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microblaze: Use predefined macro for ESR_DIZ

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Just use macro instead of hardcoded value.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2012-07-31 12:01:00 +02:00
parent 6e80cff543
commit 91836710c7
1 changed files with 3 additions and 2 deletions
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5
arch/microblaze/kernel/hw_exception_handler.S
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@ -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);