drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

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