drivers/gpu/drm/nouveau/nouveau_state.c

   1 /*
   2  * Copyright 2005 Stephane Marchesin
   3  * Copyright 2008 Stuart Bennett
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 #include <linux/swab.h>
  27 #include "drmP.h"
  28 #include "drm.h"
  29 #include "drm_sarea.h"
  30 #include "drm_crtc_helper.h"
  31 #include <linux/vgaarb.h>
  32
  33 #include "nouveau_drv.h"
  34 #include "nouveau_drm.h"
  35 #include "nv50_display.h"
  36
  37 static int nouveau_stub_init(struct drm_device *dev) { return 0; }
  38 static void nouveau_stub_takedown(struct drm_device *dev) {}
  39
  40 static int nouveau_init_engine_ptrs(struct drm_device *dev)
  41 {
  42         struct drm_nouveau_private *dev_priv = dev->dev_private;
  43         struct nouveau_engine *engine = &dev_priv->engine;
  44
  45         switch (dev_priv->chipset & 0xf0) {
  46         case 0x00:
  47                 engine->instmem.init            = nv04_instmem_init;
  48                 engine->instmem.takedown        = nv04_instmem_takedown;
  49                 engine->instmem.suspend         = nv04_instmem_suspend;
  50                 engine->instmem.resume          = nv04_instmem_resume;
  51                 engine->instmem.populate        = nv04_instmem_populate;
  52                 engine->instmem.clear           = nv04_instmem_clear;
  53                 engine->instmem.bind            = nv04_instmem_bind;
  54                 engine->instmem.unbind          = nv04_instmem_unbind;
  55                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
  56                 engine->instmem.finish_access   = nv04_instmem_finish_access;
  57                 engine->mc.init                 = nv04_mc_init;
  58                 engine->mc.takedown             = nv04_mc_takedown;
  59                 engine->timer.init              = nv04_timer_init;
  60                 engine->timer.read              = nv04_timer_read;
  61                 engine->timer.takedown          = nv04_timer_takedown;
  62                 engine->fb.init                 = nv04_fb_init;
  63                 engine->fb.takedown             = nv04_fb_takedown;
  64                 engine->graph.grclass           = nv04_graph_grclass;
  65                 engine->graph.init              = nv04_graph_init;
  66                 engine->graph.takedown          = nv04_graph_takedown;
  67                 engine->graph.fifo_access       = nv04_graph_fifo_access;
  68                 engine->graph.channel           = nv04_graph_channel;
  69                 engine->graph.create_context    = nv04_graph_create_context;
  70                 engine->graph.destroy_context   = nv04_graph_destroy_context;
  71                 engine->graph.load_context      = nv04_graph_load_context;
  72                 engine->graph.unload_context    = nv04_graph_unload_context;
  73                 engine->fifo.channels           = 16;
  74                 engine->fifo.init               = nv04_fifo_init;
  75                 engine->fifo.takedown           = nouveau_stub_takedown;
  76                 engine->fifo.disable            = nv04_fifo_disable;
  77                 engine->fifo.enable             = nv04_fifo_enable;
  78                 engine->fifo.reassign           = nv04_fifo_reassign;
  79                 engine->fifo.channel_id         = nv04_fifo_channel_id;
  80                 engine->fifo.create_context     = nv04_fifo_create_context;
  81                 engine->fifo.destroy_context    = nv04_fifo_destroy_context;
  82                 engine->fifo.load_context       = nv04_fifo_load_context;
  83                 engine->fifo.unload_context     = nv04_fifo_unload_context;
  84                 break;
  85         case 0x10:
  86                 engine->instmem.init            = nv04_instmem_init;
  87                 engine->instmem.takedown        = nv04_instmem_takedown;
  88                 engine->instmem.suspend         = nv04_instmem_suspend;
  89                 engine->instmem.resume          = nv04_instmem_resume;
  90                 engine->instmem.populate        = nv04_instmem_populate;
  91                 engine->instmem.clear           = nv04_instmem_clear;
  92                 engine->instmem.bind            = nv04_instmem_bind;
  93                 engine->instmem.unbind          = nv04_instmem_unbind;
  94                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
  95                 engine->instmem.finish_access   = nv04_instmem_finish_access;
  96                 engine->mc.init                 = nv04_mc_init;
  97                 engine->mc.takedown             = nv04_mc_takedown;
  98                 engine->timer.init              = nv04_timer_init;
  99                 engine->timer.read              = nv04_timer_read;
 100                 engine->timer.takedown          = nv04_timer_takedown;
 101                 engine->fb.init                 = nv10_fb_init;
 102                 engine->fb.takedown             = nv10_fb_takedown;
 103                 engine->graph.grclass           = nv10_graph_grclass;
 104                 engine->graph.init              = nv10_graph_init;
 105                 engine->graph.takedown          = nv10_graph_takedown;
 106                 engine->graph.channel           = nv10_graph_channel;
 107                 engine->graph.create_context    = nv10_graph_create_context;
 108                 engine->graph.destroy_context   = nv10_graph_destroy_context;
