linux/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c
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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#include "changk104.h"
  25
  26#include <core/client.h>
  27#include <core/gpuobj.h>
  28#include <subdev/fb.h>
  29#include <subdev/mmu.h>
  30#include <subdev/timer.h>
  31
  32#include <nvif/class.h>
  33#include <nvif/cla06f.h>
  34#include <nvif/unpack.h>
  35
  36static int
  37gk104_fifo_gpfifo_kick(struct gk104_fifo_chan *chan)
  38{
  39        struct gk104_fifo *fifo = chan->fifo;
  40        struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
  41        struct nvkm_device *device = subdev->device;
  42        struct nvkm_client *client = chan->base.object.client;
  43
  44        nvkm_wr32(device, 0x002634, chan->base.chid);
  45        if (nvkm_msec(device, 2000,
  46                if (!(nvkm_rd32(device, 0x002634) & 0x00100000))
  47                        break;
  48        ) < 0) {
  49                nvkm_error(subdev, "channel %d [%s] kick timeout\n",
  50                           chan->base.chid, client->name);
  51                return -EBUSY;
  52        }
  53
  54        return 0;
  55}
  56
  57static u32
  58gk104_fifo_gpfifo_engine_addr(struct nvkm_engine *engine)
  59{
  60        switch (engine->subdev.index) {
  61        case NVKM_ENGINE_SW    :
  62        case NVKM_ENGINE_CE0   :
  63        case NVKM_ENGINE_CE1   :
  64        case NVKM_ENGINE_CE2   : return 0x0000;
  65        case NVKM_ENGINE_GR    : return 0x0210;
  66        case NVKM_ENGINE_SEC   : return 0x0220;
  67        case NVKM_ENGINE_MSPDEC: return 0x0250;
  68        case NVKM_ENGINE_MSPPP : return 0x0260;
  69        case NVKM_ENGINE_MSVLD : return 0x0270;
  70        case NVKM_ENGINE_VIC   : return 0x0280;
  71        case NVKM_ENGINE_MSENC : return 0x0290;
  72        case NVKM_ENGINE_NVDEC : return 0x02100270;
  73        case NVKM_ENGINE_NVENC0: return 0x02100290;
  74        case NVKM_ENGINE_NVENC1: return 0x0210;
  75        default:
  76                WARN_ON(1);
  77                return 0;
  78        }
  79}
  80
  81static int
  82gk104_fifo_gpfifo_engine_fini(struct nvkm_fifo_chan *base,
  83                              struct nvkm_engine *engine, bool suspend)
  84{
  85        struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
  86        struct nvkm_gpuobj *inst = chan->base.inst;
  87        u32 offset = gk104_fifo_gpfifo_engine_addr(engine);
  88        int ret;
  89
  90        ret = gk104_fifo_gpfifo_kick(chan);
  91        if (ret && suspend)
  92                return ret;
  93
  94        if (offset) {
  95                nvkm_kmap(inst);
  96                nvkm_wo32(inst, (offset & 0xffff) + 0x00, 0x00000000);
  97                nvkm_wo32(inst, (offset & 0xffff) + 0x04, 0x00000000);
  98                if ((offset >>= 16)) {
  99                        nvkm_wo32(inst, offset + 0x00, 0x00000000);
 100                        nvkm_wo32(inst, offset + 0x04, 0x00000000);
 101                }
 102                nvkm_done(inst);
 103        }
 104
 105        return ret;
 106}
 107
 108static int
 109gk104_fifo_gpfifo_engine_init(struct nvkm_fifo_chan *base,
 110                              struct nvkm_engine *engine)
 111{
 112        struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
 113        struct nvkm_gpuobj *inst = chan->base.inst;
 114        u32 offset = gk104_fifo_gpfifo_engine_addr(engine);
 115
 116        if (offset) {
 117                u64   addr = chan->engn[engine->subdev.index].vma.offset;
 118                u32 datalo = lower_32_bits(addr) | 0x00000004;
 119                u32 datahi = upper_32_bits(addr);
 120                nvkm_kmap(inst);
 121                nvkm_wo32(inst, (offset & 0xffff) + 0x00, datalo);
 122                nvkm_wo32(inst, (offset & 0xffff) + 0x04, datahi);
