1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Framebuffer driver for EFI/UEFI based system 4 * 5 * (c) 2006 Edgar Hucek <gimli@dark-green.com> 6 * Original efi driver written by Gerd Knorr <kraxel@goldbach.in-berlin.de> 7 * 8 */ 9 10 #include <linux/kernel.h> 11 #include <linux/efi.h> 12 #include <linux/efi-bgrt.h> 13 #include <linux/errno.h> 14 #include <linux/fb.h> 15 #include <linux/pci.h> 16 #include <linux/platform_device.h> 17 #include <linux/printk.h> 18 #include <linux/screen_info.h> 19 #include <video/vga.h> 20 #include <asm/efi.h> 21 #include <drm/drm_utils.h> /* For drm_get_panel_orientation_quirk */ 22 #include <drm/drm_connector.h> /* For DRM_MODE_PANEL_ORIENTATION_* */ 23 24 struct bmp_file_header { 25 u16 id; 26 u32 file_size; 27 u32 reserved; 28 u32 bitmap_offset; 29 } __packed; 30 31 struct bmp_dib_header { 32 u32 dib_header_size; 33 s32 width; 34 s32 height; 35 u16 planes; 36 u16 bpp; 37 u32 compression; 38 u32 bitmap_size; 39 u32 horz_resolution; 40 u32 vert_resolution; 41 u32 colors_used; 42 u32 colors_important; 43 } __packed; 44 45 static bool use_bgrt = true; 46 static bool request_mem_succeeded = false; 47 static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC; 48 49 static struct fb_var_screeninfo efifb_defined = { 50 .activate = FB_ACTIVATE_NOW, 51 .height = -1, 52 .width = -1, 53 .right_margin = 32, 54 .upper_margin = 16, 55 .lower_margin = 4, 56 .vsync_len = 4, 57 .vmode = FB_VMODE_NONINTERLACED, 58 }; 59 60 static struct fb_fix_screeninfo efifb_fix = { 61 .id = "EFI VGA", 62 .type = FB_TYPE_PACKED_PIXELS, 63 .accel = FB_ACCEL_NONE, 64 .visual = FB_VISUAL_TRUECOLOR, 65 }; 66 67 static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green, 68 unsigned blue, unsigned transp, 69 struct fb_info *info) 70 { 71 /* 72 * Set a single color register. The values supplied are 73 * already rounded down to the hardware's capabilities 74 * (according to the entries in the `var' structure). Return 75 * != 0 for invalid regno. 76 */ 77 78 if (regno >= info->cmap.len) 79 return 1; 80 81 if (regno < 16) { 82 red >>= 16 - info->var.red.length; 83 green >>= 16 - info->var.green.length; 84 blue >>= 16 - info->var.blue.length; 85 ((u32 *)(info->pseudo_palette))[regno] = 86 (red << info->var.red.offset) | 87 (green << info->var.green.offset) | 88 (blue << info->var.blue.offset); 89 } 90 return 0; 91 } 92 93 /* 94 * If fbcon deffered console takeover is configured, the intent is for the 95 * framebuffer to show the boot graphics (e.g. vendor logo) until there is some 96 * (error) message to display. But the boot graphics may have been destroyed by 97 * e.g. option ROM output, detect this and restore the boot graphics. 98 */ 99 #if defined CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER && \ 100 defined CONFIG_ACPI_BGRT 101 static void efifb_copy_bmp(u8 *src, u32 *dst, int width, struct screen_info *si) 102 { 103 u8 r, g, b; 104 105 while (width--) { 106 b = *src++; 107 g = *src++; 108 r = *src++; 109 *dst++ = (r << si->red_pos) | 110 (g << si->green_pos) | 111 (b << si->blue_pos); 112 } 113 } 114 115 #ifdef CONFIG_X86 116 /* 117 * On x86 some firmwares use a low non native resolution for the display when 118 * they have shown some text messages. While keeping the bgrt filled with info 119 * for the native resolution. If the bgrt image intended for the native 120 * resolution still fits, it will be displayed very close to the right edge of 121 * the display looking quite bad. This function checks for this. 122 */ 123 static bool efifb_bgrt_sanity_check(struct screen_info *si, u32 bmp_width) 124 { 125 /* 126 * All x86 firmwares horizontally center the image (the yoffset 127 * calculations differ between boards, but xoffset is predictable). 