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.pitch = 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.pitch;
 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.pitch = 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_cmd *mode_cmd)
 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         u64 required_size;
1002         int ret;
1003
1004         /**
1005          * This code should be conditioned on Screen Objects not being used.
1006          * If screen objects are used, we can allocate a GMR to hold the
1007          * requested framebuffer.
1008          */
1009
1010         required_size = mode_cmd->pitch * mode_cmd->height;
1011         if (unlikely(required_size > (u64) dev_priv->vram_size)) {
1012                 DRM_ERROR("VRAM size is too small for requested mode.\n");
1013                 return ERR_PTR(-ENOMEM);
1014         }
1015
1016         /*
1017          * Take a reference on the user object of the resource
1018          * backing the kms fb. This ensures that user-space handle
1019          * lookups on that resource will always work as long as
1020          * it's registered with a kms framebuffer. This is important,
1021          * since vmw_execbuf_process identifies resources in the
1022          * command stream using user-space handles.
1023          */
1024
1025         user_obj = ttm_base_object_lookup(tfile, mode_cmd->handle);
1026         if (unlikely(user_obj == NULL)) {
1027                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1028                 return ERR_PTR(-ENOENT);
1029         }
1030
1031         /**
1032          * End conditioned code.
1033          */
1034
1035         ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
1036                                              mode_cmd->handle, &surface);
1037         if (ret)
1038                 goto try_dmabuf;
1039
1040         if (!surface->scanout)
1041                 goto err_not_scanout;
1042
1043         ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, surface,
1044                                               &vfb, mode_cmd);
1045
1046         /* vmw_user_surface_lookup takes one ref so does new_fb */
1047         vmw_surface_unreference(&surface);
1048
1049         if (ret) {
1050                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1051                 ttm_base_object_unref(&user_obj);
1052                 return ERR_PTR(ret);
1053         } else
1054                 vfb->user_obj = user_obj;
1055         return &vfb->base;
1056
1057 try_dmabuf:
1058         DRM_INFO("%s: trying buffer\n", __func__);
1059
1060         ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo);
1061         if (ret) {
1062                 DRM_ERROR("failed to find buffer: %i\n", ret);
1063                 return ERR_PTR(-ENOENT);
1064         }
1065
1066         ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1067                                              mode_cmd);
1068
1069         /* vmw_user_dmabuf_lookup takes one ref so does new_fb */
1070         vmw_dmabuf_unreference(&bo);
1071
1072         if (ret) {
1073                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1074                 ttm_base_object_unref(&user_obj);
1075                 return ERR_PTR(ret);
1076         } else
1077                 vfb->user_obj = user_obj;
1078
1079         return &vfb->base;
1080
1081 err_not_scanout:
1082         DRM_ERROR("surface not marked as scanout\n");
1083         /* vmw_user_surface_lookup takes one ref */
1084         vmw_surface_unreference(&surface);
1085         ttm_base_object_unref(&user_obj);
1086
1087         return ERR_PTR(-EINVAL);
1088 }
1089
1090 static struct drm_mode_config_funcs vmw_kms_funcs = {
1091         .fb_create = vmw_kms_fb_create,
1092 };
1093
1094 int vmw_kms_present(struct vmw_private *dev_priv,
1095                     struct drm_file *file_priv,
1096                     struct vmw_framebuffer *vfb,
1097                     struct vmw_surface *surface,
1098                     uint32_t sid,
1099                     int32_t destX, int32_t destY,
1100                     struct drm_vmw_rect *clips,
1101                     uint32_t num_clips)
1102 {
1103         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1104         struct drm_crtc *crtc;
1105         size_t fifo_size;
1106         int i, k, num_units;
1107         int ret = 0; /* silence warning */
1108
1109         struct {
1110                 SVGA3dCmdHeader header;
1111                 SVGA3dCmdBlitSurfaceToScreen body;
1112         } *cmd;
1113         SVGASignedRect *blits;
1114
1115         num_units = 0;
1116         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1117                 if (crtc->fb != &vfb->base)
1118                         continue;
1119                 units[num_units++] = vmw_crtc_to_du(crtc);
1120         }
1121
1122         BUG_ON(surface == NULL);
1123         BUG_ON(!clips || !num_clips);
1124
1125         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1126         cmd = kmalloc(fifo_size, GFP_KERNEL);
1127         if (unlikely(cmd == NULL)) {
1128                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1129                 return -ENOMEM;
1130         }
1131
1132         /* only need to do this once */