 109                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 110                 engine->graph.load_context      = nv10_graph_load_context;
 111                 engine->graph.unload_context    = nv10_graph_unload_context;
 112                 engine->fifo.channels           = 32;
 113                 engine->fifo.init               = nv10_fifo_init;
 114                 engine->fifo.takedown           = nouveau_stub_takedown;
 115                 engine->fifo.disable            = nv04_fifo_disable;
 116                 engine->fifo.enable             = nv04_fifo_enable;
 117                 engine->fifo.reassign           = nv04_fifo_reassign;
 118                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 119                 engine->fifo.create_context     = nv10_fifo_create_context;
 120                 engine->fifo.destroy_context    = nv10_fifo_destroy_context;
 121                 engine->fifo.load_context       = nv10_fifo_load_context;
 122                 engine->fifo.unload_context     = nv10_fifo_unload_context;
 123                 break;
 124         case 0x20:
 125                 engine->instmem.init            = nv04_instmem_init;
 126                 engine->instmem.takedown        = nv04_instmem_takedown;
 127                 engine->instmem.suspend         = nv04_instmem_suspend;
 128                 engine->instmem.resume          = nv04_instmem_resume;
 129                 engine->instmem.populate        = nv04_instmem_populate;
 130                 engine->instmem.clear           = nv04_instmem_clear;
 131                 engine->instmem.bind            = nv04_instmem_bind;
 132                 engine->instmem.unbind          = nv04_instmem_unbind;
 133                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
 134                 engine->instmem.finish_access   = nv04_instmem_finish_access;
 135                 engine->mc.init                 = nv04_mc_init;
 136                 engine->mc.takedown             = nv04_mc_takedown;
 137                 engine->timer.init              = nv04_timer_init;
 138                 engine->timer.read              = nv04_timer_read;
 139                 engine->timer.takedown          = nv04_timer_takedown;
 140                 engine->fb.init                 = nv10_fb_init;
 141                 engine->fb.takedown             = nv10_fb_takedown;
 142                 engine->graph.grclass           = nv20_graph_grclass;
 143                 engine->graph.init              = nv20_graph_init;
 144                 engine->graph.takedown          = nv20_graph_takedown;
 145                 engine->graph.channel           = nv10_graph_channel;
 146                 engine->graph.create_context    = nv20_graph_create_context;
 147                 engine->graph.destroy_context   = nv20_graph_destroy_context;
 148                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 149                 engine->graph.load_context      = nv20_graph_load_context;
 150                 engine->graph.unload_context    = nv20_graph_unload_context;
 151                 engine->fifo.channels           = 32;
 152                 engine->fifo.init               = nv10_fifo_init;
 153                 engine->fifo.takedown           = nouveau_stub_takedown;
 154                 engine->fifo.disable            = nv04_fifo_disable;
 155                 engine->fifo.enable             = nv04_fifo_enable;
 156                 engine->fifo.reassign           = nv04_fifo_reassign;
 157                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 158                 engine->fifo.create_context     = nv10_fifo_create_context;
 159                 engine->fifo.destroy_context    = nv10_fifo_destroy_context;
 160                 engine->fifo.load_context       = nv10_fifo_load_context;
 161                 engine->fifo.unload_context     = nv10_fifo_unload_context;
 162                 break;
 163         case 0x30:
 164                 engine->instmem.init            = nv04_instmem_init;
 165                 engine->instmem.takedown        = nv04_instmem_takedown;
 166                 engine->instmem.suspend         = nv04_instmem_suspend;
 167                 engine->instmem.resume          = nv04_instmem_resume;
 168                 engine->instmem.populate        = nv04_instmem_populate;
 169                 engine->instmem.clear           = nv04_instmem_clear;
 170                 engine->instmem.bind            = nv04_instmem_bind;
 171                 engine->instmem.unbind          = nv04_instmem_unbind;
 172                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
 173                 engine->instmem.finish_access   = nv04_instmem_finish_access;
 174                 engine->mc.init                 = nv04_mc_init;
 175                 engine->mc.takedown             = nv04_mc_takedown;
 176                 engine->timer.init              = nv04_timer_init;
 177                 engine->timer.read              = nv04_timer_read;
 178                 engine->timer.takedown          = nv04_timer_takedown;
 179                 engine->fb.init                 = nv10_fb_init;
 180                 engine->fb.takedown             = nv10_fb_takedown;
 181                 engine->graph.grclass           = nv30_graph_grclass;
 182                 engine->graph.init              = nv30_graph_init;
