Commit 489d890a authored by Matthew Brost's avatar Matthew Brost
Browse files

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



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: default avatarMatthew Brost <matthew.brost@intel.com>
Reviewed-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://lore.kernel.org/r/20251008214532.3442967-11-matthew.brost@intel.com
parent e1587f16

drivers/gpu/drm/xe/xe_guc_ct.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

	}