/*
* Copyright ( c ) 1997 , 2021 , Oracle and / or its affiliates . All rights reserved .
* Copyright ( c ) 2012 , 2021 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_VERSION_PPC_HPP
#define CPU_PPC_VM_VERSION_PPC_HPP
#include "runtime/abstract_vm_version.hpp"
#include "runtime/globals_extension.hpp"
class VM_Version: public Abstract_VM_Version {
protected :
enum Feature_Flag {
fsqrt,
fsqrts,
isel,
lxarxeh,
cmpb,
popcntb,
popcntw,
fcfids,
vand,
lqarx,
vcipher,
vpmsumb,
mfdscr,
vsx,
ldbrx,
stdbrx,
vshasig,
rtm,
darn,
brw,
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),
mfdscr_m = (1 << mfdscr ),
vsx_m = (1 << vsx ),
ldbrx_m = (1 << ldbrx ),
stdbrx_m = (1 << stdbrx ),
vshasig_m = (1 << vshasig),
rtm_m = (1 << rtm ),
darn_m = (1 << darn ),
brw_m = (1 << brw ),
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.
public :
// Initialization
static void initialize();
static void check_virtualizations();
// Override Abstract_VM_Version implementation
static void print_platform_virtualization_info(outputStream*);
// PPC64 supports fast class initialization checks for static methods.
static bool supports_fast_class_init_checks() { return true ; }
constexpr static bool supports_stack_watermark_barrier() { return true ; }
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_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_vshasig() { return (_features & vshasig_m) != 0 ; }
static bool has_tm() { return (_features & rtm_m) != 0 ; }
static bool has_darn() { return (_features & darn_m) != 0 ; }
static bool has_brw() { return (_features & brw_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;
static void initialize_cpu_information(void );
};
#endif // CPU_PPC_VM_VERSION_PPC_HPP
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