Pileus Git - ~andy/linux/blob - 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         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
 487         cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 488
 489         cmd->body.srcRect.left = left;
 490         cmd->body.srcRect.right = right;
 491         cmd->body.srcRect.top = top;
 492         cmd->body.srcRect.bottom = bottom;
 493
 494         clips_ptr = clips;
 495         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
 496                 tmp[i].x1 = clips_ptr->x1 - left;
 497                 tmp[i].x2 = clips_ptr->x2 - left;
 498                 tmp[i].y1 = clips_ptr->y1 - top;
 499                 tmp[i].y2 = clips_ptr->y2 - top;
 500         }
 501
 502         /* do per unit writing, reuse fifo for each */
 503         for (i = 0; i < num_units; i++) {
 504                 struct vmw_display_unit *unit = units[i];
 505                 struct vmw_clip_rect clip;
 506                 int num;
 507
 508                 clip.x1 = left - unit->crtc.x;
 509                 clip.y1 = top - unit->crtc.y;
 510                 clip.x2 = right - unit->crtc.x;
 511                 clip.y2 = bottom - unit->crtc.y;
 512
 513                 /* skip any crtcs that misses the clip region */
 514                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
 515                     clip.y1 >= unit->crtc.mode.vdisplay ||
 516                     clip.x2 <= 0 || clip.y2 <= 0)
 517                         continue;
 518
 519                 /*
 520                  * In order for the clip rects to be correctly scaled
 521                  * the src and dest rects needs to be the same size.
 522                  */
 523                 cmd->body.destRect.left = clip.x1;
 524                 cmd->body.destRect.right = clip.x2;
 525                 cmd->body.destRect.top = clip.y1;
 526                 cmd->body.destRect.bottom = clip.y2;
 527
 528                 /* create a clip rect of the crtc in dest coords */
 529                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
 530                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
 531                 clip.x1 = 0 - clip.x1;
 532                 clip.y1 = 0 - clip.y1;
 533
 534                 /* need to reset sid as it is changed by execbuf */
 535                 cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
 536                 cmd->body.destScreenId = unit->unit;
 537
 538                 /* clip and write blits to cmd stream */
 539                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
 540
 541                 /* if no cliprects hit skip this */
 542                 if (num == 0)
 543                         continue;
 544
 545                 /* only return the last fence */
 546                 if (out_fence && *out_fence)
 547                         vmw_fence_obj_unreference(out_fence);
 548
 549                 /* recalculate package length */
 550                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
 551                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 552                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 553                                           fifo_size, 0, NULL, out_fence);
 554
 555                 if (unlikely(ret != 0))
 556                         break;
 557         }
 558
 559
 560         kfree(cmd);
 561 out_free_tmp:
 562         kfree(tmp);
 563
 564         return ret;
 565 }
 566
 567 int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
 568                                   struct drm_file *file_priv,
 569                                   unsigned flags, unsigned color,
 570                                   struct drm_clip_rect *clips,
 571                                   unsigned num_clips)
 572 {
 573         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 574         struct vmw_master *vmaster = vmw_master(file_priv->master);
 575         struct vmw_framebuffer_surface *vfbs =
 576                 vmw_framebuffer_to_vfbs(framebuffer);
 577         struct drm_clip_rect norect;
 578         int ret, inc = 1;
 579
 580         if (unlikely(vfbs->master != file_priv->master))
 581                 return -EINVAL;
 582
 583         /* Require ScreenObject support for 3D */
 584         if (!dev_priv->sou_priv)
 585                 return -EINVAL;
 586
 587         ret = ttm_read_lock(&vmaster->lock, true);
 588         if (unlikely(ret != 0))
 589                 return ret;
 590
 591         if (!num_clips) {
 592                 num_clips = 1;
 593                 clips = &norect;
 594                 norect.x1 = norect.y1 = 0;
 595                 norect.x2 = framebuffer->width;
 596                 norect.y2 = framebuffer->height;
 597         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 598                 num_clips /= 2;
 599                 inc = 2; /* skip source rects */
 600         }
 601
 602         ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
 603                                    flags, color,
 604                                    clips, num_clips, inc, NULL);
 605
 606         ttm_read_unlock(&vmaster->lock);
 607         return 0;
 608 }
 609
 610 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
 611         .destroy = vmw_framebuffer_surface_destroy,
 612         .dirty = vmw_framebuffer_surface_dirty,
 613         .create_handle = vmw_framebuffer_create_handle,
 614 };
 615
 616 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
 617                                            struct drm_file *file_priv,
 618                                            struct vmw_surface *surface,
 619                                            struct vmw_framebuffer **out,
 620                                            const struct drm_mode_fb_cmd
 621                                            *mode_cmd)
 622
 623 {
 624         struct drm_device *dev = dev_priv->dev;
 625         struct vmw_framebuffer_surface *vfbs;
 626         enum SVGA3dSurfaceFormat format;
 627         struct vmw_master *vmaster = vmw_master(file_priv->master);
 628         int ret;
 629
 630         /* 3D is only supported on HWv8 hosts which supports screen objects */
 631         if (!dev_priv->sou_priv)
 632                 return -ENOSYS;
 633
 634         /*
 635          * Sanity checks.
