1 /* 2 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2012, 2019 SAP SE. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #ifndef CPU_PPC_VM_VERSION_PPC_HPP 27 #define CPU_PPC_VM_VERSION_PPC_HPP 28 29 #include "runtime/abstract_vm_version.hpp" 30 #include "runtime/globals_extension.hpp" 31 32 class VM_Version: public Abstract_VM_Version { 33 protected: 34 enum Feature_Flag { 35 fsqrt, 36 fsqrts, 37 isel, 38 lxarxeh, 39 cmpb, 40 popcntb, 41 popcntw, 42 fcfids, 43 vand, 44 lqarx, 45 vcipher, 46 vpmsumb, 47 mfdscr, 48 vsx, 49 ldbrx, 50 stdbrx, 51 vshasig, 52 rtm, 53 darn, 54 num_features // last entry to count features 55 }; 56 enum Feature_Flag_Set { 57 unknown_m = 0, 58 fsqrt_m = (1 << fsqrt ), 59 fsqrts_m = (1 << fsqrts ), 60 isel_m = (1 << isel ), 61 lxarxeh_m = (1 << lxarxeh), 62 cmpb_m = (1 << cmpb ), 63 popcntb_m = (1 << popcntb), 64 popcntw_m = (1 << popcntw), 65 fcfids_m = (1 << fcfids ), 66 vand_m = (1 << vand ), 67 lqarx_m = (1 << lqarx ), 68 vcipher_m = (1 << vcipher), 69 vpmsumb_m = (1 << vpmsumb), 70 mfdscr_m = (1 << mfdscr ), 71 vsx_m = (1 << vsx ), 72 ldbrx_m = (1 << ldbrx ), 73 stdbrx_m = (1 << stdbrx ), 74 vshasig_m = (1 << vshasig), 75 rtm_m = (1 << rtm ), 76 darn_m = (1 << darn ), 77 all_features_m = (unsigned long)-1 78 }; 79 80 static bool _is_determine_features_test_running; 81 82 static void print_features(); 83 static void determine_features(); // also measures cache line size 84 static void config_dscr(); // Power 8: Configure Data Stream Control Register. 85 static void determine_section_size(); 86 static void power6_micro_bench(); 87 public: 88 // Initialization 89 static void initialize(); 90 static void check_virtualizations(); 91 92 // Override Abstract_VM_Version implementation 93 static void print_platform_virtualization_info(outputStream*); 94 95 // Override Abstract_VM_Version implementation 96 static bool use_biased_locking(); 97 98 // PPC64 supports fast class initialization checks for static methods. supports_fast_class_init_checks()99 static bool supports_fast_class_init_checks() { return true; } 100 is_determine_features_test_running()101 static bool is_determine_features_test_running() { return _is_determine_features_test_running; } 102 // CPU instruction support has_fsqrt()103 static bool has_fsqrt() { return (_features & fsqrt_m) != 0; } has_fsqrts()104 static bool has_fsqrts() { return (_features & fsqrts_m) != 0; } has_isel()105 static bool has_isel() { return (_features & isel_m) != 0; } has_lxarxeh()106 static bool has_lxarxeh() { return (_features & lxarxeh_m) !=0; } has_cmpb()107 static bool has_cmpb() { return (_features & cmpb_m) != 0; } has_popcntb()108 static bool has_popcntb() { return (_features & popcntb_m) != 0; } has_popcntw()109 static bool has_popcntw() { return (_features & popcntw_m) != 0; } has_fcfids()110 static bool has_fcfids() { return (_features & fcfids_m) != 0; } has_vand()111 static bool has_vand() { return (_features & vand_m) != 0; } has_lqarx()112 static bool has_lqarx() { return (_features & lqarx_m) != 0; } has_vcipher()113 static bool has_vcipher() { return (_features & vcipher_m) != 0; } has_vpmsumb()114 static bool has_vpmsumb() { return (_features & vpmsumb_m) != 0; } has_mfdscr()115 static bool has_mfdscr() { return (_features & mfdscr_m) != 0; } has_vsx()116 static bool has_vsx() { return (_features & vsx_m) != 0; } has_ldbrx()117 static bool has_ldbrx() { return (_features & ldbrx_m) != 0; } has_stdbrx()118 static bool has_stdbrx() { return (_features & stdbrx_m) != 0; } has_vshasig()119 static bool has_vshasig() { return (_features & vshasig_m) != 0; } has_tm()120 static bool has_tm() { return (_features & rtm_m) != 0; } has_darn()121 static bool has_darn() { return (_features & darn_m) != 0; } 122 has_mtfprd()123 static bool has_mtfprd() { return has_vpmsumb(); } // alias for P8 124 125 // Assembler testing 126 static void allow_all(); 127 static void revert(); 128 129 // POWER 8: DSCR current value. 130 static uint64_t _dscr_val; 131 }; 132 133 #endif // CPU_PPC_VM_VERSION_PPC_HPP 134