136 lines
4.9 KiB
C++
136 lines
4.9 KiB
C++
/*
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* Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2012, 2020 SAP SE. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef CPU_PPC_VM_VERSION_PPC_HPP
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#define CPU_PPC_VM_VERSION_PPC_HPP
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#include "runtime/abstract_vm_version.hpp"
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#include "runtime/globals_extension.hpp"
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class VM_Version: public Abstract_VM_Version {
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protected:
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enum Feature_Flag {
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fsqrt,
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fsqrts,
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isel,
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lxarxeh,
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cmpb,
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popcntb,
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popcntw,
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fcfids,
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vand,
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lqarx,
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vcipher,
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vpmsumb,
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mfdscr,
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vsx,
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ldbrx,
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stdbrx,
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vshasig,
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rtm,
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darn,
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brw,
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num_features // last entry to count features
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};
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enum Feature_Flag_Set {
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unknown_m = 0,
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fsqrt_m = (1 << fsqrt ),
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fsqrts_m = (1 << fsqrts ),
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isel_m = (1 << isel ),
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lxarxeh_m = (1 << lxarxeh),
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cmpb_m = (1 << cmpb ),
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popcntb_m = (1 << popcntb),
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popcntw_m = (1 << popcntw),
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fcfids_m = (1 << fcfids ),
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vand_m = (1 << vand ),
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lqarx_m = (1 << lqarx ),
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vcipher_m = (1 << vcipher),
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vpmsumb_m = (1 << vpmsumb),
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mfdscr_m = (1 << mfdscr ),
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vsx_m = (1 << vsx ),
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ldbrx_m = (1 << ldbrx ),
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stdbrx_m = (1 << stdbrx ),
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vshasig_m = (1 << vshasig),
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rtm_m = (1 << rtm ),
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darn_m = (1 << darn ),
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brw_m = (1 << brw ),
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all_features_m = (unsigned long)-1
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};
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static bool _is_determine_features_test_running;
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static void print_features();
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static void determine_features(); // also measures cache line size
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static void config_dscr(); // Power 8: Configure Data Stream Control Register.
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public:
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// Initialization
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static void initialize();
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static void check_virtualizations();
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// Override Abstract_VM_Version implementation
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static void print_platform_virtualization_info(outputStream*);
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// Override Abstract_VM_Version implementation
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static bool use_biased_locking();
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// PPC64 supports fast class initialization checks for static methods.
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static bool supports_fast_class_init_checks() { return true; }
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static bool is_determine_features_test_running() { return _is_determine_features_test_running; }
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// CPU instruction support
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static bool has_fsqrt() { return (_features & fsqrt_m) != 0; }
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static bool has_fsqrts() { return (_features & fsqrts_m) != 0; }
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static bool has_isel() { return (_features & isel_m) != 0; }
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static bool has_lxarxeh() { return (_features & lxarxeh_m) !=0; }
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static bool has_cmpb() { return (_features & cmpb_m) != 0; }
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static bool has_popcntb() { return (_features & popcntb_m) != 0; }
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static bool has_popcntw() { return (_features & popcntw_m) != 0; }
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static bool has_fcfids() { return (_features & fcfids_m) != 0; }
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static bool has_vand() { return (_features & vand_m) != 0; }
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static bool has_lqarx() { return (_features & lqarx_m) != 0; }
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static bool has_vcipher() { return (_features & vcipher_m) != 0; }
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static bool has_vpmsumb() { return (_features & vpmsumb_m) != 0; }
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static bool has_mfdscr() { return (_features & mfdscr_m) != 0; }
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static bool has_vsx() { return (_features & vsx_m) != 0; }
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static bool has_ldbrx() { return (_features & ldbrx_m) != 0; }
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static bool has_stdbrx() { return (_features & stdbrx_m) != 0; }
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static bool has_vshasig() { return (_features & vshasig_m) != 0; }
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static bool has_tm() { return (_features & rtm_m) != 0; }
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static bool has_darn() { return (_features & darn_m) != 0; }
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static bool has_brw() { return (_features & brw_m) != 0; }
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static bool has_mtfprd() { return has_vpmsumb(); } // alias for P8
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// Assembler testing
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static void allow_all();
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static void revert();
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// POWER 8: DSCR current value.
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static uint64_t _dscr_val;
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};
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#endif // CPU_PPC_VM_VERSION_PPC_HPP
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