Commit d9c102de authored by David Woodhouse's avatar David Woodhouse Committed by Bjorn Helgaas
Browse files

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: default avatarDavid Woodhouse <dwmw@amazon.co.uk>
Tested-by: default avatarTony Luck <tony.luck@intel.com>
parent fcdb10d6

arch/ia64/include/asm/pci.h

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/ia64/pci/pci.c

+0 −30
Original line number Diff line number Diff line
@@ -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