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/cipher.h>
25 #include <engine/fifo.h>
26
27 #include <core/client.h>
28 #include <core/enum.h>
29 #include <core/gpuobj.h>
30
31 #include <nvif/class.h>
32
33 static int
g84_cipher_oclass_bind(struct nvkm_object * object,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)34 g84_cipher_oclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
35 int align, struct nvkm_gpuobj **pgpuobj)
36 {
37 int ret = nvkm_gpuobj_new(object->engine->subdev.device, 16,
38 align, false, parent, pgpuobj);
39 if (ret == 0) {
40 nvkm_kmap(*pgpuobj);
41 nvkm_wo32(*pgpuobj, 0x00, object->oclass);
42 nvkm_wo32(*pgpuobj, 0x04, 0x00000000);
43 nvkm_wo32(*pgpuobj, 0x08, 0x00000000);
44 nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);
45 nvkm_done(*pgpuobj);
46 }
47 return ret;
48 }
49
50 static const struct nvkm_object_func
51 g84_cipher_oclass_func = {
52 .bind = g84_cipher_oclass_bind,
53 };
54
55 static int
g84_cipher_cclass_bind(struct nvkm_object * object,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)56 g84_cipher_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
57 int align, struct nvkm_gpuobj **pgpuobj)
58 {
59 return nvkm_gpuobj_new(object->engine->subdev.device, 256,
60 align, true, parent, pgpuobj);
61
62 }
63
64 static const struct nvkm_object_func
65 g84_cipher_cclass = {
66 .bind = g84_cipher_cclass_bind,
67 };
68
69 static const struct nvkm_bitfield
70 g84_cipher_intr_mask[] = {
71 { 0x00000001, "INVALID_STATE" },
72 { 0x00000002, "ILLEGAL_MTHD" },
73 { 0x00000004, "ILLEGAL_CLASS" },
74 { 0x00000080, "QUERY" },
75 { 0x00000100, "FAULT" },
76 {}
77 };
78
79 static void
g84_cipher_intr(struct nvkm_engine * cipher)80 g84_cipher_intr(struct nvkm_engine *cipher)
81 {
82 struct nvkm_subdev *subdev = &cipher->subdev;
83 struct nvkm_device *device = subdev->device;
84 struct nvkm_fifo *fifo = device->fifo;
85 struct nvkm_fifo_chan *chan;
86 u32 stat = nvkm_rd32(device, 0x102130);
87 u32 mthd = nvkm_rd32(device, 0x102190);
88 u32 data = nvkm_rd32(device, 0x102194);
89 u32 inst = nvkm_rd32(device, 0x102188) & 0x7fffffff;
90 unsigned long flags;
91 char msg[128];
92
93 chan = nvkm_fifo_chan_inst(fifo, (u64)inst << 12, &flags);
94 if (stat) {
95 nvkm_snprintbf(msg, sizeof(msg), g84_cipher_intr_mask, stat);
96 nvkm_error(subdev, "%08x [%s] ch %d [%010llx %s] "
97 "mthd %04x data %08x\n", stat, msg,
98 chan ? chan->chid : -1, (u64)inst << 12,
99 chan ? chan->object.client->name : "unknown",
100 mthd, data);
101 }
102 nvkm_fifo_chan_put(fifo, flags, &chan);
103
104 nvkm_wr32(device, 0x102130, stat);
105 nvkm_wr32(device, 0x10200c, 0x10);
106 }
107
108 static int
g84_cipher_init(struct nvkm_engine * cipher)109 g84_cipher_init(struct nvkm_engine *cipher)
110 {
111 struct nvkm_device *device = cipher->subdev.device;
112 nvkm_wr32(device, 0x102130, 0xffffffff);
113 nvkm_wr32(device, 0x102140, 0xffffffbf);
114 nvkm_wr32(device, 0x10200c, 0x00000010);
115 return 0;
116 }
117
118 static const struct nvkm_engine_func
119 g84_cipher = {
120 .init = g84_cipher_init,
121 .intr = g84_cipher_intr,
122 .cclass = &g84_cipher_cclass,
123 .sclass = {
124 { -1, -1, NV74_CIPHER, &g84_cipher_oclass_func },
125 {}
126 }
127 };
128
129 int
g84_cipher_new(struct nvkm_device * device,int index,struct nvkm_engine ** pengine)130 g84_cipher_new(struct nvkm_device *device, int index,
131 struct nvkm_engine **pengine)
132 {
133 return nvkm_engine_new_(&g84_cipher, device, index, true, pengine);
134 }
135