drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "vmwgfx_kms.h"
  29
  30
  31 /* Might need a hrtimer here? */
  32 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
  33
  34 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
  35 {
  36         if (du->cursor_surface)
  37                 vmw_surface_unreference(&du->cursor_surface);
  38         if (du->cursor_dmabuf)
  39                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
  40         drm_crtc_cleanup(&du->crtc);
  41         drm_encoder_cleanup(&du->encoder);
  42         drm_connector_cleanup(&du->connector);
  43 }
  44
  45 /*
  46  * Display Unit Cursor functions
  47  */
  48
  49 int vmw_cursor_update_image(struct vmw_private *dev_priv,
  50                             u32 *image, u32 width, u32 height,
  51                             u32 hotspotX, u32 hotspotY)
  52 {
  53         struct {
  54                 u32 cmd;
  55                 SVGAFifoCmdDefineAlphaCursor cursor;
  56         } *cmd;
  57         u32 image_size = width * height * 4;
  58         u32 cmd_size = sizeof(*cmd) + image_size;
  59
  60         if (!image)
  61                 return -EINVAL;
  62
  63         cmd = vmw_fifo_reserve(dev_priv, cmd_size);
  64         if (unlikely(cmd == NULL)) {
  65                 DRM_ERROR("Fifo reserve failed.\n");
  66                 return -ENOMEM;
  67         }
  68
  69         memset(cmd, 0, sizeof(*cmd));
  70
  71         memcpy(&cmd[1], image, image_size);
  72
  73         cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
  74         cmd->cursor.id = cpu_to_le32(0);
  75         cmd->cursor.width = cpu_to_le32(width);
  76         cmd->cursor.height = cpu_to_le32(height);
  77         cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
  78         cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
  79
  80         vmw_fifo_commit(dev_priv, cmd_size);
  81
  82         return 0;
  83 }
  84
  85 void vmw_cursor_update_position(struct vmw_private *dev_priv,
  86                                 bool show, int x, int y)
  87 {
  88         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
  89         uint32_t count;
  90
  91         iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
  92         iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
  93         iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
  94         count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
  95         iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
  96 }
  97
  98 int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
  99                            uint32_t handle, uint32_t width, uint32_t height)
 100 {
 101         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 102         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 103         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 104         struct vmw_surface *surface = NULL;
 105         struct vmw_dma_buffer *dmabuf = NULL;
 106         int ret;
 107
 108         if (handle) {
 109                 ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
 110                                                      handle, &surface);
 111                 if (!ret) {
 112                         if (!surface->snooper.image) {
 113                                 DRM_ERROR("surface not suitable for cursor\n");
 114                                 return -EINVAL;
 115                         }
 116                 } else {
 117                         ret = vmw_user_dmabuf_lookup(tfile,
 118                                                      handle, &dmabuf);
 119                         if (ret) {
 120                                 DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
 121                                 return -EINVAL;
 122                         }
 123                 }
 124         }
 125
 126         /* takedown old cursor */
 127         if (du->cursor_surface) {
 128                 du->cursor_surface->snooper.crtc = NULL;
 129                 vmw_surface_unreference(&du->cursor_surface);
 130         }
 131         if (du->cursor_dmabuf)
 132                 vmw_dmabuf_unreference(&du->cursor_dmabuf);
 133
 134         /* setup new image */
 135         if (surface) {
 136                 /* vmw_user_surface_lookup takes one reference */
 137                 du->cursor_surface = surface;
 138
 139                 du->cursor_surface->snooper.crtc = crtc;
 140                 du->cursor_age = du->cursor_surface->snooper.age;
 141                 vmw_cursor_update_image(dev_priv, surface->snooper.image,
 142                                         64, 64, du->hotspot_x, du->hotspot_y);
 143         } else if (dmabuf) {
 144                 struct ttm_bo_kmap_obj map;
 145                 unsigned long kmap_offset;
 146                 unsigned long kmap_num;
 147                 void *virtual;
 148                 bool dummy;
 149
 150                 /* vmw_user_surface_lookup takes one reference */
 151                 du->cursor_dmabuf = dmabuf;
 152
 153                 kmap_offset = 0;
 154                 kmap_num = (64*64*4) >> PAGE_SHIFT;
 155
 156                 ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
 157                 if (unlikely(ret != 0)) {
 158                         DRM_ERROR("reserve failed\n");
 159                         return -EINVAL;
 160                 }
 161
 162                 ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
 163                 if (unlikely(ret != 0))
 164                         goto err_unreserve;
 165
 166                 virtual = ttm_kmap_obj_virtual(&map, &dummy);
 167                 vmw_cursor_update_image(dev_priv, virtual, 64, 64,
 168                                         du->hotspot_x, du->hotspot_y);
 169
 170                 ttm_bo_kunmap(&map);
 171 err_unreserve:
 172                 ttm_bo_unreserve(&dmabuf->base);
 173
 174         } else {
 175                 vmw_cursor_update_position(dev_priv, false, 0, 0);
 176                 return 0;
 177         }
 178
 179         vmw_cursor_update_position(dev_priv, true, du->cursor_x, du->cursor_y);
 180
 181         return 0;
 182 }
 183
 184 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 185 {
 186         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 187         struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
 188         bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
 189
 190         du->cursor_x = x + crtc->x;
 191         du->cursor_y = y + crtc->y;
 192
 193         vmw_cursor_update_position(dev_priv, shown,
 194                                    du->cursor_x, du->cursor_y);
 195
 196         return 0;
 197 }
 198
 199 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 200                           struct ttm_object_file *tfile,
 201                           struct ttm_buffer_object *bo,
 202                           SVGA3dCmdHeader *header)
 203 {
 204         struct ttm_bo_kmap_obj map;
 205         unsigned long kmap_offset;
 206         unsigned long kmap_num;
 207         SVGA3dCopyBox *box;
 208         unsigned box_count;
 209         void *virtual;
 210         bool dummy;
 211         struct vmw_dma_cmd {
 212                 SVGA3dCmdHeader header;
 213                 SVGA3dCmdSurfaceDMA dma;
 214         } *cmd;
 215         int ret;
 216
 217         cmd = container_of(header, struct vmw_dma_cmd, header);
 218
 219         /* No snooper installed */
 220         if (!srf->snooper.image)
 221                 return;
 222
 223         if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
 224                 DRM_ERROR("face and mipmap for cursors should never != 0\n");
 225                 return;
 226         }
 227
 228         if (cmd->header.size < 64) {
 229                 DRM_ERROR("at least one full copy box must be given\n");
 230                 return;
 231         }
 232
 233         box = (SVGA3dCopyBox *)&cmd[1];
 234         box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
 235                         sizeof(SVGA3dCopyBox);
 236
 237         if (cmd->dma.guest.pitch != (64 * 4) ||
 238             cmd->dma.guest.ptr.offset % PAGE_SIZE ||
 239             box->x != 0    || box->y != 0    || box->z != 0    ||
 240             box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
 241             box->w != 64   || box->h != 64   || box->d != 1    ||
 242             box_count != 1) {
 243                 /* TODO handle none page aligned offsets */
 244                 /* TODO handle partial uploads and pitch != 256 */
 245                 /* TODO handle more then one copy (size != 64) */
 246                 DRM_ERROR("lazy programmer, can't handle weird stuff\n");
 247                 return;
 248         }
 249
 250         kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
 251         kmap_num = (64*64*4) >> PAGE_SHIFT;
 252
 253         ret = ttm_bo_reserve(bo, true, false, false, 0);
 254         if (unlikely(ret != 0)) {
 255                 DRM_ERROR("reserve failed\n");
 256                 return;
 257         }
 258
 259         ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
 260         if (unlikely(ret != 0))
 261                 goto err_unreserve;
 262
 263         virtual = ttm_kmap_obj_virtual(&map, &dummy);
 264
 265         memcpy(srf->snooper.image, virtual, 64*64*4);
 266         srf->snooper.age++;
 267
 268         /* we can't call this function from this function since execbuf has
 269          * reserved fifo space.
