1 /*
 2  * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
 3  * Copyright (c) 2020, 2021, Huawei Technologies Co., Ltd. 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
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24  */
25 
26 #ifndef CPU_RISCV_VM_VERSION_EXT_RISCV_HPP
27 #define CPU_RISCV_VM_VERSION_EXT_RISCV_HPP
28 
29 #include "runtime/vm_version.hpp"
30 #include "utilities/macros.hpp"
31 
32 class VM_Version_Ext : public VM_Version {
33  private:
34   static const size_t      CPU_TYPE_DESC_BUF_SIZE = 256;
35   static const size_t      CPU_DETAILED_DESC_BUF_SIZE = 4096;
36 
37   static int               _no_of_threads;
38   static int               _no_of_cores;
39   static int               _no_of_sockets;
40   static bool              _initialized;
41   static char              _cpu_name[CPU_TYPE_DESC_BUF_SIZE];
42   static char              _cpu_desc[CPU_DETAILED_DESC_BUF_SIZE];
43 
44  public:
45   static int number_of_threads(void);
46   static int number_of_cores(void);
47   static int number_of_sockets(void);
48 
49   static const char* cpu_name(void);
50   static const char* cpu_description(void);
51   static void initialize_cpu_information(void);
52 
53 };
54 
55 #endif // CPU_RISCV_VM_VERSION_EXT_RISCV_HPP