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 request_mem_succeeded = false; 46 static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC; 47 48 static struct fb_var_screeninfo efifb_defined = { 49 .activate = FB_ACTIVATE_NOW, 50 .height = -1, 51 .width = -1, 52 .right_margin = 32, 53 .upper_margin = 16, 54 .lower_margin = 4, 55 .vsync_len = 4, 56 .vmode = FB_VMODE_NONINTERLACED, 57 }; 58 59 static struct fb_fix_screeninfo efifb_fix = { 60 .id = "EFI VGA", 61 .type = FB_TYPE_PACKED_PIXELS, 62 .accel = FB_ACCEL_NONE, 63 .visual = FB_VISUAL_TRUECOLOR, 64 }; 65 66 static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green, 67 unsigned blue, unsigned transp, 68 struct fb_info *info) 69 { 70 /* 71 * Set a single color register. The values supplied are 72 * already rounded down to the hardware's capabilities 73 * (according to the entries in the `var' structure). Return 74 * != 0 for invalid regno. 75 */ 76 77 if (regno >= info->cmap.len) 78 return 1; 79 80 if (regno < 16) { 81 red >>= 16 - info->var.red.length; 82 green >>= 16 - info->var.green.length; 83 blue >>= 16 - info->var.blue.length; 84 ((u32 *)(info->pseudo_palette))[regno] = 85 (red << info->var.red.offset) | 86 (green << info->var.green.offset) | 87 (blue << info->var.blue.offset); 88 } 89 return 0; 90 } 91 92 /* 93 * If fbcon deffered console takeover is configured, the intent is for the 94 * framebuffer to show the boot graphics (e.g. vendor logo) until there is some 95 * (error) message to display. But the boot graphics may have been destroyed by 96 * e.g. option ROM output, detect this and restore the boot graphics. 97 */ 98 #if defined CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER && \ 99 defined CONFIG_ACPI_BGRT 100 static void efifb_copy_bmp(u8 *src, u32 *dst, int width, struct screen_info *si) 101 { 102 u8 r, g, b; 103 104 while (width--) { 105 b = *src++; 106 g = *src++; 107 r = *src++; 108 *dst++ = (r << si->red_pos) | 109 (g << si->green_pos) | 110 (b << si->blue_pos); 111 } 112 } 113 114 #ifdef CONFIG_X86 115 /* 116 * On x86 some firmwares use a low non native resolution for the display when 117 * they have shown some text messages. While keeping the bgrt filled with info 118 * for the native resolution. If the bgrt image intended for the native 119 * resolution still fits, it will be displayed very close to the right edge of 120 * the display looking quite bad. This function checks for this. 121 */ 122 static bool efifb_bgrt_sanity_check(struct screen_info *si, u32 bmp_width) 123 { 124 static const int default_resolutions[][2] = { 125 { 800, 600 }, 126 { 1024, 768 }, 127 { 1280, 1024 }, 128 }; 129 u32 i, right_margin; 130 131 for (i = 0; i < ARRAY_SIZE(default_resolutions); i++) { 132 if (default_resolutions[i][0] == si->lfb_width && 133 default_resolutions[i][1] == si->lfb_height) 134 break; 135 } 136 /* If not a default resolution used for textmode, this should be fine */ 137 if (i >= ARRAY_SIZE(default_resolutions)) 138 return true; 139 140 /* If the right margin is 5 times smaller then the left one, reject */ 141 right_margin = si->lfb_width - (bgrt_tab.image_offset_x + bmp_width); 142 if (right_margin < (bgrt_tab.image_offset_x / 5)) 143 