 270          *
 271          * if (srf->snooper.crtc)
 272          *      vmw_ldu_crtc_cursor_update_image(dev_priv,
 273          *                                       srf->snooper.image, 64, 64,
 274          *                                       du->hotspot_x, du->hotspot_y);
 275          */
 276
 277         ttm_bo_kunmap(&map);
 278 err_unreserve:
 279         ttm_bo_unreserve(bo);
 280 }
 281
 282 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
 283 {
 284         struct drm_device *dev = dev_priv->dev;
 285         struct vmw_display_unit *du;
 286         struct drm_crtc *crtc;
 287
 288         mutex_lock(&dev->mode_config.mutex);
 289
 290         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 291                 du = vmw_crtc_to_du(crtc);
 292                 if (!du->cursor_surface ||
 293                     du->cursor_age == du->cursor_surface->snooper.age)
 294                         continue;
 295
 296                 du->cursor_age = du->cursor_surface->snooper.age;
 297                 vmw_cursor_update_image(dev_priv,
 298                                         du->cursor_surface->snooper.image,
 299                                         64, 64, du->hotspot_x, du->hotspot_y);
 300         }
 301
 302         mutex_unlock(&dev->mode_config.mutex);
 303 }
 304
 305 /*
 306  * Generic framebuffer code
 307  */
 308
 309 int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
 310                                   struct drm_file *file_priv,
 311                                   unsigned int *handle)
 312 {
 313         if (handle)
 314                 handle = 0;
 315
 316         return 0;
 317 }
 318
 319 /*
 320  * Surface framebuffer code
 321  */
 322
 323 #define vmw_framebuffer_to_vfbs(x) \
 324         container_of(x, struct vmw_framebuffer_surface, base.base)
 325
 326 struct vmw_framebuffer_surface {
 327         struct vmw_framebuffer base;
 328         struct vmw_surface *surface;
 329         struct vmw_dma_buffer *buffer;
 330         struct list_head head;
 331         struct drm_master *master;
 332 };
 333
 334 void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
 335 {
 336         struct vmw_framebuffer_surface *vfbs =
 337                 vmw_framebuffer_to_vfbs(framebuffer);
 338         struct vmw_master *vmaster = vmw_master(vfbs->master);
 339
 340
 341         mutex_lock(&vmaster->fb_surf_mutex);
 342         list_del(&vfbs->head);
 343         mutex_unlock(&vmaster->fb_surf_mutex);
 344
 345         drm_master_put(&vfbs->master);
 346         drm_framebuffer_cleanup(framebuffer);
 347         vmw_surface_unreference(&vfbs->surface);
 348         ttm_base_object_unref(&vfbs->base.user_obj);
 349
 350         kfree(vfbs);
 351 }
 352
 353 static int do_surface_dirty_sou(struct vmw_private *dev_priv,
 354                                 struct drm_file *file_priv,
 355                                 struct vmw_framebuffer *framebuffer,
 356                                 struct vmw_surface *surf,
 357                                 unsigned flags, unsigned color,
 358                                 struct drm_clip_rect *clips,
 359                                 unsigned num_clips, int inc)
 360 {
 361         int left = clips->x2, right = clips->x1;
 362         int top = clips->y2, bottom = clips->y1;
 363         size_t fifo_size;
 364         int i, ret;
 365
 366         struct {
 367                 SVGA3dCmdHeader header;
 368                 SVGA3dCmdBlitSurfaceToScreen body;
 369         } *cmd;
 370
 371
 372         fifo_size = sizeof(*cmd);
 373         cmd = kzalloc(fifo_size, GFP_KERNEL);
 374         if (unlikely(cmd == NULL)) {
 375                 DRM_ERROR("Temporary fifo memory alloc failed.\n");
 376                 return -ENOMEM;
 377         }
 378
 379         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
 380         cmd->header.size = cpu_to_le32(sizeof(cmd->body));
 381
 382         cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
 383         cmd->body.destScreenId = SVGA_ID_INVALID; /* virtual coords */
 384
 385         for (i = 0; i < num_clips; i++, clips += inc) {
 386                 left = min_t(int, left, (int)clips->x1);
 387                 right = max_t(int, right, (int)clips->x2);
 388                 top = min_t(int, top, (int)clips->y1);
 389                 bottom = max_t(int, bottom, (int)clips->y2);
 390         }
 391
 392         cmd->body.srcRect.left = left;
 393         cmd->body.srcRect.right = right;
 394         cmd->body.srcRect.top = top;
 395         cmd->body.srcRect.bottom = bottom;
 396
 397         cmd->body.destRect.left = left;
 398         cmd->body.destRect.right = right;
 399         cmd->body.destRect.top = top;
 400         cmd->body.destRect.bottom = bottom;
 401
 402         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
 403                                   0, NULL);
 404         kfree(cmd);
 405
 406         return ret;
 407 }
 408
 409 int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
 410                                   struct drm_file *file_priv,
 411                                   unsigned flags, unsigned color,
 412                                   struct drm_clip_rect *clips,
 413                                   unsigned num_clips)
 414 {
 415         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 416         struct vmw_master *vmaster = vmw_master(file_priv->master);
 417         struct vmw_framebuffer_surface *vfbs =
 418                 vmw_framebuffer_to_vfbs(framebuffer);
 419         struct vmw_surface *surf = vfbs->surface;
 420         struct drm_clip_rect norect;
 421         int ret, inc = 1;
 422
 423         if (unlikely(vfbs->master != file_priv->master))
 424                 return -EINVAL;
 425
