LXR linux/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
  35static u32
  36gf100_fifo_gpfifo_engine_addr(struct nvkm_engine *engine)
  37{
  38        switch (engine->subdev.index) {
  39        case NVKM_ENGINE_SW    : return 0;
  40        case NVKM_ENGINE_GR    : return 0x0210;
  41        case NVKM_ENGINE_CE0   : return 0x0230;
  42        case NVKM_ENGINE_CE1   : return 0x0240;
  43        case NVKM_ENGINE_MSPDEC: return 0x0250;
  44        case NVKM_ENGINE_MSPPP : return 0x0260;
  45        case NVKM_ENGINE_MSVLD : return 0x0270;
  46        default:
  47                WARN_ON(1);
  48                return 0;
  49        }
  50}
  51
  52static int
  53gf100_fifo_gpfifo_engine_fini(struct nvkm_fifo_chan *base,
  54                              struct nvkm_engine *engine, bool suspend)
  55{
  56        const u32 offset = gf100_fifo_gpfifo_engine_addr(engine);
  57        struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
  58        struct nvkm_subdev *subdev = &chan->fifo->base.engine.subdev;
  59        struct nvkm_device *device = subdev->device;
  60        struct nvkm_gpuobj *inst = chan->base.inst;
  61        int ret = 0;
  62
  63        mutex_lock(&subdev->mutex);
  64        nvkm_wr32(device, 0x002634, chan->base.chid);
  65        if (nvkm_msec(device, 2000,
  66                if (nvkm_rd32(device, 0x002634) == chan->base.chid)
  67                        break;
  68        ) < 0) {
  69                nvkm_error(subdev, "channel %d [%s] kick timeout\n",
  70                           chan->base.chid, chan->base.object.client->name);
  71                ret = -ETIMEDOUT;
  72        }
  73        mutex_unlock(&subdev->mutex);
  74
  75        if (ret && suspend)
  76                return ret;
  77
  78        if (offset) {
  79                nvkm_kmap(inst);
  80                nvkm_wo32(inst, offset + 0x00, 0x00000000);
  81                nvkm_wo32(inst, offset + 0x04, 0x00000000);
  82                nvkm_done(inst);
  83        }
  84
  85        return ret;
  86}
  87
  88static int
  89gf100_fifo_gpfifo_engine_init(struct nvkm_fifo_chan *base,
  90                              struct nvkm_engine *engine)
  91{
  92        const u32 offset = gf100_fifo_gpfifo_engine_addr(engine);
  93        struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
  94        struct nvkm_gpuobj *inst = chan->base.inst;
  95
  96        if (offset) {
  97                u64 addr = chan->engn[engine->subdev.index].vma.offset;
  98                nvkm_kmap(inst);
  99                nvkm_wo32(inst, offset + 0x00, lower_32_bits(addr) | 4);
 100                nvkm_wo32(inst, offset + 0x04, upper_32_bits(addr));
 101                nvkm_done(inst);
 102        }
 103
 104        return 0;
 105}
 106
 107static void
 108gf100_fifo_gpfifo_engine_dtor(struct nvkm_fifo_chan *base,
 109                              struct nvkm_engine *engine)
 110{
 111        struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 112        nvkm_gpuobj_unmap(&chan->engn[engine->subdev.index].vma);
 113        nvkm_gpuobj_del(&chan->engn[engine->subdev.index].inst);
 114}
 115
 116static int
 117gf100_fifo_gpfifo_engine_ctor(struct nvkm_fifo_chan *base,
 118                              struct nvkm_engine *engine,
 119                              struct nvkm_object *object)
 120{
 121        struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 122        int engn = engine->subdev.index;
 123        int ret;
 124
 125        if (!gf100_fifo_gpfifo_engine_addr(engine))
 126                return 0;
 127