return false; 144 145 return true; 146 } 147 #else 148 static bool efifb_bgrt_sanity_check(struct screen_info *si, u32 bmp_width) 149 { 150 return true; 151 } 152 #endif 153 154 static void efifb_show_boot_graphics(struct fb_info *info) 155 { 156 u32 bmp_width, bmp_height, bmp_pitch, screen_pitch, dst_x, y, src_y; 157 struct screen_info *si = &screen_info; 158 struct bmp_file_header *file_header; 159 struct bmp_dib_header *dib_header; 160 void *bgrt_image = NULL; 161 u8 *dst = info->screen_base; 162 163 if (!bgrt_tab.image_address) { 164 pr_info("efifb: No BGRT, not showing boot graphics\n"); 165 return; 166 } 167 168 /* Avoid flashing the logo if we're going to print std probe messages */ 169 if (console_loglevel > CONSOLE_LOGLEVEL_QUIET) 170 return; 171 172 /* bgrt_tab.status is unreliable, so we don't check it */ 173 174 if (si->lfb_depth != 32) { 175 pr_info("efifb: not 32 bits, not showing boot graphics\n"); 176 return; 177 } 178 179 bgrt_image = memremap(bgrt_tab.image_address, bgrt_image_size, 180 MEMREMAP_WB); 181 if (!bgrt_image) { 182 pr_warn("efifb: Ignoring BGRT: failed to map image memory\n"); 183 return; 184 } 185 186 if (bgrt_image_size < (sizeof(*file_header) + sizeof(*dib_header))) 187 goto error; 188 189 file_header = bgrt_image; 190 if (file_header->id != 0x4d42 || file_header->reserved != 0) 191 goto error; 192 193 dib_header = bgrt_image + sizeof(*file_header); 194 if (dib_header->dib_header_size != 40 || dib_header->width < 0 || 195 dib_header->planes != 1 || dib_header->bpp != 24 || 196 dib_header->compression != 0) 197 goto error; 198 199 bmp_width = dib_header->width; 200 bmp_height = abs(dib_header->height); 201 bmp_pitch = round_up(3 * bmp_width, 4); 202 screen_pitch = si->lfb_linelength; 203 204 if ((file_header->bitmap_offset + bmp_pitch * bmp_height) > 205 bgrt_image_size) 206 goto error; 207 208 if ((bgrt_tab.image_offset_x + bmp_width) > si->lfb_width || 209 (bgrt_tab.image_offset_y + bmp_height) > si->lfb_height) 210 goto error; 211 212 if (!efifb_bgrt_sanity_check(si, bmp_width)) 213 goto error; 214 215 pr_info("efifb: showing boot graphics\n"); 216 217 for (y = 0; y < si->lfb_height; y++, dst += si->lfb_linelength) { 218 /* Only background? */ 219 if (y < bgrt_tab.image_offset_y || 220 y >= (bgrt_tab.image_offset_y + bmp_height)) { 221 memset(dst, 0, 4 * si->lfb_width); 222 continue; 223 } 224 225 src_y = y - bgrt_tab.image_offset_y; 226 /* Positive header height means upside down row order */ 227 if (dib_header->height > 0) 228 src_y = (bmp_height - 1) - src_y; 229 230 memset(dst, 0, bgrt_tab.image_offset_x * 4); 231 dst_x = bgrt_tab.image_offset_x; 232 efifb_copy_bmp(bgrt_image + file_header->bitmap_offset + 233 src_y * bmp_pitch, 234 (u32 *)dst + dst_x, bmp_width, si); 235 dst_x += bmp_width; 236 memset((u32 *)dst + dst_x, 0, (si->lfb_width - dst_x) * 4); 237 } 238 239 memunmap(bgrt_image); 240 return; 241 242 error: 243 memunmap(bgrt_image); 244 pr_warn("efifb: Ignoring BGRT: unexpected or invalid BMP data\n"); 245 } 246 #else 247 static inline void efifb_show_boot_graphics(struct fb_info *info) {} 248 #endif 249 250 static void efifb_destroy(struct fb_info *info) 251 { 252 if (info->screen_base) { 253 