aoqi@1: /*
aoqi@1:  * Copyright (c) 1997, 2014, 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: #include "precompiled.hpp"
aoqi@1: #include "asm/macroAssembler.hpp"
aoqi@1: #include "asm/macroAssembler.inline.hpp"
aoqi@1: #include "memory/resourceArea.hpp"
aoqi@1: #include "runtime/java.hpp"
aoqi@1: #include "runtime/stubCodeGenerator.hpp"
aoqi@1: #include "vm_version_mips.hpp"
aoqi@1: #ifdef TARGET_OS_FAMILY_linux
aoqi@1: # include "os_linux.inline.hpp"
aoqi@1: #endif
aoqi@1: #ifdef TARGET_OS_FAMILY_solaris
aoqi@1: # include "os_solaris.inline.hpp"
aoqi@1: #endif
aoqi@1: #ifdef TARGET_OS_FAMILY_windows
aoqi@1: # include "os_windows.inline.hpp"
aoqi@1: #endif
aoqi@1: #ifdef TARGET_OS_FAMILY_bsd
aoqi@1: # include "os_bsd.inline.hpp"
aoqi@1: #endif
aoqi@1: /*
aoqi@1: int VM_Version::_cpu;
aoqi@1: int VM_Version::_model;
aoqi@1: int VM_Version::_stepping;
aoqi@1: int VM_Version::_cpuFeatures;
aoqi@1: const char*           VM_Version::_features_str = "";
aoqi@1: VM_Version::CpuidInfo VM_Version::_cpuid_info   = { 0, };
aoqi@1: 
aoqi@1: static BufferBlob* stub_blob;
aoqi@1: static const int stub_size = 300;
aoqi@1: 
aoqi@1: extern "C" {
aoqi@1:   typedef void (*getPsrInfo_stub_t)(void*);
aoqi@1: }
aoqi@1: static getPsrInfo_stub_t getPsrInfo_stub = NULL;
aoqi@1: */
aoqi@1: int VM_Version::_features = VM_Version::unknown_m;
aoqi@1: const char* VM_Version::_features_str = "";
aoqi@1: /*
aoqi@1: class VM_Version_StubGenerator: public StubCodeGenerator {
aoqi@1:  public:
aoqi@1: 
aoqi@1:   VM_Version_StubGenerator(CodeBuffer *c) : StubCodeGenerator(c) {}
aoqi@1: 
aoqi@1:   address generate_getPsrInfo() {
aoqi@1:   };
aoqi@1: };
aoqi@1: 
aoqi@1: 
aoqi@1: void VM_Version::get_processor_features() {
aoqi@1: }
aoqi@1: */
aoqi@1: void VM_Version::initialize() {
aoqi@1: 	_features = determine_features();
aoqi@1: 	//no need, Abstract_VM_Version already define it as false
aoqi@1: 	_supports_cx8 = true;
aoqi@1: 
aoqi@1: 	char buf[256];
aoqi@1: 	jio_snprintf(buf, sizeof(buf), "%s, %s"
aoqi@1: #ifdef OPT_RANGECHECK
aoqi@1: 			", optimized range check"
aoqi@1: #endif
aoqi@1: #ifdef OPT_PHI_1
aoqi@1: 			", optimized phi"
aoqi@1: #endif
aoqi@1: #ifdef OPT_MERGE
aoqi@1: 			", optimized merge"
aoqi@1: #endif
aoqi@1: 			,	(has_l2_cache() ? "has_l2_cache" : ""), (has_16k_page() ? "has_16k_page" : "")
aoqi@1: 	);
aoqi@1: 	//////////////////////add some other feature here//////////////////
aoqi@203: #ifdef COMPILER2
aoqi@203:   if (UseLoongsonISA)
aoqi@203:     UseCountTrailingZerosInstruction = true;
aoqi@203: #endif
aoqi@1: 	
aoqi@1: 	// buf is started with ", " or is empty
aoqi@1: 	_features_str = strdup(buf);
aoqi@1: 	NOT_PRODUCT( if (PrintMiscellaneous && Verbose) print_features(); );
aoqi@1: }
aoqi@1: 
aoqi@1: void VM_Version::print_features() {
aoqi@1: 	tty->print_cr("Version:%s", cpu_features());
aoqi@1: }
aoqi@1: 
aoqi@1: int VM_Version::determine_features() {
aoqi@1: 	//////////////////////add some other feature here//////////////////
aoqi@1: 	return spt_16k_page_m; 
aoqi@1: }
aoqi@1: 
aoqi@1: static int saved_features = 0;
aoqi@1: 
aoqi@1: void VM_Version::allow_all() {
aoqi@1: 	saved_features = _features;
aoqi@1: 	_features     = all_features_m;
aoqi@1: }
aoqi@1: 
aoqi@1: void VM_Version::revert() {
aoqi@1: 	_features = saved_features;
aoqi@1: }