 183                 engine->graph.takedown          = nv20_graph_takedown;
 184                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 185                 engine->graph.channel           = nv10_graph_channel;
 186                 engine->graph.create_context    = nv20_graph_create_context;
 187                 engine->graph.destroy_context   = nv20_graph_destroy_context;
 188                 engine->graph.load_context      = nv20_graph_load_context;
 189                 engine->graph.unload_context    = nv20_graph_unload_context;
 190                 engine->fifo.channels           = 32;
 191                 engine->fifo.init               = nv10_fifo_init;
 192                 engine->fifo.takedown           = nouveau_stub_takedown;
 193                 engine->fifo.disable            = nv04_fifo_disable;
 194                 engine->fifo.enable             = nv04_fifo_enable;
 195                 engine->fifo.reassign           = nv04_fifo_reassign;
 196                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 197                 engine->fifo.create_context     = nv10_fifo_create_context;
 198                 engine->fifo.destroy_context    = nv10_fifo_destroy_context;
 199                 engine->fifo.load_context       = nv10_fifo_load_context;
 200                 engine->fifo.unload_context     = nv10_fifo_unload_context;
 201                 break;
 202         case 0x40:
 203         case 0x60:
 204                 engine->instmem.init            = nv04_instmem_init;
 205                 engine->instmem.takedown        = nv04_instmem_takedown;
 206                 engine->instmem.suspend         = nv04_instmem_suspend;
 207                 engine->instmem.resume          = nv04_instmem_resume;
 208                 engine->instmem.populate        = nv04_instmem_populate;
 209                 engine->instmem.clear           = nv04_instmem_clear;
 210                 engine->instmem.bind            = nv04_instmem_bind;
 211                 engine->instmem.unbind          = nv04_instmem_unbind;
 212                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
 213                 engine->instmem.finish_access   = nv04_instmem_finish_access;
 214                 engine->mc.init                 = nv40_mc_init;
 215                 engine->mc.takedown             = nv40_mc_takedown;
 216                 engine->timer.init              = nv04_timer_init;
 217                 engine->timer.read              = nv04_timer_read;
 218                 engine->timer.takedown          = nv04_timer_takedown;
 219                 engine->fb.init                 = nv40_fb_init;
 220                 engine->fb.takedown             = nv40_fb_takedown;
 221                 engine->graph.grclass           = nv40_graph_grclass;
 222                 engine->graph.init              = nv40_graph_init;
 223                 engine->graph.takedown          = nv40_graph_takedown;
 224                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 225                 engine->graph.channel           = nv40_graph_channel;
 226                 engine->graph.create_context    = nv40_graph_create_context;
 227                 engine->graph.destroy_context   = nv40_graph_destroy_context;
 228                 engine->graph.load_context      = nv40_graph_load_context;
 229                 engine->graph.unload_context    = nv40_graph_unload_context;
 230                 engine->fifo.channels           = 32;
 231                 engine->fifo.init               = nv40_fifo_init;
 232                 engine->fifo.takedown           = nouveau_stub_takedown;
 233                 engine->fifo.disable            = nv04_fifo_disable;
 234                 engine->fifo.enable             = nv04_fifo_enable;
 235                 engine->fifo.reassign           = nv04_fifo_reassign;
 236                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 237                 engine->fifo.create_context     = nv40_fifo_create_context;
 238                 engine->fifo.destroy_context    = nv40_fifo_destroy_context;
 239                 engine->fifo.load_context       = nv40_fifo_load_context;
 240                 engine->fifo.unload_context     = nv40_fifo_unload_context;
 241                 break;
 242         case 0x50:
 243         case 0x80: /* gotta love NVIDIA's consistency.. */
 244         case 0x90:
 245         case 0xA0:
 246                 engine->instmem.init            = nv50_instmem_init;
 247                 engine->instmem.takedown        = nv50_instmem_takedown;
 248                 engine->instmem.suspend         = nv50_instmem_suspend;
 249                 engine->instmem.resume          = nv50_instmem_resume;
 250                 engine->instmem.populate        = nv50_instmem_populate;
 251                 engine->instmem.clear           = nv50_instmem_clear;
 252                 engine->instmem.bind            = nv50_instmem_bind;
 253                 engine->instmem.unbind          = nv50_instmem_unbind;
 254                 engine->instmem.prepare_access  = nv50_instmem_prepare_access;
 255                 engine->instmem.finish_access   = nv50_instmem_finish_access;
 256                 engine->mc.init                 = nv50_mc_init;
 257                 engine->mc.takedown             = nv50_mc_takedown;
 258                 engine->timer.init              = nv04_timer_init;
 259                 engine->timer.read              = nv04_timer_read;
