1// SPDX-License-Identifier: MIT
 2/*
 3 * Copyright © 2023 Intel Corporation
 4 */
 5
 6#include <linux/kobject.h>
 7#include <linux/sysfs.h>
 8#include <drm/drm_managed.h>
 9
10#include "xe_tile.h"
11#include "xe_tile_sysfs.h"
12
13static void xe_tile_sysfs_kobj_release(struct kobject *kobj)
14{
15	kfree(kobj);
16}
17
18static const struct kobj_type xe_tile_sysfs_kobj_type = {
19	.release = xe_tile_sysfs_kobj_release,
20	.sysfs_ops = &kobj_sysfs_ops,
21};
22
23static void tile_sysfs_fini(struct drm_device *drm, void *arg)
24{
25	struct xe_tile *tile = arg;
26
27	kobject_put(tile->sysfs);
28}
29
30void xe_tile_sysfs_init(struct xe_tile *tile)
31{
32	struct xe_device *xe = tile_to_xe(tile);
33	struct device *dev = xe->drm.dev;
34	struct kobj_tile *kt;
35	int err;
36
37	kt = kzalloc(sizeof(*kt), GFP_KERNEL);
38	if (!kt)
39		return;
40
41	kobject_init(&kt->base, &xe_tile_sysfs_kobj_type);
42	kt->tile = tile;
43
44	err = kobject_add(&kt->base, &dev->kobj, "tile%d", tile->id);
45	if (err) {
46		kobject_put(&kt->base);
47		drm_warn(&xe->drm, "failed to register TILE sysfs directory, err: %d\n", err);
48		return;
49	}
50
51	tile->sysfs = &kt->base;
52
53	err = drmm_add_action_or_reset(&xe->drm, tile_sysfs_fini, tile);
54	if (err)
55		drm_warn(&xe->drm, "%s: drmm_add_action_or_reset failed, err: %d\n",
56			 __func__, err);
57}