kernel/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c

   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 "changf100.h"
  25
  26 #include <core/client.h>
  27 #include <core/gpuobj.h>
  28 #include <subdev/fb.h>
  29 #include <subdev/timer.h>
  30
  31 #include <nvif/class.h>
  32 #include <nvif/unpack.h>
  33
  34 static u32
  35 gf100_fifo_gpfifo_engine_addr(struct nvkm_engine *engine)
  36 {
  37         switch (engine->subdev.index) {
  38         case NVKM_ENGINE_SW    : return 0;
  39         case NVKM_ENGINE_GR    : return 0x0210;
  40         case NVKM_ENGINE_CE0   : return 0x0230;
  41         case NVKM_ENGINE_CE1   : return 0x0240;
  42         case NVKM_ENGINE_MSPDEC: return 0x0250;
  43         case NVKM_ENGINE_MSPPP : return 0x0260;
  44         case NVKM_ENGINE_MSVLD : return 0x0270;
  45         default:
  46                 WARN_ON(1);
  47                 return 0;
  48         }
  49 }
  50
  51 static int
  52 gf100_fifo_gpfifo_engine_fini(struct nvkm_fifo_chan *base,
  53                               struct nvkm_engine *engine, bool suspend)
  54 {
  55         const u32 offset = gf100_fifo_gpfifo_engine_addr(engine);
  56         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
  57         struct nvkm_subdev *subdev = &chan->fifo->base.engine.subdev;
  58         struct nvkm_device *device = subdev->device;
  59         struct nvkm_gpuobj *inst = chan->base.inst;
  60         int ret = 0;
  61
  62         nvkm_wr32(device, 0x002634, chan->base.chid);
  63         if (nvkm_msec(device, 2000,
  64                 if (nvkm_rd32(device, 0x002634) == chan->base.chid)
  65                         break;
  66         ) < 0) {
  67                 nvkm_error(subdev, "channel %d [%s] kick timeout\n",
  68                            chan->base.chid, chan->base.object.client->name);
  69                 ret = -EBUSY;
  70                 if (suspend)
  71                         return ret;
  72         }
  73
  74         if (offset) {
  75                 nvkm_kmap(inst);
  76                 nvkm_wo32(inst, offset + 0x00, 0x00000000);
  77                 nvkm_wo32(inst, offset + 0x04, 0x00000000);
  78                 nvkm_done(inst);
  79         }
  80
  81         return ret;
  82 }
  83
  84 static int
  85 gf100_fifo_gpfifo_engine_init(struct nvkm_fifo_chan *base,
  86                               struct nvkm_engine *engine)
  87 {
  88         const u32 offset = gf100_fifo_gpfifo_engine_addr(engine);
  89         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
  90         struct nvkm_gpuobj *inst = chan->base.inst;
  91
  92         if (offset) {
  93                 u64 addr = chan->engn[engine->subdev.index].vma.offset;
  94                 nvkm_kmap(inst);
  95                 nvkm_wo32(inst, offset + 0x00, lower_32_bits(addr) | 4);
  96                 nvkm_wo32(inst, offset + 0x04, upper_32_bits(addr));
  97                 nvkm_done(inst);
  98         }
  99
 100         return 0;
 101 }
 102
 103 static void
 104 gf100_fifo_gpfifo_engine_dtor(struct nvkm_fifo_chan *base,
 105                               struct nvkm_engine *engine)
 106 {
 107         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 108         nvkm_gpuobj_unmap(&chan->engn[engine->subdev.index].vma);
 109         nvkm_gpuobj_del(&chan->engn[engine->subdev.index].inst);
 110 }
 111
 112 static int
 113 gf100_fifo_gpfifo_engine_ctor(struct nvkm_fifo_chan *base,
 114                               struct nvkm_engine *engine,
 115                               struct nvkm_object *object)
 116 {
 117         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 118         int engn = engine->subdev.index;
 119         int ret;