 636          */
 637
 638         /* Surface must be marked as a scanout. */
 639         if (unlikely(!surface->scanout))
 640                 return -EINVAL;
 641
 642         if (unlikely(surface->mip_levels[0] != 1 ||
 643                      surface->num_sizes != 1 ||
 644                      surface->sizes[0].width < mode_cmd->width ||
 645                      surface->sizes[0].height < mode_cmd->height ||
 646                      surface->sizes[0].depth != 1)) {
 647                 DRM_ERROR("Incompatible surface dimensions "
 648                           "for requested mode.\n");
 649                 return -EINVAL;
 650         }
 651
 652         switch (mode_cmd->depth) {
 653         case 32:
 654                 format = SVGA3D_A8R8G8B8;
 655                 break;
 656         case 24:
 657                 format = SVGA3D_X8R8G8B8;
 658                 break;
 659         case 16:
 660                 format = SVGA3D_R5G6B5;
 661                 break;
 662         case 15:
 663                 format = SVGA3D_A1R5G5B5;
 664                 break;
 665         case 8:
 666                 format = SVGA3D_LUMINANCE8;
 667                 break;
 668         default:
 669                 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 670                 return -EINVAL;
 671         }
 672
 673         if (unlikely(format != surface->format)) {
 674                 DRM_ERROR("Invalid surface format for requested mode.\n");
 675                 return -EINVAL;
 676         }
 677
 678         vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
 679         if (!vfbs) {
 680                 ret = -ENOMEM;
 681                 goto out_err1;
 682         }
 683
 684         ret = drm_framebuffer_init(dev, &vfbs->base.base,
 685                                    &vmw_framebuffer_surface_funcs);
 686         if (ret)
 687                 goto out_err2;
 688
 689         if (!vmw_surface_reference(surface)) {
 690                 DRM_ERROR("failed to reference surface %p\n", surface);
 691                 goto out_err3;
 692         }
 693
 694         /* XXX get the first 3 from the surface info */
 695         vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
 696         vfbs->base.base.pitches[0] = mode_cmd->pitch;
 697         vfbs->base.base.depth = mode_cmd->depth;
 698         vfbs->base.base.width = mode_cmd->width;
 699         vfbs->base.base.height = mode_cmd->height;
 700         vfbs->surface = surface;
 701         vfbs->base.user_handle = mode_cmd->handle;
 702         vfbs->master = drm_master_get(file_priv->master);
 703
 704         mutex_lock(&vmaster->fb_surf_mutex);
 705         list_add_tail(&vfbs->head, &vmaster->fb_surf);
 706         mutex_unlock(&vmaster->fb_surf_mutex);
 707
 708         *out = &vfbs->base;
 709
 710         return 0;
 711
 712 out_err3:
 713         drm_framebuffer_cleanup(&vfbs->base.base);
 714 out_err2:
 715         kfree(vfbs);
 716 out_err1:
 717         return ret;
 718 }
 719
 720 /*
 721  * Dmabuf framebuffer code
 722  */
 723
 724 #define vmw_framebuffer_to_vfbd(x) \
 725         container_of(x, struct vmw_framebuffer_dmabuf, base.base)
 726
 727 struct vmw_framebuffer_dmabuf {
 728         struct vmw_framebuffer base;
 729         struct vmw_dma_buffer *buffer;
 730 };
 731
 732 void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
 733 {
 734         struct vmw_framebuffer_dmabuf *vfbd =
 735                 vmw_framebuffer_to_vfbd(framebuffer);
 736
 737         drm_framebuffer_cleanup(framebuffer);
 738         vmw_dmabuf_unreference(&vfbd->buffer);
 739         ttm_base_object_unref(&vfbd->base.user_obj);
 740
 741         kfree(vfbd);
 742 }
 743
 744 static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
 745                                struct vmw_framebuffer *framebuffer,
 746                                unsigned flags, unsigned color,
 747                                struct drm_clip_rect *clips,
 748                                unsigned num_clips, int increment)
 749 {
 750         size_t fifo_size;
 751         int i;
 752
 753         struct {
 754                 uint32_t header;
 755                 SVGAFifoCmdUpdate body;
 756         } *cmd;
 757
 758         fifo_size = sizeof(*cmd) * num_clips;
 759         cmd = vmw_fifo_reserve(dev_priv, fifo_size);
 760         if (unlikely(cmd == NULL)) {
 761                 DRM_ERROR("Fifo reserve failed.\n");
 762                 return -ENOMEM;
 763         }
 764
 765         memset(cmd, 0, fifo_size);
 766         for (i = 0; i < num_clips; i++, clips += increment) {
 767                 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
 768                 cmd[i].body.x = cpu_to_le32(clips->x1);
 769                 cmd[i].body.y = cpu_to_le32(clips->y1);
 770                 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
 771                 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
 772         }
 773
 774         vmw_fifo_commit(dev_priv, fifo_size);
 775         return 0;
 776 }
 777
 778 static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
 779                                   struct vmw_private *dev_priv,
 780                                   struct vmw_framebuffer *framebuffer)
 781 {
 782         int depth = framebuffer->base.depth;
 783         size_t fifo_size;
 784         int ret;
 785
 786         struct {
 787                 uint32_t header;
 788                 SVGAFifoCmdDefineGMRFB body;
 789         } *cmd;
 790
 791         /* Emulate RGBA support, contrary to svga_reg.h this is not
 792          * supported by hosts. This is only a problem if we are reading
 793          * this value later and expecting what we uploaded back.
