drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "vmwgfx_kms.h"
  29
  30
  31 /* Might need a hrtimer here? */
  32 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
  33
  34
  35 struct vmw_clip_rect {
  36         int x1, x2, y1, y2;
  37 };
  38
  39 /**
  40  * Clip @num_rects number of @rects against @clip storing the
  41  * results in @out_rects and the number of passed rects in @out_num.
  42  */
  43 static void vmw_clip_cliprects(struct drm_clip_rect *rects,
  44                         int num_rects,
  45                         struct vmw_clip_rect clip,
  46                         SVGASignedRect *out_rects,
  47                         int *out_num)
  48 {
  49         int i, k;
  50
  51         for (i = 0, k = 0; i < num_rects; i++) {
  52                 int x1 = max_t(int, clip.x1, rects[i].x1);
  53                 int y1 = max_t(int, clip.y1, rects[i].y1);
  54                 int x2 = min_t(int, clip.x2, rects[i].x2);
  55                 int y2 = min_t(int, clip.y2, rects[i].y2);
  56
  57                 if (x1 >= x2)
  58                         continue;
  59                 if (y1 >= y2)
  60                         continue;
  61
  62                 out_rects[k].left   = x1;
  63                 out_rects[k].top    = y1;
  64                 out_rects[k].right  = x2;
  65                 out_rects[k].bottom = y2;
  66                 k++;
  67         }
  68
  69         *out_num = k;
  70 }
  71
  72 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
  73 {
  74         if (du->cursor_surface)
  75                 vmw_surface_unreference(&du->cursor_surface);
  76         if (du->cursor_dmabuf)
  77                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
  78         drm_connector_unregister(&du->connector);
  79         drm_crtc_cleanup(&du->crtc);
  80         drm_encoder_cleanup(&du->encoder);
  81         drm_connector_cleanup(&du->connector);
  82 }
  83
  84 /*
  85  * Display Unit Cursor functions
  86  */
  87
  88 int vmw_cursor_update_image(struct vmw_private *dev_priv,
  89                             u32 *image, u32 width, u32 height,
  90                             u32 hotspotX, u32 hotspotY)
  91 {
  92         struct {
  93                 u32 cmd;
  94                 SVGAFifoCmdDefineAlphaCursor cursor;
  95         } *cmd;
  96         u32 image_size = width * height * 4;
  97         u32 cmd_size = sizeof(*cmd) + image_size;
  98
  99         if (!image)
 100                 return -EINVAL;
 101
 102         cmd = vmw_fifo_reserve(dev_priv, cmd_size);
 103         if (unlikely(cmd == NULL)) {
 104                 DRM_ERROR("Fifo reserve failed.\n");
 105                 return -ENOMEM;
 106         }
 107
 108         memset(cmd, 0, sizeof(*cmd));
 109
 110         memcpy(&cmd[1], image, image_size);
 111
 112         cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
 113         cmd->cursor.id = cpu_to_le32(0);
 114         cmd->cursor.width = cpu_to_le32(width);
 115         cmd->cursor.height = cpu_to_le32(height);
 116         cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
 117         cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
 118
 119         vmw_fifo_commit(dev_priv, cmd_size);
 120
 121         return 0;
 122 }
 123
 124 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
 125                              struct vmw_dma_buffer *dmabuf,
 126                              u32 width, u32 height,
 127                              u32 hotspotX, u32 hotspotY)
 128 {
 129         struct ttm_bo_kmap_obj map;
 130         unsigned long kmap_offset;
 131         unsigned long kmap_num;
 132         void *virtual;
 133         bool dummy;
 134         int ret;
 135
 136         kmap_offset = 0;
 137         kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
 138
 139         ret = ttm_bo_reserve(&dmabuf->base, true, false, false, NULL);
 140         if (unlikely(ret != 0)) {
 141                 DRM_ERROR("reserve failed\n");
 142                 return -EINVAL;
 143         }
 144
 145         ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
 146         if (unlikely(ret != 0))
 147                 goto err_unreserve;
 148
 149         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 150         ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
 151                                       hotspotX, hotspotY);
 152
 153         ttm_bo_kunmap(&map);
 154 err_unreserve:
 155         ttm_bo_unreserve(&dmabuf->base);
 156
 157         return ret;
 158 }
 159
 160
 161 void vmw_cursor_update_position(struct vmw_private *dev_priv,
 162                                 bool show, int x, int y)
 163 {
 164         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
 165         uint32_t count;
 166
 167         iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
 168         iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
 169         iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
 170         count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
 171         iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
 172 }
 173
 174 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
 175                            uint32_t handle, uint32_t width, uint32_t height)
 176 {
 177         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 178         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 179         struct vmw_surface *surface = NULL;
 180         struct vmw_dma_buffer *dmabuf = NULL;
 181         int ret;
 182
 183         /*
 184          * FIXME: Unclear whether there's any global state touched by the
 185          * cursor_set function, especially vmw_cursor_update_position looks
 186          * suspicious. For now take the easy route and reacquire all locks. We
 187          * can do this since the caller in the drm core doesn't check anything
 188          * which is protected by any looks.
 189          */
 190         drm_modeset_unlock_crtc(crtc);
 191         drm_modeset_lock_all(dev_priv->dev);
 192
 193         /* A lot of the code assumes this */
 194         if (handle && (width != 64 || height != 64)) {
 195                 ret = -EINVAL;
 196                 goto out;
 197         }
 198
 199         if (handle) {
 200                 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 201
 202                 ret = vmw_user_lookup_handle(dev_priv, tfile,
 203                                              handle, &surface, &dmabuf);
 204                 if (ret) {
 205                         DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
 206                         ret = -EINVAL;
 207                         goto out;
 208                 }
 209         }
 210
 211         /* need to do this before taking down old image */
 212         if (surface && !surface->snooper.image) {
 213                 DRM_ERROR("surface not suitable for cursor\n");
 214                 vmw_surface_unreference(&surface);
 215                 ret = -EINVAL;
 216                 goto out;
 217         }
 218
 219         /* takedown old cursor */
 220         if (du->cursor_surface) {
 221                 du->cursor_surface->snooper.crtc = NULL;
 222                 vmw_surface_unreference(&du->cursor_surface);
 223         }
 224         if (du->cursor_dmabuf)
 225                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
 226
 227         /* setup new image */
 228         if (surface) {
 229                 /* vmw_user_surface_lookup takes one reference */
 230                 du->cursor_surface = surface;
 231
 232                 du->cursor_surface->snooper.crtc = crtc;
 233                 du->cursor_age = du->cursor_surface->snooper.age;
 234                 vmw_cursor_update_image(dev_priv, surface->snooper.image,
 235                                         64, 64, du->hotspot_x, du->hotspot_y);
 236         } else if (dmabuf) {
 237                 /* vmw_user_surface_lookup takes one reference */
 238                 du->cursor_dmabuf = dmabuf;
 239
 240                 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
 241                                                du->hotspot_x, du->hotspot_y);
 242         } else {
 243                 vmw_cursor_update_position(dev_priv, false, 0, 0);
 244                 ret = 0;
 245                 goto out;
 246         }
 247
 248         vmw_cursor_update_position(dev_priv, true,
 249                                    du->cursor_x + du->hotspot_x,
 250                                    du->cursor_y + du->hotspot_y);
 251
 252         ret = 0;
 253 out:
 254         drm_modeset_unlock_all(dev_priv->dev);
 255         drm_modeset_lock_crtc(crtc, crtc->cursor);
 256
 257         return ret;
 258 }
 259
 260 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 261 {
 262         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 263         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 264         bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
 265
 266         du->cursor_x = x + crtc->x;
 267         du->cursor_y = y + crtc->y;
 268
 269         /*
 270          * FIXME: Unclear whether there's any global state touched by the
 271          * cursor_set function, especially vmw_cursor_update_position looks
 272          * suspicious. For now take the easy route and reacquire all locks. We
 273          * can do this since the caller in the drm core doesn't check anything
 274          * which is protected by any looks.
