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
45struct nv98_crypt_priv {
46 struct nouveau_falcon base;
47};
48
49/*******************************************************************************
50 * Crypt object classes
51 ******************************************************************************/
52
53static struct nouveau_oclass
54nv98_crypt_sclass[] = {
55 { 0x88b4, &nouveau_object_ofuncs },
56 {},
57};
58
59/*******************************************************************************
60 * PCRYPT context
61 ******************************************************************************/
62
63static struct nouveau_oclass
64nv98_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
80static 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
88static void
89nv98_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
126static int
127nv98_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
151struct nouveau_oclass
152nv98_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