commit 6b9122c936d41e385d6785ca971d5be100f144e0
author David Butcher <david.butcher@arm.com> Tue Jun 04 15:35:20 2013 +0100
committer David Butcher <david.butcher@arm.com> Tue Nov 12 17:35:47 2013 +0000
tree f8d3297d77d369b8527a011ea4bc15f240e75e0a
parent 100f558da35ca162147060f06e2c043a207505f8

Dalvik: DMB Optimisation

Replaces use of 'dmb' and 'dmb st' with inner-shareable versions.
This should improve performance in certain cases without harming
correctness.

Change-Id: Id30f58b93b34bf0e232bb01dc3956a82f7a69c40

vm/mterp/armv7-a/platform.S

diff --git a/vm/mterp/armv7-a/platform.S b/vm/mterp/armv7-a/platform.S
index 96ff2c2..b11350a 100644
--- a/vm/mterp/armv7-a/platform.S
+++ b/vm/mterp/armv7-a/platform.S
@@ -13,7 +13,7 @@
  */
 .macro  SMP_DMB
 #if ANDROID_SMP != 0
-    dmb
+    dmb ish
 #else
     /* not SMP */
 #endif
@@ -24,7 +24,7 @@
  */
 .macro  SMP_DMB_ST
 #if ANDROID_SMP != 0
-    dmb     st
+    dmb ishst
 #else
     /* not SMP */
 #endif

vm/mterp/out/InterpAsm-armv7-a-neon.S

diff --git a/vm/mterp/out/InterpAsm-armv7-a-neon.S b/vm/mterp/out/InterpAsm-armv7-a-neon.S
index c3419c2..4c50817 100644
--- a/vm/mterp/out/InterpAsm-armv7-a-neon.S
+++ b/vm/mterp/out/InterpAsm-armv7-a-neon.S
@@ -218,7 +218,7 @@
  */
 .macro  SMP_DMB
 #if ANDROID_SMP != 0
-    dmb
+    dmb ish
 #else
     /* not SMP */
 #endif
@@ -229,7 +229,7 @@
  */
 .macro  SMP_DMB_ST
 #if ANDROID_SMP != 0
-    dmb     st
+    dmb ishst
 #else
     /* not SMP */
 #endif

vm/mterp/out/InterpAsm-armv7-a.S

diff --git a/vm/mterp/out/InterpAsm-armv7-a.S b/vm/mterp/out/InterpAsm-armv7-a.S
index 2542245..1f68c1f 100644
--- a/vm/mterp/out/InterpAsm-armv7-a.S
+++ b/vm/mterp/out/InterpAsm-armv7-a.S
@@ -218,7 +218,7 @@
  */
 .macro  SMP_DMB
 #if ANDROID_SMP != 0
-    dmb
+    dmb ish
 #else
     /* not SMP */
 #endif
@@ -229,7 +229,7 @@
  */
 .macro  SMP_DMB_ST
 #if ANDROID_SMP != 0
-    dmb     st
+    dmb ishst
 #else
     /* not SMP */
 #endif