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
32 static DEFINE_RATELIMIT_STATE(nouveau_ratelimit_state, 3 * HZ, 20);
33
34 void
nouveau_bitfield_print(const struct nouveau_bitfield * bf,u32 value)35 nouveau_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
50 const struct nouveau_enum *
nouveau_enum_find(const struct nouveau_enum * en,u32 value)51 nouveau_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
62 void
nouveau_enum_print(const struct nouveau_enum * en,u32 value)63 nouveau_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
74 int
nouveau_ratelimit(void)75 nouveau_ratelimit(void)
76 {
77 return __ratelimit(&nouveau_ratelimit_state);
78 }
79