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>
diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index d2a65e8..f78f65c 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 @@
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 325b720..fb57ded 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -74,10 +74,10 @@
#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 c40db05..8cd083c 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 @@
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;
}