From: "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com>
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.ku...@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/mmu-book3e.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/powerpc/include/asm/mmu-book3e.h
b/arch/powerpc/include/asm/mmu-book3e.h
index 8bd560c..936db36 100644
--- a/arch/powerpc/include/asm/mmu-book3e.h
+++ b/arch/powerpc/include/asm/mmu-book3e.h
@@ -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
*/
--
1.8.1.2
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