drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009-2014 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
  36 /**
  37  * Clip @num_rects number of @rects against @clip storing the
  38  * results in @out_rects and the number of passed rects in @out_num.
  39  */
  40 void vmw_clip_cliprects(struct drm_clip_rect *rects,
  41                         int num_rects,
  42                         struct vmw_clip_rect clip,
  43                         SVGASignedRect *out_rects,
  44                         int *out_num)
  45 {
  46         int i, k;
  47
  48         for (i = 0, k = 0; i < num_rects; i++) {
  49                 int x1 = max_t(int, clip.x1, rects[i].x1);
  50                 int y1 = max_t(int, clip.y1, rects[i].y1);
  51                 int x2 = min_t(int, clip.x2, rects[i].x2);
  52                 int y2 = min_t(int, clip.y2, rects[i].y2);
  53
  54                 if (x1 >= x2)
  55                         continue;
  56                 if (y1 >= y2)
  57                         continue;
  58
  59                 out_rects[k].left   = x1;
  60                 out_rects[k].top    = y1;
  61                 out_rects[k].right  = x2;
  62                 out_rects[k].bottom = y2;
  63                 k++;
  64         }
  65
  66         *out_num = k;
  67 }
  68
  69 void vmw_du_cleanup(struct vmw_display_unit *du)
  70 {
  71         if (du->cursor_surface)
  72                 vmw_surface_unreference(&du->cursor_surface);
  73         if (du->cursor_dmabuf)
  74                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
  75         drm_connector_unregister(&du->connector);
  76         drm_crtc_cleanup(&du->crtc);
  77         drm_encoder_cleanup(&du->encoder);
  78         drm_connector_cleanup(&du->connector);
  79 }
  80
  81 /*
  82  * Display Unit Cursor functions
  83  */
  84
  85 int vmw_cursor_update_image(struct vmw_private *dev_priv,
  86                             u32 *image, u32 width, u32 height,
  87                             u32 hotspotX, u32 hotspotY)
  88 {
  89         struct {
  90                 u32 cmd;
  91                 SVGAFifoCmdDefineAlphaCursor cursor;
  92         } *cmd;
  93         u32 image_size = width * height * 4;
  94         u32 cmd_size = sizeof(*cmd) + image_size;
  95
  96         if (!image)
  97                 return -EINVAL;
  98
  99         cmd = vmw_fifo_reserve(dev_priv, cmd_size);
 100         if (unlikely(cmd == NULL)) {
 101                 DRM_ERROR("Fifo reserve failed.\n");
 102                 return -ENOMEM;
 103         }
 104
 105         memset(cmd, 0, sizeof(*cmd));
 106
 107         memcpy(&cmd[1], image, image_size);
 108
 109         cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
 110         cmd->cursor.id = cpu_to_le32(0);
 111         cmd->cursor.width = cpu_to_le32(width);
 112         cmd->cursor.height = cpu_to_le32(height);
 113         cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
 114         cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
 115
 116         vmw_fifo_commit(dev_priv, cmd_size);
 117
 118         return 0;
 119 }
 120
 121 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
 122                              struct vmw_dma_buffer *dmabuf,
 123                              u32 width, u32 height,
 124                              u32 hotspotX, u32 hotspotY)
 125 {
 126         struct ttm_bo_kmap_obj map;
 127         unsigned long kmap_offset;
 128         unsigned long kmap_num;
 129         void *virtual;
 130         bool dummy;
 131         int ret;
 132
 133         kmap_offset = 0;
 134         kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
 135
 136         ret = ttm_bo_reserve(&dmabuf->base, true, false, false, NULL);
 137         if (unlikely(ret != 0)) {
 138                 DRM_ERROR("reserve failed\n");
 139                 return -EINVAL;
 140         }
 141
 142         ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
 143         if (unlikely(ret != 0))
 144                 goto err_unreserve;
 145
 146         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 147         ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
 148                                       hotspotX, hotspotY);
 149
 150         ttm_bo_kunmap(&map);
 151 err_unreserve:
 152         ttm_bo_unreserve(&dmabuf->base);
 153
 154         return ret;
 155 }
 156
 157
 158 void vmw_cursor_update_position(struct vmw_private *dev_priv,
 159                                 bool show, int x, int y)
 160 {
 161         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
 162         uint32_t count;
 163
 164         iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
 165         iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
 166         iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
 167         count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
 168         iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
 169 }
 170
 171 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
 172                            uint32_t handle, uint32_t width, uint32_t height)
 173 {
 174         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 175         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 176         struct vmw_surface *surface = NULL;
 177         struct vmw_dma_buffer *dmabuf = NULL;
 178         int ret;
 179
 180         /*
 181          * FIXME: Unclear whether there's any global state touched by the
 182          * cursor_set function, especially vmw_cursor_update_position looks
 183          * suspicious. For now take the easy route and reacquire all locks. We
 184          * can do this since the caller in the drm core doesn't check anything
 185          * which is protected by any looks.
 186          */
 187         drm_modeset_unlock_crtc(crtc);
 188         drm_modeset_lock_all(dev_priv->dev);
 189
 190         /* A lot of the code assumes this */
 191         if (handle && (width != 64 || height != 64)) {
 192                 ret = -EINVAL;
 193                 goto out;
 194         }
 195
 196         if (handle) {
 197                 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 198
 199                 ret = vmw_user_lookup_handle(dev_priv, tfile,
 200                                              handle, &surface, &dmabuf);
 201                 if (ret) {
 202                         DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
 203                         ret = -EINVAL;
 204                         goto out;
 205                 }
 206         }
 207
 208         /* need to do this before taking down old image */
 209         if (surface && !surface->snooper.image) {
 210                 DRM_ERROR("surface not suitable for cursor\n");
 211                 vmw_surface_unreference(&surface);
 212                 ret = -EINVAL;
 213                 goto out;
 214         }
 215
 216         /* takedown old cursor */
 217         if (du->cursor_surface) {
 218                 du->cursor_surface->snooper.crtc = NULL;
 219                 vmw_surface_unreference(&du->cursor_surface);
 220         }
 221         if (du->cursor_dmabuf)
 222                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
 223
 224         /* setup new image */
 225         if (surface) {
 226                 /* vmw_user_surface_lookup takes one reference */
 227                 du->cursor_surface = surface;
 228
 229                 du->cursor_surface->snooper.crtc = crtc;
 230                 du->cursor_age = du->cursor_surface->snooper.age;
 231                 vmw_cursor_update_image(dev_priv, surface->snooper.image,
 232                                         64, 64, du->hotspot_x, du->hotspot_y);
 233         } else if (dmabuf) {
 234                 /* vmw_user_surface_lookup takes one reference */
 235                 du->cursor_dmabuf = dmabuf;
 236
 237                 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
 238                                                du->hotspot_x, du->hotspot_y);
 239         } else {
 240                 vmw_cursor_update_position(dev_priv, false, 0, 0);
 241                 ret = 0;
 242                 goto out;
 243         }
 244
 245         vmw_cursor_update_position(dev_priv, true,
 246                                    du->cursor_x + du->hotspot_x,
 247                                    du->cursor_y + du->hotspot_y);
 248
 249         ret = 0;
 250 out:
 251         drm_modeset_unlock_all(dev_priv->dev);
 252         drm_modeset_lock_crtc(crtc, crtc->cursor);
 253
 254         return ret;
 255 }
 256
 257 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 258 {
 259         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 260         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 261         bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
 262
 263         du->cursor_x = x + crtc->x;
 264         du->cursor_y = y + crtc->y;
 265
 266         /*
 267          * FIXME: Unclear whether there's any global state touched by the
 268          * cursor_set function, especially vmw_cursor_update_position looks
 269          * suspicious. For now take the easy route and reacquire all locks. We
 270          * can do this since the caller in the drm core doesn't check anything
 271          * which is protected by any looks.