 120
 121         if (!gf100_fifo_gpfifo_engine_addr(engine))
 122                 return 0;
 123
 124         ret = nvkm_object_bind(object, NULL, 0, &chan->engn[engn].inst);
 125         if (ret)
 126                 return ret;
 127
 128         return nvkm_gpuobj_map(chan->engn[engn].inst, chan->vm,
 129                                NV_MEM_ACCESS_RW, &chan->engn[engn].vma);
 130 }
 131
 132 static void
 133 gf100_fifo_gpfifo_fini(struct nvkm_fifo_chan *base)
 134 {
 135         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 136         struct gf100_fifo *fifo = chan->fifo;
 137         struct nvkm_device *device = fifo->base.engine.subdev.device;
 138         u32 coff = chan->base.chid * 8;
 139
 140         if (!list_empty(&chan->head) && !chan->killed) {
 141                 list_del_init(&chan->head);
 142                 nvkm_mask(device, 0x003004 + coff, 0x00000001, 0x00000000);
 143                 gf100_fifo_runlist_update(fifo);
 144         }
 145
 146         gf100_fifo_intr_engine(fifo);
 147
 148         nvkm_wr32(device, 0x003000 + coff, 0x00000000);
 149 }
 150
 151 static void
 152 gf100_fifo_gpfifo_init(struct nvkm_fifo_chan *base)
 153 {
 154         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 155         struct gf100_fifo *fifo = chan->fifo;
 156         struct nvkm_device *device = fifo->base.engine.subdev.device;
 157         u32 addr = chan->base.inst->addr >> 12;
 158         u32 coff = chan->base.chid * 8;
 159
 160         nvkm_wr32(device, 0x003000 + coff, 0xc0000000 | addr);
 161
 162         if (list_empty(&chan->head) && !chan->killed) {
 163                 list_add_tail(&chan->head, &fifo->chan);
 164                 nvkm_wr32(device, 0x003004 + coff, 0x001f0001);
 165                 gf100_fifo_runlist_update(fifo);
 166         }
 167 }
 168
 169 static void *
 170 gf100_fifo_gpfifo_dtor(struct nvkm_fifo_chan *base)
 171 {
 172         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 173         nvkm_vm_ref(NULL, &chan->vm, chan->pgd);
 174         nvkm_gpuobj_del(&chan->pgd);
 175         return chan;
 176 }
 177
 178 static const struct nvkm_fifo_chan_func
 179 gf100_fifo_gpfifo_func = {
 180         .dtor = gf100_fifo_gpfifo_dtor,
 181         .init = gf100_fifo_gpfifo_init,
 182         .fini = gf100_fifo_gpfifo_fini,
 183         .ntfy = g84_fifo_chan_ntfy,
 184         .engine_ctor = gf100_fifo_gpfifo_engine_ctor,
 185         .engine_dtor = gf100_fifo_gpfifo_engine_dtor,
 186         .engine_init = gf100_fifo_gpfifo_engine_init,
 187         .engine_fini = gf100_fifo_gpfifo_engine_fini,
 188 };
 189
 190 static int
 191 gf100_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
 192                       void *data, u32 size, struct nvkm_object **pobject)
 193 {
 194         union {
 195                 struct fermi_channel_gpfifo_v0 v0;
 196         } *args = data;
 197         struct gf100_fifo *fifo = gf100_fifo(base);
 198         struct nvkm_device *device = fifo->base.engine.subdev.device;
 199         struct nvkm_object *parent = oclass->parent;
 200         struct gf100_fifo_chan *chan;
 201         u64 usermem, ioffset, ilength;
 202         int ret, i;
 203
 204         nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
 205         if (nvif_unpack(args->v0, 0, 0, false)) {
 206                 nvif_ioctl(parent, "create channel gpfifo vers %d vm %llx "
 207                                    "ioffset %016llx ilength %08x\n",
 208                            args->v0.version, args->v0.vm, args->v0.ioffset,
 209                            args->v0.ilength);
 210         } else
 211                 return ret;
 212
 213         /* allocate channel */