 275          */
 276         drm_modeset_unlock_crtc(crtc);
 277         drm_modeset_lock_all(dev_priv->dev);
 278
 279         vmw_cursor_update_position(dev_priv, shown,
 280                                    du->cursor_x + du->hotspot_x,
 281                                    du->cursor_y + du->hotspot_y);
 282
 283         drm_modeset_unlock_all(dev_priv->dev);
 284         drm_modeset_lock_crtc(crtc, crtc->cursor);
 285
 286         return 0;
 287 }
 288
 289 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 290                           struct ttm_object_file *tfile,
 291                           struct ttm_buffer_object *bo,
 292                           SVGA3dCmdHeader *header)
 293 {
 294         struct ttm_bo_kmap_obj map;
 295         unsigned long kmap_offset;
 296         unsigned long kmap_num;
 297         SVGA3dCopyBox *box;
 298         unsigned box_count;
 299         void *virtual;
 300         bool dummy;
 301         struct vmw_dma_cmd {
 302                 SVGA3dCmdHeader header;
 303                 SVGA3dCmdSurfaceDMA dma;
 304         } *cmd;
 305         int i, ret;
 306
 307         cmd = container_of(header, struct vmw_dma_cmd, header);
 308
 309         /* No snooper installed */
 310         if (!srf->snooper.image)
 311                 return;
 312
 313         if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
 314                 DRM_ERROR("face and mipmap for cursors should never != 0\n");
 315                 return;
 316         }
 317
 318         if (cmd->header.size < 64) {
 319                 DRM_ERROR("at least one full copy box must be given\n");
 320                 return;
 321         }
 322
 323         box = (SVGA3dCopyBox *)&cmd[1];
 324         box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
 325                         sizeof(SVGA3dCopyBox);
 326
 327         if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
 328             box->x != 0    || box->y != 0    || box->z != 0    ||
 329             box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
 330             box->d != 1    || box_count != 1) {
 331                 /* TODO handle none page aligned offsets */
 332                 /* TODO handle more dst & src != 0 */
 333                 /* TODO handle more then one copy */
 334                 DRM_ERROR("Cant snoop dma request for cursor!\n");
 335                 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
 336                           box->srcx, box->srcy, box->srcz,
 337                           box->x, box->y, box->z,
 338                           box->w, box->h, box->d, box_count,
 339                           cmd->dma.guest.ptr.offset);
 340                 return;
 341         }
 342
 343         kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
 344         kmap_num = (64*64*4) >> PAGE_SHIFT;
 345
 346         ret = ttm_bo_reserve(bo, true, false, false, NULL);
 347         if (unlikely(ret != 0)) {
 348                 DRM_ERROR("reserve failed\n");
 349                 return;
 350         }
 351
 352         ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
 353         if (unlikely(ret != 0))
 354                 goto err_unreserve;
 355
 356         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 357
 358         if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
 359                 memcpy(srf->snooper.image, virtual, 64*64*4);
 360         } else {
 361                 /* Image is unsigned pointer. */
 362                 for (i = 0; i < box->h; i++)
 363                         memcpy(srf->snooper.image + i * 64,
 364                                virtual + i * cmd->dma.guest.pitch,
 365                                box->w * 4);
 366         }
 367
 368         srf->snooper.age++;
 369
 370         /* we can't call this function from this function since execbuf has
 371          * reserved fifo space.
 372          *
 373          * if (srf->snooper.crtc)
 374          *      vmw_ldu_crtc_cursor_update_image(dev_priv,
 375          *                                       srf->snooper.image, 64, 64,
 376          *                                       du->hotspot_x, du->hotspot_y);
 377          */
 378
 379         ttm_bo_kunmap(&map);
 380 err_unreserve:
 381         ttm_bo_unreserve(bo);
 382 }
 383
 384 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
 385 {
 386         struct drm_device *dev = dev_priv->dev;
 387         struct vmw_display_unit *du;
 388         struct drm_crtc *crtc;
 389
 390         mutex_lock(&dev->mode_config.mutex);
 391
 392         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 393                 du = vmw_crtc_to_du(crtc);
 394                 if (!du->cursor_surface ||
 395                     du->cursor_age == du->cursor_surface->snooper.age)
 396                         continue;
 397
 398                 du->cursor_age = du->cursor_surface->snooper.age;
 399                 vmw_cursor_update_image(dev_priv,
 400                                         du->cursor_surface->snooper.image,
 401                                         64, 64, du->hotspot_x, du->hotspot_y);
 402         }
 403
 404         mutex_unlock(&dev->mode_config.mutex);
 405 }
 406
 407 /*
 408  * Generic framebuffer code
 409  */
 410
 411 /*
 412  * Surface framebuffer code
 413  */
 414
 415 #define vmw_framebuffer_to_vfbs(x) \
 416         container_of(x, struct vmw_framebuffer_surface, base.base)
 417
 418 struct vmw_framebuffer_surface {
 419         struct vmw_framebuffer base;
 420         struct vmw_surface *surface;
 421         struct vmw_dma_buffer *buffer;
 422         struct list_head head;
 423         struct drm_master *master;
 424 };
 425
 426 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
 427 {
 428         struct vmw_framebuffer_surface *vfbs =
 429                 vmw_framebuffer_to_vfbs(framebuffer);
 430         struct vmw_master *vmaster = vmw_master(vfbs->master);
 431
 432
 433         mutex_lock(&vmaster->fb_surf_mutex);
 434         list_del(&vfbs->head);
 435         mutex_unlock(&vmaster->fb_surf_mutex);
 436
 437         drm_master_put(&vfbs->master);
 438         drm_framebuffer_cleanup(framebuffer);
 439         vmw_surface_unreference(&vfbs->surface);
 440         ttm_base_object_unref(&vfbs->base.user_obj);
 441
 442         kfree(vfbs);
 443 }
 444
 445 static int do_surface_dirty_sou(struct vmw_private *dev_priv,
 446                                 struct drm_file *file_priv,
 447                                 struct vmw_framebuffer *framebuffer,
 448                                 unsigned flags, unsigned color,
 449                                 struct drm_clip_rect *clips,
 450                                 unsigned num_clips, int inc,
 451                                 struct vmw_fence_obj **out_fence)
 452 {
 453         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 454         struct drm_clip_rect *clips_ptr;
 455         struct drm_clip_rect *tmp;
 456         struct drm_crtc *crtc;
 457         size_t fifo_size;
 458         int i, num_units;
 459         int ret = 0; /* silence warning */
 460         int left, right, top, bottom;
 461
 462         struct {
 463                 SVGA3dCmdHeader header;
 464                 SVGA3dCmdBlitSurfaceToScreen body;
 465         } *cmd;
 466         SVGASignedRect *blits;
 467
 468         num_units = 0;
 469         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
 470                             head) {
 471                 if (crtc->primary->fb != &framebuffer->base)
 472                         continue;
 473                 units[num_units++] = vmw_crtc_to_du(crtc);
 474         }
 475
 476         BUG_ON(!clips || !num_clips);
 477
 478         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
 479         if (unlikely(tmp == NULL)) {
 480                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
 481                 return -ENOMEM;
 482         }
 483
 484         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
 485         cmd = kzalloc(fifo_size, GFP_KERNEL);
 486         if (unlikely(cmd == NULL)) {
 487                 DRM_ERROR("Temporary fifo memory alloc failed.\n");
 488                 ret = -ENOMEM;
 489                 goto out_free_tmp;
 490         }
 491
 492         /* setup blits pointer */
 493         blits = (SVGASignedRect *)&cmd[1];
 494
 495         /* initial clip region */
 496         left = clips->x1;
 497         right = clips->x2;
 498         top = clips->y1;
 499         bottom = clips->y2;
 500
 501         /* skip the first clip rect */
 502         for (i = 1, clips_ptr = clips + inc;
 503              i < num_clips; i++, clips_ptr += inc) {
 504                 left = min_t(int, left, (int)clips_ptr->x1);
 505                 right = max_t(int, right, (int)clips_ptr->x2);
 506                 top = min_t(int, top, (int)clips_ptr->y1);
 507                 bottom = max_t(int, bottom, (int)clips_ptr->y2);
 508         }
 509
 510         /* only need to do this once */
 511         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
 512         cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 513
 514         cmd->body.srcRect.left = left;
 515         cmd->body.srcRect.right = right;
 516         cmd->body.srcRect.top = top;
 517         cmd->body.srcRect.bottom = bottom;
 518
 519         clips_ptr = clips;
 520         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
 521                 tmp[i].x1 = clips_ptr->x1 - left;
 522                 tmp[i].x2 = clips_ptr->x2 - left;
 523                 tmp[i].y1 = clips_ptr->y1 - top;
 524                 tmp[i].y2 = clips_ptr->y2 - top;
 525         }
 526
 527         /* do per unit writing, reuse fifo for each */
 528         for (i = 0; i < num_units; i++) {
 529                 struct vmw_display_unit *unit = units[i];
 530                 struct vmw_clip_rect clip;
 531                 int num;
 532
 533                 clip.x1 = left - unit->crtc.x;
 534                 clip.y1 = top - unit->crtc.y;
 535                 clip.x2 = right - unit->crtc.x;
 536                 clip.y2 = bottom - unit->crtc.y;
 537
 538                 /* skip any crtcs that misses the clip region */
 539                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
 540                     clip.y1 >= unit->crtc.mode.vdisplay ||
 541                     clip.x2 <= 0 || clip.y2 <= 0)
 542                         continue;
 543
 544                 /*
 545                  * In order for the clip rects to be correctly scaled
 546                  * the src and dest rects needs to be the same size.
