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
42struct nv84_crypt_priv {
43 struct nouveau_engine base;
44};
45
46/*******************************************************************************
47 * Crypt object classes
48 ******************************************************************************/
49
50static int
51nv84_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
72static struct nouveau_ofuncs
73nv84_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
82static struct nouveau_oclass
83nv84_crypt_sclass[] = {
84 { 0x74c1, &nv84_crypt_ofuncs },
85 {}
86};
87
88/*******************************************************************************
89 * PCRYPT context
90 ******************************************************************************/
91
92static struct nouveau_oclass
93nv84_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
109static 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
118static void
119nv84_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
148static int
149nv84_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
169static int
170nv84_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
185struct nouveau_oclass
186nv84_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