128 */ 129 u32 expected_xoffset = (si->lfb_width - bmp_width) / 2; 130 131 return bgrt_tab.image_offset_x == expected_xoffset; 132 } 133 #else 134 static bool efifb_bgrt_sanity_check(struct screen_info *si, u32 bmp_width) 135 { 136 return true; 137 } 138 #endif 139 140 static void efifb_show_boot_graphics(struct fb_info *info) 141 { 142 u32 bmp_width, bmp_height, bmp_pitch, dst_x, y, src_y; 143 struct screen_info *si = &screen_info; 144 struct bmp_file_header *file_header; 145 struct bmp_dib_header *dib_header; 146 void *bgrt_image = NULL; 147 u8 *dst = info->screen_base; 148 149 if (!use_bgrt) 150 return; 151 152 if (!bgrt_tab.image_address) { 153 pr_info("efifb: No BGRT, not showing boot graphics\n"); 154 return; 155 } 156 157 if (bgrt_tab.status & 0x06) { 158 pr_info("efifb: BGRT rotation bits set, not showing boot graphics\n"); 159 return; 160 } 161 162 /* Avoid flashing the logo if we're going to print std probe messages */ 163 if (console_loglevel > CONSOLE_LOGLEVEL_QUIET) 164 return; 165 166 /* bgrt_tab.status is unreliable, so we don't check it */ 167 168 if (si->lfb_depth != 32) { 169 pr_info("efifb: not 32 bits, not showing boot graphics\n"); 170 return; 171 } 172 173 bgrt_image = memremap(bgrt_tab.image_address, bgrt_image_size, 174 MEMREMAP_WB); 175 if (!bgrt_image) { 176 pr_warn("efifb: Ignoring BGRT: failed to map image memory\n"); 177 return; 178 } 179 180 if (bgrt_image_size < (sizeof(*file_header) + sizeof(*dib_header))) 181 goto error; 182 183 file_header = bgrt_image; 184 if (file_header->id != 0x4d42 || file_header->reserved != 0) 185 goto error; 186 187 dib_header = bgrt_image + sizeof(*file_header); 188 if (dib_header->dib_header_size != 40 || dib_header->width < 0 || 189 dib_header->planes != 1 || dib_header->bpp != 24 || 190 dib_header->compression != 0) 191 goto error; 192 193 bmp_width = dib_header->width; 194 bmp_height = abs(dib_header->height); 195 bmp_pitch = round_up(3 * bmp_width, 4); 196 197 if ((file_header->bitmap_offset + bmp_pitch * bmp_height) > 198 bgrt_image_size) 199 goto error; 200 201 if ((bgrt_tab.image_offset_x + bmp_width) > si->lfb_width || 202 (bgrt_tab.image_offset_y + bmp_height) > si->lfb_height) 203 goto error; 204 205 if (!efifb_bgrt_sanity_check(si, bmp_width)) 206 goto error; 207 208 pr_info("efifb: showing boot graphics\n"); 209 210 for (y = 0; y < si->lfb_height; y++, dst += si->lfb_linelength) { 211 /* Only background? */ 212 if (y < bgrt_tab.image_offset_y || 213 y >= (bgrt_tab.image_offset_y + bmp_height)) { 214 memset(dst, 0, 4 * si->lfb_width); 215 continue; 216 } 217 218 src_y = y - bgrt_tab.image_offset_y; 219 /* Positive header height means upside down row order */ 220 if (dib_header->height > 0) 221 src_y = (bmp_height - 1) - src_y; 222 223 memset(dst, 0, bgrt_tab.image_offset_x * 4); 224 dst_x = bgrt_tab.image_offset_x; 225 efifb_copy_bmp(bgrt_image + file_header->bitmap_offset + 226 src_y * bmp_pitch, 227 (u32 *)dst + dst_x, bmp_width, si); 