diff options
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/include/asm/pci.h | 5 | ||||
| -rw-r--r-- | arch/ia64/pci/pci.c | 46 |
2 files changed, 3 insertions, 48 deletions
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h index c0835b0dc722..6459f2d46200 100644 --- a/arch/ia64/include/asm/pci.h +++ b/arch/ia64/include/asm/pci.h @@ -51,8 +51,9 @@ extern unsigned long ia64_max_iommu_merge_mask; #define PCI_DMA_BUS_IS_PHYS (ia64_max_iommu_merge_mask == ~0UL) #define HAVE_PCI_MMAP -extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, int write_combine); +#define ARCH_GENERIC_PCI_MMAP_RESOURCE +#define arch_can_pci_mmap_wc() 1 + #define HAVE_PCI_LEGACY extern int pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma, 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, return res->start; } -int -pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, int write_combine) -{ - unsigned long size = vma->vm_end - vma->vm_start; - pgprot_t prot; - - /* - * I/O space cannot be accessed via normal processor loads and - * stores on this platform. - */ - if (mmap_state == pci_mmap_io) - /* - * XXX we could relax this for I/O spaces for which ACPI - * indicates that the space is 1-to-1 mapped. But at the - * moment, we don't support multiple PCI address spaces and - * the legacy I/O space is not 1-to-1 mapped, so this is moot. - */ - return -EINVAL; - - if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size)) - return -EINVAL; - - prot = phys_mem_access_prot(NULL, vma->vm_pgoff, size, - vma->vm_page_prot); - - /* - * If the user requested WC, the kernel uses UC or WC for this region, - * and the chipset supports WC, we can use WC. Otherwise, we have to - * use the same attribute the kernel uses. - */ - if (write_combine && - ((pgprot_val(prot) & _PAGE_MA_MASK) == _PAGE_MA_UC || - (pgprot_val(prot) & _PAGE_MA_MASK) == _PAGE_MA_WC) && - efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start)) - vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); - else - vma->vm_page_prot = prot; - - if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, - vma->vm_end - vma->vm_start, vma->vm_page_prot)) - return -EAGAIN; - - return 0; -} - /** * ia64_pci_get_legacy_mem - generic legacy mem routine * @bus: bus to get legacy memory base address for |