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annotate src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp @ 20313:b20a35eae442
8035968: Leverage CPU Instructions to Improve SHA Performance on SPARC
Summary: Add C2 SHA intrinsics on SPARC
Reviewed-by: kvn, roland
Contributed-by: james.cheng@oracle.com
author | kvn |
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date | Wed, 11 Jun 2014 11:05:10 -0700 |
parents | 031b06eac1a9 |
children | d635fd1ac81c |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2006, 2014, 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 #include "precompiled.hpp" |
26 #include "runtime/os.hpp" | |
27 #include "vm_version_sparc.hpp" | |
0 | 28 |
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29 # include <sys/auxv.h> |
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30 # include <sys/auxv_SPARC.h> |
0 | 31 # include <sys/systeminfo.h> |
2080 | 32 # include <kstat.h> |
0 | 33 |
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34 // We need to keep these here as long as we have to build on Solaris |
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35 // versions before 10. |
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36 #ifndef SI_ARCHITECTURE_32 |
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37 #define SI_ARCHITECTURE_32 516 /* basic 32-bit SI_ARCHITECTURE */ |
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38 #endif |
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39 |
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40 #ifndef SI_ARCHITECTURE_64 |
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41 #define SI_ARCHITECTURE_64 517 /* basic 64-bit SI_ARCHITECTURE */ |
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42 #endif |
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43 |
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44 static void do_sysinfo(int si, const char* string, int* features, int mask) { |
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45 char tmp; |
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46 size_t bufsize = sysinfo(si, &tmp, 1); |
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47 |
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48 // All SI defines used below must be supported. |
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49 guarantee(bufsize != -1, "must be supported"); |
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50 |
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51 char* buf = (char*) malloc(bufsize); |
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52 |
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53 if (buf == NULL) |
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54 return; |
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55 |
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56 if (sysinfo(si, buf, bufsize) == bufsize) { |
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57 // Compare the string. |
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58 if (strcmp(buf, string) == 0) { |
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59 *features |= mask; |
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60 } |
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61 } |
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62 |
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63 free(buf); |
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64 } |
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65 |
0 | 66 int VM_Version::platform_features(int features) { |
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67 // getisax(2), SI_ARCHITECTURE_32, and SI_ARCHITECTURE_64 are |
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68 // supported on Solaris 10 and later. |
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69 if (os::Solaris::supports_getisax()) { |
0 | 70 |
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71 // Check 32-bit architecture. |
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72 do_sysinfo(SI_ARCHITECTURE_32, "sparc", &features, v8_instructions_m); |
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73 |
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74 // Check 64-bit architecture. |
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75 do_sysinfo(SI_ARCHITECTURE_64, "sparcv9", &features, generic_v9_m); |
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76 |
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77 // Extract valid instruction set extensions. |
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78 uint_t avs[2]; |
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79 uint_t avn = os::Solaris::getisax(avs, 2); |
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80 assert(avn <= 2, "should return two or less av's"); |
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81 uint_t av = avs[0]; |
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83 #ifndef PRODUCT |
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84 if (PrintMiscellaneous && Verbose) { |
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85 tty->print("getisax(2) returned: " PTR32_FORMAT, av); |
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86 if (avn > 1) { |
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87 tty->print(", " PTR32_FORMAT, avs[1]); |
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88 } |
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89 tty->cr(); |