 426         /* Require ScreenObject support for 3D */
 427         if (!dev_priv->sou_priv)
 428                 return -EINVAL;
 429
 430         ret = ttm_read_lock(&vmaster->lock, true);
 431         if (unlikely(ret != 0))
 432                 return ret;
 433
 434         if (!num_clips) {
 435                 num_clips = 1;
 436                 clips = &norect;
 437                 norect.x1 = norect.y1 = 0;
 438                 norect.x2 = framebuffer->width;
 439                 norect.y2 = framebuffer->height;
 440         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 441                 num_clips /= 2;
 442                 inc = 2; /* skip source rects */
 443         }
 444
 445         ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base, surf,
 446                                    flags, color,
 447                                    clips, num_clips, inc);
 448
 449         ttm_read_unlock(&vmaster->lock);
 450         return 0;
 451 }
 452
 453 static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
 454         .destroy = vmw_framebuffer_surface_destroy,
 455         .dirty = vmw_framebuffer_surface_dirty,
 456         .create_handle = vmw_framebuffer_create_handle,
 457 };
 458
 459 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
 460                                            struct drm_file *file_priv,
 461                                            struct vmw_surface *surface,
 462                                            struct vmw_framebuffer **out,
 463                                            const struct drm_mode_fb_cmd
 464                                            *mode_cmd)
 465
 466 {
 467         struct drm_device *dev = dev_priv->dev;
 468         struct vmw_framebuffer_surface *vfbs;
 469         enum SVGA3dSurfaceFormat format;
 470         struct vmw_master *vmaster = vmw_master(file_priv->master);
 471         int ret;
 472
 473         /* 3D is only supported on HWv8 hosts which supports screen objects */
 474         if (!dev_priv->sou_priv)
 475                 return -ENOSYS;
 476
 477         /*
 478          * Sanity checks.
 479          */
 480
 481         if (unlikely(surface->mip_levels[0] != 1 ||
 482                      surface->num_sizes != 1 ||
 483                      surface->sizes[0].width < mode_cmd->width ||
 484                      surface->sizes[0].height < mode_cmd->height ||
 485                      surface->sizes[0].depth != 1)) {
 486                 DRM_ERROR("Incompatible surface dimensions "
 487                           "for requested mode.\n");
 488                 return -EINVAL;
 489         }
 490
 491         switch (mode_cmd->depth) {
 492         case 32:
 493                 format = SVGA3D_A8R8G8B8;
 494                 break;
 495         case 24:
 496                 format = SVGA3D_X8R8G8B8;
 497                 break;
 498         case 16:
 499                 format = SVGA3D_R5G6B5;
 500                 break;
 501         case 15:
 502                 format = SVGA3D_A1R5G5B5;
 503                 break;
 504         case 8:
 505                 format = SVGA3D_LUMINANCE8;
 506                 break;
 507         default:
 508                 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 509                 return -EINVAL;
 510         }
 511
 512         if (unlikely(format != surface->format)) {
 513                 DRM_ERROR("Invalid surface format for requested mode.\n");
 514                 return -EINVAL;
 515         }
 516
 517         vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
 518         if (!vfbs) {
 519                 ret = -ENOMEM;
 520                 goto out_err1;
 521         }
 522
 523         ret = drm_framebuffer_init(dev, &vfbs->base.base,
 524                                    &vmw_framebuffer_surface_funcs);
 525         if (ret)
 526                 goto out_err2;
 527
 528         if (!vmw_surface_reference(surface)) {
 529                 DRM_ERROR("failed to reference surface %p\n", surface);
 530                 goto out_err3;
 531         }
 532
 533         /* XXX get the first 3 from the surface info */
 534         vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
 535         vfbs->base.base.pitch = mode_cmd->pitch;
 536         vfbs->base.base.depth = mode_cmd->depth;
 537         vfbs->base.base.width = mode_cmd->width;
 538         vfbs->base.base.height = mode_cmd->height;
 539         vfbs->surface = surface;
 540         vfbs->base.user_handle = mode_cmd->handle;
 541         vfbs->master = drm_master_get(file_priv->master);
 542
 543         mutex_lock(&vmaster->fb_surf_mutex);
 544         list_add_tail(&vfbs->head, &vmaster->fb_surf);
 545         mutex_unlock(&vmaster->fb_surf_mutex);
 546
 547         *out = &vfbs->base;
 548
 549         return 0;
 550
 551 out_err3:
 552         drm_framebuffer_cleanup(&vfbs->base.base);
 553 out_err2:
 554         kfree(vfbs);
 555 out_err1:
 556         return ret;
 557 }
 558
 559 /*
 560  * Dmabuf framebuffer code
 561  */
 562
 563 #define vmw_framebuffer_to_vfbd(x) \
 564         container_of(x, struct vmw_framebuffer_dmabuf, base.base)
 565
 566 struct vmw_framebuffer_dmabuf {
 567         struct vmw_framebuffer base;
 568         struct vmw_dma_buffer *buffer;
 569 };
 570
 571 void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
 572 {
 573         struct vmw_framebuffer_dmabuf *vfbd =
 574                 vmw_framebuffer_to_vfbd(framebuffer);
 575
 576         drm_framebuffer_cleanup(framebuffer);
 577         vmw_dmabuf_unreference(&vfbd->buffer);
 578         ttm_base_object_unref(&vfbd->base.user_obj);
 579
 580         kfree(vfbd);
 581 }
 582
 583 static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
 584                                struct vmw_framebuffer *framebuffer,
