diff options
| author | venkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com> | 2008-03-18 20:00:15 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-24 17:40:47 -0400 |
| commit | e045fb2a988a9a1964059b0d33dbaf18d12f925f (patch) | |
| tree | 61dbd03abd83dcf6d5195fa6463ea96e125784f6 /include/asm-x86/io_32.h | |
| parent | e2beb3eae627211b67e456c53f946cede2ac10d7 (diff) | |
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 @@ | |||
| 49 | #include <linux/vmalloc.h> | 49 | #include <linux/vmalloc.h> |
| 50 | 50 | ||
| 51 | /* | 51 | /* |
| 52 | * Convert a physical pointer to a virtual kernel pointer for /dev/mem | ||
| 53 | * access | ||
| 54 | */ | ||
| 55 | #define xlate_dev_mem_ptr(p) __va(p) | ||
| 56 | |||
| 57 | /* | ||
| 58 | * Convert a virtual cached pointer to an uncached pointer | 52 | * Convert a virtual cached pointer to an uncached pointer |
| 59 | */ | 53 | */ |
| 60 | #define xlate_dev_kmem_ptr(p) p | 54 | #define xlate_dev_kmem_ptr(p) p |