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Diffstat (limited to 'arch/ia64/pci/pci.c')
-rw-r--r--arch/ia64/pci/pci.c46
1 files changed, 0 insertions, 46 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 8f6ac2f8ae4c..4068bde623dc 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -418,52 +418,6 @@ pcibios_align_resource (void *data, const struct resource *res,
418 return res->start; 418 return res->start;
419} 419}
420 420
421int
422pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
423 enum pci_mmap_state mmap_state, int write_combine)
424{
425 unsigned long size = vma->vm_end - vma->vm_start;
426 pgprot_t prot;
427
428 /*
429 * I/O space cannot be accessed via normal processor loads and
430 * stores on this platform.
431 */
432 if (mmap_state == pci_mmap_io)
433 /*
434 * XXX we could relax this for I/O spaces for which ACPI
435 * indicates that the space is 1-to-1 mapped. But at the
436 * moment, we don't support multiple PCI address spaces and
437 * the legacy I/O space is not 1-to-1 mapped, so this is moot.
438 */
439 return -EINVAL;
440
441 if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size))
442 return -EINVAL;
443
444 prot = phys_mem_access_prot(NULL, vma->vm_pgoff, size,
445 vma->vm_page_prot);
446
447 /*
448 * If the user requested WC, the kernel uses UC or WC for this region,
449 * and the chipset supports WC, we can use WC. Otherwise, we have to
450 * use the same attribute the kernel uses.
451 */
452 if (write_combine &&
453 ((pgprot_val(prot) & _PAGE_MA_MASK) == _PAGE_MA_UC ||
454 (pgprot_val(prot) & _PAGE_MA_MASK) == _PAGE_MA_WC) &&
455 efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start))
456 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
457 else
458 vma->vm_page_prot = prot;
459
460 if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
461 vma->vm_end - vma->vm_start, vma->vm_page_prot))
462 return -EAGAIN;
463
464 return 0;
465}
466
467/** 421/**
468 * ia64_pci_get_legacy_mem - generic legacy mem routine 422 * ia64_pci_get_legacy_mem - generic legacy mem routine
469 * @bus: bus to get legacy memory base address for 423 * @bus: bus to get legacy memory base address for