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/cl906f.h>
  33 #include <nvif/unpack.h>
  34
  35 int
  36 gf100_fifo_chan_ntfy(struct nvkm_fifo_chan *chan, u32 type,
  37                      struct nvkm_event **pevent)
  38 {
  39         switch (type) {
  40         case NV906F_V0_NTFY_NON_STALL_INTERRUPT:
  41                 *pevent = &chan->fifo->uevent;
  42                 return 0;
  43         case NV906F_V0_NTFY_KILLED:
  44                 *pevent = &chan->fifo->kevent;
  45                 return 0;
  46         default:
  47                 break;
  48         }
  49         return -EINVAL;
  50 }
  51
  52 static u32
  53 gf100_fifo_gpfifo_engine_addr(struct nvkm_engine *engine)
  54 {
  55         switch (engine->subdev.index) {
  56         case NVKM_ENGINE_SW    : return 0;
  57         case NVKM_ENGINE_GR    : return 0x0210;
  58         case NVKM_ENGINE_CE0   : return 0x0230;
  59         case NVKM_ENGINE_CE1   : return 0x0240;
  60         case NVKM_ENGINE_MSPDEC: return 0x0250;
  61         case NVKM_ENGINE_MSPPP : return 0x0260;
  62         case NVKM_ENGINE_MSVLD : return 0x0270;
  63         default:
  64                 WARN_ON(1);
  65                 return 0;
  66         }
  67 }
  68
  69 static int
  70 gf100_fifo_gpfifo_engine_fini(struct nvkm_fifo_chan *base,
  71                               struct nvkm_engine *engine, bool suspend)
  72 {
  73         const u32 offset = gf100_fifo_gpfifo_engine_addr(engine);
  74         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
  75         struct nvkm_subdev *subdev = &chan->fifo->base.engine.subdev;
  76         struct nvkm_device *device = subdev->device;
  77         struct nvkm_gpuobj *inst = chan->base.inst;
  78         int ret = 0;
  79
  80         mutex_lock(&subdev->mutex);
  81         nvkm_wr32(device, 0x002634, chan->base.chid);
  82         if (nvkm_msec(device, 2000,
  83                 if (nvkm_rd32(device, 0x002634) == chan->base.chid)
  84                         break;
  85         ) < 0) {
  86                 nvkm_error(subdev, "channel %d [%s] kick timeout\n",
  87                            chan->base.chid, chan->base.object.client->name);
  88                 ret = -ETIMEDOUT;
  89         }
  90         mutex_unlock(&subdev->mutex);
  91
  92         if (ret && suspend)
  93                 return ret;
  94
  95         if (offset) {
  96                 nvkm_kmap(inst);
  97                 nvkm_wo32(inst, offset + 0x00, 0x00000000);
  98                 nvkm_wo32(inst, offset + 0x04, 0x00000000);
  99                 nvkm_done(inst);
 100         }
 101
 102         return ret;
 103 }
 104
 105 static int
 106 gf100_fifo_gpfifo_engine_init(struct nvkm_fifo_chan *base,
 107                               struct nvkm_engine *engine)
 108 {
 109         const u32 offset = gf100_fifo_gpfifo_engine_addr(engine);
 110         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 111         struct nvkm_gpuobj *inst = chan->base.inst;
 112
 113         if (offset) {
 114                 u64 addr = chan->engn[engine->subdev.index].vma->addr;
 115                 nvkm_kmap(inst);
 116                 nvkm_wo32(inst, offset + 0x00, lower_32_bits(addr) | 4);
 117                 nvkm_wo32(inst, offset + 0x04, upper_32_bits(addr));
 118                 nvkm_done(inst);
 119         }
 120
 121         return 0;
 122 }
 123
 124 static void
 125 gf100_fifo_gpfifo_engine_dtor(struct nvkm_fifo_chan *base,
 126                               struct nvkm_engine *engine)
 127 {
 128         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 129         nvkm_vmm_put(chan->base.vmm, &chan->engn[engine->subdev.index].vma);
