author | kvn |
Fri, 15 Aug 2014 12:27:50 -0700 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "memory/allocation.hpp" |
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#include "memory/allocation.inline.hpp" |
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#include "runtime/os.hpp" |
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#include "vm_version_sparc.hpp" |
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# include <sys/auxv.h> |
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# include <sys/auxv_SPARC.h> |
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# include <sys/systeminfo.h> |
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# include <kstat.h> |
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// We need to keep these here as long as we have to build on Solaris |
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// versions before 10. |
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#ifndef SI_ARCHITECTURE_32 |
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#define SI_ARCHITECTURE_32 516 /* basic 32-bit SI_ARCHITECTURE */ |
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#endif |
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#ifndef SI_ARCHITECTURE_64 |
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#define SI_ARCHITECTURE_64 517 /* basic 64-bit SI_ARCHITECTURE */ |
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#endif |
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static void do_sysinfo(int si, const char* string, int* features, int mask) { |
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char tmp; |
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size_t bufsize = sysinfo(si, &tmp, 1); |
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// All SI defines used below must be supported. |
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guarantee(bufsize != -1, "must be supported"); |
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char* buf = (char*) os::malloc(bufsize, mtInternal); |
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if (buf == NULL) |
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return; |
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if (sysinfo(si, buf, bufsize) == bufsize) { |
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// Compare the string. |
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if (strcmp(buf, string) == 0) { |
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*features |= mask; |
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} |
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} |
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os::free(buf); |
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} |
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int VM_Version::platform_features(int features) { |
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assert(os::Solaris::supports_getisax(), "getisax() must be available"); |
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// Check 32-bit architecture. |
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do_sysinfo(SI_ARCHITECTURE_32, "sparc", &features, v8_instructions_m); |
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// Check 64-bit architecture. |
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do_sysinfo(SI_ARCHITECTURE_64, "sparcv9", &features, generic_v9_m); |
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// Extract valid instruction set extensions. |
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uint_t avs[2]; |
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uint_t avn = os::Solaris::getisax(avs, 2); |
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assert(avn <= 2, "should return two or less av's"); |
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uint_t av = avs[0]; |
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#ifndef PRODUCT |
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if (PrintMiscellaneous && Verbose) { |
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tty->print("getisax(2) returned: " PTR32_FORMAT, av); |
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if (avn > 1) { |
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tty->print(", " PTR32_FORMAT, avs[1]); |
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} |
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tty->cr(); |
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} |
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#endif |
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if (av & AV_SPARC_MUL32) features |= hardware_mul32_m; |
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if (av & AV_SPARC_DIV32) features |= hardware_div32_m; |
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if (av & AV_SPARC_FSMULD) features |= hardware_fsmuld_m; |
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if (av & AV_SPARC_V8PLUS) features |= v9_instructions_m; |
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if (av & AV_SPARC_POPC) features |= hardware_popc_m; |
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if (av & AV_SPARC_VIS) features |= vis1_instructions_m; |
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if (av & AV_SPARC_VIS2) features |= vis2_instructions_m; |
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if (avn > 1) { |
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uint_t av2 = avs[1]; |
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#ifndef AV2_SPARC_SPARC5 |
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#define AV2_SPARC_SPARC5 0x00000008 /* The 29 new fp and sub instructions */ |
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#endif |
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if (av2 & AV2_SPARC_SPARC5) features |= sparc5_instructions_m; |
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} |
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// We only build on Solaris 10 and up, but some of the values below |
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// are not defined on all versions of Solaris 10, so we define them, |
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// if necessary. |
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#ifndef AV_SPARC_ASI_BLK_INIT |
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#define AV_SPARC_ASI_BLK_INIT 0x0080 /* ASI_BLK_INIT_xxx ASI */ |
