drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   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
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "vmwgfx_kms.h"
  29
  30
  31 /* Might need a hrtimer here? */
  32 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
  33
  34
  35 struct vmw_clip_rect {
  36         int x1, x2, y1, y2;
  37 };
  38
  39 /**
  40  * Clip @num_rects number of @rects against @clip storing the
  41  * results in @out_rects and the number of passed rects in @out_num.
  42  */
  43 void vmw_clip_cliprects(struct drm_clip_rect *rects,
  44                         int num_rects,
  45                         struct vmw_clip_rect clip,
  46                         SVGASignedRect *out_rects,
  47                         int *out_num)
  48 {
  49         int i, k;
  50
  51         for (i = 0, k = 0; i < num_rects; i++) {
  52                 int x1 = max_t(int, clip.x1, rects[i].x1);
  53                 int y1 = max_t(int, clip.y1, rects[i].y1);
  54                 int x2 = min_t(int, clip.x2, rects[i].x2);
  55                 int y2 = min_t(int, clip.y2, rects[i].y2);
  56
  57                 if (x1 >= x2)
  58                         continue;
  59                 if (y1 >= y2)
  60                         continue;
  61
  62                 out_rects[k].left   = x1;
  63                 out_rects[k].top    = y1;
  64                 out_rects[k].right  = x2;
  65                 out_rects[k].bottom = y2;
  66                 k++;
  67         }
  68
  69         *out_num = k;
  70 }
  71
  72 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
  73 {
  74         if (du->cursor_surface)
  75                 vmw_surface_unreference(&du->cursor_surface);
  76         if (du->cursor_dmabuf)
  77                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
  78         drm_crtc_cleanup(&du->crtc);
  79         drm_encoder_cleanup(&du->encoder);
  80         drm_connector_cleanup(&du->connector);
  81 }
  82
  83 /*
  84  * Display Unit Cursor functions
  85  */
  86
  87 int vmw_cursor_update_image(struct vmw_private *dev_priv,
  88                             u32 *image, u32 width, u32 height,
  89                             u32 hotspotX, u32 hotspotY)
  90 {
  91         struct {
  92                 u32 cmd;
  93                 SVGAFifoCmdDefineAlphaCursor cursor;
  94         } *cmd;
  95         u32 image_size = width * height * 4;
  96         u32 cmd_size = sizeof(*cmd) + image_size;
  97
  98         if (!image)
  99                 return -EINVAL;
 100
 101         cmd = vmw_fifo_reserve(dev_priv, cmd_size);
 102         if (unlikely(cmd == NULL)) {
 103                 DRM_ERROR("Fifo reserve failed.\n");
 104                 return -ENOMEM;
 105         }
 106
 107         memset(cmd, 0, sizeof(*cmd));
 108
 109         memcpy(&cmd[1], image, image_size);
 110
 111         cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
 112         cmd->cursor.id = cpu_to_le32(0);
 113         cmd->cursor.width = cpu_to_le32(width);
 114         cmd->cursor.height = cpu_to_le32(height);
 115         cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
 116         cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
 117
 118         vmw_fifo_commit(dev_priv, cmd_size);
 119
 120         return 0;
 121 }
 122
 123 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
 124                              struct vmw_dma_buffer *dmabuf,
 125                              u32 width, u32 height,
 126                              u32 hotspotX, u32 hotspotY)
 127 {
 128         struct ttm_bo_kmap_obj map;
 129         unsigned long kmap_offset;
 130         unsigned long kmap_num;
 131         void *virtual;
 132         bool dummy;
 133         int ret;
 134
 135         kmap_offset = 0;
 136         kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
 137
 138         ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
 139         if (unlikely(ret != 0)) {
 140                 DRM_ERROR("reserve failed\n");
 141                 return -EINVAL;
 142         }
 143
 144         ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
 145         if (unlikely(ret != 0))
 146                 goto err_unreserve;
 147
 148         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 149         ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
 150                                       hotspotX, hotspotY);
 151
 152         ttm_bo_kunmap(&map);
 153 err_unreserve:
 154         ttm_bo_unreserve(&dmabuf->base);
 155
 156         return ret;
 157 }
 158
 159
 160 void vmw_cursor_update_position(struct vmw_private *dev_priv,
 161                                 bool show, int x, int y)
 162 {
 163         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
 164         uint32_t count;
 165
 166         iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
 167         iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
 168         iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
 169         count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
 170         iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
 171 }
 172
 173 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
 174                            uint32_t handle, uint32_t width, uint32_t height)
 175 {
 176         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 177         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 178         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 179         struct vmw_surface *surface = NULL;
 180         struct vmw_dma_buffer *dmabuf = NULL;
 181         int ret;
 182
 183         /* A lot of the code assumes this */
 184         if (handle && (width != 64 || height != 64))
 185                 return -EINVAL;
 186
 187         if (handle) {
 188                 ret = vmw_user_lookup_handle(dev_priv, tfile,
 189                                              handle, &surface, &dmabuf);
 190                 if (ret) {
 191                         DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
 192                         return -EINVAL;
 193                 }
 194         }
 195
 196         /* need to do this before taking down old image */
 197         if (surface && !surface->snooper.image) {
 198                 DRM_ERROR("surface not suitable for cursor\n");
 199                 vmw_surface_unreference(&surface);
 200                 return -EINVAL;
 201         }
 202
 203         /* takedown old cursor */
 204         if (du->cursor_surface) {
 205                 du->cursor_surface->snooper.crtc = NULL;
 206                 vmw_surface_unreference(&du->cursor_surface);
 207         }
 208         if (du->cursor_dmabuf)
 209                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
 210
 211         /* setup new image */
 212         if (surface) {
 213                 /* vmw_user_surface_lookup takes one reference */
 214                 du->cursor_surface = surface;
 215
 216                 du->cursor_surface->snooper.crtc = crtc;
 217                 du->cursor_age = du->cursor_surface->snooper.age;
 218                 vmw_cursor_update_image(dev_priv, surface->snooper.image,
 219                                         64, 64, du->hotspot_x, du->hotspot_y);
 220         } else if (dmabuf) {
 221                 /* vmw_user_surface_lookup takes one reference */
 222                 du->cursor_dmabuf = dmabuf;
 223
 224                 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
 225                                                du->hotspot_x, du->hotspot_y);
 226         } else {
 227                 vmw_cursor_update_position(dev_priv, false, 0, 0);
 228                 return 0;
 229         }
 230
 231         vmw_cursor_update_position(dev_priv, true,
 232                                    du->cursor_x + du->hotspot_x,
 233                                    du->cursor_y + du->hotspot_y);
 234
 235         return 0;
 236 }
 237
 238 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 239 {
 240         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 241         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 242         bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
 243
 244         du->cursor_x = x + crtc->x;
 245         du->cursor_y = y + crtc->y;
 246
 247         vmw_cursor_update_position(dev_priv, shown,
 248                                    du->cursor_x + du->hotspot_x,
 249                                    du->cursor_y + du->hotspot_y);
 250
 251         return 0;
 252 }
 253
 254 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 255                           struct ttm_object_file *tfile,
 256                           struct ttm_buffer_object *bo,
 257                           SVGA3dCmdHeader *header)
 258 {
 259         struct ttm_bo_kmap_obj map;
 260         unsigned long kmap_offset;
 261         unsigned long kmap_num;
 262         SVGA3dCopyBox *box;
 263         unsigned box_count;
 264         void *virtual;
 265         bool dummy;
 266         struct vmw_dma_cmd {
 267                 SVGA3dCmdHeader header;
 268                 SVGA3dCmdSurfaceDMA dma;
 269         } *cmd;
 270         int i, ret;
 271
 272         cmd = container_of(header, struct vmw_dma_cmd, header);
 273
 274         /* No snooper installed */
 275         if (!srf->snooper.image)
 276                 return;
 277
 278         if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
 279                 DRM_ERROR("face and mipmap for cursors should never != 0\n");
 280                 return;
 281         }
 282
 283         if (cmd->header.size < 64) {
 284                 DRM_ERROR("at least one full copy box must be given\n");
 285                 return;
 286         }
 287
 288         box = (SVGA3dCopyBox *)&cmd[1];
 289         box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
 290                         sizeof(SVGA3dCopyBox);
 291
 292         if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
 293             box->x != 0    || box->y != 0    || box->z != 0    ||
 294             box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
 295             box->d != 1    || box_count != 1) {
 296                 /* TODO handle none page aligned offsets */
 297                 /* TODO handle more dst & src != 0 */
 298                 /* TODO handle more then one copy */
 299                 DRM_ERROR("Cant snoop dma request for cursor!\n");
 300                 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
 301                           box->srcx, box->srcy, box->srcz,
 302                           box->x, box->y, box->z,
 303                           box->w, box->h, box->d, box_count,
 304                           cmd->dma.guest.ptr.offset);
 305                 return;
 306         }
 307
 308         kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
 309         kmap_num = (64*64*4) >> PAGE_SHIFT;
 310
 311         ret = ttm_bo_reserve(bo, true, false, false, 0);
 312         if (unlikely(ret != 0)) {
 313                 DRM_ERROR("reserve failed\n");
 314                 return;
 315         }
 316
 317         ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
 318         if (unlikely(ret != 0))
 319                 goto err_unreserve;
 320
 321         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 322
 323         if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
 324                 memcpy(srf->snooper.image, virtual, 64*64*4);
 325         } else {
 326                 /* Image is unsigned pointer. */
 327                 for (i = 0; i < box->h; i++)
 328                         memcpy(srf->snooper.image + i * 64,
 329                                virtual + i * cmd->dma.guest.pitch,
 330                                box->w * 4);
 331         }
 332
 333         srf->snooper.age++;
 334
 335         /* we can't call this function from this function since execbuf has
 336          * reserved fifo space.
