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 <linux/slab.h>
  28 #include "drmP.h"
  29 #include "drm.h"
  30 #include "drm_sarea.h"
  31 #include "drm_crtc_helper.h"
  32 #include <linux/vgaarb.h>
  33 #include <linux/vga_switcheroo.h>
  34
  35 #include "nouveau_drv.h"
  36 #include "nouveau_drm.h"
  37 #include "nouveau_fbcon.h"
  38 #include "nv50_display.h"
  39
  40 static void nouveau_stub_takedown(struct drm_device *dev) {}
  41
  42 static int nouveau_init_engine_ptrs(struct drm_device *dev)
  43 {
  44         struct drm_nouveau_private *dev_priv = dev->dev_private;
  45         struct nouveau_engine *engine = &dev_priv->engine;
  46
  47         switch (dev_priv->chipset & 0xf0) {
  48         case 0x00:
  49                 engine->instmem.init            = nv04_instmem_init;
  50                 engine->instmem.takedown        = nv04_instmem_takedown;
  51                 engine->instmem.suspend         = nv04_instmem_suspend;
  52                 engine->instmem.resume          = nv04_instmem_resume;
  53                 engine->instmem.populate        = nv04_instmem_populate;
  54                 engine->instmem.clear           = nv04_instmem_clear;
  55                 engine->instmem.bind            = nv04_instmem_bind;
  56                 engine->instmem.unbind          = nv04_instmem_unbind;
  57                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
  58                 engine->instmem.finish_access   = nv04_instmem_finish_access;
  59                 engine->mc.init                 = nv04_mc_init;
  60                 engine->mc.takedown             = nv04_mc_takedown;
  61                 engine->timer.init              = nv04_timer_init;
  62                 engine->timer.read              = nv04_timer_read;
  63                 engine->timer.takedown          = nv04_timer_takedown;
  64                 engine->fb.init                 = nv04_fb_init;
  65                 engine->fb.takedown             = nv04_fb_takedown;
  66                 engine->graph.grclass           = nv04_graph_grclass;
  67                 engine->graph.init              = nv04_graph_init;
  68                 engine->graph.takedown          = nv04_graph_takedown;
  69                 engine->graph.fifo_access       = nv04_graph_fifo_access;
  70                 engine->graph.channel           = nv04_graph_channel;
  71                 engine->graph.create_context    = nv04_graph_create_context;
  72                 engine->graph.destroy_context   = nv04_graph_destroy_context;
  73                 engine->graph.load_context      = nv04_graph_load_context;
  74                 engine->graph.unload_context    = nv04_graph_unload_context;
  75                 engine->fifo.channels           = 16;
  76                 engine->fifo.init               = nv04_fifo_init;
  77                 engine->fifo.takedown           = nouveau_stub_takedown;
  78                 engine->fifo.disable            = nv04_fifo_disable;
  79                 engine->fifo.enable             = nv04_fifo_enable;
  80                 engine->fifo.reassign           = nv04_fifo_reassign;
  81                 engine->fifo.cache_flush        = nv04_fifo_cache_flush;
  82                 engine->fifo.cache_pull         = nv04_fifo_cache_pull;
  83                 engine->fifo.channel_id         = nv04_fifo_channel_id;
  84                 engine->fifo.create_context     = nv04_fifo_create_context;
  85                 engine->fifo.destroy_context    = nv04_fifo_destroy_context;
  86                 engine->fifo.load_context       = nv04_fifo_load_context;
  87                 engine->fifo.unload_context     = nv04_fifo_unload_context;
  88                 break;
  89         case 0x10:
  90                 engine->instmem.init            = nv04_instmem_init;
  91                 engine->instmem.takedown        = nv04_instmem_takedown;
  92                 engine->instmem.suspend         = nv04_instmem_suspend;
  93                 engine->instmem.resume          = nv04_instmem_resume;
  94                 engine->instmem.populate        = nv04_instmem_populate;
  95                 engine->instmem.clear           = nv04_instmem_clear;
  96                 engine->instmem.bind            = nv04_instmem_bind;
  97                 engine->instmem.unbind          = nv04_instmem_unbind;
  98                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
  99                 engine->instmem.finish_access   = nv04_instmem_finish_access;
 100                 engine->mc.init                 = nv04_mc_init;
 101                 engine->mc.takedown             = nv04_mc_takedown;
 102                 engine->timer.init              = nv04_timer_init;
 103                 engine->timer.read              = nv04_timer_read;
 104                 engine->timer.takedown          = nv04_timer_takedown;
 105                 engine->fb.init                 = nv10_fb_init;
 106                 engine->fb.takedown             = nv10_fb_takedown;
 107                 engine->fb.set_region_tiling    = nv10_fb_set_region_tiling;
 108                 engine->graph.grclass           = nv10_graph_grclass;
 109                 engine->graph.init              = nv10_graph_init;
 110                 engine->graph.takedown          = nv10_graph_takedown;
 111                 engine->graph.channel           = nv10_graph_channel;
 112                 engine->graph.create_context    = nv10_graph_create_context;
 113                 engine->graph.destroy_context   = nv10_graph_destroy_context;
 114                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 115                 engine->graph.load_context      = nv10_graph_load_context;
 116                 engine->graph.unload_context    = nv10_graph_unload_context;
 117                 engine->graph.set_region_tiling = nv10_graph_set_region_tiling;
 118                 engine->fifo.channels           = 32;
 119                 engine->fifo.init               = nv10_fifo_init;
 120                 engine->fifo.takedown           = nouveau_stub_takedown;
 121                 engine->fifo.disable            = nv04_fifo_disable;
