# HG changeset patch
# User tschatzl
# Date 1409663037 -7200
# Node ID 3372cbab6583b92d826fc2f314f6b2e28dc2ca92
# Parent  999824269b713faa1bdb5454819513724fafd18b# Parent  39189caa2894bec47db1f2e98f670aad7857ef73
Merge

diff -r 39189caa2894 -r 3372cbab6583 src/cpu/x86/vm/vm_version_x86.cpp
--- a/src/cpu/x86/vm/vm_version_x86.cpp	Fri Aug 29 13:12:03 2014 +0200
+++ b/src/cpu/x86/vm/vm_version_x86.cpp	Tue Sep 02 15:03:57 2014 +0200
@@ -612,6 +612,17 @@
 
 #if INCLUDE_RTM_OPT
   if (UseRTMLocking) {
+    if (is_intel_family_core()) {
+      if ((_model == CPU_MODEL_HASWELL_E3) ||
+          (_model == CPU_MODEL_HASWELL_E7 && _stepping < 3) ||
+          (_model == CPU_MODEL_BROADWELL  && _stepping < 4)) {
+        if (!UnlockExperimentalVMOptions) {
+          vm_exit_during_initialization("UseRTMLocking is only available as experimental option on this platform. It must be enabled via -XX:+UnlockExperimentalVMOptions flag.");
+        } else {
+          warning("UseRTMLocking is only available as experimental option on this platform.");
+        }
+      }
+    }
     if (!FLAG_IS_CMDLINE(UseRTMLocking)) {
       // RTM locking should be used only for applications with
       // high lock contention. For now we do not use it by default.
diff -r 39189caa2894 -r 3372cbab6583 src/cpu/x86/vm/vm_version_x86.hpp
--- a/src/cpu/x86/vm/vm_version_x86.hpp	Fri Aug 29 13:12:03 2014 +0200
+++ b/src/cpu/x86/vm/vm_version_x86.hpp	Tue Sep 02 15:03:57 2014 +0200
@@ -276,7 +276,10 @@
     CPU_MODEL_WESTMERE_EX    = 0x2f,
     CPU_MODEL_SANDYBRIDGE    = 0x2a,
     CPU_MODEL_SANDYBRIDGE_EP = 0x2d,
-    CPU_MODEL_IVYBRIDGE_EP   = 0x3a
+    CPU_MODEL_IVYBRIDGE_EP   = 0x3a,
+    CPU_MODEL_HASWELL_E3     = 0x3c,
+    CPU_MODEL_HASWELL_E7     = 0x3f,
+    CPU_MODEL_BROADWELL      = 0x3d
   } cpuExtendedFamily;
 
   // cpuid information block.  All info derived from executing cpuid with
diff -r 39189caa2894 -r 3372cbab6583 test/compiler/rtm/cli/TestUseRTMDeoptOptionOnSupportedConfig.java
--- a/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnSupportedConfig.java	Fri Aug 29 13:12:03 2014 +0200
+++ b/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnSupportedConfig.java	Tue Sep 02 15:03:57 2014 +0200
@@ -62,13 +62,16 @@
         // verify default value
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
                 TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE,
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking");
         // verify that option is off when UseRTMLocking is off
-        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
-                "false", "-XX:-UseRTMLocking", "-XX:+UseRTMDeopt");
+        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt", "false",
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "-XX:-UseRTMLocking", "-XX:+UseRTMDeopt");
         // verify that option could be turned on
-        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
-                "true", "-XX:+UseRTMLocking", "-XX:+UseRTMDeopt");
+        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt", "true",
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "-XX:+UseRTMLocking", "-XX:+UseRTMDeopt");
     }
 
     public static void main(String args[]) throws Throwable {
diff -r 39189caa2894 -r 3372cbab6583 test/compiler/rtm/cli/TestUseRTMLockingOptionOnSupportedConfig.java
--- a/test/compiler/rtm/cli/TestUseRTMLockingOptionOnSupportedConfig.java	Fri Aug 29 13:12:03 2014 +0200
+++ b/test/compiler/rtm/cli/TestUseRTMLockingOptionOnSupportedConfig.java	Tue Sep 02 15:03:57 2014 +0200
@@ -58,24 +58,31 @@
                 new String[]{
                         RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
                         unrecongnizedOption
-                }, ExitCode.OK, "-XX:+UseRTMLocking"
+                }, ExitCode.OK,
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "-XX:+UseRTMLocking"
         );
 
         CommandLineOptionTest.verifySameJVMStartup(null,
                 new String[]{
                         RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
                         unrecongnizedOption
-                }, ExitCode.OK, "-XX:-UseRTMLocking"
+                }, ExitCode.OK,
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "-XX:-UseRTMLocking"
         );
         // verify that UseRTMLocking is of by default
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
-                TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE);
+                TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
         // verify that we can change UseRTMLocking value
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
                 TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:-UseRTMLocking");
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
-                "true", "-XX:+UseRTMLocking");
+                "true", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "-XX:+UseRTMLocking");
     }
 
     public static void main(String args[]) throws Throwable {
diff -r 39189caa2894 -r 3372cbab6583 test/compiler/rtm/cli/TestUseRTMLockingOptionWithBiasedLocking.java
--- a/test/compiler/rtm/cli/TestUseRTMLockingOptionWithBiasedLocking.java	Fri Aug 29 13:12:03 2014 +0200
+++ b/test/compiler/rtm/cli/TestUseRTMLockingOptionWithBiasedLocking.java	Tue Sep 02 15:03:57 2014 +0200
@@ -53,18 +53,22 @@
         // verify that we will not get a warning
         CommandLineOptionTest.verifySameJVMStartup(null,
                 new String[] { warningMessage }, ExitCode.OK,
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking");
         // verify that we will get a warning
         CommandLineOptionTest.verifySameJVMStartup(
                 new String[] { warningMessage }, null, ExitCode.OK,
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
         // verify that UseBiasedLocking is false when we use rtm locking
         CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
-                "false", "-XX:+UseRTMLocking");
+                "false", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "-XX:+UseRTMLocking");
         // verify that we can't turn on biased locking when
         // using rtm locking
         CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
-                "false", "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
+                "false", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
     }
 
     public static void main(String args[]) throws Throwable {