| /* |
| * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2012, 2017 SAP SE. 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_PPC_VM_VM_VERSION_PPC_HPP |
| #define CPU_PPC_VM_VM_VERSION_PPC_HPP |
| |
| #include "runtime/globals_extension.hpp" |
| #include "runtime/vm_version.hpp" |
| |
| class VM_Version: public Abstract_VM_Version { |
| protected: |
| enum Feature_Flag { |
| fsqrt, |
| fsqrts, |
| isel, |
| lxarxeh, |
| cmpb, |
| popcntb, |
| popcntw, |
| fcfids, |
| vand, |
| lqarx, |
| vcipher, |
| vpmsumb, |
| tcheck, |
| mfdscr, |
| vsx, |
| ldbrx, |
| stdbrx, |
| num_features // last entry to count features |
| }; |
| enum Feature_Flag_Set { |
| unknown_m = 0, |
| fsqrt_m = (1 << fsqrt ), |
| fsqrts_m = (1 << fsqrts ), |
| isel_m = (1 << isel ), |
| lxarxeh_m = (1 << lxarxeh), |
| cmpb_m = (1 << cmpb ), |
| popcntb_m = (1 << popcntb), |
| popcntw_m = (1 << popcntw), |
| fcfids_m = (1 << fcfids ), |
| vand_m = (1 << vand ), |
| lqarx_m = (1 << lqarx ), |
| vcipher_m = (1 << vcipher), |
| vpmsumb_m = (1 << vpmsumb), |
| tcheck_m = (1 << tcheck ), |
| mfdscr_m = (1 << mfdscr ), |
| vsx_m = (1 << vsx ), |
| ldbrx_m = (1 << ldbrx ), |
| stdbrx_m = (1 << stdbrx ), |
| all_features_m = (unsigned long)-1 |
| }; |
| |
| static bool _is_determine_features_test_running; |
| |
| static void print_features(); |
| static void determine_features(); // also measures cache line size |
| static void config_dscr(); // Power 8: Configure Data Stream Control Register. |
| static void determine_section_size(); |
| static void power6_micro_bench(); |
| public: |
| // Initialization |
| static void initialize(); |
| |
| // Override Abstract_VM_Version implementation |
| static bool use_biased_locking(); |
| |
| static bool is_determine_features_test_running() { return _is_determine_features_test_running; } |
| // CPU instruction support |
| static bool has_fsqrt() { return (_features & fsqrt_m) != 0; } |
| static bool has_fsqrts() { return (_features & fsqrts_m) != 0; } |
| static bool has_isel() { return (_features & isel_m) != 0; } |
| static bool has_lxarxeh() { return (_features & lxarxeh_m) !=0; } |
| static bool has_cmpb() { return (_features & cmpb_m) != 0; } |
| static bool has_popcntb() { return (_features & popcntb_m) != 0; } |
| static bool has_popcntw() { return (_features & popcntw_m) != 0; } |
| static bool has_fcfids() { return (_features & fcfids_m) != 0; } |
| static bool has_vand() { return (_features & vand_m) != 0; } |
| static bool has_lqarx() { return (_features & lqarx_m) != 0; } |
| static bool has_vcipher() { return (_features & vcipher_m) != 0; } |
| static bool has_vpmsumb() { return (_features & vpmsumb_m) != 0; } |
| static bool has_tcheck() { return (_features & tcheck_m) != 0; } |
| static bool has_mfdscr() { return (_features & mfdscr_m) != 0; } |
| static bool has_vsx() { return (_features & vsx_m) != 0; } |
| static bool has_ldbrx() { return (_features & ldbrx_m) != 0; } |
| static bool has_stdbrx() { return (_features & stdbrx_m) != 0; } |
| static bool has_mtfprd() { return has_vpmsumb(); } // alias for P8 |
| |
| // Assembler testing |
| static void allow_all(); |
| static void revert(); |
| |
| // POWER 8: DSCR current value. |
| static uint64_t _dscr_val; |
| }; |
| |
| #endif // CPU_PPC_VM_VM_VERSION_PPC_HPP |