 122                 engine->fifo.enable             = nv04_fifo_enable;
 123                 engine->fifo.reassign           = nv04_fifo_reassign;
 124                 engine->fifo.cache_flush        = nv04_fifo_cache_flush;
 125                 engine->fifo.cache_pull         = nv04_fifo_cache_pull;
 126                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 127                 engine->fifo.create_context     = nv10_fifo_create_context;
 128                 engine->fifo.destroy_context    = nv10_fifo_destroy_context;
 129                 engine->fifo.load_context       = nv10_fifo_load_context;
 130                 engine->fifo.unload_context     = nv10_fifo_unload_context;
 131                 break;
 132         case 0x20:
 133                 engine->instmem.init            = nv04_instmem_init;
 134                 engine->instmem.takedown        = nv04_instmem_takedown;
 135                 engine->instmem.suspend         = nv04_instmem_suspend;
 136                 engine->instmem.resume          = nv04_instmem_resume;
 137                 engine->instmem.populate        = nv04_instmem_populate;
 138                 engine->instmem.clear           = nv04_instmem_clear;
 139                 engine->instmem.bind            = nv04_instmem_bind;
 140                 engine->instmem.unbind          = nv04_instmem_unbind;
 141                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
 142                 engine->instmem.finish_access   = nv04_instmem_finish_access;
 143                 engine->mc.init                 = nv04_mc_init;
 144                 engine->mc.takedown             = nv04_mc_takedown;
 145                 engine->timer.init              = nv04_timer_init;
 146                 engine->timer.read              = nv04_timer_read;
 147                 engine->timer.takedown          = nv04_timer_takedown;
 148                 engine->fb.init                 = nv10_fb_init;
 149                 engine->fb.takedown             = nv10_fb_takedown;
 150                 engine->fb.set_region_tiling    = nv10_fb_set_region_tiling;
 151                 engine->graph.grclass           = nv20_graph_grclass;
 152                 engine->graph.init              = nv20_graph_init;
 153                 engine->graph.takedown          = nv20_graph_takedown;
 154                 engine->graph.channel           = nv10_graph_channel;
 155                 engine->graph.create_context    = nv20_graph_create_context;
 156                 engine->graph.destroy_context   = nv20_graph_destroy_context;
 157                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 158                 engine->graph.load_context      = nv20_graph_load_context;
 159                 engine->graph.unload_context    = nv20_graph_unload_context;
 160                 engine->graph.set_region_tiling = nv20_graph_set_region_tiling;
 161                 engine->fifo.channels           = 32;
 162                 engine->fifo.init               = nv10_fifo_init;
 163                 engine->fifo.takedown           = nouveau_stub_takedown;
 164                 engine->fifo.disable            = nv04_fifo_disable;
 165                 engine->fifo.enable             = nv04_fifo_enable;
 166                 engine->fifo.reassign           = nv04_fifo_reassign;
 167                 engine->fifo.cache_flush        = nv04_fifo_cache_flush;
 168                 engine->fifo.cache_pull         = nv04_fifo_cache_pull;
 169                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 170                 engine->fifo.create_context     = nv10_fifo_create_context;
 171                 engine->fifo.destroy_context    = nv10_fifo_destroy_context;
 172                 engine->fifo.load_context       = nv10_fifo_load_context;
 173                 engine->fifo.unload_context     = nv10_fifo_unload_context;
 174                 break;
 175         case 0x30:
 176                 engine->instmem.init            = nv04_instmem_init;
 177                 engine->instmem.takedown        = nv04_instmem_takedown;
 178                 engine->instmem.suspend         = nv04_instmem_suspend;
 179                 engine->instmem.resume          = nv04_instmem_resume;
 180                 engine->instmem.populate        = nv04_instmem_populate;
 181                 engine->instmem.clear           = nv04_instmem_clear;
 182                 engine->instmem.bind            = nv04_instmem_bind;
 183                 engine->instmem.unbind          = nv04_instmem_unbind;
 184                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
 185                 engine->instmem.finish_access   = nv04_instmem_finish_access;
 186                 engine->mc.init                 = nv04_mc_init;
 187                 engine->mc.takedown             = nv04_mc_takedown;
 188                 engine->timer.init              = nv04_timer_init;
 189                 engine->timer.read              = nv04_timer_read;
 190                 engine->timer.takedown          = nv04_timer_takedown;
 191                 engine->fb.init                 = nv10_fb_init;
 192                 engine->fb.takedown             = nv10_fb_takedown;
 193                 engine->fb.set_region_tiling    = nv10_fb_set_region_tiling;
 194                 engine->graph.grclass           = nv30_graph_grclass;
 195                 engine->graph.init              = nv30_graph_init;
 196                 engine->graph.takedown          = nv20_graph_takedown;
 197                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 198                 engine->graph.channel           = nv10_graph_channel;
 199                 engine->graph.create_context    = nv20_graph_create_context;
 200                 engine->graph.destroy_context   = nv20_graph_destroy_context;
 201                 engine->graph.load_context      = nv20_graph_load_context;
 202                 engine->graph.unload_context    = nv20_graph_unload_context;
 203                 engine->graph.set_region_tiling = nv20_graph_set_region_tiling;
 204                 engine->fifo.channels           = 32;