 585                                struct vmw_dma_buffer *buffer,
 586                                unsigned flags, unsigned color,
 587                                struct drm_clip_rect *clips,
 588                                unsigned num_clips, int increment)
 589 {
 590         size_t fifo_size;
 591         int i;
 592
 593         struct {
 594                 uint32_t header;
 595                 SVGAFifoCmdUpdate body;
 596         } *cmd;
 597
 598         fifo_size = sizeof(*cmd) * num_clips;
 599         cmd = vmw_fifo_reserve(dev_priv, fifo_size);
 600         if (unlikely(cmd == NULL)) {
 601                 DRM_ERROR("Fifo reserve failed.\n");
 602                 return -ENOMEM;
 603         }
 604
 605         memset(cmd, 0, fifo_size);
 606         for (i = 0; i < num_clips; i++, clips += increment) {
 607                 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
 608                 cmd[i].body.x = cpu_to_le32(clips->x1);
 609                 cmd[i].body.y = cpu_to_le32(clips->y1);
 610                 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
 611                 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
 612         }
 613
 614         vmw_fifo_commit(dev_priv, fifo_size);
 615         return 0;
 616 }
 617
 618 static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
 619                                struct vmw_private *dev_priv,
 620                                struct vmw_framebuffer *framebuffer,
 621                                struct vmw_dma_buffer *buffer,
 622                                unsigned flags, unsigned color,
 623                                struct drm_clip_rect *clips,
 624                                unsigned num_clips, int increment)
 625 {
 626         size_t fifo_size;
 627         int i, ret;
 628
 629         struct {
 630                 uint32_t header;
 631                 SVGAFifoCmdDefineGMRFB body;
 632         } *cmd;
 633         struct {
 634                 uint32_t header;
 635                 SVGAFifoCmdBlitGMRFBToScreen body;
 636         } *blits;
 637
 638         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips;
 639         cmd = kmalloc(fifo_size, GFP_KERNEL);
 640         if (unlikely(cmd == NULL)) {
 641                 DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
 642                 return -ENOMEM;
 643         }
 644
 645         memset(cmd, 0, fifo_size);
 646         cmd->header = SVGA_CMD_DEFINE_GMRFB;
 647         cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
 648         cmd->body.format.colorDepth = framebuffer->base.depth;
 649         cmd->body.format.reserved = 0;
 650         cmd->body.bytesPerLine = framebuffer->base.pitch;
 651         cmd->body.ptr.gmrId = framebuffer->user_handle;
 652         cmd->body.ptr.offset = 0;
 653
 654         blits = (void *)&cmd[1];
 655         for (i = 0; i < num_clips; i++, clips += increment) {
 656                 blits[i].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
 657                 blits[i].body.srcOrigin.x = clips->x1;
 658                 blits[i].body.srcOrigin.y = clips->y1;
 659                 blits[i].body.destRect.left = clips->x1;
 660                 blits[i].body.destRect.top = clips->y1;
 661                 blits[i].body.destRect.right = clips->x2;
 662                 blits[i].body.destRect.bottom = clips->y2;
 663         }
 664
 665         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
 666                                   fifo_size, 0, NULL);
 667
 668         kfree(cmd);
 669
 670         return ret;
 671 }
 672
 673 int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
 674                                  struct drm_file *file_priv,
 675                                  unsigned flags, unsigned color,
 676                                  struct drm_clip_rect *clips,
 677                                  unsigned num_clips)
 678 {
 679         struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
 680         struct vmw_master *vmaster = vmw_master(file_priv->master);
 681         struct vmw_framebuffer_dmabuf *vfbd =
 682                 vmw_framebuffer_to_vfbd(framebuffer);
 683         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
 684         struct drm_clip_rect norect;
 685         int ret, increment = 1;
 686
 687         ret = ttm_read_lock(&vmaster->lock, true);
 688         if (unlikely(ret != 0))
 689                 return ret;
 690
 691         if (!num_clips) {
 692                 num_clips = 1;
 693                 clips = &norect;
 694                 norect.x1 = norect.y1 = 0;
 695                 norect.x2 = framebuffer->width;
 696                 norect.y2 = framebuffer->height;
 697         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 698                 num_clips /= 2;
 699                 increment = 2;
 700         }
 701
 702         if (dev_priv->ldu_priv) {
 703                 ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base, dmabuf,
 704                                           flags, color,
 705                                           clips, num_clips, increment);
 706         } else {
 707                 ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
 708                                           dmabuf, flags, color,
 709                                           clips, num_clips, increment);
 710         }
 711
 712         ttm_read_unlock(&vmaster->lock);
 713         return ret;
 714 }
 715
 716 static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
 717         .destroy = vmw_framebuffer_dmabuf_destroy,
 718         .dirty = vmw_framebuffer_dmabuf_dirty,
 719         .create_handle = vmw_framebuffer_create_handle,
 720 };
 721
 722 /**
 723  * Pin the dmabuffer to the start of vram.