 794          */
 795         if (depth == 32)
 796                 depth = 24;
 797
 798         fifo_size = sizeof(*cmd);
 799         cmd = kmalloc(fifo_size, GFP_KERNEL);
 800         if (unlikely(cmd == NULL)) {
 801                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 802                 return -ENOMEM;
 803         }
 804
 805         memset(cmd, 0, fifo_size);
 806         cmd->header = SVGA_CMD_DEFINE_GMRFB;
 807         cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
 808         cmd->body.format.colorDepth = depth;
 809         cmd->body.format.reserved = 0;
 810         cmd->body.bytesPerLine = framebuffer->base.pitches[0];
 811         cmd->body.ptr.gmrId = framebuffer->user_handle;
 812         cmd->body.ptr.offset = 0;
 813
 814         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 815                                   fifo_size, 0, NULL, NULL);
 816
 817         kfree(cmd);
 818
 819         return ret;
 820 }
 821
 822 static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
 823                                struct vmw_private *dev_priv,
 824                                struct vmw_framebuffer *framebuffer,
 825                                unsigned flags, unsigned color,
 826                                struct drm_clip_rect *clips,
 827                                unsigned num_clips, int increment,
 828                                struct vmw_fence_obj **out_fence)
 829 {
 830         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 831         struct drm_clip_rect *clips_ptr;
 832         int i, k, num_units, ret;
 833         struct drm_crtc *crtc;
 834         size_t fifo_size;
 835
 836         struct {
 837                 uint32_t header;
 838                 SVGAFifoCmdBlitGMRFBToScreen body;
 839         } *blits;
 840
 841         ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
 842         if (unlikely(ret != 0))
 843                 return ret; /* define_gmrfb prints warnings */
 844
 845         fifo_size = sizeof(*blits) * num_clips;
 846         blits = kmalloc(fifo_size, GFP_KERNEL);
 847         if (unlikely(blits == NULL)) {
 848                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 849                 return -ENOMEM;
 850         }
 851
 852         num_units = 0;
 853         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
 854                 if (crtc->fb != &framebuffer->base)
 855                         continue;
 856                 units[num_units++] = vmw_crtc_to_du(crtc);
 857         }
 858
 859         for (k = 0; k < num_units; k++) {
 860                 struct vmw_display_unit *unit = units[k];
 861                 int hit_num = 0;
 862
 863                 clips_ptr = clips;
 864                 for (i = 0; i < num_clips; i++, clips_ptr += increment) {
 865                         int clip_x1 = clips_ptr->x1 - unit->crtc.x;
 866                         int clip_y1 = clips_ptr->y1 - unit->crtc.y;
 867                         int clip_x2 = clips_ptr->x2 - unit->crtc.x;
 868                         int clip_y2 = clips_ptr->y2 - unit->crtc.y;
 869                         int move_x, move_y;
 870
 871                         /* skip any crtcs that misses the clip region */
 872                         if (clip_x1 >= unit->crtc.mode.hdisplay ||
 873                             clip_y1 >= unit->crtc.mode.vdisplay ||
 874                             clip_x2 <= 0 || clip_y2 <= 0)
 875                                 continue;
 876
 877                         /* clip size to crtc size */
 878                         clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
 879                         clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
 880
 881                         /* translate both src and dest to bring clip into screen */
 882                         move_x = min_t(int, clip_x1, 0);
 883                         move_y = min_t(int, clip_y1, 0);
 884
 885                         /* actual translate done here */
 886                         blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
 887                         blits[hit_num].body.destScreenId = unit->unit;
 888                         blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
 889                         blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
 890                         blits[hit_num].body.destRect.left = clip_x1 - move_x;
 891                         blits[hit_num].body.destRect.top = clip_y1 - move_y;
 892                         blits[hit_num].body.destRect.right = clip_x2;
 893                         blits[hit_num].body.destRect.bottom = clip_y2;
 894                         hit_num++;
 895                 }
 896
 897                 /* no clips hit the crtc */
 898                 if (hit_num == 0)
 899                         continue;
 900
 901                 /* only return the last fence */
 902                 if (out_fence && *out_fence)
 903                         vmw_fence_obj_unreference(out_fence);
 904
 905                 fifo_size = sizeof(*blits) * hit_num;
 906                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
 907                                           fifo_size, 0, NULL, out_fence);
 908
 909                 if (unlikely(ret != 0))
 910                         break;
 911         }
 912
 913         kfree(blits);
 914
 915         return ret;
 916 }
 917
 918 int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
 919                                  struct drm_file *file_priv,
 920                                  unsigned flags, unsigned color,
 921                                  struct drm_clip_rect *clips,
 922                                  unsigned num_clips)
 923 {
 924         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 925         struct vmw_master *vmaster = vmw_master(file_priv->master);
 926         struct vmw_framebuffer_dmabuf *vfbd =
 927                 vmw_framebuffer_to_vfbd(framebuffer);
 928         struct drm_clip_rect norect;
 929         int ret, increment = 1;
 930
 931         ret = ttm_read_lock(&vmaster->lock, true);
 932         if (unlikely(ret != 0))
 933                 return ret;
 934
 935         if (!num_clips) {
 936                 num_clips = 1;
 937                 clips = &norect;
 938                 norect.x1 = norect.y1 = 0;
 939                 norect.x2 = framebuffer->width;
 940                 norect.y2 = framebuffer->height;
 941         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 942                 num_clips /= 2;
 943                 increment = 2;
 944         }
 945
 946         if (dev_priv->ldu_priv) {
 947                 ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
 948                                           flags, color,
 949                                           clips, num_clips, increment);
 950         } else {
 951                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
 952                                           flags, color,
 953                                           clips, num_clips, increment, NULL);
 954         }
 955
 956         ttm_read_unlock(&vmaster->lock);
 957         return ret;
 958 }
 959
 960 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
 961         .destroy = vmw_framebuffer_dmabuf_destroy,
 962         .dirty = vmw_framebuffer_dmabuf_dirty,
 963         .create_handle = vmw_framebuffer_create_handle,
 964 };
 965
 966 /**
 967  * Pin the dmabuffer to the start of vram.
