1 /************************************************************************** 2 * Copyright (c) 2007-2011, Intel Corporation. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms and conditions of the GNU General Public License, 7 * version 2, as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 **************************************************************************/ 19 20 #include <linux/module.h> 21 #include <linux/kernel.h> 22 #include <linux/errno.h> 23 #include <linux/string.h> 24 #include <linux/pfn_t.h> 25 #include <linux/mm.h> 26 #include <linux/tty.h> 27 #include <linux/slab.h> 28 #include <linux/delay.h> 29 #include <linux/fb.h> 30 #include <linux/init.h> 31 #include <linux/console.h> 32 33 #include <drm/drmP.h> 34 #include <drm/drm.h> 35 #include <drm/drm_crtc.h> 36 #include <drm/drm_fb_helper.h> 37 38 #include "psb_drv.h" 39 #include "psb_intel_reg.h" 40 #include "psb_intel_drv.h" 41 #include "framebuffer.h" 42 #include "gtt.h" 43 44 static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb); 45 static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb, 46 struct drm_file *file_priv, 47 unsigned int *handle); 48 49 static const struct drm_framebuffer_funcs psb_fb_funcs = { 50 .destroy = psb_user_framebuffer_destroy, 51 .create_handle = psb_user_framebuffer_create_handle, 52 }; 53 54 #define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16) 55 56 static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green, 57 unsigned blue, unsigned transp, 58 struct fb_info *info) 59 { 60 struct psb_fbdev *fbdev = info->par; 61 struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb; 62 uint32_t v; 63 64 if (!fb) 65 return -ENOMEM; 66 67 if (regno > 255) 68 return 1; 69 70 red = CMAP_TOHW(red, info->var.red.length); 71 blue = CMAP_TOHW(blue, info->var.blue.length); 72 green = CMAP_TOHW(green, info->var.green.length); 73 transp = CMAP_TOHW(transp, info->var.transp.length); 74 75 v = (red << info->var.red.offset) | 76 (green << info->var.green.offset) | 77 (blue << info->var.blue.offset) | 78 (transp << info->var.transp.offset); 79 80 if (regno < 16) { 81 switch (fb->bits_per_pixel) { 82 case 16: 83 ((uint32_t *) info->pseudo_palette)[regno] = v; 84 break; 85 case 24: 86 case 32: 87 ((uint32_t *) info->pseudo_palette)[regno] = v; 88 break; 89 } 90 } 91 92 return 0; 93 } 94 95 static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info) 96 { 97 struct psb_fbdev *fbdev = info->par; 98 struct psb_framebuffer *psbfb = &fbdev->pfb; 99 struct drm_device *dev = psbfb->base.dev; 100 101 /* 102 * We have to poke our nose in here. The core fb code assumes 103 * panning is part of the hardware that can be invoked before 104 * the actual fb is mapped. In our case that isn't quite true. 105 */ 106 if (psbfb->gtt->npage) { 107 /* GTT roll shifts in 4K pages, we need to shift the right 108 number of pages */ 109 int pages = info->fix.line_length >> 12; 110 psb_gtt_roll(dev, psbfb->gtt, var->yoffset * pages); 111 } 112 return 0; 113 } 114 115 static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) 116 { 117 struct psb_framebuffer *psbfb = vma->vm_private_data; 118 struct drm_device *dev = psbfb->base.dev; 119 struct drm_psb_private *dev_priv = dev->dev_private; 120 int page_num; 121 int i; 122 unsigned long address; 123 int ret; 124 unsigned long pfn; 125 unsigned long phys_addr = (unsigned long)dev_priv->stolen_base + 126 psbfb->gtt->offset; 127 128 page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; 129 address = (unsigned long)vmf->virtual_address - (vmf->pgoff << PAGE_SHIFT); 130 131 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 132 133 for (i = 0; i < page_num; i++) { 134 pfn = (phys_addr >> PAGE_SHIFT); 135 136 ret = vm_insert_mixed(vma, address, 