From d9c102de2caa733c3e718e1b032cd154a9994326 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Fri, 7 Apr 2017 12:10:53 +0200 Subject: [PATCH] ia64: Use generic pci_mmap_resource_range() Now that we eliminated the different behaviour in separately-reviewable commits, we can switch IA64 to the generic implementation. Signed-off-by: David Woodhouse Tested-by: Tony Luck --- arch/ia64/include/asm/pci.h | 1 + arch/ia64/pci/pci.c | 30 ------------------------------ 2 files changed, 1 insertion(+), 30 deletions(-) diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h index fc60b3d139f4..6459f2d46200 100644 --- a/arch/ia64/include/asm/pci.h +++ b/arch/ia64/include/asm/pci.h @@ -51,6 +51,7 @@ extern unsigned long ia64_max_iommu_merge_mask; #define PCI_DMA_BUS_IS_PHYS (ia64_max_iommu_merge_mask == ~0UL) #define HAVE_PCI_MMAP +#define ARCH_GENERIC_PCI_MMAP_RESOURCE #define arch_can_pci_mmap_wc() 1 #define HAVE_PCI_LEGACY diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 7438e8c84cdd..4068bde623dc 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -418,36 +418,6 @@ pcibios_align_resource (void *data, const struct resource *res, return res->start; } -int -pci_mmap_page_range (struct pci_dev *dev, int bar, - struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, int write_combine) -{ - /* - * 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 (write_combine) - vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); - else - vma->vm_page_prot = pgprot_device(vma->vm_page_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 -- 2.20.1