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 static u32
  36 gf100_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
  52 static int
  53 gf100_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         nvkm_wr32(device, 0x002634, chan->base.chid);
  64         if (nvkm_msec(device, 2000,
  65                 if (nvkm_rd32(device, 0x002634) == chan->base.chid)
  66                         break;
  67         ) < 0) {
  68                 nvkm_error(subdev, "channel %d [%s] kick timeout\n",
  69                            chan->base.chid, chan->base.object.client->name);
  70                 ret = -EBUSY;
  71                 if (suspend)
  72                         return ret;
  73         }
  74
  75         if (offset) {
  76                 nvkm_kmap(inst);
  77                 nvkm_wo32(inst, offset + 0x00, 0x00000000);
  78                 nvkm_wo32(inst, offset + 0x04, 0x00000000);
  79                 nvkm_done(inst);
  80         }
  81
  82         return ret;
  83 }
  84
  85 static int
  86 gf100_fifo_gpfifo_engine_init(struct nvkm_fifo_chan *base,
  87                               struct nvkm_engine *engine)
  88 {
  89         const u32 offset = gf100_fifo_gpfifo_engine_addr(engine);
  90         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
  91         struct nvkm_gpuobj *inst = chan->base.inst;
  92
  93         if (offset) {
  94                 u64 addr = chan->engn[engine->subdev.index].vma.offset;
  95                 nvkm_kmap(inst);
  96                 nvkm_wo32(inst, offset + 0x00, lower_32_bits(addr) | 4);
  97                 nvkm_wo32(inst, offset + 0x04, upper_32_bits(addr));
  98                 nvkm_done(inst);
  99         }
 100
 101         return 0;
 102 }
 103
 104 static void
 105 gf100_fifo_gpfifo_engine_dtor(struct nvkm_fifo_chan *base,
 106                               struct nvkm_engine *engine)
 107 {
 108         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 109         nvkm_gpuobj_unmap(&chan->engn[engine->subdev.index].vma);
 110         nvkm_gpuobj_del(&chan->engn[engine->subdev.index].inst);
 111 }
 112
 113 static int
 114 gf100_fifo_gpfifo_engine_ctor(struct nvkm_fifo_chan *base,
 115                               struct nvkm_engine *engine,
 116                               struct nvkm_object *object)
 117 {
 118         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 119         int engn = engine->subdev.index;
 120         int ret;
 121
 122         if (!gf100_fifo_gpfifo_engine_addr(engine))
 123                 return 0;
 124
 125         ret = nvkm_object_bind(object, NULL, 0, &chan->engn[engn].inst);
 126         if (ret)
 127                 return ret;
 128
 129         return nvkm_gpuobj_map(chan->engn[engn].inst, chan->vm,
 130                                NV_MEM_ACCESS_RW, &chan->engn[engn].vma);
 131 }
 132
 133 static void
 134 gf100_fifo_gpfifo_fini(struct nvkm_fifo_chan *base)
 135 {
 136         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 137         struct gf100_fifo *fifo = chan->fifo;
 138         struct nvkm_device *device = fifo->base.engine.subdev.device;
 139         u32 coff = chan->base.chid * 8;
 140
 141         if (!list_empty(&chan->head) && !chan->killed) {
 142                 gf100_fifo_runlist_remove(fifo, chan);
 143                 nvkm_mask(device, 0x003004 + coff, 0x00000001, 0x00000000);
 144                 gf100_fifo_runlist_commit(fifo);
 145         }
 146
 147         gf100_fifo_intr_engine(fifo);
 148
 149         nvkm_wr32(device, 0x003000 + coff, 0x00000000);
 150 }
 151
 152 static void
 153 gf100_fifo_gpfifo_init(struct nvkm_fifo_chan *base)
 154 {
 155         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 156         struct gf100_fifo *fifo = chan->fifo;
 157         struct nvkm_device *device = fifo->base.engine.subdev.device;
 158         u32 addr = chan->base.inst->addr >> 12;
 159         u32 coff = chan->base.chid * 8;
 160
 161         nvkm_wr32(device, 0x003000 + coff, 0xc0000000 | addr);
 162
 163         if (list_empty(&chan->head) && !chan->killed) {
 164                 gf100_fifo_runlist_insert(fifo, chan);
 165                 nvkm_wr32(device, 0x003004 + coff, 0x001f0001);
 166                 gf100_fifo_runlist_commit(fifo);
 167         }
 168 }
 169
 170 static void *
 171 gf100_fifo_gpfifo_dtor(struct nvkm_fifo_chan *base)
 172 {
 173         struct gf100_fifo_chan *chan = gf100_fifo_chan(base);
 174         nvkm_vm_ref(NULL, &chan->vm, chan->pgd);
 175         nvkm_gpuobj_del(&chan->pgd);
 176         return chan;
 177 }
 178
 179 static const struct nvkm_fifo_chan_func
 180 gf100_fifo_gpfifo_func = {
 181         .dtor = gf100_fifo_gpfifo_dtor,
 182         .init = gf100_fifo_gpfifo_init,
 183         .fini = gf100_fifo_gpfifo_fini,
 184         .ntfy = g84_fifo_chan_ntfy,
 185         .engine_ctor = gf100_fifo_gpfifo_engine_ctor,
 186         .engine_dtor = gf100_fifo_gpfifo_engine_dtor,