1133         memset(cmd, 0, fifo_size);
1134         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1135         cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1136
1137         cmd->body.srcRect.left = 0;
1138         cmd->body.srcRect.right = surface->sizes[0].width;
1139         cmd->body.srcRect.top = 0;
1140         cmd->body.srcRect.bottom = surface->sizes[0].height;
1141
1142         blits = (SVGASignedRect *)&cmd[1];
1143         for (i = 0; i < num_clips; i++) {
1144                 blits[i].left   = clips[i].x;
1145                 blits[i].right  = clips[i].x + clips[i].w;
1146                 blits[i].top    = clips[i].y;
1147                 blits[i].bottom = clips[i].y + clips[i].h;
1148         }
1149
1150         for (k = 0; k < num_units; k++) {
1151                 struct vmw_display_unit *unit = units[k];
1152                 int clip_x1 = destX - unit->crtc.x;
1153                 int clip_y1 = destY - unit->crtc.y;
1154                 int clip_x2 = clip_x1 + surface->sizes[0].width;
1155                 int clip_y2 = clip_y1 + surface->sizes[0].height;
1156
1157                 /* skip any crtcs that misses the clip region */
1158                 if (clip_x1 >= unit->crtc.mode.hdisplay ||
1159                     clip_y1 >= unit->crtc.mode.vdisplay ||
1160                     clip_x2 <= 0 || clip_y2 <= 0)
1161                         continue;
1162
1163                 /* need to reset sid as it is changed by execbuf */
1164                 cmd->body.srcImage.sid = sid;
1165
1166                 cmd->body.destScreenId = unit->unit;
1167
1168                 /*
1169                  * The blit command is a lot more resilient then the
1170                  * readback command when it comes to clip rects. So its
1171                  * okay to go out of bounds.
1172                  */
1173
1174                 cmd->body.destRect.left = clip_x1;
1175                 cmd->body.destRect.right = clip_x2;
1176                 cmd->body.destRect.top = clip_y1;
1177                 cmd->body.destRect.bottom = clip_y2;
1178
1179                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1180                                           fifo_size, 0, NULL);
1181
1182                 if (unlikely(ret != 0))
1183                         break;
1184         }
1185
1186         kfree(cmd);
1187
1188         return ret;
1189 }
1190
1191 int vmw_kms_readback(struct vmw_private *dev_priv,
1192                      struct drm_file *file_priv,
1193                      struct vmw_framebuffer *vfb,
1194                      struct drm_vmw_fence_rep __user *user_fence_rep,
1195                      struct drm_vmw_rect *clips,
1196                      uint32_t num_clips)
1197 {
1198         struct vmw_framebuffer_dmabuf *vfbd =
1199                 vmw_framebuffer_to_vfbd(&vfb->base);
1200         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1201         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1202         struct drm_crtc *crtc;
1203         size_t fifo_size;
1204         int i, k, ret, num_units, blits_pos;
1205
1206         struct {
1207                 uint32_t header;
1208                 SVGAFifoCmdDefineGMRFB body;
1209         } *cmd;
1210         struct {
1211                 uint32_t header;
1212                 SVGAFifoCmdBlitScreenToGMRFB body;
1213         } *blits;
1214
1215         num_units = 0;
1216         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1217                 if (crtc->fb != &vfb->base)
1218                         continue;
1219                 units[num_units++] = vmw_crtc_to_du(crtc);
1220         }
1221
1222         BUG_ON(dmabuf == NULL);
1223         BUG_ON(!clips || !num_clips);
1224
1225         /* take a safe guess at fifo size */
1226         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1227         cmd = kmalloc(fifo_size, GFP_KERNEL);
1228         if (unlikely(cmd == NULL)) {
1229                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1230                 return -ENOMEM;
1231         }
1232
1233         memset(cmd, 0, fifo_size);
1234         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1235         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1236         cmd->body.format.colorDepth = vfb->base.depth;
1237         cmd->body.format.reserved = 0;
1238         cmd->body.bytesPerLine = vfb->base.pitch;
1239         cmd->body.ptr.gmrId = vfb->user_handle;
1240         cmd->body.ptr.offset = 0;
1241
1242         blits = (void *)&cmd[1];
1243         blits_pos = 0;
1244         for (i = 0; i < num_units; i++) {
1245                 struct drm_vmw_rect *c = clips;
1246                 for (k = 0; k < num_clips; k++, c++) {
1247                         /* transform clip coords to crtc origin based coords */
1248                         int clip_x1 = c->x - units[i]->crtc.x;
1249                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1250                         int clip_y1 = c->y - units[i]->crtc.y;
1251                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1252                         int dest_x = c->x;
1253                         int dest_y = c->y;
1254
1255                         /* compensate for clipping, we negate
1256                          * a negative number and add that.