 724  */
 725 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
 726 {
 727         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 728         struct vmw_framebuffer_dmabuf *vfbd =
 729                 vmw_framebuffer_to_vfbd(&vfb->base);
 730         int ret;
 731
 732         /* This code should not be used with screen objects */
 733         BUG_ON(dev_priv->sou_priv);
 734
 735         vmw_overlay_pause_all(dev_priv);
 736
 737         ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
 738
 739         vmw_overlay_resume_all(dev_priv);
 740
 741         WARN_ON(ret != 0);
 742
 743         return 0;
 744 }
 745
 746 static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
 747 {
 748         struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
 749         struct vmw_framebuffer_dmabuf *vfbd =
 750                 vmw_framebuffer_to_vfbd(&vfb->base);
 751
 752         if (!vfbd->buffer) {
 753                 WARN_ON(!vfbd->buffer);
 754                 return 0;
 755         }
 756
 757         return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
 758 }
 759
 760 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
 761                                           struct vmw_dma_buffer *dmabuf,
 762                                           struct vmw_framebuffer **out,
 763                                           const struct drm_mode_fb_cmd
 764                                           *mode_cmd)
 765
 766 {
 767         struct drm_device *dev = dev_priv->dev;
 768         struct vmw_framebuffer_dmabuf *vfbd;
 769         unsigned int requested_size;
 770         int ret;
 771
 772         requested_size = mode_cmd->height * mode_cmd->pitch;
 773         if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
 774                 DRM_ERROR("Screen buffer object size is too small "
 775                           "for requested mode.\n");
 776                 return -EINVAL;
 777         }
 778
 779         /* Limited framebuffer color depth support for screen objects */
 780         if (dev_priv->sou_priv) {
 781                 switch (mode_cmd->depth) {
 782                 case 32:
 783                 case 24:
 784                         /* Only support 32 bpp for 32 and 24 depth fbs */
 785                         if (mode_cmd->bpp == 32)
 786                                 break;
 787
 788                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
 789                                   mode_cmd->depth, mode_cmd->bpp);
 790                         return -EINVAL;
 791                 case 16:
 792                 case 15:
 793                         /* Only support 16 bpp for 16 and 15 depth fbs */
 794                         if (mode_cmd->bpp == 16)
 795                                 break;
 796
 797                         DRM_ERROR("Invalid color depth/bbp: %d %d\n",
 798                                   mode_cmd->depth, mode_cmd->bpp);
 799                         return -EINVAL;
 800                 default:
 801                         DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
 802                         return -EINVAL;
 803                 }
 804         }
 805
 806         vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
 807         if (!vfbd) {
 808                 ret = -ENOMEM;
 809                 goto out_err1;
 810         }
 811
 812         ret = drm_framebuffer_init(dev, &vfbd->base.base,
 813                                    &vmw_framebuffer_dmabuf_funcs);
 814         if (ret)
 815                 goto out_err2;
 816
 817         if (!vmw_dmabuf_reference(dmabuf)) {
 818                 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
 819                 goto out_err3;
 820         }
 821
 822         vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
 823         vfbd->base.base.pitch = mode_cmd->pitch;
 824         vfbd->base.base.depth = mode_cmd->depth;
 825         vfbd->base.base.width = mode_cmd->width;
 826         vfbd->base.base.height = mode_cmd->height;
 827         if (!dev_priv->sou_priv) {
 828                 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
 829                 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
 830         }
 831         vfbd->base.dmabuf = true;
 832         vfbd->buffer = dmabuf;
 833         vfbd->base.user_handle = mode_cmd->handle;
 834         *out = &vfbd->base;
 835
 836         return 0;
 837
 838 out_err3:
 839         drm_framebuffer_cleanup(&vfbd->base.base);
 840 out_err2:
 841         kfree(vfbd);
 842 out_err1:
 843         return ret;
 844 }
 845
 846 /*
 847  * Generic Kernel modesetting functions
 848  */
 849
 850 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 851                                                  struct drm_file *file_priv,
 852                                                  struct drm_mode_fb_cmd *mode_cmd)
 853 {
 854         struct vmw_private *dev_priv = vmw_priv(dev);
 855         struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 856         struct vmw_framebuffer *vfb = NULL;
 857         struct vmw_surface *surface = NULL;
 858         struct vmw_dma_buffer *bo = NULL;
 859         struct ttm_base_object *user_obj;
 860         u64 required_size;
 861         int ret;
 862
 863         /**
 864          * This code should be conditioned on Screen Objects not being used.
 865          * If screen objects are used, we can allocate a GMR to hold the
 866          * requested framebuffer.
 867          */
 868
 869         required_size = mode_cmd->pitch * mode_cmd->height;
 870         if (unlikely(required_size > (u64) dev_priv->vram_size)) {
 871                 DRM_ERROR("VRAM size is too small for requested mode.\n");
 872                 return NULL;
 873         }
 874
 875         /*
 876          * Take a reference on the user object of the resource
 877          * backing the kms fb. This ensures that user-space handle
 878          * lookups on that resource will always work as long as
 879          * it's registered with a kms framebuffer. This is important,
 880          * since vmw_execbuf_process identifies resources in the
 881          * command stream using user-space handles.
 882          */
 883
 884         user_obj = ttm_base_object_lookup(tfile, mode_cmd->handle);
 885         if (unlikely(user_obj == NULL)) {
 886                 DRM_ERROR("Could not locate requested kms frame buffer.\n");
 887                 return ERR_PTR(-ENOENT);
 888         }
 889
 890         /**
 891          * End conditioned code.
