1/*
2 * Move OProfile dependencies from spufs module to the kernel so it
3 * can run on non-cell PPC.
4 *
5 * Copyright (C) IBM 2005
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#undef DEBUG
23
24#include <linux/export.h>
25#include <linux/notifier.h>
26#include <asm/spu.h>
27#include "spufs/spufs.h"
28
29static BLOCKING_NOTIFIER_HEAD(spu_switch_notifier);
30
31void spu_switch_notify(struct spu *spu, struct spu_context *ctx)
32{
33	blocking_notifier_call_chain(&spu_switch_notifier,
34				     ctx ? ctx->object_id : 0, spu);
35}
36EXPORT_SYMBOL_GPL(spu_switch_notify);
37
38int spu_switch_event_register(struct notifier_block *n)
39{
40	int ret;
41	ret = blocking_notifier_chain_register(&spu_switch_notifier, n);
42	if (!ret)
43		notify_spus_active();
44	return ret;
45}
46EXPORT_SYMBOL_GPL(spu_switch_event_register);
47
48int spu_switch_event_unregister(struct notifier_block *n)
49{
50	return blocking_notifier_chain_unregister(&spu_switch_notifier, n);
51}
52EXPORT_SYMBOL_GPL(spu_switch_event_unregister);
53
54void spu_set_profile_private_kref(struct spu_context *ctx,
55				  struct kref *prof_info_kref,
56				  void (* prof_info_release) (struct kref *kref))
57{
58	ctx->prof_priv_kref = prof_info_kref;
59	ctx->prof_priv_release = prof_info_release;
60}
61EXPORT_SYMBOL_GPL(spu_set_profile_private_kref);
62
63void *spu_get_profile_private_kref(struct spu_context *ctx)
64{
65	return ctx->prof_priv_kref;
66}
67EXPORT_SYMBOL_GPL(spu_get_profile_private_kref);
68
69