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 vmw_display_unit *du = vmw_crtc_to_du(crtc);
 178         struct vmw_surface *surface = NULL;
 179         struct vmw_dma_buffer *dmabuf = NULL;
 180         int ret;
 181
 182         /*
 183          * FIXME: Unclear whether there's any global state touched by the
 184          * cursor_set function, especially vmw_cursor_update_position looks
 185          * suspicious. For now take the easy route and reacquire all locks. We
 186          * can do this since the caller in the drm core doesn't check anything
 187          * which is protected by any looks.
 188          */
 189         mutex_unlock(&crtc->mutex);
 190         drm_modeset_lock_all(dev_priv->dev);
 191
 192         /* A lot of the code assumes this */
 193         if (handle && (width != 64 || height != 64)) {
 194                 ret = -EINVAL;
 195                 goto out;
 196         }
 197
 198         if (handle) {
 199                 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 200
 201                 ret = vmw_user_lookup_handle(dev_priv, tfile,
 202                                              handle, &surface, &dmabuf);
 203                 if (ret) {
 204                         DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
 205                         ret = -EINVAL;
 206                         goto out;
 207                 }
 208         }
 209
 210         /* need to do this before taking down old image */
 211         if (surface && !surface->snooper.image) {
 212                 DRM_ERROR("surface not suitable for cursor\n");
 213                 vmw_surface_unreference(&surface);
 214                 ret = -EINVAL;
 215                 goto out;
 216         }
 217
 218         /* takedown old cursor */
 219         if (du->cursor_surface) {
 220                 du->cursor_surface->snooper.crtc = NULL;
 221                 vmw_surface_unreference(&du->cursor_surface);
 222         }
 223         if (du->cursor_dmabuf)
 224                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
 225
 226         /* setup new image */
 227         if (surface) {
 228                 /* vmw_user_surface_lookup takes one reference */
 229                 du->cursor_surface = surface;
 230
 231                 du->cursor_surface->snooper.crtc = crtc;
 232                 du->cursor_age = du->cursor_surface->snooper.age;
 233                 vmw_cursor_update_image(dev_priv, surface->snooper.image,
 234                                         64, 64, du->hotspot_x, du->hotspot_y);
 235         } else if (dmabuf) {
 236                 /* vmw_user_surface_lookup takes one reference */
 237                 du->cursor_dmabuf = dmabuf;
 238
 239                 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
 240                                                du->hotspot_x, du->hotspot_y);
 241         } else {
 242                 vmw_cursor_update_position(dev_priv, false, 0, 0);
 243                 ret = 0;
 244                 goto out;
 245         }
 246
 247         vmw_cursor_update_position(dev_priv, true,
 248                                    du->cursor_x + du->hotspot_x,
 249                                    du->cursor_y + du->hotspot_y);
 250
 251         ret = 0;
 252 out:
 253         drm_modeset_unlock_all(dev_priv->dev);
 254         mutex_lock(&crtc->mutex);
 255
 256         return ret;
 257 }
 258
 259 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 260 {
 261         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 262         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 263         bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
 264
 265         du->cursor_x = x + crtc->x;
 266         du->cursor_y = y + crtc->y;
 267
 268         /*
 269          * FIXME: Unclear whether there's any global state touched by the
 270          * cursor_set function, especially vmw_cursor_update_position looks
 271          * suspicious. For now take the easy route and reacquire all locks. We
 272          * can do this since the caller in the drm core doesn't check anything
 273          * which is protected by any looks.
 274          */
 275         mutex_unlock(&crtc->mutex);
 276         drm_modeset_lock_all(dev_priv->dev);
 277
 278         vmw_cursor_update_position(dev_priv, shown,
 279                                    du->cursor_x + du->hotspot_x,
 280                                    du->cursor_y + du->hotspot_y);
 281
 282         drm_modeset_unlock_all(dev_priv->dev);
 283         mutex_lock(&crtc->mutex);
 284
 285         return 0;
 286 }
 287
 288 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 289                           struct ttm_object_file *tfile,
 290                           struct ttm_buffer_object *bo,
 291                           SVGA3dCmdHeader *header)
 292 {
 293         struct ttm_bo_kmap_obj map;
 294         unsigned long kmap_offset;
 295         unsigned long kmap_num;
 296         SVGA3dCopyBox *box;
 297         unsigned box_count;
 298         void *virtual;
 299         bool dummy;
 300         struct vmw_dma_cmd {
 301                 SVGA3dCmdHeader header;
 302                 SVGA3dCmdSurfaceDMA dma;
 303         } *cmd;
 304         int i, ret;
 305
 306         cmd = container_of(header, struct vmw_dma_cmd, header);
 307
 308         /* No snooper installed */
 309         if (!srf->snooper.image)
 310                 return;
 311
 312         if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
 313                 DRM_ERROR("face and mipmap for cursors should never != 0\n");
 314                 return;
 315         }
 316
 317         if (cmd->header.size < 64) {
 318                 DRM_ERROR("at least one full copy box must be given\n");
 319                 return;
 320         }
 321
 322         box = (SVGA3dCopyBox *)&cmd[1];
 323         box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
 324                         sizeof(SVGA3dCopyBox);
 325
 326         if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
 327             box->x != 0    || box->y != 0    || box->z != 0    ||
 328             box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
 329             box->d != 1    || box_count != 1) {
 330                 /* TODO handle none page aligned offsets */
 331                 /* TODO handle more dst & src != 0 */
 332                 /* TODO handle more then one copy */
 333                 DRM_ERROR("Cant snoop dma request for cursor!\n");
 334                 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
 335                           box->srcx, box->srcy, box->srcz,
 336                           box->x, box->y, box->z,
 337                           box->w, box->h, box->d, box_count,
 338                           cmd->dma.guest.ptr.offset);
 339                 return;
 340         }
 341
 342         kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
 343         kmap_num = (64*64*4) >> PAGE_SHIFT;
 344
 345         ret = ttm_bo_reserve(bo, true, false, false, 0);
 346         if (unlikely(ret != 0)) {
 347                 DRM_ERROR("reserve failed\n");
 348                 return;
 349         }
 350
 351         ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
 352         if (unlikely(ret != 0))
 353                 goto err_unreserve;
 354
 355         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 356
 357         if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
 358                 memcpy(srf->snooper.image, virtual, 64*64*4);
 359         } else {
 360                 /* Image is unsigned pointer. */
 361                 for (i = 0; i < box->h; i++)
 362                         memcpy(srf->snooper.image + i * 64,
 363                                virtual + i * cmd->dma.guest.pitch,
 364                                box->w * 4);
 365         }
 366
 367         srf->snooper.age++;
 368
 369         /* we can't call this function from this function since execbuf has
 370          * reserved fifo space.
