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powerpc/fsl-booke: Use HW PTE format if CONFIG_PTE_64BIT

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Switch to using the Power ISA defined PTE format when we have a 64-bit
PTE.  This makes the code handling between fsl-booke and book3e-64
similiar for TLB faults.

Additionally this lets use take advantage of the page size encodings and
full permissions that the HW PTE defines.

Also defined _PMD_PRESENT, _PMD_PRESENT_MASK, and _PMD_BAD since the
32-bit ppc arch code expects them.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2009-09-01 15:48:42 +00:00
committed by Benjamin Herrenschmidt
parent 1d5d9527d8
commit 76acc2c1a7
4 changed files with 30 additions and 18 deletions
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3
arch/powerpc/include/asm/pte-book3e.h
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@@ -75,6 +75,9 @@
/* On 32-bit, we never clear the top part of the PTE */
#ifdef CONFIG_PPC32
#define _PTE_NONE_MASK 0xffffffff00000000ULL
#define _PMD_PRESENT 0
#define _PMD_PRESENT_MASK (PAGE_MASK)
#define _PMD_BAD (~PAGE_MASK)
#endif
#endif /* __KERNEL__ */