 337          *
 338          * if (srf->snooper.crtc)
 339          *      vmw_ldu_crtc_cursor_update_image(dev_priv,
 340          *                                       srf->snooper.image, 64, 64,
 341          *                                       du->hotspot_x, du->hotspot_y);
 342          */
 343
 344         ttm_bo_kunmap(&map);
 345 err_unreserve:
 346         ttm_bo_unreserve(bo);
 347 }
 348
 349 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
 350 {
 351         struct drm_device *dev = dev_priv->dev;
 352         struct vmw_display_unit *du;
 353         struct drm_crtc *crtc;
 354
 355         mutex_lock(&dev->mode_config.mutex);
 356
 357         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 358                 du = vmw_crtc_to_du(crtc);
 359                 if (!du->cursor_surface ||
 360                     du->cursor_age == du->cursor_surface->snooper.age)
 361                         continue;
 362
 363                 du->cursor_age = du->cursor_surface->snooper.age;
 364                 vmw_cursor_update_image(dev_priv,
 365                                         du->cursor_surface->snooper.image,
 366                                         64, 64, du->hotspot_x, du->hotspot_y);
 367         }
 368
 369         mutex_unlock(&dev->mode_config.mutex);
 370 }
 371
 372 /*
 373  * Generic framebuffer code
 374  */
 375
 376 int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
 377                                   struct drm_file *file_priv,
 378                                   unsigned int *handle)
 379 {
 380         if (handle)
 381                 *handle = 0;
 382
 383         return 0;
 384 }
 385
 386 /*
 387  * Surface framebuffer code
 388  */
 389
 390 #define vmw_framebuffer_to_vfbs(x) \
 391         container_of(x, struct vmw_framebuffer_surface, base.base)
 392
 393 struct vmw_framebuffer_surface {
 394         struct vmw_framebuffer base;
 395         struct vmw_surface *surface;
 396         struct vmw_dma_buffer *buffer;
 397         struct list_head head;
 398         struct drm_master *master;
 399 };
 400
 401 void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
 402 {
 403         struct vmw_framebuffer_surface *vfbs =
 404                 vmw_framebuffer_to_vfbs(framebuffer);
 405         struct vmw_master *vmaster = vmw_master(vfbs->master);
 406
 407
 408         mutex_lock(&vmaster->fb_surf_mutex);
 409         list_del(&vfbs->head);
 410         mutex_unlock(&vmaster->fb_surf_mutex);
 411
 412         drm_master_put(&vfbs->master);
 413         drm_framebuffer_cleanup(framebuffer);
 414         vmw_surface_unreference(&vfbs->surface);
 415         ttm_base_object_unref(&vfbs->base.user_obj);
 416
 417         kfree(vfbs);
 418 }
 419
 420 static int do_surface_dirty_sou(struct vmw_private *dev_priv,
 421                                 struct drm_file *file_priv,
 422                                 struct vmw_framebuffer *framebuffer,
 423                                 unsigned flags, unsigned color,
 424                                 struct drm_clip_rect *clips,
 425                                 unsigned num_clips, int inc,
 426                                 struct vmw_fence_obj **out_fence)
 427 {
 428         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 429         struct drm_clip_rect *clips_ptr;
 430         struct drm_clip_rect *tmp;
 431         struct drm_crtc *crtc;
 432         size_t fifo_size;
 433         int i, num_units;
 434         int ret = 0; /* silence warning */
 435         int left, right, top, bottom;
 436
 437         struct {
 438                 SVGA3dCmdHeader header;
 439                 SVGA3dCmdBlitSurfaceToScreen body;
 440         } *cmd;
 441         SVGASignedRect *blits;
 442
 443         num_units = 0;
 444         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
 445                             head) {
 446                 if (crtc->fb != &framebuffer->base)
 447                         continue;
 448                 units[num_units++] = vmw_crtc_to_du(crtc);
 449         }
 450
 451         BUG_ON(!clips || !num_clips);
 452
 453         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
 454         if (unlikely(tmp == NULL)) {
 455                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
 456                 return -ENOMEM;
 457         }
 458
 459         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
 460         cmd = kzalloc(fifo_size, GFP_KERNEL);
 461         if (unlikely(cmd == NULL)) {
 462                 DRM_ERROR("Temporary fifo memory alloc failed.\n");
 463                 ret = -ENOMEM;
 464                 goto out_free_tmp;
 465         }
 466
 467         /* setup blits pointer */
 468         blits = (SVGASignedRect *)&cmd[1];
 469
 470         /* initial clip region */
 471         left = clips->x1;
 472         right = clips->x2;
 473         top = clips->y1;
 474         bottom = clips->y2;
 475
 476         /* skip the first clip rect */
 477         for (i = 1, clips_ptr = clips + inc;
 478              i < num_clips; i++, clips_ptr += inc) {
 479                 left = min_t(int, left, (int)clips_ptr->x1);
 480                 right = max_t(int, right, (int)clips_ptr->x2);
 481                 top = min_t(int, top, (int)clips_ptr->y1);
 482                 bottom = max_t(int, bottom, (int)clips_ptr->y2);
 483         }
 484
 485         /* only need to do this once */
 486         memset(cmd, 0, fifo_size);
 487         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
 488         cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 489
 490         cmd->body.srcRect.left = left;
 491         cmd->body.srcRect.right = right;
 492         cmd->body.srcRect.top = top;
 493         cmd->body.srcRect.bottom = bottom;
 494
 495         clips_ptr = clips;
 496         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
 497                 tmp[i].x1 = clips_ptr->x1 - left;
 498                 tmp[i].x2 = clips_ptr->x2 - left;
 499                 tmp[i].y1 = clips_ptr->y1 - top;
 500                 tmp[i].y2 = clips_ptr->y2 - top;
 501         }
 502
 503         /* do per unit writing, reuse fifo for each */
 504         for (i = 0; i < num_units; i++) {
 505                 struct vmw_display_unit *unit = units[i];
 506                 struct vmw_clip_rect clip;
 507                 int num;
 508
 509                 clip.x1 = left - unit->crtc.x;
 510                 clip.y1 = top - unit->crtc.y;
 511                 clip.x2 = right - unit->crtc.x;
 512                 clip.y2 = bottom - unit->crtc.y;
 513
 514                 /* skip any crtcs that misses the clip region */
 515                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
 516                     clip.y1 >= unit->crtc.mode.vdisplay ||
 517                     clip.x2 <= 0 || clip.y2 <= 0)
 518                         continue;
 519
 520                 /*
 521                  * In order for the clip rects to be correctly scaled
 522                  * the src and dest rects needs to be the same size.