 371          *
 372          * if (srf->snooper.crtc)
 373          *      vmw_ldu_crtc_cursor_update_image(dev_priv,
 374          *                                       srf->snooper.image, 64, 64,
 375          *                                       du->hotspot_x, du->hotspot_y);
 376          */
 377
 378         ttm_bo_kunmap(&map);
 379 err_unreserve:
 380         ttm_bo_unreserve(bo);
 381 }
 382
 383 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
 384 {
 385         struct drm_device *dev = dev_priv->dev;
 386         struct vmw_display_unit *du;
 387         struct drm_crtc *crtc;
 388
 389         mutex_lock(&dev->mode_config.mutex);
 390
 391         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 392                 du = vmw_crtc_to_du(crtc);
 393                 if (!du->cursor_surface ||
 394                     du->cursor_age == du->cursor_surface->snooper.age)
 395                         continue;
 396
 397                 du->cursor_age = du->cursor_surface->snooper.age;
 398                 vmw_cursor_update_image(dev_priv,
 399                                         du->cursor_surface->snooper.image,
 400                                         64, 64, du->hotspot_x, du->hotspot_y);
 401         }
 402
 403         mutex_unlock(&dev->mode_config.mutex);
 404 }
 405
 406 /*
 407  * Generic framebuffer code
 408  */
 409
 410 /*
 411  * Surface framebuffer code
 412  */
 413
 414 #define vmw_framebuffer_to_vfbs(x) \
 415         container_of(x, struct vmw_framebuffer_surface, base.base)
 416
 417 struct vmw_framebuffer_surface {
 418         struct vmw_framebuffer base;
 419         struct vmw_surface *surface;
 420         struct vmw_dma_buffer *buffer;
 421         struct list_head head;
 422         struct drm_master *master;
 423 };
 424
 425 void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
 426 {
 427         struct vmw_framebuffer_surface *vfbs =
 428                 vmw_framebuffer_to_vfbs(framebuffer);
 429         struct vmw_master *vmaster = vmw_master(vfbs->master);
 430
 431
 432         mutex_lock(&vmaster->fb_surf_mutex);
 433         list_del(&vfbs->head);
 434         mutex_unlock(&vmaster->fb_surf_mutex);
 435
 436         drm_master_put(&vfbs->master);
 437         drm_framebuffer_cleanup(framebuffer);
 438         vmw_surface_unreference(&vfbs->surface);
 439         ttm_base_object_unref(&vfbs->base.user_obj);
 440
 441         kfree(vfbs);
 442 }
 443
 444 static int do_surface_dirty_sou(struct vmw_private *dev_priv,
 445                                 struct drm_file *file_priv,
 446                                 struct vmw_framebuffer *framebuffer,
 447                                 unsigned flags, unsigned color,
 448                                 struct drm_clip_rect *clips,
 449                                 unsigned num_clips, int inc,
 450                                 struct vmw_fence_obj **out_fence)
 451 {
 452         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 453         struct drm_clip_rect *clips_ptr;
 454         struct drm_clip_rect *tmp;
 455         struct drm_crtc *crtc;
 456         size_t fifo_size;
 457         int i, num_units;
 458         int ret = 0; /* silence warning */
 459         int left, right, top, bottom;
 460
 461         struct {
 462                 SVGA3dCmdHeader header;
 463                 SVGA3dCmdBlitSurfaceToScreen body;
 464         } *cmd;
 465         SVGASignedRect *blits;
 466
 467         num_units = 0;
 468         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
 469                             head) {
 470                 if (crtc->fb != &framebuffer->base)
 471                         continue;
 472                 units[num_units++] = vmw_crtc_to_du(crtc);
 473         }
 474
 475         BUG_ON(!clips || !num_clips);
 476
 477         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
 478         if (unlikely(tmp == NULL)) {
 479                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
 480                 return -ENOMEM;
 481         }
 482
 483         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
 484         cmd = kzalloc(fifo_size, GFP_KERNEL);
 485         if (unlikely(cmd == NULL)) {
 486                 DRM_ERROR("Temporary fifo memory alloc failed.\n");
 487                 ret = -ENOMEM;
 488                 goto out_free_tmp;
 489         }
 490
 491         /* setup blits pointer */
 492         blits = (SVGASignedRect *)&cmd[1];
 493
 494         /* initial clip region */
 495         left = clips->x1;
 496         right = clips->x2;
 497         top = clips->y1;
 498         bottom = clips->y2;
 499
 500         /* skip the first clip rect */
 501         for (i = 1, clips_ptr = clips + inc;
 502              i < num_clips; i++, clips_ptr += inc) {
 503                 left = min_t(int, left, (int)clips_ptr->x1);
 504                 right = max_t(int, right, (int)clips_ptr->x2);
 505                 top = min_t(int, top, (int)clips_ptr->y1);
 506                 bottom = max_t(int, bottom, (int)clips_ptr->y2);
 507         }
 508
 509         /* only need to do this once */
 510         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
 511         cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 512
 513         cmd->body.srcRect.left = left;
 514         cmd->body.srcRect.right = right;
 515         cmd->body.srcRect.top = top;
 516         cmd->body.srcRect.bottom = bottom;
 517
 518         clips_ptr = clips;
 519         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
 520                 tmp[i].x1 = clips_ptr->x1 - left;
 521                 tmp[i].x2 = clips_ptr->x2 - left;
 522                 tmp[i].y1 = clips_ptr->y1 - top;
 523                 tmp[i].y2 = clips_ptr->y2 - top;
 524         }
 525
 526         /* do per unit writing, reuse fifo for each */
 527         for (i = 0; i < num_units; i++) {
 528                 struct vmw_display_unit *unit = units[i];
 529                 struct vmw_clip_rect clip;
 530                 int num;
 531
 532                 clip.x1 = left - unit->crtc.x;
 533                 clip.y1 = top - unit->crtc.y;
 534                 clip.x2 = right - unit->crtc.x;
 535                 clip.y2 = bottom - unit->crtc.y;
 536
 537                 /* skip any crtcs that misses the clip region */
 538                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
 539                     clip.y1 >= unit->crtc.mode.vdisplay ||
 540                     clip.x2 <= 0 || clip.y2 <= 0)
 541                         continue;
 542
 543                 /*
 544                  * In order for the clip rects to be correctly scaled
 545                  * the src and dest rects needs to be the same size.
 546                  */
 547                 cmd->body.destRect.left = clip.x1;
 548                 cmd->body.destRect.right = clip.x2;
 549                 cmd->body.destRect.top = clip.y1;
 550                 cmd->body.destRect.bottom = clip.y2;
 551
 552                 /* create a clip rect of the crtc in dest coords */
 553                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
 554                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
 555                 clip.x1 = 0 - clip.x1;
 556                 clip.y1 = 0 - clip.y1;
 557
 558                 /* need to reset sid as it is changed by execbuf */
 559                 cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
 560                 cmd->body.destScreenId = unit->unit;
 561
 562                 /* clip and write blits to cmd stream */
 563                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
 564
 565                 /* if no cliprects hit skip this */
 566                 if (num == 0)
 567                         continue;
 568
 569                 /* only return the last fence */
 570                 if (out_fence && *out_fence)
 571                         vmw_fence_obj_unreference(out_fence);
 572
 573                 /* recalculate package length */
 574                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
 575                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 576                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 577                                           fifo_size, 0, NULL, out_fence);
 578
 579                 if (unlikely(ret != 0))
 580                         break;
 581         }
 582
 583
 584         kfree(cmd);
 585 out_free_tmp:
 586         kfree(tmp);
 587
 588         return ret;
 589 }
 590
 591 int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
 592                                   struct drm_file *file_priv,
 593                                   unsigned flags, unsigned color,
 594                                   struct drm_clip_rect *clips,
 595                                   unsigned num_clips)
 596 {
 597         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 598         struct vmw_master *vmaster = vmw_master(file_priv->master);
 599         struct vmw_framebuffer_surface *vfbs =
 600                 vmw_framebuffer_to_vfbs(framebuffer);
 601         struct drm_clip_rect norect;
 602         int ret, inc = 1;
 603
 604         if (unlikely(vfbs->master != file_priv->master))
 605                 return -EINVAL;
 606
 607         /* Require ScreenObject support for 3D */
 608         if (!dev_priv->sou_priv)
 609                 return -EINVAL;
 610
 611         ret = ttm_read_lock(&vmaster->lock, true);
 612         if (unlikely(ret != 0))
 613                 return ret;
 614
 615         if (!num_clips) {
 616                 num_clips = 1;
 617                 clips = &norect;
 618                 norect.x1 = norect.y1 = 0;
 619                 norect.x2 = framebuffer->width;
 620                 norect.y2 = framebuffer->height;
 621         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 622                 num_clips /= 2;
 623                 inc = 2; /* skip source rects */
 624         }
 625
 626         ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
 627                                    flags, color,
 628                                    clips, num_clips, inc, NULL);
 629
 630         ttm_read_unlock(&vmaster->lock);
 631         return 0;
 632 }
 633
 634 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
 635         .destroy = vmw_framebuffer_surface_destroy,
 636         .dirty = vmw_framebuffer_surface_dirty,
 637 };
 638
 639 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
 640                                            struct drm_file *file_priv,
 641                                            struct vmw_surface *surface,
 642                                            struct vmw_framebuffer **out,
 643                                            const struct drm_mode_fb_cmd
 644                                            *mode_cmd)
 645
 646 {
 647         struct drm_device *dev = dev_priv->dev;
 648         struct vmw_framebuffer_surface *vfbs;
 649         enum SVGA3dSurfaceFormat format;
 650         struct vmw_master *vmaster = vmw_master(file_priv->master);
 651         int ret;
 652
 653         /* 3D is only supported on HWv8 hosts which supports screen objects */
 654         if (!dev_priv->sou_priv)
 655                 return -ENOSYS;
 656
 657         /*
 658          * Sanity checks.