1257                          */
1258                         if (clip_x1 < 0)
1259                                 dest_x += -clip_x1;
1260                         if (clip_y1 < 0)
1261                                 dest_y += -clip_y1;
1262
1263                         /* clip */
1264                         clip_x1 = max(clip_x1, 0);
1265                         clip_y1 = max(clip_y1, 0);
1266                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1267                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1268
1269                         /* and cull any rects that misses the crtc */
1270                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1271                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1272                             clip_x2 <= 0 || clip_y2 <= 0)
1273                                 continue;
1274
1275                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1276                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1277                         blits[blits_pos].body.destOrigin.x = dest_x;
1278                         blits[blits_pos].body.destOrigin.y = dest_y;
1279
1280                         blits[blits_pos].body.srcRect.left = clip_x1;
1281                         blits[blits_pos].body.srcRect.top = clip_y1;
1282                         blits[blits_pos].body.srcRect.right = clip_x2;
1283                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1284                         blits_pos++;
1285                 }
1286         }
1287         /* reset size here and use calculated exact size from loops */
1288         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1289
1290         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1291                                   0, user_fence_rep);
1292
1293         kfree(cmd);
1294
1295         return ret;
1296 }
1297
1298 int vmw_kms_init(struct vmw_private *dev_priv)
1299 {
1300         struct drm_device *dev = dev_priv->dev;
1301         int ret;
1302
1303         drm_mode_config_init(dev);
1304         dev->mode_config.funcs = &vmw_kms_funcs;
1305         dev->mode_config.min_width = 1;
1306         dev->mode_config.min_height = 1;
1307         /* assumed largest fb size */
1308         dev->mode_config.max_width = 8192;
1309         dev->mode_config.max_height = 8192;
1310
1311         ret = vmw_kms_init_screen_object_display(dev_priv);
1312         if (ret) /* Fallback */
1313                 (void)vmw_kms_init_legacy_display_system(dev_priv);
1314
1315         return 0;
1316 }
1317
1318 int vmw_kms_close(struct vmw_private *dev_priv)
1319 {
1320         /*
1321          * Docs says we should take the lock before calling this function
1322          * but since it destroys encoders and our destructor calls
1323          * drm_encoder_cleanup which takes the lock we deadlock.