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90 } |
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91 #endif |
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92 |
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93 if (av & AV_SPARC_MUL32) features |= hardware_mul32_m; |
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94 if (av & AV_SPARC_DIV32) features |= hardware_div32_m; |
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95 if (av & AV_SPARC_FSMULD) features |= hardware_fsmuld_m; |
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96 if (av & AV_SPARC_V8PLUS) features |= v9_instructions_m; |
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97 if (av & AV_SPARC_POPC) features |= hardware_popc_m; |
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98 if (av & AV_SPARC_VIS) features |= vis1_instructions_m; |
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99 if (av & AV_SPARC_VIS2) features |= vis2_instructions_m; |
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100 if (avn > 1) { |
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101 uint_t av2 = avs[1]; |
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102 #ifndef AV2_SPARC_SPARC5 |
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103 #define AV2_SPARC_SPARC5 0x00000008 /* The 29 new fp and sub instructions */ |
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104 #endif |
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105 if (av2 & AV2_SPARC_SPARC5) features |= sparc5_instructions_m; |
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106 } |
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107 |
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108 // Next values are not defined before Solaris 10 |
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109 // but Solaris 8 is used for jdk6 update builds. |
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110 #ifndef AV_SPARC_ASI_BLK_INIT |
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111 #define AV_SPARC_ASI_BLK_INIT 0x0080 /* ASI_BLK_INIT_xxx ASI */ |
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112 #endif |
2080 | 113 if (av & AV_SPARC_ASI_BLK_INIT) features |= blk_init_instructions_m; |
114 | |
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115 #ifndef AV_SPARC_FMAF |
2080 | 116 #define AV_SPARC_FMAF 0x0100 /* Fused Multiply-Add */ |
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117 #endif |
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118 if (av & AV_SPARC_FMAF) features |= fmaf_instructions_m; |
2080 | 119 |
120 #ifndef AV_SPARC_FMAU | |
121 #define AV_SPARC_FMAU 0x0200 /* Unfused Multiply-Add */ | |
122 #endif | |
123 if (av & AV_SPARC_FMAU) features |= fmau_instructions_m; | |
124 | |
125 #ifndef AV_SPARC_VIS3 | |
126 #define AV_SPARC_VIS3 0x0400 /* VIS3 instruction set extensions */ | |
127 #endif | |
128 if (av & AV_SPARC_VIS3) features |= vis3_instructions_m; | |
129 | |
3839 | 130 #ifndef AV_SPARC_CBCOND |
131 #define AV_SPARC_CBCOND 0x10000000 /* compare and branch instrs supported */ | |
132 #endif | |
133 if (av & AV_SPARC_CBCOND) features |= cbcond_instructions_m; | |
134 | |
17670 | 135 #ifndef AV_SPARC_AES |
136 #define AV_SPARC_AES 0x00020000 /* aes instrs supported */ | |
137 #endif | |
138 if (av & AV_SPARC_AES) features |= aes_instructions_m; | |
139 | |
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140 #ifndef AV_SPARC_SHA1 |
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141 #define AV_SPARC_SHA1 0x00400000 /* sha1 instruction supported */ |
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142 #endif |
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143 if (av & AV_SPARC_SHA1) features |= sha1_instruction_m; |
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144 |
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145 #ifndef AV_SPARC_SHA256 |
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146 #define AV_SPARC_SHA256 0x00800000 /* sha256 instruction supported */ |
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147 #endif |
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148 if (av & AV_SPARC_SHA256) features |= sha256_instruction_m; |
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149 |
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150 #ifndef AV_SPARC_SHA512 |
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151 #define AV_SPARC_SHA512 0x01000000 /* sha512 instruction supported */ |
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152 #endif |
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153 if (av & AV_SPARC_SHA512) features |= sha512_instruction_m; |
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154 |
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155 } else { |
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156 // getisax(2) failed, use the old legacy code. |
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157 #ifndef PRODUCT |
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158 if (PrintMiscellaneous && Verbose) |
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159 tty->print_cr("getisax(2) is not supported."); |
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160 #endif |
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161 |
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162 char tmp; |
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163 size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1); |