 547                  */
 548                 cmd->body.destRect.left = clip.x1;
 549                 cmd->body.destRect.right = clip.x2;
 550                 cmd->body.destRect.top = clip.y1;
 551                 cmd->body.destRect.bottom = clip.y2;
 552
 553                 /* create a clip rect of the crtc in dest coords */
 554                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
 555                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
 556                 clip.x1 = 0 - clip.x1;
 557                 clip.y1 = 0 - clip.y1;
 558
 559                 /* need to reset sid as it is changed by execbuf */
 560                 cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
 561                 cmd->body.destScreenId = unit->unit;
 562
 563                 /* clip and write blits to cmd stream */
 564                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
 565
 566                 /* if no cliprects hit skip this */
 567                 if (num == 0)
 568                         continue;
 569
 570                 /* only return the last fence */
 571                 if (out_fence && *out_fence)
 572                         vmw_fence_obj_unreference(out_fence);
 573
 574                 /* recalculate package length */
 575                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
 576                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 577                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 578                                           fifo_size, 0, NULL, out_fence);
 579
 580                 if (unlikely(ret != 0))
 581                         break;
 582         }
 583
 584
 585         kfree(cmd);
 586 out_free_tmp:
 587         kfree(tmp);
 588
 589         return ret;
 590 }
 591
 592 static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
 593                                   struct drm_file *file_priv,
 594                                   unsigned flags, unsigned color,
 595                                   struct drm_clip_rect *clips,
 596                                   unsigned num_clips)
 597 {
 598         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 599         struct vmw_framebuffer_surface *vfbs =
 600                 vmw_framebuffer_to_vfbs(framebuffer);
 601         struct drm_clip_rect norect;
 602         int ret, inc = 1;
 603
 604         if (unlikely(vfbs->master != file_priv->master))
 605                 return -EINVAL;
 606
 607         /* Require ScreenObject support for 3D */
 608         if (!dev_priv->sou_priv)
 609                 return -EINVAL;
 610
 611         drm_modeset_lock_all(dev_priv->dev);
 612
 613         ret = ttm_read_lock(&dev_priv->reservation_sem, true);
 614         if (unlikely(ret != 0)) {
 615                 drm_modeset_unlock_all(dev_priv->dev);
 616                 return ret;
 617         }
 618
 619         if (!num_clips) {
 620                 num_clips = 1;
 621                 clips = &norect;
 622                 norect.x1 = norect.y1 = 0;
 623                 norect.x2 = framebuffer->width;
 624                 norect.y2 = framebuffer->height;
 625         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 626                 num_clips /= 2;
 627                 inc = 2; /* skip source rects */
 628         }
 629
 630         ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
 631                                    flags, color,
 632                                    clips, num_clips, inc, NULL);
 633
 634         vmw_fifo_flush(dev_priv, false);
 635         ttm_read_unlock(&dev_priv->reservation_sem);
 636
 637         drm_modeset_unlock_all(dev_priv->dev);
 638
 639         return 0;
 640 }
 641
 642 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
 643         .destroy = vmw_framebuffer_surface_destroy,
 644         .dirty = vmw_framebuffer_surface_dirty,
 645 };
 646
 647 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
 648                                            struct drm_file *file_priv,
 649                                            struct vmw_surface *surface,
 650                                            struct vmw_framebuffer **out,
 651                                            const struct drm_mode_fb_cmd
 652                                            *mode_cmd)
 653
 654 {
 655         struct drm_device *dev = dev_priv->dev;
 656         struct vmw_framebuffer_surface *vfbs;
 657         enum SVGA3dSurfaceFormat format;
 658         struct vmw_master *vmaster = vmw_master(file_priv->master);
 659         int ret;
 660
 661         /* 3D is only supported on HWv8 hosts which supports screen objects */
 662         if (!dev_priv->sou_priv)
 663                 return -ENOSYS;
 664
 665         /*
 666          * Sanity checks.
 667          */
 668
 669         /* Surface must be marked as a scanout. */
 670         if (unlikely(!surface->scanout))
 671                 return -EINVAL;
 672
 673         if (unlikely(surface->mip_levels[0] != 1 ||
 674                      surface->num_sizes != 1 ||
 675                      surface->base_size.width < mode_cmd->width ||
 676                      surface->base_size.height < mode_cmd->height ||
 677                      surface->base_size.depth != 1)) {
 678                 DRM_ERROR("Incompatible surface dimensions "
 679                           "for requested mode.\n");
 680                 return -EINVAL;
 681         }
 682
 683         switch (mode_cmd->depth) {
 684         case 32:
 685                 format = SVGA3D_A8R8G8B8;
 686                 break;
 687         case 24:
 688                 format = SVGA3D_X8R8G8B8;
 689                 break;
 690         case 16:
 691                 format = SVGA3D_R5G6B5;
 692                 break;
 693         case 15:
 694                 format = SVGA3D_A1R5G5B5;
 695                 break;
 696         case 8:
 697                 format = SVGA3D_LUMINANCE8;
 698                 break;
 699         default:
 700                 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 701                 return -EINVAL;
 702         }
 703
 704         if (unlikely(format != surface->format)) {
 705                 DRM_ERROR("Invalid surface format for requested mode.\n");
 706                 return -EINVAL;
 707         }
 708
 709         vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
 710         if (!vfbs) {
 711                 ret = -ENOMEM;
 712                 goto out_err1;
 713         }
 714
 715         if (!vmw_surface_reference(surface)) {
 716                 DRM_ERROR("failed to reference surface %p\n", surface);
 717                 ret = -EINVAL;
 718                 goto out_err2;
 719         }
 720
 721         /* XXX get the first 3 from the surface info */
 722         vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
 723         vfbs->base.base.pitches[0] = mode_cmd->pitch;
 724         vfbs->base.base.depth = mode_cmd->depth;
 725         vfbs->base.base.width = mode_cmd->width;
 726         vfbs->base.base.height = mode_cmd->height;
 727         vfbs->surface = surface;
 728         vfbs->base.user_handle = mode_cmd->handle;
 729         vfbs->master = drm_master_get(file_priv->master);
 730
 731         mutex_lock(&vmaster->fb_surf_mutex);
 732         list_add_tail(&vfbs->head, &vmaster->fb_surf);
 733         mutex_unlock(&vmaster->fb_surf_mutex);
 734
 735         *out = &vfbs->base;
 736
 737         ret = drm_framebuffer_init(dev, &vfbs->base.base,
 738                                    &vmw_framebuffer_surface_funcs);
 739         if (ret)
 740                 goto out_err3;
 741
 742         return 0;
 743
 744 out_err3:
 745         vmw_surface_unreference(&surface);
 746 out_err2:
 747         kfree(vfbs);
 748 out_err1:
 749         return ret;
 750 }
 751
 752 /*
 753  * Dmabuf framebuffer code
 754  */
 755
 756 #define vmw_framebuffer_to_vfbd(x) \
 757         container_of(x, struct vmw_framebuffer_dmabuf, base.base)
 758
 759 struct vmw_framebuffer_dmabuf {
 760         struct vmw_framebuffer base;
 761         struct vmw_dma_buffer *buffer;
 762 };
 763
 764 static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
 765 {
 766         struct vmw_framebuffer_dmabuf *vfbd =
 767                 vmw_framebuffer_to_vfbd(framebuffer);
 768
 769         drm_framebuffer_cleanup(framebuffer);
 770         vmw_dmabuf_unreference(&vfbd->buffer);
 771         ttm_base_object_unref(&vfbd->base.user_obj);
 772
 773         kfree(vfbd);
 774 }
 775
 776 static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
 777                                struct vmw_framebuffer *framebuffer,
 778                                unsigned flags, unsigned color,
 779                                struct drm_clip_rect *clips,
 780                                unsigned num_clips, int increment)
 781 {
 782         size_t fifo_size;
 783         int i;
 784
 785         struct {
 786                 uint32_t header;
 787                 SVGAFifoCmdUpdate body;
 788         } *cmd;
 789
 790         fifo_size = sizeof(*cmd) * num_clips;
 791         cmd = vmw_fifo_reserve(dev_priv, fifo_size);
 792         if (unlikely(cmd == NULL)) {
 793                 DRM_ERROR("Fifo reserve failed.\n");
 794                 return -ENOMEM;
 795         }
 796
 797         memset(cmd, 0, fifo_size);
 798         for (i = 0; i < num_clips; i++, clips += increment) {
 799                 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
 800                 cmd[i].body.x = cpu_to_le32(clips->x1);
 801                 cmd[i].body.y = cpu_to_le32(clips->y1);
 802                 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
 803                 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
 804         }
 805
 806         vmw_fifo_commit(dev_priv, fifo_size);
 807         return 0;
 808 }
 809
 810 static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
 811                                   struct vmw_private *dev_priv,
 812                                   struct vmw_framebuffer *framebuffer)
 813 {
 814         int depth = framebuffer->base.depth;
 815         size_t fifo_size;
 816         int ret;
 817
 818         struct {
 819                 uint32_t header;
 820                 SVGAFifoCmdDefineGMRFB body;
 821         } *cmd;
 822
 823         /* Emulate RGBA support, contrary to svga_reg.h this is not
 824          * supported by hosts. This is only a problem if we are reading
 825          * this value later and expecting what we uploaded back.