 128        ret = nvkm_object_bind(object, NULL, 0, &chan->engn[engn].inst);
 129        if (ret)
 130                return ret;
 131
 132        return nvkm_gpuobj_map(chan->engn[engn].inst, chan->vm,
 133                               NV_MEM_ACCESS_RW, &chan->engn[engn].vma);
 134}
 135
 136static void
 137gf100_fifo_gpfifo_fini(struct nvkm_fifo_chan *base)
 138{
 139        struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 140        struct gf100_fifo *fifo = chan->fifo;
 141        struct nvkm_device *device = fifo->base.engine.subdev.device;
 142        u32 coff = chan->base.chid * 8;
 143
 144        if (!list_empty(&chan->head) && !chan->killed) {
 145                gf100_fifo_runlist_remove(fifo, chan);
 146                nvkm_mask(device, 0x003004 + coff, 0x00000001, 0x00000000);
 147                gf100_fifo_runlist_commit(fifo);
 148        }
 149
 150        gf100_fifo_intr_engine(fifo);
 151
 152        nvkm_wr32(device, 0x003000 + coff, 0x00000000);
 153}
 154
 155static void
 156gf100_fifo_gpfifo_init(struct nvkm_fifo_chan *base)
 157{
 158        struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 159        struct gf100_fifo *fifo = chan->fifo;
 160        struct nvkm_device *device = fifo->base.engine.subdev.device;
 161        u32 addr = chan->base.inst->addr >> 12;
 162        u32 coff = chan->base.chid * 8;
 163
 164        nvkm_wr32(device, 0x003000 + coff, 0xc0000000 | addr);
 165
 166        if (list_empty(&chan->head) && !chan->killed) {
 167                gf100_fifo_runlist_insert(fifo, chan);
 168                nvkm_wr32(device, 0x003004 + coff, 0x001f0001);
 169                gf100_fifo_runlist_commit(fifo);
 170        }
 171}
 172
 173static void *
 174gf100_fifo_gpfifo_dtor(struct nvkm_fifo_chan *base)
 175{
 176        struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 177        nvkm_vm_ref(NULL, &chan->vm, chan->pgd);
 178        nvkm_gpuobj_del(&chan->pgd);
 179        return chan;
 180}
 181
 182static const struct nvkm_fifo_chan_func
 183gf100_fifo_gpfifo_func = {
 184        .dtor = gf100_fifo_gpfifo_dtor,
 185        .init = gf100_fifo_gpfifo_init,
 186        .fini = gf100_fifo_gpfifo_fini,
 187        .ntfy = g84_fifo_chan_ntfy,
 188        .engine_ctor = gf100_fifo_gpfifo_engine_ctor,
 189        .engine_dtor = gf100_fifo_gpfifo_engine_dtor,
 190        .engine_init = gf100_fifo_gpfifo_engine_init,
 191        .engine_fini = gf100_fifo_gpfifo_engine_fini,
 192};
 193
 194static int
 195gf100_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
 196                      void *data, u32 size, struct nvkm_object **pobject)
 197{
 198        union {
 199                struct fermi_channel_gpfifo_v0 v0;
 200        } *args = data;
 201        struct gf100_fifo *fifo = gf100_fifo(base);
 202        struct nvkm_device *device = fifo->base.engine.subdev.device;
 203        struct nvkm_object *parent = oclass->parent;
 204        struct gf100_fifo_chan *chan;
 205        u64 usermem, ioffset, ilength;
 206        int ret = -ENOSYS, i;
 207
 208        nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
 209        if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
 210                nvif_ioctl(parent, "create channel gpfifo vers %d vm %llx "
 211                                   "ioffset %016llx ilength %08x\n",
 212                           args->v0.version, args->v0.vm, args->v0.ioffset,
 213                           args->v0.ilength);
 214        } else
 215                return ret;
 216
 217        /* allocate channel */
 218        if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 219                return -ENOMEM;