 892          */
 893
 894         ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
 895                                              mode_cmd->handle, &surface);
 896         if (ret)
 897                 goto try_dmabuf;
 898
 899         if (!surface->scanout)
 900                 goto err_not_scanout;
 901
 902         ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, surface,
 903                                               &vfb, mode_cmd);
 904
 905         /* vmw_user_surface_lookup takes one ref so does new_fb */
 906         vmw_surface_unreference(&surface);
 907
 908         if (ret) {
 909                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
 910                 ttm_base_object_unref(&user_obj);
 911                 return ERR_PTR(ret);
 912         } else
 913                 vfb->user_obj = user_obj;
 914         return &vfb->base;
 915
 916 try_dmabuf:
 917         DRM_INFO("%s: trying buffer\n", __func__);
 918
 919         ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo);
 920         if (ret) {
 921                 DRM_ERROR("failed to find buffer: %i\n", ret);
 922                 return ERR_PTR(-ENOENT);
 923         }
 924
 925         ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
 926                                              mode_cmd);
 927
 928         /* vmw_user_dmabuf_lookup takes one ref so does new_fb */
 929         vmw_dmabuf_unreference(&bo);
 930
 931         if (ret) {
 932                 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
 933                 ttm_base_object_unref(&user_obj);
 934                 return ERR_PTR(ret);
 935         } else
 936                 vfb->user_obj = user_obj;
 937
 938         return &vfb->base;
 939
 940 err_not_scanout:
 941         DRM_ERROR("surface not marked as scanout\n");
 942         /* vmw_user_surface_lookup takes one ref */
 943         vmw_surface_unreference(&surface);
 944         ttm_base_object_unref(&user_obj);
 945
 946         return ERR_PTR(-EINVAL);
 947 }
 948
 949 static struct drm_mode_config_funcs vmw_kms_funcs = {
 950         .fb_create = vmw_kms_fb_create,
 951 };
 952
 953 int vmw_kms_present(struct vmw_private *dev_priv,
 954                     struct drm_file *file_priv,
 955                     struct vmw_framebuffer *vfb,
 956                     struct vmw_surface *surface,
 957                     uint32_t sid,
 958                     int32_t destX, int32_t destY,
 959                     struct drm_vmw_rect *clips,
 960                     uint32_t num_clips)
 961 {
 962         size_t fifo_size;
 963         int i, ret;
 964
 965         struct {
 966                 SVGA3dCmdHeader header;
 967                 SVGA3dCmdBlitSurfaceToScreen body;
 968         } *cmd;
 969         SVGASignedRect *blits;
 970
 971         BUG_ON(surface == NULL);
 972         BUG_ON(!clips || !num_clips);
 973
 974         fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
 975         cmd = kmalloc(fifo_size, GFP_KERNEL);
 976         if (unlikely(cmd == NULL)) {
 977                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
 978                 return -ENOMEM;
 979         }
 980
 981         memset(cmd, 0, fifo_size);
 982
 983         cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
 984         cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
 985
 986         cmd->body.srcImage.sid = sid;
 987         cmd->body.destScreenId = SVGA_ID_INVALID; /* virtual coords */
 988
 989         cmd->body.srcRect.left = 0;
 990         cmd->body.srcRect.right = surface->sizes[0].width;
 991         cmd->body.srcRect.top = 0;
 992         cmd->body.srcRect.bottom = surface->sizes[0].height;
 993
 994         cmd->body.destRect.left = destX;
 995         cmd->body.destRect.right = destX + surface->sizes[0].width;
 996         cmd->body.destRect.top = destY;
 997         cmd->body.destRect.bottom = destY + surface->sizes[0].height;
 998
 999         blits = (SVGASignedRect *)&cmd[1];
1000         for (i = 0; i < num_clips; i++) {
1001                 blits[i].left   = clips[i].x;
1002                 blits[i].right  = clips[i].x + clips[i].w;
1003                 blits[i].top    = clips[i].y;
1004                 blits[i].bottom = clips[i].y + clips[i].h;
1005         }
1006
1007         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
1008                                   fifo_size, 0, NULL);
1009
1010         kfree(cmd);
1011
1012         return ret;
1013 }
1014
1015 int vmw_kms_readback(struct vmw_private *dev_priv,
1016                      struct drm_file *file_priv,
1017                      struct vmw_framebuffer *vfb,
1018                      struct drm_vmw_fence_rep __user *user_fence_rep,
1019                      struct drm_vmw_rect *clips,
1020                      uint32_t num_clips)
1021 {
1022         struct vmw_framebuffer_dmabuf *vfbd =
1023                 vmw_framebuffer_to_vfbd(&vfb->base);
1024         struct vmw_dma_buffer *dmabuf = vfbd->buffer;
1025         struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
1026         struct drm_crtc *crtc;
1027         size_t fifo_size;
1028         int i, k, ret, num_units, blits_pos;
1029
1030         struct {
1031                 uint32_t header;
1032                 SVGAFifoCmdDefineGMRFB body;
1033         } *cmd;
1034         struct {
1035                 uint32_t header;
1036                 SVGAFifoCmdBlitScreenToGMRFB body;
1037         } *blits;
1038
1039         num_units = 0;
1040         list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
1041                 if (crtc->fb != &vfb->base)
1042                         continue;
1043                 units[num_units++] = vmw_crtc_to_du(crtc);
1044         }
1045
1046         BUG_ON(dmabuf == NULL);
1047         BUG_ON(!clips || !num_clips);
1048
1049         /* take a safe guess at fifo size */
1050         fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
1051         cmd = kmalloc(fifo_size, GFP_KERNEL);
1052         if (unlikely(cmd == NULL)) {
1053                 DRM_ERROR("Failed to allocate temporary fifo memory.\n");
1054                 return -ENOMEM;
1055         }
1056
1057         memset(cmd, 0, fifo_size);
1058         cmd->header = SVGA_CMD_DEFINE_GMRFB;
1059         cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
1060         cmd->body.format.colorDepth = vfb->base.depth;
1061         cmd->body.format.reserved = 0;
1062         cmd->body.bytesPerLine = vfb->base.pitch;
1063         cmd->body.ptr.gmrId = vfb->user_handle;
1064         cmd->body.ptr.offset = 0;
1065
1066         blits = (void *)&cmd[1];
1067         blits_pos = 0;
1068         for (i = 0; i < num_units; i++) {
1069                 struct drm_vmw_rect *c = clips;
1070                 for (k = 0; k < num_clips; k++, c++) {
1071                         /* transform clip coords to crtc origin based coords */
1072                         int clip_x1 = c->x - units[i]->crtc.x;
1073                         int clip_x2 = c->x - units[i]->crtc.x + c->w;
1074                         int clip_y1 = c->y - units[i]->crtc.y;
1075                         int clip_y2 = c->y - units[i]->crtc.y + c->h;
1076                         int dest_x = c->x;
1077                         int dest_y = c->y;
1078
1079                         /* compensate for clipping, we negate
1080                          * a negative number and add that.