if (mem_flags & (EFI_MEMORY_UC | EFI_MEMORY_WC)) 254 iounmap(info->screen_base); 255 else 256 memunmap(info->screen_base); 257 } 258 if (request_mem_succeeded) 259 release_mem_region(info->apertures->ranges[0].base, 260 info->apertures->ranges[0].size); 261 fb_dealloc_cmap(&info->cmap); 262 } 263 264 static struct fb_ops efifb_ops = { 265 .owner = THIS_MODULE, 266 .fb_destroy = efifb_destroy, 267 .fb_setcolreg = efifb_setcolreg, 268 .fb_fillrect = cfb_fillrect, 269 .fb_copyarea = cfb_copyarea, 270 .fb_imageblit = cfb_imageblit, 271 }; 272 273 static int efifb_setup(char *options) 274 { 275 char *this_opt; 276 277 if (options && *options) { 278 while ((this_opt = strsep(&options, ",")) != NULL) { 279 if (!*this_opt) continue; 280 281 efifb_setup_from_dmi(&screen_info, this_opt); 282 283 if (!strncmp(this_opt, "base:", 5)) 284 screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0); 285 else if (!strncmp(this_opt, "stride:", 7)) 286 screen_info.lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4; 287 else if (!strncmp(this_opt, "height:", 7)) 288 screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0); 289 else if (!strncmp(this_opt, "width:", 6)) 290 screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); 291 else if (!strcmp(this_opt, "nowc")) 292 mem_flags &= ~EFI_MEMORY_WC; 293 } 294 } 295 296 return 0; 297 } 298 299 static inline bool fb_base_is_valid(void) 300 { 301 if (screen_info.lfb_base) 302 return true; 303 304 if (!(screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE)) 305 return false; 306 307 if (screen_info.ext_lfb_base) 308 return true; 309 310 return false; 311 } 312 313 #define efifb_attr_decl(name, fmt) \ 314 static ssize_t name##_show(struct device *dev, \ 315 struct device_attribute *attr, \ 316 char *buf) \ 317 { \ 318 return sprintf(buf, fmt "\n", (screen_info.lfb_##name)); \ 319 } \ 320 static DEVICE_ATTR_RO(name) 321 322 efifb_attr_decl(base, "0x%x"); 323 efifb_attr_decl(linelength, "%u"); 324 efifb_attr_decl(height, "%u"); 325 efifb_attr_decl(width, "%u"); 326 efifb_attr_decl(depth, "%u"); 327 328 static struct attribute *efifb_attrs[] = { 329 &dev_attr_base.attr, 330 &dev_attr_linelength.attr, 331 &dev_attr_width.attr, 332 &dev_attr_height.attr, 333 &dev_attr_depth.attr, 334 NULL 335 }; 336 ATTRIBUTE_GROUPS(efifb); 337 338 static bool pci_dev_disabled; /* FB base matches BAR of a disabled device */ 339 340 static struct pci_dev *efifb_pci_dev; /* dev with BAR covering the efifb */ 341 static struct resource *bar_resource; 342 static u64 bar_offset; 343 344 static int efifb_probe(struct platform_device *dev) 345 { 346 struct fb_info *info; 347 int err, orientation; 348 unsigned int size_vmode; 349 unsigned int size_remap; 350 unsigned int size_total; 351 char *option = NULL; 352 efi_memory_desc_t md; 353 354 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled) 355 return -ENODEV; 356 357 if (fb_get_options("efifb", &option)) 358 return -ENODEV; 359 efifb_setup(option); 360 361 /* We don't get linelength from UGA Draw Protocol, only from 362 * EFI Graphics Protocol. So if it's not in DMI, and it's not 363 * passed in from the user, we really can't use the framebuffer. 