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/module.h>
11 #include <linux/pci.h>
12 #include <linux/vgaarb.h>
13
14 #include <asm/video.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(_PAGE_CACHE_MODE_UC_MINUS);
23
24 return prot;
25 }
26 EXPORT_SYMBOL(pgprot_framebuffer);
27
28 bool video_is_primary_device(struct device *dev)
29 {
30 struct pci_dev *pdev;
31
32 if (!dev_is_pci(dev))
33 return false;
34
35 pdev = to_pci_dev(dev);
36
37 return (pdev == vga_default_device());
38 }
39 EXPORT_SYMBOL(video_is_primary_device);
40
41 MODULE_LICENSE("GPL");
42
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