 260                 engine->timer.takedown          = nv04_timer_takedown;
 261                 engine->fb.init                 = nouveau_stub_init;
 262                 engine->fb.takedown             = nouveau_stub_takedown;
 263                 engine->graph.grclass           = nv50_graph_grclass;
 264                 engine->graph.init              = nv50_graph_init;
 265                 engine->graph.takedown          = nv50_graph_takedown;
 266                 engine->graph.fifo_access       = nv50_graph_fifo_access;
 267                 engine->graph.channel           = nv50_graph_channel;
 268                 engine->graph.create_context    = nv50_graph_create_context;
 269                 engine->graph.destroy_context   = nv50_graph_destroy_context;
 270                 engine->graph.load_context      = nv50_graph_load_context;
 271                 engine->graph.unload_context    = nv50_graph_unload_context;
 272                 engine->fifo.channels           = 128;
 273                 engine->fifo.init               = nv50_fifo_init;
 274                 engine->fifo.takedown           = nv50_fifo_takedown;
 275                 engine->fifo.disable            = nv04_fifo_disable;
 276                 engine->fifo.enable             = nv04_fifo_enable;
 277                 engine->fifo.reassign           = nv04_fifo_reassign;
 278                 engine->fifo.channel_id         = nv50_fifo_channel_id;
 279                 engine->fifo.create_context     = nv50_fifo_create_context;
 280                 engine->fifo.destroy_context    = nv50_fifo_destroy_context;
 281                 engine->fifo.load_context       = nv50_fifo_load_context;
 282                 engine->fifo.unload_context     = nv50_fifo_unload_context;
 283                 break;
 284         default:
 285                 NV_ERROR(dev, "NV%02x unsupported\n", dev_priv->chipset);
 286                 return 1;
 287         }
 288
 289         return 0;
 290 }
 291
 292 static unsigned int
 293 nouveau_vga_set_decode(void *priv, bool state)
 294 {
 295         if (state)
 296                 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
 297                        VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 298         else
 299                 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 300 }
 301
 302 static int
 303 nouveau_card_init_channel(struct drm_device *dev)
 304 {
 305         struct drm_nouveau_private *dev_priv = dev->dev_private;
 306         struct nouveau_gpuobj *gpuobj;
 307         int ret;
 308
 309         ret = nouveau_channel_alloc(dev, &dev_priv->channel,
 310                                     (struct drm_file *)-2,
 311                                     NvDmaFB, NvDmaTT);
 312         if (ret)
 313                 return ret;
 314
 315         gpuobj = NULL;
 316         ret = nouveau_gpuobj_dma_new(dev_priv->channel, NV_CLASS_DMA_IN_MEMORY,
 317                                      0, nouveau_mem_fb_amount(dev),
 318                                      NV_DMA_ACCESS_RW, NV_DMA_TARGET_VIDMEM,
 319                                      &gpuobj);
 320         if (ret)
 321                 goto out_err;
 322
 323         ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaVRAM,
 324                                      gpuobj, NULL);
 325         if (ret)
 326                 goto out_err;
 327
 328         gpuobj = NULL;
 329         ret = nouveau_gpuobj_gart_dma_new(dev_priv->channel, 0,
 330                                           dev_priv->gart_info.aper_size,
 331                                           NV_DMA_ACCESS_RW, &gpuobj, NULL);
 332         if (ret)
 333                 goto out_err;
 334
 335         ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaGART,
 336                                      gpuobj, NULL);
 337         if (ret)
 338                 goto out_err;
 339
 340         return 0;
 341 out_err:
 342         nouveau_gpuobj_del(dev, &gpuobj);
 343         nouveau_channel_free(dev_priv->channel);
 344         dev_priv->channel = NULL;
 345         return ret;
 346 }
 347
 348 int
 349 nouveau_card_init(struct drm_device *dev)
 350 {
 351         struct drm_nouveau_private *dev_priv = dev->dev_private;
 352         struct nouveau_engine *engine;
 353         int ret;
 354
 355         NV_DEBUG(dev, "prev state = %d\n", dev_priv->init_state);
 356
 357         if (dev_priv->init_state == NOUVEAU_CARD_INIT_DONE)
 358                 return 0;
 359
 360         vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode);
 361
 362         /* Initialise internal driver API hooks */
 363         ret = nouveau_init_engine_ptrs(dev);
 364         if (ret)
 365                 goto out;
 366         engine = &dev_priv->engine;
 367         dev_priv->init_state = NOUVEAU_CARD_INIT_FAILED;
 368
 369         /* Parse BIOS tables / Run init tables if card not POSTed */
 370         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 371                 ret = nouveau_bios_init(dev);
 372                 if (ret)
 373                         goto out;
 374         }
 375
 376         ret = nouveau_gpuobj_early_init(dev);
 377         if (ret)
 378                 goto out_bios;
 379
 380         /* Initialise instance memory, must happen before mem_init so we
 381          * know exactly how much VRAM we're able to use for "normal"
 382          * purposes.
