Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/vm_version_sparc.cpp @ 238:3df2fe7c4451
Merge
author | trims |
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date | Fri, 25 Jul 2008 11:29:03 -0700 |
parents | d1605aabd0a1 |
children | 6af0a709d52b |
rev | line source |
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0 | 1 /* |
196 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_vm_version_sparc.cpp.incl" | |
27 | |
28 int VM_Version::_features = VM_Version::unknown_m; | |
29 const char* VM_Version::_features_str = ""; | |
30 | |
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31 bool VM_Version::is_niagara1_plus() { |
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32 // This is a placeholder until the real test is determined. |
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33 return is_niagara1() && |
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34 (os::processor_count() > maximum_niagara1_processor_count()); |
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35 } |
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36 |
0 | 37 void VM_Version::initialize() { |
38 _features = determine_features(); | |
39 PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes(); | |
40 PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes(); | |
41 PrefetchFieldsAhead = prefetch_fields_ahead(); | |
42 | |
43 // Allocation prefetch settings | |
44 intx cache_line_size = L1_data_cache_line_size(); | |
45 if( cache_line_size > AllocatePrefetchStepSize ) | |
46 AllocatePrefetchStepSize = cache_line_size; | |
47 if( FLAG_IS_DEFAULT(AllocatePrefetchLines) ) | |
48 AllocatePrefetchLines = 3; // Optimistic value | |
49 assert( AllocatePrefetchLines > 0, "invalid value"); | |
50 if( AllocatePrefetchLines < 1 ) // set valid value in product VM | |
51 AllocatePrefetchLines = 1; // Conservative value | |
52 | |
53 AllocatePrefetchDistance = allocate_prefetch_distance(); | |
54 AllocatePrefetchStyle = allocate_prefetch_style(); | |
55 | |
56 assert(AllocatePrefetchDistance % AllocatePrefetchStepSize == 0, "invalid value"); | |
57 | |
58 UseSSE = 0; // Only on x86 and x64 | |
59 | |
60 _supports_cx8 = has_v9(); | |
61 | |
62 if (is_niagara1()) { | |
63 // Indirect branch is the same cost as direct | |
64 if (FLAG_IS_DEFAULT(UseInlineCaches)) { | |
65 UseInlineCaches = false; | |
66 } | |
113
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67 #ifdef _LP64 |
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68 // Single issue niagara1 is slower for CompressedOops |
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69 // but niagaras after that it's fine. |
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70 if (!is_niagara1_plus()) { |
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71 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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72 FLAG_SET_ERGO(bool, UseCompressedOops, false); |
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73 } |
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74 } |
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75 #endif // _LP64 |
0 | 76 #ifdef COMPILER2 |
77 // Indirect branch is the same cost as direct | |
78 if (FLAG_IS_DEFAULT(UseJumpTables)) { | |
79 UseJumpTables = true; | |
80 } | |
81 // Single-issue, so entry and loop tops are | |
82 // aligned on a single instruction boundary | |
83 if (FLAG_IS_DEFAULT(InteriorEntryAlignment)) { | |
84 InteriorEntryAlignment = 4; | |
85 } | |
86 if (FLAG_IS_DEFAULT(OptoLoopAlignment)) { | |
87 OptoLoopAlignment = 4; | |
88 } | |
89 #endif | |
90 } | |
91 | |
92 char buf[512]; | |
93 jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s", | |
94 (has_v8() ? ", has_v8" : ""), | |
95 (has_v9() ? ", has_v9" : ""), | |
96 (has_vis1() ? ", has_vis1" : ""), | |
97 (has_vis2() ? ", has_vis2" : ""), | |
98 (is_ultra3() ? ", is_ultra3" : ""), | |
99 (is_sun4v() ? ", is_sun4v" : ""), | |
100 (is_niagara1() ? ", is_niagara1" : ""), | |
101 (!has_hardware_int_muldiv() ? ", no-muldiv" : ""), | |
102 (!has_hardware_fsmuld() ? ", no-fsmuld" : "")); | |
103 | |
104 // buf is started with ", " or is empty | |
105 _features_str = strdup(strlen(buf) > 2 ? buf + 2 : buf); | |
106 | |
107 #ifndef PRODUCT | |
108 if (PrintMiscellaneous && Verbose) { | |
109 tty->print("Allocation: "); | |
110 if (AllocatePrefetchStyle <= 0) { | |
111 tty->print_cr("no prefetching"); | |
112 } else { | |
113 if (AllocatePrefetchLines > 1) { | |
114 tty->print_cr("PREFETCH %d, %d lines of size %d bytes", AllocatePrefetchDistance, AllocatePrefetchLines, AllocatePrefetchStepSize); | |
115 } else { | |
116 tty->print_cr("PREFETCH %d, one line", AllocatePrefetchDistance); | |
117 } | |
118 } | |
119 if (PrefetchCopyIntervalInBytes > 0) { | |
120 tty->print_cr("PrefetchCopyIntervalInBytes %d", PrefetchCopyIntervalInBytes); | |
121 } | |
122 if (PrefetchScanIntervalInBytes > 0) { | |
123 tty->print_cr("PrefetchScanIntervalInBytes %d", PrefetchScanIntervalInBytes); | |
124 } | |
125 if (PrefetchFieldsAhead > 0) { | |
126 tty->print_cr("PrefetchFieldsAhead %d", PrefetchFieldsAhead); | |
127 } | |
128 } | |
129 #endif // PRODUCT | |
130 } | |
131 | |
132 void VM_Version::print_features() { | |
133 tty->print_cr("Version:%s", cpu_features()); | |
134 } | |
135 | |
136 int VM_Version::determine_features() { | |
137 if (UseV8InstrsOnly) { | |
138 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-V8");) | |
139 return generic_v8_m; | |
140 } | |
141 | |
142 int features = platform_features(unknown_m); // platform_features() is os_arch specific | |
143 | |
144 if (features == unknown_m) { | |
145 features = generic_v9_m; | |
146 warning("Cannot recognize SPARC version. Default to V9"); | |
147 } | |
148 | |
149 if (UseNiagaraInstrs) { | |
150 if (is_niagara1(features)) { | |
151 // Happy to accomodate... | |
152 } else { | |
153 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-Niagara");) | |
154 features = niagara1_m; | |
155 } | |
156 } else { | |
157 if (is_niagara1(features) && !FLAG_IS_DEFAULT(UseNiagaraInstrs)) { | |
158 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-Not-Niagara");) | |
159 features &= ~niagara1_unique_m; | |
160 } else { | |
161 // Happy to accomodate... | |
162 } | |
163 } | |
164 | |
165 return features; | |
166 } | |
167 | |
168 static int saved_features = 0; | |
169 | |
170 void VM_Version::allow_all() { | |
171 saved_features = _features; | |
172 _features = all_features_m; | |
173 } | |
174 | |
175 void VM_Version::revert() { | |
176 _features = saved_features; | |
177 } | |
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178 |
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179 unsigned int VM_Version::calc_parallel_worker_threads() { |
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180 unsigned int result; |
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181 if (is_niagara1_plus()) { |
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182 result = nof_parallel_worker_threads(5, 16, 8); |
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183 } else { |
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184 result = nof_parallel_worker_threads(5, 8, 8); |
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185 } |
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186 return result; |
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187 } |