drm/xe: covert sysfs over to devm

Hotunplugging the device seems to result in stuff like:

kobject_add_internal failed for tile0 with -EEXIST, don't try to
register things with the same name in the same directory.

We only remove the sysfs as part of drmm, however that is tied to the
lifetime of the driver instance and not the device underneath. Attempt
to fix by using devm for all of the remaining sysfs stuff related to the
device.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1667
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1432
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240522102143.128069-20-matthew.auld@intel.com

drivers/gpu/drm/xe/xe_device_sysfs.c

@@ -69,7 +69,7 @@ vram_d3cold_threshold_store(struct device *dev, struct device_attribute *attr,
 
 static DEVICE_ATTR_RW(vram_d3cold_threshold);
 
-static void xe_device_sysfs_fini(struct drm_device *drm, void *arg)
+static void xe_device_sysfs_fini(void *arg)
 {
 	struct xe_device *xe = arg;
 
@@ -85,5 +85,5 @@ int xe_device_sysfs_init(struct xe_device *xe)
 	if (ret)
 		return ret;
 
-	return drmm_add_action_or_reset(&xe->drm, xe_device_sysfs_fini, xe);
+	return devm_add_action_or_reset(dev, xe_device_sysfs_fini, xe);
 }

drivers/gpu/drm/xe/xe_gt_ccs_mode.c

@@ -152,7 +152,7 @@ static const struct attribute *gt_ccs_mode_attrs[] = {
 	NULL,
 };
 
-static void xe_gt_ccs_mode_sysfs_fini(struct drm_device *drm, void *arg)
+static void xe_gt_ccs_mode_sysfs_fini(void *arg)
 {
 	struct xe_gt *gt = arg;
 
@@ -184,5 +184,5 @@ int xe_gt_ccs_mode_sysfs_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
-	return drmm_add_action_or_reset(&xe->drm, xe_gt_ccs_mode_sysfs_fini, gt);
+	return devm_add_action_or_reset(xe->drm.dev, xe_gt_ccs_mode_sysfs_fini, gt);
 }

drivers/gpu/drm/xe/xe_gt_freq.c

@@ -209,7 +209,7 @@ static const struct attribute *freq_attrs[] = {
 	NULL
 };
 
-static void freq_fini(struct drm_device *drm, void *arg)
+static void freq_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -237,7 +237,7 @@ int xe_gt_freq_init(struct xe_gt *gt)
 	if (!gt->freq)
 		return -ENOMEM;
 
-	err = drmm_add_action_or_reset(&xe->drm, freq_fini, gt->freq);
+	err = devm_add_action(xe->drm.dev, freq_fini, gt->freq);
 	if (err)
 		return err;
 

drivers/gpu/drm/xe/xe_gt_idle.c

@@ -145,7 +145,7 @@ static const struct attribute *gt_idle_attrs[] = {
 	NULL,
 };
 
-static void gt_idle_sysfs_fini(struct drm_device *drm, void *arg)
+static void gt_idle_sysfs_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -182,7 +182,7 @@ int xe_gt_idle_sysfs_init(struct xe_gt_idle *gtidle)
 		return err;
 	}
 
-	return drmm_add_action_or_reset(&xe->drm, gt_idle_sysfs_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, gt_idle_sysfs_fini, kobj);
 }
 
 void xe_gt_idle_enable_c6(struct xe_gt *gt)

drivers/gpu/drm/xe/xe_gt_sysfs.c

@@ -22,7 +22,7 @@ static const struct kobj_type xe_gt_sysfs_kobj_type = {
 	.sysfs_ops = &kobj_sysfs_ops,
 };
 
-static void gt_sysfs_fini(struct drm_device *drm, void *arg)
+static void gt_sysfs_fini(void *arg)
 {
 	struct xe_gt *gt = arg;
 
@@ -51,5 +51,5 @@ int xe_gt_sysfs_init(struct xe_gt *gt)
 
 	gt->sysfs = &kg->base;
 
