drm/xe/vf: Wait for all fixups before using default LRCs

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When a context is being created during save/restore, the LRC creation
needs to wait for GGTT address space to be shifted. But it also needs
to have fixed default LRCs. This is mandatory to avoid the situation
where LRC will be created based on data from before the fixups, but
reference within exec queue will be set too late for fixups.

This fixes an issue where contexts created during save/restore have
a large chance of having one unfixed LRC, due to the xe_lrc_create()
being synced for equal start to race with default LRC fixups.

v2: Move the fixups confirmation further, behind all fixups.
  Revert some renames.

Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20260226212701.2937065-4-tomasz.lis@intel.com

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This commit is contained in:

Tomasz Lis 2026-02-26 22:27:00 +01:00 • committed by Michal Wajdeczko

parent ec172c7bef

commit f3fb5f1ebb

2 changed files with 10 additions and 8 deletions

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16

drivers/gpu/drm/xe/xe_gt_sriov_vf.c

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2

drivers/gpu/drm/xe/xe_gt_sriov_vf_types.h

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