 523                  */
 524                 cmd->body.destRect.left = clip.x1;
 525                 cmd->body.destRect.right = clip.x2;
 526                 cmd->body.destRect.top = clip.y1;
 527                 cmd->body.destRect.bottom = clip.y2;
 528
 529                 /* create a clip rect of the crtc in dest coords */
 530                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
 531                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
 532                 clip.x1 = 0 - clip.x1;
 533                 clip.y1 = 0 - clip.y1;
 534
 535                 /* need to reset sid as it is changed by execbuf */
 536                 cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
 537                 cmd->body.destScreenId = unit->unit;
 538
 539                 /* clip and write blits to cmd stream */
 540                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
 541
 542                 /* if no cliprects hit skip this */
 543                 if (num == 0)
 544                         continue;
 545
 546                 /* only return the last fence */
 547                 if (out_fence && *out_fence)
 548                         vmw_fence_obj_unreference(out_fence);
 549
 550                 /* recalculate package length */
 551                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
 552                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 553                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 554                                           fifo_size, 0, NULL, out_fence);
 555
 556                 if (unlikely(ret != 0))
 557                         break;
 558         }
 559
 560
 561         kfree(cmd);
 562 out_free_tmp:
 563         kfree(tmp);
 564
 565         return ret;
 566 }
 567
 568 int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
 569                                   struct drm_file *file_priv,
 570                                   unsigned flags, unsigned color,
 571                                   struct drm_clip_rect *clips,
 572                                   unsigned num_clips)
 573 {
 574         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 575         struct vmw_master *vmaster = vmw_master(file_priv->master);
 576         struct vmw_framebuffer_surface *vfbs =
 577                 vmw_framebuffer_to_vfbs(framebuffer);
 578         struct drm_clip_rect norect;
 579         int ret, inc = 1;
 580
 581         if (unlikely(vfbs->master != file_priv->master))
 582                 return -EINVAL;
 583
 584         /* Require ScreenObject support for 3D */
 585         if (!dev_priv->sou_priv)
 586                 return -EINVAL;
 587
 588         ret = ttm_read_lock(&vmaster->lock, true);
 589         if (unlikely(ret != 0))
 590                 return ret;
 591
 592         if (!num_clips) {
 593                 num_clips = 1;
 594                 clips = &norect;
 595                 norect.x1 = norect.y1 = 0;
 596                 norect.x2 = framebuffer->width;
 597                 norect.y2 = framebuffer->height;
 598         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 599                 num_clips /= 2;
 600                 inc = 2; /* skip source rects */
 601         }
 602
 603         ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
 604                                    flags, color,
 605                                    clips, num_clips, inc, NULL);
 606
 607         ttm_read_unlock(&vmaster->lock);
 608         return 0;
 609 }
 610
 611 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
 612         .destroy = vmw_framebuffer_surface_destroy,
 613         .dirty = vmw_framebuffer_surface_dirty,
 614         .create_handle = vmw_framebuffer_create_handle,
 615 };
 616
 617 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
 618                                            struct drm_file *file_priv,
 619                                            struct vmw_surface *surface,
 620                                            struct vmw_framebuffer **out,
 621                                            const struct drm_mode_fb_cmd
 622                                            *mode_cmd)
 623
 624 {
 625         struct drm_device *dev = dev_priv->dev;
 626         struct vmw_framebuffer_surface *vfbs;
 627         enum SVGA3dSurfaceFormat format;
 628         struct vmw_master *vmaster = vmw_master(file_priv->master);
 629         int ret;
 630
 631         /* 3D is only supported on HWv8 hosts which supports screen objects */
 632         if (!dev_priv->sou_priv)
 633                 return -ENOSYS;
 634
 635         /*
 636          * Sanity checks.
 637          */
 638
 639         /* Surface must be marked as a scanout. */
 640         if (unlikely(!surface->scanout))
 641                 return -EINVAL;
 642
 643         if (unlikely(surface->mip_levels[0] != 1 ||
 644                      surface->num_sizes != 1 ||
 645                      surface->sizes[0].width < mode_cmd->width ||
 646                      surface->sizes[0].height < mode_cmd->height ||
 647                      surface->sizes[0].depth != 1)) {
 648                 DRM_ERROR("Incompatible surface dimensions "
 649                           "for requested mode.\n");
 650                 return -EINVAL;
 651         }
 652
 653         switch (mode_cmd->depth) {
 654         case 32:
 655                 format = SVGA3D_A8R8G8B8;
 656                 break;
 657         case 24:
 658                 format = SVGA3D_X8R8G8B8;
 659                 break;
 660         case 16:
 661                 format = SVGA3D_R5G6B5;
 662                 break;
 663         case 15:
 664                 format = SVGA3D_A1R5G5B5;
 665                 break;
 666         case 8:
 667                 format = SVGA3D_LUMINANCE8;
 668                 break;
 669         default:
 670                 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 671                 return -EINVAL;
 672         }
 673
 674         if (unlikely(format != surface->format)) {
 675                 DRM_ERROR("Invalid surface format for requested mode.\n");
 676                 return -EINVAL;
 677         }
 678
 679         vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
 680         if (!vfbs) {
 681                 ret = -ENOMEM;
 682                 goto out_err1;
 683         }
 684
 685         ret = drm_framebuffer_init(dev, &vfbs->base.base,
 686                                    &vmw_framebuffer_surface_funcs);
 687         if (ret)
 688                 goto out_err2;
 689
 690         if (!vmw_surface_reference(surface)) {
 691                 DRM_ERROR("failed to reference surface %p\n", surface);
 692                 goto out_err3;
 693         }
 694
 695         /* XXX get the first 3 from the surface info */
 696         vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
 697         vfbs->base.base.pitches[0] = mode_cmd->pitch;
 698         vfbs->base.base.depth = mode_cmd->depth;
 699         vfbs->base.base.width = mode_cmd->width;
 700         vfbs->base.base.height = mode_cmd->height;
 701         vfbs->surface = surface;
 702         vfbs->base.user_handle = mode_cmd->handle;
 703         vfbs->master = drm_master_get(file_priv->master);
 704
 705         mutex_lock(&vmaster->fb_surf_mutex);
 706         list_add_tail(&vfbs->head, &vmaster->fb_surf);
 707         mutex_unlock(&vmaster->fb_surf_mutex);
 708
 709         *out = &vfbs->base;
 710
 711         return 0;
 712
 713 out_err3:
 714         drm_framebuffer_cleanup(&vfbs->base.base);
 715 out_err2:
 716         kfree(vfbs);
 717 out_err1:
 718         return ret;
 719 }
 720
 721 /*
 722  * Dmabuf framebuffer code
 723  */
 724
 725 #define vmw_framebuffer_to_vfbd(x) \
 726         container_of(x, struct vmw_framebuffer_dmabuf, base.base)
 727
 728 struct vmw_framebuffer_dmabuf {
 729         struct vmw_framebuffer base;
 730         struct vmw_dma_buffer *buffer;
 731 };
 732
 733 void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
 734 {
 735         struct vmw_framebuffer_dmabuf *vfbd =
 736                 vmw_framebuffer_to_vfbd(framebuffer);
 737
 738         drm_framebuffer_cleanup(framebuffer);
 739         vmw_dmabuf_unreference(&vfbd->buffer);
 740         ttm_base_object_unref(&vfbd->base.user_obj);
 741
 742         kfree(vfbd);
 743 }
 744
 745 static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
 746                                struct vmw_framebuffer *framebuffer,
 747                                unsigned flags, unsigned color,
 748                                struct drm_clip_rect *clips,
 749                                unsigned num_clips, int increment)
 750 {
 751         size_t fifo_size;
 752         int i;
 753
 754         struct {
 755                 uint32_t header;
 756                 SVGAFifoCmdUpdate body;
 757         } *cmd;
 758
 759         fifo_size = sizeof(*cmd) * num_clips;
 760         cmd = vmw_fifo_reserve(dev_priv, fifo_size);
 761         if (unlikely(cmd == NULL)) {
 762                 DRM_ERROR("Fifo reserve failed.\n");
 763                 return -ENOMEM;
 764         }
 765
 766         memset(cmd, 0, fifo_size);
 767         for (i = 0; i < num_clips; i++, clips += increment) {
 768                 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
 769                 cmd[i].body.x = cpu_to_le32(clips->x1);
 770                 cmd[i].body.y = cpu_to_le32(clips->y1);
 771                 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
 772                 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
 773         }
 774
 775         vmw_fifo_commit(dev_priv, fifo_size);
 776         return 0;
 777 }
 778
 779 static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
 780                                   struct vmw_private *dev_priv,
 781                                   struct vmw_framebuffer *framebuffer)
 782 {
 783         int depth = framebuffer->base.depth;
 784         size_t fifo_size;
 785         int ret;
 786
 787         struct {
 788                 uint32_t header;
 789                 SVGAFifoCmdDefineGMRFB body;
 790         } *cmd;
 791
 792         /* Emulate RGBA support, contrary to svga_reg.h this is not
 793          * supported by hosts. This is only a problem if we are reading
 794          * this value later and expecting what we uploaded back.
