drivers/gpu/drm/nouveau/nv50_display.c

   1 /*
   2  * Copyright (C) 2008 Maarten Maathuis.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nv50_display.h"
  28 #include "nouveau_crtc.h"
  29 #include "nouveau_encoder.h"
  30 #include "nouveau_connector.h"
  31 #include "nouveau_fb.h"
  32 #include "drm_crtc_helper.h"
  33
  34 static void
  35 nv50_evo_channel_del(struct nouveau_channel **pchan)
  36 {
  37         struct nouveau_channel *chan = *pchan;
  38
  39         if (!chan)
  40                 return;
  41         *pchan = NULL;
  42
  43         nouveau_gpuobj_channel_takedown(chan);
  44         nouveau_bo_ref(NULL, &chan->pushbuf_bo);
  45
  46         if (chan->user)
  47                 iounmap(chan->user);
  48
  49         kfree(chan);
  50 }
  51
  52 static int
  53 nv50_evo_dmaobj_new(struct nouveau_channel *evo, uint32_t class, uint32_t name,
  54                     uint32_t tile_flags, uint32_t magic_flags,
  55                     uint32_t offset, uint32_t limit)
  56 {
  57         struct drm_nouveau_private *dev_priv = evo->dev->dev_private;
  58         struct drm_device *dev = evo->dev;
  59         struct nouveau_gpuobj *obj = NULL;
  60         int ret;
  61
  62         ret = nouveau_gpuobj_new(dev, evo, 6*4, 32, 0, &obj);
  63         if (ret)
  64                 return ret;
  65         obj->engine = NVOBJ_ENGINE_DISPLAY;
  66
  67         ret = nouveau_gpuobj_ref_add(dev, evo, name, obj, NULL);
  68         if (ret) {
  69                 nouveau_gpuobj_del(dev, &obj);
  70                 return ret;
  71         }
  72
  73         dev_priv->engine.instmem.prepare_access(dev, true);
  74         nv_wo32(dev, obj, 0, (tile_flags << 22) | (magic_flags << 16) | class);
  75         nv_wo32(dev, obj, 1, limit);
  76         nv_wo32(dev, obj, 2, offset);
  77         nv_wo32(dev, obj, 3, 0x00000000);
  78         nv_wo32(dev, obj, 4, 0x00000000);
  79         nv_wo32(dev, obj, 5, 0x00010000);
  80         dev_priv->engine.instmem.finish_access(dev);
  81
  82         return 0;
  83 }
  84
  85 static int
  86 nv50_evo_channel_new(struct drm_device *dev, struct nouveau_channel **pchan)
  87 {
  88         struct drm_nouveau_private *dev_priv = dev->dev_private;
  89         struct nouveau_channel *chan;
  90         int ret;
  91
  92         chan = kzalloc(sizeof(struct nouveau_channel), GFP_KERNEL);
  93         if (!chan)
  94                 return -ENOMEM;
  95         *pchan = chan;
  96
  97         chan->id = -1;
  98         chan->dev = dev;
  99         chan->user_get = 4;
 100         chan->user_put = 0;
 101
 102         INIT_LIST_HEAD(&chan->ramht_refs);
 103
 104         ret = nouveau_gpuobj_new_ref(dev, NULL, NULL, 0, 32768, 0x1000,
 105                                      NVOBJ_FLAG_ZERO_ALLOC, &chan->ramin);
 106         if (ret) {
 107                 NV_ERROR(dev, "Error allocating EVO channel memory: %d\n", ret);
 108                 nv50_evo_channel_del(pchan);
 109                 return ret;
 110         }
 111
 112         ret = nouveau_mem_init_heap(&chan->ramin_heap, chan->ramin->gpuobj->
 113                                     im_pramin->start, 32768);
 114         if (ret) {
 115                 NV_ERROR(dev, "Error initialising EVO PRAMIN heap: %d\n", ret);
 116                 nv50_evo_channel_del(pchan);
 117                 return ret;
 118         }
 119
 120         ret = nouveau_gpuobj_new_ref(dev, chan, chan, 0, 4096, 16,
 121                                      0, &chan->ramht);
 122         if (ret) {
 123                 NV_ERROR(dev, "Unable to allocate EVO RAMHT: %d\n", ret);
 124                 nv50_evo_channel_del(pchan);
 125                 return ret;
 126         }
 127
 128         if (dev_priv->chipset != 0x50) {
 129                 ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB16, 0x70, 0x19,
 130                                           0, 0xffffffff);
 131                 if (ret) {
 132                         nv50_evo_channel_del(pchan);
 133                         return ret;
 134                 }
 135
 136
 137                 ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB32, 0x7a, 0x19,
 138                                           0, 0xffffffff);
 139                 if (ret) {
 140                         nv50_evo_channel_del(pchan);
 141                         return ret;
 142                 }