 205                 engine->fifo.init               = nv10_fifo_init;
 206                 engine->fifo.takedown           = nouveau_stub_takedown;
 207                 engine->fifo.disable            = nv04_fifo_disable;
 208                 engine->fifo.enable             = nv04_fifo_enable;
 209                 engine->fifo.reassign           = nv04_fifo_reassign;
 210                 engine->fifo.cache_flush        = nv04_fifo_cache_flush;
 211                 engine->fifo.cache_pull         = nv04_fifo_cache_pull;
 212                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 213                 engine->fifo.create_context     = nv10_fifo_create_context;
 214                 engine->fifo.destroy_context    = nv10_fifo_destroy_context;
 215                 engine->fifo.load_context       = nv10_fifo_load_context;
 216                 engine->fifo.unload_context     = nv10_fifo_unload_context;
 217                 break;
 218         case 0x40:
 219         case 0x60:
 220                 engine->instmem.init            = nv04_instmem_init;
 221                 engine->instmem.takedown        = nv04_instmem_takedown;
 222                 engine->instmem.suspend         = nv04_instmem_suspend;
 223                 engine->instmem.resume          = nv04_instmem_resume;
 224                 engine->instmem.populate        = nv04_instmem_populate;
 225                 engine->instmem.clear           = nv04_instmem_clear;
 226                 engine->instmem.bind            = nv04_instmem_bind;
 227                 engine->instmem.unbind          = nv04_instmem_unbind;
 228                 engine->instmem.prepare_access  = nv04_instmem_prepare_access;
 229                 engine->instmem.finish_access   = nv04_instmem_finish_access;
 230                 engine->mc.init                 = nv40_mc_init;
 231                 engine->mc.takedown             = nv40_mc_takedown;
 232                 engine->timer.init              = nv04_timer_init;
 233                 engine->timer.read              = nv04_timer_read;
 234                 engine->timer.takedown          = nv04_timer_takedown;
 235                 engine->fb.init                 = nv40_fb_init;
 236                 engine->fb.takedown             = nv40_fb_takedown;
 237                 engine->fb.set_region_tiling    = nv40_fb_set_region_tiling;
 238                 engine->graph.grclass           = nv40_graph_grclass;
 239                 engine->graph.init              = nv40_graph_init;
 240                 engine->graph.takedown          = nv40_graph_takedown;
 241                 engine->graph.fifo_access       = nv04_graph_fifo_access;
 242                 engine->graph.channel           = nv40_graph_channel;
 243                 engine->graph.create_context    = nv40_graph_create_context;
 244                 engine->graph.destroy_context   = nv40_graph_destroy_context;
 245                 engine->graph.load_context      = nv40_graph_load_context;
 246                 engine->graph.unload_context    = nv40_graph_unload_context;
 247                 engine->graph.set_region_tiling = nv40_graph_set_region_tiling;
 248                 engine->fifo.channels           = 32;
 249                 engine->fifo.init               = nv40_fifo_init;
 250                 engine->fifo.takedown           = nouveau_stub_takedown;
 251                 engine->fifo.disable            = nv04_fifo_disable;
 252                 engine->fifo.enable             = nv04_fifo_enable;
 253                 engine->fifo.reassign           = nv04_fifo_reassign;
 254                 engine->fifo.cache_flush        = nv04_fifo_cache_flush;
 255                 engine->fifo.cache_pull         = nv04_fifo_cache_pull;
 256                 engine->fifo.channel_id         = nv10_fifo_channel_id;
 257                 engine->fifo.create_context     = nv40_fifo_create_context;
 258                 engine->fifo.destroy_context    = nv40_fifo_destroy_context;
 259                 engine->fifo.load_context       = nv40_fifo_load_context;
 260                 engine->fifo.unload_context     = nv40_fifo_unload_context;
 261                 break;
 262         case 0x50:
 263         case 0x80: /* gotta love NVIDIA's consistency.. */
 264         case 0x90:
 265         case 0xA0:
 266                 engine->instmem.init            = nv50_instmem_init;
 267                 engine->instmem.takedown        = nv50_instmem_takedown;
 268                 engine->instmem.suspend         = nv50_instmem_suspend;
 269                 engine->instmem.resume          = nv50_instmem_resume;
 270                 engine->instmem.populate        = nv50_instmem_populate;
 271                 engine->instmem.clear           = nv50_instmem_clear;
 272                 engine->instmem.bind            = nv50_instmem_bind;
 273                 engine->instmem.unbind          = nv50_instmem_unbind;
 274                 engine->instmem.prepare_access  = nv50_instmem_prepare_access;
 275                 engine->instmem.finish_access   = nv50_instmem_finish_access;
 276                 engine->mc.init                 = nv50_mc_init;
 277                 engine->mc.takedown             = nv50_mc_takedown;
 278                 engine->timer.init              = nv04_timer_init;
 279                 engine->timer.read              = nv04_timer_read;
 280                 engine->timer.takedown          = nv04_timer_takedown;
 281                 engine->fb.init                 = nv50_fb_init;
 282                 engine->fb.takedown             = nv50_fb_takedown;
 283                 engine->graph.grclass           = nv50_graph_grclass;
 284                 engine->graph.init              = nv50_graph_init;
 285                 engine->graph.takedown          = nv50_graph_takedown;
 286                 engine->graph.fifo_access       = nv50_graph_fifo_access;
 287                 engine->graph.channel           = nv50_graph_channel;
 288                 engine->graph.create_context    = nv50_graph_create_context;
 289                 engine->graph.destroy_context   = nv50_graph_destroy_context;
