drivers/gpu/drm/gma500/framebuffer.c

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This source file includes following definitions.
psbfb_setcolreg
psbfb_pan
psbfb_vm_fault
psbfb_vm_open
psbfb_vm_close
psbfb_mmap
psb_framebuffer_init
psbfb_alloc
psbfb_create
psbfb_probe
psb_fbdev_destroy
psb_fbdev_init
psb_fbdev_fini
psb_setup_outputs
psb_modeset_init
psb_modeset_cleanup
   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /**************************************************************************
   3  * Copyright (c) 2007-2011, Intel Corporation.
   4  * All Rights Reserved.
   5  *
   6  **************************************************************************/
   7 
   8 #include <linux/console.h>
   9 #include <linux/delay.h>
  10 #include <linux/errno.h>
  11 #include <linux/init.h>
  12 #include <linux/kernel.h>
  13 #include <linux/mm.h>
  14 #include <linux/module.h>
  15 #include <linux/pfn_t.h>
  16 #include <linux/slab.h>
  17 #include <linux/string.h>
  18 #include <linux/tty.h>
  19 
  20 #include <drm/drm.h>
  21 #include <drm/drm_crtc.h>
  22 #include <drm/drm_fb_helper.h>
  23 #include <drm/drm_fourcc.h>
  24 #include <drm/drm_gem_framebuffer_helper.h>
  25 
  26 #include "framebuffer.h"
  27 #include "gtt.h"
  28 #include "psb_drv.h"
  29 #include "psb_intel_drv.h"
  30 #include "psb_intel_reg.h"
  31 
  32 static const struct drm_framebuffer_funcs psb_fb_funcs = {
  33         .destroy = drm_gem_fb_destroy,
  34         .create_handle = drm_gem_fb_create_handle,
  35 };
  36 
  37 #define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16)
  38 
  39 static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green,
  40                            unsigned blue, unsigned transp,
  41                            struct fb_info *info)
  42 {
  43         struct psb_fbdev *fbdev = info->par;
  44         struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb;
  45         uint32_t v;
  46 
  47         if (!fb)
  48                 return -ENOMEM;
  49 
  50         if (regno > 255)
  51                 return 1;
  52 
  53         red = CMAP_TOHW(red, info->var.red.length);
  54         blue = CMAP_TOHW(blue, info->var.blue.length);
  55         green = CMAP_TOHW(green, info->var.green.length);
  56         transp = CMAP_TOHW(transp, info->var.transp.length);
  57 
  58         v = (red << info->var.red.offset) |
  59             (green << info->var.green.offset) |
  60             (blue << info->var.blue.offset) |
  61             (transp << info->var.transp.offset);
  62 
  63         if (regno < 16) {
  64                 switch (fb->format->cpp[0] * 8) {
  65                 case 16:
  66                         ((uint32_t *) info->pseudo_palette)[regno] = v;
  67                         break;
  68                 case 24:
  69                 case 32:
  70                         ((uint32_t *) info->pseudo_palette)[regno] = v;
  71                         break;
  72                 }
  73         }
  74 
  75         return 0;
  76 }
  77 
  78 static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info)
  79 {
  80         struct psb_fbdev *fbdev = info->par;
  81         struct psb_framebuffer *psbfb = &fbdev->pfb;
  82         struct drm_device *dev = psbfb->base.dev;
  83         struct gtt_range *gtt = to_gtt_range(psbfb->base.obj[0]);
  84 
  85         /*
  86          *      We have to poke our nose in here. The core fb code assumes
  87          *      panning is part of the hardware that can be invoked before
  88          *      the actual fb is mapped. In our case that isn't quite true.
