1 | /* $NetBSD: nouveau_subdev_bus_nv04.c,v 1.1.1.1 2014/08/06 12:36:29 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Nouveau Community |
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: Martin Peres <martin.peres@labri.fr> |
25 | * Ben Skeggs |
26 | */ |
27 | |
28 | #include <sys/cdefs.h> |
29 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_bus_nv04.c,v 1.1.1.1 2014/08/06 12:36:29 riastradh Exp $" ); |
30 | |
31 | #include "nv04.h" |
32 | |
33 | static void |
34 | nv04_bus_intr(struct nouveau_subdev *subdev) |
35 | { |
36 | struct nouveau_bus *pbus = nouveau_bus(subdev); |
37 | u32 stat = nv_rd32(pbus, 0x001100) & nv_rd32(pbus, 0x001140); |
38 | |
39 | if (stat & 0x00000001) { |
40 | nv_error(pbus, "BUS ERROR\n" ); |
41 | stat &= ~0x00000001; |
42 | nv_wr32(pbus, 0x001100, 0x00000001); |
43 | } |
44 | |
45 | if (stat & 0x00000110) { |
46 | subdev = nouveau_subdev(subdev, NVDEV_SUBDEV_GPIO); |
47 | if (subdev && subdev->intr) |
48 | subdev->intr(subdev); |
49 | stat &= ~0x00000110; |
50 | nv_wr32(pbus, 0x001100, 0x00000110); |
51 | } |
52 | |
53 | if (stat) { |
54 | nv_error(pbus, "unknown intr 0x%08x\n" , stat); |
55 | nv_mask(pbus, 0x001140, stat, 0x00000000); |
56 | } |
57 | } |
58 | |
59 | static int |
60 | nv04_bus_init(struct nouveau_object *object) |
61 | { |
62 | struct nv04_bus_priv *priv = (void *)object; |
63 | |
64 | nv_wr32(priv, 0x001100, 0xffffffff); |
65 | nv_wr32(priv, 0x001140, 0x00000111); |
66 | |
67 | return nouveau_bus_init(&priv->base); |
68 | } |
69 | |
70 | int |
71 | nv04_bus_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
72 | struct nouveau_oclass *oclass, void *data, u32 size, |
73 | struct nouveau_object **pobject) |
74 | { |
75 | struct nv04_bus_impl *impl = (void *)oclass; |
76 | struct nv04_bus_priv *priv; |
77 | int ret; |
78 | |
79 | ret = nouveau_bus_create(parent, engine, oclass, &priv); |
80 | *pobject = nv_object(priv); |
81 | if (ret) |
82 | return ret; |
83 | |
84 | nv_subdev(priv)->intr = impl->intr; |
85 | priv->base.hwsq_exec = impl->hwsq_exec; |
86 | priv->base.hwsq_size = impl->hwsq_size; |
87 | return 0; |
88 | } |
89 | |
90 | struct nouveau_oclass * |
91 | nv04_bus_oclass = &(struct nv04_bus_impl) { |
92 | .base.handle = NV_SUBDEV(BUS, 0x04), |
93 | .base.ofuncs = &(struct nouveau_ofuncs) { |
94 | .ctor = nv04_bus_ctor, |
95 | .dtor = _nouveau_bus_dtor, |
96 | .init = nv04_bus_init, |
97 | .fini = _nouveau_bus_fini, |
98 | }, |
99 | .intr = nv04_bus_intr, |
100 | }.base; |
101 | |