| 1 | /* |
|---|---|
| 2 | * Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com> |
| 3 | * |
| 4 | * This file is subject to the terms and conditions of the GNU General Public |
| 5 | * License. See the file COPYING in the main directory of this archive |
| 6 | * for more details. |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | #include <linux/fb.h> |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/pci.h> |
| 13 | #include <linux/vgaarb.h> |
| 14 | #include <asm/fb.h> |
| 15 | |
| 16 | pgprot_t pgprot_framebuffer(pgprot_t prot, |
| 17 | unsigned long vm_start, unsigned long vm_end, |
| 18 | unsigned long offset) |
| 19 | { |
| 20 | pgprot_val(prot) &= ~_PAGE_CACHE_MASK; |
| 21 | if (boot_cpu_data.x86 > 3) |
| 22 | pgprot_val(prot) |= cachemode2protval(pcm: _PAGE_CACHE_MODE_UC_MINUS); |
| 23 | |
| 24 | return prot; |
| 25 | } |
| 26 | EXPORT_SYMBOL(pgprot_framebuffer); |
| 27 | |
| 28 | int fb_is_primary_device(struct fb_info *info) |
| 29 | { |
| 30 | struct device *device = info->device; |
| 31 | struct pci_dev *pci_dev; |
| 32 | |
| 33 | if (!device || !dev_is_pci(device)) |
| 34 | return 0; |
| 35 | |
| 36 | pci_dev = to_pci_dev(device); |
| 37 | |
| 38 | if (pci_dev == vga_default_device()) |
| 39 | return 1; |
| 40 | return 0; |
| 41 | } |
| 42 | EXPORT_SYMBOL(fb_is_primary_device); |
| 43 | |
| 44 | MODULE_LICENSE("GPL"); |
| 45 |