 272          */
 273         drm_modeset_unlock_crtc(crtc);
 274         drm_modeset_lock_all(dev_priv->dev);
 275
 276         vmw_cursor_update_position(dev_priv, shown,
 277                                    du->cursor_x + du->hotspot_x,
 278                                    du->cursor_y + du->hotspot_y);
 279
 280         drm_modeset_unlock_all(dev_priv->dev);
 281         drm_modeset_lock_crtc(crtc, crtc->cursor);
 282
 283         return 0;
 284 }
 285
 286 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 287                           struct ttm_object_file *tfile,
 288                           struct ttm_buffer_object *bo,
 289                           SVGA3dCmdHeader *header)
 290 {
 291         struct ttm_bo_kmap_obj map;
 292         unsigned long kmap_offset;
 293         unsigned long kmap_num;
 294         SVGA3dCopyBox *box;
 295         unsigned box_count;
 296         void *virtual;
 297         bool dummy;
 298         struct vmw_dma_cmd {
 299                 SVGA3dCmdHeader header;
 300                 SVGA3dCmdSurfaceDMA dma;
 301         } *cmd;
 302         int i, ret;
 303
 304         cmd = container_of(header, struct vmw_dma_cmd, header);
 305
 306         /* No snooper installed */
 307         if (!srf->snooper.image)
 308                 return;
 309
 310         if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
 311                 DRM_ERROR("face and mipmap for cursors should never != 0\n");
 312                 return;
 313         }
 314
 315         if (cmd->header.size < 64) {
 316                 DRM_ERROR("at least one full copy box must be given\n");
 317                 return;
 318         }
 319
 320         box = (SVGA3dCopyBox *)&cmd[1];
 321         box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
 322                         sizeof(SVGA3dCopyBox);
 323
 324         if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
 325             box->x != 0    || box->y != 0    || box->z != 0    ||
 326             box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
 327             box->d != 1    || box_count != 1) {
 328                 /* TODO handle none page aligned offsets */
 329                 /* TODO handle more dst & src != 0 */
 330                 /* TODO handle more then one copy */
 331                 DRM_ERROR("Cant snoop dma request for cursor!\n");
 332                 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
 333                           box->srcx, box->srcy, box->srcz,
 334                           box->x, box->y, box->z,
 335                           box->w, box->h, box->d, box_count,
 336                           cmd->dma.guest.ptr.offset);
 337                 return;
 338         }
 339
 340         kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
 341         kmap_num = (64*64*4) >> PAGE_SHIFT;
 342
 343         ret = ttm_bo_reserve(bo, true, false, false, NULL);
 344         if (unlikely(ret != 0)) {
 345                 DRM_ERROR("reserve failed\n");
 346                 return;
 347         }
 348
 349         ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
 350         if (unlikely(ret != 0))
 351                 goto err_unreserve;
 352
 353         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 354
 355         if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
 356                 memcpy(srf->snooper.image, virtual, 64*64*4);
 357         } else {
 358                 /* Image is unsigned pointer. */
 359                 for (i = 0; i < box->h; i++)
 360                         memcpy(srf->snooper.image + i * 64,
 361                                virtual + i * cmd->dma.guest.pitch,
 362                                box->w * 4);
 363         }
 364
 365         srf->snooper.age++;
 366
 367         ttm_bo_kunmap(&map);
 368 err_unreserve:
 369         ttm_bo_unreserve(bo);
 370 }
 371
 372 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
 373 {
 374         struct drm_device *dev = dev_priv->dev;
 375         struct vmw_display_unit *du;
 376         struct drm_crtc *crtc;
 377
 378         mutex_lock(&dev->mode_config.mutex);
 379
 380         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 381                 du = vmw_crtc_to_du(crtc);
 382                 if (!du->cursor_surface ||
 383                     du->cursor_age == du->cursor_surface->snooper.age)
 384                         continue;
 385
 386                 du->cursor_age = du->cursor_surface->snooper.age;
 387                 vmw_cursor_update_image(dev_priv,
 388                                         du->cursor_surface->snooper.image,
 389                                         64, 64, du->hotspot_x, du->hotspot_y);
 390         }
 391
 392         mutex_unlock(&dev->mode_config.mutex);
 393 }
 394
 395 /*
 396  * Generic framebuffer code
 397  */
 398
 399 /*
 400  * Surface framebuffer code
 401  */
 402
 403 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
 404 {
 405         struct vmw_framebuffer_surface *vfbs =
 406                 vmw_framebuffer_to_vfbs(framebuffer);
 407         struct vmw_master *vmaster = vmw_master(vfbs->master);
 408
 409
 410         mutex_lock(&vmaster->fb_surf_mutex);
 411         list_del(&vfbs->head);
 412         mutex_unlock(&vmaster->fb_surf_mutex);
 413
 414         drm_master_put(&vfbs->master);
 415         drm_framebuffer_cleanup(framebuffer);
 416         vmw_surface_unreference(&vfbs->surface);
 417         ttm_base_object_unref(&vfbs->base.user_obj);
 418
 419         kfree(vfbs);
 420 }
 421
 422 static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
 423                                   struct drm_file *file_priv,
 424                                   unsigned flags, unsigned color,
 425                                   struct drm_clip_rect *clips,
 426                                   unsigned num_clips)
 427 {
 428         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 429         struct vmw_framebuffer_surface *vfbs =
 430                 vmw_framebuffer_to_vfbs(framebuffer);
 431         struct drm_clip_rect norect;
 432         int ret, inc = 1;
 433
 434         if (unlikely(vfbs->master != file_priv->master))
 435                 return -EINVAL;
 436
 437         /* Legacy Display Unit does not support 3D */
 438         if (dev_priv->active_display_unit == vmw_du_legacy)
 439                 return -EINVAL;
 440
 441         drm_modeset_lock_all(dev_priv->dev);
 442
 443         ret = ttm_read_lock(&dev_priv->reservation_sem, true);
 444         if (unlikely(ret != 0)) {
 445                 drm_modeset_unlock_all(dev_priv->dev);
 446                 return ret;
 447         }
 448
 449         if (!num_clips) {
 450                 num_clips = 1;
 451                 clips = &norect;
 452                 norect.x1 = norect.y1 = 0;
 453                 norect.x2 = framebuffer->width;
 454                 norect.y2 = framebuffer->height;
 455         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 456                 num_clips /= 2;
 457                 inc = 2; /* skip source rects */
 458         }
 459
 460         if (dev_priv->active_display_unit == vmw_du_screen_object)
 461                 ret = vmw_kms_sou_do_surface_dirty(dev_priv, file_priv,
 462                                                    &vfbs->base,
 463                                                    flags, color,
 464                                                    clips, num_clips,
 465                                                    inc, NULL);
 466         else
 467                 ret = vmw_kms_stdu_do_surface_dirty(dev_priv, file_priv,
 468                                                     &vfbs->base,
 469                                                     clips, num_clips,
 470                                                     inc);
 471
 472         vmw_fifo_flush(dev_priv, false);
 473         ttm_read_unlock(&dev_priv->reservation_sem);
 474
 475         drm_modeset_unlock_all(dev_priv->dev);
 476
 477         return 0;
 478 }
 479
 480 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
 481         .destroy = vmw_framebuffer_surface_destroy,
 482         .dirty = vmw_framebuffer_surface_dirty,
 483 };
 484
 485 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
 486                                            struct drm_file *file_priv,
 487                                            struct vmw_surface *surface,
 488                                            struct vmw_framebuffer **out,
 489                                            const struct drm_mode_fb_cmd
 490                                            *mode_cmd,
 491                                            bool is_dmabuf_proxy)
 492
 493 {
 494         struct drm_device *dev = dev_priv->dev;
 495         struct vmw_framebuffer_surface *vfbs;
 496         enum SVGA3dSurfaceFormat format;
 497         struct vmw_master *vmaster = vmw_master(file_priv->master);
 498         int ret;
 499
 500         /* 3D is only supported on HWv8 and newer hosts */
 501         if (dev_priv->active_display_unit == vmw_du_legacy)
 502                 return -ENOSYS;
 503
 504         /*
 505          * Sanity checks.