 130         nvkm_gpuobj_del(&chan->engn[engine->subdev.index].inst);
 131 }
 132
 133 static int
 134 gf100_fifo_gpfifo_engine_ctor(struct nvkm_fifo_chan *base,
 135                               struct nvkm_engine *engine,
 136                               struct nvkm_object *object)
 137 {
 138         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 139         int engn = engine->subdev.index;
 140         int ret;
 141
 142         if (!gf100_fifo_gpfifo_engine_addr(engine))
 143                 return 0;
 144
 145         ret = nvkm_object_bind(object, NULL, 0, &chan->engn[engn].inst);
 146         if (ret)
 147                 return ret;
 148
 149         ret = nvkm_vmm_get(chan->base.vmm, 12, chan->engn[engn].inst->size,
 150                            &chan->engn[engn].vma);
 151         if (ret)
 152                 return ret;
 153
 154         return nvkm_memory_map(chan->engn[engn].inst, 0, chan->base.vmm,
 155                                chan->engn[engn].vma, NULL, 0);
 156 }
 157
 158 static void
 159 gf100_fifo_gpfifo_fini(struct nvkm_fifo_chan *base)
 160 {
 161         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 162         struct gf100_fifo *fifo = chan->fifo;
 163         struct nvkm_device *device = fifo->base.engine.subdev.device;
 164         u32 coff = chan->base.chid * 8;
 165
 166         if (!list_empty(&chan->head) && !chan->killed) {
 167                 gf100_fifo_runlist_remove(fifo, chan);
 168                 nvkm_mask(device, 0x003004 + coff, 0x00000001, 0x00000000);
 169                 gf100_fifo_runlist_commit(fifo);
 170         }
 171
 172         gf100_fifo_intr_engine(fifo);
 173
 174         nvkm_wr32(device, 0x003000 + coff, 0x00000000);
 175 }
 176
 177 static void
 178 gf100_fifo_gpfifo_init(struct nvkm_fifo_chan *base)
 179 {
 180         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 181         struct gf100_fifo *fifo = chan->fifo;
 182         struct nvkm_device *device = fifo->base.engine.subdev.device;
 183         u32 addr = chan->base.inst->addr >> 12;
 184         u32 coff = chan->base.chid * 8;
 185
 186         nvkm_wr32(device, 0x003000 + coff, 0xc0000000 | addr);
 187
 188         if (list_empty(&chan->head) && !chan->killed) {
 189                 gf100_fifo_runlist_insert(fifo, chan);
 190                 nvkm_wr32(device, 0x003004 + coff, 0x001f0001);
 191                 gf100_fifo_runlist_commit(fifo);
 192         }
 193 }
 194
 195 static void *
 196 gf100_fifo_gpfifo_dtor(struct nvkm_fifo_chan *base)
 197 {
 198         return gf100_fifo_chan(base);
 199 }
 200
 201 static const struct nvkm_fifo_chan_func
 202 gf100_fifo_gpfifo_func = {
 203         .dtor = gf100_fifo_gpfifo_dtor,
 204         .init = gf100_fifo_gpfifo_init,
 205         .fini = gf100_fifo_gpfifo_fini,
 206         .ntfy = gf100_fifo_chan_ntfy,
 207         .engine_ctor = gf100_fifo_gpfifo_engine_ctor,
 208         .engine_dtor = gf100_fifo_gpfifo_engine_dtor,
 209         .engine_init = gf100_fifo_gpfifo_engine_init,
 210         .engine_fini = gf100_fifo_gpfifo_engine_fini,
 211 };
 212
 213 static int
 214 gf100_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
 215                       void *data, u32 size, struct nvkm_object **pobject)
 216 {
 217         union {
 218                 struct fermi_channel_gpfifo_v0 v0;
 219         } *args = data;
 220         struct gf100_fifo *fifo = gf100_fifo(base);
 221         struct nvkm_object *parent = oclass->parent;
 222         struct gf100_fifo_chan *chan;
 223         u64 usermem, ioffset, ilength;
 224         int ret = -ENOSYS, i;
 225
