drm/v3d: Convert submit helpers to operate on struct v3d_submit

Generalize the submission helpers so they act on a whole struct v3d_submit
(the entire job chain) rather than on individual jobs and a drm_exec. This
lets a submission of several chained jobs be locked, fenced, and finalized
as a single unit, and is the groundwork for collapsing the indirect CSD
path into one chain.

The following helpers were generalized:

  - v3d_lookup_bos()
  - v3d_lock_bo_reservations() (renamed to v3d_submit_lock_reservations()):
  - v3d_attach_fences_and_unlock_reservation()
  - v3d_setup_csd_jobs_and_bos()

Now, the locking helper now iterates over all jobs and locks the union of
their BOs under one DRM exec, using DRM_EXEC_IGNORE_DUPLICATES to tolerate
shared BO references. The fence-attach helper similarly walks every job
and attaches the chain's last fence to all touched BOs.

Also, v3d_submit_jobs() becomes the single submit-and-finalize entry
point and callers no longer need to open-code fence attachment,
reservation unlocking, etc.

Update CL/TFU/CSD/CPU ioctls to use the new helper signatures. The CPU
ioctl still uses two struct v3d_submit instances (one for the CPU job,
one for the indirect CSD jobs) and keeps its manual two-pass fence-attach
flow. Converting the indirect CSD path into the unified chain is done in
the next commit.

No functional change.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://patch.msgid.link/20260604-v3d-sched-misc-fixes-v4-8-c068f5bf5ccf@igalia.com
Signed-off-by: Maíra Canal <mcanal@igalia.com>

0 files changed, 0 insertions, 0 deletions