[PATCH v2 0/9] Prereqs for TTM accelerated migration

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A couple of patches from Chris which implement pipelined migration and
clears by atomically writing the PTEs in place before performing the
actual blit.

Some ww utilities mainly for the accompanying selftests added by Thomas,
as well as modified the above patches for ww locking- and lmem support.

The actual hook up to the i915 ttm backend is being worked on and not
included yet, so this is considered to be an early review opportunity.

v2:
- A couple of minor style fixes pointed out by Matthew Auld
- Export and use intel_engine_destroy_pinned_context() to address a
  CI warning / failure.

Chris Wilson (6):
  drm/i915/gt: Add an insert_entry for gen8_ppgtt
  drm/i915/gt: Add a routine to iterate over the pagetables of a GTT
  drm/i915/gt: Export the pinned context constructor and destructor
  drm/i915/gt: Pipelined page migration
  drm/i915/gt: Pipelined clear
  drm/i915/gt: Setup a default migration context on the GT

Thomas Hellström (3):
  drm/i915: Reference objects on the ww object list
  drm/i915: Break out dma_resv ww locking utilities to separate files
  drm/i915: Introduce a ww transaction helper

 drivers/gpu/drm/i915/Makefile                 |   2 +
 drivers/gpu/drm/i915/gem/i915_gem_object.h    |   9 +-
 drivers/gpu/drm/i915/gt/gen8_ppgtt.c          |  68 ++
 drivers/gpu/drm/i915/gt/intel_engine.h        |  12 +
 drivers/gpu/drm/i915/gt/intel_engine_cs.c     |  27 +-
 drivers/gpu/drm/i915/gt/intel_gpu_commands.h  |   2 +
 drivers/gpu/drm/i915/gt/intel_gt.c            |   4 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   3 +
 drivers/gpu/drm/i915/gt/intel_gtt.h           |   7 +
 drivers/gpu/drm/i915/gt/intel_migrate.c       | 685 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_migrate.h       |  65 ++
 drivers/gpu/drm/i915/gt/intel_migrate_types.h |  15 +
 drivers/gpu/drm/i915/gt/intel_renderstate.h   |   1 +
 drivers/gpu/drm/i915/gt/intel_ring.h          |   1 +
 drivers/gpu/drm/i915/gt/selftest_migrate.c    | 671 +++++++++++++++++
 drivers/gpu/drm/i915/i915_gem.c               |  52 --
 drivers/gpu/drm/i915/i915_gem.h               |  12 -
 drivers/gpu/drm/i915/i915_gem_ww.c            |  63 ++
 drivers/gpu/drm/i915/i915_gem_ww.h            |  50 ++
 .../drm/i915/selftests/i915_live_selftests.h  |   1 +
 .../drm/i915/selftests/i915_perf_selftests.h  |   1 +
 21 files changed, 1675 insertions(+), 76 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_migrate.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_migrate.h
 create mode 100644 drivers/gpu/drm/i915/gt/intel_migrate_types.h
 create mode 100644 drivers/gpu/drm/i915/gt/selftest_migrate.c
 create mode 100644 drivers/gpu/drm/i915/i915_gem_ww.c
 create mode 100644 drivers/gpu/drm/i915/i915_gem_ww.h

-- 
2.31.1

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