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/mm.h> 25#include <linux/tty.h> 26#include <linux/slab.h> 27#include <linux/delay.h> 28#include <linux/fb.h> 29#include <linux/init.h> 30#include <linux/console.h> 31 32#include <drm/drmP.h> 33#include <drm/drm.h> 34#include <drm/drm_crtc.h> 35#include <drm/drm_fb_helper.h> 36 37#include "psb_drv.h" 38#include "psb_intel_reg.h" 39#include "psb_intel_drv.h" 40#include "framebuffer.h" 41#include "gtt.h" 42 43static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb); 44static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb, 45 struct drm_file *file_priv, 46 unsigned int *handle); 47 48static const struct drm_framebuffer_funcs psb_fb_funcs = { 49 .destroy = psb_user_framebuffer_destroy, 50 .create_handle = psb_user_framebuffer_create_handle, 51}; 52 53#define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16) 54 55static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green, 56 unsigned blue, unsigned transp, 57 struct fb_info *info) 58{ 59 struct psb_fbdev *fbdev = info->par; 60 struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb; 61 uint32_t v; 62 63 if (!fb) 64 return -ENOMEM; 65 66 if (regno > 255) 67 return 1; 68 69 red = CMAP_TOHW(red, info->var.red.length); 70 blue = CMAP_TOHW(blue, info->var.blue.length); 71 green = CMAP_TOHW(green, info->var.green.length); 72 transp = CMAP_TOHW(transp, info->var.transp.length); 73 74 v = (red << info->var.red.offset) | 75 (green << info->var.green.offset) | 76 (blue << info->var.blue.offset) | 77 (transp << info->var.transp.offset); 78 79 if (regno < 16) { 80 switch (fb->bits_per_pixel) { 81 case 16: 82 ((uint32_t *) info->pseudo_palette)[regno] = v; 83 break; 84 case 24: 85 case 32: 86 ((uint32_t *) info->pseudo_palette)[regno] = v; 87 break; 88 } 89 } 90 91 return 0; 92} 93 94static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info) 95{ 96 struct psb_fbdev *fbdev = info->par; 97 struct psb_framebuffer *psbfb = &fbdev->pfb; 98 struct drm_device *dev = psbfb->base.dev; 99 100 /* 101 * We have to poke our nose in here. The core fb code assumes 102 * panning is part of the hardware that can be invoked before 103 * the actual fb is mapped. In our case that isn't quite true. 104 */ 105 if (psbfb->gtt->npage) { 106 /* GTT roll shifts in 4K pages, we need to shift the right 107 number of pages */ 108 int pages = info->fix.line_length >> 12; 109 psb_gtt_roll(dev, psbfb->gtt, var->yoffset * pages); 110 } 111 return 0; 112} 113 114static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) 115{ 116 struct psb_framebuffer *psbfb = vma->vm_private_data; 117 struct drm_device *dev = psbfb->base.dev; 118 struct drm_psb_private *dev_priv = dev->dev_private; 119 int page_num; 120 int i; 121 unsigned long address; 122 int ret; 123 unsigned long pfn; 124 unsigned long phys_addr = (unsigned long)dev_priv->stolen_base + 125 psbfb->gtt->offset; 126 127 page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; 128 address = (unsigned long)vmf->virtual_address - (vmf->pgoff << PAGE_SHIFT); 129 130 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 131 132 for (i = 0; i < page_num; i++) { 133 pfn = (phys_addr >> PAGE_SHIFT); 134 135 ret = vm_insert_mixed(vma, address, pfn); 136 if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0))) 137 break; 138 else if (unlikely(ret != 0)) { 139 ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS; 140 return ret; 141 } 142 address += PAGE_SIZE; 143 phys_addr += PAGE_SIZE; 144 } 145 return VM_FAULT_NOPAGE; 146} 147 148static void psbfb_vm_open(struct vm_area_struct *vma) 149{ 150} 151 152static void psbfb_vm_close(struct vm_area_struct *vma) 153{ 154} 155 156static const struct