1/* $NetBSD: nouveau_subdev_timer_gk20a.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_gk20a.c,v 1.1.1.1 2014/08/06 12:36:32 riastradh Exp $");
29
30#include "nv04.h"
31
32static int
33gk20a_timer_init(struct nouveau_object *object)
34{
35 struct nv04_timer_priv *priv = (void *)object;
36 u32 hi = upper_32_bits(priv->suspend_time);
37 u32 lo = lower_32_bits(priv->suspend_time);
38 int ret;
39
40 ret = nouveau_timer_init(&priv->base);
41 if (ret)
42 return ret;
43
44 nv_debug(priv, "time low : 0x%08x\n", lo);
45 nv_debug(priv, "time high : 0x%08x\n", hi);
46
47 /* restore the time before suspend */
48 nv_wr32(priv, NV04_PTIMER_TIME_1, hi);
49 nv_wr32(priv, NV04_PTIMER_TIME_0, lo);
50 return 0;
51}
52
53struct nouveau_oclass
54gk20a_timer_oclass = {
55 .handle = NV_SUBDEV(TIMER, 0xff),
56 .ofuncs = &(struct nouveau_ofuncs) {
57 .ctor = nv04_timer_ctor,
58 .dtor = nv04_timer_dtor,
59 .init = gk20a_timer_init,
60 .fini = nv04_timer_fini,
61 }
62};
63