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