1081                          */
1082                         if (clip_x1 < 0)
1083                                 dest_x += -clip_x1;
1084                         if (clip_y1 < 0)
1085                                 dest_y += -clip_y1;
1086
1087                         /* clip */
1088                         clip_x1 = max(clip_x1, 0);
1089                         clip_y1 = max(clip_y1, 0);
1090                         clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
1091                         clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
1092
1093                         /* and cull any rects that misses the crtc */
1094                         if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
1095                             clip_y1 >= units[i]->crtc.mode.vdisplay ||
1096                             clip_x2 <= 0 || clip_y2 <= 0)
1097                                 continue;
1098
1099                         blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1100                         blits[blits_pos].body.srcScreenId = units[i]->unit;
1101                         blits[blits_pos].body.destOrigin.x = dest_x;
1102                         blits[blits_pos].body.destOrigin.y = dest_y;
1103
1104                         blits[blits_pos].body.srcRect.left = clip_x1;
1105                         blits[blits_pos].body.srcRect.top = clip_y1;
1106                         blits[blits_pos].body.srcRect.right = clip_x2;
1107                         blits[blits_pos].body.srcRect.bottom = clip_y2;
1108                         blits_pos++;
1109                 }
1110         }
1111         /* reset size here and use calculated exact size from loops */
1112         fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
1113
1114         ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
1115                                   0, user_fence_rep);
1116
1117         kfree(cmd);
1118
1119         return ret;
1120 }
1121
1122 int vmw_kms_init(struct vmw_private *dev_priv)
1123 {
1124         struct drm_device *dev = dev_priv->dev;
1125         int ret;
1126
1127         drm_mode_config_init(dev);
1128         dev->mode_config.funcs = &vmw_kms_funcs;
1129         dev->mode_config.min_width = 1;
1130         dev->mode_config.min_height = 1;
1131         /* assumed largest fb size */
1132         dev->mode_config.max_width = 8192;
1133         dev->mode_config.max_height = 8192;
1134
1135         ret = vmw_kms_init_screen_object_display(dev_priv);
1136         if (ret) /* Fallback */
1137                 (void)vmw_kms_init_legacy_display_system(dev_priv);
1138
1139         return 0;
1140 }
1141
1142 int vmw_kms_close(struct vmw_private *dev_priv)
1143 {
1144         /*
1145          * Docs says we should take the lock before calling this function
1146          * but since it destroys encoders and our destructor calls
1147          * drm_encoder_cleanup which takes the lock we deadlock.
1148          */
1149         drm_mode_config_cleanup(dev_priv->dev);
1150         vmw_kms_close_legacy_display_system(dev_priv);
1151         return 0;
1152 }
1153
1154 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1155                                 struct drm_file *file_priv)
1156 {
1157         struct drm_vmw_cursor_bypass_arg *arg = data;
1158         struct vmw_display_unit *du;
1159         struct drm_mode_object *obj;
1160         struct drm_crtc *crtc;
1161         int ret = 0;
1162
1163
1164         mutex_lock(&dev->mode_config.mutex);
1165         if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1166
1167                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1168                         du = vmw_crtc_to_du(crtc);
1169                         du->hotspot_x = arg->xhot;
1170                         du->hotspot_y = arg->yhot;
1171                 }
1172
1173                 mutex_unlock(&dev->mode_config.mutex);
1174                 return 0;
1175         }
1176
1177         obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
1178         if (!obj) {
1179                 ret = -EINVAL;
1180                 goto out;
1181         }
1182
1183         crtc = obj_to_crtc(obj);
1184         du = vmw_crtc_to_du(crtc);
1185
1186         du->hotspot_x = arg->xhot;
1187         du->hotspot_y = arg->yhot;
1188
1189 out:
1190         mutex_unlock(&dev->mode_config.mutex);
1191
1192         return ret;
1193 }
1194
1195 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1196                         unsigned width, unsigned height, unsigned pitch,
1197                         unsigned bpp, unsigned depth)
1198 {
1199         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1200                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1201         else if (vmw_fifo_have_pitchlock(vmw_priv))
1202                 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1203         vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1204         vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1205         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1206
1207         if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1208                 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1209                           depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1210                 return -EINVAL;
1211         }
1212
1213         return 0;
1214 }
1215
1216 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1217 {
1218         struct vmw_vga_topology_state *save;
1219         uint32_t i;
1220
1221         vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1222         vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1223         vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1224         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1225                 vmw_priv->vga_pitchlock =
1226                   vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1227         else if (vmw_fifo_have_pitchlock(vmw_priv))
1228                 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1229                                                        SVGA_FIFO_PITCHLOCK);
1230
1231         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1232                 return 0;
1233
1234         vmw_priv->num_displays = vmw_read(vmw_priv,
1235                                           SVGA_REG_NUM_GUEST_DISPLAYS);
1236
1237         if (vmw_priv->num_displays == 0)
1238                 vmw_priv->num_displays = 1;
1239
1240         for (i = 0; i < vmw_priv->num_displays; ++i) {
1241                 save = &vmw_priv->vga_save[i];
1242                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1243                 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1244                 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1245                 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1246                 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1247                 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1248                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1249                 if (i == 0 && vmw_priv->num_displays == 1 &&
1250                     save->width == 0 && save->height == 0) {
1251
1252                         /*
1253                          * It should be fairly safe to assume that these
1254                          * values are uninitialized.
1255                          */
1256
1257                         save->width = vmw_priv->vga_width - save->pos_x;
1258                         save->height = vmw_priv->vga_height - save->pos_y;
1259                 }
1260         }
1261
1262         return 0;
1263 }
1264
1265 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1266 {
1267         struct vmw_vga_topology_state *save;
1268         uint32_t i;
1269
1270         vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1271         vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1272         vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1273         if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1274                 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1275                           vmw_priv->vga_pitchlock);
1276         else if (vmw_fifo_have_pitchlock(vmw_priv))
1277                 iowrite32(vmw_priv->vga_pitchlock,
1278                           vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1279
1280         if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1281                 return 0;
1282
1283         for (i = 0; i < vmw_priv->num_displays; ++i) {
1284                 save = &vmw_priv->vga_save[i];
1285                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1286                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1287                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1288                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1289                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1290                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1291                 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1292         }
1293
1294         return 0;
1295 }
1296
1297 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1298                                 uint32_t pitch,
1299                                 uint32_t height)
1300 {
1301         return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1302 }
1303
1304 u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1305 {
1306         return 0;
1307 }
1308
1309
1310 /*
1311  * Small shared kms functions.