vm_operations_struct psbfb_vm_ops = { 157 .fault = psbfb_vm_fault, 158 .open = psbfb_vm_open, 159 .close = psbfb_vm_close 160}; 161 162static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma) 163{ 164 struct psb_fbdev *fbdev = info->par; 165 struct psb_framebuffer *psbfb = &fbdev->pfb; 166 167 if (vma->vm_pgoff != 0) 168 return -EINVAL; 169 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) 170 return -EINVAL; 171 172 if (!psbfb->addr_space) 173 psbfb->addr_space = vma->vm_file->f_mapping; 174 /* 175 * If this is a GEM object then info->screen_base is the virtual 176 * kernel remapping of the object. FIXME: Review if this is 177 * suitable for our mmap work 178 */ 179 vma->vm_ops = &psbfb_vm_ops; 180 vma->vm_private_data = (void *)psbfb; 181 vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP; 182 return 0; 183} 184 185static int psbfb_ioctl(struct fb_info *info, unsigned int cmd, 186 unsigned long arg) 187{ 188 return -ENOTTY; 189} 190 191static struct fb_ops psbfb_ops = { 192 .owner = THIS_MODULE, 193 .fb_check_var = drm_fb_helper_check_var, 194 .fb_set_par = drm_fb_helper_set_par, 195 .fb_blank = drm_fb_helper_blank, 196 .fb_setcolreg = psbfb_setcolreg, 197 .fb_fillrect = cfb_fillrect, 198 .fb_copyarea = psbfb_copyarea, 199 .fb_imageblit = cfb_imageblit, 200 .fb_mmap = psbfb_mmap, 201 .fb_sync = psbfb_sync, 202 .fb_ioctl = psbfb_ioctl, 203}; 204 205static struct fb_ops psbfb_roll_ops = { 206 .owner = THIS_MODULE, 207 .fb_check_var = drm_fb_helper_check_var, 208 .fb_set_par = drm_fb_helper_set_par, 209 .fb_blank = drm_fb_helper_blank, 210 .fb_setcolreg = psbfb_setcolreg, 211 .fb_fillrect = cfb_fillrect, 212 .fb_copyarea = cfb_copyarea, 213 .fb_imageblit = cfb_imageblit, 214 .fb_pan_display = psbfb_pan, 215 .fb_mmap = psbfb_mmap, 216 .fb_ioctl = psbfb_ioctl, 217}; 218 219static struct fb_ops psbfb_unaccel_ops = { 220 .owner = THIS_MODULE, 221 .fb_check_var = drm_fb_helper_check_var, 222 .fb_set_par = drm_fb_helper_set_par, 223 .fb_blank = drm_fb_helper_blank, 224 .fb_setcolreg = psbfb_setcolreg, 225 .fb_fillrect = cfb_fillrect, 226 .fb_copyarea = cfb_copyarea, 227 .fb_imageblit = cfb_imageblit, 228 .fb_mmap = psbfb_mmap, 229 .fb_ioctl = psbfb_ioctl, 230}; 231 232/** 233 * psb_framebuffer_init - initialize a framebuffer 234 * @dev: our DRM device 235 * @fb: framebuffer to set up 236 * @mode_cmd: mode description 237 * @gt: backing object 238 * 239 * Configure and fill in the boilerplate for our frame buffer. Return 240 * 0 on success or an error code if we fail. 241 */ 242static int psb_framebuffer_init(struct drm_device *dev, 243 struct psb_framebuffer *fb, 244 struct drm_mode_fb_cmd2 *mode_cmd, 245 struct gtt_range *gt) 246{ 247 u32 bpp, depth; 248 int ret; 249 250 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp); 251 252 if (mode_cmd->pitches[0] & 63) 253 return -EINVAL; 254 switch (bpp) { 255 case 8: 256 case 16: 257 case 24: 258 case 32: 259 break; 260 default: 261 return -EINVAL; 262 } 263 drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd); 264 fb->gtt = gt; 265 ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs); 266 if (ret) { 267 dev_err(dev->dev, "framebuffer init failed: %d\n", ret); 268 return ret; 269 } 270 return 0; 271} 272 273/** 274 * psb_framebuffer_create - create a framebuffer backed by gt 275 * @dev: our DRM device 276 * @mode_cmd: the description of the requested mode 277 * @gt: the backing object 278 * 279 * Create a framebuffer object backed by the gt, and fill in the 280 * boilerplate required 281 * 282 * TODO: review object references 283 */ 284 285static struct drm_framebuffer *psb_framebuffer_create 286 (struct drm_device *dev, 287 struct drm_mode_fb_cmd2 *mode_cmd, 