 826          */
 827         if (depth == 32)
 828                 depth = 24;
 829
 830         fifo_size = sizeof(*cmd);
 831         cmd = kmalloc(fifo_size, GFP_KERNEL);
 832         if (unlikely(cmd == NULL)) {
 833                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 834                 return -ENOMEM;
 835         }
 836
 837         memset(cmd, 0, fifo_size);
 838         cmd->header = SVGA_CMD_DEFINE_GMRFB;
 839         cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
 840         cmd->body.format.colorDepth = depth;
 841         cmd->body.format.reserved = 0;
 842         cmd->body.bytesPerLine = framebuffer->base.pitches[0];
 843         cmd->body.ptr.gmrId = framebuffer->user_handle;
 844         cmd->body.ptr.offset = 0;
 845
 846         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 847                                   fifo_size, 0, NULL, NULL);
 848
 849         kfree(cmd);
 850
 851         return ret;
 852 }
 853
 854 static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
 855                                struct vmw_private *dev_priv,
 856                                struct vmw_framebuffer *framebuffer,
 857                                unsigned flags, unsigned color,
 858                                struct drm_clip_rect *clips,
 859                                unsigned num_clips, int increment,
 860                                struct vmw_fence_obj **out_fence)
 861 {
 862         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 863         struct drm_clip_rect *clips_ptr;
 864         int i, k, num_units, ret;
 865         struct drm_crtc *crtc;
 866         size_t fifo_size;
 867
 868         struct {
 869                 uint32_t header;
 870                 SVGAFifoCmdBlitGMRFBToScreen body;
 871         } *blits;
 872
 873         ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
 874         if (unlikely(ret != 0))
 875                 return ret; /* define_gmrfb prints warnings */
 876
 877         fifo_size = sizeof(*blits) * num_clips;
 878         blits = kmalloc(fifo_size, GFP_KERNEL);
 879         if (unlikely(blits == NULL)) {
 880                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 881                 return -ENOMEM;
 882         }
 883
 884         num_units = 0;
 885         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
 886                 if (crtc->primary->fb != &framebuffer->base)
 887                         continue;
 888                 units[num_units++] = vmw_crtc_to_du(crtc);
 889         }
 890
 891         for (k = 0; k < num_units; k++) {
 892                 struct vmw_display_unit *unit = units[k];
 893                 int hit_num = 0;
 894
 895                 clips_ptr = clips;
 896                 for (i = 0; i < num_clips; i++, clips_ptr += increment) {
 897                         int clip_x1 = clips_ptr->x1 - unit->crtc.x;
 898                         int clip_y1 = clips_ptr->y1 - unit->crtc.y;
 899                         int clip_x2 = clips_ptr->x2 - unit->crtc.x;
 900                         int clip_y2 = clips_ptr->y2 - unit->crtc.y;
 901                         int move_x, move_y;
 902
 903                         /* skip any crtcs that misses the clip region */
 904                         if (clip_x1 >= unit->crtc.mode.hdisplay ||
 905                             clip_y1 >= unit->crtc.mode.vdisplay ||
 906                             clip_x2 <= 0 || clip_y2 <= 0)
 907                                 continue;
 908
 909                         /* clip size to crtc size */
 910                         clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
 911                         clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
 912
 913                         /* translate both src and dest to bring clip into screen */
 914                         move_x = min_t(int, clip_x1, 0);
 915                         move_y = min_t(int, clip_y1, 0);
 916
 917                         /* actual translate done here */
 918                         blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
 919                         blits[hit_num].body.destScreenId = unit->unit;
 920                         blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
 921                         blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
 922                         blits[hit_num].body.destRect.left = clip_x1 - move_x;
 923                         blits[hit_num].body.destRect.top = clip_y1 - move_y;
 924                         blits[hit_num].body.destRect.right = clip_x2;
 925                         blits[hit_num].body.destRect.bottom = clip_y2;
 926                         hit_num++;
 927                 }
 928
 929                 /* no clips hit the crtc */
 930                 if (hit_num == 0)
 931                         continue;
 932
 933                 /* only return the last fence */
 934                 if (out_fence && *out_fence)
 935                         vmw_fence_obj_unreference(out_fence);
 936
 937                 fifo_size = sizeof(*blits) * hit_num;
 938                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
 939                                           fifo_size, 0, NULL, out_fence);
 940
 941                 if (unlikely(ret != 0))
 942                         break;
 943         }
 944
 945         kfree(blits);
 946
 947         return ret;
 948 }
 949
 950 static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
 951                                  struct drm_file *file_priv,
 952                                  unsigned flags, unsigned color,
 953                                  struct drm_clip_rect *clips,
 954                                  unsigned num_clips)
 955 {
 956         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 957         struct vmw_framebuffer_dmabuf *vfbd =
 958                 vmw_framebuffer_to_vfbd(framebuffer);
 959         struct drm_clip_rect norect;
 960         int ret, increment = 1;
 961
 962         drm_modeset_lock_all(dev_priv->dev);
 963
 964         ret = ttm_read_lock(&dev_priv->reservation_sem, true);
 965         if (unlikely(ret != 0)) {
 966                 drm_modeset_unlock_all(dev_priv->dev);
 967                 return ret;
 968         }
 969
 970         if (!num_clips) {
 971                 num_clips = 1;
 972                 clips = &norect;
 973                 norect.x1 = norect.y1 = 0;
 974                 norect.x2 = framebuffer->width;
 975                 norect.y2 = framebuffer->height;
 976         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 977                 num_clips /= 2;
 978                 increment = 2;
 979         }
 980
 981         if (dev_priv->ldu_priv) {
 982                 ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
 983                                           flags, color,
 984                                           clips, num_clips, increment);
 985         } else {
 986                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
 987                                           flags, color,
 988                                           clips, num_clips, increment, NULL);
 989         }
 990
 991         vmw_fifo_flush(dev_priv, false);
 992         ttm_read_unlock(&dev_priv->reservation_sem);
 993
 994         drm_modeset_unlock_all(dev_priv->dev);
 995
 996         return ret;
 997 }
 998
 999 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
1000         .destroy = vmw_framebuffer_dmabuf_destroy,
1001         .dirty = vmw_framebuffer_dmabuf_dirty,
1002 };
1003
1004 /**
1005  * Pin the dmabuffer to the start of vram.
