[PATCH 0/9] Add TLB invalidation abstraction

[Stuart Summers <stuart.summers@intel.com>]

This is a new collection of patches from Matt that has
been floating around internally and on the mailing list.
The goal here is to abstract the actual mechanism of
the invalidation from the higher level invalidation triggers
(like page table updates).

Most of these were brought in unmodified by Matt, but
I've done some minor rebase work here and there and
added my signoff where those rebases seemed a little
more extensive.

Tested on BMG locally.

v9: Use tlb_inval_reset in TLB inval tear down sequence.
v8: Fix documentation failures in CI and rebase
v7: Add a little more documentation around the TLB worker
    cancel on teardown and move that cancellation to a
    drm teardown helper.
v6: Fix for UAF in timer.c due to outstanding TLB inval
    on teardown.
v5: Make sure seqno_lock covers the prep and send in
    the later patches (Matt)
v4: Replace CT lock with seqno_lock
v3: Minor spelling fixes and added R-B's per updates on
    on the mailing list
v2: Start the series with a new patch to drop the
    explicit CT lock (Matt)
    Pull in the remaining patches from [1]

[1] https://patchwork.freedesktop.org/series/151670/#rev1

Matthew Brost (7):
  drm/xe: s/tlb_invalidation/tlb_inval
  drm/xe: Add xe_tlb_inval structure
  drm/xe: Add xe_gt_tlb_invalidation_done_handler
  drm/xe: Decouple TLB invalidations from GT
  drm/xe: Prep TLB invalidation fence before sending
  drm/xe: Add helpers to send TLB invalidations
  drm/xe: Split TLB invalidation code in frontend and backend

Stuart Summers (2):
  drm/xe: Move explicit CT lock in TLB invalidation sequence
  drm/xe: Cancel pending TLB inval workers on teardown

 drivers/gpu/drm/xe/Makefile                   |   5 +-
 drivers/gpu/drm/xe/xe_device_types.h          |   4 +-
 drivers/gpu/drm/xe/xe_exec_queue.c            |   2 +-
 drivers/gpu/drm/xe/xe_ggtt.c                  |   4 +-
 drivers/gpu/drm/xe/xe_gt.c                    |   8 +-
 drivers/gpu/drm/xe/xe_gt_pagefault.c          |   1 -
 drivers/gpu/drm/xe/xe_gt_tlb_inval_job.h      |  34 -
 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c   | 604 ------------------
 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h   |  40 --
 .../gpu/drm/xe/xe_gt_tlb_invalidation_types.h |  32 -
 drivers/gpu/drm/xe/xe_gt_types.h              |  33 +-
 drivers/gpu/drm/xe/xe_guc_ct.c                |   8 +-
 drivers/gpu/drm/xe/xe_guc_tlb_inval.c         | 242 +++++++
 drivers/gpu/drm/xe/xe_guc_tlb_inval.h         |  19 +
 drivers/gpu/drm/xe/xe_lmtt.c                  |  12 +-
 drivers/gpu/drm/xe/xe_migrate.h               |  10 +-
 drivers/gpu/drm/xe/xe_pci.c                   |   6 +-
 drivers/gpu/drm/xe/xe_pci_types.h             |   2 +-
 drivers/gpu/drm/xe/xe_pt.c                    |  63 +-
 drivers/gpu/drm/xe/xe_svm.c                   |   3 +-
 drivers/gpu/drm/xe/xe_tlb_inval.c             | 434 +++++++++++++
 drivers/gpu/drm/xe/xe_tlb_inval.h             |  46 ++
 ..._gt_tlb_inval_job.c => xe_tlb_inval_job.c} | 154 +++--
 drivers/gpu/drm/xe/xe_tlb_inval_job.h         |  33 +
 drivers/gpu/drm/xe/xe_tlb_inval_types.h       | 130 ++++
 drivers/gpu/drm/xe/xe_trace.h                 |  24 +-
 drivers/gpu/drm/xe/xe_vm.c                    |  66 +-
 drivers/gpu/drm/xe/xe_vm.h                    |   4 +-
 28 files changed, 1098 insertions(+), 925 deletions(-)
 delete mode 100644 drivers/gpu/drm/xe/xe_gt_tlb_inval_job.h
 delete mode 100644 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
 delete mode 100644 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h
 delete mode 100644 drivers/gpu/drm/xe/xe_gt_tlb_invalidation_types.h
 create mode 100644 drivers/gpu/drm/xe/xe_guc_tlb_inval.c
 create mode 100644 drivers/gpu/drm/xe/xe_guc_tlb_inval.h
 create mode 100644 drivers/gpu/drm/xe/xe_tlb_inval.c
 create mode 100644 drivers/gpu/drm/xe/xe_tlb_inval.h
 rename drivers/gpu/drm/xe/{xe_gt_tlb_inval_job.c => xe_tlb_inval_job.c} (50%)
 create mode 100644 drivers/gpu/drm/xe/xe_tlb_inval_job.h
 create mode 100644 drivers/gpu/drm/xe/xe_tlb_inval_types.h

-- 
2.34.1