228 dst_x += bmp_width; 229 memset((u32 *)dst + dst_x, 0, (si->lfb_width - dst_x) * 4); 230 } 231 232 memunmap(bgrt_image); 233 return; 234 235 error: 236 memunmap(bgrt_image); 237 pr_warn("efifb: Ignoring BGRT: unexpected or invalid BMP data\n"); 238 } 239 #else 240 static inline void efifb_show_boot_graphics(struct fb_info *info) {} 241 #endif 242 243 static void efifb_destroy(struct fb_info *info) 244 { 245 if (info->screen_base) { 246 if (mem_flags & (EFI_MEMORY_UC | EFI_MEMORY_WC)) 247 iounmap(info->screen_base); 248 else 249 memunmap(info->screen_base); 250 } 251 if (request_mem_succeeded) 252 release_mem_region(info->apertures->ranges[0].base, 253 info->apertures->ranges[0].size); 254 fb_dealloc_cmap(&info->cmap); 255 } 256 257 static const struct fb_ops efifb_ops = { 258 .owner = THIS_MODULE, 259 .fb_destroy = efifb_destroy, 260 .fb_setcolreg = efifb_setcolreg, 261 .fb_fillrect = cfb_fillrect, 262 .fb_copyarea = cfb_copyarea, 263 .fb_imageblit = cfb_imageblit, 264 }; 265 266 static int efifb_setup(char *options) 267 { 268 char *this_opt; 269 270 if (options && *options) { 271 while ((this_opt = strsep(&options, ",")) != NULL) { 272 if (!*this_opt) continue; 273 274 efifb_setup_from_dmi(&screen_info, this_opt); 275 276 if (!strncmp(this_opt, "base:", 5)) 277 screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0); 278 else if (!strncmp(this_opt, "stride:", 7)) 279 screen_info.lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4; 280 else if (!strncmp(this_opt, "height:", 7)) 281 screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0); 282 else if (!strncmp(this_opt, "width:", 6)) 283 screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); 284 else if (!strcmp(this_opt, "nowc")) 285 mem_flags &= ~EFI_MEMORY_WC; 286 else if (!strcmp(this_opt, "nobgrt")) 287 use_bgrt = false; 288 } 289 } 290 291 return 0; 292 } 293 294 static inline bool fb_base_is_valid(void) 295 { 296 if (screen_info.lfb_base) 297 return true; 298 299 if (!(screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE)) 300 return false; 301 302 if (screen_info.ext_lfb_base) 303 return true; 304 305 return false; 306 } 307 308 #define efifb_attr_decl(name, fmt) \ 309 static ssize_t name##_show(struct device *dev, \ 310 struct device_attribute *attr, \ 311 char *buf) \ 312 { \ 313 return sprintf(buf, fmt "\n", (screen_info.lfb_##name)); \ 314 } \ 315 static DEVICE_ATTR_RO(name) 316 317 efifb_attr_decl(base, "0x%x"); 318 efifb_attr_decl(linelength, "%u"); 319 efifb_attr_decl(height, "%u"); 320 efifb_attr_decl(width, "%u"); 321 efifb_attr_decl(depth, "%u"); 322 323 static struct attribute *efifb_attrs[] = { 324 &dev_attr_base.attr, 325 &dev_attr_linelength.attr, 326 &dev_attr_width.attr, 327 &dev_attr_height.attr, 328 &dev_attr_depth.attr, 329 NULL 330 }; 331 ATTRIBUTE_GROUPS(efifb); 332 333 static bool pci_dev_disabled; /* FB base matches BAR of a disabled device */ 334 335 static struct pci_dev *efifb_pci_dev; /* dev with BAR covering the efifb */ 336 static struct resource *bar_resource; 337 static u64 bar_offset; 338 339 static int efifb_probe(struct platform_device *dev) 340 { 341 struct fb_info *info; 342 int err, orientation; 343 unsigned int size_vmode; 344 unsigned int size_remap; 345 unsigned int size_total; 346 char *option = NULL; 347 efi_memory_desc_t md; 348 349 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled) 350 return -ENODEV; 351 352 if (fb_get_options("efifb", &option)) 353 return -ENODEV; 354 efifb_setup(option); 355 356 /* We don't get linelength from UGA Draw Protocol, only from 357 * EFI Graphics Protocol. So if it's not in DMI, and it's not 358 * passed in from the user, we really can't use the framebuffer. 