[Intel-gfx] [PATCH 0/3] add guard padding around i915_vma

[Andi Shyti <andi.shyti@linux.intel.com>]

Hi,

This series adds guards around vma's but setting a pages at the
beginning and at the end that work as padding.

The first user of the vma guard are scanout objects which don't
need anymore to add scratch to all the unused ggtt's and speeding
up up considerably the boot and resume by several hundreds of
milliseconds up to over a full second in slower machines.

Andi

Chris Wilson (3):
  drm/i915: Wrap all access to i915_vma.node.start|size
  drm/i915: Introduce guard pages to i915_vma
  drm/i915: Refine VT-d scanout workaround

 drivers/gpu/drm/i915/display/intel_fbdev.c    |  2 +-
 drivers/gpu/drm/i915/gem/i915_gem_domain.c    | 13 ++++
 .../gpu/drm/i915/gem/i915_gem_execbuffer.c    | 33 ++++++-----
 drivers/gpu/drm/i915/gem/i915_gem_mman.c      |  2 +-
 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c  |  2 +-
 drivers/gpu/drm/i915/gem/i915_gem_tiling.c    |  4 +-
 .../gpu/drm/i915/gem/selftests/huge_pages.c   |  2 +-
 .../i915/gem/selftests/i915_gem_client_blt.c  | 23 ++++----
 .../drm/i915/gem/selftests/i915_gem_context.c | 15 +++--
 .../drm/i915/gem/selftests/i915_gem_mman.c    |  2 +-
 .../drm/i915/gem/selftests/igt_gem_utils.c    |  7 ++-
 drivers/gpu/drm/i915/gt/gen7_renderclear.c    |  2 +-
 drivers/gpu/drm/i915/gt/intel_ggtt.c          | 39 ++++--------
 drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  |  3 +-
 drivers/gpu/drm/i915/gt/intel_renderstate.c   |  2 +-
 .../gpu/drm/i915/gt/intel_ring_submission.c   |  2 +-
 drivers/gpu/drm/i915/gt/selftest_engine_cs.c  |  8 +--
 drivers/gpu/drm/i915/gt/selftest_execlists.c  | 18 +++---
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c  | 15 ++---
 drivers/gpu/drm/i915/gt/selftest_lrc.c        | 16 ++---
 .../drm/i915/gt/selftest_ring_submission.c    |  2 +-
 drivers/gpu/drm/i915/gt/selftest_rps.c        | 12 ++--
 .../gpu/drm/i915/gt/selftest_workarounds.c    |  8 +--
 drivers/gpu/drm/i915/i915_cmd_parser.c        |  4 +-
 drivers/gpu/drm/i915/i915_debugfs.c           |  2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.h           |  3 +-
 drivers/gpu/drm/i915/i915_perf.c              |  2 +-
 drivers/gpu/drm/i915/i915_vma.c               | 59 +++++++++++++------
 drivers/gpu/drm/i915/i915_vma.h               | 52 +++++++++++++++-
 drivers/gpu/drm/i915/i915_vma_resource.c      |  4 +-
 drivers/gpu/drm/i915/i915_vma_resource.h      | 17 ++++--
 drivers/gpu/drm/i915/i915_vma_types.h         |  3 +-
 drivers/gpu/drm/i915/selftests/i915_request.c | 20 +++----
 drivers/gpu/drm/i915/selftests/igt_spinner.c  |  8 +--
 34 files changed, 246 insertions(+), 160 deletions(-)

-- 
2.37.2