 187         .engine_init = gf100_fifo_gpfifo_engine_init,
 188         .engine_fini = gf100_fifo_gpfifo_engine_fini,
 189 };
 190
 191 static int
 192 gf100_fifo_gpfifo_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass,
 193                       void *data, u32 size, struct nvkm_object **pobject)
 194 {
 195         union {
 196                 struct fermi_channel_gpfifo_v0 v0;
 197         } *args = data;
 198         struct gf100_fifo *fifo = gf100_fifo(base);
 199         struct nvkm_device *device = fifo->base.engine.subdev.device;
 200         struct nvkm_object *parent = oclass->parent;
 201         struct gf100_fifo_chan *chan;
 202         u64 usermem, ioffset, ilength;
 203         int ret = -ENOSYS, i;
 204
 205         nvif_ioctl(parent, "create channel gpfifo size %d\n", size);
 206         if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
 207                 nvif_ioctl(parent, "create channel gpfifo vers %d vm %llx "
 208                                    "ioffset %016llx ilength %08x\n",
 209                            args->v0.version, args->v0.vm, args->v0.ioffset,
 210                            args->v0.ilength);
 211         } else
 212                 return ret;
 213
 214         /* allocate channel */
 215         if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 216                 return -ENOMEM;
 217         *pobject = &chan->base.object;
 218         chan->fifo = fifo;
 219         INIT_LIST_HEAD(&chan->head);
 220
 221         ret = nvkm_fifo_chan_ctor(&gf100_fifo_gpfifo_func, &fifo->base,
 222                                   0x1000, 0x1000, true, args->v0.vm, 0,
 223                                   (1ULL << NVKM_ENGINE_CE0) |
 224                                   (1ULL << NVKM_ENGINE_CE1) |
 225                                   (1ULL << NVKM_ENGINE_GR) |
 226                                   (1ULL << NVKM_ENGINE_MSPDEC) |
 227                                   (1ULL << NVKM_ENGINE_MSPPP) |
 228                                   (1ULL << NVKM_ENGINE_MSVLD) |
 229                                   (1ULL << NVKM_ENGINE_SW),
 230                                   1, fifo->user.bar.offset, 0x1000,
 231                                   oclass, &chan->base);
 232         if (ret)
 233                 return ret;
 234
 235         args->v0.chid = chan->base.chid;
 236
 237         /* page directory */
 238         ret = nvkm_gpuobj_new(device, 0x10000, 0x1000, false, NULL, &chan->pgd);
 239         if (ret)
 240                 return ret;
 241
 242         nvkm_kmap(chan->base.inst);
 243         nvkm_wo32(chan->base.inst, 0x0200, lower_32_bits(chan->pgd->addr));
 244         nvkm_wo32(chan->base.inst, 0x0204, upper_32_bits(chan->pgd->addr));
 245         nvkm_wo32(chan->base.inst, 0x0208, 0xffffffff);
 246         nvkm_wo32(chan->base.inst, 0x020c, 0x000000ff);
 247         nvkm_done(chan->base.inst);
 248
 249         ret = nvkm_vm_ref(chan->base.vm, &chan->vm, chan->pgd);
 250         if (ret)
 251                 return ret;
 252
 253         /* clear channel control registers */
 254
 255         usermem = chan->base.chid * 0x1000;
 256         ioffset = args->v0.ioffset;
 257         ilength = order_base_2(args->v0.ilength / 8);
 258
 259         nvkm_kmap(fifo->user.mem);
 260         for (i = 0; i < 0x1000; i += 4)
 261                 nvkm_wo32(fifo->user.mem, usermem + i, 0x00000000);
 262         nvkm_done(fifo->user.mem);
 263         usermem = nvkm_memory_addr(fifo->user.mem) + usermem;
 264
 265         /* RAMFC */
 266         nvkm_kmap(chan->base.inst);
 267         nvkm_wo32(chan->base.inst, 0x08, lower_32_bits(usermem));
 268         nvkm_wo32(chan->base.inst, 0x0c, upper_32_bits(usermem));
 269         nvkm_wo32(chan->base.inst, 0x10, 0x0000face);
 270         nvkm_wo32(chan->base.inst, 0x30, 0xfffff902);
 271         nvkm_wo32(chan->base.inst, 0x48, lower_32_bits(ioffset));
 272         nvkm_wo32(chan->base.inst, 0x4c, upper_32_bits(ioffset) |
 273                                          (ilength << 16));
 274         nvkm_wo32(chan->base.inst, 0x54, 0x00000002);
 275         nvkm_wo32(chan->base.inst, 0x84, 0x20400000);
 276         nvkm_wo32(chan->base.inst, 0x94, 0x30000001);
 277         nvkm_wo32(chan->base.inst, 0x9c, 0x00000100);
 278         nvkm_wo32(chan->base.inst, 0xa4, 0x1f1f1f1f);
 279         nvkm_wo32(chan->base.inst, 0xa8, 0x1f1f1f1f);
 280         nvkm_wo32(chan->base.inst, 0xac, 0x0000001f);
 281         nvkm_wo32(chan->base.inst, 0xb8, 0xf8000000);
 282         nvkm_wo32(chan->base.inst, 0xf8, 0x10003080); /* 0x002310 */
 283         nvkm_wo32(chan->base.inst, 0xfc, 0x10000010); /* 0x002350 */
 284         nvkm_done(chan->base.inst);
 285         return 0;
 286 }
 287
 288 const struct nvkm_fifo_chan_oclass
 289 gf100_fifo_gpfifo_oclass = {
 290         .base.oclass = FERMI_CHANNEL_GPFIFO,
 291         .base.minver = 0,
 292         .base.maxver = 0,
 293         .ctor = gf100_fifo_gpfifo_new,
 294 };