 968  */
 969 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
 970 {
 971         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 972         struct vmw_framebuffer_dmabuf *vfbd =
 973                 vmw_framebuffer_to_vfbd(&vfb->base);
 974         int ret;
 975
 976         /* This code should not be used with screen objects */
 977         BUG_ON(dev_priv->sou_priv);
 978
 979         vmw_overlay_pause_all(dev_priv);
 980
 981         ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
 982
 983         vmw_overlay_resume_all(dev_priv);
 984
 985         WARN_ON(ret != 0);
 986
 987         return 0;
 988 }
 989
 990 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
 991 {
 992         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 993         struct vmw_framebuffer_dmabuf *vfbd =
 994                 vmw_framebuffer_to_vfbd(&vfb->base);
 995
 996         if (!vfbd->buffer) {
 997                 WARN_ON(!vfbd->buffer);
 998                 return 0;
 999         }
1000
1001         return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
1002 }
1003
1004 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
1005                                           struct vmw_dma_buffer *dmabuf,
1006                                           struct vmw_framebuffer **out,
1007                                           const struct drm_mode_fb_cmd
1008                                           *mode_cmd)
1009
1010 {
1011         struct drm_device *dev = dev_priv->dev;
1012         struct vmw_framebuffer_dmabuf *vfbd;
1013         unsigned int requested_size;
1014         int ret;
1015
1016         requested_size = mode_cmd->height * mode_cmd->pitch;
1017         if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1018                 DRM_ERROR("Screen buffer object size is too small "
1019                           "for requested mode.\n");
1020                 return -EINVAL;
1021         }
1022
1023         /* Limited framebuffer color depth support for screen objects */
1024         if (dev_priv->sou_priv) {
1025                 switch (mode_cmd->depth) {
1026                 case 32:
1027                 case 24:
1028                         /* Only support 32 bpp for 32 and 24 depth fbs */
1029                         if (mode_cmd->bpp == 32)
1030                                 break;
1031
1032                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1033                                   mode_cmd->depth, mode_cmd->bpp);
1034                         return -EINVAL;
1035                 case 16:
1036                 case 15:
1037                         /* Only support 16 bpp for 16 and 15 depth fbs */
1038                         if (mode_cmd->bpp == 16)
1039                                 break;
1040
1041                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1042                                   mode_cmd->depth, mode_cmd->bpp);
1043                         return -EINVAL;
1044                 default:
1045                         DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
1046                         return -EINVAL;
1047                 }
1048         }
1049
1050         vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1051         if (!vfbd) {
1052                 ret = -ENOMEM;
1053                 goto out_err1;
1054         }
1055
1056         ret = drm_framebuffer_init(dev, &vfbd->base.base,
1057                                    &vmw_framebuffer_dmabuf_funcs);
1058         if (ret)
1059                 goto out_err2;
1060
1061         if (!vmw_dmabuf_reference(dmabuf)) {
1062                 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
1063                 goto out_err3;
1064         }
1065
1066         vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
1067         vfbd->base.base.pitches[0] = mode_cmd->pitch;
1068         vfbd->base.base.depth = mode_cmd->depth;
1069         vfbd->base.base.width = mode_cmd->width;
1070         vfbd->base.base.height = mode_cmd->height;
1071         if (!dev_priv->sou_priv) {
1072                 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
1073                 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
1074         }
1075         vfbd->base.dmabuf = true;
1076         vfbd->buffer = dmabuf;
1077         vfbd->base.user_handle = mode_cmd->handle;
1078         *out = &vfbd->base;
1079
1080         return 0;
1081
1082 out_err3:
1083         drm_framebuffer_cleanup(&vfbd->base.base);
1084 out_err2:
1085         kfree(vfbd);
1086 out_err1:
1087         return ret;
1088 }
1089
1090 /*
1091  * Generic Kernel modesetting functions
1092  */
1093
1094 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1095                                                  struct drm_file *file_priv,
1096                                                  struct drm_mode_fb_cmd2 *mode_cmd2)
1097 {
1098         struct vmw_private *dev_priv = vmw_priv(dev);
1099         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1100         struct vmw_framebuffer *vfb = NULL;
1101         struct vmw_surface *surface = NULL;
1102         struct vmw_dma_buffer *bo = NULL;
1103         struct ttm_base_object *user_obj;
1104         struct drm_mode_fb_cmd mode_cmd;
1105         int ret;
1106
1107         mode_cmd.width = mode_cmd2->width;
1108         mode_cmd.height = mode_cmd2->height;
1109         mode_cmd.pitch = mode_cmd2->pitches[0];
1110         mode_cmd.handle = mode_cmd2->handles[0];
1111         drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
1112                                     &mode_cmd.bpp);
1113
1114         /**
1115          * This code should be conditioned on Screen Objects not being used.
1116          * If screen objects are used, we can allocate a GMR to hold the
1117          * requested framebuffer.
1118          */
1119
1120         if (!vmw_kms_validate_mode_vram(dev_priv,
1121                                         mode_cmd.pitch,
1122                                         mode_cmd.height)) {
1123                 DRM_ERROR("VRAM size is too small for requested mode.\n");
1124                 return ERR_PTR(-ENOMEM);
1125         }
1126
1127         /*
1128          * Take a reference on the user object of the resource
1129          * backing the kms fb. This ensures that user-space handle
1130          * lookups on that resource will always work as long as
1131          * it's registered with a kms framebuffer. This is important,
1132          * since vmw_execbuf_process identifies resources in the
1133          * command stream using user-space handles.
1134          */
1135
1136         user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
1137         if (unlikely(user_obj == NULL)) {
1138                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1139                 return ERR_PTR(-ENOENT);
1140         }
1141
1142         /**
1143          * End conditioned code.
1144          */
1145
1146         /* returns either a dmabuf or surface */
1147         ret = vmw_user_lookup_handle(dev_priv, tfile,
1148                                      mode_cmd.handle,
1149                                      &surface, &bo);
1150         if (ret)
1151                 goto err_out;
1152
1153         /* Create the new framebuffer depending one what we got back */
1154         if (bo)
1155                 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1156                                                      &mode_cmd);
1157         else if (surface)
1158                 ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
1159                                                       surface, &vfb, &mode_cmd);
1160         else
1161                 BUG();
1162
1163 err_out:
1164         /* vmw_user_lookup_handle takes one ref so does new_fb */
1165         if (bo)
1166                 vmw_dmabuf_unreference(&bo);
1167         if (surface)
1168                 vmw_surface_unreference(&surface);
1169
1170         if (ret) {
1171                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1172                 ttm_base_object_unref(&user_obj);
1173                 return ERR_PTR(ret);
1174         } else
1175                 vfb->user_obj = user_obj;
1176
1177         return &vfb->base;
1178 }
1179
1180 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1181         .fb_create = vmw_kms_fb_create,
1182 };
1183
