Mercurial > hg > truffle
annotate src/cpu/sparc/vm/vm_version_sparc.hpp @ 2008:2f644f85485d
6961690: load oops from constant table on SPARC
Summary: oops should be loaded from the constant table of an nmethod instead of materializing them with a long code sequence.
Reviewed-by: never, kvn
| author | twisti |
|---|---|
| date | Fri, 03 Dec 2010 01:34:31 -0800 |
| parents | f95d63e2154a |
| children | c04052fd6ae1 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef CPU_SPARC_VM_VM_VERSION_SPARC_HPP |
| 26 #define CPU_SPARC_VM_VM_VERSION_SPARC_HPP | |
| 27 | |
| 28 #include "runtime/globals_extension.hpp" | |
| 29 #include "runtime/vm_version.hpp" | |
| 30 | |
| 0 | 31 class VM_Version: public Abstract_VM_Version { |
| 32 protected: | |
| 33 enum Feature_Flag { | |
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34 v8_instructions = 0, |
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35 hardware_mul32 = 1, |
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36 hardware_div32 = 2, |
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37 hardware_fsmuld = 3, |
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38 hardware_popc = 4, |
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39 v9_instructions = 5, |
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40 vis1_instructions = 6, |
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41 vis2_instructions = 7, |
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42 sun4v_instructions = 8, |
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43 blk_init_instructions = 9, |
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44 fmaf_instructions = 10 |
| 0 | 45 }; |
| 46 | |
| 47 enum Feature_Flag_Set { | |
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48 unknown_m = 0, |
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49 all_features_m = -1, |
| 0 | 50 |
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51 v8_instructions_m = 1 << v8_instructions, |
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52 hardware_mul32_m = 1 << hardware_mul32, |
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53 hardware_div32_m = 1 << hardware_div32, |
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54 hardware_fsmuld_m = 1 << hardware_fsmuld, |
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55 hardware_popc_m = 1 << hardware_popc, |
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56 v9_instructions_m = 1 << v9_instructions, |
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57 vis1_instructions_m = 1 << vis1_instructions, |
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58 vis2_instructions_m = 1 << vis2_instructions, |
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59 sun4v_m = 1 << sun4v_instructions, |
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60 blk_init_instructions_m = 1 << blk_init_instructions, |
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61 fmaf_instructions_m = 1 << fmaf_instructions, |
| 0 | 62 |
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63 generic_v8_m = v8_instructions_m | hardware_mul32_m | hardware_div32_m | hardware_fsmuld_m, |
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64 generic_v9_m = generic_v8_m | v9_instructions_m, |
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65 ultra3_m = generic_v9_m | vis1_instructions_m | vis2_instructions_m, |
| 0 | 66 |
| 67 // Temporary until we have something more accurate | |
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68 niagara1_unique_m = sun4v_m, |
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69 niagara1_m = generic_v9_m | niagara1_unique_m |
| 0 | 70 }; |
| 71 | |
| 72 static int _features; | |
| 73 static const char* _features_str; | |
| 74 | |
| 75 static void print_features(); | |
| 76 static int determine_features(); | |
| 77 static int platform_features(int features); | |
| 78 | |
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79 static bool is_niagara1(int features) { return (features & sun4v_m) != 0; } |
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80 static bool is_sparc64(int features) { return (features & fmaf_instructions_m) != 0; } |
| 0 | 81 |
