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| author | venkatesh.pallipadi@intel.com | 2008-12-18 20:41:32 +0100 |
|---|---|---|
| committer | H. Peter Anvin | 2008-12-18 22:30:16 +0100 |
| commit | 2520bd3123c00272f818a176c92d03c7d0a113d6 (patch) | |
| tree | 1c5f3e47243d77573cb4933dadc5224d2fb32686 /arch/x86/include/asm/pgtable.h | |
| parent | x86: PAT: change pgprot_noncached to uc_minus instead of strong uc - v3 (diff) | |
| download | kernel-qcow2-linux-2520bd3123c00272f818a176c92d03c7d0a113d6.tar.gz kernel-qcow2-linux-2520bd3123c00272f818a176c92d03c7d0a113d6.tar.xz kernel-qcow2-linux-2520bd3123c00272f818a176c92d03c7d0a113d6.zip | |
x86: PAT: add pgprot_writecombine() interface for drivers - v3
Impact: New mm functionality.
Add pgprot_writecombine. pgprot_writecombine will be aliased to
pgprot_noncached when not supported by the architecture.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 6968d4f6be3e..579f8ceee948 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -168,6 +168,9 @@ #ifndef __ASSEMBLY__ +#define pgprot_writecombine pgprot_writecombine +extern pgprot_t pgprot_writecombine(pgprot_t prot); + /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. |