drm/xe/multi_queue: handle CGP_SYNC wait timeout during VF recovery

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The CGP_SYNC wait in xe_guc_exec_queue_group_cgp_sync() only woke on
sync_pending clearing or GuC stop. During VF migration the CT wakes all
waiters but sync_pending may still be set (the GuC lost the in-flight
message), causing the timeout path to fire and ban the group.

Add vf_recovery() as a third wake condition and exclude it from the
error path so a migration-woken wait returns success rather than
triggering a GT reset.

Assisted-by: Github-Copilot:Claude-opus-4.8
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260803230528.3428029-8-niranjana.vishwanathapura@intel.com

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Niranjana Vishwanathapura 2026-08-03 16:05:31 -07:00

parent 245d86b3d5

commit 713d515168

1 changed files with 3 additions and 4 deletions

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drivers/gpu/drm/xe/xe_guc_submit.c

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