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powerpc: Fix build error for book3e

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We moved the definition of shift_to_mmu_psize and mmu_psize_to_shift
out of hugetlbpage.c in patch "powerpc: New hugepage directory format".

These functions are not related to hugetlbpage and we want to use them
outside hugetlbpage.c We missed a definition for book3e when we moved
these functions. Add similar functions to mmu-book3e.h

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Aneesh Kumar K.V 2013-04-30 20:26:08 +00:00 committed by Benjamin Herrenschmidt
parent 9353374b8e
commit 54d5999d98
1 changed files with 18 additions and 0 deletions
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18
arch/powerpc/include/asm/mmu-book3e.h
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@ -215,6 +215,7 @@
#define TLBILX_T_CLASS3 7
#ifndef __ASSEMBLY__
#include <asm/bug.h>
extern unsigned int tlbcam_index;
@ -254,6 +255,23 @@ struct mmu_psize_def
};
extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
static inline int shift_to_mmu_psize(unsigned int shift)
{
int psize;
for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
if (mmu_psize_defs[psize].shift == shift)
return psize;
return -1;
}
static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
{
if (mmu_psize_defs[mmu_psize].shift)
return mmu_psize_defs[mmu_psize].shift;
BUG();
}
/* The page sizes use the same names as 64-bit hash but are
* constants
*/