1 | /* $NetBSD: nouveau_subdev_bus_nvc0.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_nvc0.c,v 1.1.1.1 2014/08/06 12:36:29 riastradh Exp $" ); |
30 | |
31 | #include "nv04.h" |
32 | |
33 | static void |
34 | nvc0_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 & 0x0000000e) { |
40 | u32 addr = nv_rd32(pbus, 0x009084); |
41 | u32 data = nv_rd32(pbus, 0x009088); |
42 | |
43 | nv_error(pbus, "MMIO %s of 0x%08x FAULT at 0x%06x [ %s%s%s]\n" , |
44 | (addr & 0x00000002) ? "write" : "read" , data, |
45 | (addr & 0x00fffffc), |
46 | (stat & 0x00000002) ? "!ENGINE " : "" , |
47 | (stat & 0x00000004) ? "IBUS " : "" , |
48 | (stat & 0x00000008) ? "TIMEOUT " : "" ); |
49 | |
50 | nv_wr32(pbus, 0x009084, 0x00000000); |
51 | nv_wr32(pbus, 0x001100, (stat & 0x0000000e)); |
52 | stat &= ~0x0000000e; |
53 | } |
54 | |
55 | if (stat) { |
56 | nv_error(pbus, "unknown intr 0x%08x\n" , stat); |
57 | nv_mask(pbus, 0x001140, stat, 0x00000000); |
58 | } |
59 | } |
60 | |
61 | static int |
62 | nvc0_bus_init(struct nouveau_object *object) |
63 | { |
64 | struct nv04_bus_priv *priv = (void *)object; |
65 | int ret; |
66 | |
67 | ret = nouveau_bus_init(&priv->base); |
68 | if (ret) |
69 | return ret; |
70 | |
71 | nv_wr32(priv, 0x001100, 0xffffffff); |
72 | nv_wr32(priv, 0x001140, 0x0000000e); |
73 | return 0; |
74 | } |
75 | |
76 | struct nouveau_oclass * |
77 | nvc0_bus_oclass = &(struct nv04_bus_impl) { |
78 | .base.handle = NV_SUBDEV(BUS, 0xc0), |
79 | .base.ofuncs = &(struct nouveau_ofuncs) { |
80 | .ctor = nv04_bus_ctor, |
81 | .dtor = _nouveau_bus_dtor, |
82 | .init = nvc0_bus_init, |
83 | .fini = _nouveau_bus_fini, |
84 | }, |
85 | .intr = nvc0_bus_intr, |
86 | }.base; |
87 | |