1184 int vmw_kms_present(struct vmw_private *dev_priv,
1185                     struct drm_file *file_priv,
1186                     struct vmw_framebuffer *vfb,
1187                     struct vmw_surface *surface,
1188                     uint32_t sid,
1189                     int32_t destX, int32_t destY,
1190                     struct drm_vmw_rect *clips,
1191                     uint32_t num_clips)
1192 {
1193         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1194         struct drm_clip_rect *tmp;
1195         struct drm_crtc *crtc;
1196         size_t fifo_size;
1197         int i, k, num_units;
1198         int ret = 0; /* silence warning */
1199         int left, right, top, bottom;
1200
1201         struct {
1202                 SVGA3dCmdHeader header;
1203                 SVGA3dCmdBlitSurfaceToScreen body;
1204         } *cmd;
1205         SVGASignedRect *blits;
1206
1207         num_units = 0;
1208         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1209                 if (crtc->fb != &vfb->base)
1210                         continue;
1211                 units[num_units++] = vmw_crtc_to_du(crtc);
1212         }
1213
1214         BUG_ON(surface == NULL);
1215         BUG_ON(!clips || !num_clips);
1216
1217         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1218         if (unlikely(tmp == NULL)) {
1219                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1220                 return -ENOMEM;
1221         }
1222
1223         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1224         cmd = kmalloc(fifo_size, GFP_KERNEL);
1225         if (unlikely(cmd == NULL)) {
1226                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1227                 ret = -ENOMEM;
1228                 goto out_free_tmp;
1229         }
1230
1231         left = clips->x;
1232         right = clips->x + clips->w;
1233         top = clips->y;
1234         bottom = clips->y + clips->h;
1235
1236         for (i = 1; i < num_clips; i++) {
1237                 left = min_t(int, left, (int)clips[i].x);
1238                 right = max_t(int, right, (int)clips[i].x + clips[i].w);
1239                 top = min_t(int, top, (int)clips[i].y);
1240                 bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1241         }
1242
1243         /* only need to do this once */
1244         memset(cmd, 0, fifo_size);
1245         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1246
1247         blits = (SVGASignedRect *)&cmd[1];
1248
1249         cmd->body.srcRect.left = left;
1250         cmd->body.srcRect.right = right;
1251         cmd->body.srcRect.top = top;
1252         cmd->body.srcRect.bottom = bottom;
1253
1254         for (i = 0; i < num_clips; i++) {
1255                 tmp[i].x1 = clips[i].x - left;
1256                 tmp[i].x2 = clips[i].x + clips[i].w - left;
1257                 tmp[i].y1 = clips[i].y - top;
1258                 tmp[i].y2 = clips[i].y + clips[i].h - top;
1259         }
1260
1261         for (k = 0; k < num_units; k++) {
1262                 struct vmw_display_unit *unit = units[k];
1263                 struct vmw_clip_rect clip;
1264                 int num;
1265
1266                 clip.x1 = left + destX - unit->crtc.x;
1267                 clip.y1 = top + destY - unit->crtc.y;
1268                 clip.x2 = right + destX - unit->crtc.x;
1269                 clip.y2 = bottom + destY - unit->crtc.y;
1270
1271                 /* skip any crtcs that misses the clip region */
1272                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
1273                     clip.y1 >= unit->crtc.mode.vdisplay ||
1274                     clip.x2 <= 0 || clip.y2 <= 0)
1275                         continue;
1276
1277                 /*
1278                  * In order for the clip rects to be correctly scaled
1279                  * the src and dest rects needs to be the same size.
1280                  */
1281                 cmd->body.destRect.left = clip.x1;
1282                 cmd->body.destRect.right = clip.x2;
1283                 cmd->body.destRect.top = clip.y1;
1284                 cmd->body.destRect.bottom = clip.y2;
1285
1286                 /* create a clip rect of the crtc in dest coords */
1287                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1288                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1289                 clip.x1 = 0 - clip.x1;
1290                 clip.y1 = 0 - clip.y1;
1291
1292                 /* need to reset sid as it is changed by execbuf */
1293                 cmd->body.srcImage.sid = sid;
1294                 cmd->body.destScreenId = unit->unit;
1295
1296                 /* clip and write blits to cmd stream */
1297                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1298
1299                 /* if no cliprects hit skip this */
1300                 if (num == 0)
1301                         continue;
1302
1303                 /* recalculate package length */
1304                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1305                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1306                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1307                                           fifo_size, 0, NULL, NULL);
1308
1309                 if (unlikely(ret != 0))
1310                         break;
1311         }
1312
1313         kfree(cmd);
1314 out_free_tmp:
1315         kfree(tmp);
1316
1317         return ret;
1318 }
1319
1320 int vmw_kms_readback(struct vmw_private *dev_priv,
1321                      struct drm_file *file_priv,
1322                      struct vmw_framebuffer *vfb,
1323                      struct drm_vmw_fence_rep __user *user_fence_rep,
1324                      struct drm_vmw_rect *clips,
1325                      uint32_t num_clips)
1326 {
1327         struct vmw_framebuffer_dmabuf *vfbd =
1328                 vmw_framebuffer_to_vfbd(&vfb->base);
1329         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1330         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1331         struct drm_crtc *crtc;
1332         size_t fifo_size;
1333         int i, k, ret, num_units, blits_pos;
1334
1335         struct {
1336                 uint32_t header;
1337                 SVGAFifoCmdDefineGMRFB body;
1338         } *cmd;
1339         struct {
1340                 uint32_t header;
1341                 SVGAFifoCmdBlitScreenToGMRFB body;
1342         } *blits;
1343
1344         num_units = 0;
1345         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1346                 if (crtc->fb != &vfb->base)
1347                         continue;
1348                 units[num_units++] = vmw_crtc_to_du(crtc);
1349         }
1350
1351         BUG_ON(dmabuf == NULL);
1352         BUG_ON(!clips || !num_clips);
1353
1354         /* take a safe guess at fifo size */
1355         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1356         cmd = kmalloc(fifo_size, GFP_KERNEL);
1357         if (unlikely(cmd == NULL)) {
1358                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1359                 return -ENOMEM;
1360         }
1361
1362         memset(cmd, 0, fifo_size);
1363         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1364         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1365         cmd->body.format.colorDepth = vfb->base.depth;
1366         cmd->body.format.reserved = 0;
1367         cmd->body.bytesPerLine = vfb->base.pitches[0];
1368         cmd->body.ptr.gmrId = vfb->user_handle;
1369         cmd->body.ptr.offset = 0;
1370
1371         blits = (void *)&cmd[1];
1372         blits_pos = 0;
1373         for (i = 0; i < num_units; i++) {
1374                 struct drm_vmw_rect *c = clips;
1375                 for (k = 0; k < num_clips; k++, c++) {
1376                         /* transform clip coords to crtc origin based coords */
1377                         int clip_x1 = c->x - units[i]->crtc.x;
1378                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1379                         int clip_y1 = c->y - units[i]->crtc.y;
1380                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1381                         int dest_x = c->x;
1382                         int dest_y = c->y;
1383
1384                         /* compensate for clipping, we negate
1385                          * a negative number and add that.
