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powerpc: Shield code specific to 64-bit server processors

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This is a random collection of added ifdef's around portions of
code that only mak sense on server processors. Using either
CONFIG_PPC_STD_MMU_64 or CONFIG_PPC_BOOK3S as seems appropriate.

This is meant to make the future merging of Book3E 64-bit support
easier.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2009-06-02 21:17:45 +00:00
parent 91c60b5b82
commit 944916858a
10 changed files with 32 additions and 8 deletions
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5
arch/powerpc/include/asm/pgtable-ppc64.h
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@@ -31,9 +31,11 @@
#error TASK_SIZE_USER64 exceeds pagetable range
#endif
#ifdef CONFIG_PPC_STD_MMU_64
#if TASK_SIZE_USER64 > (1UL << (USER_ESID_BITS + SID_SHIFT))
#error TASK_SIZE_USER64 exceeds user VSID range
#endif
#endif
/*
* Define the address range of the vmalloc VM area.
@@ -199,8 +201,11 @@ static inline unsigned long pte_update(struct mm_struct *mm,
if (!huge)
assert_pte_locked(mm, addr);
#ifdef CONFIG_PPC_STD_MMU_64
if (old & _PAGE_HASHPTE)
hpte_need_flush(mm, addr, ptep, old, huge);
#endif
return old;
}