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