 506          */
 507
 508         /* Surface must be marked as a scanout. */
 509         if (unlikely(!surface->scanout))
 510                 return -EINVAL;
 511
 512         if (unlikely(surface->mip_levels[0] != 1 ||
 513                      surface->num_sizes != 1 ||
 514                      surface->base_size.width < mode_cmd->width ||
 515                      surface->base_size.height < mode_cmd->height ||
 516                      surface->base_size.depth != 1)) {
 517                 DRM_ERROR("Incompatible surface dimensions "
 518                           "for requested mode.\n");
 519                 return -EINVAL;
 520         }
 521
 522         switch (mode_cmd->depth) {
 523         case 32:
 524                 format = SVGA3D_A8R8G8B8;
 525                 break;
 526         case 24:
 527                 format = SVGA3D_X8R8G8B8;
 528                 break;
 529         case 16:
 530                 format = SVGA3D_R5G6B5;
 531                 break;
 532         case 15:
 533                 format = SVGA3D_A1R5G5B5;
 534                 break;
 535         default:
 536                 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 537                 return -EINVAL;
 538         }
 539
 540         if (unlikely(format != surface->format)) {
 541                 DRM_ERROR("Invalid surface format for requested mode.\n");
 542                 return -EINVAL;
 543         }
 544
 545         vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
 546         if (!vfbs) {
 547                 ret = -ENOMEM;
 548                 goto out_err1;
 549         }
 550
 551         if (!vmw_surface_reference(surface)) {
 552                 DRM_ERROR("failed to reference surface %p\n", surface);
 553                 ret = -EINVAL;
 554                 goto out_err2;
 555         }
 556
 557         /* XXX get the first 3 from the surface info */
 558         vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
 559         vfbs->base.base.pitches[0] = mode_cmd->pitch;
 560         vfbs->base.base.depth = mode_cmd->depth;
 561         vfbs->base.base.width = mode_cmd->width;
 562         vfbs->base.base.height = mode_cmd->height;
 563         vfbs->surface = surface;
 564         vfbs->base.user_handle = mode_cmd->handle;
 565         vfbs->master = drm_master_get(file_priv->master);
 566         vfbs->is_dmabuf_proxy = is_dmabuf_proxy;
 567
 568         mutex_lock(&vmaster->fb_surf_mutex);
 569         list_add_tail(&vfbs->head, &vmaster->fb_surf);
 570         mutex_unlock(&vmaster->fb_surf_mutex);
 571
 572         *out = &vfbs->base;
 573
 574         ret = drm_framebuffer_init(dev, &vfbs->base.base,
 575                                    &vmw_framebuffer_surface_funcs);
 576         if (ret)
 577                 goto out_err3;
 578
 579         return 0;
 580
 581 out_err3:
 582         vmw_surface_unreference(&surface);
 583 out_err2:
 584         kfree(vfbs);
 585 out_err1:
 586         return ret;
 587 }
 588
 589 /*
 590  * Dmabuf framebuffer code
 591  */
 592
 593 static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
 594 {
 595         struct vmw_framebuffer_dmabuf *vfbd =
 596                 vmw_framebuffer_to_vfbd(framebuffer);
 597
 598         drm_framebuffer_cleanup(framebuffer);
 599         vmw_dmabuf_unreference(&vfbd->buffer);
 600         ttm_base_object_unref(&vfbd->base.user_obj);
 601
 602         kfree(vfbd);
 603 }
 604
 605 static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
 606                                  struct drm_file *file_priv,
 607                                  unsigned flags, unsigned color,
 608                                  struct drm_clip_rect *clips,
 609                                  unsigned num_clips)
 610 {
 611         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 612         struct vmw_framebuffer_dmabuf *vfbd =
 613                 vmw_framebuffer_to_vfbd(framebuffer);
 614         struct drm_clip_rect norect;
 615         int ret, increment = 1;
 616
 617         drm_modeset_lock_all(dev_priv->dev);
 618
 619         ret = ttm_read_lock(&dev_priv->reservation_sem, true);
 620         if (unlikely(ret != 0)) {
 621                 drm_modeset_unlock_all(dev_priv->dev);
 622                 return ret;
 623         }
 624
 625         if (!num_clips) {
 626                 num_clips = 1;
 627                 clips = &norect;
 628                 norect.x1 = norect.y1 = 0;
 629                 norect.x2 = framebuffer->width;
 630                 norect.y2 = framebuffer->height;
 631         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 632                 num_clips /= 2;
 633                 increment = 2;
 634         }
 635
 636         if (dev_priv->ldu_priv) {
 637                 ret = vmw_kms_ldu_do_dmabuf_dirty(dev_priv, &vfbd->base,
 638                                                   flags, color,
 639                                                   clips, num_clips, increment);
 640         } else if (dev_priv->active_display_unit == vmw_du_screen_object) {
 641                 ret = vmw_kms_sou_do_dmabuf_dirty(file_priv, dev_priv,
 642                                                   &vfbd->base,
 643                                                   flags, color,
 644                                                   clips, num_clips, increment,
 645                                                   NULL);
 646         } else {
 647                 ret = vmw_kms_stdu_do_surface_dirty(dev_priv, file_priv,
 648                                                     &vfbd->base,
 649                                                     clips, num_clips,
 650                                                     increment);
 651         }
 652
 653         vmw_fifo_flush(dev_priv, false);
 654         ttm_read_unlock(&dev_priv->reservation_sem);
 655
 656         drm_modeset_unlock_all(dev_priv->dev);
 657
 658         return ret;
 659 }
 660
 661 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
 662         .destroy = vmw_framebuffer_dmabuf_destroy,
 663         .dirty = vmw_framebuffer_dmabuf_dirty,
 664 };
 665
 666 /**
 667  * Pin the dmabuffer to the start of vram.
 668  */
 669 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
 670 {
 671         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 672         struct vmw_framebuffer_dmabuf *vfbd =
 673                 vmw_framebuffer_to_vfbd(&vfb->base);
 674         int ret;
 675
 676         /* This code should only be used with Legacy Display Unit */
 677         BUG_ON(dev_priv->active_display_unit != vmw_du_legacy);
 678
 679         vmw_overlay_pause_all(dev_priv);
 680
 681         ret = vmw_dmabuf_pin_in_start_of_vram(dev_priv, vfbd->buffer, false);
 682
 683         vmw_overlay_resume_all(dev_priv);
 684
 685         WARN_ON(ret != 0);
 686
 687         return 0;
 688 }
 689
 690 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
 691 {
 692         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 693         struct vmw_framebuffer_dmabuf *vfbd =
 694                 vmw_framebuffer_to_vfbd(&vfb->base);
 695
 696         if (!vfbd->buffer) {
 697                 WARN_ON(!vfbd->buffer);
 698                 return 0;
 699         }
 700
 701         return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
 702 }
 703
 704 /**
 705  * vmw_create_dmabuf_proxy - create a proxy surface for the DMA buf
 706  *
 707  * @dev: DRM device
 708  * @mode_cmd: parameters for the new surface
 709  * @dmabuf_mob: MOB backing the DMA buf
 710  * @srf_out: newly created surface
 711  *
 712  * When the content FB is a DMA buf, we create a surface as a proxy to the
 713  * same buffer.  This way we can do a surface copy rather than a surface DMA.
 714  * This is a more efficient approach
 715  *
 716  * RETURNS:
 717  * 0 on success, error code otherwise
 718  */
 719 static int vmw_create_dmabuf_proxy(struct drm_device *dev,
 720                                    struct drm_mode_fb_cmd *mode_cmd,
 721                                    struct vmw_dma_buffer *dmabuf_mob,
 722                                    struct vmw_surface **srf_out)
 723 {
 724         uint32_t format;
 725         struct drm_vmw_size content_base_size;
 726         int ret;
 727
 728
 729         switch (mode_cmd->depth) {
 730         case 32:
 731         case 24:
 732                 format = SVGA3D_X8R8G8B8;
 733                 break;
 734
 735         case 16:
 736         case 15:
 737                 format = SVGA3D_R5G6B5;
 738                 break;
 739
 740         case 8:
 741                 format = SVGA3D_P8;
 742                 break;
 743
 744         default:
 745                 DRM_ERROR("Invalid framebuffer format %d\n", mode_cmd->depth);
 746                 return -EINVAL;
 747         }
 748
 749         content_base_size.width  = mode_cmd->width;
 750         content_base_size.height = mode_cmd->height;
 751         content_base_size.depth  = 1;
 752
 753         ret = vmw_surface_gb_priv_define(dev,
 754                         0, /* kernel visible only */
 755                         0, /* flags */
 756                         format,
 757                         true, /* can be a scanout buffer */
 758                         1, /* num of mip levels */
 759                         0,
 760                         content_base_size,
 761                         srf_out);
 762         if (ret) {
 763                 DRM_ERROR("Failed to allocate proxy content buffer\n");
 764                 return ret;
 765         }
 766
 767         /* Use the same MOB backing for surface */
 768         vmw_dmabuf_reference(dmabuf_mob);
 769
 770         (*srf_out)->res.backup = dmabuf_mob;
 771
 772         /* FIXME:  Waiting for fbdev rework to do a proper reserve/pin */
 773         ret = vmw_resource_validate(&(*srf_out)->res);
 774
 775         return ret;
 776 }
 777
 778
 779
 780 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
 781                                           struct vmw_dma_buffer *dmabuf,
 782                                           struct vmw_framebuffer **out,
 783                                           const struct drm_mode_fb_cmd
 784                                           *mode_cmd)
 785
 786 {
 787         struct drm_device *dev = dev_priv->dev;
 788         struct vmw_framebuffer_dmabuf *vfbd;
 789         unsigned int requested_size;
 790         int ret;
 791
 792         requested_size = mode_cmd->height * mode_cmd->pitch;
 793         if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
 794                 DRM_ERROR("Screen buffer object size is too small "
 795                           "for requested mode.\n");
 796                 return -EINVAL;
 797         }
 798
 799         /* Limited framebuffer color depth support for screen objects */
 800         if (dev_priv->active_display_unit == vmw_du_screen_object) {
 801                 switch (mode_cmd->depth) {
 802                 case 32:
