[PATCH v3 0/3] Keep device awake during GT TLB invalidations

[Matthew Brost <matthew.brost@intel.com>]

Issue was raised in [1], attempt to fix this by holding PM ref when GT
TLB invalidations are in flight. An alternative solution could be hold a
PM ref when any H2G are inflight which expect a G2H.

Including two patches from [2] as they a prerequisite for this fix.

[1] https://patchwork.freedesktop.org/series/136145/
[2] https://patchwork.freedesktop.org/series/135809/

v2: Fix CI failure
v3: send correct patches

Matthew Brost (3):
  drm/xe: Add xe_gt_tlb_invalidation_fence_init helper
  drm/xe: Drop xe_gt_tlb_invalidation_wait
  drm/xe: Hold a PM ref when GT TLB invalidations are inflight

 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c   | 201 ++++++++++--------
 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h   |  12 +-
 .../gpu/drm/xe/xe_gt_tlb_invalidation_types.h |   4 +
 drivers/gpu/drm/xe/xe_pt.c                    |  26 +--
 drivers/gpu/drm/xe/xe_vm.c                    |  32 +--
 5 files changed, 143 insertions(+), 132 deletions(-)

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2.34.1