1 /*
2 * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, 2020, Red Hat Inc. 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.
136 };
137
138 static int cpu_family() { return _cpu; }
139 static int cpu_model() { return _model; }
140 static int cpu_model2() { return _model2; }
141 static int cpu_variant() { return _variant; }
142 static int cpu_revision() { return _revision; }
143
144 static bool is_zva_enabled() { return 0 <= _zva_length; }
145 static int zva_length() {
146 assert(is_zva_enabled(), "ZVA not available");
147 return _zva_length;
148 }
149
150 static int icache_line_size() { return _icache_line_size; }
151 static int dcache_line_size() { return _dcache_line_size; }
152 static int get_initial_sve_vector_length() { return _initial_sve_vector_length; };
153
154 static bool supports_fast_class_init_checks() { return true; }
155 constexpr static bool supports_stack_watermark_barrier() { return true; }
156
157 static void get_compatible_board(char *buf, int buflen);
158
159 static const SpinWait& spin_wait_desc() { return _spin_wait; }
160
161 static bool supports_on_spin_wait() { return _spin_wait.inst() != SpinWait::NONE; }
162
163 #ifdef __APPLE__
164 // Is the CPU running emulated (for example macOS Rosetta running x86_64 code on M1 ARM (aarch64)
165 static bool is_cpu_emulated();
166 #endif
167 };
168
169 #endif // CPU_AARCH64_VM_VERSION_AARCH64_HPP
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1 /*
2 * Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, 2020, Red Hat Inc. 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.
136 };
137
138 static int cpu_family() { return _cpu; }
139 static int cpu_model() { return _model; }
140 static int cpu_model2() { return _model2; }
141 static int cpu_variant() { return _variant; }
142 static int cpu_revision() { return _revision; }
143
144 static bool is_zva_enabled() { return 0 <= _zva_length; }
145 static int zva_length() {
146 assert(is_zva_enabled(), "ZVA not available");
147 return _zva_length;
148 }
149
150 static int icache_line_size() { return _icache_line_size; }
151 static int dcache_line_size() { return _dcache_line_size; }
152 static int get_initial_sve_vector_length() { return _initial_sve_vector_length; };
153
154 static bool supports_fast_class_init_checks() { return true; }
155 constexpr static bool supports_stack_watermark_barrier() { return true; }
156 constexpr static bool supports_recursive_lightweight_locking() { return true; }
157
158 static void get_compatible_board(char *buf, int buflen);
159
160 static const SpinWait& spin_wait_desc() { return _spin_wait; }
161
162 static bool supports_on_spin_wait() { return _spin_wait.inst() != SpinWait::NONE; }
163
164 #ifdef __APPLE__
165 // Is the CPU running emulated (for example macOS Rosetta running x86_64 code on M1 ARM (aarch64)
166 static bool is_cpu_emulated();
167 #endif
168 };
169
170 #endif // CPU_AARCH64_VM_VERSION_AARCH64_HPP
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