aoqi@1: /*
aoqi@1:  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@1:  * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.
aoqi@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@1:  *
aoqi@1:  * This code is free software; you can redistribute it and/or modify it
aoqi@1:  * under the terms of the GNU General Public License version 2 only, as
aoqi@1:  * published by the Free Software Foundation.
aoqi@1:  *
aoqi@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@1:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@1:  * accompanied this code).
aoqi@1:  *
aoqi@1:  * You should have received a copy of the GNU General Public License version
aoqi@1:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@1:  *
aoqi@1:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@1:  * or visit www.oracle.com if you need additional information or have any
aoqi@1:  * questions.
aoqi@1:  *
aoqi@1:  */
aoqi@1: 
aoqi@1: #ifndef CPU_MIPS_VM_VM_VERSION_MIPS_HPP
aoqi@1: #define CPU_MIPS_VM_VM_VERSION_MIPS_HPP
aoqi@1:  
aoqi@1: #include "runtime/globals_extension.hpp"
aoqi@1: #include "runtime/vm_version.hpp"
aoqi@1: 
aoqi@1: 
aoqi@1: class VM_Version: public Abstract_VM_Version {
aoqi@1: protected:
aoqi@1: 	 enum Feature_Flag {
aoqi@1: 		 with_l2_cache = 0,
aoqi@1: 		 spt_16k_page = 1,
aoqi@1: 		 //////////////////////add some other feature here//////////////////
aoqi@1: 	 };
aoqi@1: 
aoqi@1: 	 enum Feature_Flag_Set {
aoqi@1: 		 unknown_m	  = 0,
aoqi@1: 		 all_features_m	  = -1,
aoqi@1: 		 with_l2_cache_m  = 1 << with_l2_cache,
aoqi@1: 		 spt_16k_page_m   = 1 << spt_16k_page,
aoqi@1: 
aoqi@1: 		 //////////////////////add some other feature here//////////////////
aoqi@1: 	 };
aoqi@1: 		 
aoqi@1: 	static int  _features;
aoqi@1: 	static const char* _features_str;
aoqi@1: 
aoqi@1: 	static void print_features();
aoqi@1: 	static int  determine_features();
aoqi@1: 
aoqi@1: public:
aoqi@1: 	// Initialization
aoqi@1: 	static void initialize();
aoqi@1: 	
aoqi@1: 	//mips has no such instructions, use ll/sc instead
aoqi@1: 	static bool supports_compare_and_exchange() { return false; }
aoqi@1: 
aoqi@1: 	static bool has_l2_cache() { return _features & with_l2_cache_m; }
aoqi@1: 	static bool has_16k_page() { return _features & spt_16k_page_m; }
aoqi@1: 		
aoqi@1: 	//////////////////////add some other feature here//////////////////
aoqi@1: 
aoqi@1: 	static const char* cpu_features() { return _features_str; }
aoqi@1: 	  
aoqi@1: 	// Assembler testing
aoqi@1: 	static void allow_all();
aoqi@1: 	static void revert();		
aoqi@1: };
aoqi@1: 
aoqi@1: #endif // CPU_MIPS_VM_VM_VERSION_MIPS_HPP