288 struct gtt_range *gt) 289{ 290 struct psb_framebuffer *fb; 291 int ret; 292 293 fb = kzalloc(sizeof(*fb), GFP_KERNEL); 294 if (!fb) 295 return ERR_PTR(-ENOMEM); 296 297 ret = psb_framebuffer_init(dev, fb, mode_cmd, gt); 298 if (ret) { 299 kfree(fb); 300 return ERR_PTR(ret); 301 } 302 return &fb->base; 303} 304 305/** 306 * psbfb_alloc - allocate frame buffer memory 307 * @dev: the DRM device 308 * @aligned_size: space needed 309 * @force: fall back to GEM buffers if need be 310 * 311 * Allocate the frame buffer. In the usual case we get a GTT range that 312 * is stolen memory backed and life is simple. If there isn't sufficient 313 * we fail as we don't have the virtual mapping space to really vmap it 314 * and the kernel console code can't handle non linear framebuffers. 315 * 316 * Re-address this as and if the framebuffer layer grows this ability. 317 */ 318static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size) 319{ 320 struct gtt_range *backing; 321 /* Begin by trying to use stolen memory backing */ 322 backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE); 323 if (backing) { 324 drm_gem_private_object_init(dev, &backing->gem, aligned_size); 325 return backing; 326 } 327 return NULL; 328} 329 330/** 331 * psbfb_create - create a framebuffer 332 * @fbdev: the framebuffer device 333 * @sizes: specification of the layout 334 * 335 * Create a framebuffer to the specifications provided 336 */ 337static int psbfb_create(struct psb_fbdev *fbdev, 338 struct drm_fb_helper_surface_size *sizes) 339{ 340 struct drm_device *dev = fbdev->psb_fb_helper.dev; 341 struct drm_psb_private *dev_priv = dev->dev_private; 342 struct fb_info *info; 343 struct drm_framebuffer *fb; 344 struct psb_framebuffer *psbfb = &fbdev->pfb; 345 struct drm_mode_fb_cmd2 mode_cmd; 346 struct device *device = &dev->pdev->dev; 347 int size; 348 int ret; 349 struct gtt_range *backing; 350 u32 bpp, depth; 351 int gtt_roll = 0; 352 int pitch_lines = 0; 353 354 mode_cmd.width = sizes->surface_width; 355 mode_cmd.height = sizes->surface_height; 356 bpp = sizes->surface_bpp; 357 depth = sizes->surface_depth; 358 359 /* No 24bit packed */ 360 if (bpp == 24) 361 bpp = 32; 362 363 do { 364 /* 365 * Acceleration via the GTT requires pitch to be 366 * power of two aligned. Preferably page but less 367 * is ok with some fonts 368 */ 369 mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096 >> pitch_lines); 370 371 size = mode_cmd.pitches[0] * mode_cmd.height; 372 size = ALIGN(size, PAGE_SIZE); 373 374 /* Allocate the fb in the GTT with stolen page backing */ 375 backing = psbfb_alloc(dev, size); 376 377 if (pitch_lines) 378 pitch_lines *= 2; 379 else 380 pitch_lines = 1; 381 gtt_roll++; 382 } while (backing == NULL && pitch_lines <= 16); 383 384 /* The final pitch we accepted if we succeeded */ 385 pitch_lines /= 2; 386 387 if (backing == NULL) { 388 /* 389 * We couldn't get the space we wanted, fall back to the 390 * display engine requirement instead. The HW requires 391 * the pitch to be 64 byte aligned 392 */ 393 394 gtt_roll = 0; /* Don't use GTT accelerated scrolling */ 395 pitch_lines = 64; 396 397 mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64); 398 399 size = mode_cmd.pitches[0] * mode_cmd.height; 400 size = ALIGN(size, PAGE_SIZE); 401 402 /* Allocate the framebuffer in the GTT with stolen page backing */ 403 backing = psbfb_alloc(dev, size); 404 if (backing == NULL) 405 return -ENOMEM; 406 } 407 408 memset(dev_priv->vram_addr + backing->offset, 0, size); 409 410 mutex_lock(&dev->struct_mutex); 411 412 info = framebuffer_alloc(0, device); 413 if (!info) { 414 ret = -ENOMEM; 415 goto out_err1; 416 } 417 info->par = fbdev; 418 419 mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); 420 421 ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing); 422 if (ret) 423 goto out_unref; 424 425 fb = &psbfb->base; 426 psbfb->fbdev = info; 427 428 fbdev->psb_fb_helper.fb = fb; 429 fbdev->psb_fb_helper.fbdev = info; 430 431 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); 432 strcpy(info->fix.id, "psbdrmfb"); 433 434 info->flags = FBINFO_DEFAULT; 435 if (dev_priv->ops->accel_2d && pitch_lines > 8) /* 2D engine */ 436 info->fbops = &psbfb_ops; 437 else if (gtt_roll) { /* GTT rolling seems best */ 438 info->fbops = &psbfb_roll_ops; 439 info->flags |= FBINFO_HWACCEL_YPAN; 440 } else /* Software */ 441 info->fbops = &psbfb_unaccel_ops; 442 443 ret = fb_alloc_cmap(&info->cmap, 256, 0); 444 if (ret) { 445 ret = -ENOMEM; 446 goto out_unref; 447 } 448 449 info->fix.smem_start = dev->mode_config.fb_base; 450 info->fix.smem_len = size; 451 info->fix.ywrapstep = gtt_roll; 452 info->fix.ypanstep = 0; 453 454 /* Accessed stolen memory directly */ 455 info->screen_base = dev_priv->vram_addr + backing->offset; 456 info->screen_size = size; 457 458 if (dev_priv->gtt.stolen_size) { 459 info->apertures = alloc_apertures(1); 460 if (!info->apertures) { 461 ret = -ENOMEM; 462 goto out_unref; 463 } 464 info->apertures->ranges[0].base = dev->mode_config.fb_base; 465 info->apertures->ranges[0].size = dev_priv->gtt.stolen_size; 466 } 467 468 drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper, 469 sizes->fb_width, sizes->fb_height); 470 471 info->fix.mmio_start = pci_resource_start(dev->pdev, 0); 472 info->fix.mmio_len = pci_resource_len(dev->pdev, 0); 473 474 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ 475 476 dev_dbg(dev->dev, "allocated %dx%d fb\n", 477 psbfb->base.width, psbfb->base.height); 478 479 mutex_unlock(&dev->struct_mutex); 480 return 0; 481out_unref: 482 if (backing->stolen) 483 psb_gtt_free_range(dev, backing); 484 else 485 drm_gem_object_unreference(&backing->gem); 486out_err1: 487 mutex_unlock(&dev->struct_mutex); 488 psb_gtt_free_range(dev, backing); 489 return ret; 490} 491 492/** 493 * psb_user_framebuffer_create - create framebuffer 494 * @dev: our DRM device 495 * @filp: client file 496 * @cmd: mode request 497 * 498 * Create a new framebuffer backed by a userspace GEM object 499 */ 500static struct drm_framebuffer *psb_user_framebuffer_create 501 (struct drm_device *dev, struct drm_file *filp, 502 struct drm_mode_fb_cmd2 *cmd) 503{ 504 struct gtt_range *r; 505 struct drm_gem_object *obj; 506 507 /* 508 * Find the GEM object and thus the gtt range object that is 509 * to back this space 510 */ 511 obj = drm_gem_object_lookup(dev, filp, cmd->handles[0]); 512 if (obj == NULL) 513 return ERR_PTR(-ENOENT); 514 515 /* Let the core code do all the work */ 516 r = container_of(obj, struct gtt_range, gem); 517 return psb_framebuffer_create(dev, cmd, r); 518} 519 520static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, 521 u16 blue, int regno) 522{ 523 struct gma_crtc *gma_crtc = to_gma_crtc(crtc); 524 525 gma_crtc->lut_r[regno] = red >> 8; 526 gma_crtc->lut_g[regno] = green >> 8; 527 gma_crtc->lut_b[regno] = blue >> 8; 528} 529 530static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red, 531 u16 *green, u16 *blue, int regno) 532{ 533 struct gma_crtc *gma_crtc = to_gma_crtc(crtc); 534 535 *red = gma_crtc->lut_r[regno] << 8; 536 *green = gma_crtc->lut_g[regno] << 8; 537 *blue = gma_crtc->lut_b[regno] << 8; 538} 539 540static int psbfb_probe(struct drm_fb_helper *helper, 541 struct drm_fb_helper_surface_size *sizes) 542{ 543 struct psb_fbdev *psb_fbdev = 544 container_of(helper, struct psb_fbdev, psb_fb_helper); 545 struct drm_device *dev = psb_fbdev->psb_fb_helper.dev; 546 struct drm_psb_private *dev_priv = dev->dev_private; 547 int bytespp; 548 549 bytespp = sizes->surface_bpp / 8; 550 if (bytespp == 3) /* no 24bit packed */ 551 bytespp = 4; 552 553 /* If the mode will not fit in 32bit then switch to 16bit to get 554 a console on full resolution. The X mode setting server will 555 allocate its own 32bit GEM framebuffer */ 556 if (ALIGN(sizes->fb_width * bytespp, 64) * sizes->fb_height > 557 dev_priv->vram_stolen_size) { 558 sizes->surface_bpp = 16; 559 sizes->surface_depth = 16; 560 } 561 562 return psbfb_create(psb_fbdev, sizes); 563} 564 565static const struct drm_fb_helper_funcs psb_fb_helper_funcs = { 566 .gamma_set = psbfb_gamma_set, 567 .gamma_get = psbfb_gamma_get, 568 .fb_probe = psbfb_probe, 569}; 570 571static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev) 572{ 573 struct fb_info *info; 574 struct psb_framebuffer *psbfb = &fbdev->pfb; 575 576 if (fbdev->psb_fb_helper.fbdev) { 577 info = fbdev->psb_fb_helper.fbdev; 578 unregister_framebuffer(info); 579 if (info->cmap.len) 580 fb_dealloc_cmap(&info->cmap); 581 framebuffer_release(info); 582 } 583 drm_fb_helper_fini(&fbdev->psb_fb_helper); 584 drm_framebuffer_unregister_private(&psbfb->base); 585 drm_framebuffer_cleanup(&psbfb->base); 586 587 if (psbfb->gtt) 588 drm_gem_object_unreference(&psbfb->gtt->gem); 589 return 0; 590} 591 592int psb_fbdev_init(struct drm_device *dev) 593{ 594 struct psb_fbdev *fbdev; 595 struct drm_psb_private *dev_priv = dev->dev_private; 596 597 fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL); 598 if (!fbdev) { 599 dev_err(dev->dev, "no memory\n"); 600 return -ENOMEM; 601 } 602 603 dev_priv->fbdev = fbdev; 604 605 drm_fb_helper_prepare(dev, &fbdev->psb_fb_helper, &psb_fb_helper_funcs); 606 607 drm_fb_helper_init(dev, &fbdev->psb_fb_helper, dev_priv->ops->crtcs, 608 INTELFB_CONN_LIMIT); 609 610 drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper); 611 612 /* disable all the possible outputs/crtcs before entering KMS mode */ 613 drm_helper_disable_unused_functions(dev); 614 615 drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32); 616 return 0; 617} 618 619static void psb_fbdev_fini(struct drm_device *dev) 620{ 621 struct drm_psb_private *dev_priv = dev->dev_private; 622 623 if (!dev_priv->fbdev) 624 return; 625 626 psb_fbdev_destroy(dev, dev_priv->fbdev); 627 kfree(dev_priv->fbdev); 628 dev_priv->fbdev = NULL; 629} 630 631static void psbfb_output_poll_changed(struct drm_device *dev) 632{ 633 struct drm_psb_private *dev_priv = dev->dev_private; 634 struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev; 635 drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper); 636} 637 638/** 639 * psb_user_framebuffer_create_handle - add hamdle to a framebuffer 640 * @fb: framebuffer 641 * @file_priv: our DRM file 642 * @handle: returned handle 643 * 644 * Our framebuffer object is a GTT range which also contains a GEM 645 * object. We need to turn it into a handle for userspace. GEM will do 646 * the work for us 647 */ 648static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb, 649 struct drm_file *file_priv, 650 unsigned int *handle) 651{ 652 struct psb_framebuffer *psbfb = to_psb_fb(fb); 653 struct gtt_range *r = psbfb->gtt; 654 return drm_gem_handle_create(file_priv, &r->gem, handle); 655} 656 657/** 658 * psb_user_framebuffer_destroy - destruct user created fb 659 * @fb: framebuffer 660 * 661 * User framebuffers are backed by GEM objects so all we have to do is 662 * clean up a bit and drop the reference, GEM will handle the fallout 663 */ 664static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb) 665{ 666 struct psb_framebuffer *psbfb = to_psb_fb(fb); 667 struct gtt_range *r = psbfb->gtt; 668 669 /* Let DRM do its clean up */ 670 drm_framebuffer_cleanup(fb); 671 /* We are no longer using the resource in GEM */ 672 drm_gem_object_unreference_unlocked(&r->gem); 673 kfree(fb); 674} 675 676static const struct drm_mode_config_funcs psb_mode_funcs = { 677 .fb_create = psb_user_framebuffer_create, 678 .output_poll_changed = psbfb_output_poll_changed, 679}; 680 681static int psb_create_backlight_property(struct drm_device *dev) 682{ 683 struct drm_psb_private *dev_priv = dev->dev_private; 684 struct drm_property *backlight; 685 686 if (dev_priv->backlight_property) 687 return 0; 688 689 backlight = drm_property_create_range(dev, 0, "backlight", 0, 100); 690 691 dev_priv->backlight_property = backlight; 692 693 return 0; 694} 695 696static void psb_setup_outputs(struct drm_device *dev) 697{ 698 struct drm_psb_private *dev_priv = dev->dev_private; 699 struct drm_connector *connector; 700 701 drm_mode_create_scaling_mode_property(dev); 702 psb_create_backlight_property(dev); 703 704 dev_priv->ops->output_init(dev); 705 706 list_for_each_entry(connector, &dev->mode_config.connector_list, 707 head) { 708 struct gma_encoder *gma_encoder = gma_attached_encoder(connector); 709 struct drm_encoder *encoder = &gma_encoder->base; 710 int crtc_mask = 0, clone_mask = 0; 711 712 /* valid crtcs */ 713 switch (gma_encoder->type) { 714 case INTEL_OUTPUT_ANALOG: 715 crtc_mask = (1 << 0); 716 clone_mask = (1 << INTEL_OUTPUT_ANALOG); 717 break; 718 case INTEL_OUTPUT_SDVO: 719 crtc_mask = dev_priv->ops->sdvo_mask; 720 clone_mask = (1 << INTEL_OUTPUT_SDVO); 721 break; 722 case INTEL_OUTPUT_LVDS: 723 crtc_mask = dev_priv->ops->lvds_mask; 724 clone_mask = (1 << INTEL_OUTPUT_LVDS); 725 break; 726 case INTEL_OUTPUT_MIPI: 727 crtc_mask = (1 << 0); 728 clone_mask = (1 << INTEL_OUTPUT_MIPI); 729 break; 730 case INTEL_OUTPUT_MIPI2: 731 crtc_mask = (1 << 2); 732 clone_mask = (1 << INTEL_OUTPUT_MIPI2); 733 break; 734 case INTEL_OUTPUT_HDMI: 735 crtc_mask = dev_priv->ops->hdmi_mask; 736 clone_mask = (1 << INTEL_OUTPUT_HDMI); 737 break; 738 case INTEL_OUTPUT_DISPLAYPORT: 739 crtc_mask = (1 << 0) | (1 << 1); 740 clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT); 741 break; 742 case INTEL_OUTPUT_EDP: 743 crtc_mask = (1 << 1); 744 clone_mask = (1 << INTEL_OUTPUT_EDP); 745 } 746 encoder->possible_crtcs = crtc_mask; 747 encoder->possible_clones = 748 gma_connector_clones(dev, clone_mask); 749 } 750} 751 752void psb_modeset_init(struct drm_device *dev) 753{ 754 struct drm_psb_private *dev_priv = dev->dev_private; 755 struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; 756 int i; 757 758 drm_mode_config_init(dev); 759 760 dev->mode_config.min_width = 0; 761 dev->mode_config.min_height = 0; 762 763 dev->mode_config.funcs = &psb_mode_funcs; 764 765 /* set memory base */ 766 /* Oaktrail and Poulsbo should use BAR 2*/ 767 pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *) 768 &(dev->mode_config.fb_base)); 769 770 /* num pipes is 2 for PSB but 1 for Mrst */ 771 for (i = 0; i < dev_priv->num_pipe; i++) 772 psb_intel_crtc_init(dev, i, mode_dev); 773 774 dev->mode_config.max_width = 4096; 775 dev->mode_config.max_height = 4096; 776 777 psb_setup_outputs(dev); 778 779 if (dev_priv->ops->errata) 780 dev_priv->ops->errata(dev); 781 782 dev_priv->modeset = true; 783} 784 785void psb_modeset_cleanup(struct drm_device *dev) 786{ 787 struct drm_psb_private *dev_priv = dev->dev_private; 788 if (dev_priv->modeset) { 789 mutex_lock(&dev->struct_mutex); 790 791 drm_kms_helper_poll_fini(dev); 792 psb_fbdev_fini(dev); 793 drm_mode_config_cleanup(dev); 794 795 mutex_unlock(&dev->struct_mutex); 796 } 797} 798