 290                 engine->graph.load_context      = nv50_graph_load_context;
 291                 engine->graph.unload_context    = nv50_graph_unload_context;
 292                 engine->fifo.channels           = 128;
 293                 engine->fifo.init               = nv50_fifo_init;
 294                 engine->fifo.takedown           = nv50_fifo_takedown;
 295                 engine->fifo.disable            = nv04_fifo_disable;
 296                 engine->fifo.enable             = nv04_fifo_enable;
 297                 engine->fifo.reassign           = nv04_fifo_reassign;
 298                 engine->fifo.channel_id         = nv50_fifo_channel_id;
 299                 engine->fifo.create_context     = nv50_fifo_create_context;
 300                 engine->fifo.destroy_context    = nv50_fifo_destroy_context;
 301                 engine->fifo.load_context       = nv50_fifo_load_context;
 302                 engine->fifo.unload_context     = nv50_fifo_unload_context;
 303                 break;
 304         default:
 305                 NV_ERROR(dev, "NV%02x unsupported\n", dev_priv->chipset);
 306                 return 1;
 307         }
 308
 309         return 0;
 310 }
 311
 312 static unsigned int
 313 nouveau_vga_set_decode(void *priv, bool state)
 314 {
 315         struct drm_device *dev = priv;
 316         struct drm_nouveau_private *dev_priv = dev->dev_private;
 317
 318         if (dev_priv->chipset >= 0x40)
 319                 nv_wr32(dev, 0x88054, state);
 320         else
 321                 nv_wr32(dev, 0x1854, state);
 322
 323         if (state)
 324                 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
 325                        VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 326         else
 327                 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 328 }
 329
 330 static int
 331 nouveau_card_init_channel(struct drm_device *dev)
 332 {
 333         struct drm_nouveau_private *dev_priv = dev->dev_private;
 334         struct nouveau_gpuobj *gpuobj;
 335         int ret;
 336
 337         ret = nouveau_channel_alloc(dev, &dev_priv->channel,
 338                                     (struct drm_file *)-2,
 339                                     NvDmaFB, NvDmaTT);
 340         if (ret)
 341                 return ret;
 342
 343         gpuobj = NULL;
 344         ret = nouveau_gpuobj_dma_new(dev_priv->channel, NV_CLASS_DMA_IN_MEMORY,
 345                                      0, dev_priv->vram_size,
 346                                      NV_DMA_ACCESS_RW, NV_DMA_TARGET_VIDMEM,
 347                                      &gpuobj);
 348         if (ret)
 349                 goto out_err;
 350
 351         ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaVRAM,
 352                                      gpuobj, NULL);
 353         if (ret)
 354                 goto out_err;
 355
 356         gpuobj = NULL;
 357         ret = nouveau_gpuobj_gart_dma_new(dev_priv->channel, 0,
 358                                           dev_priv->gart_info.aper_size,
 359                                           NV_DMA_ACCESS_RW, &gpuobj, NULL);
 360         if (ret)
 361                 goto out_err;
 362
 363         ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaGART,
 364                                      gpuobj, NULL);
 365         if (ret)
 366                 goto out_err;
 367
 368         return 0;
 369 out_err:
 370         nouveau_gpuobj_del(dev, &gpuobj);
 371         nouveau_channel_free(dev_priv->channel);
 372         dev_priv->channel = NULL;
 373         return ret;
 374 }
 375
 376 static void nouveau_switcheroo_set_state(struct pci_dev *pdev,
 377                                          enum vga_switcheroo_state state)
 378 {
 379         pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
 380         if (state == VGA_SWITCHEROO_ON) {
 381                 printk(KERN_ERR "VGA switcheroo: switched nouveau on\n");
 382                 nouveau_pci_resume(pdev);
 383         } else {
 384                 printk(KERN_ERR "VGA switcheroo: switched nouveau off\n");
 385                 nouveau_pci_suspend(pdev, pmm);
 386         }
 387 }
 388
 389 static bool nouveau_switcheroo_can_switch(struct pci_dev *pdev)
 390 {
 391         struct drm_device *dev = pci_get_drvdata(pdev);
 392         bool can_switch;
 393
 394         spin_lock(&dev->count_lock);
 395         can_switch = (dev->open_count == 0);
 396         spin_unlock(&dev->count_lock);
 397         return can_switch;
 398 }
 399
 400 int
 401 nouveau_card_init(struct drm_device *dev)
 402 {
 403         struct drm_nouveau_private *dev_priv = dev->dev_private;
 404         struct nouveau_engine *engine;
 405         int ret;
 406
 407         NV_DEBUG(dev, "prev state = %d\n", dev_priv->init_state);
 408
 409         if (dev_priv->init_state == NOUVEAU_CARD_INIT_DONE)
 410                 return 0;
 411
 412         vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode);
 413         vga_switcheroo_register_client(dev->pdev, nouveau_switcheroo_set_state,
 414                                        nouveau_switcheroo_can_switch);
 415
 416         /* Initialise internal driver API hooks */
 417         ret = nouveau_init_engine_ptrs(dev);
 418         if (ret)
 419                 goto out;
 420         engine = &dev_priv->engine;
 421         dev_priv->init_state = NOUVEAU_CARD_INIT_FAILED;
 422         spin_lock_init(&dev_priv->context_switch_lock);
 423
 424         /* Parse BIOS tables / Run init tables if card not POSTed */
 425         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 426                 ret = nouveau_bios_init(dev);
 427                 if (ret)
 428                         goto out;
 429         }
 430
 431         ret = nouveau_mem_detect(dev);
 432         if (ret)
 433                 goto out_bios;
 434
 435         ret = nouveau_gpuobj_early_init(dev);
 436         if (ret)
 437                 goto out_bios;
 438
 439         /* Initialise instance memory, must happen before mem_init so we
 440          * know exactly how much VRAM we're able to use for "normal"
 441          * purposes.