364 */ 365 if (!screen_info.lfb_linelength) 366 return -ENODEV; 367 368 if (!screen_info.lfb_depth) 369 screen_info.lfb_depth = 32; 370 if (!screen_info.pages) 371 screen_info.pages = 1; 372 if (!fb_base_is_valid()) { 373 printk(KERN_DEBUG "efifb: invalid framebuffer address\n"); 374 return -ENODEV; 375 } 376 printk(KERN_INFO "efifb: probing for efifb\n"); 377 378 /* just assume they're all unset if any are */ 379 if (!screen_info.blue_size) { 380 screen_info.blue_size = 8; 381 screen_info.blue_pos = 0; 382 screen_info.green_size = 8; 383 screen_info.green_pos = 8; 384 screen_info.red_size = 8; 385 screen_info.red_pos = 16; 386 screen_info.rsvd_size = 8; 387 screen_info.rsvd_pos = 24; 388 } 389 390 efifb_fix.smem_start = screen_info.lfb_base; 391 392 if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) { 393 u64 ext_lfb_base; 394 395 ext_lfb_base = (u64)(unsigned long)screen_info.ext_lfb_base << 32; 396 efifb_fix.smem_start |= ext_lfb_base; 397 } 398 399 if (bar_resource && 400 bar_resource->start + bar_offset != efifb_fix.smem_start) { 401 dev_info(&efifb_pci_dev->dev, 402 "BAR has moved, updating efifb address\n"); 403 efifb_fix.smem_start = bar_resource->start + bar_offset; 404 } 405 406 efifb_defined.bits_per_pixel = screen_info.lfb_depth; 407 efifb_defined.xres = screen_info.lfb_width; 408 efifb_defined.yres = screen_info.lfb_height; 409 efifb_fix.line_length = screen_info.lfb_linelength; 410 411 /* size_vmode -- that is the amount of memory needed for the 412 * used video mode, i.e. the minimum amount of 413 * memory we need. */ 414 size_vmode = efifb_defined.yres * efifb_fix.line_length; 415 416 /* size_total -- all video memory we have. Used for 417 * entries, ressource allocation and bounds 418 * checking. */ 419 size_total = screen_info.lfb_size; 420 if (size_total < size_vmode) 421 size_total = size_vmode; 422 423 /* size_remap -- the amount of video memory we are going to 424 * use for efifb. With modern cards it is no 425 * option to simply use size_total as that 426 * wastes plenty of kernel address space. */ 427 size_remap = size_vmode * 2; 428 if (size_remap > size_total) 429 size_remap = size_total; 430 if (size_remap % PAGE_SIZE) 431 size_remap += PAGE_SIZE - (size_remap % PAGE_SIZE); 432 efifb_fix.smem_len = size_remap; 433 434 if (request_mem_region(efifb_fix.smem_start, size_remap, "efifb")) { 435 request_mem_succeeded = true; 436 } else { 437 /* We cannot make this fatal. Sometimes this comes from magic 438 spaces our resource handlers simply don't know about */ 439 pr_warn("efifb: cannot reserve video memory at 0x%lx\n", 440 efifb_fix.smem_start); 441 } 442 443 info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev); 444 if (!info) { 445 pr_err("efifb: cannot allocate framebuffer\n"); 446 err = -ENOMEM; 447 goto err_release_mem; 448 } 449 platform_set_drvdata(dev, info); 450 info->pseudo_palette = info->par; 451 info->par = NULL; 452 453 info->apertures = alloc_apertures(1); 454 if (!info->apertures) { 455 err = -ENOMEM; 456 goto err_release_fb; 457 } 458 info->apertures->ranges[0].base = efifb_fix.smem_start; 459 info->apertures->ranges[0].size = size_remap; 460 461 if (!efi_mem_desc_lookup(efifb_fix.smem_start, &md)) { 462 if ((efifb_fix.smem_start + efifb_fix.smem_len) > 463 (md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT))) { 464 pr_err("efifb: video memory @ 0x%lx spans multiple EFI memory regions\n", 465 efifb_fix.smem_start); 466 err = -EIO; 467 goto err_release_fb; 468 } 469 /* 470 * If the UEFI memory map covers the efifb region, we may only 471 * remap it using the attributes the memory map prescribes. 