 795          */
 796         if (depth == 32)
 797                 depth = 24;
 798
 799         fifo_size = sizeof(*cmd);
 800         cmd = kmalloc(fifo_size, GFP_KERNEL);
 801         if (unlikely(cmd == NULL)) {
 802                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 803                 return -ENOMEM;
 804         }
 805
 806         memset(cmd, 0, fifo_size);
 807         cmd->header = SVGA_CMD_DEFINE_GMRFB;
 808         cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
 809         cmd->body.format.colorDepth = depth;
 810         cmd->body.format.reserved = 0;
 811         cmd->body.bytesPerLine = framebuffer->base.pitches[0];
 812         cmd->body.ptr.gmrId = framebuffer->user_handle;
 813         cmd->body.ptr.offset = 0;
 814
 815         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 816                                   fifo_size, 0, NULL, NULL);
 817
 818         kfree(cmd);
 819
 820         return ret;
 821 }
 822
 823 static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
 824                                struct vmw_private *dev_priv,
 825                                struct vmw_framebuffer *framebuffer,
 826                                unsigned flags, unsigned color,
 827                                struct drm_clip_rect *clips,
 828                                unsigned num_clips, int increment,
 829                                struct vmw_fence_obj **out_fence)
 830 {
 831         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 832         struct drm_clip_rect *clips_ptr;
 833         int i, k, num_units, ret;
 834         struct drm_crtc *crtc;
 835         size_t fifo_size;
 836
 837         struct {
 838                 uint32_t header;
 839                 SVGAFifoCmdBlitGMRFBToScreen body;
 840         } *blits;
 841
 842         ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
 843         if (unlikely(ret != 0))
 844                 return ret; /* define_gmrfb prints warnings */
 845
 846         fifo_size = sizeof(*blits) * num_clips;
 847         blits = kmalloc(fifo_size, GFP_KERNEL);
 848         if (unlikely(blits == NULL)) {
 849                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 850                 return -ENOMEM;
 851         }
 852
 853         num_units = 0;
 854         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
 855                 if (crtc->fb != &framebuffer->base)
 856                         continue;
 857                 units[num_units++] = vmw_crtc_to_du(crtc);
 858         }
 859
 860         for (k = 0; k < num_units; k++) {
 861                 struct vmw_display_unit *unit = units[k];
 862                 int hit_num = 0;
 863
 864                 clips_ptr = clips;
 865                 for (i = 0; i < num_clips; i++, clips_ptr += increment) {
 866                         int clip_x1 = clips_ptr->x1 - unit->crtc.x;
 867                         int clip_y1 = clips_ptr->y1 - unit->crtc.y;
 868                         int clip_x2 = clips_ptr->x2 - unit->crtc.x;
 869                         int clip_y2 = clips_ptr->y2 - unit->crtc.y;
 870                         int move_x, move_y;
 871
 872                         /* skip any crtcs that misses the clip region */
 873                         if (clip_x1 >= unit->crtc.mode.hdisplay ||
 874                             clip_y1 >= unit->crtc.mode.vdisplay ||
 875                             clip_x2 <= 0 || clip_y2 <= 0)
 876                                 continue;
 877
 878                         /* clip size to crtc size */
 879                         clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
 880                         clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
 881
 882                         /* translate both src and dest to bring clip into screen */
 883                         move_x = min_t(int, clip_x1, 0);
 884                         move_y = min_t(int, clip_y1, 0);
 885
 886                         /* actual translate done here */
 887                         blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
 888                         blits[hit_num].body.destScreenId = unit->unit;
 889                         blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
 890                         blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
 891                         blits[hit_num].body.destRect.left = clip_x1 - move_x;
 892                         blits[hit_num].body.destRect.top = clip_y1 - move_y;
 893                         blits[hit_num].body.destRect.right = clip_x2;
 894                         blits[hit_num].body.destRect.bottom = clip_y2;
 895                         hit_num++;
 896                 }
 897
 898                 /* no clips hit the crtc */
 899                 if (hit_num == 0)
 900                         continue;
 901
 902                 /* only return the last fence */
 903                 if (out_fence && *out_fence)
 904                         vmw_fence_obj_unreference(out_fence);
 905
 906                 fifo_size = sizeof(*blits) * hit_num;
 907                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
 908                                           fifo_size, 0, NULL, out_fence);
 909
 910                 if (unlikely(ret != 0))
 911                         break;
 912         }
 913
 914         kfree(blits);
 915
 916         return ret;
 917 }
 918
 919 int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
 920                                  struct drm_file *file_priv,
 921                                  unsigned flags, unsigned color,
 922                                  struct drm_clip_rect *clips,
 923                                  unsigned num_clips)
 924 {
 925         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 926         struct vmw_master *vmaster = vmw_master(file_priv->master);
 927         struct vmw_framebuffer_dmabuf *vfbd =
 928                 vmw_framebuffer_to_vfbd(framebuffer);
 929         struct drm_clip_rect norect;
 930         int ret, increment = 1;
 931
 932         ret = ttm_read_lock(&vmaster->lock, true);
 933         if (unlikely(ret != 0))
 934                 return ret;
 935
 936         if (!num_clips) {
 937                 num_clips = 1;
 938                 clips = &norect;
 939                 norect.x1 = norect.y1 = 0;
 940                 norect.x2 = framebuffer->width;
 941                 norect.y2 = framebuffer->height;
 942         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 943                 num_clips /= 2;
 944                 increment = 2;
 945         }
 946
 947         if (dev_priv->ldu_priv) {
 948                 ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
 949                                           flags, color,
 950                                           clips, num_clips, increment);
 951         } else {
 952                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
 953                                           flags, color,
 954                                           clips, num_clips, increment, NULL);
 955         }
 956
 957         ttm_read_unlock(&vmaster->lock);
 958         return ret;
 959 }
 960
 961 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
 962         .destroy = vmw_framebuffer_dmabuf_destroy,
 963         .dirty = vmw_framebuffer_dmabuf_dirty,
 964         .create_handle = vmw_framebuffer_create_handle,
 965 };
 966
 967 /**
 968  * Pin the dmabuffer to the start of vram.
