Thomas Zimmermann 6915190a50 drm/client: Support emergency restore via sysrq for all clients ... Move the sysrq functionality from DRM fbdev helpers to the DRM device and in-kernel clients, so that it becomes available on all clients. DRM fbdev helpers support emergency restoration of the console output via a special key combination. Press SysRq+v to replace the current compositor with the kernel's output on the framebuffer console. This allows users to see the log messages during system emergencies. By moving the functionality from fbdev helpers to the DRM device, any in-kernel client can serve as emergency output. This can be used to bring up drm_log, for example. Each DRM device registers itself to the list of possible sysrq handlers. On receiving SysRq+v, the DRM core goes over all registered devices and restores an in-kernel DRM client for each of them. See Documentation/admin-guide/sysrq.rst on how to invoke SysRq. Switch VTs to bring back the user-space compositor. v2: - declare placeholders as 'static inline' (kernel test robot) - fix grammar in commit description Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patch.msgid.link/20251110154616.539328-3-tzimmermann@suse.de		2025-11-25 08:43:47 +01:00
..
amd	drm/amd/amdgpu: Add helper functions for isp buffers	2025-07-16 16:17:35 -04:00
bridge	drm/bridge: dw-hdmi-qp: Handle platform supported formats and color depth	2025-11-14 23:10:34 +01:00
clients	drm/client: Move public client header to clients/ subdirectory	2024-11-15 09:42:13 +01:00
display	Merge tag 'drm-intel-next-2025-11-04' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-11-07 09:47:56 +10:00
intel	Merge tag 'drm-intel-next-2025-11-04' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-11-07 09:47:56 +10:00
ttm	drm/ttm: Fix @alloc_flags description	2025-11-06 10:35:47 +00:00
Makefile	scripts/kernel-doc.py: don't create *.pyc files	2025-04-24 10:12:46 -06:00
amd_asic_type.h	drm/amdgpu: make amd_asic_type.h self-contained	2024-03-07 17:17:25 +02:00
drm_accel.h	drm: move drm based debugfs funcs to drm_debugfs.c	2025-07-04 15:58:22 +02:00
drm_atomic.h	drm/atomic: WARN about invalid drm_foo_get_state() usage	2025-10-28 21:45:14 +02:00
drm_atomic_helper.h	drm/atomic-helper: Introduce drm_atomic_helper_reset_crtc()	2025-02-13 16:17:46 +01:00
drm_atomic_state_helper.h	drm/atomic-helper: Add an analog TV atomic_check implementation	2022-11-24 12:42:40 +01:00
drm_atomic_uapi.h	drm: handle kernel fences in drm_gem_plane_helper_prepare_fb v2	2022-05-02 09:01:51 +02:00
drm_audio_component.h	drm/audio: make drm_audio_component.h self-contained	2022-11-29 14:14:51 +02:00
drm_auth.h	drm: Remove source code for non-KMS drivers	2023-12-06 10:08:37 +01:00
drm_blend.h	Revert "drm: Introduce pixel_source DRM plane property"	2023-12-04 21:33:10 +02:00
drm_bridge.h	drm/bridge: get the bridge returned by drm_bridge_get_next_bridge()	2025-09-16 15:22:41 +02:00
drm_bridge_connector.h	drm/bridge_connector: drop drm_bridge_connector_en/disable_hpd()	2023-01-05 15:08:10 +01:00
drm_bridge_helper.h	drm/bridge: Add helper to reset bridge pipeline	2025-03-20 14:45:48 +01:00
drm_buddy.h	drm/buddy: replace drm_print.h include with a forward declaration	2025-10-31 10:34:55 +02:00
drm_cache.h	LoongArch: Add writecombine support for drm	2022-06-03 20:09:27 +08:00
drm_client.h	drm/client: Pass force parameter to client restore	2025-11-25 08:43:46 +01:00
drm_client_event.h	drm/client: Pass force parameter to client restore	2025-11-25 08:43:46 +01:00
drm_color_mgmt.h	drm/color-mgmt: Prepare for RGB332 palettes	2025-08-26 09:54:18 +02:00
