1 | /* $NetBSD: nouveau_engine_crypt_nv84.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_nv84.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 | #include <core/gpuobj.h> |
36 | |
37 | #include <subdev/fb.h> |
38 | |
39 | #include <engine/fifo.h> |
40 | #include <engine/crypt.h> |
41 | |
42 | struct nv84_crypt_priv { |
43 | struct nouveau_engine base; |
44 | }; |
45 | |
46 | /******************************************************************************* |
47 | * Crypt object classes |
48 | ******************************************************************************/ |
49 | |
50 | static int |
51 | nv84_crypt_object_ctor(struct nouveau_object *parent, |
52 | struct nouveau_object *engine, |
53 | struct nouveau_oclass *oclass, void *data, u32 size, |
54 | struct nouveau_object **pobject) |
55 | { |
56 | struct nouveau_gpuobj *obj; |
57 | int ret; |
58 | |
59 | ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent, |
60 | 16, 16, 0, &obj); |
61 | *pobject = nv_object(obj); |
62 | if (ret) |
63 | return ret; |
64 | |
65 | nv_wo32(obj, 0x00, nv_mclass(obj)); |
66 | nv_wo32(obj, 0x04, 0x00000000); |
67 | nv_wo32(obj, 0x08, 0x00000000); |
68 | nv_wo32(obj, 0x0c, 0x00000000); |
69 | return 0; |
70 | } |
71 | |
72 | static struct nouveau_ofuncs |
73 | nv84_crypt_ofuncs = { |
74 | .ctor = nv84_crypt_object_ctor, |
75 | .dtor = _nouveau_gpuobj_dtor, |
76 | .init = _nouveau_gpuobj_init, |
77 | .fini = _nouveau_gpuobj_fini, |
78 | .rd32 = _nouveau_gpuobj_rd32, |
79 | .wr32 = _nouveau_gpuobj_wr32, |
80 | }; |
81 | |
82 | static struct nouveau_oclass |
83 | nv84_crypt_sclass[] = { |
84 | { 0x74c1, &nv84_crypt_ofuncs }, |
85 | {} |
86 | }; |
87 | |
88 | /******************************************************************************* |
89 | * PCRYPT context |
90 | ******************************************************************************/ |
91 | |
92 | static struct nouveau_oclass |
93 | nv84_crypt_cclass = { |
94 | .handle = NV_ENGCTX(CRYPT, 0x84), |
95 | .ofuncs = &(struct nouveau_ofuncs) { |
96 | .ctor = _nouveau_engctx_ctor, |
97 | .dtor = _nouveau_engctx_dtor, |
98 | .init = _nouveau_engctx_init, |
99 | .fini = _nouveau_engctx_fini, |
100 | .rd32 = _nouveau_engctx_rd32, |
101 | .wr32 = _nouveau_engctx_wr32, |
102 | }, |
103 | }; |
104 | |
105 | /******************************************************************************* |
106 | * PCRYPT engine/subdev functions |
107 | ******************************************************************************/ |
108 | |
109 | static const struct nouveau_bitfield nv84_crypt_intr_mask[] = { |
110 | { 0x00000001, "INVALID_STATE" }, |
111 | { 0x00000002, "ILLEGAL_MTHD" }, |
112 | { 0x00000004, "ILLEGAL_CLASS" }, |
113 | { 0x00000080, "QUERY" }, |
114 | { 0x00000100, "FAULT" }, |
115 | {} |
116 | }; |
117 | |
118 | static void |
119 | nv84_crypt_intr(struct nouveau_subdev *subdev) |
120 | { |
121 | struct nouveau_fifo *pfifo = nouveau_fifo(subdev); |
122 | struct nouveau_engine *engine = nv_engine(subdev); |
123 | struct nouveau_object *engctx; |
124 | struct nv84_crypt_priv *priv = (void *)subdev; |
125 | u32 stat = nv_rd32(priv, 0x102130); |
126 | u32 mthd = nv_rd32(priv, 0x102190); |
127 | u32 data = nv_rd32(priv, 0x102194); |
128 | u32 inst = nv_rd32(priv, 0x102188) & 0x7fffffff; |
129 | int chid; |
130 | |
131 | engctx = nouveau_engctx_get(engine, inst); |
132 | chid = pfifo->chid(pfifo, engctx); |
133 | |
134 | if (stat) { |
135 | nv_error(priv, "%s" , "" ); |
136 | nouveau_bitfield_print(nv84_crypt_intr_mask, stat); |
137 | pr_cont(" ch %d [0x%010" PRIx64" %s] mthd 0x%04x data 0x%08x\n" , |
138 | chid, (u64)inst << 12, nouveau_client_name(engctx), |
139 | mthd, data); |
140 | } |
141 | |
142 | nv_wr32(priv, 0x102130, stat); |
143 | nv_wr32(priv, 0x10200c, 0x10); |
144 | |
145 | nouveau_engctx_put(engctx); |
146 | } |
147 | |
148 | static int |
149 | nv84_crypt_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
150 | struct nouveau_oclass *oclass, void *data, u32 size, |
151 | struct nouveau_object **pobject) |
152 | { |
153 | struct nv84_crypt_priv *priv; |
154 | int ret; |
155 | |
156 | ret = nouveau_engine_create(parent, engine, oclass, true, |
157 | "PCRYPT" , "crypt" , &priv); |
158 | *pobject = nv_object(priv); |
159 | if (ret) |
160 | return ret; |
161 | |
162 | nv_subdev(priv)->unit = 0x00004000; |
163 | nv_subdev(priv)->intr = nv84_crypt_intr; |
164 | nv_engine(priv)->cclass = &nv84_crypt_cclass; |
165 | nv_engine(priv)->sclass = nv84_crypt_sclass; |
166 | return 0; |
167 | } |
168 | |
169 | static int |
170 | nv84_crypt_init(struct nouveau_object *object) |
171 | { |
172 | struct nv84_crypt_priv *priv = (void *)object; |
173 | int ret; |
174 | |
175 | ret = nouveau_engine_init(&priv->base); |
176 | if (ret) |
177 | return ret; |
178 | |
179 | nv_wr32(priv, 0x102130, 0xffffffff); |
180 | nv_wr32(priv, 0x102140, 0xffffffbf); |
181 | nv_wr32(priv, 0x10200c, 0x00000010); |
182 | return 0; |
183 | } |
184 | |
185 | struct nouveau_oclass |
186 | nv84_crypt_oclass = { |
187 | .handle = NV_ENGINE(CRYPT, 0x84), |
188 | .ofuncs = &(struct nouveau_ofuncs) { |
189 | .ctor = nv84_crypt_ctor, |
190 | .dtor = _nouveau_engine_dtor, |
191 | .init = nv84_crypt_init, |
192 | .fini = _nouveau_engine_fini, |
193 | }, |
194 | }; |
195 | |