 969  */
 970 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
 971 {
 972         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 973         struct vmw_framebuffer_dmabuf *vfbd =
 974                 vmw_framebuffer_to_vfbd(&vfb->base);
 975         int ret;
 976
 977         /* This code should not be used with screen objects */
 978         BUG_ON(dev_priv->sou_priv);
 979
 980         vmw_overlay_pause_all(dev_priv);
 981
 982         ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
 983
 984         vmw_overlay_resume_all(dev_priv);
 985
 986         WARN_ON(ret != 0);
 987
 988         return 0;
 989 }
 990
 991 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
 992 {
 993         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 994         struct vmw_framebuffer_dmabuf *vfbd =
 995                 vmw_framebuffer_to_vfbd(&vfb->base);
 996
 997         if (!vfbd->buffer) {
 998                 WARN_ON(!vfbd->buffer);
 999                 return 0;
1000         }
1001
1002         return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
1003 }
1004
1005 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
1006                                           struct vmw_dma_buffer *dmabuf,
1007                                           struct vmw_framebuffer **out,
1008                                           const struct drm_mode_fb_cmd
1009                                           *mode_cmd)
1010
1011 {
1012         struct drm_device *dev = dev_priv->dev;
1013         struct vmw_framebuffer_dmabuf *vfbd;
1014         unsigned int requested_size;
1015         int ret;
1016
1017         requested_size = mode_cmd->height * mode_cmd->pitch;
1018         if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1019                 DRM_ERROR("Screen buffer object size is too small "
1020                           "for requested mode.\n");
1021                 return -EINVAL;
1022         }
1023
1024         /* Limited framebuffer color depth support for screen objects */
1025         if (dev_priv->sou_priv) {
1026                 switch (mode_cmd->depth) {
1027                 case 32:
1028                 case 24:
1029                         /* Only support 32 bpp for 32 and 24 depth fbs */
1030                         if (mode_cmd->bpp == 32)
1031                                 break;
1032
1033                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1034                                   mode_cmd->depth, mode_cmd->bpp);
1035                         return -EINVAL;
1036                 case 16:
1037                 case 15:
1038                         /* Only support 16 bpp for 16 and 15 depth fbs */
1039                         if (mode_cmd->bpp == 16)
1040                                 break;
1041
1042                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1043                                   mode_cmd->depth, mode_cmd->bpp);
1044                         return -EINVAL;
1045                 default:
1046                         DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
1047                         return -EINVAL;
1048                 }
1049         }
1050
1051         vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1052         if (!vfbd) {
1053                 ret = -ENOMEM;
1054                 goto out_err1;
1055         }
1056
1057         ret = drm_framebuffer_init(dev, &vfbd->base.base,
1058                                    &vmw_framebuffer_dmabuf_funcs);
1059         if (ret)
1060                 goto out_err2;
1061
1062         if (!vmw_dmabuf_reference(dmabuf)) {
1063                 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
1064                 goto out_err3;
1065         }
1066
1067         vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
1068         vfbd->base.base.pitches[0] = mode_cmd->pitch;
1069         vfbd->base.base.depth = mode_cmd->depth;
1070         vfbd->base.base.width = mode_cmd->width;
1071         vfbd->base.base.height = mode_cmd->height;
1072         if (!dev_priv->sou_priv) {
1073                 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
1074                 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
1075         }
1076         vfbd->base.dmabuf = true;
1077         vfbd->buffer = dmabuf;
1078         vfbd->base.user_handle = mode_cmd->handle;
1079         *out = &vfbd->base;
1080
1081         return 0;
1082
1083 out_err3:
1084         drm_framebuffer_cleanup(&vfbd->base.base);
1085 out_err2:
1086         kfree(vfbd);
1087 out_err1:
1088         return ret;
1089 }
1090
1091 /*
1092  * Generic Kernel modesetting functions
1093  */
1094
1095 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1096                                                  struct drm_file *file_priv,
1097                                                  struct drm_mode_fb_cmd2 *mode_cmd2)
1098 {
1099         struct vmw_private *dev_priv = vmw_priv(dev);
1100         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1101         struct vmw_framebuffer *vfb = NULL;
1102         struct vmw_surface *surface = NULL;
1103         struct vmw_dma_buffer *bo = NULL;
1104         struct ttm_base_object *user_obj;
1105         struct drm_mode_fb_cmd mode_cmd;
1106         int ret;
1107
1108         mode_cmd.width = mode_cmd2->width;
1109         mode_cmd.height = mode_cmd2->height;
1110         mode_cmd.pitch = mode_cmd2->pitches[0];
1111         mode_cmd.handle = mode_cmd2->handles[0];
1112         drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
1113                                     &mode_cmd.bpp);
1114
1115         /**
1116          * This code should be conditioned on Screen Objects not being used.
1117          * If screen objects are used, we can allocate a GMR to hold the
1118          * requested framebuffer.
1119          */
1120
1121         if (!vmw_kms_validate_mode_vram(dev_priv,
1122                                         mode_cmd.pitch,
1123                                         mode_cmd.height)) {
1124                 DRM_ERROR("VRAM size is too small for requested mode.\n");
1125                 return ERR_PTR(-ENOMEM);
1126         }
1127
1128         /*
1129          * Take a reference on the user object of the resource
1130          * backing the kms fb. This ensures that user-space handle
1131          * lookups on that resource will always work as long as
1132          * it's registered with a kms framebuffer. This is important,
1133          * since vmw_execbuf_process identifies resources in the
1134          * command stream using user-space handles.
1135          */
1136
1137         user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
1138         if (unlikely(user_obj == NULL)) {
1139                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1140                 return ERR_PTR(-ENOENT);
1141         }
1142
1143         /**
1144          * End conditioned code.
1145          */
1146
1147         /* returns either a dmabuf or surface */
1148         ret = vmw_user_lookup_handle(dev_priv, tfile,
1149                                      mode_cmd.handle,
1150                                      &surface, &bo);
1151         if (ret)
1152                 goto err_out;
1153
1154         /* Create the new framebuffer depending one what we got back */
1155         if (bo)
1156                 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1157                                                      &mode_cmd);
1158         else if (surface)
1159                 ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
1160                                                       surface, &vfb, &mode_cmd);
1161         else
1162                 BUG();
1163
1164 err_out:
1165         /* vmw_user_lookup_handle takes one ref so does new_fb */
1166         if (bo)
1167                 vmw_dmabuf_unreference(&bo);
1168         if (surface)
1169                 vmw_surface_unreference(&surface);
1170
1171         if (ret) {
1172                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1173                 ttm_base_object_unref(&user_obj);
1174                 return ERR_PTR(ret);
1175         } else
1176                 vfb->user_obj = user_obj;
1177
1178         return &vfb->base;
1179 }
1180
1181 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1182         .fb_create = vmw_kms_fb_create,
1183 };
1184
1185 int vmw_kms_present(struct vmw_private *dev_priv,
1186                     struct drm_file *file_priv,
1187                     struct vmw_framebuffer *vfb,
1188                     struct vmw_surface *surface,
1189                     uint32_t sid,
1190                     int32_t destX, int32_t destY,
1191                     struct drm_vmw_rect *clips,
1192                     uint32_t num_clips)
1193 {
1194         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1195         struct drm_clip_rect *tmp;
1196         struct drm_crtc *crtc;
1197         size_t fifo_size;
1198         int i, k, num_units;
1199         int ret = 0; /* silence warning */
1200         int left, right, top, bottom;
1201
1202         struct {
1203                 SVGA3dCmdHeader header;
1204                 SVGA3dCmdBlitSurfaceToScreen body;
1205         } *cmd;
1206         SVGASignedRect *blits;
1207
1208         num_units = 0;
1209         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1210                 if (crtc->fb != &vfb->base)
1211                         continue;
1212                 units[num_units++] = vmw_crtc_to_du(crtc);
1213         }
1214
1215         BUG_ON(surface == NULL);
1216         BUG_ON(!clips || !num_clips);
1217
1218         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1219         if (unlikely(tmp == NULL)) {
1220                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1221                 return -ENOMEM;
1222         }
1223
1224         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1225         cmd = kmalloc(fifo_size, GFP_KERNEL);
1226         if (unlikely(cmd == NULL)) {
1227                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1228                 ret = -ENOMEM;
1229                 goto out_free_tmp;
1230         }
1231
1232         left = clips->x;
1233         right = clips->x + clips->w;
1234         top = clips->y;
1235         bottom = clips->y + clips->h;
1236
1237         for (i = 1; i < num_clips; i++) {
1238                 left = min_t(int, left, (int)clips[i].x);
1239                 right = max_t(int, right, (int)clips[i].x + clips[i].w);
1240                 top = min_t(int, top, (int)clips[i].y);
1241                 bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1242         }
1243
1244         /* only need to do this once */
1245         memset(cmd, 0, fifo_size);
1246         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1247
1248         blits = (SVGASignedRect *)&cmd[1];
1249
1250         cmd->body.srcRect.left = left;
1251         cmd->body.srcRect.right = right;
1252         cmd->body.srcRect.top = top;
1253         cmd->body.srcRect.bottom = bottom;
1254
1255         for (i = 0; i < num_clips; i++) {
1256                 tmp[i].x1 = clips[i].x - left;
1257                 tmp[i].x2 = clips[i].x + clips[i].w - left;
1258                 tmp[i].y1 = clips[i].y - top;
1259                 tmp[i].y2 = clips[i].y + clips[i].h - top;
1260         }
1261
1262         for (k = 0; k < num_units; k++) {
1263                 struct vmw_display_unit *unit = units[k];
1264                 struct vmw_clip_rect clip;
1265                 int num;
1266
1267                 clip.x1 = left + destX - unit->crtc.x;
1268                 clip.y1 = top + destY - unit->crtc.y;
1269                 clip.x2 = right + destX - unit->crtc.x;
1270                 clip.y2 = bottom + destY - unit->crtc.y;
1271
1272                 /* skip any crtcs that misses the clip region */
1273                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
1274                     clip.y1 >= unit->crtc.mode.vdisplay ||
1275                     clip.x2 <= 0 || clip.y2 <= 0)
1276                         continue;
1277
1278                 /*
1279                  * In order for the clip rects to be correctly scaled
1280                  * the src and dest rects needs to be the same size.
