1 /*
2 * Copyright 2012 Nouveau Community
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: Martin Peres <martin.peres@labri.fr>
23 * Ben Skeggs
24 */
25 #include "priv.h"
26
27 static void
28 gf100_bus_intr(struct nvkm_bus *bus)
29 {
30 struct nvkm_subdev *subdev = &bus->subdev;
31 struct nvkm_device *device = subdev->device;
32 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);
33
34 if (stat & 0x0000000e) {
35 u32 addr = nvkm_rd32(device, 0x009084);
36 u32 data = nvkm_rd32(device, 0x009088);
37
38 nvkm_error(subdev,
39 "MMIO %s of %08x FAULT at %06x [ %s%s%s]\n",
40 (addr & 0x00000002) ? "write" : "read", data,
41 (addr & 0x00fffffc),
42 (stat & 0x00000002) ? "!ENGINE " : "",
43 (stat & 0x00000004) ? "IBUS " : "",
44 (stat & 0x00000008) ? "TIMEOUT " : "");
45
46 nvkm_wr32(device, 0x009084, 0x00000000);
47 nvkm_wr32(device, 0x001100, (stat & 0x0000000e));
48 stat &= ~0x0000000e;
49 }
50
51 if (stat) {
52 nvkm_error(subdev, "intr %08x\n", stat);
53 nvkm_mask(device, 0x001140, stat, 0x00000000);
54 }
55 }
56
57 static void
58 gf100_bus_init(struct nvkm_bus *bus)
59 {
60 struct nvkm_device *device = bus->subdev.device;
61 nvkm_wr32(device, 0x001100, 0xffffffff);
62 nvkm_wr32(device, 0x001140, 0x0000000e);
63 }
64
65 static const struct nvkm_bus_func
66 gf100_bus = {
67 .init = gf100_bus_init,
68 .intr = gf100_bus_intr,
69 };
70
71 int
72 gf100_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus)
73 {
74 return nvkm_bus_new_(&gf100_bus, device, index, pbus);
75 }