Bjorn Helgaas | e9b0a07 | 2006-03-26 01:37:06 -0800 | [diff] [blame] | 1 | /* |
| 2 | * (c) Copyright 2006 Hewlett-Packard Development Company, L.P. |
| 3 | * Bjorn Helgaas <bjorn.helgaas@hp.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | */ |
| 9 | |
| 10 | #include <linux/compiler.h> |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/efi.h> |
| 13 | #include <asm/io.h> |
| 14 | |
| 15 | static inline void __iomem * |
| 16 | __ioremap (unsigned long offset, unsigned long size) |
| 17 | { |
| 18 | return (void __iomem *) (__IA64_UNCACHED_OFFSET | offset); |
| 19 | } |
| 20 | |
| 21 | void __iomem * |
| 22 | ioremap (unsigned long offset, unsigned long size) |
| 23 | { |
Bjorn Helgaas | e9b0a07 | 2006-03-26 01:37:06 -0800 | [diff] [blame] | 24 | if (efi_mem_attribute_range(offset, size, EFI_MEMORY_WB)) |
| 25 | return phys_to_virt(offset); |
| 26 | |
Bjorn Helgaas | c1c57d7 | 2006-03-30 09:53:39 -0700 | [diff] [blame^] | 27 | if (efi_mem_attribute_range(offset, size, EFI_MEMORY_UC)) |
| 28 | return __ioremap(offset, size); |
| 29 | |
Bjorn Helgaas | e9b0a07 | 2006-03-26 01:37:06 -0800 | [diff] [blame] | 30 | /* |
| 31 | * Someday this should check ACPI resources so we |
| 32 | * can do the right thing for hot-plugged regions. |
| 33 | */ |
| 34 | return __ioremap(offset, size); |
| 35 | } |
| 36 | EXPORT_SYMBOL(ioremap); |
| 37 | |
| 38 | void __iomem * |
| 39 | ioremap_nocache (unsigned long offset, unsigned long size) |
| 40 | { |
| 41 | return __ioremap(offset, size); |
| 42 | } |
| 43 | EXPORT_SYMBOL(ioremap_nocache); |