1 | /* $NetBSD: nouveau_engine_crypt_nv98.c,v 1.2 2014/08/23 08:03:33 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_engine_crypt_nv98.c,v 1.2 2014/08/23 08:03:33 riastradh Exp $" ); |
29 | |
30 | #include <core/client.h> |
31 | #include <core/os.h> |
32 | #include <core/enum.h> |
33 | #include <core/class.h> |
34 | #include <core/engctx.h> |
35 | |
36 | #include <subdev/timer.h> |
37 | #include <subdev/fb.h> |
38 | |
39 | #include <engine/falcon.h> |
40 | #include <engine/fifo.h> |
41 | #include <engine/crypt.h> |
42 | |
43 | #include "fuc/nv98.fuc.h" |
44 | |
45 | struct nv98_crypt_priv { |
46 | struct nouveau_falcon base; |
47 | }; |
48 | |
49 | /******************************************************************************* |
50 | * Crypt object classes |
51 | ******************************************************************************/ |
52 | |
53 | static struct nouveau_oclass |
54 | nv98_crypt_sclass[] = { |
55 | { 0x88b4, &nouveau_object_ofuncs }, |
56 | {}, |
57 | }; |
58 | |
59 | /******************************************************************************* |
60 | * PCRYPT context |
61 | ******************************************************************************/ |
62 | |
63 | static struct nouveau_oclass |
64 | nv98_crypt_cclass = { |
65 | .handle = NV_ENGCTX(CRYPT, 0x98), |
66 | .ofuncs = &(struct nouveau_ofuncs) { |
67 | .ctor = _nouveau_falcon_context_ctor, |
68 | .dtor = _nouveau_falcon_context_dtor, |
69 | .init = _nouveau_falcon_context_init, |
70 | .fini = _nouveau_falcon_context_fini, |
71 | .rd32 = _nouveau_falcon_context_rd32, |
72 | .wr32 = _nouveau_falcon_context_wr32, |
73 | }, |
74 | }; |
75 | |
76 | /******************************************************************************* |
77 | * PCRYPT engine/subdev functions |
78 | ******************************************************************************/ |
79 | |
80 | static const struct nouveau_enum nv98_crypt_isr_error_name[] = { |
81 | { 0x0000, "ILLEGAL_MTHD" }, |
82 | { 0x0001, "INVALID_BITFIELD" }, |
83 | { 0x0002, "INVALID_ENUM" }, |
84 | { 0x0003, "QUERY" }, |
85 | {} |
86 | }; |
87 | |
88 | static void |
89 | nv98_crypt_intr(struct nouveau_subdev *subdev) |
90 | { |
91 | struct nouveau_fifo *pfifo = nouveau_fifo(subdev); |
92 | struct nouveau_engine *engine = nv_engine(subdev); |
93 | struct nouveau_object *engctx; |
94 | struct nv98_crypt_priv *priv = (void *)subdev; |
95 | u32 disp = nv_rd32(priv, 0x08701c); |
96 | u32 stat = nv_rd32(priv, 0x087008) & disp & ~(disp >> 16); |
97 | u32 inst = nv_rd32(priv, 0x087050) & 0x3fffffff; |
98 | u32 ssta = nv_rd32(priv, 0x087040) & 0x0000ffff; |
99 | u32 addr = nv_rd32(priv, 0x087040) >> 16; |
100 | u32 mthd = (addr & 0x07ff) << 2; |
101 | u32 subc = (addr & 0x3800) >> 11; |
102 | u32 data = nv_rd32(priv, 0x087044); |
103 | int chid; |
104 | |
105 | engctx = nouveau_engctx_get(engine, inst); |
106 | chid = pfifo->chid(pfifo, engctx); |
107 | |
108 | if (stat & 0x00000040) { |
109 | nv_error(priv, "DISPATCH_ERROR [" ); |
110 | nouveau_enum_print(nv98_crypt_isr_error_name, ssta); |
111 | pr_cont("] ch %d [0x%010" PRIx64" %s] subc %d mthd 0x%04x data 0x%08x\n" , |
112 | chid, (u64)inst << 12, nouveau_client_name(engctx), |
113 | subc, mthd, data); |
114 | nv_wr32(priv, 0x087004, 0x00000040); |
115 | stat &= ~0x00000040; |
116 | } |
117 | |
118 | if (stat) { |
119 | nv_error(priv, "unhandled intr 0x%08x\n" , stat); |
120 | nv_wr32(priv, 0x087004, stat); |
121 | } |
122 | |
123 | nouveau_engctx_put(engctx); |
124 | } |
125 | |
126 | static int |
127 | nv98_crypt_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
128 | struct nouveau_oclass *oclass, void *data, u32 size, |
129 | struct nouveau_object **pobject) |
130 | { |
131 | struct nv98_crypt_priv *priv; |
132 | int ret; |
133 | |
134 | ret = nouveau_falcon_create(parent, engine, oclass, 0x087000, true, |
135 | "PCRYPT" , "crypt" , &priv); |
136 | *pobject = nv_object(priv); |
137 | if (ret) |
138 | return ret; |
139 | |
140 | nv_subdev(priv)->unit = 0x00004000; |
141 | nv_subdev(priv)->intr = nv98_crypt_intr; |
142 | nv_engine(priv)->cclass = &nv98_crypt_cclass; |
143 | nv_engine(priv)->sclass = nv98_crypt_sclass; |
144 | nv_falcon(priv)->code.data = nv98_pcrypt_code; |
145 | nv_falcon(priv)->code.size = sizeof(nv98_pcrypt_code); |
146 | nv_falcon(priv)->data.data = nv98_pcrypt_data; |
147 | nv_falcon(priv)->data.size = sizeof(nv98_pcrypt_data); |
148 | return 0; |
149 | } |
150 | |
151 | struct nouveau_oclass |
152 | nv98_crypt_oclass = { |
153 | .handle = NV_ENGINE(CRYPT, 0x98), |
154 | .ofuncs = &(struct nouveau_ofuncs) { |
155 | .ctor = nv98_crypt_ctor, |
156 | .dtor = _nouveau_falcon_dtor, |
157 | .init = _nouveau_falcon_init, |
158 | .fini = _nouveau_falcon_fini, |
159 | .rd32 = _nouveau_falcon_rd32, |
160 | .wr32 = _nouveau_falcon_wr32, |
161 | }, |
162 | }; |
163 | |