1006  */
1007 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
1008 {
1009         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1010         struct vmw_framebuffer_dmabuf *vfbd =
1011                 vmw_framebuffer_to_vfbd(&vfb->base);
1012         int ret;
1013
1014         /* This code should not be used with screen objects */
1015         BUG_ON(dev_priv->sou_priv);
1016
1017         vmw_overlay_pause_all(dev_priv);
1018
1019         ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
1020
1021         vmw_overlay_resume_all(dev_priv);
1022
1023         WARN_ON(ret != 0);
1024
1025         return 0;
1026 }
1027
1028 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
1029 {
1030         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1031         struct vmw_framebuffer_dmabuf *vfbd =
1032                 vmw_framebuffer_to_vfbd(&vfb->base);
1033
1034         if (!vfbd->buffer) {
1035                 WARN_ON(!vfbd->buffer);
1036                 return 0;
1037         }
1038
1039         return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
1040 }
1041
1042 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
1043                                           struct vmw_dma_buffer *dmabuf,
1044                                           struct vmw_framebuffer **out,
1045                                           const struct drm_mode_fb_cmd
1046                                           *mode_cmd)
1047
1048 {
1049         struct drm_device *dev = dev_priv->dev;
1050         struct vmw_framebuffer_dmabuf *vfbd;
1051         unsigned int requested_size;
1052         int ret;
1053
1054         requested_size = mode_cmd->height * mode_cmd->pitch;
1055         if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1056                 DRM_ERROR("Screen buffer object size is too small "
1057                           "for requested mode.\n");
1058                 return -EINVAL;
1059         }
1060
1061         /* Limited framebuffer color depth support for screen objects */
1062         if (dev_priv->sou_priv) {
1063                 switch (mode_cmd->depth) {
1064                 case 32:
1065                 case 24:
1066                         /* Only support 32 bpp for 32 and 24 depth fbs */
1067                         if (mode_cmd->bpp == 32)
1068                                 break;
1069
1070                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1071                                   mode_cmd->depth, mode_cmd->bpp);
1072                         return -EINVAL;
1073                 case 16:
1074                 case 15:
1075                         /* Only support 16 bpp for 16 and 15 depth fbs */
1076                         if (mode_cmd->bpp == 16)
1077                                 break;
1078
1079                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
1080                                   mode_cmd->depth, mode_cmd->bpp);
1081                         return -EINVAL;
1082                 default:
1083                         DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
1084                         return -EINVAL;
1085                 }
1086         }
1087
1088         vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1089         if (!vfbd) {
1090                 ret = -ENOMEM;
1091                 goto out_err1;
1092         }
1093
1094         if (!vmw_dmabuf_reference(dmabuf)) {
1095                 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
1096                 ret = -EINVAL;
1097                 goto out_err2;
1098         }
1099
1100         vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
1101         vfbd->base.base.pitches[0] = mode_cmd->pitch;
1102         vfbd->base.base.depth = mode_cmd->depth;
1103         vfbd->base.base.width = mode_cmd->width;
1104         vfbd->base.base.height = mode_cmd->height;
1105         if (!dev_priv->sou_priv) {
1106                 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
1107                 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
1108         }
1109         vfbd->base.dmabuf = true;
1110         vfbd->buffer = dmabuf;
1111         vfbd->base.user_handle = mode_cmd->handle;
1112         *out = &vfbd->base;
1113
1114         ret = drm_framebuffer_init(dev, &vfbd->base.base,
1115                                    &vmw_framebuffer_dmabuf_funcs);
1116         if (ret)
1117                 goto out_err3;
1118
1119         return 0;
1120
1121 out_err3:
1122         vmw_dmabuf_unreference(&dmabuf);
1123 out_err2:
1124         kfree(vfbd);
1125 out_err1:
1126         return ret;
1127 }
1128
1129 /*
1130  * Generic Kernel modesetting functions
1131  */
1132
1133 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1134                                                  struct drm_file *file_priv,
1135                                                  struct drm_mode_fb_cmd2 *mode_cmd2)
1136 {
1137         struct vmw_private *dev_priv = vmw_priv(dev);
1138         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1139         struct vmw_framebuffer *vfb = NULL;
1140         struct vmw_surface *surface = NULL;
1141         struct vmw_dma_buffer *bo = NULL;
1142         struct ttm_base_object *user_obj;
1143         struct drm_mode_fb_cmd mode_cmd;
1144         int ret;
1145
1146         mode_cmd.width = mode_cmd2->width;
1147         mode_cmd.height = mode_cmd2->height;
1148         mode_cmd.pitch = mode_cmd2->pitches[0];
1149         mode_cmd.handle = mode_cmd2->handles[0];
1150         drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
1151                                     &mode_cmd.bpp);
1152
1153         /**
1154          * This code should be conditioned on Screen Objects not being used.
1155          * If screen objects are used, we can allocate a GMR to hold the
1156          * requested framebuffer.
1157          */
1158
1159         if (!vmw_kms_validate_mode_vram(dev_priv,
1160                                         mode_cmd.pitch,
1161                                         mode_cmd.height)) {
1162                 DRM_ERROR("VRAM size is too small for requested mode.\n");
1163                 return ERR_PTR(-ENOMEM);
1164         }
1165
1166         /*
1167          * Take a reference on the user object of the resource
1168          * backing the kms fb. This ensures that user-space handle
1169          * lookups on that resource will always work as long as
1170          * it's registered with a kms framebuffer. This is important,
1171          * since vmw_execbuf_process identifies resources in the
1172          * command stream using user-space handles.
1173          */
1174
1175         user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
1176         if (unlikely(user_obj == NULL)) {
1177                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1178                 return ERR_PTR(-ENOENT);
1179         }
1180
1181         /**
1182          * End conditioned code.
