1 /* $NetBSD: nouveau_nvkm_subdev_bus_nv31.c,v 1.3 2021/12/18 23:45:38 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 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_bus_nv31.c,v 1.3 2021/12/18 23:45:38 riastradh Exp $");
29
30 #include "priv.h"
31
32 #include <subdev/gpio.h>
33 #include <subdev/therm.h>
34
35 static void
nv31_bus_intr(struct nvkm_bus * bus)36 nv31_bus_intr(struct nvkm_bus *bus)
37 {
38 struct nvkm_subdev *subdev = &bus->subdev;
39 struct nvkm_device *device = subdev->device;
40 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);
41 u32 gpio = nvkm_rd32(device, 0x001104) & nvkm_rd32(device, 0x001144);
42
43 if (gpio) {
44 struct nvkm_gpio *gpio = device->gpio;
45 if (gpio)
46 nvkm_subdev_intr(&gpio->subdev);
47 }
48
49 if (stat & 0x00000008) { /* NV41- */
50 u32 addr = nvkm_rd32(device, 0x009084);
51 u32 data = nvkm_rd32(device, 0x009088);
52
53 nvkm_error(subdev, "MMIO %s of %08x FAULT at %06x\n",
54 (addr & 0x00000002) ? "write" : "read", data,
55 (addr & 0x00fffffc));
56
57 stat &= ~0x00000008;
58 nvkm_wr32(device, 0x001100, 0x00000008);
59 }
60
61 if (stat & 0x00070000) {
62 struct nvkm_therm *therm = device->therm;
63 if (therm)
64 nvkm_subdev_intr(&therm->subdev);
65 stat &= ~0x00070000;
66 nvkm_wr32(device, 0x001100, 0x00070000);
67 }
68
69 if (stat) {
70 nvkm_error(subdev, "intr %08x\n", stat);
71 nvkm_mask(device, 0x001140, stat, 0x00000000);
72 }
73 }
74
75 static void
nv31_bus_init(struct nvkm_bus * bus)76 nv31_bus_init(struct nvkm_bus *bus)
77 {
78 struct nvkm_device *device = bus->subdev.device;
79 nvkm_wr32(device, 0x001100, 0xffffffff);
80 nvkm_wr32(device, 0x001140, 0x00070008);
81 }
82
83 static const struct nvkm_bus_func
84 nv31_bus = {
85 .init = nv31_bus_init,
86 .intr = nv31_bus_intr,
87 };
88
89 int
nv31_bus_new(struct nvkm_device * device,int index,struct nvkm_bus ** pbus)90 nv31_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus)
91 {
92 return nvkm_bus_new_(&nv31_bus, device, index, pbus);
93 }
94