Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2006-2013 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // This module contains the architecture-specific code. This make the rest of |
| 6 | // the code less dependent on differences between different processor |
| 7 | // architecture. |
| 8 | // The classes have the same definition for all architectures. The |
| 9 | // implementation for a particular architecture is put in cpu_<arch>.cc. |
| 10 | // The build system then uses the implementation for the target architecture. |
| 11 | // |
| 12 | |
| 13 | #ifndef V8_BASE_CPU_H_ |
| 14 | #define V8_BASE_CPU_H_ |
| 15 | |
| 16 | #include "src/base/macros.h" |
| 17 | |
| 18 | namespace v8 { |
| 19 | namespace base { |
| 20 | |
| 21 | // ---------------------------------------------------------------------------- |
| 22 | // CPU |
| 23 | // |
| 24 | // Query information about the processor. |
| 25 | // |
| 26 | // This class also has static methods for the architecture specific functions. |
| 27 | // Add methods here to cope with differences between the supported |
| 28 | // architectures. For each architecture the file cpu_<arch>.cc contains the |
| 29 | // implementation of these static functions. |
| 30 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 31 | class CPU final { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 32 | public: |
| 33 | CPU(); |
| 34 | |
| 35 | // x86 CPUID information |
| 36 | const char* vendor() const { return vendor_; } |
| 37 | int stepping() const { return stepping_; } |
| 38 | int model() const { return model_; } |
| 39 | int ext_model() const { return ext_model_; } |
| 40 | int family() const { return family_; } |
| 41 | int ext_family() const { return ext_family_; } |
| 42 | int type() const { return type_; } |
| 43 | |
| 44 | // arm implementer/part information |
| 45 | int implementer() const { return implementer_; } |
| 46 | static const int ARM = 0x41; |
| 47 | static const int NVIDIA = 0x4e; |
| 48 | static const int QUALCOMM = 0x51; |
| 49 | int architecture() const { return architecture_; } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 50 | int variant() const { return variant_; } |
| 51 | static const int NVIDIA_DENVER = 0x0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | int part() const { return part_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 53 | |
| 54 | // ARM-specific part codes |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 55 | static const int ARM_CORTEX_A5 = 0xc05; |
| 56 | static const int ARM_CORTEX_A7 = 0xc07; |
| 57 | static const int ARM_CORTEX_A8 = 0xc08; |
| 58 | static const int ARM_CORTEX_A9 = 0xc09; |
| 59 | static const int ARM_CORTEX_A12 = 0xc0c; |
| 60 | static const int ARM_CORTEX_A15 = 0xc0f; |
| 61 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 62 | // Denver-specific part code |
| 63 | static const int NVIDIA_DENVER_V10 = 0x002; |
| 64 | |
| 65 | // PPC-specific part codes |
| 66 | enum { |
| 67 | PPC_POWER5, |
| 68 | PPC_POWER6, |
| 69 | PPC_POWER7, |
| 70 | PPC_POWER8, |
| 71 | PPC_G4, |
| 72 | PPC_G5, |
| 73 | PPC_PA6T |
| 74 | }; |
| 75 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 76 | // General features |
| 77 | bool has_fpu() const { return has_fpu_; } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 78 | int icache_line_size() const { return icache_line_size_; } |
| 79 | int dcache_line_size() const { return dcache_line_size_; } |
| 80 | static const int UNKNOWN_CACHE_LINE_SIZE = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 81 | |
| 82 | // x86 features |
| 83 | bool has_cmov() const { return has_cmov_; } |
| 84 | bool has_sahf() const { return has_sahf_; } |
| 85 | bool has_mmx() const { return has_mmx_; } |
| 86 | bool has_sse() const { return has_sse_; } |
| 87 | bool has_sse2() const { return has_sse2_; } |
| 88 | bool has_sse3() const { return has_sse3_; } |
| 89 | bool has_ssse3() const { return has_ssse3_; } |
| 90 | bool has_sse41() const { return has_sse41_; } |
| 91 | bool has_sse42() const { return has_sse42_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 92 | bool has_osxsave() const { return has_osxsave_; } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 93 | bool has_avx() const { return has_avx_; } |
| 94 | bool has_fma3() const { return has_fma3_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 95 | bool has_bmi1() const { return has_bmi1_; } |
| 96 | bool has_bmi2() const { return has_bmi2_; } |
| 97 | bool has_lzcnt() const { return has_lzcnt_; } |
| 98 | bool has_popcnt() const { return has_popcnt_; } |
| 99 | bool is_atom() const { return is_atom_; } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 100 | bool has_non_stop_time_stamp_counter() const { |
| 101 | return has_non_stop_time_stamp_counter_; |
| 102 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 103 | |
| 104 | // arm features |
| 105 | bool has_idiva() const { return has_idiva_; } |
| 106 | bool has_neon() const { return has_neon_; } |
| 107 | bool has_thumb2() const { return has_thumb2_; } |
| 108 | bool has_vfp() const { return has_vfp_; } |
| 109 | bool has_vfp3() const { return has_vfp3_; } |
| 110 | bool has_vfp3_d32() const { return has_vfp3_d32_; } |
| 111 | |
| 112 | // mips features |
| 113 | bool is_fp64_mode() const { return is_fp64_mode_; } |
| 114 | |
| 115 | private: |
| 116 | char vendor_[13]; |
| 117 | int stepping_; |
| 118 | int model_; |
| 119 | int ext_model_; |
| 120 | int family_; |
| 121 | int ext_family_; |
| 122 | int type_; |
| 123 | int implementer_; |
| 124 | int architecture_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 125 | int variant_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 126 | int part_; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 127 | int icache_line_size_; |
| 128 | int dcache_line_size_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 129 | bool has_fpu_; |
| 130 | bool has_cmov_; |
| 131 | bool has_sahf_; |
| 132 | bool has_mmx_; |
| 133 | bool has_sse_; |
| 134 | bool has_sse2_; |
| 135 | bool has_sse3_; |
| 136 | bool has_ssse3_; |
| 137 | bool has_sse41_; |
| 138 | bool has_sse42_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 139 | bool is_atom_; |
| 140 | bool has_osxsave_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 141 | bool has_avx_; |
| 142 | bool has_fma3_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 143 | bool has_bmi1_; |
| 144 | bool has_bmi2_; |
| 145 | bool has_lzcnt_; |
| 146 | bool has_popcnt_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 147 | bool has_idiva_; |
| 148 | bool has_neon_; |
| 149 | bool has_thumb2_; |
| 150 | bool has_vfp_; |
| 151 | bool has_vfp3_; |
| 152 | bool has_vfp3_d32_; |
| 153 | bool is_fp64_mode_; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 154 | bool has_non_stop_time_stamp_counter_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 155 | }; |
| 156 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 157 | } // namespace base |
| 158 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 159 | |
| 160 | #endif // V8_BASE_CPU_H_ |