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
30static void
31nv31_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
70static void
71nv31_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
78static const struct nvkm_bus_func
79nv31_bus = {
80	.init = nv31_bus_init,
81	.intr = nv31_bus_intr,
82};
83
84int
85nv31_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