1 /*
2  * Copyright 2012 Red Hat Inc.
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 #include <engine/sec.h>
25 #include <engine/falcon.h>
26 #include <engine/fifo.h>
27 #include "fuc/g98.fuc0s.h"
28 
29 #include <core/client.h>
30 #include <core/enum.h>
31 
32 /*******************************************************************************
33  * Crypt object classes
34  ******************************************************************************/
35 
36 static struct nvkm_oclass
37 g98_sec_sclass[] = {
38 	{ 0x88b4, &nvkm_object_ofuncs },
39 	{},
40 };
41 
42 /*******************************************************************************
43  * PSEC context
44  ******************************************************************************/
45 
46 static struct nvkm_oclass
47 g98_sec_cclass = {
48 	.handle = NV_ENGCTX(SEC, 0x98),
49 	.ofuncs = &(struct nvkm_ofuncs) {
50 		.ctor = _nvkm_falcon_context_ctor,
51 		.dtor = _nvkm_falcon_context_dtor,
52 		.init = _nvkm_falcon_context_init,
53 		.fini = _nvkm_falcon_context_fini,
54 		.rd32 = _nvkm_falcon_context_rd32,
55 		.wr32 = _nvkm_falcon_context_wr32,
56 	},
57 };
58 
59 /*******************************************************************************
60  * PSEC engine/subdev functions
61  ******************************************************************************/
62 
63 static const struct nvkm_enum g98_sec_isr_error_name[] = {
64 	{ 0x0000, "ILLEGAL_MTHD" },
65 	{ 0x0001, "INVALID_BITFIELD" },
66 	{ 0x0002, "INVALID_ENUM" },
67 	{ 0x0003, "QUERY" },
68 	{}
69 };
70 
71 static void
72 g98_sec_intr(struct nvkm_falcon *sec, struct nvkm_fifo_chan *chan)
73 {
74 	struct nvkm_subdev *subdev = &sec->engine.subdev;
75 	struct nvkm_device *device = subdev->device;
76 	u32 ssta = nvkm_rd32(device, 0x087040) & 0x0000ffff;
77 	u32 addr = nvkm_rd32(device, 0x087040) >> 16;
78 	u32 mthd = (addr & 0x07ff) << 2;
79 	u32 subc = (addr & 0x3800) >> 11;
80 	u32 data = nvkm_rd32(device, 0x087044);
81 	const struct nvkm_enum *en =
82 		nvkm_enum_find(g98_sec_isr_error_name, ssta);
83 
84 	nvkm_error(subdev, "DISPATCH_ERROR %04x [%s] ch %d [%010llx %s] "
85 			   "subc %d mthd %04x data %08x\n", ssta,
86 		   en ? en->name : "UNKNOWN", chan ? chan->chid : -1,
87 		   chan ? chan->inst : 0, nvkm_client_name(chan),
88 		   subc, mthd, data);
89 }
90 
91 static const struct nvkm_falcon_func
92 g98_sec_func = {
93 	.intr = g98_sec_intr,
94 };
95 
96 static int
97 g98_sec_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
98 	     struct nvkm_oclass *oclass, void *data, u32 size,
99 	     struct nvkm_object **pobject)
100 {
101 	struct nvkm_falcon *sec;
102 	int ret;
103 
104 	ret = nvkm_falcon_create(&g98_sec_func, parent, engine, oclass,
105 				 0x087000, true, "PSEC", "sec", &sec);
106 	*pobject = nv_object(sec);
107 	if (ret)
108 		return ret;
109 
110 	nv_subdev(sec)->unit = 0x00004000;
111 	nv_engine(sec)->cclass = &g98_sec_cclass;
112 	nv_engine(sec)->sclass = g98_sec_sclass;
113 	nv_falcon(sec)->code.data = g98_sec_code;
114 	nv_falcon(sec)->code.size = sizeof(g98_sec_code);
115 	nv_falcon(sec)->data.data = g98_sec_data;
116 	nv_falcon(sec)->data.size = sizeof(g98_sec_data);
117 	return 0;
118 }
119 
120 struct nvkm_oclass
121 g98_sec_oclass = {
122 	.handle = NV_ENGINE(SEC, 0x98),
123 	.ofuncs = &(struct nvkm_ofuncs) {
124 		.ctor = g98_sec_ctor,
125 		.dtor = _nvkm_falcon_dtor,
126 		.init = _nvkm_falcon_init,
127 		.fini = _nvkm_falcon_fini,
128 	},
129 };
130