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 #include <subdev/gpio.h>
28 #include <subdev/therm.h>
29
30 static void
nv31_bus_intr(struct nvkm_bus * bus)31 nv31_bus_intr(struct nvkm_bus *bus)
32 {
33 struct nvkm_subdev *subdev = &bus->subdev;
34 struct nvkm_device *device = subdev->device;
35 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);
36 u32 gpio = nvkm_rd32(device, 0x001104) & nvkm_rd32(device, 0x001144);
37
38 if (gpio) {
39 struct nvkm_gpio *gpio = device->gpio;
40 if (gpio)
41 nvkm_subdev_intr(&gpio->subdev);
42 }
43
44 if (stat & 0x00000008) { /* NV41- */
45 u32 addr = nvkm_rd32(device, 0x009084);
46 u32 data = nvkm_rd32(device, 0x009088);
47
48 nvkm_error_ratelimited(subdev, "MMIO %s of %08x FAULT at %06x\n",
49 (addr & 0x00000002) ? "write" : "read", data,
50 (addr & 0x00fffffc));
51
52 stat &= ~0x00000008;
53 nvkm_wr32(device, 0x001100, 0x00000008);
54 }
55
56 if (stat & 0x00070000) {
57 struct nvkm_therm *therm = device->therm;
58 if (therm)
59 nvkm_subdev_intr(&therm->subdev);
60 stat &= ~0x00070000;
61 nvkm_wr32(device, 0x001100, 0x00070000);
62 }
63
64 if (stat) {
65 nvkm_error(subdev, "intr %08x\n", stat);
66 nvkm_mask(device, 0x001140, stat, 0x00000000);
67 }
68 }
69
70 static void
nv31_bus_init(struct nvkm_bus * bus)71 nv31_bus_init(struct nvkm_bus *bus)
72 {
73 struct nvkm_device *device = bus->subdev.device;
74 nvkm_wr32(device, 0x001100, 0xffffffff);
75 nvkm_wr32(device, 0x001140, 0x00070008);
76 }
77
78 static const struct nvkm_bus_func
79 nv31_bus = {
80 .init = nv31_bus_init,
81 .intr = nv31_bus_intr,
82 };
83
84 int
nv31_bus_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_bus ** pbus)85 nv31_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
86 struct nvkm_bus **pbus)
87 {
88 return nvkm_bus_new_(&nv31_bus, device, type, inst, pbus);
89 }
90