 442          */
 443         ret = engine->instmem.init(dev);
 444         if (ret)
 445                 goto out_gpuobj_early;
 446
 447         /* Setup the memory manager */
 448         ret = nouveau_mem_init(dev);
 449         if (ret)
 450                 goto out_instmem;
 451
 452         ret = nouveau_gpuobj_init(dev);
 453         if (ret)
 454                 goto out_mem;
 455
 456         /* PMC */
 457         ret = engine->mc.init(dev);
 458         if (ret)
 459                 goto out_gpuobj;
 460
 461         /* PTIMER */
 462         ret = engine->timer.init(dev);
 463         if (ret)
 464                 goto out_mc;
 465
 466         /* PFB */
 467         ret = engine->fb.init(dev);
 468         if (ret)
 469                 goto out_timer;
 470
 471         if (nouveau_noaccel)
 472                 engine->graph.accel_blocked = true;
 473         else {
 474                 /* PGRAPH */
 475                 ret = engine->graph.init(dev);
 476                 if (ret)
 477                         goto out_fb;
 478
 479                 /* PFIFO */
 480                 ret = engine->fifo.init(dev);
 481                 if (ret)
 482                         goto out_graph;
 483         }
 484
 485         /* this call irq_preinstall, register irq handler and
 486          * call irq_postinstall
 487          */
 488         ret = drm_irq_install(dev);
 489         if (ret)
 490                 goto out_fifo;
 491
 492         ret = drm_vblank_init(dev, 0);
 493         if (ret)
 494                 goto out_irq;
 495
 496         /* what about PVIDEO/PCRTC/PRAMDAC etc? */
 497
 498         if (!engine->graph.accel_blocked) {
 499                 ret = nouveau_card_init_channel(dev);
 500                 if (ret)
 501                         goto out_irq;
 502         }
 503
 504         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 505                 if (dev_priv->card_type >= NV_50)
 506                         ret = nv50_display_create(dev);
 507                 else
 508                         ret = nv04_display_create(dev);
 509                 if (ret)
 510                         goto out_channel;
 511         }
 512
 513         ret = nouveau_backlight_init(dev);
 514         if (ret)
 515                 NV_ERROR(dev, "Error %d registering backlight\n", ret);
 516
 517         dev_priv->init_state = NOUVEAU_CARD_INIT_DONE;
 518
 519         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 520                 nouveau_fbcon_init(dev);
 521                 drm_kms_helper_poll_init(dev);
 522         }
 523
 524         return 0;
 525
 526 out_channel:
 527         if (dev_priv->channel) {
 528                 nouveau_channel_free(dev_priv->channel);
 529                 dev_priv->channel = NULL;
 530         }
 531 out_irq:
 532         drm_irq_uninstall(dev);
 533 out_fifo:
 534         if (!nouveau_noaccel)
 535                 engine->fifo.takedown(dev);
 536 out_graph:
 537         if (!nouveau_noaccel)
 538                 engine->graph.takedown(dev);
 539 out_fb:
 540         engine->fb.takedown(dev);
 541 out_timer:
 542         engine->timer.takedown(dev);
 543 out_mc:
 544         engine->mc.takedown(dev);
 545 out_gpuobj:
 546         nouveau_gpuobj_takedown(dev);
 547 out_mem:
 548         nouveau_sgdma_takedown(dev);
 549         nouveau_mem_close(dev);
 550 out_instmem:
 551         engine->instmem.takedown(dev);
 552 out_gpuobj_early:
 553         nouveau_gpuobj_late_takedown(dev);
 554 out_bios:
 555         nouveau_bios_takedown(dev);
 556 out:
 557         vga_client_register(dev->pdev, NULL, NULL, NULL);
 558         return ret;
 559 }
 560
 561 static void nouveau_card_takedown(struct drm_device *dev)
 562 {
 563         struct drm_nouveau_private *dev_priv = dev->dev_private;
 564         struct nouveau_engine *engine = &dev_priv->engine;
 565
 566         NV_DEBUG(dev, "prev state = %d\n", dev_priv->init_state);
 567
 568         if (dev_priv->init_state != NOUVEAU_CARD_INIT_DOWN) {
 569
 570                 nouveau_backlight_exit(dev);
 571
 572                 if (dev_priv->channel) {
 573                         nouveau_channel_free(dev_priv->channel);
 574                         dev_priv->channel = NULL;
 575                 }
 576
 577                 if (!nouveau_noaccel) {
 578                         engine->fifo.takedown(dev);
 579                         engine->graph.takedown(dev);
 580                 }
 581                 engine->fb.takedown(dev);
 582                 engine->timer.takedown(dev);
 583                 engine->mc.takedown(dev);
 584
 585                 mutex_lock(&dev->struct_mutex);
 586                 ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM);
 587                 ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_TT);
 588                 mutex_unlock(&dev->struct_mutex);
 589                 nouveau_sgdma_takedown(dev);
 590
