Re: [PATCH 0/4] Invalidate TLB cache for all GT's

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On 8/1/23 16:19, Andi Shyti wrote:
Hi,

This series revisits a once-trendy topic: TLB invalidation
support for multi-gt.  It's a theme that's been passed around and
reshaped by several of us.

I've filtered out most of the original changes from this series,
initially sent by Mauro [1]. His ideas were inspired by some
changes from Chris, who in turn was inspired by a change from
me[2], all of which stemmed from offline talks by Chris (it's
like a game of inspiration tag!).

What I've done is simply rebase and refactor the patches,
focusing solely on the changes needed for multi-gt TLB
invalidation in MMIO memory. The result is a leaner, more
targeted proposal.

Series look good to me. Feel free to add my R-B to the patches I didn't sign already.

Reviewed-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>



Other patches from the original series might follow.

Thanks,
Andi

[1] https://patchwork.freedesktop.org/series/106293/
[2] https://patchwork.freedesktop.org/series/103831/

Andi Shyti (2):
   i915/drm/gt: Move the gt defines in the gt directory
   drm/i915: Remove unnecessary include

Chris Wilson (2):
   drm/i915/gt: Move TLB invalidation to its own file
   drm/i915: Invalidate the TLBs on each GT

  drivers/gpu/drm/i915/Makefile                 |   1 +
  .../gpu/drm/i915/gem/i915_gem_object_types.h  |   4 +-
  drivers/gpu/drm/i915/gem/i915_gem_pages.c     |  15 +-
  drivers/gpu/drm/i915/gt/intel_gt.c            | 140 +--------------
  drivers/gpu/drm/i915/gt/intel_gt.h            |  12 --
  drivers/gpu/drm/i915/gt/intel_gt_defines.h    |  11 ++
  drivers/gpu/drm/i915/gt/intel_ppgtt.c         |   4 +-
  drivers/gpu/drm/i915/gt/intel_tlb.c           | 159 ++++++++++++++++++
  drivers/gpu/drm/i915/gt/intel_tlb.h           |  29 ++++
  drivers/gpu/drm/i915/gt/selftest_tlb.c        |   3 +-
  drivers/gpu/drm/i915/i915_drv.h               |   1 -
  drivers/gpu/drm/i915/i915_vma.c               |  15 +-
  12 files changed, 231 insertions(+), 163 deletions(-)
  create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_defines.h
  create mode 100644 drivers/gpu/drm/i915/gt/intel_tlb.c
  create mode 100644 drivers/gpu/drm/i915/gt/intel_tlb.h




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