.com, javierm@redhat.com, jfalempe@redhat.com Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, Thomas Zimmermann <tzimmermann@suse.de>, Jani Nikula <jani.nikula@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Tvrtko Ursulin <tursulin@ursulin.net>, Karol Herbst <kherbst@redhat.com>, Lyude Paul <lyude@redhat.com>, Danilo Krummrich <dakr@redhat.com> Subject: [PATCH v2 05/11] drm/client: Move client event handlers to drm_client_event.c Date: Wed, 2 Oct 2024 15:04:31 +0200 Message-ID: <20241002131306.288618-6-tzimmermann@suse.de> In-Reply-To: <20241002131306.288618-1-tzimmermann@suse.de> References: <20241002131306.288618-1-tzimmermann@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: list Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
Series	drm: Introduce DRM client library \| expand [v2,00/11] drm: Introduce DRM client library [v2,01/11] drm/i915: Select DRM_CLIENT_SELECTION [v2,02/11] drm/xe: Select DRM_CLIENT_SELECTION [v2,03/11] drm/fbdev: Select fbdev I/O helpers from modules that require them [v2,04/11] drm/fbdev: Store fbdev module parameters in separate file [v2,05/11] drm/client: Move client event handlers to drm_client_event.c [v2,06/11] drm/client: Move suspend/resume into DRM client callbacks [v2,07/11] drm/amdgpu: Suspend and resume internal clients with client helpers [v2,08/11] drm/nouveau: Suspend and resume clients with client helpers [v2,09/11] drm/radeon: Suspend and resume clients with client helpers [v2,10/11] drm/client: Make client support optional [v2,11/11] drm/client: Add client-lib module

diff --git a/Documentation/gpu/drm-client.rst b/Documentation/gpu/drm-client.rst index 58b5a1d1219d..cbcfe30de777 100644 --- a/Documentation/gpu/drm-client.rst +++ b/Documentation/gpu/drm-client.rst @@ -13,3 +13,6 @@ Kernel clients .. kernel-doc:: drivers/gpu/drm/drm_client_modeset.c :export: + +.. kernel-doc:: drivers/gpu/drm/drm_client_event.c + :export: diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 3894f43f6d47..6b7d168ca790 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -42,6 +42,7 @@ drm-y := \ drm_bridge.o \ drm_cache.o \ drm_client.o \ + drm_client_event.o \ drm_client_modeset.o \ drm_color_mgmt.o \ drm_connector.o \ diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index bfedcbf516db..549b28a5918c 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -10,7 +10,6 @@ #include <linux/slab.h> #include <drm/drm_client.h> -#include <drm/drm_debugfs.h> #include <drm/drm_device.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> @@ -172,99 +171,6 @@ void drm_client_release(struct drm_client_dev *client) } EXPORT_SYMBOL(drm_client_release); -/** - * drm_client_dev_unregister - Unregister clients - * @dev: DRM device - * - * This function releases all clients by calling each client's - * &drm_client_funcs.unregister callback. The callback function - * is responsibe for releaseing all resources including the client - * itself. - * - * The helper drm_dev_unregister() calls this function. Drivers - * that use it don't need to call this function themselves. - */ -void drm_client_dev_unregister(struct drm_device *dev) -{ - struct drm_client_dev *client, *tmp; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return; - - mutex_lock(&dev->clientlist_mutex); - list_for_each_entry_safe(client, tmp, &dev->clientlist, list) { - list_del(&client->list); - if (client->funcs && client->funcs->unregister) { - client->funcs->unregister(client); - } else { - drm_client_release(client); - kfree(client); - } - } - mutex_unlock(&dev->clientlist_mutex); -} -EXPORT_SYMBOL(drm_client_dev_unregister); - -/** - * drm_client_dev_hotplug - Send hotplug event to clients - * @dev: DRM device - * - * This function calls the &drm_client_funcs.hotplug callback on the attached clients. - * - * drm_kms_helper_hotplug_event() calls this function, so drivers that use it - * don't need to call this function themselves. - */ -void drm_client_dev_hotplug(struct drm_device *dev) -{ - struct drm_client_dev *client; - int ret; - - 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) - 