 123                if ((offset >>= 16)) {
 124                        nvkm_wo32(inst, offset + 0x00, datalo);
 125                        nvkm_wo32(inst, offset + 0x04, datahi);
 126                }
 127                nvkm_done(inst);
 128        }
 129
 130        return 0;
 131}
 132
 133static void
 134gk104_fifo_gpfifo_engine_dtor(struct nvkm_fifo_chan *base,
 135                              struct nvkm_engine *engine)
 136{
 137        struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
 138        nvkm_gpuobj_unmap(&chan->engn[engine->subdev.index].vma);
 139        nvkm_gpuobj_del(&chan->engn[engine->subdev.index].inst);
 140}
 141
 142static int
 143gk104_fifo_gpfifo_engine_ctor(struct nvkm_fifo_chan *base,
 144                              struct nvkm_engine *engine,
 145                              struct nvkm_object *object)
 146{
 147        struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
 148        int engn = engine->subdev.index;
 149        int ret;
 150
 151        if (!gk104_fifo_gpfifo_engine_addr(engine))
 152                return 0;
 153
 154        ret = nvkm_object_bind(object, NULL, 0, &chan->engn[engn].inst);
 155        if (ret)
 156                return ret;
 157
 158        return nvkm_gpuobj_map(chan->engn[engn].inst, chan->vm,
 159                               NV_MEM_ACCESS_RW, &chan->engn[engn].vma);
 160}
 161
 162static void
 163gk104_fifo_gpfifo_fini(struct nvkm_fifo_chan *base)
 164{
 165        struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
 166        struct gk104_fifo *fifo = chan->fifo;
 167        struct nvkm_device *device = fifo->base.engine.subdev.device;
 168        u32 coff = chan->base.chid * 8;
 169
 170        if (!list_empty(&chan->head)) {
 171                gk104_fifo_runlist_remove(fifo, chan);
 172                nvkm_mask(device, 0x800004 + coff, 0x00000800, 0x00000800);
 173                gk104_fifo_gpfifo_kick(chan);
 174                gk104_fifo_runlist_commit(fifo, chan->runl);
 175        }
 176
 177        nvkm_wr32(device, 0x800000 + coff, 0x00000000);
 178}
 179
 180static void
 181gk104_fifo_gpfifo_init(struct nvkm_fifo_chan *base)
 182{
 183        struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
 184        struct gk104_fifo *fifo = chan->fifo;
 185        struct nvkm_device *device = fifo->base.engine.subdev.device;
 186        u32 addr = chan->base.inst->addr >> 12;
 187        u32 coff = chan->base.chid * 8;
 188
 189        nvkm_mask(device, 0x800004 + coff, 0x000f0000, chan->runl << 16);
 190        nvkm_wr32(device, 0x800000 + coff, 0x80000000 | addr);
 191
 192        if (list_empty(&chan->head) && !chan->killed) {
 193                gk104_fifo_runlist_insert(fifo, chan);
 194                nvkm_mask(device, 0x800004 + coff, 0x00000400, 0x00000400);
 195                gk104_fifo_runlist_commit(fifo, chan->runl);
 196                nvkm_mask(device, 0x800004 + coff, 0x00000400, 0x00000400);
 197        }
 198}
 199
 200static void *
 201gk104_fifo_gpfifo_dtor(struct nvkm_fifo_chan *base)
 202{
 203        struct gk104_fifo_chan *chan = gk104_fifo_chan(base);
 204        nvkm_vm_ref(NULL, &chan->vm, chan->pgd);
 205        nvkm_gpuobj_del(&chan->pgd);
 206        return chan;
 207}
 208
 209static const struct nvkm_fifo_chan_func
 210gk104_fifo_gpfifo_func = {
 211        .dtor = gk104_fifo_gpfifo_dtor,
 212        .init = gk104_fifo_gpfifo_init,
 213        .fini = gk104_fifo_gpfifo_fini,
 214        .ntfy = g84_fifo_chan_ntfy,
 215        .engine_ctor = gk104_fifo_gpfifo_engine_ctor,
 216        .engine_dtor = gk104_fifo_gpfifo_engine_dtor,
 217        .engine_init = gk104_fifo_gpfifo_engine_init,
 218        .engine_fini = gk104_fifo_gpfifo_engine_fini,
 219};
 220
 221struct gk104_fifo_chan_func {
 222        u32 engine;
 223        u64 subdev;
 224};
