1 /* $NetBSD: nouveau_nvkm_engine_mpeg_nv50.c,v 1.3 2021/12/18 23:45:36 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 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_mpeg_nv50.c,v 1.3 2021/12/18 23:45:36 riastradh Exp $");
28
29 #include "priv.h"
30
31 #include <core/gpuobj.h>
32 #include <core/object.h>
33 #include <subdev/timer.h>
34
35 #include <nvif/class.h>
36
37 /*******************************************************************************
38 * PMPEG context
39 ******************************************************************************/
40
41 static int
nv50_mpeg_cclass_bind(struct nvkm_object * object,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)42 nv50_mpeg_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
43 int align, struct nvkm_gpuobj **pgpuobj)
44 {
45 int ret = nvkm_gpuobj_new(object->engine->subdev.device, 128 * 4,
46 align, true, parent, pgpuobj);
47 if (ret == 0) {
48 nvkm_kmap(*pgpuobj);
49 nvkm_wo32(*pgpuobj, 0x70, 0x00801ec1);
50 nvkm_wo32(*pgpuobj, 0x7c, 0x0000037c);
51 nvkm_done(*pgpuobj);
52 }
53 return ret;
54 }
55
56 const struct nvkm_object_func
57 nv50_mpeg_cclass = {
58 .bind = nv50_mpeg_cclass_bind,
59 };
60
61 /*******************************************************************************
62 * PMPEG engine/subdev functions
63 ******************************************************************************/
64
65 void
nv50_mpeg_intr(struct nvkm_engine * mpeg)66 nv50_mpeg_intr(struct nvkm_engine *mpeg)
67 {
68 struct nvkm_subdev *subdev = &mpeg->subdev;
69 struct nvkm_device *device = subdev->device;
70 u32 stat = nvkm_rd32(device, 0x00b100);
71 u32 type = nvkm_rd32(device, 0x00b230);
72 u32 mthd = nvkm_rd32(device, 0x00b234);
73 u32 data = nvkm_rd32(device, 0x00b238);
74 u32 show = stat;
75
76 if (stat & 0x01000000) {
77 /* happens on initial binding of the object */
78 if (type == 0x00000020 && mthd == 0x0000) {
79 nvkm_wr32(device, 0x00b308, 0x00000100);
80 show &= ~0x01000000;
81 }
82 }
83
84 if (show) {
85 nvkm_info(subdev, "%08x %08x %08x %08x\n",
86 stat, type, mthd, data);
87 }
88
89 nvkm_wr32(device, 0x00b100, stat);
90 nvkm_wr32(device, 0x00b230, 0x00000001);
91 }
92
93 int
nv50_mpeg_init(struct nvkm_engine * mpeg)94 nv50_mpeg_init(struct nvkm_engine *mpeg)
95 {
96 struct nvkm_subdev *subdev = &mpeg->subdev;
97 struct nvkm_device *device = subdev->device;
98
99 nvkm_wr32(device, 0x00b32c, 0x00000000);
100 nvkm_wr32(device, 0x00b314, 0x00000100);
101 nvkm_wr32(device, 0x00b0e0, 0x0000001a);
102
103 nvkm_wr32(device, 0x00b220, 0x00000044);
104 nvkm_wr32(device, 0x00b300, 0x00801ec1);
105 nvkm_wr32(device, 0x00b390, 0x00000000);
106 nvkm_wr32(device, 0x00b394, 0x00000000);
107 nvkm_wr32(device, 0x00b398, 0x00000000);
108 nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
109
110 nvkm_wr32(device, 0x00b100, 0xffffffff);
111 nvkm_wr32(device, 0x00b140, 0xffffffff);
112
113 if (nvkm_msec(device, 2000,
114 if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))
115 break;
116 ) < 0) {
117 nvkm_error(subdev, "timeout %08x\n",
118 nvkm_rd32(device, 0x00b200));
119 return -EBUSY;
120 }
121
122 return 0;
123 }
124
125 static const struct nvkm_engine_func
126 nv50_mpeg = {
127 .init = nv50_mpeg_init,
128 .intr = nv50_mpeg_intr,
129 .cclass = &nv50_mpeg_cclass,
130 .sclass = {
131 { -1, -1, NV31_MPEG, &nv31_mpeg_object },
132 {}
133 }
134 };
135
136 int
nv50_mpeg_new(struct nvkm_device * device,int index,struct nvkm_engine ** pmpeg)137 nv50_mpeg_new(struct nvkm_device *device, int index, struct nvkm_engine **pmpeg)
138 {
139 return nvkm_engine_new_(&nv50_mpeg, device, index, true, pmpeg);
140 }
141