[Intel-gfx] [PATCH 00/17] add support for huge-gtt-pages

[Matthew Auld]

Adds support for 64K, 2M and 1G pages for the 48b PPGTT. We select the largest
gtt page size which fits the layout of the sg table. To complement this we also
request THP for our shmem backed objects, which should be able to give us 2M or
1G pages depending on configuration.

Hopefully this addresses the concerns from the last version. 

Matthew Auld (17):
  drm/i915: introduce page_size_mask to dev_info
  drm/i915: introduce gtt page size
  drm/i915: align the vma start to the gtt page size
  drm/i915: align 64K objects to 2M
  drm/i915: fallback to normal pages on vma insert failure
  mm/shmem: expose driver overridable huge option
  drm/i915: request THP for shmem backed objects
  drm/i915: pass gtt page size to insert_entries
  drm/i915: enable IPS bit for 64K pages
  drm/i915: support inserting 64K pages into the 48b PPGTT
  drm/i915: disable GTT cache for 2M/1G pages
  drm/i915: support inserting 2M pages into the 48b PPGTT
  drm/i915: support inserting 1G pages into the 48b PPGTT
  drm/i915/debugfs: include some gtt_page_size metrics
  drm/i915: enable platform support for 64K pages
  drm/i915: enable platform support for 2M pages
  drm/i915: enable platform support for 1G pages

 drivers/gpu/drm/i915/i915_debugfs.c              |  37 +++-
 drivers/gpu/drm/i915/i915_drv.h                  |   3 +
 drivers/gpu/drm/i915/i915_gem.c                  |  44 +++++
 drivers/gpu/drm/i915/i915_gem_gtt.c              | 206 ++++++++++++++++++++++-
 drivers/gpu/drm/i915/i915_gem_gtt.h              |  14 +-
 drivers/gpu/drm/i915/i915_gem_object.h           |   2 +
 drivers/gpu/drm/i915/i915_pci.c                  |  29 ++++
 drivers/gpu/drm/i915/i915_reg.h                  |   3 +
 drivers/gpu/drm/i915/i915_vma.c                  |  36 ++++
 drivers/gpu/drm/i915/intel_pm.c                  |  12 +-
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c    |   3 +-
 drivers/gpu/drm/i915/selftests/mock_gem_device.c |   6 +
 drivers/gpu/drm/i915/selftests/mock_gtt.c        |   1 +
 include/linux/shmem_fs.h                         |  20 +++
 mm/shmem.c                                       |  37 ++--
 15 files changed, 416 insertions(+), 37 deletions(-)

-- 
2.9.4