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linux/include/drm/drm_client_event.h

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drm/client: Move client event handlers to drm_client_event.c A number of DRM-client functions serve as entry points from device operations to client code. Moving them info a separate file will later allow for a more fine-grained kernel configuration. For most of the users it is sufficient to include <drm/drm_client_event.h> instead of the full driver-side interface in <drm/drm_client.h> v2: - rename new files to drm_client_event.{c,h} Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tursulin@ursulin.net> Cc: Karol Herbst <kherbst@redhat.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Danilo Krummrich <dakr@redhat.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-7-tzimmermann@suse.de
2024-10-14 10:55:20 +02:00
/* SPDX-License-Identifier: GPL-2.0 or MIT */
#ifndef _DRM_CLIENT_EVENT_H_
#define _DRM_CLIENT_EVENT_H_
struct drm_device;
drm/client: Make client support optional Only build client code if DRM_CLIENT has been selected. Automatially do so if one of the default clients has been enabled. If client support has been disabled, the helpers for client-related events are empty and the regular client functions are not present. Amdgpu has an internal DRM client, so it has to select DRM_CLIENT by itself unconditionally. v3: - provide empty drm_client_debugfs_init() if DRM_CLIENT=n (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Xinhui Pan <Xinhui.Pan@amd.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-12-tzimmermann@suse.de
2024-10-14 10:55:25 +02:00
#if defined(CONFIG_DRM_CLIENT)
drm/client: Move client event handlers to drm_client_event.c A number of DRM-client functions serve as entry points from device operations to client code. Moving them info a separate file will later allow for a more fine-grained kernel configuration. For most of the users it is sufficient to include <drm/drm_client_event.h> instead of the full driver-side interface in <drm/drm_client.h> v2: - rename new files to drm_client_event.{c,h} Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tursulin@ursulin.net> Cc: Karol Herbst <kherbst@redhat.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Danilo Krummrich <dakr@redhat.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-7-tzimmermann@suse.de
2024-10-14 10:55:20 +02:00
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);
drm/client: Move suspend/resume into DRM client callbacks Suspend and resume is still tied to fbdev emulation. Modeset helpers and several drivers call drm_fb_helper_set_suspend_unlocked() to inform the fbdev client about suspend/resume events. To make it work with arbitrary clients, add per-client callback functions for suspend and resume. Implement them for fbdev emulation with the existing drm_fb_helper_set_suspend_unlocked(). Then update DRM's modeset helpers to call the new interface. Clients that are not fbdev can now implement suspend/resume to their requirements. The callback parameter holds_console_lock is a workaround for i915, radeon and xe, which possibly call the interface while having the console lock acquired. Even though the commit doesn't modify these drivers, it already adds the flag to avoid churn later on. New code should not hold the console lock. v4: - clarify holds_console_lock in commit description (Jonathan) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-8-tzimmermann@suse.de
2024-10-14 10:55:21 +02:00
void drm_client_dev_suspend(struct drm_device *dev, bool holds_console_lock);
void drm_client_dev_resume(struct drm_device *dev, bool holds_console_lock);
drm/client: Make client support optional Only build client code if DRM_CLIENT has been selected. Automatially do so if one of the default clients has been enabled. If client support has been disabled, the helpers for client-related events are empty and the regular client functions are not present. Amdgpu has an internal DRM client, so it has to select DRM_CLIENT by itself unconditionally. v3: - provide empty drm_client_debugfs_init() if DRM_CLIENT=n (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Xinhui Pan <Xinhui.Pan@amd.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-12-tzimmermann@suse.de
2024-10-14 10:55:25 +02:00
#else
static inline void drm_client_dev_unregister(struct drm_device *dev)
{ }
static inline void drm_client_dev_hotplug(struct drm_device *dev)
{ }
static inline void drm_client_dev_restore(struct drm_device *dev)
{ }
static inline void drm_client_dev_suspend(struct drm_device *dev, bool holds_console_lock)
{ }
static inline void drm_client_dev_resume(struct drm_device *dev, bool holds_console_lock)
{ }
#endif
drm/client: Move client event handlers to drm_client_event.c A number of DRM-client functions serve as entry points from device operations to client code. Moving them info a separate file will later allow for a more fine-grained kernel configuration. For most of the users it is sufficient to include <drm/drm_client_event.h> instead of the full driver-side interface in <drm/drm_client.h> v2: - rename new files to drm_client_event.{c,h} Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tursulin@ursulin.net> Cc: Karol Herbst <kherbst@redhat.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Danilo Krummrich <dakr@redhat.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-7-tzimmermann@suse.de
2024-10-14 10:55:20 +02:00
#endif
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