[PATCH] drm/xe: Make force_reset attributes write-only

[Michal Wajdeczko]

Stop supporting triggering GT resets from readoperations, as main
user of this feature (IGT) already switched to use write operation.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: John Harrison <John.C.Harrison at Intel.com>
---
 drivers/gpu/drm/xe/xe_gt_debugfs.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_gt_debugfs.c b/drivers/gpu/drm/xe/xe_gt_debugfs.c
index 848618acdca8..3afd0d58fa6b 100644
--- a/drivers/gpu/drm/xe/xe_gt_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_debugfs.c
@@ -349,9 +349,6 @@ static ssize_t force_reset_write(struct file *file,
 
 static int force_reset_show(struct seq_file *s, void *unused)
 {
-	struct xe_gt *gt = s->private;
-
-	force_reset(gt); /* to be deprecated! */
 	return 0;
 }
 DEFINE_SHOW_STORE_ATTRIBUTE(force_reset);
@@ -377,9 +374,6 @@ static ssize_t force_reset_sync_write(struct file *file,
 
 static int force_reset_sync_show(struct seq_file *s, void *unused)
 {
-	struct xe_gt *gt = s->private;
-
-	force_reset_sync(gt); /* to be deprecated! */
 	return 0;
 }
 DEFINE_SHOW_STORE_ATTRIBUTE(force_reset_sync);
@@ -408,8 +402,8 @@ void xe_gt_debugfs_register(struct xe_gt *gt)
 	root->d_inode->i_private = gt;
 
 	/* VF safe */
-	debugfs_create_file("force_reset", 0600, root, gt, &force_reset_fops);
-	debugfs_create_file("force_reset_sync", 0600, root, gt, &force_reset_sync_fops);
+	debugfs_create_file("force_reset", 0200, root, gt, &force_reset_fops);
+	debugfs_create_file("force_reset_sync", 0200, root, gt, &force_reset_sync_fops);
 
 	drm_debugfs_create_files(vf_safe_debugfs_list,
 				 ARRAY_SIZE(vf_safe_debugfs_list),
-- 
2.47.1