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 "priv.h"
25
26#include <core/gpuobj.h>
27#include <subdev/timer.h>
28
29#include <nvif/class.h>
30
31/*******************************************************************************
32 * PMPEG context
33 ******************************************************************************/
34
35static int
36nv50_mpeg_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
37		      int align, struct nvkm_gpuobj **pgpuobj)
38{
39	int ret = nvkm_gpuobj_new(object->engine->subdev.device, 128 * 4,
40				  align, true, parent, pgpuobj);
41	if (ret == 0) {
42		nvkm_kmap(*pgpuobj);
43		nvkm_wo32(*pgpuobj, 0x70, 0x00801ec1);
44		nvkm_wo32(*pgpuobj, 0x7c, 0x0000037c);
45		nvkm_done(*pgpuobj);
46	}
47	return ret;
48}
49
50const struct nvkm_object_func
51nv50_mpeg_cclass = {
52	.bind = nv50_mpeg_cclass_bind,
53};
54
55/*******************************************************************************
56 * PMPEG engine/subdev functions
57 ******************************************************************************/
58
59void
60nv50_mpeg_intr(struct nvkm_engine *mpeg)
61{
62	struct nvkm_subdev *subdev = &mpeg->subdev;
63	struct nvkm_device *device = subdev->device;
64	u32 stat = nvkm_rd32(device, 0x00b100);
65	u32 type = nvkm_rd32(device, 0x00b230);
66	u32 mthd = nvkm_rd32(device, 0x00b234);
67	u32 data = nvkm_rd32(device, 0x00b238);
68	u32 show = stat;
69
70	if (stat & 0x01000000) {
71		/* happens on initial binding of the object */
72		if (type == 0x00000020 && mthd == 0x0000) {
73			nvkm_wr32(device, 0x00b308, 0x00000100);
74			show &= ~0x01000000;
75		}
76	}
77
78	if (show) {
79		nvkm_info(subdev, "%08x %08x %08x %08x\n",
80			  stat, type, mthd, data);
81	}
82
83	nvkm_wr32(device, 0x00b100, stat);
84	nvkm_wr32(device, 0x00b230, 0x00000001);
85}
86
87int
88nv50_mpeg_init(struct nvkm_engine *mpeg)
89{
90	struct nvkm_subdev *subdev = &mpeg->subdev;
91	struct nvkm_device *device = subdev->device;
92
93	nvkm_wr32(device, 0x00b32c, 0x00000000);
94	nvkm_wr32(device, 0x00b314, 0x00000100);
95	nvkm_wr32(device, 0x00b0e0, 0x0000001a);
96
97	nvkm_wr32(device, 0x00b220, 0x00000044);
98	nvkm_wr32(device, 0x00b300, 0x00801ec1);
99	nvkm_wr32(device, 0x00b390, 0x00000000);
100	nvkm_wr32(device, 0x00b394, 0x00000000);
101	nvkm_wr32(device, 0x00b398, 0x00000000);
102	nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
103
104	nvkm_wr32(device, 0x00b100, 0xffffffff);
105	nvkm_wr32(device, 0x00b140, 0xffffffff);
106
107	if (nvkm_msec(device, 2000,
108		if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))
109			break;
110	) < 0) {
111		nvkm_error(subdev, "timeout %08x\n",
112			   nvkm_rd32(device, 0x00b200));
113		return -EBUSY;
114	}
115
116	return 0;
117}
118
119static const struct nvkm_engine_func
120nv50_mpeg = {
121	.init = nv50_mpeg_init,
122	.intr = nv50_mpeg_intr,
123	.cclass = &nv50_mpeg_cclass,
124	.sclass = {
125		{ -1, -1, NV31_MPEG, &nv31_mpeg_object },
126		{}
127	}
128};
129
130int
131nv50_mpeg_new(struct nvkm_device *device, int index, struct nvkm_engine **pmpeg)
132{
133	return nvkm_engine_new_(&nv50_mpeg, device, index, 0x00400002,
134				true, pmpeg);
135}
136