 225
 226static int
 227gk104_fifo_gpfifo_new_(const struct gk104_fifo_chan_func *func,
 228                       struct gk104_fifo *fifo, u32 *engmask, u16 *chid,
 229                       u64 vm, u64 ioffset, u64 ilength,
 230                       const struct nvkm_oclass *oclass,
 231                       struct nvkm_object **pobject)
 232{
 233        struct nvkm_device *device = fifo->base.engine.subdev.device;
 234        struct gk104_fifo_chan *chan;
 235        int runlist = -1, ret = -ENOSYS, i, j;
 236        u32 engines = 0, present = 0;
 237        u64 subdevs = 0;
 238        u64 usermem;
 239
 240        /* Determine which downstream engines are present */
 241        for (i = 0; i < fifo->engine_nr; i++) {
 242                struct nvkm_engine *engine = fifo->engine[i].engine;
 243                if (engine) {
 244                        u64 submask = BIT_ULL(engine->subdev.index);
 245                        for (j = 0; func[j].subdev; j++) {
 246                                if (func[j].subdev & submask) {
 247                                        present |= func[j].engine;
 248                                        break;
 249                                }
 250                        }
 251
 252                        if (!func[j].subdev)
 253                                continue;
 254
 255                        if (runlist < 0 && (*engmask & present))
 256                                runlist = fifo->engine[i].runl;
 257                        if (runlist == fifo->engine[i].runl) {
 258                                engines |= func[j].engine;
 259                                subdevs |= func[j].subdev;
 260                        }
 261                }
 262        }
 263
 264        /* Just an engine mask query?  All done here! */
 265        if (!*engmask) {
 266                *engmask = present;
 267                return nvkm_object_new(oclass, NULL, 0, pobject);
 268        }
 269
 270        /* No runlist?  No supported engines. */
 271        *engmask = present;
 272        if (runlist < 0)
 273                return -ENODEV;
 274        *engmask = engines;
 275
 276        /* Allocate the channel. */
 277        if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 278                return -ENOMEM;
 279        *pobject = &chan->base.object;
 280        chan->fifo = fifo;
 281        chan->runl = runlist;
 282        INIT_LIST_HEAD(&chan->head);
 283
 284        ret = nvkm_fifo_chan_ctor(&gk104_fifo_gpfifo_func, &fifo->base,
 285                                  0x1000, 0x1000, true, vm, 0, subdevs,
 286                                  1, fifo->user.bar.offset, 0x200,
 287                                  oclass, &chan->base);
 288        if (ret)
 289                return ret;
 290
 291        *chid = chan->base.chid;
 292
 293        /* Page directory. */
 294        ret = nvkm_gpuobj_new(device, 0x10000, 0x1000, false, NULL, &chan->pgd);
 295        if (ret)
 296                return ret;
 297
 298        nvkm_kmap(chan->base.inst);
 299        nvkm_wo32(chan->base.inst, 0x0200, lower_32_bits(chan->pgd->addr));
 300        nvkm_wo32(chan->base.inst, 0x0204, upper_32_bits(chan->pgd->addr));
 301        nvkm_wo32(chan->base.inst, 0x0208, 0xffffffff);
 302        nvkm_wo32(chan->base.inst, 0x020c, 0x000000ff);
 303        nvkm_done(chan->base.inst);
 304
 305        ret = nvkm_vm_ref(chan->base.vm, &chan->vm, chan->pgd);
 306        if (ret)
 307                return ret;
 308
 309        /* Clear channel control registers. */
 310        usermem = chan->base.chid * 0x200;
 311        ilength = order_base_2(ilength / 8);
 312
 313        nvkm_kmap(fifo->user.mem);
 314        for (i = 0; i < 0x200; i += 4)
 315                nvkm_wo32(fifo->user.mem, usermem + i, 0x00000000);
 316        nvkm_done(fifo->user.mem);
