[PATCH v7 0/5] User readable error codes on atomic_ioctl failure

[Arun R Murthy <arun.r.murthy@intel.com>]

The series focuses on providing a user readable error value on a failure
in drm_atomic_ioctl(). Usually -EINVAL is returned in most of the error
cases and it is difficult for the user to decode the error and get to
know the real cause for the error. If user gets to know the reason for
the error then corrective measurements can be taken up.

TODO: driver specific error codes are to be added and will be done in
the follow-up patches.

The IGT related changes are pushed for review @
https://patchwork.freedesktop.org/series/153330/

    To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
    To: suraj.kandpal@intel.com>
    To: Maxime Ripard <mripard@kernel.org>
    To: Thomas Zimmermann <tzimmermann@suse.de>
    To: David Airlie <airlied@gmail.com>
    To: Simona Vetter <simona@ffwll.ch>
    To: Jani Nikula <jani.nikula@linux.intel.com>
    To: Rodrigo Vivi <rodrigo.vivi@intel.com>
    To: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
    To: Tvrtko Ursulin <tursulin@ursulin.net>
    To: xaver.hugl@kde.org
    To: harry.wentland@amd.com
    To: uma.shankar@intel.com
    To: louis.chauvet@bootlin.com
    Cc: dri-devel@lists.freedesktop.org
    Cc: intel-gfx@lists.freedesktop.org
    Cc: intel-xe@lists.freedesktop.org
    Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
---
Arun R Murthy (5):
      drm: Define user readable error codes for atomic ioctl
      drm/atomic: Add error_code element in atomic_state
      drm/atomic: Allocate atomic_state at the beginning of atomic_ioctl
      drm/atomic: Return user readable error in atomic_ioctl
      drm/i915/display: Error codes for async flip failures

 drivers/gpu/drm/drm_atomic.c                 | 31 ++++++++++
 drivers/gpu/drm/drm_atomic_uapi.c            | 91 +++++++++++++++++++---------
 drivers/gpu/drm/i915/display/intel_display.c | 25 ++++----
 include/drm/drm_atomic.h                     | 10 +++
 include/uapi/drm/drm_mode.h                  | 41 +++++++++++++
 5 files changed, 159 insertions(+), 39 deletions(-)
---
base-commit: 5fc5192372599f11da8dee072fd8beb4414f8eca
change-id: 20250728-atomic-c9713fd357e4

Best regards,
-- 
Arun R Murthy <arun.r.murthy@intel.com>