1281                  */
1282                 cmd->body.destRect.left = clip.x1;
1283                 cmd->body.destRect.right = clip.x2;
1284                 cmd->body.destRect.top = clip.y1;
1285                 cmd->body.destRect.bottom = clip.y2;
1286
1287                 /* create a clip rect of the crtc in dest coords */
1288                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1289                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1290                 clip.x1 = 0 - clip.x1;
1291                 clip.y1 = 0 - clip.y1;
1292
1293                 /* need to reset sid as it is changed by execbuf */
1294                 cmd->body.srcImage.sid = sid;
1295                 cmd->body.destScreenId = unit->unit;
1296
1297                 /* clip and write blits to cmd stream */
1298                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1299
1300                 /* if no cliprects hit skip this */
1301                 if (num == 0)
1302                         continue;
1303
1304                 /* recalculate package length */
1305                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1306                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1307                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1308                                           fifo_size, 0, NULL, NULL);
1309
1310                 if (unlikely(ret != 0))
1311                         break;
1312         }
1313
1314         kfree(cmd);
1315 out_free_tmp:
1316         kfree(tmp);
1317
1318         return ret;
1319 }
1320
1321 int vmw_kms_readback(struct vmw_private *dev_priv,
1322                      struct drm_file *file_priv,
1323                      struct vmw_framebuffer *vfb,
1324                      struct drm_vmw_fence_rep __user *user_fence_rep,
1325                      struct drm_vmw_rect *clips,
1326                      uint32_t num_clips)
1327 {
1328         struct vmw_framebuffer_dmabuf *vfbd =
1329                 vmw_framebuffer_to_vfbd(&vfb->base);
1330         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1331         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1332         struct drm_crtc *crtc;
1333         size_t fifo_size;
1334         int i, k, ret, num_units, blits_pos;
1335
1336         struct {
1337                 uint32_t header;
1338                 SVGAFifoCmdDefineGMRFB body;
1339         } *cmd;
1340         struct {
1341                 uint32_t header;
1342                 SVGAFifoCmdBlitScreenToGMRFB body;
1343         } *blits;
1344
1345         num_units = 0;
1346         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1347                 if (crtc->fb != &vfb->base)
1348                         continue;
1349                 units[num_units++] = vmw_crtc_to_du(crtc);
1350         }
1351
1352         BUG_ON(dmabuf == NULL);
1353         BUG_ON(!clips || !num_clips);
1354
1355         /* take a safe guess at fifo size */
1356         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1357         cmd = kmalloc(fifo_size, GFP_KERNEL);
1358         if (unlikely(cmd == NULL)) {
1359                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1360                 return -ENOMEM;
1361         }
1362
1363         memset(cmd, 0, fifo_size);
1364         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1365         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1366         cmd->body.format.colorDepth = vfb->base.depth;
1367         cmd->body.format.reserved = 0;
1368         cmd->body.bytesPerLine = vfb->base.pitches[0];
1369         cmd->body.ptr.gmrId = vfb->user_handle;
1370         cmd->body.ptr.offset = 0;
1371
1372         blits = (void *)&cmd[1];
1373         blits_pos = 0;
1374         for (i = 0; i < num_units; i++) {
1375                 struct drm_vmw_rect *c = clips;
1376                 for (k = 0; k < num_clips; k++, c++) {
1377                         /* transform clip coords to crtc origin based coords */
1378                         int clip_x1 = c->x - units[i]->crtc.x;
1379                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1380                         int clip_y1 = c->y - units[i]->crtc.y;
1381                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1382                         int dest_x = c->x;
1383                         int dest_y = c->y;
1384
1385                         /* compensate for clipping, we negate
1386                          * a negative number and add that.
1387                          */
1388                         if (clip_x1 < 0)
1389                                 dest_x += -clip_x1;
1390                         if (clip_y1 < 0)
1391                                 dest_y += -clip_y1;
1392
1393                         /* clip */
1394                         clip_x1 = max(clip_x1, 0);
1395                         clip_y1 = max(clip_y1, 0);
1396                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1397                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1398
1399                         /* and cull any rects that misses the crtc */
1400                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1401                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1402                             clip_x2 <= 0 || clip_y2 <= 0)
1403                                 continue;
1404
1405                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1406                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1407                         blits[blits_pos].body.destOrigin.x = dest_x;
1408                         blits[blits_pos].body.destOrigin.y = dest_y;
1409
1410                         blits[blits_pos].body.srcRect.left = clip_x1;
1411                         blits[blits_pos].body.srcRect.top = clip_y1;
1412                         blits[blits_pos].body.srcRect.right = clip_x2;
1413                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1414                         blits_pos++;
1415                 }
1416         }
1417         /* reset size here and use calculated exact size from loops */
1418         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1419
1420         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1421                                   0, user_fence_rep, NULL);
1422
1423         kfree(cmd);
1424
1425         return ret;
1426 }
1427
1428 int vmw_kms_init(struct vmw_private *dev_priv)
1429 {
1430         struct drm_device *dev = dev_priv->dev;
1431         int ret;
1432
1433         drm_mode_config_init(dev);
1434         dev->mode_config.funcs = &vmw_kms_funcs;
1435         dev->mode_config.min_width = 1;
1436         dev->mode_config.min_height = 1;
1437         /* assumed largest fb size */
1438         dev->mode_config.max_width = 8192;
1439         dev->mode_config.max_height = 8192;
1440
1441         ret = vmw_kms_init_screen_object_display(dev_priv);
1442         if (ret) /* Fallback */
1443                 (void)vmw_kms_init_legacy_display_system(dev_priv);
1444
1445         return 0;
1446 }
1447
1448 int vmw_kms_close(struct vmw_private *dev_priv)
1449 {
1450         /*
1451          * Docs says we should take the lock before calling this function
1452          * but since it destroys encoders and our destructor calls
1453          * drm_encoder_cleanup which takes the lock we deadlock.