 143         }
 144
 145         ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoVRAM, 0, 0x19,
 146                                   0, nouveau_mem_fb_amount(dev));
 147         if (ret) {
 148                 nv50_evo_channel_del(pchan);
 149                 return ret;
 150         }
 151
 152         ret = nouveau_bo_new(dev, NULL, 4096, 0, TTM_PL_FLAG_VRAM, 0, 0,
 153                              false, true, &chan->pushbuf_bo);
 154         if (ret == 0)
 155                 ret = nouveau_bo_pin(chan->pushbuf_bo, TTM_PL_FLAG_VRAM);
 156         if (ret) {
 157                 NV_ERROR(dev, "Error creating EVO DMA push buffer: %d\n", ret);
 158                 nv50_evo_channel_del(pchan);
 159                 return ret;
 160         }
 161
 162         ret = nouveau_bo_map(chan->pushbuf_bo);
 163         if (ret) {
 164                 NV_ERROR(dev, "Error mapping EVO DMA push buffer: %d\n", ret);
 165                 nv50_evo_channel_del(pchan);
 166                 return ret;
 167         }
 168
 169         chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
 170                                         NV50_PDISPLAY_USER(0), PAGE_SIZE);
 171         if (!chan->user) {
 172                 NV_ERROR(dev, "Error mapping EVO control regs.\n");
 173                 nv50_evo_channel_del(pchan);
 174                 return -ENOMEM;
 175         }
 176
 177         return 0;
 178 }
 179
 180 int
 181 nv50_display_init(struct drm_device *dev)
 182 {
 183         struct drm_nouveau_private *dev_priv = dev->dev_private;
 184         struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
 185         struct nouveau_channel *evo = dev_priv->evo;
 186         struct drm_connector *connector;
 187         uint32_t val, ram_amount, hpd_en[2];
 188         uint64_t start;
 189         int ret, i;
 190
 191         NV_DEBUG_KMS(dev, "\n");
 192
 193         nv_wr32(dev, 0x00610184, nv_rd32(dev, 0x00614004));
 194         /*
 195          * I think the 0x006101XX range is some kind of main control area
 196          * that enables things.
 197          */
 198         /* CRTC? */
 199         for (i = 0; i < 2; i++) {
 200                 val = nv_rd32(dev, 0x00616100 + (i * 0x800));
 201                 nv_wr32(dev, 0x00610190 + (i * 0x10), val);
 202                 val = nv_rd32(dev, 0x00616104 + (i * 0x800));
 203                 nv_wr32(dev, 0x00610194 + (i * 0x10), val);
 204                 val = nv_rd32(dev, 0x00616108 + (i * 0x800));
 205                 nv_wr32(dev, 0x00610198 + (i * 0x10), val);
 206                 val = nv_rd32(dev, 0x0061610c + (i * 0x800));
 207                 nv_wr32(dev, 0x0061019c + (i * 0x10), val);
 208         }
 209         /* DAC */
 210         for (i = 0; i < 3; i++) {
 211                 val = nv_rd32(dev, 0x0061a000 + (i * 0x800));
 212                 nv_wr32(dev, 0x006101d0 + (i * 0x04), val);
 213         }
 214         /* SOR */
 215         for (i = 0; i < 4; i++) {
 216                 val = nv_rd32(dev, 0x0061c000 + (i * 0x800));
 217                 nv_wr32(dev, 0x006101e0 + (i * 0x04), val);
 218         }
 219         /* Something not yet in use, tv-out maybe. */
 220         for (i = 0; i < 3; i++) {
 221                 val = nv_rd32(dev, 0x0061e000 + (i * 0x800));
 222                 nv_wr32(dev, 0x006101f0 + (i * 0x04), val);
 223         }
 224
 225         for (i = 0; i < 3; i++) {
 226                 nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(i), 0x00550000 |
 227                         NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
 228                 nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(i), 0x00000001);
 229         }
 230
 231         /* This used to be in crtc unblank, but seems out of place there. */
 232         nv_wr32(dev, NV50_PDISPLAY_UNK_380, 0);
 233         /* RAM is clamped to 256 MiB. */
 234         ram_amount = nouveau_mem_fb_amount(dev);
 235         NV_DEBUG_KMS(dev, "ram_amount %d\n", ram_amount);
 236         if (ram_amount > 256*1024*1024)
 237                 ram_amount = 256*1024*1024;
 238         nv_wr32(dev, NV50_PDISPLAY_RAM_AMOUNT, ram_amount - 1);
 239         nv_wr32(dev, NV50_PDISPLAY_UNK_388, 0x150000);
 240         nv_wr32(dev, NV50_PDISPLAY_UNK_38C, 0);
 241
 242         /* The precise purpose is unknown, i suspect it has something to do
 243          * with text mode.