drm_connector.h	drm-misc-next for 6.17:	2025-06-27 09:58:05 +10:00
drm_crtc.h	Merge tag 'drm-intel-next-2025-11-04' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next	2025-11-07 09:47:56 +10:00
drm_crtc_helper.h	drm/crtc-helper: Remove most include statements from drm_crtc_helper.h	2023-01-18 09:25:32 +01:00
drm_damage_helper.h	drm/damage-helper: add const qualifier in drm_atomic_helper_damage_merged()	2025-03-03 14:45:40 +02:00
drm_debugfs.h	drm: add debugfs support on per client-id basis	2025-07-04 15:59:06 +02:00
drm_debugfs_crc.h	drm/crc: make drm_debugfs_crc.h self-contained and fix kernel-doc	2024-03-07 17:17:25 +02:00
drm_device.h	drm/client: Support emergency restore via sysrq for all clients	2025-11-25 08:43:47 +01:00
drm_drv.h	drm: move drm based debugfs funcs to drm_debugfs.c	2025-07-04 15:58:22 +02:00
drm_dumb_buffers.h	drm/dumb-buffers: Provide helper to set pitch and size	2025-09-29 13:57:43 +02:00
drm_edid.h	drm/edid: add DRM_EDID_IDENT_INIT() to initialize struct drm_edid_ident	2025-11-04 14:49:21 +02:00
drm_eld.h	drm/eld: add helpers to modify the SADs of an ELD	2023-11-09 16:48:27 +02:00
drm_encoder.h	drm/encoder: register per-encoder debugfs dir	2023-12-04 16:07:29 +02:00
drm_exec.h	Merge drm/drm-next into drm-misc-next	2024-01-29 14:20:23 +01:00
drm_fb_dma_helper.h	drm/fb_dma: s/drm_panic_gem_get_scanout_buffer/drm_fb_dma_get_scanout_buffer	2024-04-15 13:50:40 -03:00
drm_fb_helper.h	drm/client: Pass force parameter to client restore	2025-11-25 08:43:46 +01:00
drm_fbdev_dma.h	drm/fbdev-dma: Remove obsolete setup function	2024-09-26 09:31:27 +02:00
drm_fbdev_shmem.h	drm/fbdev-shmem: Remove obsolete setup function	2024-09-26 09:31:28 +02:00
drm_fbdev_ttm.h	drm/fbdev-ttm: Remove obsolete setup function	2024-09-26 09:31:29 +02:00
drm_file.h	drm for 6.17-rc1	2025-07-30 19:26:49 -07:00
drm_fixed.h	drm: fixed: Don't use "proxy" headers	2024-08-13 12:13:45 +03:00
drm_flip_work.h	drm: Fix flip-task docs	2023-11-14 10:23:12 +01:00
drm_format_helper.h	drm/format-helper: Remove drm_fb_blit()	2025-09-23 15:06:06 +02:00
drm_fourcc.h	drm: Pass pixel_format+modifier directly to drm_get_format_info()	2025-07-16 20:01:13 +03:00
drm_framebuffer.h	drm/framebuffer: Acquire internal references on GEM handles	2025-07-09 14:03:28 +02:00
drm_gem.h	gpuvm: remove gem.gpuva.lock_dep_map	2025-08-28 12:40:43 +02:00
drm_gem_atomic_helper.h	drm/atomic-helper: Add format-conversion state to shadow-plane state	2023-11-14 10:01:14 +01:00
drm_gem_dma_helper.h	fs: move FMODE_UNSIGNED_OFFSET to fop_flags	2024-08-30 08:22:36 +02:00
drm_gem_framebuffer_helper.h	drm/gem/afbc: Eliminate redundant drm_get_format_info()	2025-07-16 20:06:22 +03:00
drm_gem_shmem_helper.h	drm/gem/shmem: Extract drm_gem_shmem_release() from drm_gem_shmem_free()	2025-09-12 19:04:37 -04:00
drm_gem_ttm_helper.h	drm/ttm: merge ttm_bo_api.h and ttm_bo_driver.h v2	2022-12-06 12:54:14 +01:00
drm_gem_vram_helper.h	drm/gem-vram: Un-export pin helpers	2025-05-30 09:47:28 +02:00
drm_gpusvm.h	drm/gpusvm, drm/xe: Allow mixed mappings for userptr	2025-10-17 10:25:27 +02:00
drm_gpuvm.h	drm/gpuvm: Fix kernel-doc warning for drm_gpuvm_map_req.map	2025-10-15 18:37:05 +02:00
drm_ioctl.h	drm: Remove locking for legacy ioctls and DRM_UNLOCKED	2023-12-06 10:08:32 +01:00
drm_kunit_helpers.h	Merge tag 'drm-misc-next-2025-04-09' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next	2025-04-14 15:29:49 +10:00
drm_lease.h	drm/lease: make drm_lease.h self-contained	2024-03-07 17:17:25 +02:00
drm_managed.h	drm: Simplify drmm_alloc_ordered_workqueue return	2025-07-03 10:14:56 -07:00
