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8f27c543 | 1 | /* |
ebb945a9 | 2 | * Copyright 2012 Red Hat Inc. |
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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 | */ | |
24 | ||
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25 | #include <core/os.h> |
26 | #include <core/enum.h> | |
27 | #include <core/class.h> | |
28 | #include <core/engctx.h> | |
b3550969 | 29 | |
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30 | #include <subdev/timer.h> |
31 | #include <subdev/fb.h> | |
32 | ||
33 | #include <engine/crypt.h> | |
8f27c543 | 34 | |
02a841d4 | 35 | #include "fuc/nv98.fuc.h" |
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36 | |
37 | struct nv98_crypt_priv { | |
ebb945a9 | 38 | struct nouveau_crypt base; |
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39 | }; |
40 | ||
b3550969 | 41 | struct nv98_crypt_chan { |
ebb945a9 | 42 | struct nouveau_crypt_chan base; |
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43 | }; |
44 | ||
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45 | /******************************************************************************* |
46 | * Crypt object classes | |
47 | ******************************************************************************/ | |
b3550969 | 48 | |
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49 | static struct nouveau_oclass |
50 | nv98_crypt_sclass[] = { | |
51 | { 0x88b4, &nouveau_object_ofuncs }, | |
52 | {}, | |
53 | }; | |
b3550969 | 54 | |
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55 | /******************************************************************************* |
56 | * PCRYPT context | |
57 | ******************************************************************************/ | |
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58 | |
59 | static int | |
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60 | nv98_crypt_context_ctor(struct nouveau_object *parent, |
61 | struct nouveau_object *engine, | |
62 | struct nouveau_oclass *oclass, void *data, u32 size, | |
63 | struct nouveau_object **pobject) | |
8f27c543 | 64 | { |
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65 | struct nv98_crypt_chan *priv; |
66 | int ret; | |
8f27c543 | 67 | |
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68 | ret = nouveau_crypt_context_create(parent, engine, oclass, NULL, 256, |
69 | 256, NVOBJ_FLAG_ZERO_ALLOC, &priv); | |
70 | *pobject = nv_object(priv); | |
71 | if (ret) | |
72 | return ret; | |
b3550969 | 73 | |
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74 | return 0; |
75 | } | |
76 | ||
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77 | static struct nouveau_oclass |
78 | nv98_crypt_cclass = { | |
79 | .handle = NV_ENGCTX(CRYPT, 0x98), | |
80 | .ofuncs = &(struct nouveau_ofuncs) { | |
81 | .ctor = nv98_crypt_context_ctor, | |
82 | .dtor = _nouveau_crypt_context_dtor, | |
83 | .init = _nouveau_crypt_context_init, | |
84 | .fini = _nouveau_crypt_context_fini, | |
85 | .rd32 = _nouveau_crypt_context_rd32, | |
86 | .wr32 = _nouveau_crypt_context_wr32, | |
87 | }, | |
88 | }; | |
b3550969 | 89 | |
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90 | /******************************************************************************* |
91 | * PCRYPT engine/subdev functions | |
92 | ******************************************************************************/ | |
8f27c543 | 93 | |
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94 | static struct nouveau_enum nv98_crypt_isr_error_name[] = { |
95 | { 0x0000, "ILLEGAL_MTHD" }, | |
96 | { 0x0001, "INVALID_BITFIELD" }, | |
97 | { 0x0002, "INVALID_ENUM" }, | |
98 | { 0x0003, "QUERY" }, | |
99 | {} | |
100 | }; | |
101 | ||
102 | static void | |
ebb945a9 | 103 | nv98_crypt_intr(struct nouveau_subdev *subdev) |
b3550969 | 104 | { |
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105 | struct nv98_crypt_priv *priv = (void *)subdev; |
106 | u32 disp = nv_rd32(priv, 0x08701c); | |
107 | u32 stat = nv_rd32(priv, 0x087008) & disp & ~(disp >> 16); | |
108 | u32 inst = nv_rd32(priv, 0x087050) & 0x3fffffff; | |
