[PATCH v3 04/36] Revert "drm/xe/vf: Post migration, repopulate ring area for pending request"

[Matthew Brost <matthew.brost@intel.com>]

This reverts commit a0dda25d24e636df5c30a9370464b7cebc709faf.

Due to change in the VF migration recovery design this code
is not needed any more.

v3:
 - Add commit message (Michal / Lucas)

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/xe/xe_exec_queue.c | 24 ------------------------
 drivers/gpu/drm/xe/xe_exec_queue.h |  3 +--
 drivers/gpu/drm/xe/xe_guc_submit.c | 24 ------------------------
 drivers/gpu/drm/xe/xe_guc_submit.h |  2 --
 drivers/gpu/drm/xe/xe_sriov_vf.c   |  1 -
 5 files changed, 1 insertion(+), 53 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c
index 37b2b93b73d6..6bfaca424ca3 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.c
+++ b/drivers/gpu/drm/xe/xe_exec_queue.c
@@ -1123,27 +1123,3 @@ int xe_exec_queue_contexts_hwsp_rebase(struct xe_exec_queue *q, void *scratch)
 
 	return err;
 }
-
-/**
- * xe_exec_queue_jobs_ring_restore - Re-emit ring commands of requests pending on given queue.
- * @q: the &xe_exec_queue struct instance
- */
-void xe_exec_queue_jobs_ring_restore(struct xe_exec_queue *q)
-{
-	struct xe_gpu_scheduler *sched = &q->guc->sched;
-	struct xe_sched_job *job;
-
-	/*
-	 * This routine is used within VF migration recovery. This means
-	 * using the lock here introduces a restriction: we cannot wait
-	 * for any GFX HW response while the lock is taken.
-	 */
-	spin_lock(&sched->base.job_list_lock);
-	list_for_each_entry(job, &sched->base.pending_list, drm.list) {
-		if (xe_sched_job_is_error(job))
-			continue;
-
-		q->ring_ops->emit_job(job);
-	}
-	spin_unlock(&sched->base.job_list_lock);
-}
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.h b/drivers/gpu/drm/xe/xe_exec_queue.h
index 15ec852e7f7e..8821ceb838d0 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.h
+++ b/drivers/gpu/drm/xe/xe_exec_queue.h
@@ -92,7 +92,6 @@ void xe_exec_queue_update_run_ticks(struct xe_exec_queue *q);
 
 int xe_exec_queue_contexts_hwsp_rebase(struct xe_exec_queue *q, void *scratch);
 
-void xe_exec_queue_jobs_ring_restore(struct xe_exec_queue *q);
-
 struct xe_lrc *xe_exec_queue_lrc(struct xe_exec_queue *q);
+
 #endif
diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c
index 3ac0950f55be..16f78376f196 100644
--- a/drivers/gpu/drm/xe/xe_guc_submit.c
+++ b/drivers/gpu/drm/xe/xe_guc_submit.c
@@ -845,30 +845,6 @@ guc_exec_queue_run_job(struct drm_sched_job *drm_job)
 	return fence;
 }
 
-/**
- * xe_guc_jobs_ring_rebase - Re-emit ring commands of requests pending
- * on all queues under a guc.
- * @guc: the &xe_guc struct instance
- */
-void xe_guc_jobs_ring_rebase(struct xe_guc *guc)
-{
-	struct xe_exec_queue *q;
-	unsigned long index;
-
-	/*
-	 * This routine is used within VF migration recovery. This means
-	 * using the lock here introduces a restriction: we cannot wait
-	 * for any GFX HW response while the lock is taken.
-	 */
-	mutex_lock(&guc->submission_state.lock);
-	xa_for_each(&guc->submission_state.exec_queue_lookup, index, q) {
-		if (exec_queue_killed_or_banned_or_wedged(q))
-			continue;
-		xe_exec_queue_jobs_ring_restore(q);
-	}
-	mutex_unlock(&guc->submission_state.lock);
-}
-
 static void guc_exec_queue_free_job(struct drm_sched_job *drm_job)
 {
 	struct xe_sched_job *job = to_xe_sched_job(drm_job);
diff --git a/drivers/gpu/drm/xe/xe_guc_submit.h b/drivers/gpu/drm/xe/xe_guc_submit.h
index 78c3f07e31a0..5b4a0a6fd818 100644
--- a/drivers/gpu/drm/xe/xe_guc_submit.h
+++ b/drivers/gpu/drm/xe/xe_guc_submit.h
@@ -36,8 +36,6 @@ int xe_guc_exec_queue_memory_cat_error_handler(struct xe_guc *guc, u32 *msg,
 int xe_guc_exec_queue_reset_failure_handler(struct xe_guc *guc, u32 *msg, u32 len);
 int xe_guc_error_capture_handler(struct xe_guc *guc, u32 *msg, u32 len);
 
-void xe_guc_jobs_ring_rebase(struct xe_guc *guc);
-
 struct xe_guc_submit_exec_queue_snapshot *
 xe_guc_exec_queue_snapshot_capture(struct xe_exec_queue *q);
 void
diff --git a/drivers/gpu/drm/xe/xe_sriov_vf.c b/drivers/gpu/drm/xe/xe_sriov_vf.c
index d6e2ed9b9bbc..0581b881b628 100644
--- a/drivers/gpu/drm/xe/xe_sriov_vf.c
+++ b/drivers/gpu/drm/xe/xe_sriov_vf.c
@@ -340,7 +340,6 @@ static int gt_vf_post_migration_fixups(struct xe_gt *gt)
 		err = xe_guc_contexts_hwsp_rebase(&gt->uc.guc, buf);
 		if (err)
 			goto out;
-		xe_guc_jobs_ring_rebase(&gt->uc.guc);
 		xe_guc_ct_fixup_messages_with_ggtt(&gt->uc.guc.ct, shift);
 	}
 
-- 
2.34.1