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#include <subdev/timer.h>
25
26bool
27nvkm_timer_wait_eq(void *obj, u64 nsec, u32 addr, u32 mask, u32 data)
28{
29	struct nvkm_timer *ptimer = nvkm_timer(obj);
30	u64 time0;
31
32	time0 = ptimer->read(ptimer);
33	do {
34		if (nv_iclass(obj, NV_SUBDEV_CLASS)) {
35			if ((nv_rd32(obj, addr) & mask) == data)
36				return true;
37		} else {
38			if ((nv_ro32(obj, addr) & mask) == data)
39				return true;
40		}
41	} while (ptimer->read(ptimer) - time0 < nsec);
42
43	return false;
44}
45
46bool
47nvkm_timer_wait_ne(void *obj, u64 nsec, u32 addr, u32 mask, u32 data)
48{
49	struct nvkm_timer *ptimer = nvkm_timer(obj);
50	u64 time0;
51
52	time0 = ptimer->read(ptimer);
53	do {
54		if (nv_iclass(obj, NV_SUBDEV_CLASS)) {
55			if ((nv_rd32(obj, addr) & mask) != data)
56				return true;
57		} else {
58			if ((nv_ro32(obj, addr) & mask) != data)
59				return true;
60		}
61	} while (ptimer->read(ptimer) - time0 < nsec);
62
63	return false;
64}
65
66bool
67nvkm_timer_wait_cb(void *obj, u64 nsec, bool (*func)(void *), void *data)
68{
69	struct nvkm_timer *ptimer = nvkm_timer(obj);
70	u64 time0;
71
72	time0 = ptimer->read(ptimer);
73	do {
74		if (func(data) == true)
75			return true;
76	} while (ptimer->read(ptimer) - time0 < nsec);
77
78	return false;
79}
80
81void
82nvkm_timer_alarm(void *obj, u32 nsec, struct nvkm_alarm *alarm)
83{
84	struct nvkm_timer *ptimer = nvkm_timer(obj);
85	ptimer->alarm(ptimer, nsec, alarm);
86}
87
88void
89nvkm_timer_alarm_cancel(void *obj, struct nvkm_alarm *alarm)
90{
91	struct nvkm_timer *ptimer = nvkm_timer(obj);
92	ptimer->alarm_cancel(ptimer, alarm);
93}
94