 214         if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 215                 return -ENOMEM;
 216         *pobject = &chan->base.object;
 217         chan->fifo = fifo;
 218         INIT_LIST_HEAD(&chan->head);
 219
 220         ret = nvkm_fifo_chan_ctor(&gf100_fifo_gpfifo_func, &fifo->base,
 221                                   0x1000, 0x1000, true, args->v0.vm, 0,
 222                                   (1ULL << NVKM_ENGINE_CE0) |
 223                                   (1ULL << NVKM_ENGINE_CE1) |
 224                                   (1ULL << NVKM_ENGINE_GR) |
 225                                   (1ULL << NVKM_ENGINE_MSPDEC) |
 226                                   (1ULL << NVKM_ENGINE_MSPPP) |
 227                                   (1ULL << NVKM_ENGINE_MSVLD) |
 228                                   (1ULL << NVKM_ENGINE_SW),
 229                                   1, fifo->user.bar.offset, 0x1000,
 230                                   oclass, &chan->base);
 231         if (ret)
 232                 return ret;
 233
 234         args->v0.chid = chan->base.chid;
 235
 236         /* page directory */
 237         ret = nvkm_gpuobj_new(device, 0x10000, 0x1000, false, NULL, &chan->pgd);
 238         if (ret)
 239                 return ret;
 240
 241         nvkm_kmap(chan->base.inst);
 242         nvkm_wo32(chan->base.inst, 0x0200, lower_32_bits(chan->pgd->addr));
 243         nvkm_wo32(chan->base.inst, 0x0204, upper_32_bits(chan->pgd->addr));
 244         nvkm_wo32(chan->base.inst, 0x0208, 0xffffffff);
 245         nvkm_wo32(chan->base.inst, 0x020c, 0x000000ff);
 246         nvkm_done(chan->base.inst);
 247
 248         ret = nvkm_vm_ref(chan->base.vm, &chan->vm, chan->pgd);
 249         if (ret)
 250                 return ret;
 251
 252         /* clear channel control registers */
 253
 254         usermem = chan->base.chid * 0x1000;
 255         ioffset = args->v0.ioffset;
 256         ilength = order_base_2(args->v0.ilength / 8);
 257
 258         nvkm_kmap(fifo->user.mem);
 259         for (i = 0; i < 0x1000; i += 4)
 260                 nvkm_wo32(fifo->user.mem, usermem + i, 0x00000000);
 261         nvkm_done(fifo->user.mem);
 262         usermem = nvkm_memory_addr(fifo->user.mem) + usermem;
 263
 264         /* RAMFC */
 265         nvkm_kmap(chan->base.inst);
 266         nvkm_wo32(chan->base.inst, 0x08, lower_32_bits(usermem));
 267         nvkm_wo32(chan->base.inst, 0x0c, upper_32_bits(usermem));
 268         nvkm_wo32(chan->base.inst, 0x10, 0x0000face);
 269         nvkm_wo32(chan->base.inst, 0x30, 0xfffff902);
 270         nvkm_wo32(chan->base.inst, 0x48, lower_32_bits(ioffset));
 271         nvkm_wo32(chan->base.inst, 0x4c, upper_32_bits(ioffset) |
 272                                          (ilength << 16));
 273         nvkm_wo32(chan->base.inst, 0x54, 0x00000002);
 274         nvkm_wo32(chan->base.inst, 0x84, 0x20400000);
 275         nvkm_wo32(chan->base.inst, 0x94, 0x30000001);
 276         nvkm_wo32(chan->base.inst, 0x9c, 0x00000100);
 277         nvkm_wo32(chan->base.inst, 0xa4, 0x1f1f1f1f);
 278         nvkm_wo32(chan->base.inst, 0xa8, 0x1f1f1f1f);
 279         nvkm_wo32(chan->base.inst, 0xac, 0x0000001f);
 280         nvkm_wo32(chan->base.inst, 0xb8, 0xf8000000);
 281         nvkm_wo32(chan->base.inst, 0xf8, 0x10003080); /* 0x002310 */
 282         nvkm_wo32(chan->base.inst, 0xfc, 0x10000010); /* 0x002350 */
 283         nvkm_done(chan->base.inst);
 284         return 0;
 285 }
 286
 287 const struct nvkm_fifo_chan_oclass
 288 gf100_fifo_gpfifo_oclass = {
 289         .base.oclass = FERMI_CHANNEL_GPFIFO,
 290         .base.minver = 0,
 291         .base.maxver = 0,
 292         .ctor = gf100_fifo_gpfifo_new,
 293 };