  89          */
  90         if (gtt->npage) {
  91                 /* GTT roll shifts in 4K pages, we need to shift the right
  92                    number of pages */
  93                 int pages = info->fix.line_length >> 12;
  94                 psb_gtt_roll(dev, gtt, var->yoffset * pages);
  95         }
  96         return 0;
  97 }
  98 
  99 static vm_fault_t psbfb_vm_fault(struct vm_fault *vmf)
 100 {
 101         struct vm_area_struct *vma = vmf->vma;
 102         struct psb_framebuffer *psbfb = vma->vm_private_data;
 103         struct drm_device *dev = psbfb->base.dev;
 104         struct drm_psb_private *dev_priv = dev->dev_private;
 105         struct gtt_range *gtt = to_gtt_range(psbfb->base.obj[0]);
 106         int page_num;
 107         int i;
 108         unsigned long address;
 109         vm_fault_t ret = VM_FAULT_SIGBUS;
 110         unsigned long pfn;
 111         unsigned long phys_addr = (unsigned long)dev_priv->stolen_base +
 112                                   gtt->offset;
 113 
 114         page_num = vma_pages(vma);
 115         address = vmf->address - (vmf->pgoff << PAGE_SHIFT);
 116 
 117         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 118 
 119         for (i = 0; i < page_num; i++) {
 120                 pfn = (phys_addr >> PAGE_SHIFT);
 121 
 122                 ret = vmf_insert_mixed(vma, address,
 123                                 __pfn_to_pfn_t(pfn, PFN_DEV));
 124                 if (unlikely(ret & VM_FAULT_ERROR))
 125                         break;
 126                 address += PAGE_SIZE;
 127                 phys_addr += PAGE_SIZE;
 128         }
 129         return ret;
 130 }
 131 
 132 static void psbfb_vm_open(struct vm_area_struct *vma)
 133 {
 134 }
 135 
 136 static void psbfb_vm_close(struct vm_area_struct *vma)
 137 {
 138 }
 139 
 140 static const struct vm_operations_struct psbfb_vm_ops = {
 141         .fault  = psbfb_vm_fault,
 142         .open   = psbfb_vm_open,
 143         .close  = psbfb_vm_close
 144 };
 145 
 146 static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 147 {
 148         struct psb_fbdev *fbdev = info->par;
 149         struct psb_framebuffer *psbfb = &fbdev->pfb;
 150 
 151         if (vma->vm_pgoff != 0)
 152                 return -EINVAL;
 153         if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
 154                 return -EINVAL;
 155 
 156         if (!psbfb->addr_space)
 157                 psbfb->addr_space = vma->vm_file->f_mapping;
 158         /*
 159          * If this is a GEM object then info->screen_base is the virtual
 160          * kernel remapping of the object. FIXME: Review if this is
 161          * suitable for our mmap work
 162          */
 163         vma->vm_ops = &psbfb_vm_ops;
 164         vma->vm_private_data = (void *)psbfb;
 165         vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP;
 166         return 0;
 167 }
 168 
 169 static struct fb_ops psbfb_ops = {
 170         .owner = THIS_MODULE,
 171         DRM_FB_HELPER_DEFAULT_OPS,
 172         .fb_setcolreg = psbfb_setcolreg,
 173         .fb_fillrect = drm_fb_helper_cfb_fillrect,
 174         .fb_copyarea = psbfb_copyarea,
 175         .fb_imageblit = drm_fb_helper_cfb_imageblit,
 176         .fb_mmap = psbfb_mmap,
 177         .fb_sync = psbfb_sync,
 178 };
 179 
 180 static struct fb_ops psbfb_roll_ops = {
 181         .owner = THIS_MODULE,
 182         DRM_FB_HELPER_DEFAULT_OPS,
 183         .fb_setcolreg = psbfb_setcolreg,
 184         .fb_fillrect = drm_fb_helper_cfb_fillrect,
 185         .fb_copyarea = drm_fb_helper_cfb_copyarea,
 186         .fb_imageblit = drm_fb_helper_cfb_imageblit,
 187         .fb_pan_display = psbfb_pan,
 188         .fb_mmap = psbfb_mmap,
 189 };
 190 
 191 static struct fb_ops psbfb_unaccel_ops = {
 192         .owner = THIS_MODULE,
 193         DRM_FB_HELPER_DEFAULT_OPS,
 194         .fb_setcolreg = psbfb_setcolreg,
 195         .fb_fillrect = drm_fb_helper_cfb_fillrect,
 196         .fb_copyarea = drm_fb_helper_cfb_copyarea,
 197         .fb_imageblit = drm_fb_helper_cfb_imageblit,
 198         .fb_mmap = psbfb_mmap,
 199 };
 200 
 201 /**
 202  *      psb_framebuffer_init    -       initialize a framebuffer
 203  *      @dev: our DRM device
 204  *      @fb: framebuffer to set up
 205  *      @mode_cmd: mode description
 206  *      @gt: backing object
 207  *
 208  *      Configure and fill in the boilerplate for our frame buffer. Return
 209  *      0 on success or an error code if we fail.