 659          */
 660
 661         /* Surface must be marked as a scanout. */
 662         if (unlikely(!surface->scanout))
 663                 return -EINVAL;
 664
 665         if (unlikely(surface->mip_levels[0] != 1 ||
 666                      surface->num_sizes != 1 ||
 667                      surface->sizes[0].width < mode_cmd->width ||
 668                      surface->sizes[0].height < mode_cmd->height ||
 669                      surface->sizes[0].depth != 1)) {
 670                 DRM_ERROR("Incompatible surface dimensions "
 671                           "for requested mode.\n");
 672                 return -EINVAL;
 673         }
 674
 675         switch (mode_cmd->depth) {
 676         case 32:
 677                 format = SVGA3D_A8R8G8B8;
 678                 break;
 679         case 24:
 680                 format = SVGA3D_X8R8G8B8;
 681                 break;
 682         case 16:
 683                 format = SVGA3D_R5G6B5;
 684                 break;
 685         case 15:
 686                 format = SVGA3D_A1R5G5B5;
 687                 break;
 688         case 8:
 689                 format = SVGA3D_LUMINANCE8;
 690                 break;
 691         default:
 692                 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 693                 return -EINVAL;
 694         }
 695
 696         if (unlikely(format != surface->format)) {
 697                 DRM_ERROR("Invalid surface format for requested mode.\n");
 698                 return -EINVAL;
 699         }
 700
 701         vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
 702         if (!vfbs) {
 703                 ret = -ENOMEM;
 704                 goto out_err1;
 705         }
 706
 707         if (!vmw_surface_reference(surface)) {
 708                 DRM_ERROR("failed to reference surface %p\n", surface);
 709                 ret = -EINVAL;
 710                 goto out_err2;
 711         }
 712
 713         /* XXX get the first 3 from the surface info */
 714         vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
 715         vfbs->base.base.pitches[0] = mode_cmd->pitch;
 716         vfbs->base.base.depth = mode_cmd->depth;
 717         vfbs->base.base.width = mode_cmd->width;
 718         vfbs->base.base.height = mode_cmd->height;
 719         vfbs->surface = surface;
 720         vfbs->base.user_handle = mode_cmd->handle;
 721         vfbs->master = drm_master_get(file_priv->master);
 722
 723         mutex_lock(&vmaster->fb_surf_mutex);
 724         list_add_tail(&vfbs->head, &vmaster->fb_surf);
 725         mutex_unlock(&vmaster->fb_surf_mutex);
 726
 727         *out = &vfbs->base;
 728
 729         ret = drm_framebuffer_init(dev, &vfbs->base.base,
 730                                    &vmw_framebuffer_surface_funcs);
 731         if (ret)
 732                 goto out_err3;
 733
 734         return 0;
 735
 736 out_err3:
 737         vmw_surface_unreference(&surface);
 738 out_err2:
 739         kfree(vfbs);
 740 out_err1:
 741         return ret;
 742 }
 743
 744 /*
 745  * Dmabuf framebuffer code
 746  */
 747
 748 #define vmw_framebuffer_to_vfbd(x) \
 749         container_of(x, struct vmw_framebuffer_dmabuf, base.base)
 750
 751 struct vmw_framebuffer_dmabuf {
 752         struct vmw_framebuffer base;
 753         struct vmw_dma_buffer *buffer;
 754 };
 755
 756 void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
 757 {
 758         struct vmw_framebuffer_dmabuf *vfbd =
 759                 vmw_framebuffer_to_vfbd(framebuffer);
 760
 761         drm_framebuffer_cleanup(framebuffer);
 762         vmw_dmabuf_unreference(&vfbd->buffer);
 763         ttm_base_object_unref(&vfbd->base.user_obj);
 764
 765         kfree(vfbd);
 766 }
 767
 768 static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
 769                                struct vmw_framebuffer *framebuffer,
 770                                unsigned flags, unsigned color,
 771                                struct drm_clip_rect *clips,
 772                                unsigned num_clips, int increment)
 773 {
 774         size_t fifo_size;
 775         int i;
 776
 777         struct {
 778                 uint32_t header;
 779                 SVGAFifoCmdUpdate body;
 780         } *cmd;
 781
 782         fifo_size = sizeof(*cmd) * num_clips;
 783         cmd = vmw_fifo_reserve(dev_priv, fifo_size);
 784         if (unlikely(cmd == NULL)) {
 785                 DRM_ERROR("Fifo reserve failed.\n");
 786                 return -ENOMEM;
 787         }
 788
 789         memset(cmd, 0, fifo_size);
 790         for (i = 0; i < num_clips; i++, clips += increment) {
 791                 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
 792                 cmd[i].body.x = cpu_to_le32(clips->x1);
 793                 cmd[i].body.y = cpu_to_le32(clips->y1);
 794                 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
 795                 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
 796         }
 797
 798         vmw_fifo_commit(dev_priv, fifo_size);
 799         return 0;
 800 }
 801
 802 static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
 803                                   struct vmw_private *dev_priv,
 804                                   struct vmw_framebuffer *framebuffer)
 805 {
 806         int depth = framebuffer->base.depth;
 807         size_t fifo_size;
 808         int ret;
 809
 810         struct {
 811                 uint32_t header;
 812                 SVGAFifoCmdDefineGMRFB body;
 813         } *cmd;
 814
 815         /* Emulate RGBA support, contrary to svga_reg.h this is not
 816          * supported by hosts. This is only a problem if we are reading
 817          * this value later and expecting what we uploaded back.
