45 lines
998 B
C
45 lines
998 B
C
/*
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* Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*
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*/
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#include <linux/fb.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/vgaarb.h>
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#include <asm/fb.h>
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pgprot_t pgprot_framebuffer(pgprot_t prot,
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unsigned long vm_start, unsigned long vm_end,
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unsigned long offset)
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{
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pgprot_val(prot) &= ~_PAGE_CACHE_MASK;
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if (boot_cpu_data.x86 > 3)
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pgprot_val(prot) |= cachemode2protval(_PAGE_CACHE_MODE_UC_MINUS);
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return prot;
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}
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EXPORT_SYMBOL(pgprot_framebuffer);
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int fb_is_primary_device(struct fb_info *info)
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{
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struct device *device = info->device;
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struct pci_dev *pci_dev;
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if (!device || !dev_is_pci(device))
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return 0;
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pci_dev = to_pci_dev(device);
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if (pci_dev == vga_default_device())
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return 1;
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return 0;
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}
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EXPORT_SYMBOL(fb_is_primary_device);
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MODULE_LICENSE("GPL");
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