diff options
Diffstat (limited to 'arch/ppc64/kernel/pci.c')
| -rw-r--r-- | arch/ppc64/kernel/pci.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c index fdd8f7869a6..be3cc387c1e 100644 --- a/arch/ppc64/kernel/pci.c +++ b/arch/ppc64/kernel/pci.c @@ -547,8 +547,9 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node, if (range == NULL || (rlen < sizeof(struct isa_range))) { printk(KERN_ERR "no ISA ranges or unexpected isa range size," "mapping 64k\n"); - __ioremap_explicit(phb_io_base_phys, (unsigned long)phb_io_base_virt, - 0x10000, _PAGE_NO_CACHE); + __ioremap_explicit(phb_io_base_phys, + (unsigned long)phb_io_base_virt, + 0x10000, _PAGE_NO_CACHE | _PAGE_GUARDED); return; } @@ -576,7 +577,7 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node, __ioremap_explicit(phb_io_base_phys, (unsigned long) phb_io_base_virt, - size, _PAGE_NO_CACHE); + size, _PAGE_NO_CACHE | _PAGE_GUARDED); } } @@ -692,7 +693,7 @@ void __devinit pci_setup_phb_io_dynamic(struct pci_controller *hose, struct resource *res; hose->io_base_virt = __ioremap(hose->io_base_phys, size, - _PAGE_NO_CACHE); + _PAGE_NO_CACHE | _PAGE_GUARDED); DBG("phb%d io_base_phys 0x%lx io_base_virt 0x%lx\n", hose->global_number, hose->io_base_phys, (unsigned long) hose->io_base_virt); @@ -780,7 +781,8 @@ int remap_bus_range(struct pci_bus *bus) if (get_bus_io_range(bus, &start_phys, &start_virt, &size)) return 1; printk("mapping IO %lx -> %lx, size: %lx\n", start_phys, start_virt, size); - if (__ioremap_explicit(start_phys, start_virt, size, _PAGE_NO_CACHE)) + if (__ioremap_explicit(start_phys, start_virt, size, + _PAGE_NO_CACHE | _PAGE_GUARDED)) return 1; return 0; |