drm_mipi_dbi.h	drm/mipi-dbi: Add support for DRM_FORMAT_RGB888	2024-06-07 16:09:05 +02:00
drm_mipi_dsi.h	drm: Add MIPI read_multi func and two write macros	2025-08-14 15:42:26 -07:00
drm_mm.h	drm/mm: replace drm_print.h include with a forward declaration	2025-10-31 10:34:56 +02:00
drm_mode_config.h	drm: Pass the format info to .fb_create()	2025-07-16 20:03:14 +03:00
drm_mode_object.h	drm/drm_mode_object: fix typo in kerneldoc	2025-02-04 14:11:14 +01:00
drm_modes.h	drm: Move drm_set_preferred_mode() helper from drm_edid to drm_modes	2024-01-05 21:14:46 +01:00
drm_modeset_helper.h	drm: Allow the caller to pass in the format info to drm_helper_mode_fill_fb_struct()	2025-07-16 20:04:45 +03:00
drm_modeset_helper_vtables.h	drm/vblank: Add vblank timer	2025-10-01 08:31:59 +02:00
drm_modeset_lock.h	drm/locking: fix drm_modeset_acquire_ctx kernel-doc	2022-01-20 14:41:25 +02:00
drm_module.h	drm: Provide platform module-init macro	2022-01-19 18:40:18 +01:00
drm_of.h	drm: of: Add drm_of_lvds_get_dual_link_pixel_order_sink()	2024-11-05 13:26:42 +02:00
drm_pagemap.h	drm/pagemap: DMA map folios when possible	2025-08-06 13:34:50 +02:00
drm_panel.h	drm/panel: Allow powering on panel follower after panel is enabled	2025-08-25 09:17:49 -07:00
drm_panic.h	drm/panic: Add a private field to struct drm_scanout_buffer	2025-06-27 11:48:22 +02:00
drm_pciids.h	drm: Remove some obsolete drm pciids(tdfx, mga, i810, savage, r128, sis, via)	2023-01-13 09:44:56 +01:00
drm_plane.h	drm/plane: Add new plane property IN_FORMATS_ASYNC	2025-05-09 15:29:40 +05:30
drm_plane_helper.h	drm/plane-helper: Move drm_plane_helper_atomic_check() into udl	2023-12-06 10:35:49 +01:00
drm_prime.h	drm/shmem-helper: Import dmabuf without mapping its sg_table	2025-06-03 09:21:01 +02:00
drm_print.h	drm/print: Add drm_coredump_printer_is_full	2025-04-24 15:51:41 -07:00
drm_privacy_screen_consumer.h	…
drm_privacy_screen_driver.h	drm/privacy_screen: Add drvdata in drm_privacy_screen	2022-01-10 12:17:37 +01:00
drm_privacy_screen_machine.h	…
drm_probe_helper.h	drm/probe-helper: Do not fail from drmm_kms_helper_poll_init()	2025-03-24 09:31:03 +01:00
drm_property.h	drm/drm_property: make replace_property_blob_from_id a DRM helper	2023-12-13 15:09:53 -05:00
drm_rect.h	drm/rect: Add drm_rect_overlap()	2024-08-23 16:47:56 +02:00
drm_self_refresh_helper.h	…
drm_simple_kms_helper.h	drm/simple-kms: Remove drm_gem_simple_display_pipe_prepare_fb()	2022-12-05 13:35:37 +01:00
drm_suballoc.h	drm/suballoc: fix drm_suballoc.h kernel-doc	2024-03-07 17:17:25 +02:00
drm_syncobj.h	drm/syncobj: add IOCTL to register an eventfd	2023-07-20 12:01:03 +02:00
drm_sysfs.h	drm/sysfs: rename drm_sysfs_connector_status_event()	2023-06-23 15:54:00 +02:00
drm_util.h	drm: Move for_each_if() to util_macros.h for wider use	2025-02-17 14:27:35 +01:00
drm_utils.h	drm: panel-backlight-quirks: Add brightness mask quirk	2025-09-03 10:23:01 -05:00
drm_vblank.h	drm/vblank: Add vblank timer	2025-10-01 08:31:59 +02:00
drm_vblank_helper.h	drm/vblank: Add CRTC helpers for simple use cases	2025-10-01 08:32:00 +02:00
drm_vblank_work.h	drm: Add drm_vblank_work_flush_all().	2024-06-24 18:03:18 +02:00
drm_vma_manager.h	drm/drm_vma_manager: Add drm_vma_node_allow_once()	2023-01-19 14:16:55 +01:00
drm_writeback.h	drm: writeback: Create drmm variants for drm_writeback_connector initialization	2025-01-21 10:32:33 +01:00
gpu_scheduler.h	drm/sched: backend_ops doc fix	2025-09-17 14:58:33 +02:00
gud.h	…
spsc_queue.h	drm/sched: Increment job count before swapping tail spsc queue	2025-07-01 16:14:47 -07:00
task_barrier.h	drm: Spelling s/randevouz/rendez-vous/	2023-07-29 21:11:54 +02:00