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); -} -EXPORT_SYMBOL(drm_client_dev_hotplug); - -void drm_client_dev_restore(struct drm_device *dev) -{ - struct drm_client_dev *client; - int ret; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return; - - mutex_lock(&dev->clientlist_mutex); - list_for_each_entry(client, &dev->clientlist, list) { - if (!client->funcs || !client->funcs->restore) - continue; - - ret = client->funcs->restore(client); - drm_dbg_kms(dev, "%s: ret=%d\n", client->name, ret); - if (!ret) /* The first one to return zero gets the privilege to restore */ - break; - } - mutex_unlock(&dev->clientlist_mutex); -} - static void drm_client_buffer_delete(struct drm_client_buffer *buffer) { if (buffer->gem) { @@ -584,30 +490,3 @@ int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_re 0, 0, NULL, 0); } EXPORT_SYMBOL(drm_client_framebuffer_flush); - -#ifdef CONFIG_DEBUG_FS -static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data) -{ - struct drm_debugfs_entry *entry = m->private; - struct drm_device *dev = entry->dev; - struct drm_printer p = drm_seq_file_printer(m); - struct drm_client_dev *client; - - mutex_lock(&dev->clientlist_mutex); - list_for_each_entry(client, &dev->clientlist, list) - drm_printf(&p, "%s\n", client->name); - mutex_unlock(&dev->clientlist_mutex); - - return 0; -} - -static const struct drm_debugfs_info drm_client_debugfs_list[] = { - { "internal_clients", drm_client_debugfs_internal_clients, 0 }, -}; - -void drm_client_debugfs_init(struct drm_device *dev) -{ - drm_debugfs_add_files(dev, drm_client_debugfs_list, - ARRAY_SIZE(drm_client_debugfs_list)); -} -#endif diff --git a/drivers/gpu/drm/drm_client_event.c b/drivers/gpu/drm/drm_client_event.c new file mode 100644 index 000000000000..d13d44320c5c --- /dev/null +++ b/drivers/gpu/drm/drm_client_event.c @@ -0,0 +1,135 @@ +// SPDX-License-Identifier: GPL-2.0 or MIT +/* + * Copyright 2018 Noralf Trønnes + */ + +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/seq_file.h> + +#include <drm/drm_client.h> +#include <drm/drm_client_event.h> +#include <drm/drm_debugfs.h> +#include <drm/drm_device.h> +#include <drm/drm_drv.h> +#include <drm/drm_print.h> + +/** + * drm_client_dev_unregister - Unregister clients + * @dev: DRM device + * + * This function releases all clients by calling each client's + * &drm_client_funcs.unregister callback. The callback function + * is responsibe for releaseing all resources including the client + * itself. + * + * The helper drm_dev_unregister() calls this function. Drivers + * that use it don't need to call this function themselves. + */ +void drm_client_dev_unregister(struct drm_device *dev) +{ + struct drm_client_dev *client, *tmp; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return; + + mutex_lock(&dev->clientlist_mutex); + list_for_each_entry_safe(client, tmp, &dev->clientlist, list) { + list_del(&client->list); + if (client->funcs && client->funcs->unregister) { + client->funcs->unregister(client); + } else { + drm_client_release(client); + kfree(client); + } + } + mutex_unlock(&dev->clientlist_mutex); +} +EXPORT_SYMBOL(drm_client_dev_unregister); + +/** + * drm_client_dev_hotplug - Send hotplug event to clients + * @dev: DRM device + * + * This function calls the &drm_client_funcs.hotplug callback on the attached clients. + * + * drm_kms_helper_hotplug_event() calls this function, so drivers that use it + * don't need to call this function themselves. + */ +void drm_client_dev_hotplug(struct drm_device *dev) +{ + struct drm_client_dev *client; + int ret; + + 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) + 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); +} +EXPORT_SYMBOL(drm_client_dev_hotplug); + +void drm_client_dev_restore(struct drm_device *dev) +{ + struct drm_client_dev *client; + int ret; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return; + + mutex_lock(&dev->clientlist_mutex); + list_for_each_entry(client, &dev->clientlist, list) { + if (!client->funcs || !client->funcs->restore) + continue; + + ret = client->funcs->restore(client); + drm_dbg_kms(dev, "%s: ret=%d\n", client->name, ret); + if (!ret) /* The first one to return zero gets the privilege to restore */ + break; + } + mutex_unlock(&dev->clientlist_mutex); +} + +#ifdef CONFIG_DEBUG_FS +static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data) +{ + struct drm_debugfs_entry *entry = m->private; + struct drm_device *dev = entry->dev; + struct drm_printer p = drm_seq_file_printer(m); + struct drm_client_dev *client; + + mutex_lock(&dev->clientlist_mutex); + list_for_each_entry(client, &dev->clientlist, list) + drm_printf(&p, "%s\n", client->name); + mutex_unlock(&dev->clientlist_mutex); + + return 0; +} + +static const struct drm_debugfs_info drm_client_debugfs_list[] = { + { "internal_clients", drm_client_debugfs_internal_clients, 0 }, +}; + +void drm_client_debugfs_init(struct drm_device *dev) +{ + drm_debugfs_add_files(dev, drm_client_debugfs_list, + ARRAY_SIZE(drm_client_debugfs_list)); +} +#endif diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index ac30b0ec9d93..c2c172eb25df 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -38,7 +38,7 @@ #include <drm/drm_accel.h> #include <drm/drm_cache.h> -#include <drm/drm_client.h> +#include <drm/drm_client_event.h> #include <drm/drm_color_mgmt.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index ad1dc638c83b..7415abb7faca 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -40,7 +40,7 @@ #include <linux/slab.h> #include <linux/vga_switcheroo.h> -#include <drm/drm_client.h> +#include <drm/drm_client_event.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> #include <drm/drm_gem.h> diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 92f21764246f..96b266b37ba4 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -33,7 +33,7 @@ #include <linux/moduleparam.h> #include <drm/drm_bridge.h> -#include <drm/drm_client.h> +#include <drm/drm_client_event.h> #include <drm/drm_crtc.h> #include <drm/drm_edid.h> #include <drm/drm_fourcc.h> diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c index c106fb2dd20b..673f9b965494 100644 --- a/drivers/gpu/drm/i915/display/intel_display_driver.c +++ b/drivers/gpu/drm/i915/display/intel_display_driver.c @@ -11,7 +11,7 @@ #include <acpi/video.h> #include <drm/display/drm_dp_mst_helper.h> #include <drm/drm_atomic_helper.h> -#include <drm/drm_client.h> +#include <drm/drm_client_event.h> #include <drm/drm_mode_config.h> #include <drm/drm_privacy_screen_consumer.h> #include <drm/drm_probe_helper.h> diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c index ab4e11dc0b8a..a6c375a24154 100644 --- a/drivers/gpu/drm/nouveau/nouveau_vga.c +++ b/drivers/gpu/drm/nouveau/nouveau_vga.c @@ -2,7 +2,7 @@ #include <linux/vgaarb.h> #include <linux/vga_switcheroo.h> -#include <drm/drm_fb_helper.h> +#include <drm/drm_client_event.h> #include "nouveau_drv.h" #include "nouveau_acpi.h" diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h index bc0e66f9c425..dfd5afcc9463 100644 --- a/include/drm/drm_client.h +++ b/include/drm/drm_client.h @@ -121,10 +121,6 @@ int drm_client_init(struct drm_device *dev, struct drm_client_dev *client, void drm_client_release(struct drm_client_dev *client); void drm_client_register(struct drm_client_dev *client); -void drm_client_dev_unregister(struct drm_device *dev); -void drm_client_dev_hotplug(struct drm_device *dev); -void drm_client_dev_restore(struct drm_device *dev); - /** * struct drm_client_buffer - DRM client buffer */ diff --git a/include/drm/drm_client_event.h b/include/drm/drm_client_event.h new file mode 100644 index 000000000000..2c8915241120 --- /dev/null +++ b/include/drm/drm_client_event.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 or MIT */ + +#ifndef _DRM_CLIENT_EVENT_H_ +#define _DRM_CLIENT_EVENT_H_ + +struct drm_device; + +void drm_client_dev_unregister(struct drm_device *dev); +void drm_client_dev_hotplug(struct drm_device *dev); +void drm_client_dev_restore(struct drm_device *dev); + +#endif

[v2,05/11] drm/client: Move client event handlers to drm_client_event.c

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Patch