 220        *pobject = &chan->base.object;
 221        chan->fifo = fifo;
 222        INIT_LIST_HEAD(&chan->head);
 223
 224        ret = nvkm_fifo_chan_ctor(&gf100_fifo_gpfifo_func, &fifo->base,
 225                                  0x1000, 0x1000, true, args->v0.vm, 0,
 226                                  (1ULL << NVKM_ENGINE_CE0) |
 227                                  (1ULL << NVKM_ENGINE_CE1) |
 228                                  (1ULL << NVKM_ENGINE_GR) |
 229                                  (1ULL << NVKM_ENGINE_MSPDEC) |
 230                                  (1ULL << NVKM_ENGINE_MSPPP) |
 231                                  (1ULL << NVKM_ENGINE_MSVLD) |
 232                                  (1ULL << NVKM_ENGINE_SW),
 233                                  1, fifo->user.bar.offset, 0x1000,
 234                                  oclass, &chan->base);
 235        if (ret)
 236                return ret;
 237
 238        args->v0.chid = chan->base.chid;
 239
 240        /* page directory */
 241        ret = nvkm_gpuobj_new(device, 0x10000, 0x1000, false, NULL, &chan->pgd);
 242        if (ret)
 243                return ret;
 244
 245        nvkm_kmap(chan->base.inst);
 246        nvkm_wo32(chan->base.inst, 0x0200, lower_32_bits(chan->pgd->addr));
 247        nvkm_wo32(chan->base.inst, 0x0204, upper_32_bits(chan->pgd->addr));
 248        nvkm_wo32(chan->base.inst, 0x0208, 0xffffffff);
 249        nvkm_wo32(chan->base.inst, 0x020c, 0x000000ff);
 250        nvkm_done(chan->base.inst);
 251
 252        ret = nvkm_vm_ref(chan->base.vm, &chan->vm, chan->pgd);
 253        if (ret)
 254                return ret;
 255
 256        /* clear channel control registers */
 257
 258        usermem = chan->base.chid * 0x1000;
 259        ioffset = args->v0.ioffset;
 260        ilength = order_base_2(args->v0.ilength / 8);
 261
 262        nvkm_kmap(fifo->user.mem);
 263        for (i = 0; i < 0x1000; i += 4)
 264                nvkm_wo32(fifo->user.mem, usermem + i, 0x00000000);
 265        nvkm_done(fifo->user.mem);
 266        usermem = nvkm_memory_addr(fifo->user.mem) + usermem;
 267
 268        /* RAMFC */
 269        nvkm_kmap(chan->base.inst);
 270        nvkm_wo32(chan->base.inst, 0x08, lower_32_bits(usermem));
 271        nvkm_wo32(chan->base.inst, 0x0c, upper_32_bits(usermem));
 272        nvkm_wo32(chan->base.inst, 0x10, 0x0000face);
 273        nvkm_wo32(chan->base.inst, 0x30, 0xfffff902);
 274        nvkm_wo32(chan->base.inst, 0x48, lower_32_bits(ioffset));
 275        nvkm_wo32(chan->base.inst, 0x4c, upper_32_bits(ioffset) |
 276                                         (ilength << 16));
 277        nvkm_wo32(chan->base.inst, 0x54, 0x00000002);
 278        nvkm_wo32(chan->base.inst, 0x84, 0x20400000);
 279        nvkm_wo32(chan->base.inst, 0x94, 0x30000001);
 280        nvkm_wo32(chan->base.inst, 0x9c, 0x00000100);
 281        nvkm_wo32(chan->base.inst, 0xa4, 0x1f1f1f1f);
 282        nvkm_wo32(chan->base.inst, 0xa8, 0x1f1f1f1f);
 283        nvkm_wo32(chan->base.inst, 0xac, 0x0000001f);
 284        nvkm_wo32(chan->base.inst, 0xb8, 0xf8000000);
 285        nvkm_wo32(chan->base.inst, 0xf8, 0x10003080); /* 0x002310 */
 286        nvkm_wo32(chan->base.inst, 0xfc, 0x10000010); /* 0x002350 */
 287        nvkm_done(chan->base.inst);
 288        return 0;
 289}
 290
 291const struct nvkm_fifo_chan_oclass
 292gf100_fifo_gpfifo_oclass = {
 293        .base.oclass = FERMI_CHANNEL_GPFIFO,
 294        .base.minver = 0,
 295        .base.maxver = 0,
 296        .ctor = gf100_fifo_gpfifo_new,
 297};
 298