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