1 | /* $NetBSD: nouveau_subdev_ibus_nve0.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
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: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_ibus_nve0.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $" ); |
29 | |
30 | #include <subdev/ibus.h> |
31 | |
32 | struct nve0_ibus_priv { |
33 | struct nouveau_ibus base; |
34 | }; |
35 | |
36 | static void |
37 | nve0_ibus_intr_hub(struct nve0_ibus_priv *priv, int i) |
38 | { |
39 | u32 addr = nv_rd32(priv, 0x122120 + (i * 0x0800)); |
40 | u32 data = nv_rd32(priv, 0x122124 + (i * 0x0800)); |
41 | u32 stat = nv_rd32(priv, 0x122128 + (i * 0x0800)); |
42 | nv_error(priv, "HUB%d: 0x%06x 0x%08x (0x%08x)\n" , i, addr, data, stat); |
43 | nv_mask(priv, 0x122128 + (i * 0x0800), 0x00000200, 0x00000000); |
44 | } |
45 | |
46 | static void |
47 | nve0_ibus_intr_rop(struct nve0_ibus_priv *priv, int i) |
48 | { |
49 | u32 addr = nv_rd32(priv, 0x124120 + (i * 0x0800)); |
50 | u32 data = nv_rd32(priv, 0x124124 + (i * 0x0800)); |
51 | u32 stat = nv_rd32(priv, 0x124128 + (i * 0x0800)); |
52 | nv_error(priv, "ROP%d: 0x%06x 0x%08x (0x%08x)\n" , i, addr, data, stat); |
53 | nv_mask(priv, 0x124128 + (i * 0x0800), 0x00000200, 0x00000000); |
54 | } |
55 | |
56 | static void |
57 | nve0_ibus_intr_gpc(struct nve0_ibus_priv *priv, int i) |
58 | { |
59 | u32 addr = nv_rd32(priv, 0x128120 + (i * 0x0800)); |
60 | u32 data = nv_rd32(priv, 0x128124 + (i * 0x0800)); |
61 | u32 stat = nv_rd32(priv, 0x128128 + (i * 0x0800)); |
62 | nv_error(priv, "GPC%d: 0x%06x 0x%08x (0x%08x)\n" , i, addr, data, stat); |
63 | nv_mask(priv, 0x128128 + (i * 0x0800), 0x00000200, 0x00000000); |
64 | } |
65 | |
66 | static void |
67 | nve0_ibus_intr(struct nouveau_subdev *subdev) |
68 | { |
69 | struct nve0_ibus_priv *priv = (void *)subdev; |
70 | u32 intr0 = nv_rd32(priv, 0x120058); |
71 | u32 intr1 = nv_rd32(priv, 0x12005c); |
72 | u32 hubnr = nv_rd32(priv, 0x120070); |
73 | u32 ropnr = nv_rd32(priv, 0x120074); |
74 | u32 gpcnr = nv_rd32(priv, 0x120078); |
75 | u32 i; |
76 | |
77 | for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) { |
78 | u32 stat = 0x00000100 << i; |
79 | if (intr0 & stat) { |
80 | nve0_ibus_intr_hub(priv, i); |
81 | intr0 &= ~stat; |
82 | } |
83 | } |
84 | |
85 | for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) { |
86 | u32 stat = 0x00010000 << i; |
87 | if (intr0 & stat) { |
88 | nve0_ibus_intr_rop(priv, i); |
89 | intr0 &= ~stat; |
90 | } |
91 | } |
92 | |
93 | for (i = 0; intr1 && i < gpcnr; i++) { |
94 | u32 stat = 0x00000001 << i; |
95 | if (intr1 & stat) { |
96 | nve0_ibus_intr_gpc(priv, i); |
97 | intr1 &= ~stat; |
98 | } |
99 | } |
100 | } |
101 | |
102 | static int |
103 | nve0_ibus_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
104 | struct nouveau_oclass *oclass, void *data, u32 size, |
105 | struct nouveau_object **pobject) |
106 | { |
107 | struct nve0_ibus_priv *priv; |
108 | int ret; |
109 | |
110 | ret = nouveau_ibus_create(parent, engine, oclass, &priv); |
111 | *pobject = nv_object(priv); |
112 | if (ret) |
113 | return ret; |
114 | |
115 | nv_subdev(priv)->intr = nve0_ibus_intr; |
116 | return 0; |
117 | } |
118 | |
119 | struct nouveau_oclass |
120 | nve0_ibus_oclass = { |
121 | .handle = NV_SUBDEV(IBUS, 0xe0), |
122 | .ofuncs = &(struct nouveau_ofuncs) { |
123 | .ctor = nve0_ibus_ctor, |
124 | .dtor = _nouveau_ibus_dtor, |
125 | .init = _nouveau_ibus_init, |
126 | .fini = _nouveau_ibus_fini, |
127 | }, |
128 | }; |
129 | |