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authorDavid Gibson <david@gibson.dropbear.id.au>2007-04-30 16:30:56 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-02 20:04:30 +1000
commitf88df14b1f15cdeffa060580a40c1ce3e13bb79e (patch)
tree0619f32c2be79a85792537ad4410cc8d729f4f75 /include/asm-powerpc/pgtable-4k.h
parent69d48b409cac747cc0707b05b769e38488a6ad35 (diff)
[POWERPC] Remove arch/powerpc's dependence on asm-ppc/pg{alloc,table}.h
Currently, all 32-bit powerpc platforms use asm-ppc/pgtable.h and asm-ppc/pgalloc.h, even when otherwise compiled with ARCH=powerpc. Those asm-ppc files are a fairly nasty tangle of #ifdefs including a bunch of things which shouldn't be necessary any more in arch/powerpc. Cleaning up that mess is going to take a while, but this patch is a first step. It separates the asm-powerpc/pg{alloc,table}.h into 64 bit and 32 bit versions in asm-powerpc, which the basic .h files in asm-powerpc select based on config. We make a few tiny tweaks to the innards of the files along the way, making the outermost ifdefs (double-inclusion protection and __KERNEL__) a little cleaner, and #including asm-generic/pgtable.h from the top-level asm-powerpc/pgtable.h (since both the old 32-bit and 64-bit versions ended with such an #include). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/pgtable-4k.h')
-rw-r--r--include/asm-powerpc/pgtable-4k.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h
index a28fa8bc01d..1744d6ac12a 100644
--- a/include/asm-powerpc/pgtable-4k.h
+++ b/include/asm-powerpc/pgtable-4k.h
@@ -1,3 +1,5 @@
+#ifndef _ASM_POWERPC_PGTABLE_4K_H
+#define _ASM_POWERPC_PGTABLE_4K_H
/*
* Entries per page directory level. The PTE level must use a 64b record
* for each page table entry. The PMD and PGD level use a 32b record for
@@ -100,3 +102,4 @@
#define remap_4k_pfn(vma, addr, pfn, prot) \
remap_pfn_range((vma), (addr), (pfn), PAGE_SIZE, (prot))
+#endif /* _ASM_POWERPC_PGTABLE_4K_H */