 210  */
 211 static int psb_framebuffer_init(struct drm_device *dev,
 212                                         struct psb_framebuffer *fb,
 213                                         const struct drm_mode_fb_cmd2 *mode_cmd,
 214                                         struct gtt_range *gt)
 215 {
 216         const struct drm_format_info *info;
 217         int ret;
 218 
 219         /*
 220          * Reject unknown formats, YUV formats, and formats with more than
 221          * 4 bytes per pixel.
 222          */
 223         info = drm_get_format_info(dev, mode_cmd);
 224         if (!info || !info->depth || info->cpp[0] > 4)
 225                 return -EINVAL;
 226 
 227         if (mode_cmd->pitches[0] & 63)
 228                 return -EINVAL;
 229 
 230         drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
 231         fb->base.obj[0] = &gt->gem;
 232         ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs);
 233         if (ret) {
 234                 dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
 235                 return ret;
 236         }
 237         return 0;
 238 }
 239 
 240 /**
 241  *      psb_framebuffer_create  -       create a framebuffer backed by gt
 242  *      @dev: our DRM device
 243  *      @mode_cmd: the description of the requested mode
 244  *      @gt: the backing object
 245  *
 246  *      Create a framebuffer object backed by the gt, and fill in the
 247  *      boilerplate required
 248  *
 249  *      TODO: review object references
 250  */
 251 
 252 static struct drm_framebuffer *psb_framebuffer_create
 253                         (struct drm_device *dev,
 254                          const struct drm_mode_fb_cmd2 *mode_cmd,
 255                          struct gtt_range *gt)
 256 {
 257         struct psb_framebuffer *fb;
 258         int ret;
 259 
 260         fb = kzalloc(sizeof(*fb), GFP_KERNEL);
 261         if (!fb)
 262                 return ERR_PTR(-ENOMEM);
 263 
 264         ret = psb_framebuffer_init(dev, fb, mode_cmd, gt);
 265         if (ret) {
 266                 kfree(fb);
 267                 return ERR_PTR(ret);
 268         }
 269         return &fb->base;
 270 }
 271 
 272 /**
 273  *      psbfb_alloc             -       allocate frame buffer memory
 274  *      @dev: the DRM device
 275  *      @aligned_size: space needed
 276  *
 277  *      Allocate the frame buffer. In the usual case we get a GTT range that
 278  *      is stolen memory backed and life is simple. If there isn't sufficient
 279  *      we fail as we don't have the virtual mapping space to really vmap it
 280  *      and the kernel console code can't handle non linear framebuffers.
 281  *
 282  *      Re-address this as and if the framebuffer layer grows this ability.
 283  */
 284 static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size)
 285 {
 286         struct gtt_range *backing;
 287         /* Begin by trying to use stolen memory backing */
 288         backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE);
 289         if (backing) {
 290                 drm_gem_private_object_init(dev, &backing->gem, aligned_size);
 291                 return backing;
 292         }
 293         return NULL;
 294 }
 295 
 296 /**
 297  *      psbfb_create            -       create a framebuffer
 298  *      @fbdev: the framebuffer device
 299  *      @sizes: specification of the layout
 300  *
 301  *      Create a framebuffer to the specifications provided
 302  */
 303 static int psbfb_create(struct psb_fbdev *fbdev,
 304                                 struct drm_fb_helper_surface_size *sizes)
 305 {
 306         struct drm_device *dev = fbdev->psb_fb_helper.dev;
 307         struct drm_psb_private *dev_priv = dev->dev_private;
 308         struct fb_info *info;
 309         struct drm_framebuffer *fb;
 310         struct psb_framebuffer *psbfb = &fbdev->pfb;
 311         struct drm_mode_fb_cmd2 mode_cmd;
 312         int size;
 313         int ret;
 314         struct gtt_range *backing;
 315         u32 bpp, depth;
 316         int gtt_roll = 0;
 317         int pitch_lines = 0;
 318 
 319         mode_cmd.width = sizes->surface_width;
 320         mode_cmd.height = sizes->surface_height;
 321         bpp = sizes->surface_bpp;
 322         depth = sizes->surface_depth;
 323 
 324         /* No 24bit packed */
 325         if (bpp == 24)
 326                 bpp = 32;
 327 
