powerpc/8xx: Avoid testing for kernel space in ITLB Miss.

Only modules will cause ITLB Misses as we always pin
the first 8MB of kernel memory.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index ecc4a02277e3..84ca1d9b9ed3 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -318,12 +318,16 @@ InstructionTLBMiss:
         /* If we are faulting a kernel address, we have to use the
          * kernel page tables.
          */
+#ifdef CONFIG_MODULES
+        /* Only modules will cause ITLB Misses as we always
+         * pin the first 8MB of kernel memory */
         andi.   r11, r10, 0x0800        /* Address >= 0x80000000 */
         beq     3f
         lis     r11, swapper_pg_dir@h
         ori     r11, r11, swapper_pg_dir@l
         rlwimi  r10, r11, 0, 2, 19
 3:
+#endif
         lwz     r11, 0(r10)     /* Get the level 1 entry */
         rlwinm. r10, r11,0,0,19 /* Extract page descriptor page address */
         beq     2f              /* If zero, don't try to find a pte */