 383          */
 384         ret = engine->instmem.init(dev);
 385         if (ret)
 386                 goto out_gpuobj_early;
 387
 388         /* Setup the memory manager */
 389         ret = nouveau_mem_init(dev);
 390         if (ret)
 391                 goto out_instmem;
 392
 393         ret = nouveau_gpuobj_init(dev);
 394         if (ret)
 395                 goto out_mem;
 396
 397         /* PMC */
 398         ret = engine->mc.init(dev);
 399         if (ret)
 400                 goto out_gpuobj;
 401
 402         /* PTIMER */
 403         ret = engine->timer.init(dev);
 404         if (ret)
 405                 goto out_mc;
 406
 407         /* PFB */
 408         ret = engine->fb.init(dev);
 409         if (ret)
 410                 goto out_timer;
 411
 412         /* PGRAPH */
 413         ret = engine->graph.init(dev);
 414         if (ret)
 415                 goto out_fb;
 416
 417         /* PFIFO */
 418         ret = engine->fifo.init(dev);
 419         if (ret)
 420                 goto out_graph;
 421
 422         /* this call irq_preinstall, register irq handler and
 423          * call irq_postinstall
 424          */
 425         ret = drm_irq_install(dev);
 426         if (ret)
 427                 goto out_fifo;
 428
 429         ret = drm_vblank_init(dev, 0);
 430         if (ret)
 431                 goto out_irq;
 432
 433         /* what about PVIDEO/PCRTC/PRAMDAC etc? */
 434
 435         if (!engine->graph.accel_blocked) {
 436                 ret = nouveau_card_init_channel(dev);
 437                 if (ret)
 438                         goto out_irq;
 439         }
 440
 441         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 442                 if (dev_priv->card_type >= NV_50)
 443                         ret = nv50_display_create(dev);
 444                 else
 445                         ret = nv04_display_create(dev);
 446                 if (ret)
 447                         goto out_irq;
 448         }
 449
 450         ret = nouveau_backlight_init(dev);
 451         if (ret)
 452                 NV_ERROR(dev, "Error %d registering backlight\n", ret);
 453
 454         dev_priv->init_state = NOUVEAU_CARD_INIT_DONE;
 455
 456         if (drm_core_check_feature(dev, DRIVER_MODESET))
 457                 drm_helper_initial_config(dev);
 458
 459         return 0;
 460
 461 out_irq:
 462         drm_irq_uninstall(dev);
 463 out_fifo:
 464         engine->fifo.takedown(dev);
 465 out_graph:
 466         engine->graph.takedown(dev);
 467 out_fb:
 468         engine->fb.takedown(dev);
 469 out_timer:
 470         engine->timer.takedown(dev);
 471 out_mc:
 472         engine->mc.takedown(dev);
 473 out_gpuobj:
 474         nouveau_gpuobj_takedown(dev);
 475 out_mem:
 476         nouveau_mem_close(dev);
 477 out_instmem:
 478         engine->instmem.takedown(dev);
 479 out_gpuobj_early:
 480         nouveau_gpuobj_late_takedown(dev);
 481 out_bios:
 482         nouveau_bios_takedown(dev);
 483 out:
 484         vga_client_register(dev->pdev, NULL, NULL, NULL);
 485         return ret;
 486 }
 487
 488 static void nouveau_card_takedown(struct drm_device *dev)
 489 {
 490         struct drm_nouveau_private *dev_priv = dev->dev_private;
 491         struct nouveau_engine *engine = &dev_priv->engine;
 492
 493         NV_DEBUG(dev, "prev state = %d\n", dev_priv->init_state);
 494
 495         if (dev_priv->init_state != NOUVEAU_CARD_INIT_DOWN) {
 496                 nouveau_backlight_exit(dev);
 497
 498                 if (dev_priv->channel) {
 499                         nouveau_channel_free(dev_priv->channel);
 500                         dev_priv->channel = NULL;
 501                 }
 502
 503                 engine->fifo.takedown(dev);
 504                 engine->graph.takedown(dev);
 505                 engine->fb.takedown(dev);
 506                 engine->timer.takedown(dev);
 507                 engine->mc.takedown(dev);
 508
 509                 mutex_lock(&dev->struct_mutex);
 510                 ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_TT);
 511                 mutex_unlock(&dev->struct_mutex);
 512                 nouveau_sgdma_takedown(dev);
 513
 514                 nouveau_gpuobj_takedown(dev);
