[PATCH v3 0/2] Improve CCS save restore series

[Satyanarayana K V P]

Previously, CCS save/restore operations created separate migration
contexts with new VM memory allocations, resulting in significant
overhead.

This series eliminates redundant context creation reusing the default
migration context by registering new execution queues for CCS save and
restore on the existing migrate VM.

Also fixed corruption issue with save/restore followed by S3/S4 cycle.

V2 -> V3:
- Fixed review comments.
- Added new commit "Scale mmio send/recv timeout for CCS save/restore with
smem size"
- Squashed "Re-register CCS save/restore contexts post S3/S4 resume" into
"Refactor CCS save/restore to use default migration context" commit as per
review comments.

V1 -> V2:
- Fix kernel-doc issues reported by patchworks.
- Added new commit "Re-register CCS save/restore contexts post S3/S4
resume"

Satyanarayana K V P (2):
  drm/xe/vf: Refactor CCS save/restore to use default migration context
  drm/xe/guc: Scale mmio send/recv timeout for CCS save/restore with
    smem size

 drivers/gpu/drm/xe/xe_guc.c                | 33 ++++++++++++++-
 drivers/gpu/drm/xe/xe_migrate.c            | 18 ++++----
 drivers/gpu/drm/xe/xe_migrate.h            |  2 +-
 drivers/gpu/drm/xe/xe_pm.c                 |  3 ++
 drivers/gpu/drm/xe/xe_sriov_vf_ccs.c       | 49 ++++++++++++----------
 drivers/gpu/drm/xe/xe_sriov_vf_ccs_types.h |  6 +--
 6 files changed, 75 insertions(+), 36 deletions(-)

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2.43.0