 818          */
 819         if (depth == 32)
 820                 depth = 24;
 821
 822         fifo_size = sizeof(*cmd);
 823         cmd = kmalloc(fifo_size, GFP_KERNEL);
 824         if (unlikely(cmd == NULL)) {
 825                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 826                 return -ENOMEM;
 827         }
 828
 829         memset(cmd, 0, fifo_size);
 830         cmd->header = SVGA_CMD_DEFINE_GMRFB;
 831         cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
 832         cmd->body.format.colorDepth = depth;
 833         cmd->body.format.reserved = 0;
 834         cmd->body.bytesPerLine = framebuffer->base.pitches[0];
 835         cmd->body.ptr.gmrId = framebuffer->user_handle;
 836         cmd->body.ptr.offset = 0;
 837
 838         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 839                                   fifo_size, 0, NULL, NULL);
 840
 841         kfree(cmd);
 842
 843         return ret;
 844 }
 845
 846 static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
 847                                struct vmw_private *dev_priv,
 848                                struct vmw_framebuffer *framebuffer,
 849                                unsigned flags, unsigned color,
 850                                struct drm_clip_rect *clips,
 851                                unsigned num_clips, int increment,
 852                                struct vmw_fence_obj **out_fence)
 853 {
 854         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 855         struct drm_clip_rect *clips_ptr;
 856         int i, k, num_units, ret;
 857         struct drm_crtc *crtc;
 858         size_t fifo_size;
 859
 860         struct {
 861                 uint32_t header;
 862                 SVGAFifoCmdBlitGMRFBToScreen body;
 863         } *blits;
 864
 865         ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
 866         if (unlikely(ret != 0))
 867                 return ret; /* define_gmrfb prints warnings */
 868
 869         fifo_size = sizeof(*blits) * num_clips;
 870         blits = kmalloc(fifo_size, GFP_KERNEL);
 871         if (unlikely(blits == NULL)) {
 872                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 873                 return -ENOMEM;
 874         }
 875
 876         num_units = 0;
 877         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
 878                 if (crtc->fb != &framebuffer->base)
 879                         continue;
 880                 units[num_units++] = vmw_crtc_to_du(crtc);
 881         }
 882
 883         for (k = 0; k < num_units; k++) {
 884                 struct vmw_display_unit *unit = units[k];
 885                 int hit_num = 0;
 886
 887                 clips_ptr = clips;
 888                 for (i = 0; i < num_clips; i++, clips_ptr += increment) {
 889                         int clip_x1 = clips_ptr->x1 - unit->crtc.x;
 890                         int clip_y1 = clips_ptr->y1 - unit->crtc.y;
 891                         int clip_x2 = clips_ptr->x2 - unit->crtc.x;
 892                         int clip_y2 = clips_ptr->y2 - unit->crtc.y;
 893                         int move_x, move_y;
 894
 895                         /* skip any crtcs that misses the clip region */
 896                         if (clip_x1 >= unit->crtc.mode.hdisplay ||
 897                             clip_y1 >= unit->crtc.mode.vdisplay ||
 898                             clip_x2 <= 0 || clip_y2 <= 0)
 899                                 continue;
 900
 901                         /* clip size to crtc size */
 902                         clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
 903                         clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
 904
 905                         /* translate both src and dest to bring clip into screen */
 906                         move_x = min_t(int, clip_x1, 0);
 907                         move_y = min_t(int, clip_y1, 0);
 908
 909                         /* actual translate done here */
 910                         blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
 911                         blits[hit_num].body.destScreenId = unit->unit;
 912                         blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
 913                         blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
 914                         blits[hit_num].body.destRect.left = clip_x1 - move_x;
 915                         blits[hit_num].body.destRect.top = clip_y1 - move_y;
 916                         blits[hit_num].body.destRect.right = clip_x2;
 917                         blits[hit_num].body.destRect.bottom = clip_y2;
 918                         hit_num++;
 919                 }
 920
 921                 /* no clips hit the crtc */
 922                 if (hit_num == 0)
 923                         continue;
 924
 925                 /* only return the last fence */
 926                 if (out_fence && *out_fence)
 927                         vmw_fence_obj_unreference(out_fence);
 928
 929                 fifo_size = sizeof(*blits) * hit_num;
 930                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
 931                                           fifo_size, 0, NULL, out_fence);
 932
 933                 if (unlikely(ret != 0))
 934                         break;
 935         }
 936
 937         kfree(blits);
 938
 939         return ret;
 940 }
 941
 942 int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
 943                                  struct drm_file *file_priv,
 944                                  unsigned flags, unsigned color,
 945                                  struct drm_clip_rect *clips,
 946                                  unsigned num_clips)
 947 {
 948         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 949         struct vmw_master *vmaster = vmw_master(file_priv->master);
 950         struct vmw_framebuffer_dmabuf *vfbd =
 951                 vmw_framebuffer_to_vfbd(framebuffer);
 952         struct drm_clip_rect norect;
 953         int ret, increment = 1;
 954
 955         ret = ttm_read_lock(&vmaster->lock, true);
 956         if (unlikely(ret != 0))
 957                 return ret;
 958
 959         if (!num_clips) {
 960                 num_clips = 1;
 961                 clips = &norect;
 962                 norect.x1 = norect.y1 = 0;
 963                 norect.x2 = framebuffer->width;
 964                 norect.y2 = framebuffer->height;
 965         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 966                 num_clips /= 2;
 967                 increment = 2;
 968         }
 969
 970         if (dev_priv->ldu_priv) {
 971                 ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
 972                                           flags, color,
 973                                           clips, num_clips, increment);
 974         } else {
 975                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
 976                                           flags, color,
 977                                           clips, num_clips, increment, NULL);
 978         }
 979
 980         ttm_read_unlock(&vmaster->lock);
 981         return ret;
 982 }
 983
 984 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
 985         .destroy = vmw_framebuffer_dmabuf_destroy,
 986         .dirty = vmw_framebuffer_dmabuf_dirty,
 987 };
 988
 989 /**
 990  * Pin the dmabuffer to the start of vram.
