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
33static void
34nvc0_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
61static int
62nvc0_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
76struct nouveau_oclass *
77nvc0_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