 803                 case 24:
 804                         /* Only support 32 bpp for 32 and 24 depth fbs */
 805                         if (mode_cmd->bpp == 32)
 806                                 break;
 807
 808                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
 809                                   mode_cmd->depth, mode_cmd->bpp);
 810                         return -EINVAL;
 811                 case 16:
 812                 case 15:
 813                         /* Only support 16 bpp for 16 and 15 depth fbs */
 814                         if (mode_cmd->bpp == 16)
 815                                 break;
 816
 817                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
 818                                   mode_cmd->depth, mode_cmd->bpp);
 819                         return -EINVAL;
 820                 default:
 821                         DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 822                         return -EINVAL;
 823                 }
 824         }
 825
 826         vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
 827         if (!vfbd) {
 828                 ret = -ENOMEM;
 829                 goto out_err1;
 830         }
 831
 832         if (!vmw_dmabuf_reference(dmabuf)) {
 833                 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
 834                 ret = -EINVAL;
 835                 goto out_err2;
 836         }
 837
 838         vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
 839         vfbd->base.base.pitches[0] = mode_cmd->pitch;
 840         vfbd->base.base.depth = mode_cmd->depth;
 841         vfbd->base.base.width = mode_cmd->width;
 842         vfbd->base.base.height = mode_cmd->height;
 843         if (dev_priv->active_display_unit == vmw_du_legacy) {
 844                 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
 845                 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
 846         }
 847         vfbd->base.dmabuf = true;
 848         vfbd->buffer = dmabuf;
 849         vfbd->base.user_handle = mode_cmd->handle;
 850         *out = &vfbd->base;
 851
 852         ret = drm_framebuffer_init(dev, &vfbd->base.base,
 853                                    &vmw_framebuffer_dmabuf_funcs);
 854         if (ret)
 855                 goto out_err3;
 856
 857         return 0;
 858
 859 out_err3:
 860         vmw_dmabuf_unreference(&dmabuf);
 861 out_err2:
 862         kfree(vfbd);
 863 out_err1:
 864         return ret;
 865 }
 866
 867 /*
 868  * Generic Kernel modesetting functions
 869  */
 870
 871 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 872                                                  struct drm_file *file_priv,
 873                                                  struct drm_mode_fb_cmd2 *mode_cmd2)
 874 {
 875         struct vmw_private *dev_priv = vmw_priv(dev);
 876         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 877         struct vmw_framebuffer *vfb = NULL;
 878         struct vmw_surface *surface = NULL;
 879         struct vmw_dma_buffer *bo = NULL;
 880         struct ttm_base_object *user_obj;
 881         struct drm_mode_fb_cmd mode_cmd;
 882         bool is_dmabuf_proxy = false;
 883         int ret;
 884
 885         mode_cmd.width = mode_cmd2->width;
 886         mode_cmd.height = mode_cmd2->height;
 887         mode_cmd.pitch = mode_cmd2->pitches[0];
 888         mode_cmd.handle = mode_cmd2->handles[0];
 889         drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
 890                                     &mode_cmd.bpp);
 891
 892         /**
 893          * This code should be conditioned on Screen Objects not being used.
 894          * If screen objects are used, we can allocate a GMR to hold the
 895          * requested framebuffer.
 896          */
 897
 898         if (!vmw_kms_validate_mode_vram(dev_priv,
 899                                         mode_cmd.pitch,
 900                                         mode_cmd.height)) {
 901                 DRM_ERROR("Requested mode exceed bounding box limit.\n");
 902                 return ERR_PTR(-ENOMEM);
 903         }
 904
 905         /*
 906          * Take a reference on the user object of the resource
 907          * backing the kms fb. This ensures that user-space handle
 908          * lookups on that resource will always work as long as
 909          * it's registered with a kms framebuffer. This is important,
 910          * since vmw_execbuf_process identifies resources in the
 911          * command stream using user-space handles.
 912          */
 913
 914         user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
 915         if (unlikely(user_obj == NULL)) {
 916                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
 917                 return ERR_PTR(-ENOENT);
 918         }
 919
 920         /**
 921          * End conditioned code.
 922          */
 923
 924         /* returns either a dmabuf or surface */
 925         ret = vmw_user_lookup_handle(dev_priv, tfile,
 926                                      mode_cmd.handle,
 927                                      &surface, &bo);
 928         if (ret)
 929                 goto err_out;
 930
 931         /*
 932          * We cannot use the SurfaceDMA command in an non-accelerated VM,
 933          * therefore, wrap the DMA buf in a surface so we can use the
 934          * SurfaceCopy command.
 935          */
 936         if (bo && !(dev_priv->capabilities & SVGA_CAP_3D) &&
 937             dev_priv->active_display_unit == vmw_du_screen_target) {
 938                 ret = vmw_create_dmabuf_proxy(dev_priv->dev, &mode_cmd, bo,
 939                         &surface);
 940                 if (ret)
 941                         goto err_out;
 942
 943                 is_dmabuf_proxy = true;
 944         }
 945
 946         /* Create the new framebuffer depending one what we have */
 947         if (surface)
 948                 ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
 949                                                       surface, &vfb, &mode_cmd,
 950                                                       is_dmabuf_proxy);
 951         else if (bo)
 952                 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
 953                                                      &mode_cmd);
 954         else
 955                 BUG();
 956
 957 err_out:
 958         /* vmw_user_lookup_handle takes one ref so does new_fb */
 959         if (bo)
 960                 vmw_dmabuf_unreference(&bo);
 961         if (surface)
 962                 vmw_surface_unreference(&surface);
 963
 964         if (ret) {
 965                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
 966                 ttm_base_object_unref(&user_obj);
 967                 return ERR_PTR(ret);
 968         } else
 969                 vfb->user_obj = user_obj;
 970
 971         return &vfb->base;
 972 }
 973
 974 static const struct drm_mode_config_funcs vmw_kms_funcs = {
 975         .fb_create = vmw_kms_fb_create,
 976 };
 977
 978 int vmw_kms_generic_present(struct vmw_private *dev_priv,
 979                     struct drm_file *file_priv,
 980                     struct vmw_framebuffer *vfb,
 981                     struct vmw_surface *surface,
 982                     uint32_t sid,
 983                     int32_t destX, int32_t destY,
 984                     struct drm_vmw_rect *clips,
 985                     uint32_t num_clips)
 986 {
 987         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
 988         struct drm_clip_rect *tmp;
 989         struct drm_crtc *crtc;
 990         size_t fifo_size;
 991         int i, k, num_units;
 992         int ret = 0; /* silence warning */
 993         int left, right, top, bottom;
 994
 995         struct {
 996                 SVGA3dCmdHeader header;
 997                 SVGA3dCmdBlitSurfaceToScreen body;
 998         } *cmd;
 999         SVGASignedRect *blits;
1000
1001         num_units = 0;
1002         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1003                 if (crtc->primary->fb != &vfb->base)
1004                         continue;
1005                 units[num_units++] = vmw_crtc_to_du(crtc);
1006         }
1007
1008         BUG_ON(surface == NULL);
1009         BUG_ON(!clips || !num_clips);
1010
1011         tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
1012         if (unlikely(tmp == NULL)) {
1013                 DRM_ERROR("Temporary cliprect memory alloc failed.\n");
1014                 return -ENOMEM;
1015         }
1016
1017         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
1018         cmd = kmalloc(fifo_size, GFP_KERNEL);
1019         if (unlikely(cmd == NULL)) {
1020                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1021                 ret = -ENOMEM;
1022                 goto out_free_tmp;
1023         }
1024
1025         left = clips->x;
1026         right = clips->x + clips->w;
1027         top = clips->y;
1028         bottom = clips->y + clips->h;
1029
1030         for (i = 1; i < num_clips; i++) {
1031                 left = min_t(int, left, (int)clips[i].x);
1032                 right = max_t(int, right, (int)clips[i].x + clips[i].w);
1033                 top = min_t(int, top, (int)clips[i].y);
1034                 bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
1035         }
1036
1037         /* only need to do this once */
1038         memset(cmd, 0, fifo_size);
1039         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
1040
1041         blits = (SVGASignedRect *)&cmd[1];
1042
1043         cmd->body.srcRect.left = left;
1044         cmd->body.srcRect.right = right;
1045         cmd->body.srcRect.top = top;
1046         cmd->body.srcRect.bottom = bottom;
1047
1048         for (i = 0; i < num_clips; i++) {
1049                 tmp[i].x1 = clips[i].x - left;
1050                 tmp[i].x2 = clips[i].x + clips[i].w - left;
1051                 tmp[i].y1 = clips[i].y - top;
1052                 tmp[i].y2 = clips[i].y + clips[i].h - top;
1053         }
1054
1055         for (k = 0; k < num_units; k++) {
1056                 struct vmw_display_unit *unit = units[k];
1057                 struct vmw_clip_rect clip;
1058                 int num;
1059
1060                 clip.x1 = left + destX - unit->crtc.x;
1061                 clip.y1 = top + destY - unit->crtc.y;
1062                 clip.x2 = right + destX - unit->crtc.x;
1063                 clip.y2 = bottom + destY - unit->crtc.y;
1064
1065                 /* skip any crtcs that misses the clip region */
1066                 if (clip.x1 >= unit->crtc.mode.hdisplay ||
1067                     clip.y1 >= unit->crtc.mode.vdisplay ||
1068                     clip.x2 <= 0 || clip.y2 <= 0)
1069                         continue;
1070
1071                 /*
1072                  * In order for the clip rects to be correctly scaled
1073                  * the src and dest rects needs to be the same size.