 515                 nouveau_mem_close(dev);
 516                 engine->instmem.takedown(dev);
 517
 518                 if (drm_core_check_feature(dev, DRIVER_MODESET))
 519                         drm_irq_uninstall(dev);
 520
 521                 nouveau_gpuobj_late_takedown(dev);
 522                 nouveau_bios_takedown(dev);
 523
 524                 vga_client_register(dev->pdev, NULL, NULL, NULL);
 525
 526                 dev_priv->init_state = NOUVEAU_CARD_INIT_DOWN;
 527         }
 528 }
 529
 530 /* here a client dies, release the stuff that was allocated for its
 531  * file_priv */
 532 void nouveau_preclose(struct drm_device *dev, struct drm_file *file_priv)
 533 {
 534         nouveau_channel_cleanup(dev, file_priv);
 535 }
 536
 537 /* first module load, setup the mmio/fb mapping */
 538 /* KMS: we need mmio at load time, not when the first drm client opens. */
 539 int nouveau_firstopen(struct drm_device *dev)
 540 {
 541         return 0;
 542 }
 543
 544 /* if we have an OF card, copy vbios to RAMIN */
 545 static void nouveau_OF_copy_vbios_to_ramin(struct drm_device *dev)
 546 {
 547 #if defined(__powerpc__)
 548         int size, i;
 549         const uint32_t *bios;
 550         struct device_node *dn = pci_device_to_OF_node(dev->pdev);
 551         if (!dn) {
 552                 NV_INFO(dev, "Unable to get the OF node\n");
 553                 return;
 554         }
 555
 556         bios = of_get_property(dn, "NVDA,BMP", &size);
 557         if (bios) {
 558                 for (i = 0; i < size; i += 4)
 559                         nv_wi32(dev, i, bios[i/4]);
 560                 NV_INFO(dev, "OF bios successfully copied (%d bytes)\n", size);
 561         } else {
 562                 NV_INFO(dev, "Unable to get the OF bios\n");
 563         }
 564 #endif
 565 }
 566
 567 int nouveau_load(struct drm_device *dev, unsigned long flags)
 568 {
 569         struct drm_nouveau_private *dev_priv;
 570         uint32_t reg0;
 571         resource_size_t mmio_start_offs;
 572
 573         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 574         if (!dev_priv)
 575                 return -ENOMEM;
 576         dev->dev_private = dev_priv;
 577         dev_priv->dev = dev;
 578
 579         dev_priv->flags = flags & NOUVEAU_FLAGS;
 580         dev_priv->init_state = NOUVEAU_CARD_INIT_DOWN;
 581
 582         NV_DEBUG(dev, "vendor: 0x%X device: 0x%X class: 0x%X\n",
 583                  dev->pci_vendor, dev->pci_device, dev->pdev->class);
 584
 585         dev_priv->acpi_dsm = nouveau_dsm_probe(dev);
 586
 587         if (dev_priv->acpi_dsm)
 588                 nouveau_hybrid_setup(dev);
 589
 590         dev_priv->wq = create_workqueue("nouveau");
 591         if (!dev_priv->wq)
 592                 return -EINVAL;
 593
 594         /* resource 0 is mmio regs */
 595         /* resource 1 is linear FB */
 596         /* resource 2 is RAMIN (mmio regs + 0x1000000) */
 597         /* resource 6 is bios */
 598
 599         /* map the mmio regs */
 600         mmio_start_offs = pci_resource_start(dev->pdev, 0);
 601         dev_priv->mmio = ioremap(mmio_start_offs, 0x00800000);
 602         if (!dev_priv->mmio) {
 603                 NV_ERROR(dev, "Unable to initialize the mmio mapping. "
 604                          "Please report your setup to " DRIVER_EMAIL "\n");
 605                 return -EINVAL;
 606         }
 607         NV_DEBUG(dev, "regs mapped ok at 0x%llx\n",
 608                                         (unsigned long long)mmio_start_offs);
 609
 610 #ifdef __BIG_ENDIAN
 611         /* Put the card in BE mode if it's not */
 612         if (nv_rd32(dev, NV03_PMC_BOOT_1))
 613                 nv_wr32(dev, NV03_PMC_BOOT_1, 0x00000001);
 614
 615         DRM_MEMORYBARRIER();
 616 #endif
 617
 618         /* Time to determine the card architecture */
 619         reg0 = nv_rd32(dev, NV03_PMC_BOOT_0);
 620
 621         /* We're dealing with >=NV10 */
 622         if ((reg0 & 0x0f000000) > 0) {
 623                 /* Bit 27-20 contain the architecture in hex */
 624                 dev_priv->chipset = (reg0 & 0xff00000) >> 20;
 625         /* NV04 or NV05 */
 626         } else if ((reg0 & 0xff00fff0) == 0x20004000) {
