microblaze: Use predefined macro for ESR_DIZ

Just use macro instead of hardcoded value.

Signed-off-by: Michal Simek <monstr@monstr.eu>

diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
index 0a573df47ff82aa866109c3384d93cce73c29d26..52b9feb985150e2bfd809c2a2f9fd392f67e9175 100644 (file)
--- a/arch/microblaze/kernel/hw_exception_handler.S
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -75,6 +75,7 @@
 #include <asm/mmu.h>
 #include <asm/pgtable.h>
 #include <asm/signal.h>
+#include <asm/registers.h>
 #include <asm/asm-offsets.h>
 
 #undef DEBUG
@@ -581,7 +582,7 @@ ex_handler_done:
                 * tried to access a kernel or read-protected page - always
                 * a SEGV). All other faults here must be stores, so no
                 * need to check ESR_S as well. */
-               andi    r4, r4, 0x800           /* ESR_Z - zone protection */
+               andi    r4, r4, ESR_DIZ         /* ESR_Z - zone protection */
                bnei    r4, ex2
 
                ori     r4, r0, swapper_pg_dir
@@ -595,7 +596,7 @@ ex_handler_done:
                 * tried to access a kernel or read-protected page - always
                 * a SEGV). All other faults here must be stores, so no
                 * need to check ESR_S as well. */
-               andi    r4, r4, 0x800           /* ESR_Z */
+               andi    r4, r4, ESR_DIZ         /* ESR_Z */
                bnei    r4, ex2
                /* get current task address */
                addi    r4 ,CURRENT_TASK, TOPHYS(0);