jdk8-mips64-public/hotspot: src/cpu/mips/vm/vm_version

src/cpu/mips/vm/vm_version_mips.hpp@191e90d9878f (annotated)

src/cpu/mips/vm/vm_version_mips.hpp

Tue, 28 May 2019 16:35:59 +0800

author: aoqi
date: Tue, 28 May 2019 16:35:59 +0800
changeset 9578: 191e90d9878f
parent 9251: 1ccc5a3b3671
child 9644: 3089aa0aa0ee
permissions: -rw-r--r--

#9224 Backport of #9173 Refactor read_cpu_info and supported 3A4000/3B4000
Reviewed-by: jiefu

 /*
  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2015, 2019, Loongson Technology. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef CPU_MIPS_VM_VM_VERSION_MIPS_HPP
 #define CPU_MIPS_VM_VM_VERSION_MIPS_HPP
 #include "runtime/globals_extension.hpp"
 #include "runtime/vm_version.hpp"
 class VM_Version: public Abstract_VM_Version {
 protected:
   enum Feature_Flag {
     with_l2_cache   = 0,
     spt_16k_page    = 1,
     gs464v          = 2,
     gs464e          = 3,
     gs464           = 4,
     gs264           = 5,
     with_gs_support = 6,
      //////////////////////add some other feature here//////////////////
   };
   enum Feature_Flag_Set {
     unknown_m         = 0,
     all_features_m    = -1,
     with_l2_cache_m   = 1 << with_l2_cache,
     spt_16k_page_m    = 1 << spt_16k_page,
     with_gs_support_m = 1 << with_gs_support,
     gs464_m           = 1 << gs464,
     gs464v_m          = 1 << gs464v,
     gs464e_m          = 1 << gs464e,
     gs264_m           = 1 << gs264,
     //////////////////////add some other feature here//////////////////
   };
   enum Loongson_Family {
     L_3A1000    = 0,
     L_3B1500    = 1,
     L_3A2000    = 2,
     L_3B2000    = 3,
     L_3A3000    = 4,
     L_3B3000    = 5,
     L_2K1000    = 6,
     L_3A4000    = 7,
     L_3B4000    = 8,
     L_UNKNOWN   = 9
   };
   struct Loongson_Cpuinfo {
     Loongson_Family    id;
     const char* const  match_str;
   };
   static int  _features;
   static const char* _features_str;
   static void print_features();
   static int  determine_features();
   static int  platform_features(int features);
 public:
   // Initialization
   static void initialize();
   //mips has no such instructions, use ll/sc instead
   static bool supports_compare_and_exchange() { return false; }
   static bool has_l2_cache() { return _features & with_l2_cache_m; }
   static bool has_16k_page() { return _features & spt_16k_page_m; }
   static bool is_gs264()     { return _features & gs264_m; }
   static bool is_gs464()     { return _features & gs464_m; }
   static bool is_gs464v()    { return _features & gs464v_m; }
   static bool is_gs464e()    { return _features & gs464e_m; }
   static bool is_loongson()  { return _features & with_gs_support_m; }
   static bool supports_dsp() { return 0; /*Loongson CPUs do not support DSP instructions well*/}
   static bool supports_ps()  { return 1; /*Loongson CPUs support ps instructions*/}
   static bool supports_3d()  { return 0; /*Loongson CPUs do not support 3d instructions*/}
   //////////////////////add some other feature here//////////////////
   static const char* cpu_features() { return _features_str; }
   // Assembler testing
   static void allow_all();
   static void revert();
 };
 #endif // CPU_MIPS_VM_VM_VERSION_MIPS_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/mips/vm/vm_version_mips.hpp@191e90d9878f (annotated)

src/cpu/mips/vm/vm_version_mips.hpp