 627                 dev_priv->chipset = 0x04;
 628         } else
 629                 dev_priv->chipset = 0xff;
 630
 631         switch (dev_priv->chipset & 0xf0) {
 632         case 0x00:
 633         case 0x10:
 634         case 0x20:
 635         case 0x30:
 636                 dev_priv->card_type = dev_priv->chipset & 0xf0;
 637                 break;
 638         case 0x40:
 639         case 0x60:
 640                 dev_priv->card_type = NV_40;
 641                 break;
 642         case 0x50:
 643         case 0x80:
 644         case 0x90:
 645         case 0xa0:
 646                 dev_priv->card_type = NV_50;
 647                 break;
 648         default:
 649                 NV_INFO(dev, "Unsupported chipset 0x%08x\n", reg0);
 650                 return -EINVAL;
 651         }
 652
 653         NV_INFO(dev, "Detected an NV%2x generation card (0x%08x)\n",
 654                 dev_priv->card_type, reg0);
 655
 656         /* map larger RAMIN aperture on NV40 cards */
 657         dev_priv->ramin  = NULL;
 658         if (dev_priv->card_type >= NV_40) {
 659                 int ramin_bar = 2;
 660                 if (pci_resource_len(dev->pdev, ramin_bar) == 0)
 661                         ramin_bar = 3;
 662
 663                 dev_priv->ramin_size = pci_resource_len(dev->pdev, ramin_bar);
 664                 dev_priv->ramin = ioremap(
 665                                 pci_resource_start(dev->pdev, ramin_bar),
 666                                 dev_priv->ramin_size);
 667                 if (!dev_priv->ramin) {
 668                         NV_ERROR(dev, "Failed to init RAMIN mapping, "
 669                                       "limited instance memory available\n");
 670                 }
 671         }
 672
 673         /* On older cards (or if the above failed), create a map covering
 674          * the BAR0 PRAMIN aperture */
 675         if (!dev_priv->ramin) {
 676                 dev_priv->ramin_size = 1 * 1024 * 1024;
 677                 dev_priv->ramin = ioremap(mmio_start_offs + NV_RAMIN,
 678                                                         dev_priv->ramin_size);
 679                 if (!dev_priv->ramin) {
 680                         NV_ERROR(dev, "Failed to map BAR0 PRAMIN.\n");
 681                         return -ENOMEM;
 682                 }
 683         }
 684
 685         nouveau_OF_copy_vbios_to_ramin(dev);
 686
 687         /* Special flags */
 688         if (dev->pci_device == 0x01a0)
 689                 dev_priv->flags |= NV_NFORCE;
 690         else if (dev->pci_device == 0x01f0)
 691                 dev_priv->flags |= NV_NFORCE2;
 692
 693         /* For kernel modesetting, init card now and bring up fbcon */
 694         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 695                 int ret = nouveau_card_init(dev);
 696                 if (ret)
 697                         return ret;
 698         }
 699
 700         return 0;
 701 }
 702
 703 static void nouveau_close(struct drm_device *dev)
 704 {
 705         struct drm_nouveau_private *dev_priv = dev->dev_private;
 706
 707         /* In the case of an error dev_priv may not be be allocated yet */
 708         if (dev_priv && dev_priv->card_type)
 709                 nouveau_card_takedown(dev);
 710 }
 711
 712 /* KMS: we need mmio at load time, not when the first drm client opens. */
 713 void nouveau_lastclose(struct drm_device *dev)
 714 {
 715         if (drm_core_check_feature(dev, DRIVER_MODESET))
 716                 return;
 717
 718         nouveau_close(dev);
 719 }
 720
 721 int nouveau_unload(struct drm_device *dev)
 722 {
 723         struct drm_nouveau_private *dev_priv = dev->dev_private;
 724
 725         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 726                 if (dev_priv->card_type >= NV_50)
 727                         nv50_display_destroy(dev);
 728                 else
 729                         nv04_display_destroy(dev);
 730                 nouveau_close(dev);
 731         }
 732
 733         iounmap(dev_priv->mmio);
 734         iounmap(dev_priv->ramin);
 735
 736         kfree(dev_priv);
 737         dev->dev_private = NULL;
 738         return 0;
 739 }
 740
 741 int
