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
16pgprot_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}
26EXPORT_SYMBOL(pgprot_framebuffer);
27
28int 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}
42EXPORT_SYMBOL(fb_is_primary_device);
43
44MODULE_LICENSE("GPL");
45