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 | |
32 | static int |
33 | gk20a_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 | |
53 | struct nouveau_oclass |
54 | gk20a_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 | |