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| author | venkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com> | 2010-02-10 20:57:06 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-02-19 00:41:21 +0100 |
| commit | be5a0c126ad1dea2128dc5aef12c87083518d1ab (patch) | |
| tree | 3bbec0573354513dc03ece303d82418aa281c2c7 /arch/x86/mm/pat_internal.h | |
| parent | rbtree: Add support for augmented rbtrees (diff) | |
| download | linux-be5a0c126ad1dea2128dc5aef12c87083518d1ab.tar.xz linux-be5a0c126ad1dea2128dc5aef12c87083518d1ab.zip | |
x86, pat: Preparatory changes in pat.c for bigger rbtree change
Minor changes in pat.c to cleanup code and make it smoother to introduce
bigger rbtree only change in the following patch. The changes are cleaup
only and should not have any functional impact.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
LKML-Reference: <20100210195909.792781000@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/mm/pat_internal.h')
| -rw-r--r-- | arch/x86/mm/pat_internal.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/mm/pat_internal.h b/arch/x86/mm/pat_internal.h new file mode 100644 index 000000000000..6c98780eb731 --- /dev/null +++ b/arch/x86/mm/pat_internal.h @@ -0,0 +1,28 @@ +#ifndef __PAT_INTERNAL_H_ +#define __PAT_INTERNAL_H_ + +extern int pat_debug_enable; + +#define dprintk(fmt, arg...) \ + do { if (pat_debug_enable) printk(KERN_INFO fmt, ##arg); } while (0) + +struct memtype { + u64 start; + u64 end; + unsigned long type; + struct list_head nd; + struct rb_node rb; +}; + +static inline char *cattr_name(unsigned long flags) +{ + switch (flags & _PAGE_CACHE_MASK) { + case _PAGE_CACHE_UC: return "uncached"; + case _PAGE_CACHE_UC_MINUS: return "uncached-minus"; + case _PAGE_CACHE_WB: return "write-back"; + case _PAGE_CACHE_WC: return "write-combining"; + default: return "broken"; + } +} + +#endif /* __PAT_INTERNAL_H_ */ |