1454          */
1455         drm_mode_config_cleanup(dev_priv->dev);
1456         if (dev_priv->sou_priv)
1457                 vmw_kms_close_screen_object_display(dev_priv);
1458         else
1459                 vmw_kms_close_legacy_display_system(dev_priv);
1460         return 0;
1461 }
1462
1463 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1464                                 struct drm_file *file_priv)
1465 {
1466         struct drm_vmw_cursor_bypass_arg *arg = data;
1467         struct vmw_display_unit *du;
1468         struct drm_mode_object *obj;
1469         struct drm_crtc *crtc;
1470         int ret = 0;
1471
1472
1473         mutex_lock(&dev->mode_config.mutex);
1474         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1475
1476                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1477                         du = vmw_crtc_to_du(crtc);
1478                         du->hotspot_x = arg->xhot;
1479                         du->hotspot_y = arg->yhot;
1480                 }
1481
1482                 mutex_unlock(&dev->mode_config.mutex);
1483                 return 0;
1484         }
1485
1486         obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
1487         if (!obj) {
1488                 ret = -EINVAL;
1489                 goto out;
1490         }
1491
1492         crtc = obj_to_crtc(obj);
1493         du = vmw_crtc_to_du(crtc);
1494
1495         du->hotspot_x = arg->xhot;
1496         du->hotspot_y = arg->yhot;
1497
1498 out:
1499         mutex_unlock(&dev->mode_config.mutex);
1500
1501         return ret;
1502 }
1503
1504 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1505                         unsigned width, unsigned height, unsigned pitch,
1506                         unsigned bpp, unsigned depth)
1507 {
1508         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1509                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1510         else if (vmw_fifo_have_pitchlock(vmw_priv))
1511                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1512         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1513         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1514         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1515
1516         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1517                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1518                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1519                 return -EINVAL;
1520         }
1521
1522         return 0;
1523 }
1524
1525 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1526 {
1527         struct vmw_vga_topology_state *save;
1528         uint32_t i;
1529
1530         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1531         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1532         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1533         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1534                 vmw_priv->vga_pitchlock =
1535                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1536         else if (vmw_fifo_have_pitchlock(vmw_priv))
1537                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1538                                                        SVGA_FIFO_PITCHLOCK);
1539
1540         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1541                 return 0;
1542
1543         vmw_priv->num_displays = vmw_read(vmw_priv,
1544                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1545
1546         if (vmw_priv->num_displays == 0)
1547                 vmw_priv->num_displays = 1;
1548
1549         for (i = 0; i < vmw_priv->num_displays; ++i) {
1550                 save = &vmw_priv->vga_save[i];
1551                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1552                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1553                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1554                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1555                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1556                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1557                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1558                 if (i == 0 && vmw_priv->num_displays == 1 &&
1559                     save->width == 0 && save->height == 0) {
1560
1561                         /*
1562                          * It should be fairly safe to assume that these
1563                          * values are uninitialized.
1564                          */
1565
1566                         save->width = vmw_priv->vga_width - save->pos_x;
1567                         save->height = vmw_priv->vga_height - save->pos_y;
1568                 }
1569         }
1570
1571         return 0;
1572 }
1573
1574 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1575 {
1576         struct vmw_vga_topology_state *save;
1577         uint32_t i;
1578
1579         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1580         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1581         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1582         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1583                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1584                           vmw_priv->vga_pitchlock);
1585         else if (vmw_fifo_have_pitchlock(vmw_priv))
1586                 iowrite32(vmw_priv->vga_pitchlock,
1587                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1588
1589         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1590                 return 0;
1591
1592         for (i = 0; i < vmw_priv->num_displays; ++i) {
1593                 save = &vmw_priv->vga_save[i];
1594                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1595                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1596                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1597                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1598                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1599                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1600                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1601         }
1602
1603         return 0;
1604 }
1605
1606 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1607                                 uint32_t pitch,
1608                                 uint32_t height)
1609 {
1610         return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1611 }
1612
1613
1614 /**
1615  * Function called by DRM code called with vbl_lock held.
1616  */
1617 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1618 {
1619         return 0;
1620 }
1621
1622 /**
1623  * Function called by DRM code called with vbl_lock held.
1624  */
1625 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1626 {
1627         return -ENOSYS;
1628 }
1629
1630 /**
1631  * Function called by DRM code called with vbl_lock held.
1632  */
1633 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1634 {
1635 }
1636
1637
1638 /*
1639  * Small shared kms functions.
1640  */
1641
1642 int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1643                          struct drm_vmw_rect *rects)
1644 {
1645         struct drm_device *dev = dev_priv->dev;
1646         struct vmw_display_unit *du;
1647         struct drm_connector *con;
1648
1649         mutex_lock(&dev->mode_config.mutex);
1650
1651 #if 0
1652         {
1653                 unsigned int i;
1654
1655                 DRM_INFO("%s: new layout ", __func__);
1656                 for (i = 0; i < num; i++)
1657                         DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1658                                  rects[i].w, rects[i].h);
1659                 DRM_INFO("\n");
1660         }
1661 #endif
1662
1663         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1664                 du = vmw_connector_to_du(con);
1665                 if (num > du->unit) {
1666                         du->pref_width = rects[du->unit].w;
1667                         du->pref_height = rects[du->unit].h;
1668                         du->pref_active = true;
1669                         du->gui_x = rects[du->unit].x;
1670                         du->gui_y = rects[du->unit].y;
1671                 } else {
1672                         du->pref_width = 800;
1673                         du->pref_height = 600;
1674                         du->pref_active = false;
1675                 }
1676                 con->status = vmw_du_connector_detect(con, true);
1677         }
1678
1679         mutex_unlock(&dev->mode_config.mutex);
1680
1681         return 0;
1682 }
1683
1684 int vmw_du_page_flip(struct drm_crtc *crtc,
1685                      struct drm_framebuffer *fb,
1686                      struct drm_pending_vblank_event *event)
1687 {
1688         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1689         struct drm_framebuffer *old_fb = crtc->fb;
1690         struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
1691         struct drm_file *file_priv = event->base.file_priv;
1692         struct vmw_fence_obj *fence = NULL;
1693         struct drm_clip_rect clips;
1694         int ret;
1695
1696         /* require ScreenObject support for page flipping */
1697         if (!dev_priv->sou_priv)
1698                 return -ENOSYS;
1699
1700         if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
1701                 return -EINVAL;
1702
1703         crtc->fb = fb;
1704
1705         /* do a full screen dirty update */
1706         clips.x1 = clips.y1 = 0;
1707         clips.x2 = fb->width;
1708         clips.y2 = fb->height;
1709
1710         if (vfb->dmabuf)
1711                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
1712                                           0, 0, &clips, 1, 1, &fence);
1713         else
1714                 ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
1715                                            0, 0, &clips, 1, 1, &fence);
1716
1717
1718         if (ret != 0)
1719                 goto out_no_fence;
1720         if (!fence) {
1721                 ret = -EINVAL;
1722                 goto out_no_fence;
1723         }
1724
1725         ret = vmw_event_fence_action_queue(file_priv, fence,
1726                                            &event->base,
1727                                            &event->event.tv_sec,
1728                                            &event->event.tv_usec,
1729                                            true);
1730
1731         /*
1732          * No need to hold on to this now. The only cleanup
1733          * we need to do if we fail is unref the fence.