 991  */
 992 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
 993 {
 994         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 995         struct vmw_framebuffer_dmabuf *vfbd =
 996                 vmw_framebuffer_to_vfbd(&vfb->base);
 997         int ret;
 998
 999         /* This code should not be used with screen objects */
1000         BUG_ON(dev_priv->sou_priv);
1001
1002         vmw_overlay_pause_all(dev_priv);
1003
1004         ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
1005
1006         vmw_overlay_resume_all(dev_priv);
1007
1008         WARN_ON(ret != 0);
1009
1010         return 0;
1011 }
1012
1013 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
1014 {
1015         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1016         struct vmw_framebuffer_dmabuf *vfbd =
1017                 vmw_framebuffer_to_vfbd(&vfb->base);
1018
1019         if (!vfbd->buffer) {
1020                 WARN_ON(!vfbd->buffer);
1021                 return 0;
1022         }
1023
1024         return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
1025 }
1026
1027 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
1028                                           struct vmw_dma_buffer *dmabuf,
1029                                           struct vmw_framebuffer **out,
1030                                           const struct drm_mode_fb_cmd
1031                                           *mode_cmd)
1032
1033 {
1034         struct drm_device *dev = dev_priv->dev;
1035         struct vmw_framebuffer_dmabuf *vfbd;
1036         unsigned int requested_size;
1037         int ret;
1038
1039         requested_size = mode_cmd->height * mode_cmd->pitch;
1040         if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1041                 DRM_ERROR("Screen buffer object size is too small "
1042                           "for requested mode.\n");
1043                 return -EINVAL;
1044         }
1045
1046         /* Limited framebuffer color depth support for screen objects */
1047         if (dev_priv->sou_priv) {
1048                 switch (mode_cmd->depth) {
1049                 case 32:
1050                 case 24:
1051                         /* Only support 32 bpp for 32 and 24 depth fbs */
1052                         if (mode_cmd->bpp == 32)
1053                                 break;
1054
1055                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1056                                   mode_cmd->depth, mode_cmd->bpp);
1057                         return -EINVAL;
1058                 case 16:
1059                 case 15:
1060                         /* Only support 16 bpp for 16 and 15 depth fbs */
1061                         if (mode_cmd->bpp == 16)
1062                                 break;
1063
1064                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1065                                   mode_cmd->depth, mode_cmd->bpp);
1066                         return -EINVAL;
1067                 default:
1068                         DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
1069                         return -EINVAL;
1070                 }
1071         }
1072
1073         vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1074         if (!vfbd) {
1075                 ret = -ENOMEM;
1076                 goto out_err1;
1077         }
1078
1079         if (!vmw_dmabuf_reference(dmabuf)) {
1080                 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
1081                 ret = -EINVAL;
1082                 goto out_err2;
1083         }
1084
1085         vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
1086         vfbd->base.base.pitches[0] = mode_cmd->pitch;
1087         vfbd->base.base.depth = mode_cmd->depth;
1088         vfbd->base.base.width = mode_cmd->width;
1089         vfbd->base.base.height = mode_cmd->height;
1090         if (!dev_priv->sou_priv) {
1091                 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
1092                 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
1093         }
1094         vfbd->base.dmabuf = true;
1095         vfbd->buffer = dmabuf;
1096         vfbd->base.user_handle = mode_cmd->handle;
1097         *out = &vfbd->base;
1098
1099         ret = drm_framebuffer_init(dev, &vfbd->base.base,
1100                                    &vmw_framebuffer_dmabuf_funcs);
1101         if (ret)
1102                 goto out_err3;
1103
1104         return 0;
1105
1106 out_err3:
1107         vmw_dmabuf_unreference(&dmabuf);
1108 out_err2:
1109         kfree(vfbd);
1110 out_err1:
1111         return ret;
1112 }
1113
1114 /*
1115  * Generic Kernel modesetting functions
1116  */
1117
1118 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1119                                                  struct drm_file *file_priv,
1120                                                  struct drm_mode_fb_cmd2 *mode_cmd2)
1121 {
1122         struct vmw_private *dev_priv = vmw_priv(dev);
1123         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1124         struct vmw_framebuffer *vfb = NULL;
1125         struct vmw_surface *surface = NULL;
1126         struct vmw_dma_buffer *bo = NULL;
1127         struct ttm_base_object *user_obj;
1128         struct drm_mode_fb_cmd mode_cmd;
1129         int ret;
1130
1131         mode_cmd.width = mode_cmd2->width;
1132         mode_cmd.height = mode_cmd2->height;
1133         mode_cmd.pitch = mode_cmd2->pitches[0];
1134         mode_cmd.handle = mode_cmd2->handles[0];
1135         drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
1136                                     &mode_cmd.bpp);
1137
1138         /**
1139          * This code should be conditioned on Screen Objects not being used.
1140          * If screen objects are used, we can allocate a GMR to hold the
1141          * requested framebuffer.
1142          */
1143
1144         if (!vmw_kms_validate_mode_vram(dev_priv,
1145                                         mode_cmd.pitch,
1146                                         mode_cmd.height)) {
1147                 DRM_ERROR("VRAM size is too small for requested mode.\n");
1148                 return ERR_PTR(-ENOMEM);
1149         }
1150
1151         /*
1152          * Take a reference on the user object of the resource
1153          * backing the kms fb. This ensures that user-space handle
1154          * lookups on that resource will always work as long as
1155          * it's registered with a kms framebuffer. This is important,
1156          * since vmw_execbuf_process identifies resources in the
1157          * command stream using user-space handles.
1158          */
1159
1160         user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
1161         if (unlikely(user_obj == NULL)) {
1162                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1163                 return ERR_PTR(-ENOENT);
1164         }
1165
1166         /**
1167          * End conditioned code.
1168          */
1169
1170         /* returns either a dmabuf or surface */
1171         ret = vmw_user_lookup_handle(dev_priv, tfile,
1172                                      mode_cmd.handle,
1173                                      &surface, &bo);
1174         if (ret)
1175                 goto err_out;
1176
1177         /* Create the new framebuffer depending one what we got back */
1178         if (bo)
1179                 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1180                                                      &mode_cmd);
1181         else if (surface)
1182                 ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
1183                                                       surface, &vfb, &mode_cmd);
1184         else
1185                 BUG();
1186
1187 err_out:
1188         /* vmw_user_lookup_handle takes one ref so does new_fb */
1189         if (bo)
1190                 vmw_dmabuf_unreference(&bo);
1191         if (surface)
1192                 vmw_surface_unreference(&surface);
1193
1194         if (ret) {
1195                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1196                 ttm_base_object_unref(&user_obj);
1197                 return ERR_PTR(ret);
1198         } else
1199                 vfb->user_obj = user_obj;
1200
1201         return &vfb->base;
1202 }
1203
1204 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1205         .fb_create = vmw_kms_fb_create,
1206 };
1207
1208 int vmw_kms_present(struct vmw_private *dev_priv,
1209                     struct drm_file *file_priv,
1210                     struct vmw_framebuffer *vfb,
1211                     struct vmw_surface *surface,
1212                     uint32_t sid,
1213                     int32_t destX, int32_t destY,
1214                     struct drm_vmw_rect *clips,
1215                     uint32_t num_clips)
1216 {
1217         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1218         struct drm_clip_rect *tmp;
1219         struct drm_crtc *crtc;
1220         size_t fifo_size;
1221         int i, k, num_units;
1222         int ret = 0; /* silence warning */
1223         int left, right, top, bottom;
1224
1225         struct {
1226                 SVGA3dCmdHeader header;
1227                 SVGA3dCmdBlitSurfaceToScreen body;
1228         } *cmd;
1229         SVGASignedRect *blits;
1230
1231         num_units = 0;
1232         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1233                 if (crtc->fb != &vfb->base)
1234                         continue;
1235                 units[num_units++] = vmw_crtc_to_du(crtc);
1236         }
1237
1238         BUG_ON(surface == NULL);
1239         BUG_ON(!clips || !num_clips);
1240
1241         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1242         if (unlikely(tmp == NULL)) {
1243                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1244                 return -ENOMEM;
1245         }
1246
1247         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1248         cmd = kmalloc(fifo_size, GFP_KERNEL);
1249         if (unlikely(cmd == NULL)) {
1250                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1251                 ret = -ENOMEM;
1252                 goto out_free_tmp;
1253         }
1254
1255         left = clips->x;
1256         right = clips->x + clips->w;
1257         top = clips->y;
1258         bottom = clips->y + clips->h;
1259
1260         for (i = 1; i < num_clips; i++) {
1261                 left = min_t(int, left, (int)clips[i].x);
1262                 right = max_t(int, right, (int)clips[i].x + clips[i].w);
1263                 top = min_t(int, top, (int)clips[i].y);
1264                 bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1265         }
1266
1267         /* only need to do this once */
1268         memset(cmd, 0, fifo_size);
1269         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1270
1271         blits = (SVGASignedRect *)&cmd[1];
1272
1273         cmd->body.srcRect.left = left;
1274         cmd->body.srcRect.right = right;
1275         cmd->body.srcRect.top = top;
1276         cmd->body.srcRect.bottom = bottom;
1277
1278         for (i = 0; i < num_clips; i++) {
1279                 tmp[i].x1 = clips[i].x - left;
1280                 tmp[i].x2 = clips[i].x + clips[i].w - left;
1281                 tmp[i].y1 = clips[i].y - top;
1282                 tmp[i].y2 = clips[i].y + clips[i].h - top;
1283         }
1284
1285         for (k = 0; k < num_units; k++) {
1286                 struct vmw_display_unit *unit = units[k];
1287                 struct vmw_clip_rect clip;
1288                 int num;
1289
1290                 clip.x1 = left + destX - unit->crtc.x;
1291                 clip.y1 = top + destY - unit->crtc.y;
1292                 clip.x2 = right + destX - unit->crtc.x;
1293                 clip.y2 = bottom + destY - unit->crtc.y;
1294
1295                 /* skip any crtcs that misses the clip region */
1296                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
1297                     clip.y1 >= unit->crtc.mode.vdisplay ||
1298                     clip.x2 <= 0 || clip.y2 <= 0)
1299                         continue;
1300
1301                 /*
1302                  * In order for the clip rects to be correctly scaled
1303                  * the src and dest rects needs to be the same size.
