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drm/xe/vf: Abort H2G sends during VF post-migration recovery

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While VF post-migration recovery is in progress, abort H2G sends with
-ECANCEL. These messages are treated as lost, and TLB invalidation
errors are suppressed. During this phase, the H2G channel is down, and
VF recovery requires the CT lock to proceed.

v3:
 - Use xe_gt_recovery_inprogress (Michal)

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://lore.kernel.org/r/20251008214532.3442967-11-matthew.brost@intel.com
This commit is contained in:
Matthew Brost 2025-10-08 14:45:08 -07:00
parent e1587f1660
commit 489d890a39
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/xe/xe_guc_ct.c
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@ -851,7 +851,7 @@ static int __guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action,
u32 len, u32 g2h_len, u32 num_g2h,
struct g2h_fence *g2h_fence)
{
struct xe_gt *gt __maybe_unused = ct_to_gt(ct);
struct xe_gt *gt = ct_to_gt(ct);
u16 seqno;
int ret;
@ -872,7 +872,7 @@ static int __guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action,
goto out;
}
if (ct->state == XE_GUC_CT_STATE_STOPPED) {
if (ct->state == XE_GUC_CT_STATE_STOPPED || xe_gt_recovery_pending(gt)) {
ret = -ECANCELED;
goto out;
}