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() {
chenhaoxuan@358: 
fujie@254:   _features = determine_features();
fujie@254:   //no need, Abstract_VM_Version already define it as false
fujie@254:   _supports_cx8 = true;
chenhaoxuan@358: 
chenhaoxuan@358:   //////////////////////add some other feature here//////////////////
aoqi@203: #ifdef COMPILER2
aoqi@209:   if (MaxVectorSize > 0) {
aoqi@209:     if (!is_power_of_2(MaxVectorSize)) {
aoqi@209:       warning("MaxVectorSize must be a power of 2");
aoqi@209:       MaxVectorSize = 8;
aoqi@209:     }
aoqi@209:     if (MaxVectorSize > 0 && supports_ps()) {
aoqi@209:       MaxVectorSize = 8;
aoqi@209:     }
aoqi@209:   }
chenhaoxuan@358: 
chenhaoxuan@358:   if (is_gs464e()) {
chenhaoxuan@358:     if (FLAG_IS_DEFAULT(UseCountTrailingZerosInstruction)) {
chenhaoxuan@358:       FLAG_SET_DEFAULT(UseCountTrailingZerosInstruction, 1);
chenhaoxuan@358:     }
chenhaoxuan@358:   } else if (UseCountTrailingZerosInstruction) {
chenhaoxuan@358:     if (!FLAG_IS_DEFAULT(UseCountTrailingZerosInstruction))
chenhaoxuan@358:       warning("Only 3A2000/3000 CPUs support UseCountTrailingZerosInstruction");
chenhaoxuan@358:     FLAG_SET_DEFAULT(UseCountTrailingZerosInstruction, 0);
chenhaoxuan@358:   }
aoqi@203: #endif
aoqi@209:   UseSSE = 0; // Only on x86 and x64
fujie@254: 
chenhaoxuan@358:   if (is_loongson()) {
chenhaoxuan@358:     if (FLAG_IS_DEFAULT(UseLoongsonISA)) {
chenhaoxuan@358:       FLAG_SET_DEFAULT(UseLoongsonISA, 1);
chenhaoxuan@358:     }
chenhaoxuan@358:   } else if (UseLoongsonISA) {
chenhaoxuan@358:     if (!FLAG_IS_DEFAULT(UseLoongsonISA))
chenhaoxuan@358:       warning("Only Loongson CPUs support LoongISA");
chenhaoxuan@358:     FLAG_SET_DEFAULT(UseLoongsonISA, 0);
chenhaoxuan@358:   }
chenhaoxuan@358: 
chenhaoxuan@358:   if (is_gs464e()) {
chenhaoxuan@358:     if (FLAG_IS_DEFAULT(Use3A2000)) {
chenhaoxuan@358:       FLAG_SET_DEFAULT(Use3A2000, 1);
chenhaoxuan@358:     }
chenhaoxuan@358:   } else if (Use3A2000) {
chenhaoxuan@358:     if (!FLAG_IS_DEFAULT(Use3A2000))
chenhaoxuan@358:       warning("Only 3A2000/3000 CPUs support this option");
chenhaoxuan@358:     FLAG_SET_DEFAULT(Use3A2000, 0);
chenhaoxuan@358:   }
chenhaoxuan@358: 
chenhaoxuan@358:   char buf[256];
chenhaoxuan@358:   jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
chenhaoxuan@358:               (has_l2_cache() ? ", has_l2_cache" : ""),
chenhaoxuan@358:               (has_16k_page() ? ", has_16k_page" : ""),
chenhaoxuan@358:               (is_loongson()  ? ", on_loongson"  : ""),
chenhaoxuan@358:               (is_gs464() ? ", 3A1000" : ""),
chenhaoxuan@358:               (is_gs464v() ? ", 3B1500" : "" ),
chenhaoxuan@358:               (is_gs464e() ? ", 3A2000/3A3000" : ""),
chenhaoxuan@358:               (UseLoongsonISA ? ", UseLoongsonISA" : ""),
chenhaoxuan@358:               (UseCountTrailingZerosInstruction ? ", UseCountTrailingZerosInstruction" : ""),
chenhaoxuan@358:               (Use3A2000 ? ", Use3A2000" : ""));
chenhaoxuan@358: 
chenhaoxuan@358:   // buf is started with ", " or is empty
chenhaoxuan@358:   _features_str = strdup(strlen(buf) > 2 ? buf + 2 : buf);
chenhaoxuan@358: 
fujie@254:   if (FLAG_IS_DEFAULT(AllocatePrefetchStyle)) {
fujie@254:     FLAG_SET_DEFAULT(AllocatePrefetchStyle, 1);
fujie@254:   }
fujie@254: 
fujie@254:   if (FLAG_IS_DEFAULT(AllocatePrefetchLines)) {
fujie@254:     FLAG_SET_DEFAULT(AllocatePrefetchLines, 1);
fujie@254:   }
fujie@254: 
fujie@254:   if (FLAG_IS_DEFAULT(AllocatePrefetchStepSize)) {
fujie@254:     FLAG_SET_DEFAULT(AllocatePrefetchStepSize, 64);
fujie@254:   }
chenhaoxuan@358: 
fujie@254:   if (FLAG_IS_DEFAULT(AllocatePrefetchDistance)) {
fujie@254:     FLAG_SET_DEFAULT(AllocatePrefetchDistance, 64);
fujie@254:   }
fujie@254: 
fujie@254:   if (FLAG_IS_DEFAULT(AllocateInstancePrefetchLines)) {
fujie@254:     FLAG_SET_DEFAULT(AllocateInstancePrefetchLines, 1);
fujie@254:   }
fujie@254: 
fujie@254:   NOT_PRODUCT( if (PrintMiscellaneous && Verbose) print_features(); );
aoqi@1: }
aoqi@1: 
aoqi@1: void VM_Version::print_features() {
chenhaoxuan@358:   tty->print_cr("Version:%s", cpu_features());
aoqi@1: }
aoqi@1: 
aoqi@1: int VM_Version::determine_features() {
chenhaoxuan@358:   //////////////////////add some other feature here//////////////////
chenhaoxuan@358:   int features = platform_features(unknown_m);
chenhaoxuan@358:   //spt_16k_page_m; 
chenhaoxuan@358:   return features;
aoqi@1: }
aoqi@1: 
aoqi@1: static int saved_features = 0;
aoqi@1: 
aoqi@1: void VM_Version::allow_all() {
chenhaoxuan@358:   saved_features = _features;
chenhaoxuan@358:   _features      = all_features_m;
aoqi@1: }
aoqi@1: 
aoqi@1: void VM_Version::revert() {
chenhaoxuan@358:   _features = saved_features;
aoqi@1: }