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1 | /* |
2 | * Copyright 2012 Red Hat Inc. | |
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: Ben Skeggs | |
23 | */ | |
e3d26d08 | 24 | #include "priv.h" |
2c1a425e | 25 | |
2c1a425e | 26 | static void |
551d3417 | 27 | gk104_ibus_intr_hub(struct nvkm_subdev *ibus, int i) |
2c1a425e | 28 | { |
551d3417 | 29 | struct nvkm_device *device = ibus->device; |
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30 | u32 addr = nvkm_rd32(device, 0x122120 + (i * 0x0800)); |
31 | u32 data = nvkm_rd32(device, 0x122124 + (i * 0x0800)); | |
32 | u32 stat = nvkm_rd32(device, 0x122128 + (i * 0x0800)); | |
551d3417 | 33 | nvkm_error(ibus, "HUB%d: %06x %08x (%08x)\n", i, addr, data, stat); |
fef5cc0f | 34 | nvkm_mask(device, 0x122128 + (i * 0x0800), 0x00000200, 0x00000000); |
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35 | } |
36 | ||
37 | static void | |
551d3417 | 38 | gk104_ibus_intr_rop(struct nvkm_subdev *ibus, int i) |
2c1a425e | 39 | { |
551d3417 | 40 | struct nvkm_device *device = ibus->device; |
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41 | u32 addr = nvkm_rd32(device, 0x124120 + (i * 0x0800)); |
42 | u32 data = nvkm_rd32(device, 0x124124 + (i * 0x0800)); | |
43 | u32 stat = nvkm_rd32(device, 0x124128 + (i * 0x0800)); | |
551d3417 | 44 | nvkm_error(ibus, "ROP%d: %06x %08x (%08x)\n", i, addr, data, stat); |
fef5cc0f | 45 | nvkm_mask(device, 0x124128 + (i * 0x0800), 0x00000200, 0x00000000); |
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46 | } |
47 | ||
48 | static void | |
551d3417 | 49 | gk104_ibus_intr_gpc(struct nvkm_subdev *ibus, int i) |
2c1a425e | 50 | { |
551d3417 | 51 | struct nvkm_device *device = ibus->device; |
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52 | u32 addr = nvkm_rd32(device, 0x128120 + (i * 0x0800)); |
53 | u32 data = nvkm_rd32(device, 0x128124 + (i * 0x0800)); | |
54 | u32 stat = nvkm_rd32(device, 0x128128 + (i * 0x0800)); | |
551d3417 | 55 | nvkm_error(ibus, "GPC%d: %06x %08x (%08x)\n", i, addr, data, stat); |
fef5cc0f | 56 | nvkm_mask(device, 0x128128 + (i * 0x0800), 0x00000200, 0x00000000); |
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57 | } |
58 | ||
e3d26d08 | 59 | void |
551d3417 | 60 | gk104_ibus_intr(struct nvkm_subdev *ibus) |
2c1a425e | 61 | { |
551d3417 | 62 | struct nvkm_device *device = ibus->device; |
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63 | u32 intr0 = nvkm_rd32(device, 0x120058); |
64 | u32 intr1 = nvkm_rd32(device, 0x12005c); | |
65 | u32 hubnr = nvkm_rd32(device, 0x120070); | |
66 | u32 ropnr = nvkm_rd32(device, 0x120074); | |
67 | u32 gpcnr = nvkm_rd32(device, 0x120078); | |
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68 | u32 i; |
69 | ||
70 | for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) { | |
71 | u32 stat = 0x00000100 << i; | |
72 | if (intr0 & stat) { | |
ac51596f | 73 | gk104_ibus_intr_hub(ibus, i); |
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74 | intr0 &= ~stat; |
75 | } | |
76 | } | |
77 | ||
78 | for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) { | |
79 | u32 stat = 0x00010000 << i; | |
80 | if (intr0 & stat) { | |
ac51596f | 81 | gk104_ibus_intr_rop(ibus, i); |
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82 | intr0 &= ~stat; |
83 | } | |
84 | } | |
85 | ||
86 | for (i = 0; intr1 && i < gpcnr; i++) { | |
87 | u32 stat = 0x00000001 << i; | |
88 | if (intr1 & stat) { | |
ac51596f | 89 | gk104_ibus_intr_gpc(ibus, i); |
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90 | intr1 &= ~stat; |
91 | } | |
92 | } | |
93 | } | |
94 | ||
0892a5f2 | 95 | static int |
551d3417 | 96 | gk104_ibus_init(struct nvkm_subdev *ibus) |
0892a5f2 | 97 | { |
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98 | struct nvkm_device *device = ibus->device; |
99 | nvkm_mask(device, 0x122318, 0x0003ffff, 0x00001000); | |
100 | nvkm_mask(device, 0x12231c, 0x0003ffff, 0x00000200); | |
101 | nvkm_mask(device, 0x122310, 0x0003ffff, 0x00000800); | |
102 | nvkm_mask(device, 0x122348, 0x0003ffff, 0x00000100); | |
103 | nvkm_mask(device, 0x1223b0, 0x0003ffff, 0x00000fff); | |
104 | nvkm_mask(device, 0x122348, 0x0003ffff, 0x00000200); | |
105 | nvkm_mask(device, 0x122358, 0x0003ffff, 0x00002880); | |
106 | return 0; | |
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107 | } |
108 | ||
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109 | static const struct nvkm_subdev_func |
110 | gk104_ibus = { | |
111 | .preinit = gk104_ibus_init, | |
112 | .init = gk104_ibus_init, | |
113 | .intr = gk104_ibus_intr, | |
114 | }; | |
2c1a425e | 115 | |
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116 | int |
117 | gk104_ibus_new(struct nvkm_device *device, int index, | |
118 | struct nvkm_subdev **pibus) | |
119 | { | |
120 | struct nvkm_subdev *ibus; | |
121 | if (!(ibus = *pibus = kzalloc(sizeof(*ibus), GFP_KERNEL))) | |
122 | return -ENOMEM; | |
56d06fa2 | 123 | nvkm_subdev_ctor(&gk104_ibus, device, index, ibus); |
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124 | return 0; |
125 | } |