137 __pfn_to_pfn_t(pfn, PFN_DEV)); 138 if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0))) 139 break; 140 else if (unlikely(ret != 0)) { 141 ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS; 142 return ret; 143 } 144 address += PAGE_SIZE; 145 phys_addr += PAGE_SIZE; 146 } 147 return VM_FAULT_NOPAGE; 148 } 149 150 static void psbfb_vm_open(struct vm_area_struct *vma) 151 { 152 } 153 154 static void psbfb_vm_close(struct vm_area_struct *vma) 155 { 156 } 157 158 static const struct vm_operations_struct psbfb_vm_ops = { 159 .fault = psbfb_vm_fault, 160 .open = psbfb_vm_open, 161 .close = psbfb_vm_close 162 }; 163 164 static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma) 165 { 166 struct psb_fbdev *fbdev = info->par; 167 struct psb_framebuffer *psbfb = &fbdev->pfb; 168 169 if (vma->vm_pgoff != 0) 170 return -EINVAL; 171 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) 172 return -EINVAL; 173 174 if (!psbfb->addr_space) 175 psbfb->addr_space = vma->vm_file->f_mapping; 176 /* 177 * If this is a GEM object then info->screen_base is the virtual 178 * kernel remapping of the object. FIXME: Review if this is 179 * suitable for our mmap work 180 */ 181 vma->vm_ops = &psbfb_vm_ops; 182 vma->vm_private_data = (void *)psbfb; 183 vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP; 184 return 0; 185 } 186 187 static int psbfb_ioctl(struct fb_info *info, unsigned int cmd, 188 unsigned long arg) 189 { 190 return -ENOTTY; 191 } 192 193 static struct fb_ops psbfb_ops = { 194 .owner = THIS_MODULE, 195 .fb_check_var = drm_fb_helper_check_var, 196 .fb_set_par = drm_fb_helper_set_par, 197 .fb_blank = drm_fb_helper_blank, 198 .fb_setcolreg = psbfb_setcolreg, 199 .fb_fillrect = drm_fb_helper_cfb_fillrect, 200 .fb_copyarea = psbfb_copyarea, 201 .fb_imageblit = drm_fb_helper_cfb_imageblit, 202 .fb_mmap = psbfb_mmap, 203 .fb_sync = psbfb_sync, 204 .fb_ioctl = psbfb_ioctl, 205 }; 206 207 static struct fb_ops psbfb_roll_ops = { 208 .owner = THIS_MODULE, 209 .fb_check_var = drm_fb_helper_check_var, 210 .fb_set_par = drm_fb_helper_set_par, 211 .fb_blank = drm_fb_helper_blank, 212 .fb_setcolreg = psbfb_setcolreg, 213 .fb_fillrect = drm_fb_helper_cfb_fillrect, 214 .fb_copyarea = drm_fb_helper_cfb_copyarea, 215 .fb_imageblit = drm_fb_helper_cfb_imageblit, 216 .fb_pan_display = psbfb_pan, 217 .fb_mmap = psbfb_mmap, 218 .fb_ioctl = psbfb_ioctl, 219 }; 220 221 static struct fb_ops psbfb_unaccel_ops = { 222 .owner = THIS_MODULE, 223 .fb_check_var = drm_fb_helper_check_var, 224 .fb_set_par = drm_fb_helper_set_par, 225 .fb_blank = drm_fb_helper_blank, 226 .fb_setcolreg = psbfb_setcolreg, 227 .fb_fillrect = drm_fb_helper_cfb_fillrect, 228 .fb_copyarea = drm_fb_helper_cfb_copyarea, 229 .fb_imageblit = drm_fb_helper_cfb_imageblit, 230 .fb_mmap = psbfb_mmap, 231 .fb_ioctl = psbfb_ioctl, 232 }; 233 234 /** 235 * psb_framebuffer_init - initialize a framebuffer 236 * @dev: our DRM device 237 * @fb: framebuffer to set up 238 * @mode_cmd: mode description 239 * @gt: backing object 240 * 241 * Configure and fill in the boilerplate for our frame buffer. Return 242 * 0 on success or an error code if we fail. 243 */ 244 static int psb_framebuffer_init(struct drm_device *dev, 245 struct psb_framebuffer *fb, 246 const struct drm_mode_fb_cmd2 *mode_cmd, 247 struct gtt_range *gt) 248 { 249 u32 bpp, depth; 250 int ret; 251 252 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp); 253 254 if (mode_cmd->pitches[0] & 63) 255 return -EINVAL; 256 switch (bpp) { 257 case 8: 258 case 16: 259 case 24: 260 case 32: 261 break; 262 default: 263 return -EINVAL; 264 } 265 drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd); 266 fb->gtt = gt; 267 ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs); 