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 "nv04.h"
25
26static int
27gk20a_timer_init(struct nvkm_object *object)
28{
29	struct nv04_timer_priv *priv = (void *)object;
30	u32 hi = upper_32_bits(priv->suspend_time);
31	u32 lo = lower_32_bits(priv->suspend_time);
32	int ret;
33
34	ret = nvkm_timer_init(&priv->base);
35	if (ret)
36		return ret;
37
38	nv_debug(priv, "time low        : 0x%08x\n", lo);
39	nv_debug(priv, "time high       : 0x%08x\n", hi);
40
41	/* restore the time before suspend */
42	nv_wr32(priv, NV04_PTIMER_TIME_1, hi);
43	nv_wr32(priv, NV04_PTIMER_TIME_0, lo);
44	return 0;
45}
46
47struct nvkm_oclass
48gk20a_timer_oclass = {
49	.handle = NV_SUBDEV(TIMER, 0xff),
50	.ofuncs = &(struct nvkm_ofuncs) {
51		.ctor = nv04_timer_ctor,
52		.dtor = nv04_timer_dtor,
53		.init = gk20a_timer_init,
54		.fini = nv04_timer_fini,
55	}
56};
57