42 lines
906 B
C
42 lines
906 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/module.h>
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#include <linux/pci.h>
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#include <linux/vgaarb.h>
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#include <asm/video.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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bool video_is_primary_device(struct device *dev)
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{
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struct pci_dev *pdev;
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if (!dev_is_pci(dev))
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return false;
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pdev = to_pci_dev(dev);
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return (pdev == vga_default_device());
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}
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EXPORT_SYMBOL(video_is_primary_device);
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MODULE_LICENSE("GPL");
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