[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers

Move to using PAGE_OFFSET instead of TASK_SIZE or KERNELBASE value on
6xx/40x/44x/fsl-booke to determine if the faulting address is a kernel or
user space address.  This mimics how the macro is_kernel_addr() works.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index 864d63fbb204..409db6123924 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -319,7 +319,7 @@ interrupt_base:
         /* If we are faulting a kernel address, we have to use the
          * kernel page tables.
          */
-        lis     r11, TASK_SIZE@h
+        lis     r11, PAGE_OFFSET@h
         cmplw   r10, r11
         blt+    3f
         lis     r11, swapper_pg_dir@h
@@ -458,7 +458,7 @@ interrupt_base:
         /* If we are faulting a kernel address, we have to use the
          * kernel page tables.
          */
-        lis     r11, TASK_SIZE@h
+        lis     r11, PAGE_OFFSET@h
         cmplw   r10, r11
         blt+    3f
         lis     r11, swapper_pg_dir@h
@@ -528,7 +528,7 @@ interrupt_base:
         /* If we are faulting a kernel address, we have to use the
          * kernel page tables.
          */
-        lis     r11, TASK_SIZE@h
+        lis     r11, PAGE_OFFSET@h
         cmplw   r10, r11
         blt+    3f
         lis     r11, swapper_pg_dir@h