[PATCH v6 0/3] drm/imagination: Propagate all KCCB command submission code errors

[Alexandru Dadu <alexandru.dadu@imgtec.com>]

- Set up an error path for pvr_queue_run_job().
- Propagate errors from KCCB submission functions.
- Early release pm references in case of errors.

Signed-off-by: Alexandru Dadu <alexandru.dadu@imgtec.com>
---
Changes in v6:
- Refactor the patch into 3 commits.
- Rebased on a more recent drm-misc-next.
- Link to v5: https://patch.msgid.link/20260908-b4-upstream-propagate-all-errors-from-kccb-cmd-submission-code-v5-1-5e262721454b@imgtec.com

Changes in v5:
- Added pvr_job_release_pm_ref() to the kccb kick command return value
check.
- Update v4 description typo.
- Link to v4: https://patch.msgid.link/20260907-b4-upstream-propagate-all-errors-from-kccb-cmd-submission-code-v4-1-b684f58a06ce@imgtec.com

Changes in v4:
- Added a check over the return value of the kccb kick command.
- Link to v3: https://patch.msgid.link/20260907-b4-upstream-propagate-all-errors-from-kccb-cmd-submission-code-v3-1-4578a0fadf69@imgtec.com

Changes in v3:
- Dropped the job->kccb_fence check since pvr_queue_prepare_job() makes
sure that the check would always be true.
- Dropped the power references from the patch.
- Link to v2: https://patch.msgid.link/20260814-b4-upstream-propagate-all-errors-from-kccb-cmd-submission-code-v2-1-35355fad50ae@imgtec.com

Changes in v2:
- Provide an error path in pvr_queue_run_job(). The path will use
pvr_kccb_release_slot() to avoid resource leaks.
- Link to v1: https://patch.msgid.link/20260811-b4-upstream-propagate-all-errors-from-kccb-cmd-submission-code-v1-1-ffd55254d6d2@imgtec.com

To: Alessio Belle <alessio.belle@imgtec.com>
To: Luigi Santivetti <luigi.santivetti@imgtec.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.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>
Cc: imagination@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org

---
Alessio Belle (1):
      drm/imagination: Propagate all errors from KCCB command submission code

Alexandru Dadu (2):
      drm/imagination: Release KCCB slot on error path in pvr_queue_run_job()
      drm/imagination: Release pm references in case of error

 drivers/gpu/drm/imagination/pvr_ccb.c   | 33 ++++++++++++++++-----
 drivers/gpu/drm/imagination/pvr_ccb.h   |  6 ++--
 drivers/gpu/drm/imagination/pvr_cccb.c  | 12 +++++---
 drivers/gpu/drm/imagination/pvr_cccb.h  | 20 ++++++-------
 drivers/gpu/drm/imagination/pvr_queue.c | 52 +++++++++++++++++++++++----------
 5 files changed, 82 insertions(+), 41 deletions(-)
---
base-commit: a8fe4e162ba8212b7e51fdb024b37800f36b496c
change-id: 20260810-b4-upstream-propagate-all-errors-from-kccb-cmd-submission-code-0dae4f05fcb5

Best regards,
--  
Alexandru Dadu <alexandru.dadu@imgtec.com>