1386                          */
1387                         if (clip_x1 < 0)
1388                                 dest_x += -clip_x1;
1389                         if (clip_y1 < 0)
1390                                 dest_y += -clip_y1;
1391
1392                         /* clip */
1393                         clip_x1 = max(clip_x1, 0);
1394                         clip_y1 = max(clip_y1, 0);
1395                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1396                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1397
1398                         /* and cull any rects that misses the crtc */
1399                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1400                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1401                             clip_x2 <= 0 || clip_y2 <= 0)
1402                                 continue;
1403
1404                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1405                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1406                         blits[blits_pos].body.destOrigin.x = dest_x;
1407                         blits[blits_pos].body.destOrigin.y = dest_y;
1408
1409                         blits[blits_pos].body.srcRect.left = clip_x1;
1410                         blits[blits_pos].body.srcRect.top = clip_y1;
1411                         blits[blits_pos].body.srcRect.right = clip_x2;
1412                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1413                         blits_pos++;
1414                 }
1415         }
1416         /* reset size here and use calculated exact size from loops */
1417         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1418
1419         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1420                                   0, user_fence_rep, NULL);
1421
1422         kfree(cmd);
1423
1424         return ret;
1425 }
1426
1427 int vmw_kms_init(struct vmw_private *dev_priv)
1428 {
1429         struct drm_device *dev = dev_priv->dev;
1430         int ret;
1431
1432         drm_mode_config_init(dev);
1433         dev->mode_config.funcs = &vmw_kms_funcs;
1434         dev->mode_config.min_width = 1;
1435         dev->mode_config.min_height = 1;
1436         /* assumed largest fb size */
1437         dev->mode_config.max_width = 8192;
1438         dev->mode_config.max_height = 8192;
1439
1440         ret = vmw_kms_init_screen_object_display(dev_priv);
1441         if (ret) /* Fallback */
1442                 (void)vmw_kms_init_legacy_display_system(dev_priv);
1443
1444         return 0;
1445 }
1446
1447 int vmw_kms_close(struct vmw_private *dev_priv)
1448 {
1449         /*
1450          * Docs says we should take the lock before calling this function
1451          * but since it destroys encoders and our destructor calls
1452          * drm_encoder_cleanup which takes the lock we deadlock.
1453          */
1454         drm_mode_config_cleanup(dev_priv->dev);
1455         if (dev_priv->sou_priv)
1456                 vmw_kms_close_screen_object_display(dev_priv);
1457         else
1458                 vmw_kms_close_legacy_display_system(dev_priv);
1459         return 0;
1460 }
1461
1462 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1463                                 struct drm_file *file_priv)
1464 {
1465         struct drm_vmw_cursor_bypass_arg *arg = data;
1466         struct vmw_display_unit *du;
1467         struct drm_mode_object *obj;
1468         struct drm_crtc *crtc;
1469         int ret = 0;
1470
1471
1472         mutex_lock(&dev->mode_config.mutex);
1473         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1474
1475                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1476                         du = vmw_crtc_to_du(crtc);
1477                         du->hotspot_x = arg->xhot;
1478                         du->hotspot_y = arg->yhot;
1479                 }
1480
1481                 mutex_unlock(&dev->mode_config.mutex);
1482                 return 0;
1483         }
1484
1485         obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
1486         if (!obj) {
1487                 ret = -EINVAL;
1488                 goto out;
1489         }
1490
1491         crtc = obj_to_crtc(obj);
1492         du = vmw_crtc_to_du(crtc);
1493
1494         du->hotspot_x = arg->xhot;
1495         du->hotspot_y = arg->yhot;
1496
1497 out:
1498         mutex_unlock(&dev->mode_config.mutex);
1499
1500         return ret;
1501 }
1502
1503 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1504                         unsigned width, unsigned height, unsigned pitch,
1505                         unsigned bpp, unsigned depth)
1506 {
1507         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1508                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1509         else if (vmw_fifo_have_pitchlock(vmw_priv))
1510                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1511         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1512         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1513         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1514
1515         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1516                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1517                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1518                 return -EINVAL;
1519         }
1520
1521         return 0;
1522 }
1523
1524 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1525 {
1526         struct vmw_vga_topology_state *save;
1527         uint32_t i;
1528
1529         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1530         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1531         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1532         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1533                 vmw_priv->vga_pitchlock =
1534                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1535         else if (vmw_fifo_have_pitchlock(vmw_priv))
1536                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1537                                                        SVGA_FIFO_PITCHLOCK);
1538
1539         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1540                 return 0;
1541
1542         vmw_priv->num_displays = vmw_read(vmw_priv,
1543                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1544
1545         if (vmw_priv->num_displays == 0)
1546                 vmw_priv->num_displays = 1;
1547
1548         for (i = 0; i < vmw_priv->num_displays; ++i) {
1549                 save = &vmw_priv->vga_save[i];
1550                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1551                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1552                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1553                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1554                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1555                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1556                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1557                 if (i == 0 && vmw_priv->num_displays == 1 &&
1558                     save->width == 0 && save->height == 0) {
1559
1560                         /*
1561                          * It should be fairly safe to assume that these
1562                          * values are uninitialized.
1563                          */
1564
1565                         save->width = vmw_priv->vga_width - save->pos_x;
1566                         save->height = vmw_priv->vga_height - save->pos_y;
1567                 }
1568         }
1569
1570         return 0;
1571 }
1572
1573 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1574 {
1575         struct vmw_vga_topology_state *save;
1576         uint32_t i;
1577
1578         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1579         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1580         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1581         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1582                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1583                           vmw_priv->vga_pitchlock);
1584         else if (vmw_fifo_have_pitchlock(vmw_priv))
1585                 iowrite32(vmw_priv->vga_pitchlock,
1586                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1587
1588         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1589                 return 0;
1590
1591         for (i = 0; i < vmw_priv->num_displays; ++i) {
1592                 save = &vmw_priv->vga_save[i];
1593                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1594                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1595                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1596                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1597                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1598                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1599                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1600         }
1601
1602         return 0;
1603 }
1604
1605 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1606                                 uint32_t pitch,
1607                                 uint32_t height)
1608 {
1609         return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1610 }
1611
1612
1613 /**
1614  * Function called by DRM code called with vbl_lock held.