1074                  */
1075                 cmd->body.destRect.left = clip.x1;
1076                 cmd->body.destRect.right = clip.x2;
1077                 cmd->body.destRect.top = clip.y1;
1078                 cmd->body.destRect.bottom = clip.y2;
1079
1080                 /* create a clip rect of the crtc in dest coords */
1081                 clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
1082                 clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
1083                 clip.x1 = 0 - clip.x1;
1084                 clip.y1 = 0 - clip.y1;
1085
1086                 /* need to reset sid as it is changed by execbuf */
1087                 cmd->body.srcImage.sid = sid;
1088                 cmd->body.destScreenId = unit->unit;
1089
1090                 /* clip and write blits to cmd stream */
1091                 vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
1092
1093                 /* if no cliprects hit skip this */
1094                 if (num == 0)
1095                         continue;
1096
1097                 /* recalculate package length */
1098                 fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
1099                 cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
1100                 ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1101                                           fifo_size, 0, 0, NULL, NULL);
1102
1103                 if (unlikely(ret != 0))
1104                         break;
1105         }
1106
1107         kfree(cmd);
1108 out_free_tmp:
1109         kfree(tmp);
1110
1111         return ret;
1112 }
1113
1114 int vmw_kms_present(struct vmw_private *dev_priv,
1115                     struct drm_file *file_priv,
1116                     struct vmw_framebuffer *vfb,
1117                     struct vmw_surface *surface,
1118                     uint32_t sid,
1119                     int32_t destX, int32_t destY,
1120                     struct drm_vmw_rect *clips,
1121                     uint32_t num_clips)
1122 {
1123         int ret;
1124
1125         if (dev_priv->active_display_unit == vmw_du_screen_target)
1126                 ret = vmw_kms_stdu_present(dev_priv, file_priv, vfb, sid,
1127                                            destX, destY, clips, num_clips);
1128         else
1129                 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb,
1130                                               surface, sid, destX, destY,
1131                                               clips, num_clips);
1132         if (ret)
1133                 return ret;
1134
1135         vmw_fifo_flush(dev_priv, false);
1136
1137         return 0;
1138 }
1139
1140 int vmw_kms_readback(struct vmw_private *dev_priv,
1141                      struct drm_file *file_priv,
1142                      struct vmw_framebuffer *vfb,
1143                      struct drm_vmw_fence_rep __user *user_fence_rep,
1144                      struct drm_vmw_rect *clips,
1145                      uint32_t num_clips)
1146 {
1147         struct vmw_framebuffer_dmabuf *vfbd =
1148                 vmw_framebuffer_to_vfbd(&vfb->base);
1149         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1150         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1151         struct drm_crtc *crtc;
1152         size_t fifo_size;
1153         int i, k, ret, num_units, blits_pos;
1154
1155         struct {
1156                 uint32_t header;
1157                 SVGAFifoCmdDefineGMRFB body;
1158         } *cmd;
1159         struct {
1160                 uint32_t header;
1161                 SVGAFifoCmdBlitScreenToGMRFB body;
1162         } *blits;
1163
1164         num_units = 0;
1165         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1166                 if (crtc->primary->fb != &vfb->base)
1167                         continue;
1168                 units[num_units++] = vmw_crtc_to_du(crtc);
1169         }
1170
1171         BUG_ON(dmabuf == NULL);
1172         BUG_ON(!clips || !num_clips);
1173
1174         /* take a safe guess at fifo size */
1175         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1176         cmd = kmalloc(fifo_size, GFP_KERNEL);
1177         if (unlikely(cmd == NULL)) {
1178                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1179                 return -ENOMEM;
1180         }
1181
1182         memset(cmd, 0, fifo_size);
1183         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1184         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1185         cmd->body.format.colorDepth = vfb->base.depth;
1186         cmd->body.format.reserved = 0;
1187         cmd->body.bytesPerLine = vfb->base.pitches[0];
1188         cmd->body.ptr.gmrId = vfb->user_handle;
1189         cmd->body.ptr.offset = 0;
1190
1191         blits = (void *)&cmd[1];
1192         blits_pos = 0;
1193         for (i = 0; i < num_units; i++) {
1194                 struct drm_vmw_rect *c = clips;
1195                 for (k = 0; k < num_clips; k++, c++) {
1196                         /* transform clip coords to crtc origin based coords */
1197                         int clip_x1 = c->x - units[i]->crtc.x;
1198                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1199                         int clip_y1 = c->y - units[i]->crtc.y;
1200                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1201                         int dest_x = c->x;
1202                         int dest_y = c->y;
1203
1204                         /* compensate for clipping, we negate
1205                          * a negative number and add that.
1206                          */
1207                         if (clip_x1 < 0)
1208                                 dest_x += -clip_x1;
1209                         if (clip_y1 < 0)
1210                                 dest_y += -clip_y1;
1211
1212                         /* clip */
1213                         clip_x1 = max(clip_x1, 0);
1214                         clip_y1 = max(clip_y1, 0);
1215                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1216                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1217
1218                         /* and cull any rects that misses the crtc */
1219                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1220                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1221                             clip_x2 <= 0 || clip_y2 <= 0)
1222                                 continue;
1223
1224                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1225                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1226                         blits[blits_pos].body.destOrigin.x = dest_x;
1227                         blits[blits_pos].body.destOrigin.y = dest_y;
1228
1229                         blits[blits_pos].body.srcRect.left = clip_x1;
1230                         blits[blits_pos].body.srcRect.top = clip_y1;
1231                         blits[blits_pos].body.srcRect.right = clip_x2;
1232                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1233                         blits_pos++;
1234                 }
1235         }
1236         /* reset size here and use calculated exact size from loops */
1237         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1238
1239         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1240                                   0, 0, user_fence_rep, NULL);
1241
1242         kfree(cmd);
1243
1244         return ret;
1245 }
1246
1247 int vmw_kms_init(struct vmw_private *dev_priv)
1248 {
1249         struct drm_device *dev = dev_priv->dev;
1250         int ret;
1251
1252         drm_mode_config_init(dev);
1253         dev->mode_config.funcs = &vmw_kms_funcs;
1254         dev->mode_config.min_width = 1;
1255         dev->mode_config.min_height = 1;
1256         /* assumed largest fb size */
1257         dev->mode_config.max_width = 8192;
1258         dev->mode_config.max_height = 8192;
1259
1260         ret = vmw_kms_stdu_init_display(dev_priv);
1261         if (ret) {
1262                 ret = vmw_kms_sou_init_display(dev_priv);
1263                 if (ret) /* Fallback */
1264                         ret = vmw_kms_ldu_init_display(dev_priv);
1265         }
1266
1267         return ret;
1268 }
1269
1270 int vmw_kms_close(struct vmw_private *dev_priv)
1271 {
1272         int ret;
1273
1274         /*
1275          * Docs says we should take the lock before calling this function
1276          * but since it destroys encoders and our destructor calls
1277          * drm_encoder_cleanup which takes the lock we deadlock.