 244          */
 245         if (nv_rd32(dev, NV50_PDISPLAY_INTR_1) & 0x100) {
 246                 nv_wr32(dev, NV50_PDISPLAY_INTR_1, 0x100);
 247                 nv_wr32(dev, 0x006194e8, nv_rd32(dev, 0x006194e8) & ~1);
 248                 if (!nv_wait(0x006194e8, 2, 0)) {
 249                         NV_ERROR(dev, "timeout: (0x6194e8 & 2) != 0\n");
 250                         NV_ERROR(dev, "0x6194e8 = 0x%08x\n",
 251                                                 nv_rd32(dev, 0x6194e8));
 252                         return -EBUSY;
 253                 }
 254         }
 255
 256         /* taken from nv bug #12637, attempts to un-wedge the hw if it's
 257          * stuck in some unspecified state
 258          */
 259         start = ptimer->read(dev);
 260         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x2b00);
 261         while ((val = nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0))) & 0x1e0000) {
 262                 if ((val & 0x9f0000) == 0x20000)
 263                         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
 264                                                         val | 0x800000);
 265
 266                 if ((val & 0x3f0000) == 0x30000)
 267                         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
 268                                                         val | 0x200000);
 269
 270                 if (ptimer->read(dev) - start > 1000000000ULL) {
 271                         NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) != 0\n");
 272                         NV_ERROR(dev, "0x610200 = 0x%08x\n", val);
 273                         return -EBUSY;
 274                 }
 275         }
 276
 277         nv_wr32(dev, NV50_PDISPLAY_CTRL_STATE, NV50_PDISPLAY_CTRL_STATE_ENABLE);
 278         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x1000b03);
 279         if (!nv_wait(NV50_PDISPLAY_CHANNEL_STAT(0), 0x40000000, 0x40000000)) {
 280                 NV_ERROR(dev, "timeout: (0x610200 & 0x40000000) == 0x40000000\n");
 281                 NV_ERROR(dev, "0x610200 = 0x%08x\n",
 282                           nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)));
 283                 return -EBUSY;
 284         }
 285
 286         for (i = 0; i < 2; i++) {
 287                 nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i), 0x2000);
 288                 if (!nv_wait(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
 289                              NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS, 0)) {
 290                         NV_ERROR(dev, "timeout: CURSOR_CTRL2_STATUS == 0\n");
 291                         NV_ERROR(dev, "CURSOR_CTRL2 = 0x%08x\n",
 292                                  nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
 293                         return -EBUSY;
 294                 }
 295
 296                 nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
 297                         NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_ON);
 298                 if (!nv_wait(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
 299                              NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS,
 300                              NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_ACTIVE)) {
 301                         NV_ERROR(dev, "timeout: "
 302                                       "CURSOR_CTRL2_STATUS_ACTIVE(%d)\n", i);
 303                         NV_ERROR(dev, "CURSOR_CTRL2(%d) = 0x%08x\n", i,
 304                                  nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
 305                         return -EBUSY;
 306                 }
 307         }
 308
 309         nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->instance >> 8) | 9);
 310
 311         /* initialise fifo */
 312         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_DMA_CB(0),
 313                 ((evo->pushbuf_bo->bo.mem.mm_node->start << PAGE_SHIFT) >> 8) |
 314                 NV50_PDISPLAY_CHANNEL_DMA_CB_LOCATION_VRAM |
 315                 NV50_PDISPLAY_CHANNEL_DMA_CB_VALID);
 316         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_UNK2(0), 0x00010000);
 317         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_UNK3(0), 0x00000002);
 318         if (!nv_wait(0x610200, 0x80000000, 0x00000000)) {
 319                 NV_ERROR(dev, "timeout: (0x610200 & 0x80000000) == 0\n");
 320                 NV_ERROR(dev, "0x610200 = 0x%08x\n", nv_rd32(dev, 0x610200));
 321                 return -EBUSY;
 322         }
 323         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
 324                 (nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)) & ~0x00000003) |
 325                  NV50_PDISPLAY_CHANNEL_STAT_DMA_ENABLED);
 326         nv_wr32(dev, NV50_PDISPLAY_USER_PUT(0), 0);
 327         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x01000003 |
 328                 NV50_PDISPLAY_CHANNEL_STAT_DMA_ENABLED);
 329         nv_wr32(dev, 0x610300, nv_rd32(dev, 0x610300) & ~1);
 330
 331         evo->dma.max = (4096/4) - 2;
 332         evo->dma.put = 0;
 333         evo->dma.cur = evo->dma.put;
 334         evo->dma.free = evo->dma.max - evo->dma.cur;
