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drm/xe/vf: Kickstart after resfix in VF post migration recovery

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GuC needs to be live for the GuC submission state machine to resubmit
anything lost during VF post-migration recovery.  Therefore, move the
kickstart step after `resfix` to ensure proper resubmission.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Tomasz Lis <tomasz.lis@intel.com>
Link: https://lore.kernel.org/r/20251008214532.3442967-23-matthew.brost@intel.com
This commit is contained in:
Matthew Brost
2025-10-08 14:45:20 -07:00
parent 24687730cd
commit fe3a615dad
1 changed files with 9 additions and 8 deletions
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17
drivers/gpu/drm/xe/xe_gt_sriov_vf.c
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@@ -1136,13 +1136,6 @@ static int vf_post_migration_fixups(struct xe_gt *gt)
static void vf_post_migration_kickstart(struct xe_gt *gt)
{
/*
* Make sure interrupts on the new HW are properly set. The GuC IRQ
* must be working at this point, since the recovery did started,
* but the rest was not enabled using the procedure from spec.
*/
xe_irq_resume(gt_to_xe(gt));
xe_guc_submit_unpause(&gt->uc.guc);
}
@@ -1162,6 +1155,13 @@ static int vf_post_migration_notify_resfix_done(struct xe_gt *gt)
if (skip_resfix)
return -EAGAIN;
/*
* Make sure interrupts on the new HW are properly set. The GuC IRQ
* must be working at this point, since the recovery did started,
* but the rest was not enabled using the procedure from spec.
*/
xe_irq_resume(gt_to_xe(gt));
return vf_notify_resfix_done(gt);
}
@@ -1185,11 +1185,12 @@ static void vf_post_migration_recovery(struct xe_gt *gt)
if (err)
goto fail;
vf_post_migration_kickstart(gt);
err = vf_post_migration_notify_resfix_done(gt);
if (err && err != -EAGAIN)
goto fail;
vf_post_migration_kickstart(gt);
xe_pm_runtime_put(xe);
xe_gt_sriov_notice(gt, "migration recovery ended\n");
return;