1278          */
1279         drm_mode_config_cleanup(dev_priv->dev);
1280         if (dev_priv->active_display_unit == vmw_du_screen_object)
1281                 ret = vmw_kms_sou_close_display(dev_priv);
1282         else if (dev_priv->active_display_unit == vmw_du_screen_target)
1283                 ret = vmw_kms_stdu_close_display(dev_priv);
1284         else
1285                 ret = vmw_kms_ldu_close_display(dev_priv);
1286
1287         return ret;
1288 }
1289
1290 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1291                                 struct drm_file *file_priv)
1292 {
1293         struct drm_vmw_cursor_bypass_arg *arg = data;
1294         struct vmw_display_unit *du;
1295         struct drm_crtc *crtc;
1296         int ret = 0;
1297
1298
1299         mutex_lock(&dev->mode_config.mutex);
1300         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1301
1302                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1303                         du = vmw_crtc_to_du(crtc);
1304                         du->hotspot_x = arg->xhot;
1305                         du->hotspot_y = arg->yhot;
1306                 }
1307
1308                 mutex_unlock(&dev->mode_config.mutex);
1309                 return 0;
1310         }
1311
1312         crtc = drm_crtc_find(dev, arg->crtc_id);
1313         if (!crtc) {
1314                 ret = -ENOENT;
1315                 goto out;
1316         }
1317
1318         du = vmw_crtc_to_du(crtc);
1319
1320         du->hotspot_x = arg->xhot;
1321         du->hotspot_y = arg->yhot;
1322
1323 out:
1324         mutex_unlock(&dev->mode_config.mutex);
1325
1326         return ret;
1327 }
1328
1329 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1330                         unsigned width, unsigned height, unsigned pitch,
1331                         unsigned bpp, unsigned depth)
1332 {
1333         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1334                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1335         else if (vmw_fifo_have_pitchlock(vmw_priv))
1336                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1337         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1338         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1339         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1340
1341         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1342                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1343                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1344                 return -EINVAL;
1345         }
1346
1347         return 0;
1348 }
1349
1350 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1351 {
1352         struct vmw_vga_topology_state *save;
1353         uint32_t i;
1354
1355         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1356         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1357         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1358         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1359                 vmw_priv->vga_pitchlock =
1360                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1361         else if (vmw_fifo_have_pitchlock(vmw_priv))
1362                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1363                                                    SVGA_FIFO_PITCHLOCK);
1364
1365         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1366                 return 0;
1367
1368         vmw_priv->num_displays = vmw_read(vmw_priv,
1369                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1370
1371         if (vmw_priv->num_displays == 0)
1372                 vmw_priv->num_displays = 1;
1373
1374         for (i = 0; i < vmw_priv->num_displays; ++i) {
1375                 save = &vmw_priv->vga_save[i];
1376                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1377                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1378                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1379                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1380                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1381                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1382                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1383                 if (i == 0 && vmw_priv->num_displays == 1 &&
1384                     save->width == 0 && save->height == 0) {
1385
1386                         /*
1387                          * It should be fairly safe to assume that these
1388                          * values are uninitialized.
1389                          */
1390
1391                         save->width = vmw_priv->vga_width - save->pos_x;
1392                         save->height = vmw_priv->vga_height - save->pos_y;
1393                 }
1394         }
1395
1396         return 0;
1397 }
1398
1399 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1400 {
1401         struct vmw_vga_topology_state *save;
1402         uint32_t i;
1403
1404         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1405         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1406         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1407         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1408                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1409                           vmw_priv->vga_pitchlock);
1410         else if (vmw_fifo_have_pitchlock(vmw_priv))
1411                 iowrite32(vmw_priv->vga_pitchlock,
1412                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1413
1414         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1415                 return 0;
1416
1417         for (i = 0; i < vmw_priv->num_displays; ++i) {
1418                 save = &vmw_priv->vga_save[i];
1419                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1420                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1421                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1422                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1423                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1424                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1425                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1426         }
1427
1428         return 0;
1429 }
1430
1431 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1432                                 uint32_t pitch,
1433                                 uint32_t height)
1434 {
1435         return ((u64) pitch * (u64) height) < (u64)
1436                 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1437                  dev_priv->prim_bb_mem : dev_priv->vram_size);
1438 }
1439
1440
1441 /**
1442  * Function called by DRM code called with vbl_lock held.
1443  */
1444 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1445 {
1446         return 0;
1447 }
1448
1449 /**
1450  * Function called by DRM code called with vbl_lock held.
1451  */
1452 int vmw_enable_vblank(struct drm_device *dev, int crtc)
1453 {
1454         return -ENOSYS;
1455 }
1456
1457 /**
1458  * Function called by DRM code called with vbl_lock held.
1459  */
1460 void vmw_disable_vblank(struct drm_device *dev, int crtc)
1461 {
1462 }
1463
1464
1465 /*
1466  * Small shared kms functions.
1467  */
1468
1469 static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1470                          struct drm_vmw_rect *rects)
1471 {
1472         struct drm_device *dev = dev_priv->dev;
1473         struct vmw_display_unit *du;
1474         struct drm_connector *con;
1475
1476         mutex_lock(&dev->mode_config.mutex);
1477
1478 #if 0
1479         {
1480                 unsigned int i;
1481
1482                 DRM_INFO("%s: new layout ", __func__);
1483                 for (i = 0; i < num; i++)
1484                         DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1485                                  rects[i].w, rects[i].h);
1486                 DRM_INFO("\n");
1487         }
1488 #endif
1489
1490         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1491                 du = vmw_connector_to_du(con);
1492                 if (num > du->unit) {
1493                         du->pref_width = rects[du->unit].w;
1494                         du->pref_height = rects[du->unit].h;
1495                         du->pref_active = true;
1496                         du->gui_x = rects[du->unit].x;
1497                         du->gui_y = rects[du->unit].y;
1498                 } else {
1499                         du->pref_width = 800;
1500                         du->pref_height = 600;
1501                         du->pref_active = false;
1502                 }
1503                 con->status = vmw_du_connector_detect(con, true);
1504         }
1505
1506         mutex_unlock(&dev->mode_config.mutex);
1507
1508         return 0;
1509 }
1510
1511 void vmw_du_crtc_save(struct drm_crtc *crtc)
1512 {
1513 }
1514
1515 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1516 {
1517 }
1518
1519 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1520                            u16 *r, u16 *g, u16 *b,
1521                            uint32_t start, uint32_t size)
1522 {
1523         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1524         int i;
1525
1526         for (i = 0; i < size; i++) {
1527                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1528                           r[i], g[i], b[i]);
1529                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1530                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1531                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1532         }
1533 }
1534
1535 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1536 {
1537 }
1538
1539 void vmw_du_connector_save(struct drm_connector *connector)
1540 {
1541 }
1542
1543 void vmw_du_connector_restore(struct drm_connector *connector)
1544 {
1545 }
1546
1547 enum drm_connector_status
1548 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1549 {
1550         uint32_t num_displays;
1551         struct drm_device *dev = connector->dev;
1552         struct vmw_private *dev_priv = vmw_priv(dev);
1553         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1554
1555         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1556
1557         return ((vmw_connector_to_du(connector)->unit < num_displays &&
1558                  du->pref_active) ?
1559                 connector_status_connected : connector_status_disconnected);
1560 }
1561
1562 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1563         /* 640x480@60Hz */
1564         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1565                    752, 800, 0, 480, 489, 492, 525, 0,
1566                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1567         /* 800x600@60Hz */
1568         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1569                    968, 1056, 0, 600, 601, 605, 628, 0,
1570                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1571         /* 1024x768@60Hz */
1572         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1573                    1184, 1344, 0, 768, 771, 777, 806, 0,
1574                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1575         /* 1152x864@75Hz */
1576         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1577                    1344, 1600, 0, 864, 865, 868, 900, 0,
1578                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1579         /* 1280x768@60Hz */
1580         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1581                    1472, 1664, 0, 768, 771, 778, 798, 0,
1582                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1583         /* 1280x800@60Hz */
1584         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1585                    1480, 1680, 0, 800, 803, 809, 831, 0,
1586                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1587         /* 1280x960@60Hz */
1588         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1589                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1590                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1591         /* 1280x1024@60Hz */
1592         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1593                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1594                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1595         /* 1360x768@60Hz */
1596         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1597                    1536, 1792, 0, 768, 771, 777, 795, 0,
1598                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1599         /* 1440x1050@60Hz */
1600         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1601                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1602                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1603         /* 1440x900@60Hz */
1604         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1605                    1672, 1904, 0, 900, 903, 909, 934, 0,
1606                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1607         /* 1600x1200@60Hz */
1608         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1609                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1610                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1611         /* 1680x1050@60Hz */
1612         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1613                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1614                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1615         /* 1792x1344@60Hz */
1616         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1617                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1618                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1619         /* 1853x1392@60Hz */
1620         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1621                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1622                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1623         /* 1920x1200@60Hz */
1624         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1625                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1626                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1627         /* 1920x1440@60Hz */
1628         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1629                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1630                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1631         /* 2560x1600@60Hz */
1632         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1633                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1634                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1635         /* Terminate */
1636         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1637 };
1638
1639 /**
1640  * vmw_guess_mode_timing - Provide fake timings for a
1641  * 60Hz vrefresh mode.
