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| 2 | |
| 3 | * Copyright © 2023 Intel Corporation
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| 4 |
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| 5 |
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| 6 | #include <linux/kobject.h>
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| 7 | #include <linux/sysfs.h>
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| 8 | #include <drm/drm_managed.h>
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| 9 |
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| 10 | #include "xe_device_types.h"
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| 11 | #include "xe_pm.h"
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| 12 | #include "xe_tile_sysfs.h"
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| 13 | #include "xe_vram_freq.h"
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| 14 |
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| 15 | static void xe_tile_sysfs_kobj_release(struct kobject *kobj)
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| 16 | {
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| 17 | kfree(kobj);
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| 18 | }
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| 19 |
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| 20 | static const struct kobj_type xe_tile_sysfs_kobj_type = {
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| 21 | .release = xe_tile_sysfs_kobj_release,
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| 22 | .sysfs_ops = &kobj_sysfs_ops,
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| 23 | };
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| 24 |
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| 25 | static void tile_sysfs_fini(void *arg)
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| 26 | {
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| 27 | struct xe_tile *tile = arg;
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| 28 |
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| 29 | kobject_put(tile->sysfs);
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| 30 | }
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| 31 |
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| 32 | int xe_tile_sysfs_init(struct xe_tile *tile)
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| 33 | {
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| 34 | struct xe_device *xe = tile_to_xe(tile);
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| 35 | struct device *dev = xe->drm.dev;
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| 36 | struct kobj_tile *kt;
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| 37 | int err;
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| 38 |
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| 39 | kt = kzalloc_obj(*kt);
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| 40 | if (!kt)
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| 41 | return -ENOMEM;
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| 42 |
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| 43 | kobject_init(&kt->base, &xe_tile_sysfs_kobj_type);
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| 44 | kt->tile = tile;
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| 45 |
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| 46 | err = kobject_add(&kt->base, &dev->kobj, "tile%d", tile->id);
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| 47 | if (err)
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| 48 | goto err_object;
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| 49 |
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| 50 | tile->sysfs = &kt->base;
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| 51 |
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| 52 | err = xe_vram_freq_sysfs_init(tile);
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| 53 | if (err)
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| 54 | goto err_object;
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| 55 |
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| 56 | return devm_add_action_or_reset(xe->drm.dev, tile_sysfs_fini, tile);
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| 57 |
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| 58 | err_object:
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| 59 | kobject_put(&kt->base);
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| 60 | return err;
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| 61 | }
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