1324          */
1325         drm_mode_config_cleanup(dev_priv->dev);
1326         vmw_kms_close_legacy_display_system(dev_priv);
1327         return 0;
1328 }
1329
1330 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1331                                 struct drm_file *file_priv)
1332 {
1333         struct drm_vmw_cursor_bypass_arg *arg = data;
1334         struct vmw_display_unit *du;
1335         struct drm_mode_object *obj;
1336         struct drm_crtc *crtc;
1337         int ret = 0;
1338
1339
1340         mutex_lock(&dev->mode_config.mutex);
1341         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1342
1343                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1344                         du = vmw_crtc_to_du(crtc);
1345                         du->hotspot_x = arg->xhot;
1346                         du->hotspot_y = arg->yhot;
1347                 }
1348
1349                 mutex_unlock(&dev->mode_config.mutex);
1350                 return 0;
1351         }
1352
1353         obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
1354         if (!obj) {
1355                 ret = -EINVAL;
1356                 goto out;
1357         }
1358
1359         crtc = obj_to_crtc(obj);
1360         du = vmw_crtc_to_du(crtc);
1361
1362         du->hotspot_x = arg->xhot;
1363         du->hotspot_y = arg->yhot;
1364
1365 out:
1366         mutex_unlock(&dev->mode_config.mutex);
1367
1368         return ret;
1369 }
1370
1371 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1372                         unsigned width, unsigned height, unsigned pitch,
1373                         unsigned bpp, unsigned depth)
1374 {
1375         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1376                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1377         else if (vmw_fifo_have_pitchlock(vmw_priv))
1378                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1379         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1380         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1381         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1382
1383         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1384                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1385                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1386                 return -EINVAL;
1387         }
1388
1389         return 0;
1390 }
1391
1392 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1393 {
1394         struct vmw_vga_topology_state *save;
1395         uint32_t i;
1396
1397         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1398         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1399         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1400         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1401                 vmw_priv->vga_pitchlock =
1402                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1403         else if (vmw_fifo_have_pitchlock(vmw_priv))
1404                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1405                                                        SVGA_FIFO_PITCHLOCK);
1406
1407         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1408                 return 0;
1409
1410         vmw_priv->num_displays = vmw_read(vmw_priv,
1411                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1412
1413         if (vmw_priv->num_displays == 0)
1414                 vmw_priv->num_displays = 1;
1415
1416         for (i = 0; i < vmw_priv->num_displays; ++i) {
1417                 save = &vmw_priv->vga_save[i];
1418                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1419                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1420                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1421                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1422                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1423                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1424                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1425                 if (i == 0 && vmw_priv->num_displays == 1 &&
1426                     save->width == 0 && save->height == 0) {
1427
1428                         /*
1429                          * It should be fairly safe to assume that these
1430                          * values are uninitialized.
1431                          */
1432
1433                         save->width = vmw_priv->vga_width - save->pos_x;
1434                         save->height = vmw_priv->vga_height - save->pos_y;
1435                 }
1436         }
1437
1438         return 0;
1439 }
1440
1441 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1442 {
1443         struct vmw_vga_topology_state *save;
1444         uint32_t i;
1445
1446         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1447         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1448         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1449         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1450                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1451                           vmw_priv->vga_pitchlock);
1452         else if (vmw_fifo_have_pitchlock(vmw_priv))
1453                 iowrite32(vmw_priv->vga_pitchlock,
1454                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1455
1456         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1457                 return 0;
1458
1459         for (i = 0; i < vmw_priv->num_displays; ++i) {
1460                 save = &vmw_priv->vga_save[i];
1461                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1462                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1463                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1464                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1465                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1466                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1467                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1468         }
1469
1470         return 0;
1471 }
1472
1473 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1474                                 uint32_t pitch,
1475                                 uint32_t height)
1476 {
1477         return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1478 }
1479
1480
1481 /**
1482  * Function called by DRM code called with vbl_lock held.
1483  */
1484 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1485 {
1486         return 0;
1487 }
1488
1489 /**
1490  * Function called by DRM code called with vbl_lock held.
1491  */
1492 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1493 {
1494         return -ENOSYS;
1495 }
1496
1497 /**
1498  * Function called by DRM code called with vbl_lock held.
1499  */
1500 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1501 {
1502 }
1503
1504
1505 /*
1506  * Small shared kms functions.