359 */ 360 if (!screen_info.lfb_linelength) 361 return -ENODEV; 362 363 if (!screen_info.lfb_depth) 364 screen_info.lfb_depth = 32; 365 if (!screen_info.pages) 366 screen_info.pages = 1; 367 if (!fb_base_is_valid()) { 368 printk(KERN_DEBUG "efifb: invalid framebuffer address\n"); 369 return -ENODEV; 370 } 371 printk(KERN_INFO "efifb: probing for efifb\n"); 372 373 /* just assume they're all unset if any are */ 374 if (!screen_info.blue_size) { 375 screen_info.blue_size = 8; 376 screen_info.blue_pos = 0; 377 screen_info.green_size = 8; 378 screen_info.green_pos = 8; 379 screen_info.red_size = 8; 380 screen_info.red_pos = 16; 381 screen_info.rsvd_size = 8; 382 screen_info.rsvd_pos = 24; 383 } 384 385 efifb_fix.smem_start = screen_info.lfb_base; 386 387 if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) { 388 u64 ext_lfb_base; 389 390 ext_lfb_base = (u64)(unsigned long)screen_info.ext_lfb_base << 32; 391 efifb_fix.smem_start |= ext_lfb_base; 392 } 393 394 if (bar_resource && 395 bar_resource->start + bar_offset != efifb_fix.smem_start) { 396 dev_info(&efifb_pci_dev->dev, 397 "BAR has moved, updating efifb address\n"); 398 efifb_fix.smem_start = bar_resource->start + bar_offset; 399 } 400 401 efifb_defined.bits_per_pixel = screen_info.lfb_depth; 402 efifb_defined.xres = screen_info.lfb_width; 403 efifb_defined.yres = screen_info.lfb_height; 404 efifb_fix.line_length = screen_info.lfb_linelength; 405 406 /* size_vmode -- that is the amount of memory needed for the 407 * used video mode, i.e. the minimum amount of 408 * memory we need. */ 409 size_vmode = efifb_defined.yres * efifb_fix.line_length; 410 411 /* size_total -- all video memory we have. Used for 412 * entries, ressource allocation and bounds 413 * checking. */ 414 size_total = screen_info.lfb_size; 415 if (size_total < size_vmode) 416 size_total = size_vmode; 417 418 /* size_remap -- the amount of video memory we are going to 419 * use for efifb. With modern cards it is no 420 * option to simply use size_total as that 421 * wastes plenty of kernel address space. */ 422 size_remap = size_vmode * 2; 423 if (size_remap > size_total) 424 size_remap = size_total; 425 if (size_remap % PAGE_SIZE) 426 size_remap += PAGE_SIZE - (size_remap % PAGE_SIZE); 427 efifb_fix.smem_len = size_remap; 428 429 if (request_mem_region(efifb_fix.smem_start, size_remap, "efifb")) { 430 request_mem_succeeded = true; 431 } else { 432 /* We cannot make this fatal. Sometimes this comes from magic 433 spaces our resource handlers simply don't know about */ 434 pr_warn("efifb: cannot reserve video memory at 0x%lx\n", 435 efifb_fix.smem_start); 436 } 437 438 info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev); 439 if (!info) { 440 err = -ENOMEM; 441 goto err_release_mem; 442 } 443 platform_set_drvdata(dev, info); 444 info->pseudo_palette = info->par; 445 info->par = NULL; 446 447 info->apertures = alloc_apertures(1); 448 if (!info->apertures) { 449 err = -ENOMEM; 450 goto err_release_fb; 451 } 452 info->apertures->ranges[0].base = efifb_fix.smem_start; 453 info->apertures->ranges[0].size = size_remap; 454 455 if (efi_enabled(EFI_MEMMAP) && 456 !efi_mem_desc_lookup(efifb_fix.smem_start, &md)) { 457 if ((efifb_fix.smem_start + efifb_fix.smem_len) > 458 (md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT))) { 459 pr_err("efifb: video memory @ 0x%lx spans multiple EFI memory regions\n", 460 efifb_fix.smem_start); 461 err = -EIO; 462 goto err_release_fb; 463 } 464 /* 465 * If the UEFI memory map covers the efifb region, we may only 466 * remap it using the attributes the memory map prescribes. 467 */ 468 md.attribute &= EFI_MEMORY_UC | EFI_MEMORY_WC | 469 EFI_MEMORY_WT | EFI_MEMORY_WB; 470 if (md.attribute) { 471 mem_flags |= EFI_MEMORY_WT | EFI_MEMORY_WB; 472 mem_flags &= md.attribute; 473 } 474 } 475 if (mem_flags & EFI_MEMORY_WC) 476 info->screen_base = ioremap_wc(efifb_fix.smem_start, 477 efifb_fix.smem_len); 478 else if (mem_flags & EFI_MEMORY_UC) 479 info->screen_base = ioremap(efifb_fix.smem_start, 480 efifb_fix.smem_len); 481 else if (mem_flags & EFI_MEMORY_WT) 482 info->screen_base = memremap(efifb_fix.smem_start, 483 efifb_fix.smem_len, MEMREMAP_WT); 484 else if (mem_flags & EFI_MEMORY_WB) 485 info->screen_base = memremap(efifb_fix.smem_start, 486 efifb_fix.smem_len, MEMREMAP_WB); 487 if (!info->screen_base) { 488 pr_err("efifb: abort, cannot remap video memory 0x%x @ 0x%lx\n", 489 efifb_fix.smem_len, efifb_fix.smem_start); 490 err = -EIO; 491 goto err_release_fb; 492 } 493 494 efifb_show_boot_graphics(info); 495 496 pr_info("efifb: framebuffer at 0x%lx, using %dk, total %dk\n", 497 efifb_fix.smem_start, size_remap/1024, size_total/1024); 498 pr_info("efifb: mode is %dx%dx%d, linelength=%d, pages=%d\n", 499 efifb_defined.xres, efifb_defined.yres, 500 efifb_defined.bits_per_pixel, efifb_fix.line_length, 501 screen_info.pages); 502 503 efifb_defined.xres_virtual = efifb_defined.xres; 504 efifb_defined.yres_virtual = efifb_fix.smem_len / 505 efifb_fix.line_length; 506 pr_info("efifb: scrolling: redraw\n"); 507 efifb_defined.yres_virtual = efifb_defined.yres; 508 509 /* some dummy values for timing to make fbset happy */ 510 efifb_defined.pixclock = 10000000 / efifb_defined.xres * 511 1000 / efifb_defined.yres; 512 efifb_defined.left_margin = (efifb_defined.xres / 8) & 0xf8; 513 efifb_defined.hsync_len = (efifb_defined.xres / 8) & 0xf8; 514 515 efifb_defined.red.offset = screen_info.red_pos; 516 efifb_defined.red.length = screen_info.red_size; 517 efifb_defined.green.offset = screen_info.green_pos; 518 efifb_defined.green.length = screen_info.green_size; 519 efifb_defined.blue.offset = screen_info.blue_pos; 520 efifb_defined.blue.length = screen_info.blue_size; 521 efifb_defined.transp.offset = screen_info.rsvd_pos; 522 efifb_defined.transp.length = screen_info.rsvd_size; 523 524 pr_info("efifb: %s: " 525 "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n", 526 "Truecolor", 527 screen_info.rsvd_size, 528 screen_info.red_size, 529 screen_info.green_size, 530 screen_info.blue_size, 531 screen_info.rsvd_pos, 532 screen_info.red_pos, 533 screen_info.green_pos, 534 screen_info.blue_pos); 535 536 efifb_fix.ypanstep = 0; 537 efifb_fix.ywrapstep = 0; 538 539 info->fbops = &efifb_ops; 540 info->var = efifb_defined; 541 info->fix = efifb_fix; 542 info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE; 