-	return drmm_add_action_or_reset(&xe->drm, gt_sysfs_fini, gt);
+	return devm_add_action(xe->drm.dev, gt_sysfs_fini, gt);
 }

drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c

@@ -229,7 +229,7 @@ static const struct attribute_group throttle_group_attrs = {
 	.attrs = throttle_attrs,
 };
 
-static void gt_throttle_sysfs_fini(struct drm_device *drm, void *arg)
+static void gt_throttle_sysfs_fini(void *arg)
 {
 	struct xe_gt *gt = arg;
 
@@ -245,5 +245,5 @@ int xe_gt_throttle_sysfs_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
-	return drmm_add_action_or_reset(&xe->drm, gt_throttle_sysfs_fini, gt);
+	return devm_add_action_or_reset(xe->drm.dev, gt_throttle_sysfs_fini, gt);
 }

drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c

@@ -492,7 +492,7 @@ static const struct attribute * const files[] = {
 	NULL
 };
 
-static void kobj_xe_hw_engine_class_fini(struct drm_device *drm, void *arg)
+static void kobj_xe_hw_engine_class_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -517,7 +517,7 @@ kobj_xe_hw_engine_class(struct xe_device *xe, struct kobject *parent, const char
 	}
 	keclass->xe = xe;
 
-	err = drmm_add_action_or_reset(&xe->drm, kobj_xe_hw_engine_class_fini,
+	err = devm_add_action_or_reset(xe->drm.dev, kobj_xe_hw_engine_class_fini,
 				       &keclass->base);
 	if (err)
 		return NULL;
@@ -525,7 +525,7 @@ kobj_xe_hw_engine_class(struct xe_device *xe, struct kobject *parent, const char
 	return keclass;
 }
 
-static void hw_engine_class_defaults_fini(struct drm_device *drm, void *arg)
+static void hw_engine_class_defaults_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -552,7 +552,7 @@ static int xe_add_hw_engine_class_defaults(struct xe_device *xe,
 	if (err)
 		goto err_object;
 
-	return drmm_add_action_or_reset(&xe->drm, hw_engine_class_defaults_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, hw_engine_class_defaults_fini, kobj);
 
 err_object:
 	kobject_put(kobj);
@@ -611,7 +611,7 @@ static const struct kobj_type xe_hw_engine_sysfs_kobj_type = {
 	.sysfs_ops = &xe_hw_engine_class_sysfs_ops,
 };
 
-static void hw_engine_class_sysfs_fini(struct drm_device *drm, void *arg)
+static void hw_engine_class_sysfs_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -680,7 +680,7 @@ int xe_hw_engine_class_sysfs_init(struct xe_gt *gt)
 			goto err_object;
 	}
 
-	return drmm_add_action_or_reset(&xe->drm, hw_engine_class_sysfs_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, hw_engine_class_sysfs_fini, kobj);
 
 err_object:
 	kobject_put(kobj);

drivers/gpu/drm/xe/xe_tile_sysfs.c

@@ -22,7 +22,7 @@ static const struct kobj_type xe_tile_sysfs_kobj_type = {
 	.sysfs_ops = &kobj_sysfs_ops,
 };
 
-static void tile_sysfs_fini(struct drm_device *drm, void *arg)
+static void tile_sysfs_fini(void *arg)
 {
 	struct xe_tile *tile = arg;
 
@@ -55,5 +55,5 @@ int xe_tile_sysfs_init(struct xe_tile *tile)
 	if (err)
 		return err;
 
-	return drmm_add_action_or_reset(&xe->drm, tile_sysfs_fini, tile);
+	return devm_add_action_or_reset(xe->drm.dev, tile_sysfs_fini, tile);
 }

drivers/gpu/drm/xe/xe_vram_freq.c

@@ -87,7 +87,7 @@ static const struct attribute_group freq_group_attrs = {
 	.attrs = freq_attrs,
 };
 
-static void vram_freq_sysfs_fini(struct drm_device *drm, void *arg)
+static void vram_freq_sysfs_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -122,5 +122,5 @@ int xe_vram_freq_sysfs_init(struct xe_tile *tile)
 		return err;
 	}
 
-	return drmm_add_action_or_reset(&xe->drm, vram_freq_sysfs_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, vram_freq_sysfs_fini, kobj);
 }