source: src/linux/universal/linux-4.9/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c @ 31885

Last change on this file since 31885 was 31885, checked in by brainslayer, 2 months ago

update

File size: 6.0 KB
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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#define nv44_mpeg(p) container_of((p), struct nv44_mpeg, engine)
25#include "priv.h"
26
27#include <core/client.h>
28#include <core/gpuobj.h>
29#include <engine/fifo.h>
30
31#include <nvif/class.h>
32
33struct nv44_mpeg {
34        struct nvkm_engine engine;
35        struct list_head chan;
36};
37
38/*******************************************************************************
39 * PMPEG context
40 ******************************************************************************/
41#define nv44_mpeg_chan(p) container_of((p), struct nv44_mpeg_chan, object)
42
43struct nv44_mpeg_chan {
44        struct nvkm_object object;
45        struct nv44_mpeg *mpeg;
46        struct nvkm_fifo_chan *fifo;
47        struct list_head head;
48        u32 inst;
49};
50
51static int
52nv44_mpeg_chan_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
53                    int align, struct nvkm_gpuobj **pgpuobj)
54{
55        struct nv44_mpeg_chan *chan = nv44_mpeg_chan(object);
56        int ret = nvkm_gpuobj_new(chan->object.engine->subdev.device, 264 * 4,
57                                  align, true, parent, pgpuobj);
58        if (ret == 0) {
59                chan->inst = (*pgpuobj)->addr;
60                nvkm_kmap(*pgpuobj);
61                nvkm_wo32(*pgpuobj, 0x78, 0x02001ec1);
62                nvkm_done(*pgpuobj);
63        }
64        return ret;
65}
66
67static int
68nv44_mpeg_chan_fini(struct nvkm_object *object, bool suspend)
69{
70
71        struct nv44_mpeg_chan *chan = nv44_mpeg_chan(object);
72        struct nv44_mpeg *mpeg = chan->mpeg;
73        struct nvkm_device *device = mpeg->engine.subdev.device;
74        u32 inst = 0x80000000 | (chan->inst >> 4);
75
76        nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000000);
77        if (nvkm_rd32(device, 0x00b318) == inst)
78                nvkm_mask(device, 0x00b318, 0x80000000, 0x00000000);
79        nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
80        return 0;
81}
82
83static void *
84nv44_mpeg_chan_dtor(struct nvkm_object *object)
85{
86        struct nv44_mpeg_chan *chan = nv44_mpeg_chan(object);
87        struct nv44_mpeg *mpeg = chan->mpeg;
88        unsigned long flags;
89        spin_lock_irqsave(&mpeg->engine.lock, flags);
90        list_del(&chan->head);
91        spin_unlock_irqrestore(&mpeg->engine.lock, flags);
92        return chan;
93}
94
95static const struct nvkm_object_func
96nv44_mpeg_chan = {
97        .dtor = nv44_mpeg_chan_dtor,
98        .fini = nv44_mpeg_chan_fini,
99        .bind = nv44_mpeg_chan_bind,
100};
101
102static int
103nv44_mpeg_chan_new(struct nvkm_fifo_chan *fifoch,
104                   const struct nvkm_oclass *oclass,
105                   struct nvkm_object **pobject)
106{
107        struct nv44_mpeg *mpeg = nv44_mpeg(oclass->engine);
108        struct nv44_mpeg_chan *chan;
109        unsigned long flags;
110
111        if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
112                return -ENOMEM;
113        nvkm_object_ctor(&nv44_mpeg_chan, oclass, &chan->object);
114        chan->mpeg = mpeg;
115        chan->fifo = fifoch;
116        *pobject = &chan->object;
117
118        spin_lock_irqsave(&mpeg->engine.lock, flags);
119        list_add(&chan->head, &mpeg->chan);
120        spin_unlock_irqrestore(&mpeg->engine.lock, flags);
121        return 0;
122}
123
124/*******************************************************************************
125 * PMPEG engine/subdev functions
126 ******************************************************************************/
127
128static bool
129nv44_mpeg_mthd(struct nvkm_device *device, u32 mthd, u32 data)
130{
131        switch (mthd) {
132        case 0x190:
133        case 0x1a0:
134        case 0x1b0:
135                return nv40_mpeg_mthd_dma(device, mthd, data);
136        default:
137                break;
138        }
139        return false;
140}
141
142static void
143nv44_mpeg_intr(struct nvkm_engine *engine)
144{
145        struct nv44_mpeg *mpeg = nv44_mpeg(engine);
146        struct nvkm_subdev *subdev = &mpeg->engine.subdev;
147        struct nvkm_device *device = subdev->device;
148        struct nv44_mpeg_chan *temp, *chan = NULL;
149        unsigned long flags;
150        u32 inst = nvkm_rd32(device, 0x00b318) & 0x000fffff;
151        u32 stat = nvkm_rd32(device, 0x00b100);
152        u32 type = nvkm_rd32(device, 0x00b230);
153        u32 mthd = nvkm_rd32(device, 0x00b234);
154        u32 data = nvkm_rd32(device, 0x00b238);
155        u32 show = stat;
156
157        spin_lock_irqsave(&mpeg->engine.lock, flags);
158        list_for_each_entry(temp, &mpeg->chan, head) {
159                if (temp->inst >> 4 == inst) {
160                        chan = temp;
161                        list_del(&chan->head);
162                        list_add(&chan->head, &mpeg->chan);
163                        break;
164                }
165        }
166
167        if (stat & 0x01000000) {
168                /* happens on initial binding of the object */
169                if (type == 0x00000020 && mthd == 0x0000) {
170                        nvkm_mask(device, 0x00b308, 0x00000000, 0x00000000);
171                        show &= ~0x01000000;
172                }
173
174                if (type == 0x00000010) {
175                        if (nv44_mpeg_mthd(subdev->device, mthd, data))
176                                show &= ~0x01000000;
177                }
178        }
179
180        nvkm_wr32(device, 0x00b100, stat);
181        nvkm_wr32(device, 0x00b230, 0x00000001);
182
183        if (show) {
184                nvkm_error(subdev, "ch %d [%08x %s] %08x %08x %08x %08x\n",
185                           chan ? chan->fifo->chid : -1, inst << 4,
186                           chan ? chan->object.client->name : "unknown",
187                           stat, type, mthd, data);
188        }
189
190        spin_unlock_irqrestore(&mpeg->engine.lock, flags);
191}
192
193static const struct nvkm_engine_func
194nv44_mpeg = {
195        .init = nv31_mpeg_init,
196        .intr = nv44_mpeg_intr,
197        .tile = nv31_mpeg_tile,
198        .fifo.cclass = nv44_mpeg_chan_new,
199        .sclass = {
200                { -1, -1, NV31_MPEG, &nv31_mpeg_object },
201                {}
202        }
203};
204
205int
206nv44_mpeg_new(struct nvkm_device *device, int index, struct nvkm_engine **pmpeg)
207{
208        struct nv44_mpeg *mpeg;
209
210        if (!(mpeg = kzalloc(sizeof(*mpeg), GFP_KERNEL)))
211                return -ENOMEM;
212        INIT_LIST_HEAD(&mpeg->chan);
213        *pmpeg = &mpeg->engine;
214
215        return nvkm_engine_ctor(&nv44_mpeg, device, index, true, &mpeg->engine);
216}
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