1 | /* $NetBSD: nouveau_subdev_timer_base.c,v 1.1.1.1 2014/08/06 12:36:32 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_timer_base.c,v 1.1.1.1 2014/08/06 12:36:32 riastradh Exp $" ); |
29 | |
30 | #include "subdev/timer.h" |
31 | |
32 | bool |
33 | nouveau_timer_wait_eq(void *obj, u64 nsec, u32 addr, u32 mask, u32 data) |
34 | { |
35 | struct nouveau_timer *ptimer = nouveau_timer(obj); |
36 | u64 time0; |
37 | |
38 | time0 = ptimer->read(ptimer); |
39 | do { |
40 | if (nv_iclass(obj, NV_SUBDEV_CLASS)) { |
41 | if ((nv_rd32(obj, addr) & mask) == data) |
42 | return true; |
43 | } else { |
44 | if ((nv_ro32(obj, addr) & mask) == data) |
45 | return true; |
46 | } |
47 | } while (ptimer->read(ptimer) - time0 < nsec); |
48 | |
49 | return false; |
50 | } |
51 | |
52 | bool |
53 | nouveau_timer_wait_ne(void *obj, u64 nsec, u32 addr, u32 mask, u32 data) |
54 | { |
55 | struct nouveau_timer *ptimer = nouveau_timer(obj); |
56 | u64 time0; |
57 | |
58 | time0 = ptimer->read(ptimer); |
59 | do { |
60 | if (nv_iclass(obj, NV_SUBDEV_CLASS)) { |
61 | if ((nv_rd32(obj, addr) & mask) != data) |
62 | return true; |
63 | } else { |
64 | if ((nv_ro32(obj, addr) & mask) != data) |
65 | return true; |
66 | } |
67 | } while (ptimer->read(ptimer) - time0 < nsec); |
68 | |
69 | return false; |
70 | } |
71 | |
72 | bool |
73 | nouveau_timer_wait_cb(void *obj, u64 nsec, bool (*func)(void *), void *data) |
74 | { |
75 | struct nouveau_timer *ptimer = nouveau_timer(obj); |
76 | u64 time0; |
77 | |
78 | time0 = ptimer->read(ptimer); |
79 | do { |
80 | if (func(data) == true) |
81 | return true; |
82 | } while (ptimer->read(ptimer) - time0 < nsec); |
83 | |
84 | return false; |
85 | } |
86 | |
87 | void |
88 | nouveau_timer_alarm(void *obj, u32 nsec, struct nouveau_alarm *alarm) |
89 | { |
90 | struct nouveau_timer *ptimer = nouveau_timer(obj); |
91 | ptimer->alarm(ptimer, nsec, alarm); |
92 | } |
93 | |
94 | void |
95 | nouveau_timer_alarm_cancel(void *obj, struct nouveau_alarm *alarm) |
96 | { |
97 | struct nouveau_timer *ptimer = nouveau_timer(obj); |
98 | ptimer->alarm_cancel(ptimer, alarm); |
99 | } |
100 | |