Jocelyn Falempe c9ff280879 drm/panic: Add support to scanout buffer as array of pages ...

Some drivers like virtio-gpu, don't map the scanout buffer in the
kernel. Calling vmap() in a panic handler is not safe, and writing an
atomic_vmap() API is more complex than expected [1].
So instead, pass the array of pages of the scanout buffer to the
panic handler, and map only one page at a time to draw the pixels.
This is obviously slow, but acceptable for a panic handler.

[1] https://lore.kernel.org/dri-devel/20250305152555.318159-1-ryasuoka@redhat.com/

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Simona Vetter <simona@ffwll.ch>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250407140138.162383-3-jfalempe@redhat.com

2025-04-10 10:50:58 +02:00

..

bridge

drm/bridge/synopsys: Add MIPI DSI2 host controller bridge

2024-12-10 23:53:04 +01:00

clients

drm/client: Move public client header to clients/ subdirectory

2024-11-15 09:42:13 +01:00

display

Merge drm/drm-next into drm-misc-next

2025-04-07 14:35:48 +02:00

intel

Merge tag 'drm-xe-next-2025-02-24' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

2025-02-27 10:08:29 +10:00

ttm

drm/ttm: Add helpers for shrinking

2025-03-05 17:08:59 +01:00

amd_asic_type.h

drm/amdgpu: make amd_asic_type.h self-contained

2024-03-07 17:17:25 +02:00

drm_accel.h

Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel

2024-09-19 10:18:15 +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_atomic.h

drm/atomic: Introduce helper to lookup connector by encoder

2025-03-20 14:45:46 +01:00

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_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_bridge.h

drm/bridge: add function interface for DisplayPort audio implementation

2025-04-07 15:49:17 +03:00

drm_buddy.h

drm/buddy: Add start address support to trim function

2024-08-07 18:19:00 -04:00

drm_cache.h

LoongArch: Add writecombine support for drm

2022-06-03 20:09:27 +08:00

drm_client_event.h

drm/client: include types.h to make drm_client_event.h self-contained

2025-02-12 10:44:43 +02:00

drm_client.h

drm/client: Send pending hotplug events after resume

2025-03-05 21:48:49 +01:00

drm_color_mgmt.h

drm: using mul_u32_u32() requires linux/math64.h

2023-12-19 15:29:17 +02:00

drm_connector.h

drm/display/hdmi: implement hotplug functions

2025-01-04 08:47:11 +02:00

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_crtc.h

drm: add clone mode check for CRTC

2025-01-08 01:39:58 +02:00

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_crc.h

drm/crc: make drm_debugfs_crc.h self-contained and fix kernel-doc

2024-03-07 17:17:25 +02:00

drm_debugfs.h

drm/gpuvm: rename struct drm_gpuva_manager to struct drm_gpuvm

2023-09-26 01:51:28 +02:00

drm_device.h

drm/prime: Support dedicated DMA device for dma-buf imports

2025-03-12 09:03:46 +01:00

drm_drv.h

drm: Introduce device wedged event

2025-02-13 12:15:43 -05:00

drm_edid.h

drm/edid: Use unsigned int in drm_add_modes_noedid()

2025-04-02 17:19:54 -04:00

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/fb-helper: Remove struct drm_fb_helper.fb_probe

2025-03-05 21:48:50 +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/file: Add fdinfo helper for printing regions with prefix

2025-02-07 15:23:36 +01:00

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: Add conversion from XRGB8888 to BGR888

2025-03-03 16:13:33 +01:00

drm_fourcc.h

drm/fbdev-helper: Move color-mode lookup into 4CC format helper

2024-09-26 08:27:49 +02:00

drm_framebuffer.h

drm: Remove legacy cursor hotspot code

2023-11-24 11:58:02 +01:00

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: Ignore color planes that are unused by framebuffer format

2022-05-19 19:25:02 +02:00

drm_gem_shmem_helper.h

drm/shmem-helper: Use refcount_t for vmap_use_count

2025-03-26 23:00:22 +03:00

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: Remove support for simple display pipelines

2024-09-06 14:41:38 +02:00

drm_gem.h

drm/gem: Document locking rule of vmap and evict callbacks

2025-03-26 23:00:06 +03:00

drm_gpusvm.h

drm/gpusvm: Add support for GPU Shared Virtual Memory

2025-03-06 11:35:28 -08:00

drm_gpuvm.h

drm/gpuvm: Add DRM_GPUVA_OP_DRIVER

2025-03-06 11:35:42 -08:00

drm_ioctl.h

drm: Remove locking for legacy ioctls and DRM_UNLOCKED

2023-12-06 10:08:32 +01:00

drm_kunit_helpers.h

drm/tests: helpers: Create new helper to enable output

2025-03-20 14:45:47 +01:00

drm_lease.h

drm/lease: make drm_lease.h self-contained

2024-03-07 17:17:25 +02:00

drm_managed.h

drm/managed: Add DRM-managed alloc_ordered_workqueue

2025-01-21 10:32:31 +01:00

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/mipi-dsi: Add helper to find input format

2025-03-30 19:47:12 +03:00

drm_mm.h

drm/mm: Remove unused drm_mm_replace_node

2024-06-06 10:24:13 -04:00

drm_mode_config.h

drm/mode_config: Make drm_mode_config.(max|min)_(width|height) unsigned

2025-04-02 17:20:01 -04:00

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_vtables.h

drm/atomic: Let drivers decide which planes to async flip

2025-02-14 00:54:29 +02:00

drm_modeset_helper.h

…

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: Add DRM pagemap

2025-03-06 11:35:25 -08:00

drm_panel.h

drm/panel: Add refcount support

2025-04-01 16:58:04 +02:00

drm_panic.h

drm/panic: Add support to scanout buffer as array of pages

2025-04-10 10:50:58 +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_helper.h

drm/plane-helper: Move drm_plane_helper_atomic_check() into udl

2023-12-06 10:35:49 +01:00

drm_plane.h

drm: Export drm_plane_has_format()

2024-06-24 17:08:53 +03:00

drm_prime.h

drm: new helper: drm_gem_prime_handle_to_dmabuf()

2024-09-10 13:44:30 -04:00

drm_print.h

drm/print: require struct drm_device for drm_err() and friends

2025-03-04 17:03:50 +02:00

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: Add panel backlight quirks

2024-11-21 09:28:11 -06:00

drm_vblank_work.h

drm: Add drm_vblank_work_flush_all().

2024-06-24 18:03:18 +02:00

drm_vblank.h

drm/vblank: add dynamic per-crtc vblank configuration support

2024-07-26 17:40:10 -04:00

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: Update timedout_job()'s documentation

2025-03-06 16:36:32 +01:00

gud.h

…

Makefile

drm: ensure drm headers are self-contained and pass kernel-doc

2025-02-12 10:44:43 +02:00

spsc_queue.h

…

task_barrier.h

drm: Spelling s/randevouz/rendez-vous/

2023-07-29 21:11:54 +02:00