472 */ 473 mem_flags |= EFI_MEMORY_WT | EFI_MEMORY_WB; 474 mem_flags &= md.attribute; 475 } 476 if (mem_flags & EFI_MEMORY_WC) 477 info->screen_base = ioremap_wc(efifb_fix.smem_start, 478 efifb_fix.smem_len); 479 else if (mem_flags & EFI_MEMORY_UC) 480 info->screen_base = ioremap(efifb_fix.smem_start, 481 efifb_fix.smem_len); 482 else if (mem_flags & EFI_MEMORY_WT) 483 info->screen_base = memremap(efifb_fix.smem_start, 484 efifb_fix.smem_len, MEMREMAP_WT); 485 else if (mem_flags & EFI_MEMORY_WB) 486 info->screen_base = memremap(efifb_fix.smem_start, 487 efifb_fix.smem_len, MEMREMAP_WB); 488 if (!info->screen_base) { 489 pr_err("efifb: abort, cannot remap video memory 0x%x @ 0x%lx\n", 490 efifb_fix.smem_len, efifb_fix.smem_start); 491 err = -EIO; 492 goto err_release_fb; 493 } 494 495 efifb_show_boot_graphics(info); 496 497 pr_info("efifb: framebuffer at 0x%lx, using %dk, total %dk\n", 498 efifb_fix.smem_start, size_remap/1024, size_total/1024); 499 pr_info("efifb: mode is %dx%dx%d, linelength=%d, pages=%d\n", 500 efifb_defined.xres, efifb_defined.yres, 501 efifb_defined.bits_per_pixel, efifb_fix.line_length, 502 screen_info.pages); 503 504 efifb_defined.xres_virtual = efifb_defined.xres; 505 efifb_defined.yres_virtual = efifb_fix.smem_len / 506 efifb_fix.line_length; 507 pr_info("efifb: scrolling: redraw\n"); 508 efifb_defined.yres_virtual = efifb_defined.yres; 509 510 /* some dummy values for timing to make fbset happy */ 511 efifb_defined.pixclock = 10000000 / efifb_defined.xres * 512 1000 / efifb_defined.yres; 513 efifb_defined.left_margin = (efifb_defined.xres / 8) & 0xf8; 514 efifb_defined.hsync_len = (efifb_defined.xres / 8) & 0xf8; 515 516 efifb_defined.red.offset = screen_info.red_pos; 517 efifb_defined.red.length = screen_info.red_size; 518 efifb_defined.green.offset = screen_info.green_pos; 519 efifb_defined.green.length = screen_info.green_size; 520 efifb_defined.blue.offset = screen_info.blue_pos; 521 efifb_defined.blue.length = screen_info.blue_size; 522 efifb_defined.transp.offset = screen_info.rsvd_pos; 523 efifb_defined.transp.length = screen_info.rsvd_size; 524 525 pr_info("efifb: %s: " 526 "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n", 527 "Truecolor", 528 screen_info.rsvd_size, 529 screen_info.red_size, 530 screen_info.green_size, 531 screen_info.blue_size, 532 screen_info.rsvd_pos, 533 screen_info.red_pos, 534 screen_info.green_pos, 535 screen_info.blue_pos); 536 537 efifb_fix.ypanstep = 0; 538 efifb_fix.ywrapstep = 0; 539 540 info->fbops = &efifb_ops; 541 info->var = efifb_defined; 542 info->fix = efifb_fix; 543 info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE; 544 545 orientation = drm_get_panel_orientation_quirk(efifb_defined.xres, 546 efifb_defined.yres); 547 switch (orientation) { 548 default: 549 