1734          */
1735         vmw_fence_obj_unreference(&fence);
1736
1737         if (vmw_crtc_to_du(crtc)->is_implicit)
1738                 vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
1739
1740         return ret;
1741
1742 out_no_fence:
1743         crtc->fb = old_fb;
1744         return ret;
1745 }
1746
1747
1748 void vmw_du_crtc_save(struct drm_crtc *crtc)
1749 {
1750 }
1751
1752 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1753 {
1754 }
1755
1756 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1757                            u16 *r, u16 *g, u16 *b,
1758                            uint32_t start, uint32_t size)
1759 {
1760         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1761         int i;
1762
1763         for (i = 0; i < size; i++) {
1764                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1765                           r[i], g[i], b[i]);
1766                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1767                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1768                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1769         }
1770 }
1771
1772 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1773 {
1774 }
1775
1776 void vmw_du_connector_save(struct drm_connector *connector)
1777 {
1778 }
1779
1780 void vmw_du_connector_restore(struct drm_connector *connector)
1781 {
1782 }
1783
1784 enum drm_connector_status
1785 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1786 {
1787         uint32_t num_displays;
1788         struct drm_device *dev = connector->dev;
1789         struct vmw_private *dev_priv = vmw_priv(dev);
1790         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1791
1792         mutex_lock(&dev_priv->hw_mutex);
1793         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1794         mutex_unlock(&dev_priv->hw_mutex);
1795
1796         return ((vmw_connector_to_du(connector)->unit < num_displays &&
1797                  du->pref_active) ?
1798                 connector_status_connected : connector_status_disconnected);
1799 }
1800
1801 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1802         /* 640x480@60Hz */
1803         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1804                    752, 800, 0, 480, 489, 492, 525, 0,
1805                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1806         /* 800x600@60Hz */
1807         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1808                    968, 1056, 0, 600, 601, 605, 628, 0,
1809                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1810         /* 1024x768@60Hz */
1811         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1812                    1184, 1344, 0, 768, 771, 777, 806, 0,
1813                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1814         /* 1152x864@75Hz */
1815         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1816                    1344, 1600, 0, 864, 865, 868, 900, 0,
1817                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1818         /* 1280x768@60Hz */
1819         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1820                    1472, 1664, 0, 768, 771, 778, 798, 0,
1821                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1822         /* 1280x800@60Hz */
1823         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1824                    1480, 1680, 0, 800, 803, 809, 831, 0,
1825                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1826         /* 1280x960@60Hz */
1827         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1828                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1829                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1830         /* 1280x1024@60Hz */
1831         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1832                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1833                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1834         /* 1360x768@60Hz */
1835         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1836                    1536, 1792, 0, 768, 771, 777, 795, 0,
1837                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1838         /* 1440x1050@60Hz */
1839         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1840                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1841                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1842         /* 1440x900@60Hz */
1843         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1844                    1672, 1904, 0, 900, 903, 909, 934, 0,
1845                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1846         /* 1600x1200@60Hz */
1847         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1848                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1849                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1850         /* 1680x1050@60Hz */
1851         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1852                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1853                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1854         /* 1792x1344@60Hz */
1855         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1856                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1857                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1858         /* 1853x1392@60Hz */
1859         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1860                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1861                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1862         /* 1920x1200@60Hz */
1863         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1864                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1865                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1866         /* 1920x1440@60Hz */
1867         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1868                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1869                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1870         /* 2560x1600@60Hz */
1871         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1872                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1873                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1874         /* Terminate */
1875         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1876 };
1877
1878 /**
1879  * vmw_guess_mode_timing - Provide fake timings for a
1880  * 60Hz vrefresh mode.
1881  *
1882  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1883  * members filled in.
1884  */
1885 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1886 {
1887         mode->hsync_start = mode->hdisplay + 50;
1888         mode->hsync_end = mode->hsync_start + 50;
1889         mode->htotal = mode->hsync_end + 50;
1890
1891         mode->vsync_start = mode->vdisplay + 50;
1892         mode->vsync_end = mode->vsync_start + 50;
1893         mode->vtotal = mode->vsync_end + 50;
1894
1895         mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1896         mode->vrefresh = drm_mode_vrefresh(mode);
1897 }
1898
1899
1900 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1901                                 uint32_t max_width, uint32_t max_height)
1902 {
1903         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1904         struct drm_device *dev = connector->dev;
1905         struct vmw_private *dev_priv = vmw_priv(dev);
1906         struct drm_display_mode *mode = NULL;
1907         struct drm_display_mode *bmode;
1908         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1909                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1910                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1911                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1912         };
1913         int i;
1914
1915         /* Add preferred mode */
1916         {
1917                 mode = drm_mode_duplicate(dev, &prefmode);
1918                 if (!mode)
1919                         return 0;
1920                 mode->hdisplay = du->pref_width;
1921                 mode->vdisplay = du->pref_height;
1922                 vmw_guess_mode_timing(mode);
1923
1924                 if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1925                                                mode->vdisplay)) {
1926                         drm_mode_probed_add(connector, mode);
1927                 } else {
1928                         drm_mode_destroy(dev, mode);
1929                         mode = NULL;
1930                 }
1931
1932                 if (du->pref_mode) {
1933                         list_del_init(&du->pref_mode->head);
1934                         drm_mode_destroy(dev, du->pref_mode);
1935                 }
1936
1937                 /* mode might be null here, this is intended */
1938                 du->pref_mode = mode;
1939         }
1940
1941         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1942                 bmode = &vmw_kms_connector_builtin[i];
1943                 if (bmode->hdisplay > max_width ||
1944                     bmode->vdisplay > max_height)
1945                         continue;
1946
1947                 if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1948                                                 bmode->vdisplay))
1949                         continue;
1950
1951                 mode = drm_mode_duplicate(dev, bmode);
1952                 if (!mode)
1953                         return 0;
1954                 mode->vrefresh = drm_mode_vrefresh(mode);
1955
1956                 drm_mode_probed_add(connector, mode);
1957         }
1958
1959         /* Move the prefered mode first, help apps pick the right mode. */
1960         if (du->pref_mode)
1961                 list_move(&du->pref_mode->head, &connector->probed_modes);
1962
1963         drm_mode_connector_list_update(connector);
1964
1965         return 1;
1966 }
1967
1968 int vmw_du_connector_set_property(struct drm_connector *connector,
1969                                   struct drm_property *property,
1970                                   uint64_t val)
1971 {
1972         return 0;
1973 }
1974
1975
1976 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1977                                 struct drm_file *file_priv)
1978 {
1979         struct vmw_private *dev_priv = vmw_priv(dev);
1980         struct drm_vmw_update_layout_arg *arg =
1981                 (struct drm_vmw_update_layout_arg *)data;
1982         struct vmw_master *vmaster = vmw_master(file_priv->master);
1983         void __user *user_rects;
1984         struct drm_vmw_rect *rects;
1985         unsigned rects_size;
1986         int ret;
1987         int i;
1988         struct drm_mode_config *mode_config = &dev->mode_config;
1989
1990         ret = ttm_read_lock(&vmaster->lock, true);
1991         if (unlikely(ret != 0))
1992                 return ret;
1993
1994         if (!arg->num_outputs) {
1995                 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1996                 vmw_du_update_layout(dev_priv, 1, &def_rect);
1997                 goto out_unlock;
1998         }
1999
2000         rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2001         rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2002                         GFP_KERNEL);
2003         if (unlikely(!rects)) {
2004                 ret = -ENOMEM;
2005                 goto out_unlock;
2006         }
2007
2008         user_rects = (void __user *)(unsigned long)arg->rects;
2009         ret = copy_from_user(rects, user_rects, rects_size);
2010         if (unlikely(ret != 0)) {
2011                 DRM_ERROR("Failed to get rects.\n");
2012                 ret = -EFAULT;
2013                 goto out_free;
2014         }
2015
2016         for (i = 0; i < arg->num_outputs; ++i) {
2017                 if (rects[i].x < 0 ||
2018                     rects[i].y < 0 ||
2019                     rects[i].x + rects[i].w > mode_config->max_width ||
2020                     rects[i].y + rects[i].h > mode_config->max_height) {
2021                         DRM_ERROR("Invalid GUI layout.\n");
2022                         ret = -EINVAL;
2023                         goto out_free;
2024                 }
2025         }
2026
2027         vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2028
2029 out_free:
2030         kfree(rects);
2031 out_unlock:
2032         ttm_read_unlock(&vmaster->lock);
2033         return ret;
2034 }