1304                  */
1305                 cmd->body.destRect.left = clip.x1;
1306                 cmd->body.destRect.right = clip.x2;
1307                 cmd->body.destRect.top = clip.y1;
1308                 cmd->body.destRect.bottom = clip.y2;
1309
1310                 /* create a clip rect of the crtc in dest coords */
1311                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1312                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1313                 clip.x1 = 0 - clip.x1;
1314                 clip.y1 = 0 - clip.y1;
1315
1316                 /* need to reset sid as it is changed by execbuf */
1317                 cmd->body.srcImage.sid = sid;
1318                 cmd->body.destScreenId = unit->unit;
1319
1320                 /* clip and write blits to cmd stream */
1321                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1322
1323                 /* if no cliprects hit skip this */
1324                 if (num == 0)
1325                         continue;
1326
1327                 /* recalculate package length */
1328                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1329                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1330                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1331                                           fifo_size, 0, NULL, NULL);
1332
1333                 if (unlikely(ret != 0))
1334                         break;
1335         }
1336
1337         kfree(cmd);
1338 out_free_tmp:
1339         kfree(tmp);
1340
1341         return ret;
1342 }
1343
1344 int vmw_kms_readback(struct vmw_private *dev_priv,
1345                      struct drm_file *file_priv,
1346                      struct vmw_framebuffer *vfb,
1347                      struct drm_vmw_fence_rep __user *user_fence_rep,
1348                      struct drm_vmw_rect *clips,
1349                      uint32_t num_clips)
1350 {
1351         struct vmw_framebuffer_dmabuf *vfbd =
1352                 vmw_framebuffer_to_vfbd(&vfb->base);
1353         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1354         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1355         struct drm_crtc *crtc;
1356         size_t fifo_size;
1357         int i, k, ret, num_units, blits_pos;
1358
1359         struct {
1360                 uint32_t header;
1361                 SVGAFifoCmdDefineGMRFB body;
1362         } *cmd;
1363         struct {
1364                 uint32_t header;
1365                 SVGAFifoCmdBlitScreenToGMRFB body;
1366         } *blits;
1367
1368         num_units = 0;
1369         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1370                 if (crtc->fb != &vfb->base)
1371                         continue;
1372                 units[num_units++] = vmw_crtc_to_du(crtc);
1373         }
1374
1375         BUG_ON(dmabuf == NULL);
1376         BUG_ON(!clips || !num_clips);
1377
1378         /* take a safe guess at fifo size */
1379         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1380         cmd = kmalloc(fifo_size, GFP_KERNEL);
1381         if (unlikely(cmd == NULL)) {
1382                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1383                 return -ENOMEM;
1384         }
1385
1386         memset(cmd, 0, fifo_size);
1387         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1388         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1389         cmd->body.format.colorDepth = vfb->base.depth;
1390         cmd->body.format.reserved = 0;
1391         cmd->body.bytesPerLine = vfb->base.pitches[0];
1392         cmd->body.ptr.gmrId = vfb->user_handle;
1393         cmd->body.ptr.offset = 0;
1394
1395         blits = (void *)&cmd[1];
1396         blits_pos = 0;
1397         for (i = 0; i < num_units; i++) {
1398                 struct drm_vmw_rect *c = clips;
1399                 for (k = 0; k < num_clips; k++, c++) {
1400                         /* transform clip coords to crtc origin based coords */
1401                         int clip_x1 = c->x - units[i]->crtc.x;
1402                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1403                         int clip_y1 = c->y - units[i]->crtc.y;
1404                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1405                         int dest_x = c->x;
1406                         int dest_y = c->y;
1407
1408                         /* compensate for clipping, we negate
1409                          * a negative number and add that.
1410                          */
1411                         if (clip_x1 < 0)
1412                                 dest_x += -clip_x1;
1413                         if (clip_y1 < 0)
1414                                 dest_y += -clip_y1;
1415
1416                         /* clip */
1417                         clip_x1 = max(clip_x1, 0);
1418                         clip_y1 = max(clip_y1, 0);
1419                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1420                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1421
1422                         /* and cull any rects that misses the crtc */
1423                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1424                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1425                             clip_x2 <= 0 || clip_y2 <= 0)
1426                                 continue;
1427
1428                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1429                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1430                         blits[blits_pos].body.destOrigin.x = dest_x;
1431                         blits[blits_pos].body.destOrigin.y = dest_y;
1432
1433                         blits[blits_pos].body.srcRect.left = clip_x1;
1434                         blits[blits_pos].body.srcRect.top = clip_y1;
1435                         blits[blits_pos].body.srcRect.right = clip_x2;
1436                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1437                         blits_pos++;
1438                 }
1439         }
1440         /* reset size here and use calculated exact size from loops */
1441         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1442
1443         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1444                                   0, user_fence_rep, NULL);
1445
1446         kfree(cmd);
1447
1448         return ret;
1449 }
1450
1451 int vmw_kms_init(struct vmw_private *dev_priv)
1452 {
1453         struct drm_device *dev = dev_priv->dev;
1454         int ret;
1455
1456         drm_mode_config_init(dev);
1457         dev->mode_config.funcs = &vmw_kms_funcs;
1458         dev->mode_config.min_width = 1;
1459         dev->mode_config.min_height = 1;
1460         /* assumed largest fb size */
1461         dev->mode_config.max_width = 8192;
1462         dev->mode_config.max_height = 8192;
1463
1464         ret = vmw_kms_init_screen_object_display(dev_priv);
1465         if (ret) /* Fallback */
1466                 (void)vmw_kms_init_legacy_display_system(dev_priv);
1467
1468         return 0;
1469 }
1470
1471 int vmw_kms_close(struct vmw_private *dev_priv)
1472 {
1473         /*
1474          * Docs says we should take the lock before calling this function
1475          * but since it destroys encoders and our destructor calls
1476          * drm_encoder_cleanup which takes the lock we deadlock.