1615  */
1616 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1617 {
1618         return 0;
1619 }
1620
1621 /**
1622  * Function called by DRM code called with vbl_lock held.
1623  */
1624 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1625 {
1626         return -ENOSYS;
1627 }
1628
1629 /**
1630  * Function called by DRM code called with vbl_lock held.
1631  */
1632 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1633 {
1634 }
1635
1636
1637 /*
1638  * Small shared kms functions.
1639  */
1640
1641 int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1642                          struct drm_vmw_rect *rects)
1643 {
1644         struct drm_device *dev = dev_priv->dev;
1645         struct vmw_display_unit *du;
1646         struct drm_connector *con;
1647
1648         mutex_lock(&dev->mode_config.mutex);
1649
1650 #if 0
1651         {
1652                 unsigned int i;
1653
1654                 DRM_INFO("%s: new layout ", __func__);
1655                 for (i = 0; i < num; i++)
1656                         DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1657                                  rects[i].w, rects[i].h);
1658                 DRM_INFO("\n");
1659         }
1660 #endif
1661
1662         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1663                 du = vmw_connector_to_du(con);
1664                 if (num > du->unit) {
1665                         du->pref_width = rects[du->unit].w;
1666                         du->pref_height = rects[du->unit].h;
1667                         du->pref_active = true;
1668                         du->gui_x = rects[du->unit].x;
1669                         du->gui_y = rects[du->unit].y;
1670                 } else {
1671                         du->pref_width = 800;
1672                         du->pref_height = 600;
1673                         du->pref_active = false;
1674                 }
1675                 con->status = vmw_du_connector_detect(con, true);
1676         }
1677
1678         mutex_unlock(&dev->mode_config.mutex);
1679
1680         return 0;
1681 }
1682
1683 int vmw_du_page_flip(struct drm_crtc *crtc,
1684                      struct drm_framebuffer *fb,
1685                      struct drm_pending_vblank_event *event)
1686 {
1687         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1688         struct drm_framebuffer *old_fb = crtc->fb;
1689         struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
1690         struct drm_file *file_priv ;
1691         struct vmw_fence_obj *fence = NULL;
1692         struct drm_clip_rect clips;
1693         int ret;
1694
1695         if (event == NULL)
1696                 return -EINVAL;
1697
1698         /* require ScreenObject support for page flipping */
1699         if (!dev_priv->sou_priv)
1700                 return -ENOSYS;
1701
1702         file_priv = event->base.file_priv;
1703         if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
1704                 return -EINVAL;
1705
1706         crtc->fb = fb;
1707
1708         /* do a full screen dirty update */
1709         clips.x1 = clips.y1 = 0;
1710         clips.x2 = fb->width;
1711         clips.y2 = fb->height;
1712
1713         if (vfb->dmabuf)
1714                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
1715                                           0, 0, &clips, 1, 1, &fence);
1716         else
1717                 ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
1718                                            0, 0, &clips, 1, 1, &fence);
1719
1720
1721         if (ret != 0)
1722                 goto out_no_fence;
1723         if (!fence) {
1724                 ret = -EINVAL;
1725                 goto out_no_fence;
1726         }
1727
1728         ret = vmw_event_fence_action_queue(file_priv, fence,
1729                                            &event->base,
1730                                            &event->event.tv_sec,
1731                                            &event->event.tv_usec,
1732                                            true);
1733
1734         /*
1735          * No need to hold on to this now. The only cleanup
1736          * we need to do if we fail is unref the fence.
1737          */
1738         vmw_fence_obj_unreference(&fence);
1739
1740         if (vmw_crtc_to_du(crtc)->is_implicit)
1741                 vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
1742
1743         return ret;
1744
1745 out_no_fence:
1746         crtc->fb = old_fb;
1747         return ret;
1748 }
1749
1750
1751 void vmw_du_crtc_save(struct drm_crtc *crtc)
1752 {
1753 }
1754
1755 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1756 {
1757 }
1758
1759 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1760                            u16 *r, u16 *g, u16 *b,
1761                            uint32_t start, uint32_t size)
1762 {
1763         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1764         int i;
1765
1766         for (i = 0; i < size; i++) {
1767                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1768                           r[i], g[i], b[i]);
1769                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1770                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1771                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1772         }
1773 }
1774
1775 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1776 {
1777 }
1778
1779 void vmw_du_connector_save(struct drm_connector *connector)
1780 {
1781 }
1782
1783 void vmw_du_connector_restore(struct drm_connector *connector)
1784 {
1785 }
1786
1787 enum drm_connector_status
1788 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1789 {
1790         uint32_t num_displays;
1791         struct drm_device *dev = connector->dev;
1792         struct vmw_private *dev_priv = vmw_priv(dev);
1793         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1794
1795         mutex_lock(&dev_priv->hw_mutex);
1796         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1797         mutex_unlock(&dev_priv->hw_mutex);
1798
1799         return ((vmw_connector_to_du(connector)->unit < num_displays &&
1800                  du->pref_active) ?
