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authorDavid S. Miller <davem@davemloft.net>2009-03-26 15:23:24 -0700
committerDavid S. Miller <davem@davemloft.net>2009-03-26 15:23:24 -0700
commit08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6 (patch)
tree2be39bf8942edca1bcec735145e144a682ca9cd3 /arch/x86/kernel/efi_64.c
parentf0de70f8bb56952f6e016a65a8a8d006918f5bf6 (diff)
parent0384e2959127a56d0640505d004d8dd92f9c29f5 (diff)
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts: drivers/net/wimax/i2400m/usb-notif.c
Diffstat (limited to 'arch/x86/kernel/efi_64.c')
-rw-r--r--arch/x86/kernel/efi_64.c21
1 files changed, 4 insertions, 17 deletions
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 652c5287215..cb783b92c50 100644
--- 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);
}