[PATCH v12 0/5] Introduce DRM device wedged event

[Raag Jadav <raag.jadav@intel.com>]

This series introduces device wedged event in DRM subsystem and uses it
in xe, i915 and amdgpu drivers. Detailed description in commit message.

This was earlier attempted as xe specific uevent in v1 and v2 on [1].
Similar work by André Almeida on [2].
Wedged event support for amdgpu by André Almeida on [3].
Consumer implementation by Xaver Hugl on [4].

 [1] https://patchwork.freedesktop.org/series/136909/
 [2] https://lore.kernel.org/dri-devel/20221125175203.52481-1-andrealmeid@igalia.com/
 [3] https://lore.kernel.org/dri-devel/20241216162104.58241-1-andrealmeid@igalia.com/
 [4] https://invent.kde.org/plasma/kwin/-/merge_requests/7027

 v2: Change authorship to Himal (Aravind)
     Add uevent for all device wedged cases (Aravind)

 v3: Generic implementation in DRM subsystem (Lucas)

 v4: s/drm_dev_wedged/drm_dev_wedged_event
     Use drm_info() (Jani)
     Kernel doc adjustment (Aravind)
     Change authorship to Raag (Aravind)

 v5: Send recovery method with uevent (Lina)
     Expose supported recovery methods via sysfs (Lucas)

 v6: Access wedge_recovery_opts[] using helper function (Jani)
     Use snprintf() (Jani)

 v7: Convert recovery helpers into regular functions (Andy, Jani)
     Aesthetic adjustments (Andy)
     Handle invalid recovery method
     Add documentation to drm-uapi.rst (Sima)

 v8: Drop sysfs and allow sending multiple methods with uevent (Lucas, Michal)
     Improve documentation (Christian, Rodrigo)
     static_assert() globally (Andy)

 v9: Document prerequisites section (Christian)
     Provide 'none' method for device reset (Christian)
     Provide recovery opts using switch cases

v10: Clarify mmap cleanup and consumer prerequisites (Christian, Aravind)

v11: Log device reset (André)
     Reference wedged event in device reset chapter (André)
     Wedged event support for amdgpu (André)

v12: Refine consumer expectations and terminologies (Xaver, Pekka)

André Almeida (1):
  drm/amdgpu: Use device wedged event

Raag Jadav (4):
  drm: Introduce device wedged event
  drm/doc: Document device wedged event
  drm/xe: Use device wedged event
  drm/i915: Use device wedged event

 Documentation/gpu/drm-uapi.rst             | 116 ++++++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |   4 +
 drivers/gpu/drm/drm_drv.c                  |  68 ++++++++++++
 drivers/gpu/drm/i915/gt/intel_reset.c      |   3 +
 drivers/gpu/drm/xe/xe_device.c             |   7 +-
 include/drm/drm_device.h                   |   8 ++
 include/drm/drm_drv.h                      |   1 +
 7 files changed, 203 insertions(+), 4 deletions(-)

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2.34.1