diff options
| author |   venkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com> | 2008-03-18 17:00:15 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-04-24 23:40:47 +0200 |
| commit | e045fb2a988a9a1964059b0d33dbaf18d12f925f (patch) | |
| tree | 61dbd03abd83dcf6d5195fa6463ea96e125784f6 /include/asm-x86/io_32.h | |
| parent | devmem: add range_is_allowed() check to mmap of /dev/mem (diff) | |
| download | linux-dev-e045fb2a988a9a1964059b0d33dbaf18d12f925f.tar.xz linux-dev-e045fb2a988a9a1964059b0d33dbaf18d12f925f.zip | |
x86: PAT avoid aliasing in /dev/mem read/write
Add xlate and unxlate around /dev/mem read/write. This sets up the mapping
that can be used for /dev/mem read and write without aliasing worries.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/io_32.h')
| -rw-r--r-- | include/asm-x86/io_32.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/include/asm-x86/io_32.h b/include/asm-x86/io_32.h index 509045f5fda2..6e73467a4fb1 100644 --- a/include/asm-x86/io_32.h +++ b/include/asm-x86/io_32.h @@ -49,12 +49,6 @@ #include <linux/vmalloc.h> /* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* * Convert a virtual cached pointer to an uncached pointer */ #define xlate_dev_kmem_ptr(p) p |