1183          */
1184
1185         /* returns either a dmabuf or surface */
1186         ret = vmw_user_lookup_handle(dev_priv, tfile,
1187                                      mode_cmd.handle,
1188                                      &surface, &bo);
1189         if (ret)
1190                 goto err_out;
1191
1192         /* Create the new framebuffer depending one what we got back */
1193         if (bo)
1194                 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
1195                                                      &mode_cmd);
1196         else if (surface)
1197                 ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
1198                                                       surface, &vfb, &mode_cmd);
1199         else
1200                 BUG();
1201
1202 err_out:
1203         /* vmw_user_lookup_handle takes one ref so does new_fb */
1204         if (bo)
1205                 vmw_dmabuf_unreference(&bo);
1206         if (surface)
1207                 vmw_surface_unreference(&surface);
1208
1209         if (ret) {
1210                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1211                 ttm_base_object_unref(&user_obj);
1212                 return ERR_PTR(ret);
1213         } else
1214                 vfb->user_obj = user_obj;
1215
1216         return &vfb->base;
1217 }
1218
1219 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1220         .fb_create = vmw_kms_fb_create,
1221 };
1222
1223 int vmw_kms_present(struct vmw_private *dev_priv,
1224                     struct drm_file *file_priv,
1225                     struct vmw_framebuffer *vfb,
1226                     struct vmw_surface *surface,
1227                     uint32_t sid,
1228                     int32_t destX, int32_t destY,
1229                     struct drm_vmw_rect *clips,
1230                     uint32_t num_clips)
1231 {
1232         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1233         struct drm_clip_rect *tmp;
1234         struct drm_crtc *crtc;
1235         size_t fifo_size;
1236         int i, k, num_units;
1237         int ret = 0; /* silence warning */
1238         int left, right, top, bottom;
1239
1240         struct {
1241                 SVGA3dCmdHeader header;
1242                 SVGA3dCmdBlitSurfaceToScreen body;
1243         } *cmd;
1244         SVGASignedRect *blits;
1245
1246         num_units = 0;
1247         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1248                 if (crtc->primary->fb != &vfb->base)
1249                         continue;
1250                 units[num_units++] = vmw_crtc_to_du(crtc);
1251         }
1252
1253         BUG_ON(surface == NULL);
1254         BUG_ON(!clips || !num_clips);
1255
1256         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1257         if (unlikely(tmp == NULL)) {
1258                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1259                 return -ENOMEM;
1260         }
1261
1262         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1263         cmd = kmalloc(fifo_size, GFP_KERNEL);
1264         if (unlikely(cmd == NULL)) {
1265                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1266                 ret = -ENOMEM;
1267                 goto out_free_tmp;
1268         }
1269
1270         left = clips->x;
1271         right = clips->x + clips->w;
1272         top = clips->y;
1273         bottom = clips->y + clips->h;
1274
1275         for (i = 1; i < num_clips; i++) {
1276                 left = min_t(int, left, (int)clips[i].x);
1277                 right = max_t(int, right, (int)clips[i].x + clips[i].w);
1278                 top = min_t(int, top, (int)clips[i].y);
1279                 bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1280         }
1281
1282         /* only need to do this once */
1283         memset(cmd, 0, fifo_size);
1284         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1285
1286         blits = (SVGASignedRect *)&cmd[1];
1287
1288         cmd->body.srcRect.left = left;
1289         cmd->body.srcRect.right = right;
1290         cmd->body.srcRect.top = top;
1291         cmd->body.srcRect.bottom = bottom;
1292
1293         for (i = 0; i < num_clips; i++) {
1294                 tmp[i].x1 = clips[i].x - left;
1295                 tmp[i].x2 = clips[i].x + clips[i].w - left;
1296                 tmp[i].y1 = clips[i].y - top;
1297                 tmp[i].y2 = clips[i].y + clips[i].h - top;
1298         }
1299
1300         for (k = 0; k < num_units; k++) {
1301                 struct vmw_display_unit *unit = units[k];
1302                 struct vmw_clip_rect clip;
1303                 int num;
1304
1305                 clip.x1 = left + destX - unit->crtc.x;
1306                 clip.y1 = top + destY - unit->crtc.y;
1307                 clip.x2 = right + destX - unit->crtc.x;
1308                 clip.y2 = bottom + destY - unit->crtc.y;
1309
1310                 /* skip any crtcs that misses the clip region */
1311                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
1312                     clip.y1 >= unit->crtc.mode.vdisplay ||
1313                     clip.x2 <= 0 || clip.y2 <= 0)
1314                         continue;
1315
1316                 /*
1317                  * In order for the clip rects to be correctly scaled
1318                  * the src and dest rects needs to be the same size.
1319                  */
1320                 cmd->body.destRect.left = clip.x1;
1321                 cmd->body.destRect.right = clip.x2;
1322                 cmd->body.destRect.top = clip.y1;
1323                 cmd->body.destRect.bottom = clip.y2;
1324
1325                 /* create a clip rect of the crtc in dest coords */
1326                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1327                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1328                 clip.x1 = 0 - clip.x1;
1329                 clip.y1 = 0 - clip.y1;
1330
1331                 /* need to reset sid as it is changed by execbuf */
1332                 cmd->body.srcImage.sid = sid;
1333                 cmd->body.destScreenId = unit->unit;
1334
1335                 /* clip and write blits to cmd stream */
1336                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1337
1338                 /* if no cliprects hit skip this */
1339                 if (num == 0)
1340                         continue;
1341
1342                 /* recalculate package length */
1343                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1344                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1345                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1346                                           fifo_size, 0, NULL, NULL);
1347
1348                 if (unlikely(ret != 0))
1349                         break;
1350         }
1351
1352         vmw_fifo_flush(dev_priv, false);
1353
1354         kfree(cmd);
1355 out_free_tmp:
1356         kfree(tmp);
1357
1358         return ret;
1359 }
1360
1361 int vmw_kms_readback(struct vmw_private *dev_priv,
1362                      struct drm_file *file_priv,
1363                      struct vmw_framebuffer *vfb,
1364                      struct drm_vmw_fence_rep __user *user_fence_rep,
1365                      struct drm_vmw_rect *clips,
1366                      uint32_t num_clips)
1367 {
1368         struct vmw_framebuffer_dmabuf *vfbd =
1369                 vmw_framebuffer_to_vfbd(&vfb->base);
1370         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1371         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1372         struct drm_crtc *crtc;
1373         size_t fifo_size;
1374         int i, k, ret, num_units, blits_pos;
1375
1376         struct {
1377                 uint32_t header;
1378                 SVGAFifoCmdDefineGMRFB body;
1379         } *cmd;
1380         struct {
1381                 uint32_t header;
1382                 SVGAFifoCmdBlitScreenToGMRFB body;
1383         } *blits;
1384
1385         num_units = 0;
1386         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1387                 if (crtc->primary->fb != &vfb->base)
1388                         continue;
1389                 units[num_units++] = vmw_crtc_to_du(crtc);
1390         }
1391
1392         BUG_ON(dmabuf == NULL);
1393         BUG_ON(!clips || !num_clips);
1394
1395         /* take a safe guess at fifo size */
1396         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1397         cmd = kmalloc(fifo_size, GFP_KERNEL);
1398         if (unlikely(cmd == NULL)) {
1399                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1400                 return -ENOMEM;
1401         }
1402
1403         memset(cmd, 0, fifo_size);
1404         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1405         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1406         cmd->body.format.colorDepth = vfb->base.depth;
1407         cmd->body.format.reserved = 0;
1408         cmd->body.bytesPerLine = vfb->base.pitches[0];
1409         cmd->body.ptr.gmrId = vfb->user_handle;
1410         cmd->body.ptr.offset = 0;
1411
1412         blits = (void *)&cmd[1];
1413         blits_pos = 0;
1414         for (i = 0; i < num_units; i++) {
1415                 struct drm_vmw_rect *c = clips;
1416                 for (k = 0; k < num_clips; k++, c++) {
1417                         /* transform clip coords to crtc origin based coords */
1418                         int clip_x1 = c->x - units[i]->crtc.x;
1419                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1420                         int clip_y1 = c->y - units[i]->crtc.y;
1421                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1422                         int dest_x = c->x;
1423                         int dest_y = c->y;
1424
1425                         /* compensate for clipping, we negate
1426                          * a negative number and add that.
1427                          */
1428                         if (clip_x1 < 0)
1429                                 dest_x += -clip_x1;
1430                         if (clip_y1 < 0)
1431                                 dest_y += -clip_y1;
1432
1433                         /* clip */
1434                         clip_x1 = max(clip_x1, 0);
1435                         clip_y1 = max(clip_y1, 0);
1436                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1437                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1438
1439                         /* and cull any rects that misses the crtc */
1440                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1441                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1442                             clip_x2 <= 0 || clip_y2 <= 0)
1443                                 continue;
1444
1445                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1446                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1447                         blits[blits_pos].body.destOrigin.x = dest_x;
1448                         blits[blits_pos].body.destOrigin.y = dest_y;
1449
1450                         blits[blits_pos].body.srcRect.left = clip_x1;
1451                         blits[blits_pos].body.srcRect.top = clip_y1;
1452                         blits[blits_pos].body.srcRect.right = clip_x2;
1453                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1454                         blits_pos++;
1455                 }
1456         }
1457         /* reset size here and use calculated exact size from loops */
1458         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1459
1460         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1461                                   0, user_fence_rep, NULL);
1462
1463         kfree(cmd);
1464
1465         return ret;
1466 }
1467
1468 int vmw_kms_init(struct vmw_private *dev_priv)
1469 {
1470         struct drm_device *dev = dev_priv->dev;
1471         int ret;
1472
1473         drm_mode_config_init(dev);
1474         dev->mode_config.funcs = &vmw_kms_funcs;
1475         dev->mode_config.min_width = 1;
1476         dev->mode_config.min_height = 1;
1477         /* assumed largest fb size */
1478         dev->mode_config.max_width = 8192;
1479         dev->mode_config.max_height = 8192;
1480
1481         ret = vmw_kms_init_screen_object_display(dev_priv);
1482         if (ret) /* Fallback */
1483                 (void)vmw_kms_init_legacy_display_system(dev_priv);
1484
1485         return 0;
1486 }
1487
1488 int vmw_kms_close(struct vmw_private *dev_priv)
1489 {
1490         /*
1491          * Docs says we should take the lock before calling this function
1492          * but since it destroys encoders and our destructor calls
1493          * drm_encoder_cleanup which takes the lock we deadlock.