 328         do {
 329                 /*
 330                  * Acceleration via the GTT requires pitch to be
 331                  * power of two aligned. Preferably page but less
 332                  * is ok with some fonts
 333                  */
 334                 mode_cmd.pitches[0] =  ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096 >> pitch_lines);
 335 
 336                 size = mode_cmd.pitches[0] * mode_cmd.height;
 337                 size = ALIGN(size, PAGE_SIZE);
 338 
 339                 /* Allocate the fb in the GTT with stolen page backing */
 340                 backing = psbfb_alloc(dev, size);
 341 
 342                 if (pitch_lines)
 343                         pitch_lines *= 2;
 344                 else
 345                         pitch_lines = 1;
 346                 gtt_roll++;
 347         } while (backing == NULL && pitch_lines <= 16);
 348 
 349         /* The final pitch we accepted if we succeeded */
 350         pitch_lines /= 2;
 351 
 352         if (backing == NULL) {
 353                 /*
 354                  *      We couldn't get the space we wanted, fall back to the
 355                  *      display engine requirement instead.  The HW requires
 356                  *      the pitch to be 64 byte aligned
 357                  */
 358 
 359                 gtt_roll = 0;   /* Don't use GTT accelerated scrolling */
 360                 pitch_lines = 64;
 361 
 362                 mode_cmd.pitches[0] =  ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64);
 363 
 364                 size = mode_cmd.pitches[0] * mode_cmd.height;
 365                 size = ALIGN(size, PAGE_SIZE);
 366 
 367                 /* Allocate the framebuffer in the GTT with stolen page backing */
 368                 backing = psbfb_alloc(dev, size);
 369                 if (backing == NULL)
 370                         return -ENOMEM;
 371         }
 372 
 373         memset(dev_priv->vram_addr + backing->offset, 0, size);
 374 
 375         info = drm_fb_helper_alloc_fbi(&fbdev->psb_fb_helper);
 376         if (IS_ERR(info)) {
 377                 ret = PTR_ERR(info);
 378                 goto out;
 379         }
 380 
 381         mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
 382 
 383         ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing);
 384         if (ret)
 385                 goto out;
 386 
 387         fb = &psbfb->base;
 388         psbfb->fbdev = info;
 389 
 390         fbdev->psb_fb_helper.fb = fb;
 391 
 392         if (dev_priv->ops->accel_2d && pitch_lines > 8) /* 2D engine */
 393                 info->fbops = &psbfb_ops;
 394         else if (gtt_roll) {    /* GTT rolling seems best */
 395                 info->fbops = &psbfb_roll_ops;
 396                 info->flags |= FBINFO_HWACCEL_YPAN;
 397         } else  /* Software */
 398                 info->fbops = &psbfb_unaccel_ops;
 399 
 400         info->fix.smem_start = dev->mode_config.fb_base;
 401         info->fix.smem_len = size;
 402         info->fix.ywrapstep = gtt_roll;
 403         info->fix.ypanstep = 0;
 404 
 405         /* Accessed stolen memory directly */
 406         info->screen_base = dev_priv->vram_addr + backing->offset;
 407         info->screen_size = size;
 408 
 409         if (dev_priv->gtt.stolen_size) {
 410                 info->apertures->ranges[0].base = dev->mode_config.fb_base;
 411                 info->apertures->ranges[0].size = dev_priv->gtt.stolen_size;
 412         }
 413 
 414         drm_fb_helper_fill_info(info, &fbdev->psb_fb_helper, sizes);
 415 
 416         info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
 417         info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
 418 
 419         /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 420 
 421         dev_dbg(dev->dev, "allocated %dx%d fb\n",
 422                                         psbfb->base.width, psbfb->base.height);
 423 
 424         return 0;
 425 out:
 426         psb_gtt_free_range(dev, backing);
 427         return ret;
 428 }
 429 
 430 /**
 431  *      psb_user_framebuffer_create     -       create framebuffer
 432  *      @dev: our DRM device
 433  *      @filp: client file
 434  *      @cmd: mode request
 435  *
 436  *      Create a new framebuffer backed by a userspace GEM object
 437  */
 438 static struct drm_framebuffer *psb_user_framebuffer_create
 439                         (struct drm_device *dev, struct drm_file *filp,