109 | u32 ssta = nv_rd32(priv, 0x087040) & 0x0000ffff; | |
110 | u32 addr = nv_rd32(priv, 0x087040) >> 16; | |
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111 | u32 mthd = (addr & 0x07ff) << 2; |
112 | u32 subc = (addr & 0x3800) >> 11; | |
ebb945a9 | 113 | u32 data = nv_rd32(priv, 0x087044); |
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114 | |
115 | if (stat & 0x00000040) { | |
ebb945a9 | 116 | nv_error(priv, "DISPATCH_ERROR ["); |
b3550969 | 117 | nouveau_enum_print(nv98_crypt_isr_error_name, ssta); |
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118 | printk("] ch 0x%08x subc %d mthd 0x%04x data 0x%08x\n", |
119 | inst, subc, mthd, data); | |
120 | nv_wr32(priv, 0x087004, 0x00000040); | |
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121 | stat &= ~0x00000040; |
122 | } | |
123 | ||
124 | if (stat) { | |
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125 | nv_error(priv, "unhandled intr 0x%08x\n", stat); |
126 | nv_wr32(priv, 0x087004, stat); | |
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127 | } |
128 | ||
ebb945a9 | 129 | nv50_fb_trap(nouveau_fb(priv), 1); |
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130 | } |
131 | ||
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132 | static int |
133 | nv98_crypt_tlb_flush(struct nouveau_engine *engine) | |
8f27c543 | 134 | { |
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135 | nv50_vm_flush_engine(&engine->base, 0x0a); |
136 | return 0; | |
8f27c543 BS |
137 | } |
138 | ||
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139 | static int |
140 | nv98_crypt_ctor(struct nouveau_object *parent, struct nouveau_object *engine, | |
141 | struct nouveau_oclass *oclass, void *data, u32 size, | |
142 | struct nouveau_object **pobject) | |
8f27c543 | 143 | { |
b3550969 | 144 | struct nv98_crypt_priv *priv; |
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145 | int ret; |
146 | ||
147 | ret = nouveau_crypt_create(parent, engine, oclass, &priv); | |
148 | *pobject = nv_object(priv); | |
149 | if (ret) | |
150 | return ret; | |
151 | ||
152 | nv_subdev(priv)->unit = 0x00004000; | |
153 | nv_subdev(priv)->intr = nv98_crypt_intr; | |
154 | nv_engine(priv)->cclass = &nv98_crypt_cclass; | |
155 | nv_engine(priv)->sclass = nv98_crypt_sclass; | |
156 | nv_engine(priv)->tlb_flush = nv98_crypt_tlb_flush; | |
157 | return 0; | |
158 | } | |
159 | ||
160 | static int | |
161 | nv98_crypt_init(struct nouveau_object *object) | |
162 | { | |
163 | struct nv98_crypt_priv *priv = (void *)object; | |
164 | int ret, i; | |
165 | ||
166 | ret = nouveau_crypt_init(&priv->base); | |
167 | if (ret) | |
168 | return ret; | |
8f27c543 | 169 | |
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170 | /* wait for exit interrupt to signal */ |
171 | nv_wait(priv, 0x087008, 0x00000010, 0x00000010); | |
172 | nv_wr32(priv, 0x087004, 0x00000010); | |
8f27c543 | 173 | |
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174 | /* upload microcode code and data segments */ |
175 | nv_wr32(priv, 0x087ff8, 0x00100000); | |
176 | for (i = 0; i < ARRAY_SIZE(nv98_pcrypt_code); i++) | |
177 | nv_wr32(priv, 0x087ff4, nv98_pcrypt_code[i]); | |
b3550969 | 178 | |
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179 | nv_wr32(priv, 0x087ff8, 0x00000000); |
180 | for (i = 0; i < ARRAY_SIZE(nv98_pcrypt_data); i++) | |
181 | nv_wr32(priv, 0x087ff4, nv98_pcrypt_data[i]); | |
8f27c543 | 182 | |
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183 | /* start it running */ |
184 | nv_wr32(priv, 0x08710c, 0x00000000); | |
185 | nv_wr32(priv, 0x087104, 0x00000000); /* ENTRY */ | |
186 | nv_wr32(priv, 0x087100, 0x00000002); /* TRIGGER */ | |
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187 | return 0; |
188 | } | |
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189 | |
190 | struct nouveau_oclass | |
191 | nv98_crypt_oclass = { | |
192 | .handle = NV_ENGINE(CRYPT, 0x98), | |
193 | .ofuncs = &(struct nouveau_ofuncs) { | |
194 | .ctor = nv98_crypt_ctor, | |
195 | .dtor = _nouveau_crypt_dtor, | |
196 | .init = nv98_crypt_init, | |
197 | .fini = _nouveau_crypt_fini, | |
198 | }, | |
199 | }; |