1477          */
1478         drm_mode_config_cleanup(dev_priv->dev);
1479         if (dev_priv->sou_priv)
1480                 vmw_kms_close_screen_object_display(dev_priv);
1481         else
1482                 vmw_kms_close_legacy_display_system(dev_priv);
1483         return 0;
1484 }
1485
1486 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1487                                 struct drm_file *file_priv)
1488 {
1489         struct drm_vmw_cursor_bypass_arg *arg = data;
1490         struct vmw_display_unit *du;
1491         struct drm_mode_object *obj;
1492         struct drm_crtc *crtc;
1493         int ret = 0;
1494
1495
1496         mutex_lock(&dev->mode_config.mutex);
1497         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1498
1499                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1500                         du = vmw_crtc_to_du(crtc);
1501                         du->hotspot_x = arg->xhot;
1502                         du->hotspot_y = arg->yhot;
1503                 }
1504
1505                 mutex_unlock(&dev->mode_config.mutex);
1506                 return 0;
1507         }
1508
1509         obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
1510         if (!obj) {
1511                 ret = -ENOENT;
1512                 goto out;
1513         }
1514
1515         crtc = obj_to_crtc(obj);
1516         du = vmw_crtc_to_du(crtc);
1517
1518         du->hotspot_x = arg->xhot;
1519         du->hotspot_y = arg->yhot;
1520
1521 out:
1522         mutex_unlock(&dev->mode_config.mutex);
1523
1524         return ret;
1525 }
1526
1527 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1528                         unsigned width, unsigned height, unsigned pitch,
1529                         unsigned bpp, unsigned depth)
1530 {
1531         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1532                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1533         else if (vmw_fifo_have_pitchlock(vmw_priv))
1534                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1535         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1536         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1537         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1538
1539         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1540                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1541                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1542                 return -EINVAL;
1543         }
1544
1545         return 0;
1546 }
1547
1548 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1549 {
1550         struct vmw_vga_topology_state *save;
1551         uint32_t i;
1552
1553         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1554         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1555         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1556         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1557                 vmw_priv->vga_pitchlock =
1558                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1559         else if (vmw_fifo_have_pitchlock(vmw_priv))
1560                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1561                                                        SVGA_FIFO_PITCHLOCK);
1562
1563         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1564                 return 0;
1565
1566         vmw_priv->num_displays = vmw_read(vmw_priv,
1567                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1568
1569         if (vmw_priv->num_displays == 0)
1570                 vmw_priv->num_displays = 1;
1571
1572         for (i = 0; i < vmw_priv->num_displays; ++i) {
1573                 save = &vmw_priv->vga_save[i];
1574                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1575                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1576                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1577                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1578                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1579                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1580                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1581                 if (i == 0 && vmw_priv->num_displays == 1 &&
1582                     save->width == 0 && save->height == 0) {
1583
1584                         /*
1585                          * It should be fairly safe to assume that these
1586                          * values are uninitialized.
1587                          */
1588
1589                         save->width = vmw_priv->vga_width - save->pos_x;
1590                         save->height = vmw_priv->vga_height - save->pos_y;
1591                 }
1592         }
1593
1594         return 0;
1595 }
1596
1597 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1598 {
1599         struct vmw_vga_topology_state *save;
1600         uint32_t i;
1601
1602         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1603         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1604         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1605         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1606                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1607                           vmw_priv->vga_pitchlock);
1608         else if (vmw_fifo_have_pitchlock(vmw_priv))
1609                 iowrite32(vmw_priv->vga_pitchlock,
1610                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1611
1612         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1613                 return 0;
1614
1615         for (i = 0; i < vmw_priv->num_displays; ++i) {
1616                 save = &vmw_priv->vga_save[i];
1617                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1618                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1619                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1620                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1621                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1622                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1623                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1624         }
1625
1626         return 0;
1627 }
1628
1629 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1630                                 uint32_t pitch,
1631                                 uint32_t height)
1632 {
1633         return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1634 }
1635
1636
1637 /**
1638  * Function called by DRM code called with vbl_lock held.
1639  */
1640 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1641 {
1642         return 0;
1643 }
1644
1645 /**
1646  * Function called by DRM code called with vbl_lock held.
1647  */
1648 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1649 {
1650         return -ENOSYS;
1651 }
1652
1653 /**
1654  * Function called by DRM code called with vbl_lock held.
1655  */
1656 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1657 {
1658 }
1659
1660
1661 /*
1662  * Small shared kms functions.
1663  */
1664
1665 int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1666                          struct drm_vmw_rect *rects)
1667 {
1668         struct drm_device *dev = dev_priv->dev;
1669         struct vmw_display_unit *du;
1670         struct drm_connector *con;
1671
1672         mutex_lock(&dev->mode_config.mutex);
1673
1674 #if 0
1675         {
1676                 unsigned int i;
1677
1678                 DRM_INFO("%s: new layout ", __func__);
1679                 for (i = 0; i < num; i++)
1680                         DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1681                                  rects[i].w, rects[i].h);
1682                 DRM_INFO("\n");
1683         }
1684 #endif
1685
1686         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1687                 du = vmw_connector_to_du(con);
1688                 if (num > du->unit) {
1689                         du->pref_width = rects[du->unit].w;
1690                         du->pref_height = rects[du->unit].h;
1691                         du->pref_active = true;
1692                         du->gui_x = rects[du->unit].x;
1693                         du->gui_y = rects[du->unit].y;
1694                 } else {
1695                         du->pref_width = 800;
1696                         du->pref_height = 600;
1697                         du->pref_active = false;
1698                 }
1699                 con->status = vmw_du_connector_detect(con, true);
1700         }
1701
1702         mutex_unlock(&dev->mode_config.mutex);
1703
1704         return 0;
1705 }
1706
1707 int vmw_du_page_flip(struct drm_crtc *crtc,
1708                      struct drm_framebuffer *fb,
1709                      struct drm_pending_vblank_event *event,
1710                      uint32_t page_flip_flags)
1711 {
1712         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1713         struct drm_framebuffer *old_fb = crtc->fb;
1714         struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
1715         struct drm_file *file_priv ;
1716         struct vmw_fence_obj *fence = NULL;
1717         struct drm_clip_rect clips;
1718         int ret;
1719
1720         if (event == NULL)
1721                 return -EINVAL;
1722
1723         /* require ScreenObject support for page flipping */
1724         if (!dev_priv->sou_priv)
1725                 return -ENOSYS;
1726
1727         file_priv = event->base.file_priv;
1728         if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
1729                 return -EINVAL;
1730
1731         crtc->fb = fb;
1732
1733         /* do a full screen dirty update */
1734         clips.x1 = clips.y1 = 0;
1735         clips.x2 = fb->width;
1736         clips.y2 = fb->height;
1737
1738         if (vfb->dmabuf)
1739                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
1740                                           0, 0, &clips, 1, 1, &fence);
1741         else
1742                 ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
1743                                            0, 0, &clips, 1, 1, &fence);
1744
1745
1746         if (ret != 0)
1747                 goto out_no_fence;
1748         if (!fence) {
1749                 ret = -EINVAL;
1750                 goto out_no_fence;
1751         }
1752
1753         ret = vmw_event_fence_action_queue(file_priv, fence,
1754                                            &event->base,
1755                                            &event->event.tv_sec,
1756                                            &event->event.tv_usec,
1757                                            true);
1758
1759         /*
1760          * No need to hold on to this now. The only cleanup
1761          * we need to do if we fail is unref the fence.
1762          */
1763         vmw_fence_obj_unreference(&fence);
1764
1765         if (vmw_crtc_to_du(crtc)->is_implicit)
1766                 vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
1767
1768         return ret;
1769
1770 out_no_fence:
1771         crtc->fb = old_fb;
1772         return ret;
1773 }
1774
1775
1776 void vmw_du_crtc_save(struct drm_crtc *crtc)
1777 {
1778 }
1779
1780 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1781 {
1782 }
1783
1784 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1785                            u16 *r, u16 *g, u16 *b,
1786                            uint32_t start, uint32_t size)
1787 {
1788         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1789         int i;
1790
1791         for (i = 0; i < size; i++) {
1792                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1793                           r[i], g[i], b[i]);
1794                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1795                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1796                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1797         }
1798 }
1799
1800 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1801 {
1802 }
1803
1804 void vmw_du_connector_save(struct drm_connector *connector)
1805 {
1806 }
1807
1808 void vmw_du_connector_restore(struct drm_connector *connector)
1809 {
1810 }
1811
1812 enum drm_connector_status
1813 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1814 {
1815         uint32_t num_displays;
1816         struct drm_device *dev = connector->dev;
1817         struct vmw_private *dev_priv = vmw_priv(dev);
1818         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1819
1820         mutex_lock(&dev_priv->hw_mutex);
1821         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1822         mutex_unlock(&dev_priv->hw_mutex);
1823
1824         return ((vmw_connector_to_du(connector)->unit < num_displays &&
1825                  du->pref_active) ?