 440                          const struct drm_mode_fb_cmd2 *cmd)
 441 {
 442         struct gtt_range *r;
 443         struct drm_gem_object *obj;
 444 
 445         /*
 446          *      Find the GEM object and thus the gtt range object that is
 447          *      to back this space
 448          */
 449         obj = drm_gem_object_lookup(filp, cmd->handles[0]);
 450         if (obj == NULL)
 451                 return ERR_PTR(-ENOENT);
 452 
 453         /* Let the core code do all the work */
 454         r = container_of(obj, struct gtt_range, gem);
 455         return psb_framebuffer_create(dev, cmd, r);
 456 }
 457 
 458 static int psbfb_probe(struct drm_fb_helper *helper,
 459                                 struct drm_fb_helper_surface_size *sizes)
 460 {
 461         struct psb_fbdev *psb_fbdev =
 462                 container_of(helper, struct psb_fbdev, psb_fb_helper);
 463         struct drm_device *dev = psb_fbdev->psb_fb_helper.dev;
 464         struct drm_psb_private *dev_priv = dev->dev_private;
 465         unsigned int fb_size;
 466         int bytespp;
 467 
 468         bytespp = sizes->surface_bpp / 8;
 469         if (bytespp == 3)       /* no 24bit packed */
 470                 bytespp = 4;
 471 
 472         /* If the mode will not fit in 32bit then switch to 16bit to get
 473            a console on full resolution. The X mode setting server will
 474            allocate its own 32bit GEM framebuffer */
 475         fb_size = ALIGN(sizes->surface_width * bytespp, 64) *
 476                   sizes->surface_height;
 477         fb_size = ALIGN(fb_size, PAGE_SIZE);
 478 
 479         if (fb_size > dev_priv->vram_stolen_size) {
 480                 sizes->surface_bpp = 16;
 481                 sizes->surface_depth = 16;
 482         }
 483 
 484         return psbfb_create(psb_fbdev, sizes);
 485 }
 486 
 487 static const struct drm_fb_helper_funcs psb_fb_helper_funcs = {
 488         .fb_probe = psbfb_probe,
 489 };
 490 
 491 static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev)
 492 {
 493         struct psb_framebuffer *psbfb = &fbdev->pfb;
 494 
 495         drm_fb_helper_unregister_fbi(&fbdev->psb_fb_helper);
 496 
 497         drm_fb_helper_fini(&fbdev->psb_fb_helper);
 498         drm_framebuffer_unregister_private(&psbfb->base);
 499         drm_framebuffer_cleanup(&psbfb->base);
 500 
 501         if (psbfb->base.obj[0])
 502                 drm_gem_object_put_unlocked(psbfb->base.obj[0]);
 503         return 0;
 504 }
 505 
 506 int psb_fbdev_init(struct drm_device *dev)
 507 {
 508         struct psb_fbdev *fbdev;
 509         struct drm_psb_private *dev_priv = dev->dev_private;
 510         int ret;
 511 
 512         fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL);
 513         if (!fbdev) {
 514                 dev_err(dev->dev, "no memory\n");
 515                 return -ENOMEM;
 516         }
 517 
 518         dev_priv->fbdev = fbdev;
 519 
 520         drm_fb_helper_prepare(dev, &fbdev->psb_fb_helper, &psb_fb_helper_funcs);
 521 
 522         ret = drm_fb_helper_init(dev, &fbdev->psb_fb_helper,
 523                                  INTELFB_CONN_LIMIT);
 524         if (ret)
 525                 goto free;
 526 
 527         ret = drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper);
 528         if (ret)
 529                 goto fini;
 530 
 531         /* disable all the possible outputs/crtcs before entering KMS mode */
 532         drm_helper_disable_unused_functions(dev);
 533 
 534         ret = drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32);
 535         if (ret)
 536                 goto fini;
 537 
 538         return 0;
 539 
 540 fini:
 541         drm_fb_helper_fini(&fbdev->psb_fb_helper);
 542 free:
 543         kfree(fbdev);
 544         return ret;
 545 }
 546 
 547 static void psb_fbdev_fini(struct drm_device *dev)
 548 {
 549         struct drm_psb_private *dev_priv = dev->dev_private;
 550 
 551         if (!dev_priv->fbdev)
 552                 return;
 553 
 554         psb_fbdev_destroy(dev, dev_priv->fbdev);
 555         kfree(dev_priv->fbdev);
 556         dev_priv->fbdev = NULL;
 557 }
 558 
 559 static const struct drm_mode_config_funcs psb_mode_funcs = {
 560         .fb_create = psb_user_framebuffer_create,
 561         .output_poll_changed = drm_fb_helper_output_poll_changed,
 562 };
 563 