1312  */
1313
1314 int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1315                          struct drm_vmw_rect *rects)
1316 {
1317         struct drm_device *dev = dev_priv->dev;
1318         struct vmw_display_unit *du;
1319         struct drm_connector *con;
1320         int i;
1321
1322         mutex_lock(&dev->mode_config.mutex);
1323
1324 #if 0
1325         DRM_INFO("%s: new layout ", __func__);
1326         for (i = 0; i < (int)num; i++)
1327                 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1328                          rects[i].w, rects[i].h);
1329         DRM_INFO("\n");
1330 #else
1331         (void)i;
1332 #endif
1333
1334         list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1335                 du = vmw_connector_to_du(con);
1336                 if (num > du->unit) {
1337                         du->pref_width = rects[du->unit].w;
1338                         du->pref_height = rects[du->unit].h;
1339                         du->pref_active = true;
1340                 } else {
1341                         du->pref_width = 800;
1342                         du->pref_height = 600;
1343                         du->pref_active = false;
1344                 }
1345                 con->status = vmw_du_connector_detect(con, true);
1346         }
1347
1348         mutex_unlock(&dev->mode_config.mutex);
1349
1350         return 0;
1351 }
1352
1353 void vmw_du_crtc_save(struct drm_crtc *crtc)
1354 {
1355 }
1356
1357 void vmw_du_crtc_restore(struct drm_crtc *crtc)
1358 {
1359 }
1360
1361 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1362                            u16 *r, u16 *g, u16 *b,
1363                            uint32_t start, uint32_t size)
1364 {
1365         struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1366         int i;
1367
1368         for (i = 0; i < size; i++) {
1369                 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1370                           r[i], g[i], b[i]);
1371                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1372                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1373                 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1374         }
1375 }
1376
1377 void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1378 {
1379 }
1380
1381 void vmw_du_connector_save(struct drm_connector *connector)
1382 {
1383 }
1384
1385 void vmw_du_connector_restore(struct drm_connector *connector)
1386 {
1387 }
1388
1389 enum drm_connector_status
1390 vmw_du_connector_detect(struct drm_connector *connector, bool force)
1391 {
1392         uint32_t num_displays;
1393         struct drm_device *dev = connector->dev;
1394         struct vmw_private *dev_priv = vmw_priv(dev);
1395
1396         mutex_lock(&dev_priv->hw_mutex);
1397         num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1398         mutex_unlock(&dev_priv->hw_mutex);
1399
1400         return ((vmw_connector_to_du(connector)->unit < num_displays) ?
1401                 connector_status_connected : connector_status_disconnected);
1402 }
1403
1404 static struct drm_display_mode vmw_kms_connector_builtin[] = {
1405         /* 640x480@60Hz */
1406         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1407                    752, 800, 0, 480, 489, 492, 525, 0,
1408                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1409         /* 800x600@60Hz */
1410         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1411                    968, 1056, 0, 600, 601, 605, 628, 0,
1412                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1413         /* 1024x768@60Hz */
1414         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1415                    1184, 1344, 0, 768, 771, 777, 806, 0,
1416                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1417         /* 1152x864@75Hz */
1418         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1419                    1344, 1600, 0, 864, 865, 868, 900, 0,
1420                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1421         /* 1280x768@60Hz */
1422         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1423                    1472, 1664, 0, 768, 771, 778, 798, 0,
1424                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1425         /* 1280x800@60Hz */
1426         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1427                    1480, 1680, 0, 800, 803, 809, 831, 0,
1428                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1429         /* 1280x960@60Hz */
1430         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1431                    1488, 1800, 0, 960, 961, 964, 1000, 0,
1432                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1433         /* 1280x1024@60Hz */
1434         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1435                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1436                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1437         /* 1360x768@60Hz */
1438         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1439                    1536, 1792, 0, 768, 771, 777, 795, 0,
1440                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1441         /* 1440x1050@60Hz */
1442         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1443                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1444                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1445         /* 1440x900@60Hz */
1446         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1447                    1672, 1904, 0, 900, 903, 909, 934, 0,
1448                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1449         /* 1600x1200@60Hz */
1450         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1451                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1452                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1453         /* 1680x1050@60Hz */
1454         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1455                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1456                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1457         /* 1792x1344@60Hz */
1458         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1459                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1460                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1461         /* 1853x1392@60Hz */
1462         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
1463                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
1464                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1465         /* 1920x1200@60Hz */
1466         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
1467                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
1468                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1469         /* 1920x1440@60Hz */
1470         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
1471                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
1472                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1473         /* 2560x1600@60Hz */
1474         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
1475                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
1476                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1477         /* Terminate */
1478         { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
1479 };
1480
1481 int vmw_du_connector_fill_modes(struct drm_connector *connector,
1482                                 uint32_t max_width, uint32_t max_height)
1483 {
1484         struct vmw_display_unit *du = vmw_connector_to_du(connector);
1485         struct drm_device *dev = connector->dev;
1486         struct vmw_private *dev_priv = vmw_priv(dev);
1487         struct drm_display_mode *mode = NULL;
1488         struct drm_display_mode *bmode;
1489         struct drm_display_mode prefmode = { DRM_MODE("preferred",
1490                 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
1491                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1492                 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
1493         };
1494         int i;
1495
1496         /* Add preferred mode */
1497         {
1498                 mode = drm_mode_duplicate(dev, &prefmode);
1499                 if (!mode)
1500                         return 0;
1501                 mode->hdisplay = du->pref_width;
1502                 mode->vdisplay = du->pref_height;
1503                 mode->vrefresh = drm_mode_vrefresh(mode);
1504                 if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
1505                                                mode->vdisplay)) {
1506                         drm_mode_probed_add(connector, mode);
1507
1508                         if (du->pref_mode) {
1509                                 list_del_init(&du->pref_mode->head);
1510                                 drm_mode_destroy(dev, du->pref_mode);
1511                         }
1512
1513                         du->pref_mode = mode;
1514                 }
1515         }
1516
1517         for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
1518                 bmode = &vmw_kms_connector_builtin[i];
1519                 if (bmode->hdisplay > max_width ||
1520                     bmode->vdisplay > max_height)
1521                         continue;
1522
1523                 if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
1524                                                 bmode->vdisplay))
1525                         continue;
1526
1527                 mode = drm_mode_duplicate(dev, bmode);
1528                 if (!mode)
1529                         return 0;
1530                 mode->vrefresh = drm_mode_vrefresh(mode);
1531
1532                 drm_mode_probed_add(connector, mode);
1533         }
1534
1535         drm_mode_connector_list_update(connector);
1536
1537         return 1;
1538 }
1539
1540 int vmw_du_connector_set_property(struct drm_connector *connector,
1541                                   struct drm_property *property,
1542                                   uint64_t val)
1543 {
1544         return 0;
1545 }