diff options
Diffstat (limited to 'arch/x86_64/mm/ioremap.c')
| -rw-r--r-- | arch/x86_64/mm/ioremap.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86_64/mm/ioremap.c b/arch/x86_64/mm/ioremap.c index c6e5e8d401a4..6cac90aa5032 100644 --- a/arch/x86_64/mm/ioremap.c +++ b/arch/x86_64/mm/ioremap.c @@ -13,12 +13,21 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/io.h> + #include <asm/pgalloc.h> #include <asm/fixmap.h> #include <asm/tlbflush.h> #include <asm/cacheflush.h> #include <asm/proto.h> +unsigned long __phys_addr(unsigned long x) +{ + if (x >= __START_KERNEL_map) + return x - __START_KERNEL_map + phys_base; + return x - PAGE_OFFSET; +} +EXPORT_SYMBOL(__phys_addr); + #define ISA_START_ADDRESS 0xa0000 #define ISA_END_ADDRESS 0x100000 |