 742 nouveau_ioctl_card_init(struct drm_device *dev, void *data,
 743                         struct drm_file *file_priv)
 744 {
 745         return nouveau_card_init(dev);
 746 }
 747
 748 int nouveau_ioctl_getparam(struct drm_device *dev, void *data,
 749                                                 struct drm_file *file_priv)
 750 {
 751         struct drm_nouveau_private *dev_priv = dev->dev_private;
 752         struct drm_nouveau_getparam *getparam = data;
 753
 754         NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 755
 756         switch (getparam->param) {
 757         case NOUVEAU_GETPARAM_CHIPSET_ID:
 758                 getparam->value = dev_priv->chipset;
 759                 break;
 760         case NOUVEAU_GETPARAM_PCI_VENDOR:
 761                 getparam->value = dev->pci_vendor;
 762                 break;
 763         case NOUVEAU_GETPARAM_PCI_DEVICE:
 764                 getparam->value = dev->pci_device;
 765                 break;
 766         case NOUVEAU_GETPARAM_BUS_TYPE:
 767                 if (drm_device_is_agp(dev))
 768                         getparam->value = NV_AGP;
 769                 else if (drm_device_is_pcie(dev))
 770                         getparam->value = NV_PCIE;
 771                 else
 772                         getparam->value = NV_PCI;
 773                 break;
 774         case NOUVEAU_GETPARAM_FB_PHYSICAL:
 775                 getparam->value = dev_priv->fb_phys;
 776                 break;
 777         case NOUVEAU_GETPARAM_AGP_PHYSICAL:
 778                 getparam->value = dev_priv->gart_info.aper_base;
 779                 break;
 780         case NOUVEAU_GETPARAM_PCI_PHYSICAL:
 781                 if (dev->sg) {
 782                         getparam->value = (unsigned long)dev->sg->virtual;
 783                 } else {
 784                         NV_ERROR(dev, "Requested PCIGART address, "
 785                                         "while no PCIGART was created\n");
 786                         return -EINVAL;
 787                 }
 788                 break;
 789         case NOUVEAU_GETPARAM_FB_SIZE:
 790                 getparam->value = dev_priv->fb_available_size;
 791                 break;
 792         case NOUVEAU_GETPARAM_AGP_SIZE:
 793                 getparam->value = dev_priv->gart_info.aper_size;
 794                 break;
 795         case NOUVEAU_GETPARAM_VM_VRAM_BASE:
 796                 getparam->value = dev_priv->vm_vram_base;
 797                 break;
 798         default:
 799                 NV_ERROR(dev, "unknown parameter %lld\n", getparam->param);
 800                 return -EINVAL;
 801         }
 802
 803         return 0;
 804 }
 805
 806 int
 807 nouveau_ioctl_setparam(struct drm_device *dev, void *data,
 808                        struct drm_file *file_priv)
 809 {
 810         struct drm_nouveau_setparam *setparam = data;
 811
 812         NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 813
 814         switch (setparam->param) {
 815         default:
 816                 NV_ERROR(dev, "unknown parameter %lld\n", setparam->param);
 817                 return -EINVAL;
 818         }
 819
 820         return 0;
 821 }
 822
 823 /* Wait until (value(reg) & mask) == val, up until timeout has hit */
 824 bool nouveau_wait_until(struct drm_device *dev, uint64_t timeout,
 825                         uint32_t reg, uint32_t mask, uint32_t val)
 826 {
 827         struct drm_nouveau_private *dev_priv = dev->dev_private;
 828         struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
 829         uint64_t start = ptimer->read(dev);
 830
 831         do {
 832                 if ((nv_rd32(dev, reg) & mask) == val)
 833                         return true;
 834         } while (ptimer->read(dev) - start < timeout);
 835
 836         return false;
 837 }
 838
 839 /* Waits for PGRAPH to go completely idle */
 840 bool nouveau_wait_for_idle(struct drm_device *dev)
 841 {
 842         if (!nv_wait(NV04_PGRAPH_STATUS, 0xffffffff, 0x00000000)) {
 843                 NV_ERROR(dev, "PGRAPH idle timed out with status 0x%08x\n",
 844                          nv_rd32(dev, NV04_PGRAPH_STATUS));
 845                 return false;
 846         }
 847
 848         return true;
 849 }
 850