[PATCH 3/3] drm/xe: Avoid PM wake reference during VF migration

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

Virtual Functions (VFs) do not use runtime PM. Avoid taking PM
references during VF migration, as lockdep may get confused—VF migration
occurs in the reclaim path, and waking a PM reference can trigger memory
allocation warnings.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/xe/xe_gt_sriov_vf.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
index 46518e629ba3..d0b102ab6ce8 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
@@ -31,7 +31,6 @@
 #include "xe_lrc.h"
 #include "xe_memirq.h"
 #include "xe_mmio.h"
-#include "xe_pm.h"
 #include "xe_sriov.h"
 #include "xe_sriov_vf.h"
 #include "xe_sriov_vf_ccs.h"
@@ -1218,7 +1217,6 @@ static void vf_post_migration_recovery(struct xe_gt *gt)
 
 	xe_gt_sriov_dbg(gt, "migration recovery in progress\n");
 
-	xe_pm_runtime_get(xe);
 	retry = vf_post_migration_shutdown(gt);
 	if (retry)
 		goto queue;
@@ -1241,12 +1239,10 @@ static void vf_post_migration_recovery(struct xe_gt *gt)
 
 	vf_post_migration_kickstart(gt);
 
-	xe_pm_runtime_put(xe);
 	xe_gt_sriov_notice(gt, "migration recovery ended\n");
 	return;
 fail:
 	vf_post_migration_abort(gt);
-	xe_pm_runtime_put(xe);
 	xe_gt_sriov_err(gt, "migration recovery failed (%pe)\n", ERR_PTR(err));
 	xe_device_declare_wedged(xe);
 	return;
@@ -1254,7 +1250,6 @@ static void vf_post_migration_recovery(struct xe_gt *gt)
 queue:
 	xe_gt_sriov_info(gt, "Re-queuing migration recovery\n");
 	queue_work(gt->ordered_wq, &gt->sriov.vf.migration.worker);
-	xe_pm_runtime_put(xe);
 }
 
 static void migration_worker_func(struct work_struct *w)
-- 
2.34.1