| 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_pm.h" |
| 11 | #include "xe_tile.h" |
| 12 | #include "xe_tile_sysfs.h" |
| 13 | #include "xe_vram_freq.h" |
| 14 | |
| 15 | static void xe_tile_sysfs_kobj_release(struct kobject *kobj) |
| 16 | { |
| 17 | kfree(objp: kobj); |
| 18 | } |
| 19 | |
| 20 | static const struct kobj_type xe_tile_sysfs_kobj_type = { |
| 21 | .release = xe_tile_sysfs_kobj_release, |
| 22 | .sysfs_ops = &kobj_sysfs_ops, |
| 23 | }; |
| 24 | |
| 25 | static void tile_sysfs_fini(void *arg) |
| 26 | { |
| 27 | struct xe_tile *tile = arg; |
| 28 | |
| 29 | kobject_put(kobj: tile->sysfs); |
| 30 | } |
| 31 | |
| 32 | int xe_tile_sysfs_init(struct xe_tile *tile) |
| 33 | { |
| 34 | struct xe_device *xe = tile_to_xe(tile); |
| 35 | struct device *dev = xe->drm.dev; |
| 36 | struct kobj_tile *kt; |
| 37 | int err; |
| 38 | |
| 39 | kt = kzalloc(sizeof(*kt), GFP_KERNEL); |
| 40 | if (!kt) |
| 41 | return -ENOMEM; |
| 42 | |
| 43 | kobject_init(kobj: &kt->base, ktype: &xe_tile_sysfs_kobj_type); |
| 44 | kt->tile = tile; |
| 45 | |
| 46 | err = kobject_add(kobj: &kt->base, parent: &dev->kobj, fmt: "tile%d", tile->id); |
| 47 | if (err) |
| 48 | goto err_object; |
| 49 | |
| 50 | tile->sysfs = &kt->base; |
| 51 | |
| 52 | err = xe_vram_freq_sysfs_init(tile); |
| 53 | if (err) |
| 54 | goto err_object; |
| 55 | |
| 56 | return devm_add_action_or_reset(xe->drm.dev, tile_sysfs_fini, tile); |
| 57 | |
| 58 | err_object: |
| 59 | kobject_put(kobj: &kt->base); |
| 60 | return err; |
| 61 | } |
| 62 |