1642  *
1643  * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
1644  * members filled in.
1645  */
1646 static void vmw_guess_mode_timing(struct drm_display_mode *mode)
1647 {
1648         mode->hsync_start = mode->hdisplay + 50;
1649         mode->hsync_end = mode->hsync_start + 50;
1650         mode->htotal = mode->hsync_end + 50;
1651
1652         mode->vsync_start = mode->vdisplay + 50;
1653         mode->vsync_end = mode->vsync_start + 50;
1654         mode->vtotal = mode->vsync_end + 50;
1655
1656         mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
1657         mode->vrefresh = drm_mode_vrefresh(mode);
1658 }
1659
1660
1661 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1662                                 uint32_t max_width, uint32_t max_height)
1663 {
1664         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1665         struct drm_device *dev = connector->dev;
1666         struct vmw_private *dev_priv = vmw_priv(dev);
1667         struct drm_display_mode *mode = NULL;
1668         struct drm_display_mode *bmode;
1669         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1670                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1671                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1672                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1673         };
1674         int i;
1675         u32 assumed_bpp = 2;
1676
1677         /*
1678          * If using screen objects, then assume 32-bpp because that's what the
1679          * SVGA device is assuming
1680          */
1681         if (dev_priv->active_display_unit == vmw_du_screen_object)
1682                 assumed_bpp = 4;
1683
1684         if (dev_priv->active_display_unit == vmw_du_screen_target) {
1685                 max_width  = min(max_width,  dev_priv->stdu_max_width);
1686                 max_height = min(max_height, dev_priv->stdu_max_height);
1687         }
1688
1689         /* Add preferred mode */
1690         mode = drm_mode_duplicate(dev, &prefmode);
1691         if (!mode)
1692                 return 0;
1693         mode->hdisplay = du->pref_width;
1694         mode->vdisplay = du->pref_height;
1695         vmw_guess_mode_timing(mode);
1696
1697         if (vmw_kms_validate_mode_vram(dev_priv,
1698                                         mode->hdisplay * assumed_bpp,
1699                                         mode->vdisplay)) {
1700                 drm_mode_probed_add(connector, mode);
1701         } else {
1702                 drm_mode_destroy(dev, mode);
1703                 mode = NULL;
1704         }
1705
1706         if (du->pref_mode) {
1707                 list_del_init(&du->pref_mode->head);
1708                 drm_mode_destroy(dev, du->pref_mode);
1709         }
1710
1711         /* mode might be null here, this is intended */
1712         du->pref_mode = mode;
1713
1714         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1715                 bmode = &vmw_kms_connector_builtin[i];
1716                 if (bmode->hdisplay > max_width ||
1717                     bmode->vdisplay > max_height)
1718                         continue;
1719
1720                 if (!vmw_kms_validate_mode_vram(dev_priv,
1721                                                 bmode->hdisplay * assumed_bpp,
1722                                                 bmode->vdisplay))
1723                         continue;
1724
1725                 mode = drm_mode_duplicate(dev, bmode);
1726                 if (!mode)
1727                         return 0;
1728                 mode->vrefresh = drm_mode_vrefresh(mode);
1729
1730                 drm_mode_probed_add(connector, mode);
1731         }
1732
1733         /* Move the prefered mode first, help apps pick the right mode. */
1734         if (du->pref_mode)
1735                 list_move(&du->pref_mode->head, &connector->probed_modes);
1736
1737         drm_mode_connector_list_update(connector, true);
1738
1739         return 1;
1740 }
1741
1742 int vmw_du_connector_set_property(struct drm_connector *connector,
1743                                   struct drm_property *property,
1744                                   uint64_t val)
1745 {
1746         return 0;
1747 }
1748
1749
1750 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1751                                 struct drm_file *file_priv)
1752 {
1753         struct vmw_private *dev_priv = vmw_priv(dev);
1754         struct drm_vmw_update_layout_arg *arg =
1755                 (struct drm_vmw_update_layout_arg *)data;
1756         void __user *user_rects;
1757         struct drm_vmw_rect *rects;
1758         unsigned rects_size;
1759         int ret;
1760         int i;
1761         struct drm_mode_config *mode_config = &dev->mode_config;
1762         struct drm_vmw_rect bounding_box = {0};
1763
1764         if (!arg->num_outputs) {
1765                 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1766                 vmw_du_update_layout(dev_priv, 1, &def_rect);
1767                 return 0;
1768         }
1769
1770         rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
1771         rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
1772                         GFP_KERNEL);
1773         if (unlikely(!rects))
1774                 return -ENOMEM;
1775
1776         user_rects = (void __user *)(unsigned long)arg->rects;
1777         ret = copy_from_user(rects, user_rects, rects_size);
1778         if (unlikely(ret != 0)) {
1779                 DRM_ERROR("Failed to get rects.\n");
1780                 ret = -EFAULT;
1781                 goto out_free;
1782         }
1783
1784         for (i = 0; i < arg->num_outputs; ++i) {
1785                 if (rects[i].x < 0 ||
1786                     rects[i].y < 0 ||
1787                     rects[i].x + rects[i].w > mode_config->max_width ||
1788                     rects[i].y + rects[i].h > mode_config->max_height) {
1789                         DRM_ERROR("Invalid GUI layout.\n");
1790                         ret = -EINVAL;
1791                         goto out_free;
1792                 }
1793
1794                 /*
1795                  * bounding_box.w and bunding_box.h are used as
1796                  * lower-right coordinates
1797                  */
1798                 if (rects[i].x + rects[i].w > bounding_box.w)
1799                         bounding_box.w = rects[i].x + rects[i].w;
1800
1801                 if (rects[i].y + rects[i].h > bounding_box.h)
1802                         bounding_box.h = rects[i].y + rects[i].h;
1803         }
1804
1805         /*
1806          * For Screen Target Display Unit, all the displays must fit
1807          * inside of maximum texture size.
1808          */
1809         if (dev_priv->active_display_unit == vmw_du_screen_target)
1810                 if (bounding_box.w > dev_priv->texture_max_width ||
1811                     bounding_box.h > dev_priv->texture_max_height) {
1812                         DRM_ERROR("Layout exceeds maximum texture size\n");
1813                         ret = -EINVAL;
1814                         goto out_free;
1815                 }
1816
1817
1818         vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
1819
1820 out_free:
1821         kfree(rects);
1822         return ret;
1823 }
1824
1825 /**
1826  * vmw_kms_helper_dirty - Helper to build commands and perform actions based
1827  * on a set of cliprects and a set of display units.
1828  *
1829  * @dev_priv: Pointer to a device private structure.
1830  * @framebuffer: Pointer to the framebuffer on which to perform the actions.
1831  * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
1832  * Cliprects are given in framebuffer coordinates.
1833  * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
1834  * be NULL. Cliprects are given in source coordinates.
1835  * @dest_x: X coordinate offset for the crtc / destination clip rects.
1836  * @dest_y: Y coordinate offset for the crtc / destination clip rects.
1837  * @num_clips: Number of cliprects in the @clips or @vclips array.
1838  * @increment: Integer with which to increment the clip counter when looping.
1839  * Used to skip a predetermined number of clip rects.
1840  * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
1841  */
1842 int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
1843                          struct vmw_framebuffer *framebuffer,
1844                          const struct drm_clip_rect *clips,
1845                          const struct drm_vmw_rect *vclips,
1846                          s32 dest_x, s32 dest_y,
1847                          int num_clips,
1848                          int increment,
1849                          struct vmw_kms_dirty *dirty)
1850 {
1851         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1852         struct drm_crtc *crtc;
1853         u32 num_units = 0;
1854         u32 i, k;
1855         int ret;
1856
1857         dirty->dev_priv = dev_priv;
1858
1859         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1860                 if (crtc->primary->fb != &framebuffer->base)
1861                         continue;
1862                 units[num_units++] = vmw_crtc_to_du(crtc);
1863         }
1864
1865         for (k = 0; k < num_units; k++) {
1866                 struct vmw_display_unit *unit = units[k];
1867                 s32 crtc_x = unit->crtc.x;
1868                 s32 crtc_y = unit->crtc.y;
1869                 s32 crtc_width = unit->crtc.mode.hdisplay;
1870                 s32 crtc_height = unit->crtc.mode.vdisplay;
1871                 const struct drm_clip_rect *clips_ptr = clips;
1872                 const struct drm_vmw_rect *vclips_ptr = vclips;
1873
1874                 dirty->unit = unit;
1875                 if (dirty->fifo_reserve_size > 0) {
1876                         dirty->cmd = vmw_fifo_reserve(dev_priv,
1877                                                       dirty->fifo_reserve_size);
1878                         if (!dirty->cmd) {
1879                                 DRM_ERROR("Couldn't reserve fifo space "
1880                                           "for dirty blits.\n");
1881                                 return ret;
1882                         }
1883                         memset(dirty->cmd, 0, dirty->fifo_reserve_size);
1884                 }
1885                 dirty->num_hits = 0;
1886                 for (i = 0; i < num_clips; i++, clips_ptr += increment,
1887                        vclips_ptr += increment) {
1888                         s32 clip_left;
1889                         s32 clip_top;
1890
1891                         /*
1892                          * Select clip array type. Note that integer type
1893                          * in @clips is unsigned short, whereas in @vclips
1894                          * it's 32-bit.