1801                 connector_status_connected : connector_status_disconnected);
1802 }
1803
1804 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1805         /* 640x480@60Hz */
1806         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1807                    752, 800, 0, 480, 489, 492, 525, 0,
1808                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1809         /* 800x600@60Hz */
1810         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1811                    968, 1056, 0, 600, 601, 605, 628, 0,
1812                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1813         /* 1024x768@60Hz */
1814         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1815                    1184, 1344, 0, 768, 771, 777, 806, 0,
1816                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1817         /* 1152x864@75Hz */
1818         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1819                    1344, 1600, 0, 864, 865, 868, 900, 0,
1820                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1821         /* 1280x768@60Hz */
1822         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1823                    1472, 1664, 0, 768, 771, 778, 798, 0,
1824                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1825         /* 1280x800@60Hz */
1826         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1827                    1480, 1680, 0, 800, 803, 809, 831, 0,
1828                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1829         /* 1280x960@60Hz */
1830         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1831                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1832                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1833         /* 1280x1024@60Hz */
1834         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1835                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1836                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1837         /* 1360x768@60Hz */
1838         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1839                    1536, 1792, 0, 768, 771, 777, 795, 0,
1840                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1841         /* 1440x1050@60Hz */
1842         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1843                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1844                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1845         /* 1440x900@60Hz */
1846         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1847                    1672, 1904, 0, 900, 903, 909, 934, 0,
1848                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1849         /* 1600x1200@60Hz */
1850         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1851                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1852                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1853         /* 1680x1050@60Hz */
1854         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1855                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1856                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1857         /* 1792x1344@60Hz */
1858         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1859                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1860                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1861         /* 1853x1392@60Hz */
1862         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1863                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1864                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1865         /* 1920x1200@60Hz */
1866         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1867                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1868                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1869         /* 1920x1440@60Hz */
1870         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1871                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1872                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1873         /* 2560x1600@60Hz */
1874         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1875                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1876                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1877         /* Terminate */
1878         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1879 };
1880
1881 /**
1882  * vmw_guess_mode_timing - Provide fake timings for a
1883  * 60Hz vrefresh mode.
1884  *
1885  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1886  * members filled in.
1887  */
1888 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1889 {
1890         mode->hsync_start = mode->hdisplay + 50;
1891         mode->hsync_end = mode->hsync_start + 50;
1892         mode->htotal = mode->hsync_end + 50;
1893
1894         mode->vsync_start = mode->vdisplay + 50;
1895         mode->vsync_end = mode->vsync_start + 50;
1896         mode->vtotal = mode->vsync_end + 50;
1897
1898         mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1899         mode->vrefresh = drm_mode_vrefresh(mode);
1900 }
1901
1902
1903 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1904                                 uint32_t max_width, uint32_t max_height)
1905 {
1906         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1907         struct drm_device *dev = connector->dev;
1908         struct vmw_private *dev_priv = vmw_priv(dev);
1909         struct drm_display_mode *mode = NULL;
1910         struct drm_display_mode *bmode;
1911         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1912                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1913                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1914                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1915         };
1916         int i;
1917
1918         /* Add preferred mode */
1919         {
1920                 mode = drm_mode_duplicate(dev, &prefmode);
1921                 if (!mode)
1922                         return 0;
1923                 mode->hdisplay = du->pref_width;
1924                 mode->vdisplay = du->pref_height;
1925                 vmw_guess_mode_timing(mode);
1926
1927                 if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1928                                                mode->vdisplay)) {
1929                         drm_mode_probed_add(connector, mode);
1930                 } else {
1931                         drm_mode_destroy(dev, mode);
1932                         mode = NULL;
1933                 }
1934
1935                 if (du->pref_mode) {
1936                         list_del_init(&du->pref_mode->head);
1937                         drm_mode_destroy(dev, du->pref_mode);
1938                 }
1939
1940                 /* mode might be null here, this is intended */
1941                 du->pref_mode = mode;
1942         }
1943
1944         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1945                 bmode = &vmw_kms_connector_builtin[i];
1946                 if (bmode->hdisplay > max_width ||
1947                     bmode->vdisplay > max_height)
1948                         continue;
1949
1950                 if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1951                                                 bmode->vdisplay))
1952                         continue;
1953
1954                 mode = drm_mode_duplicate(dev, bmode);
1955                 if (!mode)
1956                         return 0;
1957                 mode->vrefresh = drm_mode_vrefresh(mode);
1958
1959                 drm_mode_probed_add(connector, mode);
1960         }
1961
1962         /* Move the prefered mode first, help apps pick the right mode. */
1963         if (du->pref_mode)
1964                 list_move(&du->pref_mode->head, &connector->probed_modes);
1965
1966         drm_mode_connector_list_update(connector);
1967
1968         return 1;
1969 }
1970
1971 int vmw_du_connector_set_property(struct drm_connector *connector,
1972                                   struct drm_property *property,
1973                                   uint64_t val)
1974 {
1975         return 0;
1976 }
1977
1978
1979 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1980                                 struct drm_file *file_priv)
1981 {
1982         struct vmw_private *dev_priv = vmw_priv(dev);
1983         struct drm_vmw_update_layout_arg *arg =
1984                 (struct drm_vmw_update_layout_arg *)data;
1985         struct vmw_master *vmaster = vmw_master(file_priv->master);
1986         void __user *user_rects;
1987         struct drm_vmw_rect *rects;
1988         unsigned rects_size;
1989         int ret;
1990         int i;
1991         struct drm_mode_config *mode_config = &dev->mode_config;
1992
1993         ret = ttm_read_lock(&vmaster->lock, true);
1994         if (unlikely(ret != 0))
1995                 return ret;
1996
1997         if (!arg->num_outputs) {
1998                 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1999                 vmw_du_update_layout(dev_priv, 1, &def_rect);
2000                 goto out_unlock;
2001         }
2002
2003         rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2004         rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2005                         GFP_KERNEL);
2006         if (unlikely(!rects)) {
2007                 ret = -ENOMEM;
2008                 goto out_unlock;
2009         }
2010
2011         user_rects = (void __user *)(unsigned long)arg->rects;
2012         ret = copy_from_user(rects, user_rects, rects_size);
2013         if (unlikely(ret != 0)) {
2014                 DRM_ERROR("Failed to get rects.\n");
2015                 ret = -EFAULT;
2016                 goto out_free;
2017         }
2018
2019         for (i = 0; i < arg->num_outputs; ++i) {
2020                 if (rects[i].x < 0 ||
2021                     rects[i].y < 0 ||
2022                     rects[i].x + rects[i].w > mode_config->max_width ||
2023                     rects[i].y + rects[i].h > mode_config->max_height) {
2024                         DRM_ERROR("Invalid GUI layout.\n");
2025                         ret = -EINVAL;
2026                         goto out_free;
2027                 }
2028         }
2029
2030         vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2031
2032 out_free:
2033         kfree(rects);
2034 out_unlock:
2035         ttm_read_unlock(&vmaster->lock);
2036         return ret;
2037 }