[v2,00/37] Introduce memory region concept (including device local memory)

Message

Matthew Auld June 27, 2019, 8:55 p.m. UTC

In preparation for upcoming devices with device local memory, introduce the
concept of different memory regions, and a simple buddy allocator to manage
them.

One of the concerns raised from v1 was around not using enough of TTM, which is
a fair criticism, so trying to get better alignment here is something we are
investigating, though currently that is still WIP so in the meantime v2 still
continues to push more of the low-level details forward, but not yet the TTM
interactions.

Abdiel Janulgue (11):
  drm/i915: Add memory region information to device_info
  drm/i915: setup io-mapping for LMEM
  drm/i915/lmem: support kernel mapping
  drm/i915: enumerate and init each supported region
  drm/i915: Allow i915 to manage the vma offset nodes instead of drm
    core
  drm/i915: Introduce DRM_I915_GEM_MMAP_OFFSET
  drm/i915/lmem: add helper to get CPU accessible offset
  drm/i915: Add cpu and lmem fault handlers
  drm/i915: cpu-map based dumb buffers
  drm/i915: Introduce GEM_OBJECT_SETPARAM with I915_PARAM_MEMORY_REGION
  drm/i915/query: Expose memory regions through the query uAPI

Daniele Ceraolo Spurio (5):
  drm/i915: define HAS_MAPPABLE_APERTURE
  drm/i915: do not map aperture if it is not available.
  drm/i915: expose missing map_gtt support to users
  drm/i915: set num_fence_regs to 0 if there is no aperture
  drm/i915: error capture with no ggtt slot

Matthew Auld (20):
  drm/i915: buddy allocator
  drm/i915: introduce intel_memory_region
  drm/i915/region: support basic eviction
  drm/i915/region: support continuous allocations
  drm/i915/region: support volatile objects
  drm/i915: support creating LMEM objects
  drm/i915/blt: support copying objects
  drm/i915/selftests: move gpu-write-dw into utils
  drm/i915/selftests: add write-dword test for LMEM
  drm/i915/selftests: don't just test CACHE_NONE for huge-pages
  drm/i915/selftest: extend coverage to include LMEM huge-pages
  drm/i915/lmem: support CPU relocations
  drm/i915/lmem: support pread
  drm/i915/lmem: support pwrite
  drm/i915: treat shmem as a region
  drm/i915: treat stolen as a region
  drm/i915/selftests: check for missing aperture
  drm/i915: support basic object migration
  HAX drm/i915: add the fake lmem region
  HAX drm/i915/lmem: default userspace allocations to LMEM

Michal Wajdeczko (1):
  drm/i915: Don't try to place HWS in non-existing mappable region

 drivers/gpu/drm/i915/Makefile                 |   3 +
 drivers/gpu/drm/i915/gem/i915_gem_context.c   |  12 +
 drivers/gpu/drm/i915/gem/i915_gem_context.h   |   2 +
 .../gpu/drm/i915/gem/i915_gem_execbuffer.c    |  69 +-
 drivers/gpu/drm/i915/gem/i915_gem_ioctls.h    |   4 +
 drivers/gpu/drm/i915/gem/i915_gem_mman.c      | 370 +++++++-
 drivers/gpu/drm/i915/gem/i915_gem_object.c    | 278 ++++++
 drivers/gpu/drm/i915/gem/i915_gem_object.h    |  27 +-
 .../gpu/drm/i915/gem/i915_gem_object_blt.c    | 135 +++
 .../gpu/drm/i915/gem/i915_gem_object_blt.h    |   8 +
 .../gpu/drm/i915/gem/i915_gem_object_types.h  |  44 +
 drivers/gpu/drm/i915/gem/i915_gem_pages.c     |  20 +-
 drivers/gpu/drm/i915/gem/i915_gem_shmem.c     |  67 +-
 drivers/gpu/drm/i915/gem/i915_gem_stolen.c    |  66 +-
 .../gpu/drm/i915/gem/selftests/huge_pages.c   | 329 +++++---
 .../i915/gem/selftests/i915_gem_coherency.c   |   5 +-
 .../drm/i915/gem/selftests/i915_gem_context.c | 134 +--
 .../drm/i915/gem/selftests/i915_gem_mman.c    |  15 +-
 .../i915/gem/selftests/i915_gem_object_blt.c  | 105 +++
 .../drm/i915/gem/selftests/igt_gem_utils.c    | 135 +++
 .../drm/i915/gem/selftests/igt_gem_utils.h    |  16 +
 drivers/gpu/drm/i915/gt/intel_engine_cs.c     |   2 +-
 drivers/gpu/drm/i915/gt/intel_gpu_commands.h  |   3 +-
 drivers/gpu/drm/i915/gt/intel_reset.c         |  19 +-
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c  |  14 +-
 drivers/gpu/drm/i915/i915_buddy.c             | 413 +++++++++
 drivers/gpu/drm/i915/i915_buddy.h             | 115 +++
 drivers/gpu/drm/i915/i915_drv.c               |  38 +-
 drivers/gpu/drm/i915/i915_drv.h               |  25 +-
 drivers/gpu/drm/i915/i915_gem.c               |  75 +-
 drivers/gpu/drm/i915/i915_gem_fence_reg.c     |   6 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 119 ++-
 drivers/gpu/drm/i915/i915_gpu_error.c         |  63 +-
 drivers/gpu/drm/i915/i915_params.c            |   3 +
 drivers/gpu/drm/i915/i915_params.h            |   3 +-
 drivers/gpu/drm/i915/i915_pci.c               |  29 +-
 drivers/gpu/drm/i915/i915_query.c             |  57 ++
 drivers/gpu/drm/i915/i915_vma.c               |  21 +-
 drivers/gpu/drm/i915/intel_device_info.h      |   1 +
 drivers/gpu/drm/i915/intel_memory_region.c    | 321 +++++++
 drivers/gpu/drm/i915/intel_memory_region.h    | 121 +++
 drivers/gpu/drm/i915/intel_region_lmem.c      | 404 +++++++++
 drivers/gpu/drm/i915/intel_region_lmem.h      |  30 +
 drivers/gpu/drm/i915/selftests/i915_buddy.c   | 491 +++++++++++
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |   3 +
 .../drm/i915/selftests/i915_live_selftests.h  |   1 +
 .../drm/i915/selftests/i915_mock_selftests.h  |   2 +
 .../drm/i915/selftests/intel_memory_region.c  | 792 ++++++++++++++++++
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   9 +-
 drivers/gpu/drm/i915/selftests/mock_region.c  |  59 ++
 drivers/gpu/drm/i915/selftests/mock_region.h  |  16 +
 include/uapi/drm/i915_drm.h                   |  97 +++
 52 files changed, 4780 insertions(+), 416 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/i915_buddy.c
 create mode 100644 drivers/gpu/drm/i915/i915_buddy.h
 create mode 100644 drivers/gpu/drm/i915/intel_memory_region.c
 create mode 100644 drivers/gpu/drm/i915/intel_memory_region.h
 create mode 100644 drivers/gpu/drm/i915/intel_region_lmem.c
 create mode 100644 drivers/gpu/drm/i915/intel_region_lmem.h
 create mode 100644 drivers/gpu/drm/i915/selftests/i915_buddy.c
 create mode 100644 drivers/gpu/drm/i915/selftests/intel_memory_region.c
 create mode 100644 drivers/gpu/drm/i915/selftests/mock_region.c
 create mode 100644 drivers/gpu/drm/i915/selftests/mock_region.h