Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa...

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / efi_64.c

diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 652c5287215fdb9500e4013794d559cfc4ace801..cb783b92c50cce5b9d123c8bff127ba967a9b230 100644 (file)
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -99,24 +99,11 @@ void __init efi_call_phys_epilog(void)
 
 void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size)
 {
-       static unsigned pages_mapped __initdata;
-       unsigned i, pages;
-       unsigned long offset;
+       unsigned long last_map_pfn;
 
-       pages = PFN_UP(phys_addr + size) - PFN_DOWN(phys_addr);
-       offset = phys_addr & ~PAGE_MASK;
-       phys_addr &= PAGE_MASK;
-
-       if (pages_mapped + pages > MAX_EFI_IO_PAGES)
+       last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size);
+       if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size)
                return NULL;
 
-       for (i = 0; i < pages; i++) {
-               __set_fixmap(FIX_EFI_IO_MAP_FIRST_PAGE - pages_mapped,
-                            phys_addr, PAGE_KERNEL);
-               phys_addr += PAGE_SIZE;
-               pages_mapped++;
-       }
-
-       return (void __iomem *)__fix_to_virt(FIX_EFI_IO_MAP_FIRST_PAGE - \
-                                            (pages_mapped - pages)) + offset;
+       return (void __iomem *)__va(phys_addr);
 }