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#include "xe_vram_freq.h"
13
14static void xe_tile_sysfs_kobj_release(struct kobject *kobj)
15{
16	kfree(kobj);
17}
18
19static const struct kobj_type xe_tile_sysfs_kobj_type = {
20	.release = xe_tile_sysfs_kobj_release,
21	.sysfs_ops = &kobj_sysfs_ops,
22};
23
24static void tile_sysfs_fini(struct drm_device *drm, void *arg)
25{
26	struct xe_tile *tile = arg;
27
28	kobject_put(tile->sysfs);
29}
30
31void xe_tile_sysfs_init(struct xe_tile *tile)
32{
33	struct xe_device *xe = tile_to_xe(tile);
34	struct device *dev = xe->drm.dev;
35	struct kobj_tile *kt;
36	int err;
37
38	kt = kzalloc(sizeof(*kt), GFP_KERNEL);
39	if (!kt)
40		return;
41
42	kobject_init(&kt->base, &xe_tile_sysfs_kobj_type);
43	kt->tile = tile;
44
45	err = kobject_add(&kt->base, &dev->kobj, "tile%d", tile->id);
46	if (err) {
47		kobject_put(&kt->base);
48		drm_warn(&xe->drm, "failed to register TILE sysfs directory, err: %d\n", err);
49		return;
50	}
51
52	tile->sysfs = &kt->base;
53
54	xe_vram_freq_sysfs_init(tile);
55
56	err = drmm_add_action_or_reset(&xe->drm, tile_sysfs_fini, tile);
57	if (err)
58		drm_warn(&xe->drm, "%s: drmm_add_action_or_reset failed, err: %d\n",
59			 __func__, err);
60}