1 /*
   2  * Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_X86_VM_VM_VERSION_EXT_X86_HPP
  26 #define CPU_X86_VM_VM_VERSION_EXT_X86_HPP
  27 
  28 #include "utilities/macros.hpp"
  29 #include "vm_version_x86.hpp"
  30 
  31 class VM_Version_Ext : public VM_Version {
  32  private:
  33   static const size_t      VENDOR_LENGTH;
  34   static const size_t      CPU_EBS_MAX_LENGTH;
  35   static const size_t      CPU_TYPE_DESC_BUF_SIZE;
  36   static const size_t      CPU_DETAILED_DESC_BUF_SIZE;
  37 
  38   static const char* const _family_id_intel[];
  39   static const char* const _family_id_amd[];
  40   static const char* const _brand_id[];
  41   static const char* const _model_id_pentium_pro[];
  42 
  43   static const char* const _feature_edx_id[];
  44   static const char* const _feature_extended_edx_id[];
  45   static const char* const _feature_ecx_id[];
  46   static const char* const _feature_extended_ecx_id[];
  47 
  48   static int               _no_of_threads;
  49   static int               _no_of_cores;
  50   static int               _no_of_packages;
  51   static char*             _cpu_brand_string;
  52   static jlong             _max_qualified_cpu_frequency;
  53 
  54   static const char* cpu_family_description(void);
  55   static const char* cpu_model_description(void);
  56   static const char* cpu_brand(void);
  57   static const char* cpu_brand_string(void);
  58 
  59   static int cpu_type_description(char* const buf, size_t buf_len);
  60   static int cpu_detailed_description(char* const buf, size_t buf_len);
  61   static int cpu_extended_brand_string(char* const buf, size_t buf_len);
  62 
  63   static bool cpu_is_em64t(void);
  64   static bool is_netburst(void);
  65 
  66   static size_t cpu_write_support_string(char* const buf, size_t buf_len);
  67   static void resolve_cpu_information_details(void);
  68   static jlong max_qualified_cpu_freq_from_brand_string(void);
  69 
  70  public:
  71   // Offsets for cpuid asm stub brand string
  72   static ByteSize proc_name_0_offset() { return byte_offset_of(CpuidInfo, proc_name_0); }
  73   static ByteSize proc_name_1_offset() { return byte_offset_of(CpuidInfo, proc_name_1); }
  74   static ByteSize proc_name_2_offset() { return byte_offset_of(CpuidInfo, proc_name_2); }
  75   static ByteSize proc_name_3_offset() { return byte_offset_of(CpuidInfo, proc_name_3); }
  76   static ByteSize proc_name_4_offset() { return byte_offset_of(CpuidInfo, proc_name_4); }
  77   static ByteSize proc_name_5_offset() { return byte_offset_of(CpuidInfo, proc_name_5); }
  78   static ByteSize proc_name_6_offset() { return byte_offset_of(CpuidInfo, proc_name_6); }
  79   static ByteSize proc_name_7_offset() { return byte_offset_of(CpuidInfo, proc_name_7); }
  80   static ByteSize proc_name_8_offset() { return byte_offset_of(CpuidInfo, proc_name_8); }
  81   static ByteSize proc_name_9_offset() { return byte_offset_of(CpuidInfo, proc_name_9); }
  82   static ByteSize proc_name_10_offset() { return byte_offset_of(CpuidInfo, proc_name_10); }
  83   static ByteSize proc_name_11_offset() { return byte_offset_of(CpuidInfo, proc_name_11); }
  84 
  85   static int number_of_threads(void);
  86   static int number_of_cores(void);
  87   static int number_of_sockets(void);
  88 
  89   static jlong maximum_qualified_cpu_frequency(void);
  90 
  91   static bool supports_tscinv_ext(void);
  92 
  93   static const char* cpu_name(void);
  94   static const char* cpu_description(void);
  95 
  96   static void initialize();
  97 };
  98 
  99 #endif // CPU_X86_VM_VM_VERSION_EXT_X86_HPP