powerpc: Shield code specific to 64-bit server processors

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>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h
index c40db05f21e0..8cd083c61503 100644
--- a/arch/powerpc/include/asm/pgtable-ppc64.h
+++ b/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -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;
 }