 226         nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
 227         if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
 228                 nvif_ioctl(parent, "create channel gpfifo vers %d vmm %llx "
 229                                    "ioffset %016llx ilength %08x\n",
 230                            args->v0.version, args->v0.vmm, args->v0.ioffset,
 231                            args->v0.ilength);
 232                 if (!args->v0.vmm)
 233                         return -EINVAL;
 234         } else
 235                 return ret;
 236
 237         /* allocate channel */
 238         if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 239                 return -ENOMEM;
 240         *pobject = &chan->base.object;
 241         chan->fifo = fifo;
 242         INIT_LIST_HEAD(&chan->head);
 243
 244         ret = nvkm_fifo_chan_ctor(&gf100_fifo_gpfifo_func, &fifo->base,
 245                                   0x1000, 0x1000, true, args->v0.vmm, 0,
 246                                   (1ULL << NVKM_ENGINE_CE0) |
 247                                   (1ULL << NVKM_ENGINE_CE1) |
 248                                   (1ULL << NVKM_ENGINE_GR) |
 249                                   (1ULL << NVKM_ENGINE_MSPDEC) |
 250                                   (1ULL << NVKM_ENGINE_MSPPP) |
 251                                   (1ULL << NVKM_ENGINE_MSVLD) |
 252                                   (1ULL << NVKM_ENGINE_SW),
 253                                   1, fifo->user.bar->addr, 0x1000,
 254                                   oclass, &chan->base);
 255         if (ret)
 256                 return ret;
 257
 258         args->v0.chid = chan->base.chid;
 259
 260         /* clear channel control registers */
 261
 262         usermem = chan->base.chid * 0x1000;
 263         ioffset = args->v0.ioffset;
 264         ilength = order_base_2(args->v0.ilength / 8);
 265
 266         nvkm_kmap(fifo->user.mem);
 267         for (i = 0; i < 0x1000; i += 4)
 268                 nvkm_wo32(fifo->user.mem, usermem + i, 0x00000000);
 269         nvkm_done(fifo->user.mem);
 270         usermem = nvkm_memory_addr(fifo->user.mem) + usermem;
 271
 272         /* RAMFC */
 273         nvkm_kmap(chan->base.inst);
 274         nvkm_wo32(chan->base.inst, 0x08, lower_32_bits(usermem));
 275         nvkm_wo32(chan->base.inst, 0x0c, upper_32_bits(usermem));
 276         nvkm_wo32(chan->base.inst, 0x10, 0x0000face);
 277         nvkm_wo32(chan->base.inst, 0x30, 0xfffff902);
 278         nvkm_wo32(chan->base.inst, 0x48, lower_32_bits(ioffset));
 279         nvkm_wo32(chan->base.inst, 0x4c, upper_32_bits(ioffset) |
 280                                          (ilength << 16));
 281         nvkm_wo32(chan->base.inst, 0x54, 0x00000002);
 282         nvkm_wo32(chan->base.inst, 0x84, 0x20400000);
 283         nvkm_wo32(chan->base.inst, 0x94, 0x30000001);
 284         nvkm_wo32(chan->base.inst, 0x9c, 0x00000100);
 285         nvkm_wo32(chan->base.inst, 0xa4, 0x1f1f1f1f);
 286         nvkm_wo32(chan->base.inst, 0xa8, 0x1f1f1f1f);
 287         nvkm_wo32(chan->base.inst, 0xac, 0x0000001f);
 288         nvkm_wo32(chan->base.inst, 0xb8, 0xf8000000);
 289         nvkm_wo32(chan->base.inst, 0xf8, 0x10003080); /* 0x002310 */
 290         nvkm_wo32(chan->base.inst, 0xfc, 0x10000010); /* 0x002350 */
 291         nvkm_done(chan->base.inst);
 292         return 0;
 293 }
 294
 295 const struct nvkm_fifo_chan_oclass
 296 gf100_fifo_gpfifo_oclass = {
 297         .base.oclass = FERMI_CHANNEL_GPFIFO,
 298         .base.minver = 0,
 299         .base.maxver = 0,
 300         .ctor = gf100_fifo_gpfifo_new,
 301 };