1507  */
1508
1509 int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1510                          struct drm_vmw_rect *rects)
1511 {
1512         struct drm_device *dev = dev_priv->dev;
1513         struct vmw_display_unit *du;
1514         struct drm_connector *con;
1515
1516         mutex_lock(&dev->mode_config.mutex);
1517
1518 #if 0
1519         {
1520                 unsigned int i;
1521
1522                 DRM_INFO("%s: new layout ", __func__);
1523                 for (i = 0; i < num; i++)
1524                         DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1525                                  rects[i].w, rects[i].h);
1526                 DRM_INFO("\n");
1527         }
1528 #endif
1529
1530         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1531                 du = vmw_connector_to_du(con);
1532                 if (num > du->unit) {
1533                         du->pref_width = rects[du->unit].w;
1534                         du->pref_height = rects[du->unit].h;
1535                         du->pref_active = true;
1536                         du->gui_x = rects[du->unit].x;
1537                         du->gui_y = rects[du->unit].y;
1538                 } else {
1539                         du->pref_width = 800;
1540                         du->pref_height = 600;
1541                         du->pref_active = false;
1542                 }
1543                 con->status = vmw_du_connector_detect(con, true);
1544         }
1545
1546         mutex_unlock(&dev->mode_config.mutex);
1547
1548         return 0;
1549 }
1550
1551 void vmw_du_crtc_save(struct drm_crtc *crtc)
1552 {
1553 }
1554
1555 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1556 {
1557 }
1558
1559 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1560                            u16 *r, u16 *g, u16 *b,
1561                            uint32_t start, uint32_t size)
1562 {
1563         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1564         int i;
1565
1566         for (i = 0; i < size; i++) {
1567                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1568                           r[i], g[i], b[i]);
1569                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1570                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1571                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1572         }
1573 }
1574
1575 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1576 {
1577 }
1578
1579 void vmw_du_connector_save(struct drm_connector *connector)
1580 {
1581 }
1582
1583 void vmw_du_connector_restore(struct drm_connector *connector)
1584 {
1585 }
1586
1587 enum drm_connector_status
1588 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1589 {
1590         uint32_t num_displays;
1591         struct drm_device *dev = connector->dev;
1592         struct vmw_private *dev_priv = vmw_priv(dev);
1593         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1594
1595         mutex_lock(&dev_priv->hw_mutex);
1596         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1597         mutex_unlock(&dev_priv->hw_mutex);
1598
1599         return ((vmw_connector_to_du(connector)->unit < num_displays &&
1600                  du->pref_active) ?
1601                 connector_status_connected : connector_status_disconnected);
1602 }
1603
1604 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1605         /* 640x480@60Hz */
1606         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1607                    752, 800, 0, 480, 489, 492, 525, 0,
1608                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1609         /* 800x600@60Hz */
1610         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1611                    968, 1056, 0, 600, 601, 605, 628, 0,
1612                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1613         /* 1024x768@60Hz */
1614         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1615                    1184, 1344, 0, 768, 771, 777, 806, 0,
1616                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1617         /* 1152x864@75Hz */
1618         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1619                    1344, 1600, 0, 864, 865, 868, 900, 0,
1620                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1621         /* 1280x768@60Hz */
1622         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1623                    1472, 1664, 0, 768, 771, 778, 798, 0,
1624                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1625         /* 1280x800@60Hz */
1626         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1627                    1480, 1680, 0, 800, 803, 809, 831, 0,
1628                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1629         /* 1280x960@60Hz */
1630         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1631                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1632                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1633         /* 1280x1024@60Hz */
1634         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1635                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1636                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1637         /* 1360x768@60Hz */
1638         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1639                    1536, 1792, 0, 768, 771, 777, 795, 0,
1640                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1641         /* 1440x1050@60Hz */
1642         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1643                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1644                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1645         /* 1440x900@60Hz */
1646         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1647                    1672, 1904, 0, 900, 903, 909, 934, 0,
1648                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1649         /* 1600x1200@60Hz */
1650         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1651                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1652                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1653         /* 1680x1050@60Hz */
1654         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1655                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1656                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1657         /* 1792x1344@60Hz */
1658         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1659                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1660                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1661         /* 1853x1392@60Hz */
1662         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1663                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1664                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1665         /* 1920x1200@60Hz */
1666         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1667                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1668                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1669         /* 1920x1440@60Hz */
1670         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1671                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1672                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1673         /* 2560x1600@60Hz */
1674         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1675                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1676                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1677         /* Terminate */
1678         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1679 };
1680
1681 /**
1682  * vmw_guess_mode_timing - Provide fake timings for a
1683  * 60Hz vrefresh mode.
1684  *
1685  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1686  * members filled in.