 317        usermem = nvkm_memory_addr(fifo->user.mem) + usermem;
 318
 319        /* RAMFC */
 320        nvkm_kmap(chan->base.inst);
 321        nvkm_wo32(chan->base.inst, 0x08, lower_32_bits(usermem));
 322        nvkm_wo32(chan->base.inst, 0x0c, upper_32_bits(usermem));
 323        nvkm_wo32(chan->base.inst, 0x10, 0x0000face);
 324        nvkm_wo32(chan->base.inst, 0x30, 0xfffff902);
 325        nvkm_wo32(chan->base.inst, 0x48, lower_32_bits(ioffset));
 326        nvkm_wo32(chan->base.inst, 0x4c, upper_32_bits(ioffset) |
 327                                         (ilength << 16));
 328        nvkm_wo32(chan->base.inst, 0x84, 0x20400000);
 329        nvkm_wo32(chan->base.inst, 0x94, 0x30000001);
 330        nvkm_wo32(chan->base.inst, 0x9c, 0x00000100);
 331        nvkm_wo32(chan->base.inst, 0xac, 0x0000001f);
 332        nvkm_wo32(chan->base.inst, 0xe8, chan->base.chid);
 333        nvkm_wo32(chan->base.inst, 0xb8, 0xf8000000);
 334        nvkm_wo32(chan->base.inst, 0xf8, 0x10003080); /* 0x002310 */
 335        nvkm_wo32(chan->base.inst, 0xfc, 0x10000010); /* 0x002350 */
 336        nvkm_done(chan->base.inst);
 337        return 0;
 338}
 339
 340static const struct gk104_fifo_chan_func
 341gk104_fifo_gpfifo[] = {
 342        { NVA06F_V0_ENGINE_SW | NVA06F_V0_ENGINE_GR,
 343                BIT_ULL(NVKM_ENGINE_SW) | BIT_ULL(NVKM_ENGINE_GR)
 344        },
 345        { NVA06F_V0_ENGINE_SEC   , BIT_ULL(NVKM_ENGINE_SEC   ) },
 346        { NVA06F_V0_ENGINE_MSVLD , BIT_ULL(NVKM_ENGINE_MSVLD ) },
 347        { NVA06F_V0_ENGINE_MSPDEC, BIT_ULL(NVKM_ENGINE_MSPDEC) },
 348        { NVA06F_V0_ENGINE_MSPPP , BIT_ULL(NVKM_ENGINE_MSPPP ) },
 349        { NVA06F_V0_ENGINE_MSENC , BIT_ULL(NVKM_ENGINE_MSENC ) },
 350        { NVA06F_V0_ENGINE_VIC   , BIT_ULL(NVKM_ENGINE_VIC   ) },
 351        { NVA06F_V0_ENGINE_NVDEC , BIT_ULL(NVKM_ENGINE_NVDEC ) },
 352        { NVA06F_V0_ENGINE_NVENC0, BIT_ULL(NVKM_ENGINE_NVENC0) },
 353        { NVA06F_V0_ENGINE_NVENC1, BIT_ULL(NVKM_ENGINE_NVENC1) },
 354        { NVA06F_V0_ENGINE_CE0   , BIT_ULL(NVKM_ENGINE_CE0   ) },
 355        { NVA06F_V0_ENGINE_CE1   , BIT_ULL(NVKM_ENGINE_CE1   ) },
 356        { NVA06F_V0_ENGINE_CE2   , BIT_ULL(NVKM_ENGINE_CE2   ) },
 357        {}
 358};
 359
 360int
 361gk104_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
 362                      void *data, u32 size, struct nvkm_object **pobject)
 363{
 364        struct nvkm_object *parent = oclass->parent;
 365        union {
 366                struct kepler_channel_gpfifo_a_v0 v0;
 367        } *args = data;
 368        struct gk104_fifo *fifo = gk104_fifo(base);
 369        int ret = -ENOSYS;
 370
 371        nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
 372        if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
 373                nvif_ioctl(parent, "create channel gpfifo vers %d vm %llx "
 374                                   "ioffset %016llx ilength %08x engine %08x\n",
 375                           args->v0.version, args->v0.vm, args->v0.ioffset,
 376                           args->v0.ilength, args->v0.engines);
 377                return gk104_fifo_gpfifo_new_(gk104_fifo_gpfifo, fifo,
 378                                              &args->v0.engines,
 379                                              &args->v0.chid,
 380                                               args->v0.vm,
 381                                               args->v0.ioffset,
 382                                               args->v0.ilength,
 383                                              oclass, pobject);
 384
 385        }
 386
 387        return ret;
 388}
 389
 390const struct nvkm_fifo_chan_oclass
 391gk104_fifo_gpfifo_oclass = {
 392        .base.oclass = KEPLER_CHANNEL_GPFIFO_A,
 393        .base.minver = 0,
 394        .base.maxver = 0,
 395        .ctor = gk104_fifo_gpfifo_new,
 396};
 397