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_VERSION_EXT_X86_HPP 26 #define CPU_X86_VM_VERSION_EXT_X86_HPP 27 28 #include "runtime/vm_version.hpp" 29 #include "utilities/macros.hpp" 30 31 class VM_Version_Ext : public VM_Version { 32 33 enum { 34 ExtendedFamilyIdLength_INTEL = 16, 35 ExtendedFamilyIdLength_AMD = 24 36 }; 37 38 private: 39 static const size_t VENDOR_LENGTH; 40 static const size_t CPU_EBS_MAX_LENGTH; 41 static const size_t CPU_TYPE_DESC_BUF_SIZE; 42 static const size_t CPU_DETAILED_DESC_BUF_SIZE; 43 44 static const char* const _family_id_intel[ExtendedFamilyIdLength_INTEL]; 45 static const char* const _family_id_amd[ExtendedFamilyIdLength_AMD]; 46 static const char* const _brand_id[]; 47 static const char* const _model_id_pentium_pro[]; 48 49 static const char* const _feature_edx_id[]; 50 static const char* const _feature_extended_edx_id[]; 51 static const char* const _feature_ecx_id[]; 52 static const char* const _feature_extended_ecx_id[]; 53 54 static int _no_of_threads; 55 static int _no_of_cores; 56 static int _no_of_packages; 57 static char* _cpu_brand_string; 58 static jlong _max_qualified_cpu_frequency; 59 60 static const char* cpu_family_description(void); 61 static const char* cpu_model_description(void); 62 static const char* cpu_brand(void); 63 static const char* cpu_brand_string(void); 64 65 static int cpu_type_description(char* const buf, size_t buf_len); 66 static int cpu_detailed_description(char* const buf, size_t buf_len); 67 static int cpu_extended_brand_string(char* const buf, size_t buf_len); 68 69 static bool cpu_is_em64t(void); 70 static bool is_netburst(void); 71 72 // Returns bytes written excluding termninating null byte. 73 static size_t cpu_write_support_string(char* const buf, size_t buf_len); 74 static void resolve_cpu_information_details(void); 75 static jlong max_qualified_cpu_freq_from_brand_string(void); 76 77 public: 78 // Offsets for cpuid asm stub brand string proc_name_0_offset()79 static ByteSize proc_name_0_offset() { return byte_offset_of(CpuidInfo, proc_name_0); } proc_name_1_offset()80 static ByteSize proc_name_1_offset() { return byte_offset_of(CpuidInfo, proc_name_1); } proc_name_2_offset()81 static ByteSize proc_name_2_offset() { return byte_offset_of(CpuidInfo, proc_name_2); } proc_name_3_offset()82 static ByteSize proc_name_3_offset() { return byte_offset_of(CpuidInfo, proc_name_3); } proc_name_4_offset()83 static ByteSize proc_name_4_offset() { return byte_offset_of(CpuidInfo, proc_name_4); } proc_name_5_offset()84 static ByteSize proc_name_5_offset() { return byte_offset_of(CpuidInfo, proc_name_5); } proc_name_6_offset()85 static ByteSize proc_name_6_offset() { return byte_offset_of(CpuidInfo, proc_name_6); } proc_name_7_offset()86 static ByteSize proc_name_7_offset() { return byte_offset_of(CpuidInfo, proc_name_7); } proc_name_8_offset()87 static ByteSize proc_name_8_offset() { return byte_offset_of(CpuidInfo, proc_name_8); } proc_name_9_offset()88 static ByteSize proc_name_9_offset() { return byte_offset_of(CpuidInfo, proc_name_9); } proc_name_10_offset()89 static ByteSize proc_name_10_offset() { return byte_offset_of(CpuidInfo, proc_name_10); } proc_name_11_offset()90 static ByteSize proc_name_11_offset() { return byte_offset_of(CpuidInfo, proc_name_11); } 91 92 static int number_of_threads(void); 93 static int number_of_cores(void); 94 static int number_of_sockets(void); 95 96 static jlong maximum_qualified_cpu_frequency(void); 97 98 static bool supports_tscinv_ext(void); 99 100 static const char* cpu_name(void); 101 static const char* cpu_description(void); 102 103 static void initialize(); 104 }; 105 106 #endif // CPU_X86_VM_VERSION_EXT_X86_HPP 107