 335
 336         ret = RING_SPACE(evo, NOUVEAU_DMA_SKIPS);
 337         if (ret)
 338                 return ret;
 339
 340         for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
 341                 OUT_RING(evo, 0);
 342
 343         ret = RING_SPACE(evo, 11);
 344         if (ret)
 345                 return ret;
 346         BEGIN_RING(evo, 0, NV50_EVO_UNK84, 2);
 347         OUT_RING(evo, NV50_EVO_UNK84_NOTIFY_DISABLED);
 348         OUT_RING(evo, NV50_EVO_DMA_NOTIFY_HANDLE_NONE);
 349         BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, FB_DMA), 1);
 350         OUT_RING(evo, NV50_EVO_CRTC_FB_DMA_HANDLE_NONE);
 351         BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK0800), 1);
 352         OUT_RING(evo, 0);
 353         BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, DISPLAY_START), 1);
 354         OUT_RING(evo, 0);
 355         BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK082C), 1);
 356         OUT_RING(evo, 0);
 357         FIRE_RING(evo);
 358         if (!nv_wait(0x640004, 0xffffffff, evo->dma.put << 2))
 359                 NV_ERROR(dev, "evo pushbuf stalled\n");
 360
 361         /* enable clock change interrupts. */
 362         nv_wr32(dev, 0x610028, 0x00010001);
 363         nv_wr32(dev, NV50_PDISPLAY_INTR_EN, (NV50_PDISPLAY_INTR_EN_CLK_UNK10 |
 364                                              NV50_PDISPLAY_INTR_EN_CLK_UNK20 |
 365                                              NV50_PDISPLAY_INTR_EN_CLK_UNK40));
 366
 367         /* enable hotplug interrupts */
 368         hpd_en[0] = hpd_en[1] = 0;
 369         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 370                 struct nouveau_connector *conn = nouveau_connector(connector);
 371                 struct dcb_gpio_entry *gpio;
 372
 373                 if (conn->dcb->gpio_tag == 0xff)
 374                         continue;
 375
 376                 gpio = nouveau_bios_gpio_entry(dev, conn->dcb->gpio_tag);
 377                 if (!gpio)
 378                         continue;
 379
 380                 hpd_en[gpio->line >> 4] |= (0x00010001 << (gpio->line & 0xf));
 381         }
 382
 383         nv_wr32(dev, 0xe054, 0xffffffff);
 384         nv_wr32(dev, 0xe050, hpd_en[0]);
 385         if (dev_priv->chipset >= 0x90) {
 386                 nv_wr32(dev, 0xe074, 0xffffffff);
 387                 nv_wr32(dev, 0xe070, hpd_en[1]);
 388         }
 389
 390         return 0;
 391 }
 392
 393 static int nv50_display_disable(struct drm_device *dev)
 394 {
 395         struct drm_nouveau_private *dev_priv = dev->dev_private;
 396         struct drm_crtc *drm_crtc;
 397         int ret, i;
 398
 399         NV_DEBUG_KMS(dev, "\n");
 400
 401         list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
 402                 struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
 403
 404                 nv50_crtc_blank(crtc, true);
 405         }
 406
 407         ret = RING_SPACE(dev_priv->evo, 2);
 408         if (ret == 0) {
 409                 BEGIN_RING(dev_priv->evo, 0, NV50_EVO_UPDATE, 1);
 410                 OUT_RING(dev_priv->evo, 0);
 411         }
 412         FIRE_RING(dev_priv->evo);
 413
 414         /* Almost like ack'ing a vblank interrupt, maybe in the spirit of
 415          * cleaning up?
 416          */
 417         list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
 418                 struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
 419                 uint32_t mask = NV50_PDISPLAY_INTR_1_VBLANK_CRTC_(crtc->index);
 420
 421                 if (!crtc->base.enabled)
 422                         continue;
 423
 424                 nv_wr32(dev, NV50_PDISPLAY_INTR_1, mask);
 425                 if (!nv_wait(NV50_PDISPLAY_INTR_1, mask, mask)) {
 426                         NV_ERROR(dev, "timeout: (0x610024 & 0x%08x) == "
 427                                       "0x%08x\n", mask, mask);
 428                         NV_ERROR(dev, "0x610024 = 0x%08x\n",
 429                                  nv_rd32(dev, NV50_PDISPLAY_INTR_1));
 430                 }
 431         }
 432
 433         nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0);
 434         nv_wr32(dev, NV50_PDISPLAY_CTRL_STATE, 0);
 435         if (!nv_wait(NV50_PDISPLAY_CHANNEL_STAT(0), 0x1e0000, 0)) {
 436                 NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) == 0\n");
 437                 NV_ERROR(dev, "0x610200 = 0x%08x\n",
 438                           nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)));
 439         }
 440
 441         for (i = 0; i < 3; i++) {
 442                 if (!nv_wait(NV50_PDISPLAY_SOR_DPMS_STATE(i),
 443                              NV50_PDISPLAY_SOR_DPMS_STATE_WAIT, 0)) {
 444                         NV_ERROR(dev, "timeout: SOR_DPMS_STATE_WAIT(%d) == 0\n", i);
 445                         NV_ERROR(dev, "SOR_DPMS_STATE(%d) = 0x%08x\n", i,
 446                                   nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_STATE(i)));
 447                 }
 448         }
 449
 450         /* disable interrupts. */
 451         nv_wr32(dev, NV50_PDISPLAY_INTR_EN, 0x00000000);
 452
 453         /* disable hotplug interrupts */
