[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [5512] Optimize redundant cp15 coprocessor access control r
From: |
Paul Brook |
Subject: |
[Qemu-devel] [5512] Optimize redundant cp15 coprocessor access control register writes. |
Date: |
Wed, 22 Oct 2008 16:14:09 +0000 |
Revision: 5512
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5512
Author: pbrook
Date: 2008-10-22 16:14:08 +0000 (Wed, 22 Oct 2008)
Log Message:
-----------
Optimize redundant cp15 coprocessor access control register writes.
Signed-off-by: Paul Brook <address@hidden>
Modified Paths:
--------------
trunk/target-arm/helper.c
Modified: trunk/target-arm/helper.c
===================================================================
--- trunk/target-arm/helper.c 2008-10-22 15:55:18 UTC (rev 5511)
+++ trunk/target-arm/helper.c 2008-10-22 16:14:08 UTC (rev 5512)
@@ -1334,9 +1334,11 @@
case 2:
if (arm_feature(env, ARM_FEATURE_XSCALE))
goto bad_reg;
- env->cp15.c1_coproc = val;
- /* ??? Is this safe when called from within a TB? */
- tb_flush(env);
+ if (env->cp15.c1_coproc != val) {
+ env->cp15.c1_coproc = val;
+ /* ??? Is this safe when called from within a TB? */
+ tb_flush(env);
+ }
break;
default:
goto bad_reg;
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Qemu-devel] [5512] Optimize redundant cp15 coprocessor access control register writes.,
Paul Brook <=