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164 char* buf = (char*) malloc(bufsize); |
0 | 165 |
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166 if (buf != NULL) { |
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167 if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) { |
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168 // Figure out what kind of sparc we have |
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169 char *sparc_string = strstr(buf, "sparc"); |
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170 if (sparc_string != NULL) { features |= v8_instructions_m; |
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171 if (sparc_string[5] == 'v') { |
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172 if (sparc_string[6] == '8') { |
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173 if (sparc_string[7] == '-') { features |= hardware_mul32_m; |
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174 features |= hardware_div32_m; |
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175 } else if (sparc_string[7] == 'p') features |= generic_v9_m; |
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176 else features |= generic_v8_m; |
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177 } else if (sparc_string[6] == '9') features |= generic_v9_m; |
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178 } |
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179 } |
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180 |
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181 // Check for visualization instructions |
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182 char *vis = strstr(buf, "vis"); |
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183 if (vis != NULL) { features |= vis1_instructions_m; |
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184 if (vis[3] == '2') features |= vis2_instructions_m; |
0 | 185 } |
186 } | |
641
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187 free(buf); |
0 | 188 } |
189 } | |
190 | |
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191 // Determine the machine type. |
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192 do_sysinfo(SI_MACHINE, "sun4v", &features, sun4v_m); |
0 | 193 |
2080 | 194 { |
195 // Using kstat to determine the machine type. | |
196 kstat_ctl_t* kc = kstat_open(); | |
197 kstat_t* ksp = kstat_lookup(kc, (char*)"cpu_info", -1, NULL); | |
198 const char* implementation = "UNKNOWN"; | |
199 if (ksp != NULL) { | |
200 if (kstat_read(kc, ksp, NULL) != -1 && ksp->ks_data != NULL) { | |
201 kstat_named_t* knm = (kstat_named_t *)ksp->ks_data; | |
202 for (int i = 0; i < ksp->ks_ndata; i++) { | |
203 if (strcmp((const char*)&(knm[i].name),"implementation") == 0) { | |
204 #ifndef KSTAT_DATA_STRING | |
205 #define KSTAT_DATA_STRING 9 | |
206 #endif | |
207 if (knm[i].data_type == KSTAT_DATA_CHAR) { | |
208 // VM is running on Solaris 8 which does not have value.str. | |
209 implementation = &(knm[i].value.c[0]); | |
210 } else if (knm[i].data_type == KSTAT_DATA_STRING) { | |
211 // VM is running on Solaris 10. | |
212 #ifndef KSTAT_NAMED_STR_PTR | |
213 // Solaris 8 was used to build VM, define the structure it misses. | |
214 struct str_t { | |
215 union { | |
216 char *ptr; /* NULL-term string */ | |
217 char __pad[8]; /* 64-bit padding */ | |
218 } addr; | |
219 uint32_t len; /* # bytes for strlen + '\0' */ | |
220 }; | |
221 #define KSTAT_NAMED_STR_PTR(knptr) (( (str_t*)&((knptr)->value) )->addr.ptr) | |
222 #endif | |
223 implementation = KSTAT_NAMED_STR_PTR(&knm[i]); | |
224 } | |
225 #ifndef PRODUCT | |
226 if (PrintMiscellaneous && Verbose) { | |
227 tty->print_cr("cpu_info.implementation: %s", implementation); | |
228 } | |
229 #endif | |
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230 // Convert to UPPER case before compare. |
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231 char* impl = strdup(implementation); |
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232 |
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233 for (int i = 0; impl[i] != 0; i++) |
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234 impl[i] = (char)toupper((uint)impl[i]); |
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235 if (strstr(impl, "SPARC64") != NULL) { |
2080 | 236 features |= sparc64_family_m; |
6269 | 237 } else if (strstr(impl, "SPARC-M") != NULL) { |
238 // M-series SPARC is based on T-series. | |
239 features |= (M_family_m | T_family_m); | |
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240 } else if (strstr(impl, "SPARC-T") != NULL) { |
2080 | 241 features |= T_family_m; |
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242 if (strstr(impl, "SPARC-T1") != NULL) { |
2080 | 243 features |= T1_model_m; |
244 } | |
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245 } else { |
6269 | 246 if (strstr(impl, "SPARC") == NULL) { |
247 #ifndef PRODUCT | |
248 // kstat on Solaris 8 virtual machines (branded zones) | |
249 // returns "(unsupported)" implementation. | |
250 warning("kstat cpu_info implementation = '%s', should contain SPARC", impl); | |
251 #endif | |
252 implementation = "SPARC"; | |
253 } | |
2080 | 254 } |
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255 free((void*)impl); |
2080 | 256 break; |
257 } | |
258 } // for( | |
259 } | |
260 } | |
261 assert(strcmp(implementation, "UNKNOWN") != 0, | |
262 "unknown cpu info (changed kstat interface?)"); | |
263 kstat_close(kc); | |
264 } | |
265 | |
0 | 266 return features; |
267 } |