268 if (ret) { 269 dev_err(dev->dev, "framebuffer init failed: %d\n", ret); 270 return ret; 271 } 272 return 0; 273 } 274 275 /** 276 * psb_framebuffer_create - create a framebuffer backed by gt 277 * @dev: our DRM device 278 * @mode_cmd: the description of the requested mode 279 * @gt: the backing object 280 * 281 * Create a framebuffer object backed by the gt, and fill in the 282 * boilerplate required 283 * 284 * TODO: review object references 285 */ 286 287 static struct drm_framebuffer *psb_framebuffer_create 288 (struct drm_device *dev, 289 const struct drm_mode_fb_cmd2 *mode_cmd, 290 struct gtt_range *gt) 291 { 292 struct psb_framebuffer *fb; 293 int ret; 294 295 fb = kzalloc(sizeof(*fb), GFP_KERNEL); 296 if (!fb) 297 return ERR_PTR(-ENOMEM); 298 299 ret = psb_framebuffer_init(dev, fb, mode_cmd, gt); 300 if (ret) { 301 kfree(fb); 302 return ERR_PTR(ret); 303 } 304 return &fb->base; 305 } 306 307 /** 308 * psbfb_alloc - allocate frame buffer memory 309 * @dev: the DRM device 310 * @aligned_size: space needed 311 * @force: fall back to GEM buffers if need be 312 * 313 * Allocate the frame buffer. In the usual case we get a GTT range that 314 * is stolen memory backed and life is simple. If there isn't sufficient 315 * we fail as we don't have the virtual mapping space to really vmap it 316 * and the kernel console code can't handle non linear framebuffers. 317 * 318 * Re-address this as and if the framebuffer layer grows this ability. 319 */ 320 static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size) 321 { 322 struct gtt_range *backing; 323 /* Begin by trying to use stolen memory backing */ 324 backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE); 325 if (backing) { 326 drm_gem_private_object_init(dev, &backing->gem, aligned_size); 327 return backing; 328 } 329 return NULL; 330 } 331 332 /** 333 * psbfb_create - create a framebuffer 334 * @fbdev: the framebuffer device 335 * @sizes: specification of the layout 336 * 337 * Create a framebuffer to the specifications provided 338 */ 339 static int psbfb_create(struct psb_fbdev *fbdev, 340 struct drm_fb_helper_surface_size *sizes) 341 { 342 struct drm_device *dev = fbdev->psb_fb_helper.dev; 343 struct drm_psb_private *dev_priv = dev->dev_private; 344 struct fb_info *info; 345 struct drm_framebuffer *fb; 346 struct psb_framebuffer *psbfb = &fbdev->pfb; 347 struct drm_mode_fb_cmd2 mode_cmd; 348 int size; 349 int ret; 350 struct gtt_range *backing; 351 u32 bpp, depth; 352 int gtt_roll = 0; 353 int pitch_lines = 0; 354 355 mode_cmd.width = sizes->surface_width; 356 mode_cmd.height = sizes->surface_height; 357 bpp = sizes->surface_bpp; 358 depth = sizes->surface_depth; 359 360 /* No 24bit packed */ 361 if (bpp == 24) 362 bpp = 32; 363 364 do { 365 /* 366 * Acceleration via the GTT requires pitch to be 367 * power of two aligned. Preferably page but less 368 * is ok with some fonts 369 */ 370 mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096 >> pitch_lines); 371 372 size = mode_cmd.pitches[0] * mode_cmd.height; 373 size = ALIGN(size, PAGE_SIZE); 374 375 /* Allocate the fb in the GTT with stolen page backing */ 376 backing = psbfb_alloc(dev, size); 377 378 if (pitch_lines) 379 pitch_lines *= 2; 380 else 381 pitch_lines = 1; 382 gtt_roll++; 383 } while (backing == NULL && pitch_lines <= 16); 384 385 /* The final pitch we accepted if we succeeded */ 386 pitch_lines /= 2; 387 388 if (backing == NULL) { 389 /* 390 * We couldn't get the space we wanted, fall back to the 391 * display engine requirement instead. The HW requires 392 * the pitch to be 64 byte aligned 393 */ 394 395 gtt_roll = 0; /* Don't use GTT accelerated scrolling */ 396 pitch_lines = 64; 397 398 mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64); 399 400 size = mode_cmd.pitches[0] * mode_cmd.height; 401 size = ALIGN(size, PAGE_SIZE); 402 403 /* Allocate the framebuffer in the GTT with stolen page backing */ 404 backing = psbfb_alloc(dev, size); 405 if (backing == NULL) 406 return -ENOMEM; 407 } 408 409 memset(dev_priv->vram_addr + backing->offset, 0, size); 410 411 info = drm_fb_helper_alloc_fbi(&fbdev->psb_fb_helper); 412 if (IS_ERR(info)) { 413 ret = PTR_ERR(info); 414 goto out_err1; 415 } 416 info->par = fbdev; 417 418 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); 419 420 ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing); 421 if (ret) 422 goto out_unref; 423 424 fb = &psbfb->base; 425 psbfb->fbdev = info; 426 427 fbdev->psb_fb_helper.fb = fb; 428 429 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); 430 strcpy(info->fix.id, "psbdrmfb"); 431 432 info->flags = FBINFO_DEFAULT; 433 if (dev_priv->ops->accel_2d && pitch_lines > 8) /* 2D engine */ 434 info->fbops = &psbfb_ops; 435 else if (gtt_roll) { /* GTT rolling seems best */ 436 info->fbops = &psbfb_roll_ops; 437 info->flags |= FBINFO_HWACCEL_YPAN; 438 } else /* Software */ 439 info->fbops = &psbfb_unaccel_ops; 440 441 info->fix.smem_start = dev->mode_config.fb_base; 442 info->fix.smem_len = size; 443 info->fix.ywrapstep = gtt_roll; 444 info->fix.ypanstep = 0; 445 446 /* Accessed stolen memory directly */ 447 info->screen_base = dev_priv->vram_addr + backing->offset; 448 info->screen_size = size; 449 450 if (dev_priv->gtt.stolen_size) { 451 info->apertures->ranges[0].base = dev->mode_config.fb_base; 452 info->apertures->ranges[0].size = dev_priv->gtt.stolen_size; 453 } 454 455 drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper, 456 sizes->fb_width, sizes->fb_height); 457 458 info->fix.mmio_start = pci_resource_start(dev->pdev, 0); 459 info->fix.mmio_len = pci_resource_len(dev->pdev, 0); 460 461 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ 462 463 dev_dbg(dev->dev, "allocated %dx%d fb\n", 464 psbfb->base.width, psbfb->base.height); 465 466 return 0; 467 out_unref: 468 if (backing->stolen) 469 psb_gtt_free_range(dev, backing); 470 else 471 drm_gem_object_unreference_unlocked(&backing->gem); 472 473 drm_fb_helper_release_fbi(&fbdev->psb_fb_helper); 474 out_err1: 475 psb_gtt_free_range(dev, backing); 476 return ret; 477 } 478 479 /** 480 * psb_user_framebuffer_create - create framebuffer 481 * @dev: our DRM device 482 * @filp: client file 483 * @cmd: mode request 484 * 485 * Create a new framebuffer backed by a userspace GEM object 486 */ 487 static struct drm_framebuffer *psb_user_framebuffer_create 488 (struct drm_device *dev, struct drm_file *filp, 489 const struct drm_mode_fb_cmd2 *cmd) 490 { 491 struct gtt_range *r; 492 struct drm_gem_object *obj; 493 494 /* 495 * Find the GEM object and thus the gtt range object that is 496 * to back this space 497 */ 498 obj = drm_gem_object_lookup(dev, filp, cmd->handles[0]); 499 if (obj == NULL) 500 return ERR_PTR(-ENOENT); 501 502 /* Let the core code do all the work */ 503 r = container_of(obj, struct gtt_range, gem); 504 return psb_framebuffer_create(dev, cmd, r); 505 } 506 507 static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, 508 u16 blue, int regno) 509 { 510 struct gma_crtc *gma_crtc = to_gma_crtc(crtc); 511 512 gma_crtc->lut_r[regno] = red >> 8; 513 gma_crtc->lut_g[regno] = green >> 8; 514 gma_crtc->lut_b[regno] = blue >> 8; 515 } 516 517 static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red, 518 u16 *green, u16 *blue, int regno) 519 { 520 struct gma_crtc *gma_crtc = to_gma_crtc(crtc); 521 522 *red = gma_crtc->lut_r[regno] << 8; 523 *green = gma_crtc->lut_g[regno] << 8; 524 *blue = gma_crtc->lut_b[regno] << 8; 525 } 526 527 