 454         nv_wr32(dev, 0xe054, 0xffffffff);
 455         nv_wr32(dev, 0xe050, 0x00000000);
 456         if (dev_priv->chipset >= 0x90) {
 457                 nv_wr32(dev, 0xe074, 0xffffffff);
 458                 nv_wr32(dev, 0xe070, 0x00000000);
 459         }
 460         return 0;
 461 }
 462
 463 int nv50_display_create(struct drm_device *dev)
 464 {
 465         struct drm_nouveau_private *dev_priv = dev->dev_private;
 466         struct dcb_table *dcb = &dev_priv->vbios.dcb;
 467         int ret, i;
 468
 469         NV_DEBUG_KMS(dev, "\n");
 470
 471         /* init basic kernel modesetting */
 472         drm_mode_config_init(dev);
 473
 474         /* Initialise some optional connector properties. */
 475         drm_mode_create_scaling_mode_property(dev);
 476         drm_mode_create_dithering_property(dev);
 477
 478         dev->mode_config.min_width = 0;
 479         dev->mode_config.min_height = 0;
 480
 481         dev->mode_config.funcs = (void *)&nouveau_mode_config_funcs;
 482
 483         dev->mode_config.max_width = 8192;
 484         dev->mode_config.max_height = 8192;
 485
 486         dev->mode_config.fb_base = dev_priv->fb_phys;
 487
 488         /* Create EVO channel */
 489         ret = nv50_evo_channel_new(dev, &dev_priv->evo);
 490         if (ret) {
 491                 NV_ERROR(dev, "Error creating EVO channel: %d\n", ret);
 492                 return ret;
 493         }
 494
 495         /* Create CRTC objects */
 496         for (i = 0; i < 2; i++)
 497                 nv50_crtc_create(dev, i);
 498
 499         /* We setup the encoders from the BIOS table */
 500         for (i = 0 ; i < dcb->entries; i++) {
 501                 struct dcb_entry *entry = &dcb->entry[i];
 502
 503                 if (entry->location != DCB_LOC_ON_CHIP) {
 504                         NV_WARN(dev, "Off-chip encoder %d/%d unsupported\n",
 505                                 entry->type, ffs(entry->or) - 1);
 506                         continue;
 507                 }
 508
 509                 switch (entry->type) {
 510                 case OUTPUT_TMDS:
 511                 case OUTPUT_LVDS:
 512                 case OUTPUT_DP:
 513                         nv50_sor_create(dev, entry);
 514                         break;
 515                 case OUTPUT_ANALOG:
 516                         nv50_dac_create(dev, entry);
 517                         break;
 518                 default:
 519                         NV_WARN(dev, "DCB encoder %d unknown\n", entry->type);
 520                         continue;
 521                 }
 522         }
 523
 524         for (i = 0 ; i < dcb->connector.entries; i++) {
 525                 if (i != 0 && dcb->connector.entry[i].index2 ==
 526                               dcb->connector.entry[i - 1].index2)
 527                         continue;
 528                 nouveau_connector_create(dev, &dcb->connector.entry[i]);
 529         }
 530
 531         ret = nv50_display_init(dev);
 532         if (ret)
 533                 return ret;
 534
 535         return 0;
 536 }
 537
 538 int nv50_display_destroy(struct drm_device *dev)
 539 {
 540         struct drm_nouveau_private *dev_priv = dev->dev_private;
 541
 542         NV_DEBUG_KMS(dev, "\n");
 543
 544         drm_mode_config_cleanup(dev);
 545
 546         nv50_display_disable(dev);
 547         nv50_evo_channel_del(&dev_priv->evo);
 548
 549         return 0;
 550 }
 551
 552 static inline uint32_t
 553 nv50_display_mode_ctrl(struct drm_device *dev, bool sor, int or)
 554 {
 555         struct drm_nouveau_private *dev_priv = dev->dev_private;
 556         uint32_t mc;
 557
 558         if (sor) {
 559                 if (dev_priv->chipset < 0x90 ||
 560                     dev_priv->chipset == 0x92 || dev_priv->chipset == 0xa0)
 561                         mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_P(or));
 562                 else
 563                         mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_P(or));
 564         } else {
 565                 mc = nv_rd32(dev, NV50_PDISPLAY_DAC_MODE_CTRL_P(or));
 566         }
 567
 568         return mc;
 569 }
 570
 571 static int
 572 nv50_display_irq_head(struct drm_device *dev, int *phead,
 573                       struct dcb_entry **pdcbent)
 574 {
 575         struct drm_nouveau_private *dev_priv = dev->dev_private;
 576         uint32_t unk30 = nv_rd32(dev, NV50_PDISPLAY_UNK30_CTRL);
 577         uint32_t dac = 0, sor = 0;
 578         int head, i, or = 0, type = OUTPUT_ANY;
 579
 580         /* We're assuming that head 0 *or* head 1 will be active here,
 581          * and not both.  I'm not sure if the hw will even signal both
 582          * ever, but it definitely shouldn't for us as we commit each
 583          * CRTC separately, and submission will be blocked by the GPU
 584          * until we handle each in turn.
 585          */
 586         NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
 587         head = ffs((unk30 >> 9) & 3) - 1;
 588         if (head < 0)
 589                 return -EINVAL;
 590
 591         /* This assumes CRTCs are never bound to multiple encoders, which
 592          * should be the case.
