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MIPS: PCI: Use generic pci_mmap_resource_range()
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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commit
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2 changed files with 1 additions and 26 deletions
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@ -110,7 +110,7 @@ extern unsigned long PCIBIOS_MIN_MEM;
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extern void pcibios_set_master(struct pci_dev *dev);
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#define HAVE_PCI_MMAP
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#define ARCH_GENERIC_PCI_MMAP_RESOURCE
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#define HAVE_ARCH_PCI_RESOURCE_TO_USER
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/*
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@ -57,28 +57,3 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar,
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*start = fixup_bigphys_addr(rsrc->start, size);
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*end = rsrc->start + size;
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}
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int pci_mmap_page_range(struct pci_dev *dev, int bar,
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struct vm_area_struct *vma,
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enum pci_mmap_state mmap_state, int write_combine)
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{
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unsigned long prot;
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/*
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* I/O space can be accessed via normal processor loads and stores on
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* this platform but for now we elect not to do this and portable
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* drivers should not do this anyway.
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*/
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if (mmap_state == pci_mmap_io)
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return -EINVAL;
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/*
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* Ignore write-combine; for now only return uncached mappings.
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*/
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prot = pgprot_val(vma->vm_page_prot);
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prot = (prot & ~_CACHE_MASK) | _CACHE_UNCACHED;
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vma->vm_page_prot = __pgprot(prot);
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return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
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vma->vm_end - vma->vm_start, vma->vm_page_prot);
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}
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