 591                 nouveau_gpuobj_takedown(dev);
 592                 nouveau_mem_close(dev);
 593                 engine->instmem.takedown(dev);
 594
 595                 if (drm_core_check_feature(dev, DRIVER_MODESET))
 596                         drm_irq_uninstall(dev);
 597
 598                 nouveau_gpuobj_late_takedown(dev);
 599                 nouveau_bios_takedown(dev);
 600
 601                 vga_client_register(dev->pdev, NULL, NULL, NULL);
 602
 603                 dev_priv->init_state = NOUVEAU_CARD_INIT_DOWN;
 604         }
 605 }
 606
 607 /* here a client dies, release the stuff that was allocated for its
 608  * file_priv */
 609 void nouveau_preclose(struct drm_device *dev, struct drm_file *file_priv)
 610 {
 611         nouveau_channel_cleanup(dev, file_priv);
 612 }
 613
 614 /* first module load, setup the mmio/fb mapping */
 615 /* KMS: we need mmio at load time, not when the first drm client opens. */
 616 int nouveau_firstopen(struct drm_device *dev)
 617 {
 618         return 0;
 619 }
 620
 621 /* if we have an OF card, copy vbios to RAMIN */
 622 static void nouveau_OF_copy_vbios_to_ramin(struct drm_device *dev)
 623 {
 624 #if defined(__powerpc__)
 625         int size, i;
 626         const uint32_t *bios;
 627         struct device_node *dn = pci_device_to_OF_node(dev->pdev);
 628         if (!dn) {
 629                 NV_INFO(dev, "Unable to get the OF node\n");
 630                 return;
 631         }
 632
 633         bios = of_get_property(dn, "NVDA,BMP", &size);
 634         if (bios) {
 635                 for (i = 0; i < size; i += 4)
 636                         nv_wi32(dev, i, bios[i/4]);
 637                 NV_INFO(dev, "OF bios successfully copied (%d bytes)\n", size);
 638         } else {
 639                 NV_INFO(dev, "Unable to get the OF bios\n");
 640         }
 641 #endif
 642 }
 643
 644 static struct apertures_struct *nouveau_get_apertures(struct drm_device *dev)
 645 {
 646         struct pci_dev *pdev = dev->pdev;
 647         struct apertures_struct *aper = alloc_apertures(3);
 648         if (!aper)
 649                 return NULL;
 650
 651         aper->ranges[0].base = pci_resource_start(pdev, 1);
 652         aper->ranges[0].size = pci_resource_len(pdev, 1);
 653         aper->count = 1;
 654
 655         if (pci_resource_len(pdev, 2)) {
 656                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 657                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 658                 aper->count++;
 659         }
 660
 661         if (pci_resource_len(pdev, 3)) {
 662                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 663                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 664                 aper->count++;
 665         }
 666
 667         return aper;
 668 }
 669
 670 static int nouveau_remove_conflicting_drivers(struct drm_device *dev)
 671 {
 672         struct drm_nouveau_private *dev_priv = dev->dev_private;
 673         bool primary = false;
 674         dev_priv->apertures = nouveau_get_apertures(dev);
 675         if (!dev_priv->apertures)
 676                 return -ENOMEM;
 677
 678 #ifdef CONFIG_X86
 679         primary = dev->pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 680 #endif
 681
 682         remove_conflicting_framebuffers(dev_priv->apertures, "nouveaufb", primary);
 683         return 0;
 684 }
 685
 686 int nouveau_load(struct drm_device *dev, unsigned long flags)
 687 {
 688         struct drm_nouveau_private *dev_priv;
 689         uint32_t reg0;
 690         resource_size_t mmio_start_offs;
 691
 692         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 693         if (!dev_priv)
 694                 return -ENOMEM;
 695         dev->dev_private = dev_priv;
 696         dev_priv->dev = dev;
 697
 698         dev_priv->flags = flags & NOUVEAU_FLAGS;
 699         dev_priv->init_state = NOUVEAU_CARD_INIT_DOWN;
 700
 701         NV_DEBUG(dev, "vendor: 0x%X device: 0x%X class: 0x%X\n",
 702                  dev->pci_vendor, dev->pci_device, dev->pdev->class);
 703
 704         dev_priv->wq = create_workqueue("nouveau");
 705         if (!dev_priv->wq)
 706                 return -EINVAL;
 707
 708         /* resource 0 is mmio regs */
 709         /* resource 1 is linear FB */
 710         /* resource 2 is RAMIN (mmio regs + 0x1000000) */
 711         /* resource 6 is bios */
 712
 713         /* map the mmio regs */
 714         mmio_start_offs = pci_resource_start(dev->pdev, 0);
 715         dev_priv->mmio = ioremap(mmio_start_offs, 0x00800000);
 716         if (!dev_priv->mmio) {
 717                 NV_ERROR(dev, "Unable to initialize the mmio mapping. "
 718                          "Please report your setup to " DRIVER_EMAIL "\n");
 719                 return -EINVAL;
 720         }
 721         NV_DEBUG(dev, "regs mapped ok at 0x%llx\n",
 722                                         (unsigned long long)mmio_start_offs);
