1/*
2 * Copyright (C) 2010 Nouveau Project
3 *
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial
16 * portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 */
27
28#include <linux/ratelimit.h>
29
30#include "nouveau_util.h"
31
32static DEFINE_RATELIMIT_STATE(nouveau_ratelimit_state, 3 * HZ, 20);
33
34void
35nouveau_bitfield_print(const struct nouveau_bitfield *bf, u32 value)
36{
37	while (bf->name) {
38		if (value & bf->mask) {
39			printk(" %s", bf->name);
40			value &= ~bf->mask;
41		}
42
43		bf++;
44	}
45
46	if (value)
47		printk(" (unknown bits 0x%08x)", value);
48}
49
50const struct nouveau_enum *
51nouveau_enum_find(const struct nouveau_enum *en, u32 value)
52{
53	while (en->name) {
54		if (en->value == value)
55			return en;
56		en++;
57	}
58
59	return NULL;
60}
61
62void
63nouveau_enum_print(const struct nouveau_enum *en, u32 value)
64{
65	en = nouveau_enum_find(en, value);
66	if (en) {
67		printk("%s", en->name);
68		return;
69	}
70
71	printk("(unknown enum 0x%08x)", value);
72}
73
74int
75nouveau_ratelimit(void)
76{
77	return __ratelimit(&nouveau_ratelimit_state);
78}
79