 593          */
 594         for (i = 0; i < 3 && type == OUTPUT_ANY; i++) {
 595                 uint32_t mc = nv50_display_mode_ctrl(dev, false, i);
 596                 if (!(mc & (1 << head)))
 597                         continue;
 598
 599                 switch ((mc >> 8) & 0xf) {
 600                 case 0: type = OUTPUT_ANALOG; break;
 601                 case 1: type = OUTPUT_TV; break;
 602                 default:
 603                         NV_ERROR(dev, "unknown dac mode_ctrl: 0x%08x\n", dac);
 604                         return -1;
 605                 }
 606
 607                 or = i;
 608         }
 609
 610         for (i = 0; i < 4 && type == OUTPUT_ANY; i++) {
 611                 uint32_t mc = nv50_display_mode_ctrl(dev, true, i);
 612                 if (!(mc & (1 << head)))
 613                         continue;
 614
 615                 switch ((mc >> 8) & 0xf) {
 616                 case 0: type = OUTPUT_LVDS; break;
 617                 case 1: type = OUTPUT_TMDS; break;
 618                 case 2: type = OUTPUT_TMDS; break;
 619                 case 5: type = OUTPUT_TMDS; break;
 620                 case 8: type = OUTPUT_DP; break;
 621                 case 9: type = OUTPUT_DP; break;
 622                 default:
 623                         NV_ERROR(dev, "unknown sor mode_ctrl: 0x%08x\n", sor);
 624                         return -1;
 625                 }
 626
 627                 or = i;
 628         }
 629
 630         NV_DEBUG_KMS(dev, "type %d, or %d\n", type, or);
 631         if (type == OUTPUT_ANY) {
 632                 NV_ERROR(dev, "unknown encoder!!\n");
 633                 return -1;
 634         }
 635
 636         for (i = 0; i < dev_priv->vbios.dcb.entries; i++) {
 637                 struct dcb_entry *dcbent = &dev_priv->vbios.dcb.entry[i];
 638
 639                 if (dcbent->type != type)
 640                         continue;
 641
 642                 if (!(dcbent->or & (1 << or)))
 643                         continue;
 644
 645                 *phead = head;
 646                 *pdcbent = dcbent;
 647                 return 0;
 648         }
 649
 650         NV_ERROR(dev, "no DCB entry for %d %d\n", dac != 0, or);
 651         return 0;
 652 }
 653
 654 static uint32_t
 655 nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcbent,
 656                            int pxclk)
 657 {
 658         struct drm_nouveau_private *dev_priv = dev->dev_private;
 659         struct nouveau_connector *nv_connector = NULL;
 660         struct drm_encoder *encoder;
 661         struct nvbios *bios = &dev_priv->vbios;
 662         uint32_t mc, script = 0, or;
 663
 664         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 665                 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
 666
 667                 if (nv_encoder->dcb != dcbent)
 668                         continue;
 669
 670                 nv_connector = nouveau_encoder_connector_get(nv_encoder);
 671                 break;
 672         }
 673
 674         or = ffs(dcbent->or) - 1;
 675         mc = nv50_display_mode_ctrl(dev, dcbent->type != OUTPUT_ANALOG, or);
 676         switch (dcbent->type) {
 677         case OUTPUT_LVDS:
 678                 script = (mc >> 8) & 0xf;
 679                 if (bios->fp_no_ddc) {
 680                         if (bios->fp.dual_link)
 681                                 script |= 0x0100;
 682                         if (bios->fp.if_is_24bit)
 683                                 script |= 0x0200;
 684                 } else {
 685                         if (pxclk >= bios->fp.duallink_transition_clk) {
 686                                 script |= 0x0100;
 687                                 if (bios->fp.strapless_is_24bit & 2)
 688                                         script |= 0x0200;
 689                         } else
 690                         if (bios->fp.strapless_is_24bit & 1)
 691                                 script |= 0x0200;
 692
 693                         if (nv_connector && nv_connector->edid &&
 694                             (nv_connector->edid->revision >= 4) &&
 695                             (nv_connector->edid->input & 0x70) >= 0x20)
 696                                 script |= 0x0200;
 697                 }
 698
 699                 if (nouveau_uscript_lvds >= 0) {
 700                         NV_INFO(dev, "override script 0x%04x with 0x%04x "
 701                                      "for output LVDS-%d\n", script,
 702                                      nouveau_uscript_lvds, or);
 703                         script = nouveau_uscript_lvds;
 704                 }
 705                 break;
 706         case OUTPUT_TMDS:
 707                 script = (mc >> 8) & 0xf;
 708                 if (pxclk >= 165000)
 709                         script |= 0x0100;
 710
 711                 if (nouveau_uscript_tmds >= 0) {
 712                         NV_INFO(dev, "override script 0x%04x with 0x%04x "
 713                                      "for output TMDS-%d\n", script,
 714                                      nouveau_uscript_tmds, or);
 715                         script = nouveau_uscript_tmds;
 716                 }
 717                 break;
 718         case OUTPUT_DP:
 719                 script = (mc >> 8) & 0xf;
 720                 break;
 721         case OUTPUT_ANALOG:
 722                 script = 0xff;
 723                 break;
 724         default:
 725                 NV_ERROR(dev, "modeset on unsupported output type!\n");