1494          */
1495         drm_mode_config_cleanup(dev_priv->dev);
1496         if (dev_priv->sou_priv)
1497                 vmw_kms_close_screen_object_display(dev_priv);
1498         else
1499                 vmw_kms_close_legacy_display_system(dev_priv);
1500         return 0;
1501 }
1502
1503 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1504                                 struct drm_file *file_priv)
1505 {
1506         struct drm_vmw_cursor_bypass_arg *arg = data;
1507         struct vmw_display_unit *du;
1508         struct drm_crtc *crtc;
1509         int ret = 0;
1510
1511
1512         mutex_lock(&dev->mode_config.mutex);
1513         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1514
1515                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1516                         du = vmw_crtc_to_du(crtc);
1517                         du->hotspot_x = arg->xhot;
1518                         du->hotspot_y = arg->yhot;
1519                 }
1520
1521                 mutex_unlock(&dev->mode_config.mutex);
1522                 return 0;
1523         }
1524
1525         crtc = drm_crtc_find(dev, arg->crtc_id);
1526         if (!crtc) {
1527                 ret = -ENOENT;
1528                 goto out;
1529         }
1530
1531         du = vmw_crtc_to_du(crtc);
1532
1533         du->hotspot_x = arg->xhot;
1534         du->hotspot_y = arg->yhot;
1535
1536 out:
1537         mutex_unlock(&dev->mode_config.mutex);
1538
1539         return ret;
1540 }
1541
1542 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1543                         unsigned width, unsigned height, unsigned pitch,
1544                         unsigned bpp, unsigned depth)
1545 {
1546         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1547                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1548         else if (vmw_fifo_have_pitchlock(vmw_priv))
1549                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1550         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1551         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1552         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1553
1554         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1555                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1556                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1557                 return -EINVAL;
1558         }
1559
1560         return 0;
1561 }
1562
1563 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1564 {
1565         struct vmw_vga_topology_state *save;
1566         uint32_t i;
1567
1568         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1569         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1570         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1571         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1572                 vmw_priv->vga_pitchlock =
1573                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1574         else if (vmw_fifo_have_pitchlock(vmw_priv))
1575                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1576                                                        SVGA_FIFO_PITCHLOCK);
1577
1578         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1579                 return 0;
1580
1581         vmw_priv->num_displays = vmw_read(vmw_priv,
1582                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1583
1584         if (vmw_priv->num_displays == 0)
1585                 vmw_priv->num_displays = 1;
1586
1587         for (i = 0; i < vmw_priv->num_displays; ++i) {
1588                 save = &vmw_priv->vga_save[i];
1589                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1590                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1591                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1592                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1593                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1594                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1595                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1596                 if (i == 0 && vmw_priv->num_displays == 1 &&
1597                     save->width == 0 && save->height == 0) {
1598
1599                         /*
1600                          * It should be fairly safe to assume that these
1601                          * values are uninitialized.
1602                          */
1603
1604                         save->width = vmw_priv->vga_width - save->pos_x;
1605                         save->height = vmw_priv->vga_height - save->pos_y;
1606                 }
1607         }
1608
1609         return 0;
1610 }
1611
1612 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1613 {
1614         struct vmw_vga_topology_state *save;
1615         uint32_t i;
1616
1617         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1618         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1619         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1620         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1621                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1622                           vmw_priv->vga_pitchlock);
1623         else if (vmw_fifo_have_pitchlock(vmw_priv))
1624                 iowrite32(vmw_priv->vga_pitchlock,
1625                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1626
1627         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1628                 return 0;
1629
1630         for (i = 0; i < vmw_priv->num_displays; ++i) {
1631                 save = &vmw_priv->vga_save[i];
1632                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1633                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1634                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1635                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1636                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1637                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1638                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1639         }
1640
1641         return 0;
1642 }
1643
1644 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1645                                 uint32_t pitch,
1646                                 uint32_t height)
1647 {
1648         return ((u64) pitch * (u64) height) < (u64) dev_priv->prim_bb_mem;
1649 }
1650
1651
1652 /**
1653  * Function called by DRM code called with vbl_lock held.
1654  */
1655 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1656 {
1657         return 0;
1658 }
1659
1660 /**
1661  * Function called by DRM code called with vbl_lock held.
1662  */
1663 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1664 {
1665         return -ENOSYS;
1666 }
1667
1668 /**
1669  * Function called by DRM code called with vbl_lock held.
1670  */
1671 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1672 {
1673 }
1674
1675
1676 /*
1677  * Small shared kms functions.
1678  */
1679
1680 static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1681                          struct drm_vmw_rect *rects)
1682 {
1683         struct drm_device *dev = dev_priv->dev;
1684         struct vmw_display_unit *du;
1685         struct drm_connector *con;
1686
1687         mutex_lock(&dev->mode_config.mutex);
1688
1689 #if 0
1690         {
1691                 unsigned int i;
1692
1693                 DRM_INFO("%s: new layout ", __func__);
1694                 for (i = 0; i < num; i++)
1695                         DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1696                                  rects[i].w, rects[i].h);
1697                 DRM_INFO("\n");
1698         }
1699 #endif
1700
1701         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1702                 du = vmw_connector_to_du(con);
1703                 if (num > du->unit) {
1704                         du->pref_width = rects[du->unit].w;
1705                         du->pref_height = rects[du->unit].h;
1706                         du->pref_active = true;
1707                         du->gui_x = rects[du->unit].x;
1708                         du->gui_y = rects[du->unit].y;
1709                 } else {
1710                         du->pref_width = 800;
1711                         du->pref_height = 600;
1712                         du->pref_active = false;
1713                 }
1714                 con->status = vmw_du_connector_detect(con, true);
1715         }
1716
1717         mutex_unlock(&dev->mode_config.mutex);
1718
1719         return 0;
1720 }
1721
1722 int vmw_du_page_flip(struct drm_crtc *crtc,
1723                      struct drm_framebuffer *fb,
1724                      struct drm_pending_vblank_event *event,
1725                      uint32_t page_flip_flags)
1726 {
1727         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1728         struct drm_framebuffer *old_fb = crtc->primary->fb;
1729         struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
1730         struct drm_file *file_priv ;
1731         struct vmw_fence_obj *fence = NULL;
1732         struct drm_clip_rect clips;
1733         int ret;
1734
1735         if (event == NULL)
1736                 return -EINVAL;
1737
1738         /* require ScreenObject support for page flipping */
1739         if (!dev_priv->sou_priv)
1740                 return -ENOSYS;
1741
1742         file_priv = event->base.file_priv;
1743         if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
1744                 return -EINVAL;
1745
1746         crtc->primary->fb = fb;
1747
1748         /* do a full screen dirty update */
1749         clips.x1 = clips.y1 = 0;
1750         clips.x2 = fb->width;
1751         clips.y2 = fb->height;
1752
1753         if (vfb->dmabuf)
1754                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
1755                                           0, 0, &clips, 1, 1, &fence);
1756         else
1757                 ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
1758                                            0, 0, &clips, 1, 1, &fence);
1759
1760
1761         if (ret != 0)
1762                 goto out_no_fence;
1763         if (!fence) {
1764                 ret = -EINVAL;
1765                 goto out_no_fence;
1766         }
1767
1768         ret = vmw_event_fence_action_queue(file_priv, fence,
1769                                            &event->base,
1770                                            &event->event.tv_sec,
1771                                            &event->event.tv_usec,
1772                                            true);
1773
1774         /*
1775          * No need to hold on to this now. The only cleanup
1776          * we need to do if we fail is unref the fence.
