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>

3 files changed, 13 insertions, 2 deletions

diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index d2a65e8ca6ae..f78f65c38f05 100644
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -20,6 +20,11 @@
 #define _ASM_POWERPC_LPPACA_H
 #ifdef __KERNEL__
 
+/* These definitions relate to hypervisors that only exist when using
+ * a server type processor
+ */
+#ifdef CONFIG_PPC_BOOK3S
+
 //=============================================================================
 //
 //      This control block contains the data that is shared between the
@@ -158,5 +163,6 @@ struct slb_shadow {
 
 extern struct slb_shadow slb_shadow[];
 
+#endif /* CONFIG_PPC_BOOK3S */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_LPPACA_H */
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 325b7208a146..fb57ded592f9 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -74,10 +74,10 @@ extern void early_init_mmu_secondary(void);
 #endif /* !__ASSEMBLY__ */
 
 
-#ifdef CONFIG_PPC64
+#if defined(CONFIG_PPC_STD_MMU_64)
 /* 64-bit classic hash table MMU */
 #  include <asm/mmu-hash64.h>
-#elif defined(CONFIG_PPC_STD_MMU)
+#elif defined(CONFIG_PPC_STD_MMU_32)
 /* 32-bit classic hash table MMU */
 #  include <asm/mmu-hash32.h>
 #elif defined(CONFIG_40x)
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;
 }