static int psbfb_probe(struct drm_fb_helper *helper, 528 struct drm_fb_helper_surface_size *sizes) 529 { 530 struct psb_fbdev *psb_fbdev = 531 container_of(helper, struct psb_fbdev, psb_fb_helper); 532 struct drm_device *dev = psb_fbdev->psb_fb_helper.dev; 533 struct drm_psb_private *dev_priv = dev->dev_private; 534 int bytespp; 535 536 bytespp = sizes->surface_bpp / 8; 537 if (bytespp == 3) /* no 24bit packed */ 538 bytespp = 4; 539 540 /* If the mode will not fit in 32bit then switch to 16bit to get 541 a console on full resolution. The X mode setting server will 542 allocate its own 32bit GEM framebuffer */ 543 if (ALIGN(sizes->fb_width * bytespp, 64) * sizes->fb_height > 544 dev_priv->vram_stolen_size) { 545 sizes->surface_bpp = 16; 546 sizes->surface_depth = 16; 547 } 548 549 return psbfb_create(psb_fbdev, sizes); 550 } 551 552 static const struct drm_fb_helper_funcs psb_fb_helper_funcs = { 553 .gamma_set = psbfb_gamma_set, 554 .gamma_get = psbfb_gamma_get, 555 .fb_probe = psbfb_probe, 556 }; 557 558 static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev) 559 { 560 struct psb_framebuffer *psbfb = &fbdev->pfb; 561 562 drm_fb_helper_unregister_fbi(&fbdev->psb_fb_helper); 563 drm_fb_helper_release_fbi(&fbdev->psb_fb_helper); 564 565 drm_fb_helper_fini(&fbdev->psb_fb_helper); 566 drm_framebuffer_unregister_private(&psbfb->base); 567 drm_framebuffer_cleanup(&psbfb->base); 568 569 if (psbfb->gtt) 570 drm_gem_object_unreference_unlocked(&psbfb->gtt->gem); 571 return 0; 572 } 573 574 int psb_fbdev_init(struct drm_device *dev) 575 { 576 struct psb_fbdev *fbdev; 577 struct drm_psb_private *dev_priv = dev->dev_private; 578 int ret; 579 580 fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL); 581 if (!fbdev) { 582 dev_err(dev->dev, "no memory\n"); 583 return -ENOMEM; 584 } 585 586 dev_priv->fbdev = fbdev; 587 588 drm_fb_helper_prepare(dev, &fbdev->psb_fb_helper, &psb_fb_helper_funcs); 589 590 ret = drm_fb_helper_init(dev, &fbdev->psb_fb_helper, 591 dev_priv->ops->crtcs, INTELFB_CONN_LIMIT); 592 if (ret) 593 goto free; 594 595 ret = drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper); 596 if (ret) 597 goto fini; 598 599 /* disable all the possible outputs/crtcs before entering KMS mode */ 600 drm_helper_disable_unused_functions(dev); 601 602 ret = drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32); 603 if (ret) 604 goto fini; 605 606 return 0; 607 608 fini: 609 drm_fb_helper_fini(&fbdev->psb_fb_helper); 610 free: 611 kfree(fbdev); 612 return ret; 613 } 614 615 static void psb_fbdev_fini(struct drm_device *dev) 616 { 617 struct drm_psb_private *dev_priv = dev->dev_private; 618 619 if (!dev_priv->fbdev) 620 return; 621 622 psb_fbdev_destroy(dev, dev_priv->fbdev); 623 kfree(dev_priv->fbdev); 624 dev_priv->fbdev = NULL; 625 } 626 627 static void psbfb_output_poll_changed(struct drm_device *dev) 628 { 629 struct drm_psb_private *dev_priv = dev->dev_private; 630 struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev; 631 drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper); 632 } 633 634 /** 635 * psb_user_framebuffer_create_handle - add hamdle to a framebuffer 636 * @fb: framebuffer 637 * @file_priv: our DRM file 638 * @handle: returned handle 639 * 640 * Our framebuffer object is a GTT range which also contains a GEM 641 * object. We need to turn it into a handle for userspace. GEM will do 642 * the work for us 643 */ 644 static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb, 645 struct drm_file *file_priv, 646 unsigned int *handle) 647 { 648 struct psb_framebuffer *psbfb = to_psb_fb(fb); 649 struct gtt_range *r = psbfb->gtt; 650 return drm_gem_handle_create(file_priv, &r->gem, handle); 651 } 652 653 /** 654 * psb_user_framebuffer_destroy - destruct user created fb 655 * @fb: framebuffer 656 * 657 * User framebuffers are backed by GEM objects so all we have to do is 658 * clean up a bit and drop the reference, GEM will handle the fallout 659 */ 660 static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb) 661 { 662 struct psb_framebuffer *psbfb = to_psb_fb(fb); 663 struct gtt_range *r = psbfb->gtt; 664 665 /* Let DRM do its clean up */ 666 drm_framebuffer_cleanup(fb); 667 /* We are no longer using the resource in GEM */ 668 drm_gem_object_unreference_unlocked(&r->gem); 669 kfree(fb); 670 } 671 672 static const struct drm_mode_config_funcs psb_mode_funcs = { 673 .fb_create = psb_user_framebuffer_create, 674 .output_poll_changed = psbfb_output_poll_changed, 675 }; 676 677 static void psb_setup_outputs(struct drm_device *dev) 678 { 679 struct drm_psb_private *dev_priv = dev->dev_private; 680 struct drm_connector *connector; 681 682 drm_mode_create_scaling_mode_property(dev); 683 684 /* It is ok for this to fail - we just don't get backlight control */ 685 if (!dev_priv->backlight_property) 686 dev_priv->backlight_property = drm_property_create_range(dev, 0, 687 "backlight", 0, 100); 688 dev_priv->ops->output_init(dev); 689 690 list_for_each_entry(connector, &dev->mode_config.connector_list, 691 head) { 692 struct gma_encoder *gma_encoder = gma_attached_encoder(connector); 693 struct drm_encoder *encoder = &gma_encoder->base; 694 int crtc_mask = 0, clone_mask = 0; 695 696 /* valid crtcs */ 697 switch (gma_encoder->type) { 698 case INTEL_OUTPUT_ANALOG: 699 crtc_mask = (1 << 0); 700 clone_mask = (1 << INTEL_OUTPUT_ANALOG); 701 break; 702 case INTEL_OUTPUT_SDVO: 703 crtc_mask = dev_priv->ops->sdvo_mask; 704 clone_mask = (1 << INTEL_OUTPUT_SDVO); 705 break; 706 case INTEL_OUTPUT_LVDS: 707 crtc_mask = dev_priv->ops->lvds_mask; 708 clone_mask = (1 << INTEL_OUTPUT_LVDS); 709 break; 710 case INTEL_OUTPUT_MIPI: 711 crtc_mask = (1 << 0); 712 clone_mask = (1 << INTEL_OUTPUT_MIPI); 713 break; 714 case INTEL_OUTPUT_MIPI2: 715 crtc_mask = (1 << 2); 716 clone_mask = (1 << INTEL_OUTPUT_MIPI2); 717 break; 718 case INTEL_OUTPUT_HDMI: 719 crtc_mask = dev_priv->ops->hdmi_mask; 720 clone_mask = (1 << INTEL_OUTPUT_HDMI); 721 break; 722 case INTEL_OUTPUT_DISPLAYPORT: 723 crtc_mask = (1 << 0) | (1 << 1); 724 clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT); 725 break; 726 case INTEL_OUTPUT_EDP: 727 crtc_mask = (1 << 1); 728 clone_mask = (1 << INTEL_OUTPUT_EDP); 729 } 730 encoder->possible_crtcs = crtc_mask; 731 encoder->possible_clones = 732 gma_connector_clones(dev, clone_mask); 733 } 734 } 735 736 void psb_modeset_init(struct drm_device *dev) 737 { 738 struct drm_psb_private *dev_priv = dev->dev_private; 739 struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; 740 int i; 741 742 drm_mode_config_init(dev); 743 744 dev->mode_config.min_width = 0; 745 dev->mode_config.min_height = 0; 746 747 dev->mode_config.funcs = &psb_mode_funcs; 748 749 /* set memory base */ 750 /* Oaktrail and Poulsbo should use BAR 2*/ 751 pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *) 752 &(dev->mode_config.fb_base)); 753 754 /* num pipes is 2 for PSB but 1 for Mrst */ 755 for (i = 0; i < dev_priv->num_pipe; i++) 756 psb_intel_crtc_init(dev, i, mode_dev); 757 758 dev->mode_config.max_width = 4096; 759 dev->mode_config.max_height = 4096; 760 761 psb_setup_outputs(dev); 762 763 if (dev_priv->ops->errata) 764 dev_priv->ops->errata(dev); 765 766 dev_priv->modeset = true; 767 } 768 769 void psb_modeset_cleanup(struct drm_device *dev) 770 { 771 struct drm_psb_private *dev_priv = dev->dev_private; 772 if (dev_priv->modeset) { 773 drm_kms_helper_poll_fini(dev); 774 psb_fbdev_fini(dev); 775 drm_mode_config_cleanup(dev); 776 } 777 } 778