 726                 break;
 727         }
 728
 729         return script;
 730 }
 731
 732 static void
 733 nv50_display_vblank_crtc_handler(struct drm_device *dev, int crtc)
 734 {
 735         struct drm_nouveau_private *dev_priv = dev->dev_private;
 736         struct nouveau_channel *chan;
 737         struct list_head *entry, *tmp;
 738
 739         list_for_each_safe(entry, tmp, &dev_priv->vbl_waiting) {
 740                 chan = list_entry(entry, struct nouveau_channel, nvsw.vbl_wait);
 741
 742                 nouveau_bo_wr32(chan->notifier_bo, chan->nvsw.vblsem_offset,
 743                                                 chan->nvsw.vblsem_rval);
 744                 list_del(&chan->nvsw.vbl_wait);
 745         }
 746 }
 747
 748 static void
 749 nv50_display_vblank_handler(struct drm_device *dev, uint32_t intr)
 750 {
 751         intr &= NV50_PDISPLAY_INTR_1_VBLANK_CRTC;
 752
 753         if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_0)
 754                 nv50_display_vblank_crtc_handler(dev, 0);
 755
 756         if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_1)
 757                 nv50_display_vblank_crtc_handler(dev, 1);
 758
 759         nv_wr32(dev, NV50_PDISPLAY_INTR_EN, nv_rd32(dev,
 760                      NV50_PDISPLAY_INTR_EN) & ~intr);
 761         nv_wr32(dev, NV50_PDISPLAY_INTR_1, intr);
 762 }
 763
 764 static void
 765 nv50_display_unk10_handler(struct drm_device *dev)
 766 {
 767         struct dcb_entry *dcbent;
 768         int head, ret;
 769
 770         ret = nv50_display_irq_head(dev, &head, &dcbent);
 771         if (ret)
 772                 goto ack;
 773
 774         nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) & ~8);
 775
 776         nouveau_bios_run_display_table(dev, dcbent, 0, -1);
 777
 778 ack:
 779         nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK10);
 780         nv_wr32(dev, 0x610030, 0x80000000);
 781 }
 782
 783 static void
 784 nv50_display_unk20_handler(struct drm_device *dev)
 785 {
 786         struct dcb_entry *dcbent;
 787         uint32_t tmp, pclk, script;
 788         int head, or, ret;
 789
 790         ret = nv50_display_irq_head(dev, &head, &dcbent);
 791         if (ret)
 792                 goto ack;
 793         or = ffs(dcbent->or) - 1;
 794         pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(head, CLOCK)) & 0x3fffff;
 795         script = nv50_display_script_select(dev, dcbent, pclk);
 796
 797         NV_DEBUG_KMS(dev, "head %d pxclk: %dKHz\n", head, pclk);
 798
 799         if (dcbent->type != OUTPUT_DP)
 800                 nouveau_bios_run_display_table(dev, dcbent, 0, -2);
 801
 802         nv50_crtc_set_clock(dev, head, pclk);
 803
 804         nouveau_bios_run_display_table(dev, dcbent, script, pclk);
 805
 806         tmp = nv_rd32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(head));
 807         tmp &= ~0x000000f;
 808         nv_wr32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(head), tmp);
 809
 810         if (dcbent->type != OUTPUT_ANALOG) {
 811                 tmp = nv_rd32(dev, NV50_PDISPLAY_SOR_CLK_CTRL2(or));
 812                 tmp &= ~0x00000f0f;
 813                 if (script & 0x0100)
 814                         tmp |= 0x00000101;
 815                 nv_wr32(dev, NV50_PDISPLAY_SOR_CLK_CTRL2(or), tmp);
 816         } else {
 817                 nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL2(or), 0);
 818         }
 819
 820 ack:
 821         nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK20);
 822         nv_wr32(dev, 0x610030, 0x80000000);
 823 }
 824
 825 static void
 826 nv50_display_unk40_handler(struct drm_device *dev)
 827 {
 828         struct dcb_entry *dcbent;
 829         int head, pclk, script, ret;
 830
 831         ret = nv50_display_irq_head(dev, &head, &dcbent);
 832         if (ret)
 833                 goto ack;
 834         pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(head, CLOCK)) & 0x3fffff;
 835         script = nv50_display_script_select(dev, dcbent, pclk);
 836
 837         nouveau_bios_run_display_table(dev, dcbent, script, -pclk);
 838
 839 ack:
 840         nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK40);
 841         nv_wr32(dev, 0x610030, 0x80000000);
 842         nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) | 8);
 843 }
 844
 845 void
 846 nv50_display_irq_handler_bh(struct work_struct *work)
 847 {
 848         struct drm_nouveau_private *dev_priv =
 849                 container_of(work, struct drm_nouveau_private, irq_work);
 850         struct drm_device *dev = dev_priv->dev;
 851
 852         for (;;) {
 853                 uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
 854                 uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
 855
 856                 NV_DEBUG_KMS(dev, "PDISPLAY_INTR_BH 0x%08x 0x%08x\n", intr0, intr1);
 857
 858                 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK10)
 859                         nv50_display_unk10_handler(dev);
 860                 else
 861                 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK20)
 862                         nv50_display_unk20_handler(dev);
 863                 else
 864                 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK40)
 865                         nv50_display_unk40_handler(dev);
 866                 else
 867                         break;
 868         }
 869
 870         nv_wr32(dev, NV03_PMC_INTR_EN_0, 1);
 871 }
 872