 723
 724 #ifdef __BIG_ENDIAN
 725         /* Put the card in BE mode if it's not */
 726         if (nv_rd32(dev, NV03_PMC_BOOT_1))
 727                 nv_wr32(dev, NV03_PMC_BOOT_1, 0x00000001);
 728
 729         DRM_MEMORYBARRIER();
 730 #endif
 731
 732         /* Time to determine the card architecture */
 733         reg0 = nv_rd32(dev, NV03_PMC_BOOT_0);
 734
 735         /* We're dealing with >=NV10 */
 736         if ((reg0 & 0x0f000000) > 0) {
 737                 /* Bit 27-20 contain the architecture in hex */
 738                 dev_priv->chipset = (reg0 & 0xff00000) >> 20;
 739         /* NV04 or NV05 */
 740         } else if ((reg0 & 0xff00fff0) == 0x20004000) {
 741                 if (reg0 & 0x00f00000)
 742                         dev_priv->chipset = 0x05;
 743                 else
 744                         dev_priv->chipset = 0x04;
 745         } else
 746                 dev_priv->chipset = 0xff;
 747
 748         switch (dev_priv->chipset & 0xf0) {
 749         case 0x00:
 750         case 0x10:
 751         case 0x20:
 752         case 0x30:
 753                 dev_priv->card_type = dev_priv->chipset & 0xf0;
 754                 break;
 755         case 0x40:
 756         case 0x60:
 757                 dev_priv->card_type = NV_40;
 758                 break;
 759         case 0x50:
 760         case 0x80:
 761         case 0x90:
 762         case 0xa0:
 763                 dev_priv->card_type = NV_50;
 764                 break;
 765         default:
 766                 NV_INFO(dev, "Unsupported chipset 0x%08x\n", reg0);
 767                 return -EINVAL;
 768         }
 769
 770         NV_INFO(dev, "Detected an NV%2x generation card (0x%08x)\n",
 771                 dev_priv->card_type, reg0);
 772
 773         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 774                 int ret = nouveau_remove_conflicting_drivers(dev);
 775                 if (ret)
 776                         return ret;
 777         }
 778
 779         /* map larger RAMIN aperture on NV40 cards */
 780         dev_priv->ramin  = NULL;
 781         if (dev_priv->card_type >= NV_40) {
 782                 int ramin_bar = 2;
 783                 if (pci_resource_len(dev->pdev, ramin_bar) == 0)
 784                         ramin_bar = 3;
 785
 786                 dev_priv->ramin_size = pci_resource_len(dev->pdev, ramin_bar);
 787                 dev_priv->ramin = ioremap(
 788                                 pci_resource_start(dev->pdev, ramin_bar),
 789                                 dev_priv->ramin_size);
 790                 if (!dev_priv->ramin) {
 791                         NV_ERROR(dev, "Failed to init RAMIN mapping, "
 792                                       "limited instance memory available\n");
 793                 }
 794         }
 795
 796         /* On older cards (or if the above failed), create a map covering
 797          * the BAR0 PRAMIN aperture */
 798         if (!dev_priv->ramin) {
 799                 dev_priv->ramin_size = 1 * 1024 * 1024;
 800                 dev_priv->ramin = ioremap(mmio_start_offs + NV_RAMIN,
 801                                                         dev_priv->ramin_size);
 802                 if (!dev_priv->ramin) {
 803                         NV_ERROR(dev, "Failed to map BAR0 PRAMIN.\n");
 804                         return -ENOMEM;
 805                 }
 806         }
 807
 808         nouveau_OF_copy_vbios_to_ramin(dev);
 809
 810         /* Special flags */
 811         if (dev->pci_device == 0x01a0)
 812                 dev_priv->flags |= NV_NFORCE;
 813         else if (dev->pci_device == 0x01f0)
 814                 dev_priv->flags |= NV_NFORCE2;
 815
 816         /* For kernel modesetting, init card now and bring up fbcon */
 817         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 818                 int ret = nouveau_card_init(dev);
 819                 if (ret)
 820                         return ret;
 821         }
 822
 823         return 0;
 824 }
 825
 826 static void nouveau_close(struct drm_device *dev)
 827 {
 828         struct drm_nouveau_private *dev_priv = dev->dev_private;
 829
 830         /* In the case of an error dev_priv may not be allocated yet */
 831         if (dev_priv)
 832                 nouveau_card_takedown(dev);
 833 }
 834
 835 /* KMS: we need mmio at load time, not when the first drm client opens. */
 836 void nouveau_lastclose(struct drm_device *dev)
 837 {
 838         if (drm_core_check_feature(dev, DRIVER_MODESET))
 839                 return;
 840
 841         nouveau_close(dev);
 842 }
 843
 844 int nouveau_unload(struct drm_device *dev)
 845 {
 846         struct drm_nouveau_private *dev_priv = dev->dev_private;
 847
 848         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 849                 drm_kms_helper_poll_fini(dev);
 850                 nouveau_fbcon_fini(dev);
 851                 if (dev_priv->card_type >= NV_50)
