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1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */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 context40 ******************************************************************************/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_chan *fifo;47 struct list_head head;48 u32 inst;49};50 51static int52nv44_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 int68nv44_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_func96nv44_mpeg_chan = {97 .dtor = nv44_mpeg_chan_dtor,98 .fini = nv44_mpeg_chan_fini,99 .bind = nv44_mpeg_chan_bind,100};101 102static int103nv44_mpeg_chan_new(struct nvkm_chan *fifoch, const struct nvkm_oclass *oclass,104 struct nvkm_object **pobject)105{106 struct nv44_mpeg *mpeg = nv44_mpeg(oclass->engine);107 struct nv44_mpeg_chan *chan;108 unsigned long flags;109 110 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))111 return -ENOMEM;112 nvkm_object_ctor(&nv44_mpeg_chan, oclass, &chan->object);113 chan->mpeg = mpeg;114 chan->fifo = fifoch;115 *pobject = &chan->object;116 117 spin_lock_irqsave(&mpeg->engine.lock, flags);118 list_add(&chan->head, &mpeg->chan);119 spin_unlock_irqrestore(&mpeg->engine.lock, flags);120 return 0;121}122 123/*******************************************************************************124 * PMPEG engine/subdev functions125 ******************************************************************************/126 127static bool128nv44_mpeg_mthd(struct nvkm_device *device, u32 mthd, u32 data)129{130 switch (mthd) {131 case 0x190:132 case 0x1a0:133 case 0x1b0:134 return nv40_mpeg_mthd_dma(device, mthd, data);135 default:136 break;137 }138 return false;139}140 141static void142nv44_mpeg_intr(struct nvkm_engine *engine)143{144 struct nv44_mpeg *mpeg = nv44_mpeg(engine);145 struct nvkm_subdev *subdev = &mpeg->engine.subdev;146 struct nvkm_device *device = subdev->device;147 struct nv44_mpeg_chan *temp, *chan = NULL;148 unsigned long flags;149 u32 inst = nvkm_rd32(device, 0x00b318) & 0x000fffff;150 u32 stat = nvkm_rd32(device, 0x00b100);151 u32 type = nvkm_rd32(device, 0x00b230);152 u32 mthd = nvkm_rd32(device, 0x00b234);153 u32 data = nvkm_rd32(device, 0x00b238);154 u32 show = stat;155 156 spin_lock_irqsave(&mpeg->engine.lock, flags);157 list_for_each_entry(temp, &mpeg->chan, head) {158 if (temp->inst >> 4 == inst) {159 chan = temp;160 list_del(&chan->head);161 list_add(&chan->head, &mpeg->chan);162 break;163 }164 }165 166 if (stat & 0x01000000) {167 /* happens on initial binding of the object */168 if (type == 0x00000020 && mthd == 0x0000) {169 nvkm_mask(device, 0x00b308, 0x00000000, 0x00000000);170 show &= ~0x01000000;171 }172 173 if (type == 0x00000010) {174 if (nv44_mpeg_mthd(subdev->device, mthd, data))175 show &= ~0x01000000;176 }177 }178 179 nvkm_wr32(device, 0x00b100, stat);180 nvkm_wr32(device, 0x00b230, 0x00000001);181 182 if (show) {183 nvkm_error(subdev, "ch %d [%08x %s] %08x %08x %08x %08x\n",184 chan ? chan->fifo->id : -1, inst << 4,185 chan ? chan->fifo->name : "unknown",186 stat, type, mthd, data);187 }188 189 spin_unlock_irqrestore(&mpeg->engine.lock, flags);190}191 192static const struct nvkm_engine_func193nv44_mpeg = {194 .init = nv31_mpeg_init,195 .intr = nv44_mpeg_intr,196 .tile = nv31_mpeg_tile,197 .fifo.cclass = nv44_mpeg_chan_new,198 .sclass = {199 { -1, -1, NV31_MPEG, &nv31_mpeg_object },200 {}201 }202};203 204int205nv44_mpeg_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,206 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, type, inst, true, &mpeg->engine);216}217