info->fbcon_rotate_hint = FB_ROTATE_UR; 550 break; 551 case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: 552 info->fbcon_rotate_hint = FB_ROTATE_UD; 553 break; 554 case DRM_MODE_PANEL_ORIENTATION_LEFT_UP: 555 info->fbcon_rotate_hint = FB_ROTATE_CCW; 556 break; 557 case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: 558 info->fbcon_rotate_hint = FB_ROTATE_CW; 559 break; 560 } 561 562 err = sysfs_create_groups(&dev->dev.kobj, efifb_groups); 563 if (err) { 564 pr_err("efifb: cannot add sysfs attrs\n"); 565 goto err_unmap; 566 } 567 err = fb_alloc_cmap(&info->cmap, 256, 0); 568 if (err < 0) { 569 pr_err("efifb: cannot allocate colormap\n"); 570 goto err_groups; 571 } 572 err = register_framebuffer(info); 573 if (err < 0) { 574 pr_err("efifb: cannot register framebuffer\n"); 575 goto err_fb_dealoc; 576 } 577 fb_info(info, "%s frame buffer device\n", info->fix.id); 578 return 0; 579 580 err_fb_dealoc: 581 fb_dealloc_cmap(&info->cmap); 582 err_groups: 583 sysfs_remove_groups(&dev->dev.kobj, efifb_groups); 584 err_unmap: 585 if (mem_flags & (EFI_MEMORY_UC | EFI_MEMORY_WC)) 586 iounmap(info->screen_base); 587 else 588 memunmap(info->screen_base); 589 err_release_fb: 590 framebuffer_release(info); 591 err_release_mem: 592 if (request_mem_succeeded) 593 release_mem_region(efifb_fix.smem_start, size_total); 594 return err; 595 } 596 597 static int efifb_remove(struct platform_device *pdev) 598 { 599 struct fb_info *info = platform_get_drvdata(pdev); 600 601 unregister_framebuffer(info); 602 sysfs_remove_groups(&pdev->dev.kobj, efifb_groups); 603 framebuffer_release(info); 604 605 return 0; 606 } 607 608 static struct platform_driver efifb_driver = { 609 .driver = { 610 .name = "efi-framebuffer", 611 }, 612 .probe = efifb_probe, 613 .remove = efifb_remove, 614 }; 615 616 builtin_platform_driver(efifb_driver); 617 618 #if defined(CONFIG_PCI) 619 620 static void record_efifb_bar_resource(struct pci_dev *dev, int idx, u64 offset) 621 { 622 u16 word; 623 624 efifb_pci_dev = dev; 625 626 pci_read_config_word(dev, PCI_COMMAND, &word); 627 if (!(word & PCI_COMMAND_MEMORY)) { 628 pci_dev_disabled = true; 629 dev_err(&dev->dev, 630 "BAR %d: assigned to efifb but device is disabled!\n", 631 idx); 632 return; 633 } 634 635 bar_resource = &dev->resource[idx]; 636 bar_offset = offset; 637 638 dev_info(&dev->dev, "BAR %d: assigned to efifb\n", idx); 639 } 640 641 static void efifb_fixup_resources(struct pci_dev *dev) 642 { 643 u64 base = screen_info.lfb_base; 644 u64 size = screen_info.lfb_size; 645 int i; 646 647 if (efifb_pci_dev || screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) 648 return; 649 650 if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) 651 base |= (u64)screen_info.ext_lfb_base << 32; 652 653 if (!base) 654 return; 655 656 for (i = 0; i <= PCI_STD_RESOURCE_END; i++) { 657 struct resource *res = &dev->resource[i]; 658 659 if (!(res->flags & IORESOURCE_MEM)) 660 continue; 661 662 if (res->start <= base && res->end >= base + size - 1) { 663 record_efifb_bar_resource(dev, i, base - res->start); 664 break; 665 } 666 } 667 } 668 DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY, 669 16, efifb_fixup_resources); 670 671 #endif 672