 564 static void psb_setup_outputs(struct drm_device *dev)
 565 {
 566         struct drm_psb_private *dev_priv = dev->dev_private;
 567         struct drm_connector *connector;
 568 
 569         drm_mode_create_scaling_mode_property(dev);
 570 
 571         /* It is ok for this to fail - we just don't get backlight control */
 572         if (!dev_priv->backlight_property)
 573                 dev_priv->backlight_property = drm_property_create_range(dev, 0,
 574                                                         "backlight", 0, 100);
 575         dev_priv->ops->output_init(dev);
 576 
 577         list_for_each_entry(connector, &dev->mode_config.connector_list,
 578                             head) {
 579                 struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
 580                 struct drm_encoder *encoder = &gma_encoder->base;
 581                 int crtc_mask = 0, clone_mask = 0;
 582 
 583                 /* valid crtcs */
 584                 switch (gma_encoder->type) {
 585                 case INTEL_OUTPUT_ANALOG:
 586                         crtc_mask = (1 << 0);
 587                         clone_mask = (1 << INTEL_OUTPUT_ANALOG);
 588                         break;
 589                 case INTEL_OUTPUT_SDVO:
 590                         crtc_mask = dev_priv->ops->sdvo_mask;
 591                         clone_mask = (1 << INTEL_OUTPUT_SDVO);
 592                         break;
 593                 case INTEL_OUTPUT_LVDS:
 594                         crtc_mask = dev_priv->ops->lvds_mask;
 595                         clone_mask = (1 << INTEL_OUTPUT_LVDS);
 596                         break;
 597                 case INTEL_OUTPUT_MIPI:
 598                         crtc_mask = (1 << 0);
 599                         clone_mask = (1 << INTEL_OUTPUT_MIPI);
 600                         break;
 601                 case INTEL_OUTPUT_MIPI2:
 602                         crtc_mask = (1 << 2);
 603                         clone_mask = (1 << INTEL_OUTPUT_MIPI2);
 604                         break;
 605                 case INTEL_OUTPUT_HDMI:
 606                         crtc_mask = dev_priv->ops->hdmi_mask;
 607                         clone_mask = (1 << INTEL_OUTPUT_HDMI);
 608                         break;
 609                 case INTEL_OUTPUT_DISPLAYPORT:
 610                         crtc_mask = (1 << 0) | (1 << 1);
 611                         clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT);
 612                         break;
 613                 case INTEL_OUTPUT_EDP:
 614                         crtc_mask = (1 << 1);
 615                         clone_mask = (1 << INTEL_OUTPUT_EDP);
 616                 }
 617                 encoder->possible_crtcs = crtc_mask;
 618                 encoder->possible_clones =
 619                     gma_connector_clones(dev, clone_mask);
 620         }
 621 }
 622 
 623 void psb_modeset_init(struct drm_device *dev)
 624 {
 625         struct drm_psb_private *dev_priv = dev->dev_private;
 626         struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
 627         int i;
 628 
 629         drm_mode_config_init(dev);
 630 
 631         dev->mode_config.min_width = 0;
 632         dev->mode_config.min_height = 0;
 633 
 634         dev->mode_config.funcs = &psb_mode_funcs;
 635 
 636         /* set memory base */
 637         /* Oaktrail and Poulsbo should use BAR 2*/
 638         pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *)
 639                                         &(dev->mode_config.fb_base));
 640 
 641         /* num pipes is 2 for PSB but 1 for Mrst */
 642         for (i = 0; i < dev_priv->num_pipe; i++)
 643                 psb_intel_crtc_init(dev, i, mode_dev);
 644 
 645         dev->mode_config.max_width = 4096;
 646         dev->mode_config.max_height = 4096;
 647 
 648         psb_setup_outputs(dev);
 649 
 650         if (dev_priv->ops->errata)
 651                 dev_priv->ops->errata(dev);
 652 
 653         dev_priv->modeset = true;
 654 }
 655 
 656 void psb_modeset_cleanup(struct drm_device *dev)
 657 {
 658         struct drm_psb_private *dev_priv = dev->dev_private;
 659         if (dev_priv->modeset) {
 660                 drm_kms_helper_poll_fini(dev);
 661                 psb_fbdev_fini(dev);
 662                 drm_mode_config_cleanup(dev);
 663         }
 664 }
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/gpu/drm/gma500/framebuffer.c

DEFINITIONS
