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/*
* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright 2012, 2018 SAP AG. 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,
dcba,
lqarx,
vcipher,
vpmsumb,
mfdscr,
vsx,
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 ),
dcba_m = (1 << dcba ),
lqarx_m = (1 << lqarx ),
vcipher_m = (1 << vcipher),
vpmsumb_m = (1 << vpmsumb),
mfdscr_m = (1 << mfdscr ),
vsx_m = (1 << vsx ),
all_features_m = -1
};
static int _features;
static int _measured_cache_line_size;
static const char* _features_str;
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();
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_dcba() { return (_features & dcba_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_mfdscr() { return (_features & mfdscr_m) != 0; }
static bool has_vsx() { return (_features & vsx_m) != 0; }
static const char* cpu_features() { return _features_str; }
static int get_cache_line_size() { return _measured_cache_line_size; }
// 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
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