1826                 connector_status_connected : connector_status_disconnected);
1827 }
1828
1829 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1830         /* 640x480@60Hz */
1831         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1832                    752, 800, 0, 480, 489, 492, 525, 0,
1833                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1834         /* 800x600@60Hz */
1835         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1836                    968, 1056, 0, 600, 601, 605, 628, 0,
1837                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1838         /* 1024x768@60Hz */
1839         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1840                    1184, 1344, 0, 768, 771, 777, 806, 0,
1841                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1842         /* 1152x864@75Hz */
1843         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1844                    1344, 1600, 0, 864, 865, 868, 900, 0,
1845                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1846         /* 1280x768@60Hz */
1847         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1848                    1472, 1664, 0, 768, 771, 778, 798, 0,
1849                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1850         /* 1280x800@60Hz */
1851         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1852                    1480, 1680, 0, 800, 803, 809, 831, 0,
1853                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1854         /* 1280x960@60Hz */
1855         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1856                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1857                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1858         /* 1280x1024@60Hz */
1859         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1860                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1861                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1862         /* 1360x768@60Hz */
1863         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1864                    1536, 1792, 0, 768, 771, 777, 795, 0,
1865                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1866         /* 1440x1050@60Hz */
1867         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1868                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1869                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1870         /* 1440x900@60Hz */
1871         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1872                    1672, 1904, 0, 900, 903, 909, 934, 0,
1873                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1874         /* 1600x1200@60Hz */
1875         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1876                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1877                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1878         /* 1680x1050@60Hz */
1879         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1880                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1881                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1882         /* 1792x1344@60Hz */
1883         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1884                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1885                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1886         /* 1853x1392@60Hz */
1887         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1888                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1889                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1890         /* 1920x1200@60Hz */
1891         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1892                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1893                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1894         /* 1920x1440@60Hz */
1895         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1896                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1897                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1898         /* 2560x1600@60Hz */
1899         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1900                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1901                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1902         /* Terminate */
1903         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1904 };
1905
1906 /**
1907  * vmw_guess_mode_timing - Provide fake timings for a
1908  * 60Hz vrefresh mode.
1909  *
1910  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1911  * members filled in.
1912  */
1913 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1914 {
1915         mode->hsync_start = mode->hdisplay + 50;
1916         mode->hsync_end = mode->hsync_start + 50;
1917         mode->htotal = mode->hsync_end + 50;
1918
1919         mode->vsync_start = mode->vdisplay + 50;
1920         mode->vsync_end = mode->vsync_start + 50;
1921         mode->vtotal = mode->vsync_end + 50;
1922
1923         mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1924         mode->vrefresh = drm_mode_vrefresh(mode);
1925 }
1926
1927
1928 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1929                                 uint32_t max_width, uint32_t max_height)
1930 {
1931         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1932         struct drm_device *dev = connector->dev;
1933         struct vmw_private *dev_priv = vmw_priv(dev);
1934         struct drm_display_mode *mode = NULL;
1935         struct drm_display_mode *bmode;
1936         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1937                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1938                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1939                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1940         };
1941         int i;
1942
1943         /* Add preferred mode */
1944         {
1945                 mode = drm_mode_duplicate(dev, &prefmode);
1946                 if (!mode)
1947                         return 0;
1948                 mode->hdisplay = du->pref_width;
1949                 mode->vdisplay = du->pref_height;
1950                 vmw_guess_mode_timing(mode);
1951
1952                 if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1953                                                mode->vdisplay)) {
1954                         drm_mode_probed_add(connector, mode);
1955                 } else {
1956                         drm_mode_destroy(dev, mode);
1957                         mode = NULL;
1958                 }
1959
1960                 if (du->pref_mode) {
1961                         list_del_init(&du->pref_mode->head);
1962                         drm_mode_destroy(dev, du->pref_mode);
1963                 }
1964
1965                 /* mode might be null here, this is intended */
1966                 du->pref_mode = mode;
1967         }
1968
1969         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1970                 bmode = &vmw_kms_connector_builtin[i];
1971                 if (bmode->hdisplay > max_width ||
1972                     bmode->vdisplay > max_height)
1973                         continue;
1974
1975                 if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1976                                                 bmode->vdisplay))
1977                         continue;
1978
1979                 mode = drm_mode_duplicate(dev, bmode);
1980                 if (!mode)
1981                         return 0;
1982                 mode->vrefresh = drm_mode_vrefresh(mode);
1983
1984                 drm_mode_probed_add(connector, mode);
1985         }
1986
1987         /* Move the prefered mode first, help apps pick the right mode. */
1988         if (du->pref_mode)
1989                 list_move(&du->pref_mode->head, &connector->probed_modes);
1990
1991         drm_mode_connector_list_update(connector);
1992
1993         return 1;
1994 }
1995
1996 int vmw_du_connector_set_property(struct drm_connector *connector,
1997                                   struct drm_property *property,
1998                                   uint64_t val)
1999 {
2000         return 0;
2001 }
2002
2003
2004 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2005                                 struct drm_file *file_priv)
2006 {
2007         struct vmw_private *dev_priv = vmw_priv(dev);
2008         struct drm_vmw_update_layout_arg *arg =
2009                 (struct drm_vmw_update_layout_arg *)data;
2010         struct vmw_master *vmaster = vmw_master(file_priv->master);
2011         void __user *user_rects;
2012         struct drm_vmw_rect *rects;
2013         unsigned rects_size;
2014         int ret;
2015         int i;
2016         struct drm_mode_config *mode_config = &dev->mode_config;
2017
2018         ret = ttm_read_lock(&vmaster->lock, true);
2019         if (unlikely(ret != 0))
2020                 return ret;
2021
2022         if (!arg->num_outputs) {
2023                 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
2024                 vmw_du_update_layout(dev_priv, 1, &def_rect);
2025                 goto out_unlock;
2026         }
2027
2028         rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2029         rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2030                         GFP_KERNEL);
2031         if (unlikely(!rects)) {
2032                 ret = -ENOMEM;
2033                 goto out_unlock;
2034         }
2035
2036         user_rects = (void __user *)(unsigned long)arg->rects;
2037         ret = copy_from_user(rects, user_rects, rects_size);
2038         if (unlikely(ret != 0)) {
2039                 DRM_ERROR("Failed to get rects.\n");
2040                 ret = -EFAULT;
2041                 goto out_free;
2042         }
2043
2044         for (i = 0; i < arg->num_outputs; ++i) {
2045                 if (rects[i].x < 0 ||
2046                     rects[i].y < 0 ||
2047                     rects[i].x + rects[i].w > mode_config->max_width ||
2048                     rects[i].y + rects[i].h > mode_config->max_height) {
2049                         DRM_ERROR("Invalid GUI layout.\n");
2050                         ret = -EINVAL;
2051                         goto out_free;
2052                 }
2053         }
2054
2055         vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2056
2057 out_free:
2058         kfree(rects);
2059 out_unlock:
2060         ttm_read_unlock(&vmaster->lock);
2061         return ret;
2062 }