Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel...

[firefly-linux-kernel-4.4.55.git] / arch / x86 / pci / i386.c

diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 826140af3c3c9b6ad640743c999996a4e88f1a4e..c4bb261c106e16eaeab09092a9942418dba61133 100644 (file)
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -316,6 +316,8 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
                 */
                prot |= _PAGE_CACHE_UC_MINUS;
 
+       prot |= _PAGE_IOMAP;    /* creating a mapping for IO */
+
        vma->vm_page_prot = __pgprot(prot);
 
        if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,