1895                          */
1896                         if (clips) {
1897                                 dirty->fb_x = (s32) clips_ptr->x1;
1898                                 dirty->fb_y = (s32) clips_ptr->y1;
1899                                 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
1900                                         crtc_x;
1901                                 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
1902                                         crtc_y;
1903                         } else {
1904                                 dirty->fb_x = vclips_ptr->x;
1905                                 dirty->fb_y = vclips_ptr->y;
1906                                 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
1907                                         dest_x - crtc_x;
1908                                 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
1909                                         dest_y - crtc_y;
1910                         }
1911
1912                         dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
1913                         dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
1914
1915                         /* Skip this clip if it's outside the crtc region */
1916                         if (dirty->unit_x1 >= crtc_width ||
1917                             dirty->unit_y1 >= crtc_height ||
1918                             dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
1919                                 continue;
1920
1921                         /* Clip right and bottom to crtc limits */
1922                         dirty->unit_x2 = min_t(s32, dirty->unit_x2,
1923                                                crtc_width);
1924                         dirty->unit_y2 = min_t(s32, dirty->unit_y2,
1925                                                crtc_height);
1926
1927                         /* Clip left and top to crtc limits */
1928                         clip_left = min_t(s32, dirty->unit_x1, 0);
1929                         clip_top = min_t(s32, dirty->unit_y1, 0);
1930                         dirty->unit_x1 -= clip_left;
1931                         dirty->unit_y1 -= clip_top;
1932                         dirty->fb_x -= clip_left;
1933                         dirty->fb_y -= clip_top;
1934
1935                         dirty->clip(dirty);
1936                 }
1937
1938                 dirty->fifo_commit(dirty);
1939         }
1940
1941         return 0;
1942 }
1943
1944 /**
1945  * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before
1946  * command submission.
1947  *
1948  * @dev_priv. Pointer to a device private structure.
1949  * @buf: The buffer object
1950  * @interruptible: Whether to perform waits as interruptible.
1951  * @validate_as_mob: Whether the buffer should be validated as a MOB. If false,
1952  * The buffer will be validated as a GMR. Already pinned buffers will not be
1953  * validated.
1954  *
1955  * Returns 0 on success, negative error code on failure, -ERESTARTSYS if
1956  * interrupted by a signal.
1957  */
1958 int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv,
1959                                   struct vmw_dma_buffer *buf,
1960                                   bool interruptible,
1961                                   bool validate_as_mob)
1962 {
1963         struct ttm_buffer_object *bo = &buf->base;
1964         int ret;
1965
1966         ttm_bo_reserve(bo, false, false, interruptible, 0);
1967         ret = vmw_validate_single_buffer(dev_priv, bo, interruptible,
1968                                          validate_as_mob);
1969         if (ret)
1970                 ttm_bo_unreserve(bo);
1971
1972         return ret;
1973 }
1974
1975 /**
1976  * vmw_kms_helper_buffer_revert - Undo the actions of
1977  * vmw_kms_helper_buffer_prepare.
1978  *
1979  * @res: Pointer to the buffer object.
1980  *
1981  * Helper to be used if an error forces the caller to undo the actions of
1982  * vmw_kms_helper_buffer_prepare.
1983  */
1984 void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf)
1985 {
1986         if (buf)
1987                 ttm_bo_unreserve(&buf->base);
1988 }
1989
1990 /**
1991  * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after
1992  * kms command submission.
1993  *
1994  * @dev_priv: Pointer to a device private structure.
1995  * @file_priv: Pointer to a struct drm_file representing the caller's
1996  * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely
1997  * if non-NULL, @user_fence_rep must be non-NULL.
1998  * @buf: The buffer object.
1999  * @out_fence:  Optional pointer to a fence pointer. If non-NULL, a
2000  * ref-counted fence pointer is returned here.
2001  * @user_fence_rep: Optional pointer to a user-space provided struct
2002  * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the
2003  * function copies fence data to user-space in a fail-safe manner.
2004  */
2005 void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
2006                                   struct drm_file *file_priv,
2007                                   struct vmw_dma_buffer *buf,
2008                                   struct vmw_fence_obj **out_fence,
2009                                   struct drm_vmw_fence_rep __user *
2010                                   user_fence_rep)
2011 {
2012         struct vmw_fence_obj *fence;
2013         uint32_t handle;
2014         int ret;
2015
2016         ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2017                                          file_priv ? &handle : NULL);
2018         if (buf)
2019                 vmw_fence_single_bo(&buf->base, fence);
2020         if (file_priv)
2021                 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2022                                             ret, user_fence_rep, fence,
2023                                             handle);
2024         if (out_fence)
2025                 *out_fence = fence;
2026         else
2027                 vmw_fence_obj_unreference(&fence);
2028
2029         vmw_kms_helper_buffer_revert(buf);
2030 }
2031
2032
2033 /**
2034  * vmw_kms_helper_resource_revert - Undo the actions of
2035  * vmw_kms_helper_resource_prepare.
2036  *
2037  * @res: Pointer to the resource. Typically a surface.
2038  *
2039  * Helper to be used if an error forces the caller to undo the actions of
2040  * vmw_kms_helper_resource_prepare.
2041  */
2042 void vmw_kms_helper_resource_revert(struct vmw_resource *res)
2043 {
2044         vmw_kms_helper_buffer_revert(res->backup);
2045         vmw_resource_unreserve(res, NULL, 0);
2046         mutex_unlock(&res->dev_priv->cmdbuf_mutex);
2047 }
2048
2049 /**
2050  * vmw_kms_helper_resource_prepare - Reserve and validate a resource before
2051  * command submission.
2052  *
2053  * @res: Pointer to the resource. Typically a surface.
2054  * @interruptible: Whether to perform waits as interruptible.
2055  *
2056  * Reserves and validates also the backup buffer if a guest-backed resource.
2057  * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
2058  * interrupted by a signal.
2059  */
2060 int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
2061                                     bool interruptible)
2062 {
2063         int ret = 0;
2064
2065         if (interruptible)
2066                 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex);
2067         else
2068                 mutex_lock(&res->dev_priv->cmdbuf_mutex);
2069
2070         if (unlikely(ret != 0))
2071                 return -ERESTARTSYS;
2072
2073         ret = vmw_resource_reserve(res, interruptible, false);
2074         if (ret)
2075                 goto out_unlock;
2076
2077         if (res->backup) {
2078                 ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup,
2079                                                     interruptible,
2080                                                     res->dev_priv->has_mob);
2081                 if (ret)
2082                         goto out_unreserve;
2083         }
2084         ret = vmw_resource_validate(res);
2085         if (ret)
2086                 goto out_revert;
2087         return 0;
2088
2089 out_revert:
2090         vmw_kms_helper_buffer_revert(res->backup);
2091 out_unreserve:
2092         vmw_resource_unreserve(res, NULL, 0);
2093 out_unlock:
2094         mutex_unlock(&res->dev_priv->cmdbuf_mutex);
2095         return ret;
2096 }
2097
2098 /**
2099  * vmw_kms_helper_resource_finish - Unreserve and fence a resource after
2100  * kms command submission.
2101  *
2102  * @res: Pointer to the resource. Typically a surface.
2103  * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
2104  * ref-counted fence pointer is returned here.
2105  */
2106 void vmw_kms_helper_resource_finish(struct vmw_resource *res,
2107                              struct vmw_fence_obj **out_fence)
2108 {
2109         if (res->backup || out_fence)
2110                 vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup,
2111                                              out_fence, NULL);
2112
2113         vmw_resource_unreserve(res, NULL, 0);
2114         mutex_unlock(&res->dev_priv->cmdbuf_mutex);
2115 }