drm/xe: Hold a PM ref when GT TLB invalidations are inflight

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Avoid GT TLB invalidation timeouts by holding a PM ref when
invalidations are inflight.

v2:
 - Drop PM ref before signaling fence (CI)
v3:
 - Move invalidation_fence_signal helper in tlb timeout to previous
   patch (Matthew Auld)

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240719172905.1527927-4-matthew.brost@intel.com
(cherry picked from commit 0a382f9bc5)
Requires: 46209ce5287b ("drm/xe: Add xe_gt_tlb_invalidation_fence_init
helper")
Requires: 0e414ab036e0 ("drm/xe: Drop xe_gt_tlb_invalidation_wait")
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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This commit is contained in:

Matthew Brost 2024-07-19 10:29:04 -07:00 • committed by Rodrigo Vivi

parent 58bfe66744

commit f002702290

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4 changed files with 29 additions and 3 deletions

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23

drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c

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1

drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h

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4

drivers/gpu/drm/xe/xe_gt_tlb_invalidation_types.h

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4

drivers/gpu/drm/xe/xe_vm.c

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