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