1777          */
1778         vmw_fence_obj_unreference(&fence);
1779
1780         if (vmw_crtc_to_du(crtc)->is_implicit)
1781                 vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
1782
1783         return ret;
1784
1785 out_no_fence:
1786         crtc->primary->fb = old_fb;
1787         return ret;
1788 }
1789
1790
1791 void vmw_du_crtc_save(struct drm_crtc *crtc)
1792 {
1793 }
1794
1795 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1796 {
1797 }
1798
1799 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1800                            u16 *r, u16 *g, u16 *b,
1801                            uint32_t start, uint32_t size)
1802 {
1803         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1804         int i;
1805
1806         for (i = 0; i < size; i++) {
1807                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1808                           r[i], g[i], b[i]);
1809                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1810                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1811                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1812         }
1813 }
1814
1815 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1816 {
1817 }
1818
1819 void vmw_du_connector_save(struct drm_connector *connector)
1820 {
1821 }
1822
1823 void vmw_du_connector_restore(struct drm_connector *connector)
1824 {
1825 }
1826
1827 enum drm_connector_status
1828 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1829 {
1830         uint32_t num_displays;
1831         struct drm_device *dev = connector->dev;
1832         struct vmw_private *dev_priv = vmw_priv(dev);
1833         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1834
1835         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1836
1837         return ((vmw_connector_to_du(connector)->unit < num_displays &&
1838                  du->pref_active) ?
1839                 connector_status_connected : connector_status_disconnected);
1840 }
1841
1842 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1843         /* 640x480@60Hz */
1844         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1845                    752, 800, 0, 480, 489, 492, 525, 0,
1846                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1847         /* 800x600@60Hz */
1848         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1849                    968, 1056, 0, 600, 601, 605, 628, 0,
1850                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1851         /* 1024x768@60Hz */
1852         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1853                    1184, 1344, 0, 768, 771, 777, 806, 0,
1854                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1855         /* 1152x864@75Hz */
1856         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1857                    1344, 1600, 0, 864, 865, 868, 900, 0,
1858                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1859         /* 1280x768@60Hz */
1860         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1861                    1472, 1664, 0, 768, 771, 778, 798, 0,
1862                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1863         /* 1280x800@60Hz */
1864         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1865                    1480, 1680, 0, 800, 803, 809, 831, 0,
1866                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1867         /* 1280x960@60Hz */
1868         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1869                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1870                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1871         /* 1280x1024@60Hz */
1872         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1873                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1874                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1875         /* 1360x768@60Hz */
1876         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1877                    1536, 1792, 0, 768, 771, 777, 795, 0,
1878                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1879         /* 1440x1050@60Hz */
1880         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1881                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1882                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1883         /* 1440x900@60Hz */
1884         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1885                    1672, 1904, 0, 900, 903, 909, 934, 0,
1886                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1887         /* 1600x1200@60Hz */
1888         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1889                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1890                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1891         /* 1680x1050@60Hz */
1892         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1893                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1894                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1895         /* 1792x1344@60Hz */
1896         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1897                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1898                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1899         /* 1853x1392@60Hz */
1900         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1901                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1902                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1903         /* 1920x1200@60Hz */
1904         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1905                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1906                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1907         /* 1920x1440@60Hz */
1908         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1909                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1910                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1911         /* 2560x1600@60Hz */
1912         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1913                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1914                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1915         /* Terminate */
1916         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1917 };
1918
1919 /**
1920  * vmw_guess_mode_timing - Provide fake timings for a
1921  * 60Hz vrefresh mode.
1922  *
1923  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1924  * members filled in.
1925  */
1926 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1927 {
1928         mode->hsync_start = mode->hdisplay + 50;
1929         mode->hsync_end = mode->hsync_start + 50;
1930         mode->htotal = mode->hsync_end + 50;
1931
1932         mode->vsync_start = mode->vdisplay + 50;
1933         mode->vsync_end = mode->vsync_start + 50;
1934         mode->vtotal = mode->vsync_end + 50;
1935
1936         mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1937         mode->vrefresh = drm_mode_vrefresh(mode);
1938 }
1939
1940
1941 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1942                                 uint32_t max_width, uint32_t max_height)
1943 {
1944         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1945         struct drm_device *dev = connector->dev;
1946         struct vmw_private *dev_priv = vmw_priv(dev);
1947         struct drm_display_mode *mode = NULL;
1948         struct drm_display_mode *bmode;
1949         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1950                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1951                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1952                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1953         };
1954         int i;
1955         u32 assumed_bpp = 2;
1956
1957         /*
1958          * If using screen objects, then assume 32-bpp because that's what the
1959          * SVGA device is assuming
1960          */
1961         if (dev_priv->sou_priv)
1962                 assumed_bpp = 4;
1963
1964         /* Add preferred mode */
1965         {
1966                 mode = drm_mode_duplicate(dev, &prefmode);
1967                 if (!mode)
1968                         return 0;
1969                 mode->hdisplay = du->pref_width;
1970                 mode->vdisplay = du->pref_height;
1971                 vmw_guess_mode_timing(mode);
1972
1973                 if (vmw_kms_validate_mode_vram(dev_priv,
1974                                                 mode->hdisplay * assumed_bpp,
1975                                                 mode->vdisplay)) {
1976                         drm_mode_probed_add(connector, mode);
1977                 } else {
1978                         drm_mode_destroy(dev, mode);
1979                         mode = NULL;
1980                 }
1981
1982                 if (du->pref_mode) {
1983                         list_del_init(&du->pref_mode->head);
1984                         drm_mode_destroy(dev, du->pref_mode);
1985                 }
1986
1987                 /* mode might be null here, this is intended */
1988                 du->pref_mode = mode;
1989         }
1990
1991         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1992                 bmode = &vmw_kms_connector_builtin[i];
1993                 if (bmode->hdisplay > max_width ||
1994                     bmode->vdisplay > max_height)
1995                         continue;
1996
1997                 if (!vmw_kms_validate_mode_vram(dev_priv,
1998                                                 bmode->hdisplay * assumed_bpp,
1999                                                 bmode->vdisplay))
2000                         continue;
2001
2002                 mode = drm_mode_duplicate(dev, bmode);
2003                 if (!mode)
2004                         return 0;
2005                 mode->vrefresh = drm_mode_vrefresh(mode);
2006
2007                 drm_mode_probed_add(connector, mode);
2008         }
2009
2010         /* Move the prefered mode first, help apps pick the right mode. */
2011         if (du->pref_mode)
2012                 list_move(&du->pref_mode->head, &connector->probed_modes);
2013
2014         drm_mode_connector_list_update(connector, true);
2015
2016         return 1;
2017 }
2018
2019 int vmw_du_connector_set_property(struct drm_connector *connector,
2020                                   struct drm_property *property,
2021                                   uint64_t val)
2022 {
2023         return 0;
2024 }
2025
2026
2027 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2028                                 struct drm_file *file_priv)
2029 {
2030         struct vmw_private *dev_priv = vmw_priv(dev);
2031         struct drm_vmw_update_layout_arg *arg =
2032                 (struct drm_vmw_update_layout_arg *)data;
2033         void __user *user_rects;
2034         struct drm_vmw_rect *rects;
2035         unsigned rects_size;
2036         int ret;
2037         int i;
2038         struct drm_mode_config *mode_config = &dev->mode_config;
2039
2040         if (!arg->num_outputs) {
2041                 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
2042                 vmw_du_update_layout(dev_priv, 1, &def_rect);
2043                 return 0;
2044         }
2045
2046         rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2047         rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2048                         GFP_KERNEL);
2049         if (unlikely(!rects))
2050                 return -ENOMEM;
2051
2052         user_rects = (void __user *)(unsigned long)arg->rects;
2053         ret = copy_from_user(rects, user_rects, rects_size);
2054         if (unlikely(ret != 0)) {
2055                 DRM_ERROR("Failed to get rects.\n");
2056                 ret = -EFAULT;
2057                 goto out_free;
2058         }
2059
2060         for (i = 0; i < arg->num_outputs; ++i) {
2061                 if (rects[i].x < 0 ||
2062                     rects[i].y < 0 ||
2063                     rects[i].x + rects[i].w > mode_config->max_width ||
2064                     rects[i].y + rects[i].h > mode_config->max_height) {
2065                         DRM_ERROR("Invalid GUI layout.\n");
2066                         ret = -EINVAL;
2067                         goto out_free;
2068                 }
2069         }
2070
2071         vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2072
2073 out_free:
2074         kfree(rects);
2075         return ret;
2076 }