 873 static void
 874 nv50_display_error_handler(struct drm_device *dev)
 875 {
 876         uint32_t addr, data;
 877
 878         nv_wr32(dev, NV50_PDISPLAY_INTR_0, 0x00010000);
 879         addr = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_ADDR);
 880         data = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_DATA);
 881
 882         NV_ERROR(dev, "EvoCh %d Mthd 0x%04x Data 0x%08x (0x%04x 0x%02x)\n",
 883                  0, addr & 0xffc, data, addr >> 16, (addr >> 12) & 0xf);
 884
 885         nv_wr32(dev, NV50_PDISPLAY_TRAPPED_ADDR, 0x90000000);
 886 }
 887
 888 static void
 889 nv50_display_irq_hotplug(struct drm_device *dev)
 890 {
 891         struct drm_nouveau_private *dev_priv = dev->dev_private;
 892         struct drm_connector *connector;
 893         const uint32_t gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 };
 894         uint32_t unplug_mask, plug_mask, change_mask;
 895         uint32_t hpd0, hpd1 = 0;
 896
 897         hpd0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050);
 898         if (dev_priv->chipset >= 0x90)
 899                 hpd1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070);
 900
 901         plug_mask   = (hpd0 & 0x0000ffff) | (hpd1 << 16);
 902         unplug_mask = (hpd0 >> 16) | (hpd1 & 0xffff0000);
 903         change_mask = plug_mask | unplug_mask;
 904
 905         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 906                 struct drm_encoder_helper_funcs *helper;
 907                 struct nouveau_connector *nv_connector =
 908                         nouveau_connector(connector);
 909                 struct nouveau_encoder *nv_encoder;
 910                 struct dcb_gpio_entry *gpio;
 911                 uint32_t reg;
 912                 bool plugged;
 913
 914                 if (!nv_connector->dcb)
 915                         continue;
 916
 917                 gpio = nouveau_bios_gpio_entry(dev, nv_connector->dcb->gpio_tag);
 918                 if (!gpio || !(change_mask & (1 << gpio->line)))
 919                         continue;
 920
 921                 reg = nv_rd32(dev, gpio_reg[gpio->line >> 3]);
 922                 plugged = !!(reg & (4 << ((gpio->line & 7) << 2)));
 923                 NV_INFO(dev, "%splugged %s\n", plugged ? "" : "un",
 924                         drm_get_connector_name(connector)) ;
 925
 926                 if (!connector->encoder || !connector->encoder->crtc ||
 927                     !connector->encoder->crtc->enabled)
 928                         continue;
 929                 nv_encoder = nouveau_encoder(connector->encoder);
 930                 helper = connector->encoder->helper_private;
 931
 932                 if (nv_encoder->dcb->type != OUTPUT_DP)
 933                         continue;
 934
 935                 if (plugged)
 936                         helper->dpms(connector->encoder, DRM_MODE_DPMS_ON);
 937                 else
 938                         helper->dpms(connector->encoder, DRM_MODE_DPMS_OFF);
 939         }
 940
 941         nv_wr32(dev, 0xe054, nv_rd32(dev, 0xe054));
 942         if (dev_priv->chipset >= 0x90)
 943                 nv_wr32(dev, 0xe074, nv_rd32(dev, 0xe074));
 944 }
 945
 946 void
 947 nv50_display_irq_handler(struct drm_device *dev)
 948 {
 949         struct drm_nouveau_private *dev_priv = dev->dev_private;
 950         uint32_t delayed = 0;
 951
 952         while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_HOTPLUG)
 953                 nv50_display_irq_hotplug(dev);
 954
 955         while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_DISPLAY) {
 956                 uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
 957                 uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
 958                 uint32_t clock;
 959
 960                 NV_DEBUG_KMS(dev, "PDISPLAY_INTR 0x%08x 0x%08x\n", intr0, intr1);
 961
 962                 if (!intr0 && !(intr1 & ~delayed))
 963                         break;
 964
 965                 if (intr0 & 0x00010000) {
 966                         nv50_display_error_handler(dev);
 967                         intr0 &= ~0x00010000;
 968                 }
 969
 970                 if (intr1 & NV50_PDISPLAY_INTR_1_VBLANK_CRTC) {
 971                         nv50_display_vblank_handler(dev, intr1);
 972                         intr1 &= ~NV50_PDISPLAY_INTR_1_VBLANK_CRTC;
 973                 }
 974
 975                 clock = (intr1 & (NV50_PDISPLAY_INTR_1_CLK_UNK10 |
 976                                   NV50_PDISPLAY_INTR_1_CLK_UNK20 |
 977                                   NV50_PDISPLAY_INTR_1_CLK_UNK40));
 978                 if (clock) {
 979                         nv_wr32(dev, NV03_PMC_INTR_EN_0, 0);
 980                         if (!work_pending(&dev_priv->irq_work))
 981                                 queue_work(dev_priv->wq, &dev_priv->irq_work);
 982                         delayed |= clock;
 983                         intr1 &= ~clock;
 984                 }
 985
 986                 if (intr0) {
 987                         NV_ERROR(dev, "unknown PDISPLAY_INTR_0: 0x%08x\n", intr0);
 988                         nv_wr32(dev, NV50_PDISPLAY_INTR_0, intr0);
 989                 }
 990
 991                 if (intr1) {
 992                         NV_ERROR(dev,
 993                                  "unknown PDISPLAY_INTR_1: 0x%08x\n", intr1);
 994                         nv_wr32(dev, NV50_PDISPLAY_INTR_1, intr1);
 995                 }
 996         }
 997 }
 998