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82 static int maximum_niagara1_processor_count() { return 32; } |
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83 |
| 0 | 84 public: |
| 85 // Initialization | |
| 86 static void initialize(); | |
| 87 | |
| 88 // Instruction support | |
| 89 static bool has_v8() { return (_features & v8_instructions_m) != 0; } | |
| 90 static bool has_v9() { return (_features & v9_instructions_m) != 0; } | |
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91 static bool has_hardware_mul32() { return (_features & hardware_mul32_m) != 0; } |
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92 static bool has_hardware_div32() { return (_features & hardware_div32_m) != 0; } |
| 0 | 93 static bool has_hardware_fsmuld() { return (_features & hardware_fsmuld_m) != 0; } |
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94 static bool has_hardware_popc() { return (_features & hardware_popc_m) != 0; } |
| 0 | 95 static bool has_vis1() { return (_features & vis1_instructions_m) != 0; } |
| 96 static bool has_vis2() { return (_features & vis2_instructions_m) != 0; } | |
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97 static bool has_blk_init() { return (_features & blk_init_instructions_m) != 0; } |
| 0 | 98 |
| 99 static bool supports_compare_and_exchange() | |
| 100 { return has_v9(); } | |
| 101 | |
| 102 static bool is_ultra3() { return (_features & ultra3_m) == ultra3_m; } | |
| 103 static bool is_sun4v() { return (_features & sun4v_m) != 0; } | |
| 104 static bool is_niagara1() { return is_niagara1(_features); } | |
| 2008 | 105 // Returns true if the platform is in the niagara line and |
| 106 // newer than the niagara1. | |
| 107 static bool is_niagara1_plus(); | |
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108 static bool is_sparc64() { return is_sparc64(_features); } |
| 0 | 109 |
| 110 static bool has_fast_fxtof() { return has_v9() && !is_ultra3(); } | |
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111 static bool has_fast_idiv() { return is_niagara1_plus() || is_sparc64(); } |
| 0 | 112 |
| 113 static const char* cpu_features() { return _features_str; } | |
| 114 | |
| 115 static intx L1_data_cache_line_size() { | |
| 116 return 64; // default prefetch block size on sparc | |
| 117 } | |
| 118 | |
| 119 // Prefetch | |
| 120 static intx prefetch_copy_interval_in_bytes() { | |
| 121 intx interval = PrefetchCopyIntervalInBytes; | |
| 122 return interval >= 0 ? interval : (has_v9() ? 512 : 0); | |
| 123 } | |
| 124 static intx prefetch_scan_interval_in_bytes() { | |
| 125 intx interval = PrefetchScanIntervalInBytes; | |
| 126 return interval >= 0 ? interval : (has_v9() ? 512 : 0); | |
| 127 } | |
| 128 static intx prefetch_fields_ahead() { | |
| 129 intx count = PrefetchFieldsAhead; | |
| 130 return count >= 0 ? count : (is_ultra3() ? 1 : 0); | |
| 131 } | |
| 132 | |
| 133 static intx allocate_prefetch_distance() { | |
| 134 // This method should be called before allocate_prefetch_style(). | |
| 135 intx count = AllocatePrefetchDistance; | |
| 136 if (count < 0) { // default is not defined ? | |
| 137 count = 512; | |
| 138 } | |
| 139 return count; | |
| 140 } | |
| 141 static intx allocate_prefetch_style() { | |
| 142 assert(AllocatePrefetchStyle >= 0, "AllocatePrefetchStyle should be positive"); | |
| 143 // Return 0 if AllocatePrefetchDistance was not defined. | |
| 144 return AllocatePrefetchDistance > 0 ? AllocatePrefetchStyle : 0; | |
| 145 } | |
| 146 | |
| 147 // Legacy | |
| 148 static bool v8_instructions_work() { return has_v8() && !has_v9(); } | |
| 149 static bool v9_instructions_work() { return has_v9(); } | |
| 150 | |
| 151 // Assembler testing | |
| 152 static void allow_all(); | |
| 153 static void revert(); | |
| 154 | |
| 155 // Override the Abstract_VM_Version implementation. | |
| 156 static uint page_size_count() { return is_sun4v() ? 4 : 2; } | |
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157 |
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158 // Calculates the number of parallel threads |
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159 static unsigned int calc_parallel_worker_threads(); |
| 0 | 160 }; |
| 1972 | 161 |
| 162 #endif // CPU_SPARC_VM_VM_VERSION_SPARC_HPP |