543 544 orientation = drm_get_panel_orientation_quirk(efifb_defined.xres, 545 efifb_defined.yres); 546 switch (orientation) { 547 default: 548 info->fbcon_rotate_hint = FB_ROTATE_UR; 549 break; 550 case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: 551 info->fbcon_rotate_hint = FB_ROTATE_UD; 552 break; 553 case DRM_MODE_PANEL_ORIENTATION_LEFT_UP: 554 info->fbcon_rotate_hint = FB_ROTATE_CCW; 555 break; 556 case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: 557 info->fbcon_rotate_hint = FB_ROTATE_CW; 558 break; 559 } 560 561 err = sysfs_create_groups(&dev->dev.kobj, efifb_groups); 562 if (err) { 563 pr_err("efifb: cannot add sysfs attrs\n"); 564 goto err_unmap; 565 } 566 err = fb_alloc_cmap(&info->cmap, 256, 0); 567 if (err < 0) { 568 pr_err("efifb: cannot allocate colormap\n"); 569 goto err_groups; 570 } 571 err = register_framebuffer(info); 572 if (err < 0) { 573 pr_err("efifb: cannot register framebuffer\n"); 574 goto err_fb_dealoc; 575 } 576 fb_info(info, "%s frame buffer device\n", info->fix.id); 577 return 0; 578 579 err_fb_dealoc: 580 fb_dealloc_cmap(&info->cmap); 581 err_groups: 582 sysfs_remove_groups(&dev->dev.kobj, efifb_groups); 583 err_unmap: 584 if (mem_flags & (EFI_MEMORY_UC | EFI_MEMORY_WC)) 585 iounmap(info->screen_base); 586 else 587 memunmap(info->screen_base); 588 err_release_fb: 589 framebuffer_release(info); 590 err_release_mem: 591 if (request_mem_succeeded) 592 release_mem_region(efifb_fix.smem_start, size_total); 593 return err; 594 } 595 596 static int efifb_remove(struct platform_device *pdev) 597 { 598 struct fb_info *info = platform_get_drvdata(pdev); 599 600 unregister_framebuffer(info); 601 sysfs_remove_groups(&pdev->dev.kobj, efifb_groups); 602 framebuffer_release(info); 603 604 return 0; 605 } 606 607 static struct platform_driver efifb_driver = { 608 .driver = { 609 .name = "efi-framebuffer", 610 }, 611 .probe = efifb_probe, 612 .remove = efifb_remove, 613 }; 614 615 builtin_platform_driver(efifb_driver); 616 617 #if defined(CONFIG_PCI) 618 619 static void record_efifb_bar_resource(struct pci_dev *dev, int idx, u64 offset) 620 { 621 u16 word; 622 623 efifb_pci_dev = dev; 624 625 pci_read_config_word(dev, PCI_COMMAND, &word); 626 if (!(word & PCI_COMMAND_MEMORY)) { 627 pci_dev_disabled = true; 628 dev_err(&dev->dev, 629 "BAR %d: assigned to efifb but device is disabled!\n", 630 idx); 631 return; 632 } 633 634 bar_resource = &dev->resource[idx]; 635 bar_offset = offset; 636 637 dev_info(&dev->dev, "BAR %d: assigned to efifb\n", idx); 638 } 639 640 static void efifb_fixup_resources(struct pci_dev *dev) 641 { 642 u64 base = screen_info.lfb_base; 643 u64 size = screen_info.lfb_size; 644 int i; 645 646 if (efifb_pci_dev || screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) 647 return; 648 649 if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) 650 base |= (u64)screen_info.ext_lfb_base << 32; 651 652 if (!base) 653 return; 654 655 for (i = 0; i < PCI_STD_NUM_BARS; i++) { 656 struct resource *res = &dev->resource[i]; 657 658 if (!(res->flags & IORESOURCE_MEM)) 659 continue; 660 661 if (res->start <= base && res->end >= base + size - 1) { 662 record_efifb_bar_resource(dev, i, base - res->start); 663 break; 664 } 665 } 666 } 667 DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY, 668 16, efifb_fixup_resources); 669 670 #endif 671