 852                         nv50_display_destroy(dev);
 853                 else
 854                         nv04_display_destroy(dev);
 855                 nouveau_close(dev);
 856         }
 857
 858         iounmap(dev_priv->mmio);
 859         iounmap(dev_priv->ramin);
 860
 861         kfree(dev_priv);
 862         dev->dev_private = NULL;
 863         return 0;
 864 }
 865
 866 int nouveau_ioctl_getparam(struct drm_device *dev, void *data,
 867                                                 struct drm_file *file_priv)
 868 {
 869         struct drm_nouveau_private *dev_priv = dev->dev_private;
 870         struct drm_nouveau_getparam *getparam = data;
 871
 872         NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 873
 874         switch (getparam->param) {
 875         case NOUVEAU_GETPARAM_CHIPSET_ID:
 876                 getparam->value = dev_priv->chipset;
 877                 break;
 878         case NOUVEAU_GETPARAM_PCI_VENDOR:
 879                 getparam->value = dev->pci_vendor;
 880                 break;
 881         case NOUVEAU_GETPARAM_PCI_DEVICE:
 882                 getparam->value = dev->pci_device;
 883                 break;
 884         case NOUVEAU_GETPARAM_BUS_TYPE:
 885                 if (drm_device_is_agp(dev))
 886                         getparam->value = NV_AGP;
 887                 else if (drm_device_is_pcie(dev))
 888                         getparam->value = NV_PCIE;
 889                 else
 890                         getparam->value = NV_PCI;
 891                 break;
 892         case NOUVEAU_GETPARAM_FB_PHYSICAL:
 893                 getparam->value = dev_priv->fb_phys;
 894                 break;
 895         case NOUVEAU_GETPARAM_AGP_PHYSICAL:
 896                 getparam->value = dev_priv->gart_info.aper_base;
 897                 break;
 898         case NOUVEAU_GETPARAM_PCI_PHYSICAL:
 899                 if (dev->sg) {
 900                         getparam->value = (unsigned long)dev->sg->virtual;
 901                 } else {
 902                         NV_ERROR(dev, "Requested PCIGART address, "
 903                                         "while no PCIGART was created\n");
 904                         return -EINVAL;
 905                 }
 906                 break;
 907         case NOUVEAU_GETPARAM_FB_SIZE:
 908                 getparam->value = dev_priv->fb_available_size;
 909                 break;
 910         case NOUVEAU_GETPARAM_AGP_SIZE:
 911                 getparam->value = dev_priv->gart_info.aper_size;
 912                 break;
 913         case NOUVEAU_GETPARAM_VM_VRAM_BASE:
 914                 getparam->value = dev_priv->vm_vram_base;
 915                 break;
 916         case NOUVEAU_GETPARAM_GRAPH_UNITS:
 917                 /* NV40 and NV50 versions are quite different, but register
 918                  * address is the same. User is supposed to know the card
 919                  * family anyway... */
 920                 if (dev_priv->chipset >= 0x40) {
 921                         getparam->value = nv_rd32(dev, NV40_PMC_GRAPH_UNITS);
 922                         break;
 923                 }
 924                 /* FALLTHRU */
 925         default:
 926                 NV_ERROR(dev, "unknown parameter %lld\n", getparam->param);
 927                 return -EINVAL;
 928         }
 929
 930         return 0;
 931 }
 932
 933 int
 934 nouveau_ioctl_setparam(struct drm_device *dev, void *data,
 935                        struct drm_file *file_priv)
 936 {
 937         struct drm_nouveau_setparam *setparam = data;
 938
 939         NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 940
 941         switch (setparam->param) {
 942         default:
 943                 NV_ERROR(dev, "unknown parameter %lld\n", setparam->param);
 944                 return -EINVAL;
 945         }
 946
 947         return 0;
 948 }
 949
 950 /* Wait until (value(reg) & mask) == val, up until timeout has hit */
 951 bool nouveau_wait_until(struct drm_device *dev, uint64_t timeout,
 952                         uint32_t reg, uint32_t mask, uint32_t val)
 953 {
 954         struct drm_nouveau_private *dev_priv = dev->dev_private;
 955         struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
 956         uint64_t start = ptimer->read(dev);
 957
 958         do {
 959                 if ((nv_rd32(dev, reg) & mask) == val)
 960                         return true;
 961         } while (ptimer->read(dev) - start < timeout);
 962
 963         return false;
 964 }
 965
 966 /* Waits for PGRAPH to go completely idle */
 967 bool nouveau_wait_for_idle(struct drm_device *dev)
 968 {
 969         if (!nv_wait(NV04_PGRAPH_STATUS, 0xffffffff, 0x00000000)) {
 970                 NV_ERROR(dev, "PGRAPH idle timed out with status 0x%08x\n",
 971                          nv_rd32(dev, NV04_PGRAPH_STATUS));
 972                 return false;
 973         }
 974
 975         return true;
 976 }
 977