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authorvenkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com>2008-03-18 17:00:15 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-24 23:40:47 +0200
commite045fb2a988a9a1964059b0d33dbaf18d12f925f (patch)
tree61dbd03abd83dcf6d5195fa6463ea96e125784f6 /include/asm-x86/io_64.h
parente2beb3eae627211b67e456c53f946cede2ac10d7 (diff)
downloadop-kernel-dev-e045fb2a988a9a1964059b0d33dbaf18d12f925f.zip
op-kernel-dev-e045fb2a988a9a1964059b0d33dbaf18d12f925f.tar.gz
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_64.h')
-rw-r--r--include/asm-x86/io_64.h6
1 files changed, 0 insertions, 6 deletions
diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h
index c2f5eef..0930bed 100644
--- a/include/asm-x86/io_64.h
+++ b/include/asm-x86/io_64.h
@@ -308,12 +308,6 @@ extern int iommu_bio_merge;
#define BIO_VMERGE_BOUNDARY iommu_bio_merge
/*
- * 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
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