1687  */
1688 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1689 {
1690         mode->hsync_start = mode->hdisplay + 50;
1691         mode->hsync_end = mode->hsync_start + 50;
1692         mode->htotal = mode->hsync_end + 50;
1693
1694         mode->vsync_start = mode->vdisplay + 50;
1695         mode->vsync_end = mode->vsync_start + 50;
1696         mode->vtotal = mode->vsync_end + 50;
1697
1698         mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1699         mode->vrefresh = drm_mode_vrefresh(mode);
1700 }
1701
1702
1703 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1704                                 uint32_t max_width, uint32_t max_height)
1705 {
1706         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1707         struct drm_device *dev = connector->dev;
1708         struct vmw_private *dev_priv = vmw_priv(dev);
1709         struct drm_display_mode *mode = NULL;
1710         struct drm_display_mode *bmode;
1711         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1712                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1713                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1714                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1715         };
1716         int i;
1717
1718         /* Add preferred mode */
1719         {
1720                 mode = drm_mode_duplicate(dev, &prefmode);
1721                 if (!mode)
1722                         return 0;
1723                 mode->hdisplay = du->pref_width;
1724                 mode->vdisplay = du->pref_height;
1725                 vmw_guess_mode_timing(mode);
1726
1727                 if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1728                                                mode->vdisplay)) {
1729                         drm_mode_probed_add(connector, mode);
1730                 } else {
1731                         drm_mode_destroy(dev, mode);
1732                         mode = NULL;
1733                 }
1734
1735                 if (du->pref_mode) {
1736                         list_del_init(&du->pref_mode->head);
1737                         drm_mode_destroy(dev, du->pref_mode);
1738                 }
1739
1740                 /* mode might be null here, this is intended */
1741                 du->pref_mode = mode;
1742         }
1743
1744         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1745                 bmode = &vmw_kms_connector_builtin[i];
1746                 if (bmode->hdisplay > max_width ||
1747                     bmode->vdisplay > max_height)
1748                         continue;
1749
1750                 if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1751                                                 bmode->vdisplay))
1752                         continue;
1753
1754                 mode = drm_mode_duplicate(dev, bmode);
1755                 if (!mode)
1756                         return 0;
1757                 mode->vrefresh = drm_mode_vrefresh(mode);
1758
1759                 drm_mode_probed_add(connector, mode);
1760         }
1761
1762         /* Move the prefered mode first, help apps pick the right mode. */
1763         if (du->pref_mode)
1764                 list_move(&du->pref_mode->head, &connector->probed_modes);
1765
1766         drm_mode_connector_list_update(connector);
1767
1768         return 1;
1769 }
1770
1771 int vmw_du_connector_set_property(struct drm_connector *connector,
1772                                   struct drm_property *property,
1773                                   uint64_t val)
1774 {
1775         return 0;
1776 }
1777
1778
1779 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1780                                 struct drm_file *file_priv)
1781 {
1782         struct vmw_private *dev_priv = vmw_priv(dev);
1783         struct drm_vmw_update_layout_arg *arg =
1784                 (struct drm_vmw_update_layout_arg *)data;
1785         struct vmw_master *vmaster = vmw_master(file_priv->master);
1786         void __user *user_rects;
1787         struct drm_vmw_rect *rects;
1788         unsigned rects_size;
1789         int ret;
1790         int i;
1791         struct drm_mode_config *mode_config = &dev->mode_config;
1792
1793         ret = ttm_read_lock(&vmaster->lock, true);
1794         if (unlikely(ret != 0))
1795                 return ret;
1796
1797         if (!arg->num_outputs) {
1798                 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1799                 vmw_du_update_layout(dev_priv, 1, &def_rect);
1800                 goto out_unlock;
1801         }
1802
1803         rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
1804         rects = kzalloc(rects_size, GFP_KERNEL);
1805         if (unlikely(!rects)) {
1806                 ret = -ENOMEM;
1807                 goto out_unlock;
1808         }
1809
1810         user_rects = (void __user *)(unsigned long)arg->rects;
1811         ret = copy_from_user(rects, user_rects, rects_size);
1812         if (unlikely(ret != 0)) {
1813                 DRM_ERROR("Failed to get rects.\n");
1814                 ret = -EFAULT;
1815                 goto out_free;
1816         }
1817
1818         for (i = 0; i < arg->num_outputs; ++i) {
1819                 if (rects->x < 0 ||
1820                     rects->y < 0 ||
1821                     rects->x + rects->w > mode_config->max_width ||
1822                     rects->y + rects->h > mode_config->max_height) {
1823                         DRM_ERROR("Invalid GUI layout.\n");
1824                         ret = -EINVAL;
1825                         goto out_free;
1826                 }
1827         }
1828
1829         vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
1830
1831 out_free:
1832         kfree(rects);
1833 out_unlock:
1834         ttm_read_unlock(&vmaster->lock);
1835         return ret;
1836 }