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#endif |
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if (av & AV_SPARC_ASI_BLK_INIT) features |= blk_init_instructions_m; |
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#ifndef AV_SPARC_FMAF |
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#define AV_SPARC_FMAF 0x0100 /* Fused Multiply-Add */ |
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#endif |
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if (av & AV_SPARC_FMAF) features |= fmaf_instructions_m; |
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#ifndef AV_SPARC_FMAU |
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#define AV_SPARC_FMAU 0x0200 /* Unfused Multiply-Add */ |
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#endif |
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if (av & AV_SPARC_FMAU) features |= fmau_instructions_m; |
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#ifndef AV_SPARC_VIS3 |
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#define AV_SPARC_VIS3 0x0400 /* VIS3 instruction set extensions */ |
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#endif |
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if (av & AV_SPARC_VIS3) features |= vis3_instructions_m; |
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#ifndef AV_SPARC_CBCOND |
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#define AV_SPARC_CBCOND 0x10000000 /* compare and branch instrs supported */ |
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#endif |
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if (av & AV_SPARC_CBCOND) features |= cbcond_instructions_m; |
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#ifndef AV_SPARC_AES |
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#define AV_SPARC_AES 0x00020000 /* aes instrs supported */ |
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#endif |
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if (av & AV_SPARC_AES) features |= aes_instructions_m; |
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#ifndef AV_SPARC_SHA1 |
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#define AV_SPARC_SHA1 0x00400000 /* sha1 instruction supported */ |
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#endif |
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if (av & AV_SPARC_SHA1) features |= sha1_instruction_m; |
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#ifndef AV_SPARC_SHA256 |
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#define AV_SPARC_SHA256 0x00800000 /* sha256 instruction supported */ |
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#endif |
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if (av & AV_SPARC_SHA256) features |= sha256_instruction_m; |
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#ifndef AV_SPARC_SHA512 |
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#define AV_SPARC_SHA512 0x01000000 /* sha512 instruction supported */ |
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#endif |
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if (av & AV_SPARC_SHA512) features |= sha512_instruction_m; |
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// Determine the machine type. |
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do_sysinfo(SI_MACHINE, "sun4v", &features, sun4v_m); |
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7704 | 159 |
{ |
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// Using kstat to determine the machine type. |
|
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kstat_ctl_t* kc = kstat_open(); |
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kstat_t* ksp = kstat_lookup(kc, (char*)"cpu_info", -1, NULL); |
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const char* implementation = "UNKNOWN"; |
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if (ksp != NULL) { |
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if (kstat_read(kc, ksp, NULL) != -1 && ksp->ks_data != NULL) { |
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kstat_named_t* knm = (kstat_named_t *)ksp->ks_data; |
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for (int i = 0; i < ksp->ks_ndata; i++) { |
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if (strcmp((const char*)&(knm[i].name),"implementation") == 0) { |
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implementation = KSTAT_NAMED_STR_PTR(&knm[i]); |
7704 | 170 |
#ifndef PRODUCT |
171 |
if (PrintMiscellaneous && Verbose) { |
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tty->print_cr("cpu_info.implementation: %s", implementation); |
|
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} |
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#endif |
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// Convert to UPPER case before compare. |
25949 | 176 |
char* impl = os::strdup_check_oom(implementation); |
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177 |
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for (int i = 0; impl[i] != 0; i++) |
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impl[i] = (char)toupper((uint)impl[i]); |
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if (strstr(impl, "SPARC64") != NULL) { |
7704 | 182 |
features |= sparc64_family_m; |
13394 | 183 |
} else if (strstr(impl, "SPARC-M") != NULL) { |
184 |
// M-series SPARC is based on T-series. |
|
185 |
features |= (M_family_m | T_family_m); |
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} else if (strstr(impl, "SPARC-T") != NULL) { |
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features |= T_family_m; |
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if (strstr(impl, "SPARC-T1") != NULL) { |
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features |= T1_model_m; |
190 |
} |
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191 |
} else { |
13394 | 192 |
if (strstr(impl, "SPARC") == NULL) { |
193 |
#ifndef PRODUCT |
|
194 |
// kstat on Solaris 8 virtual machines (branded zones) |
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// returns "(unsupported)" implementation. Solaris 8 is not |
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// supported anymore, but include this check to be on the |
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// safe side. |
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warning("kstat cpu_info implementation = '%s', assume generic SPARC", impl); |
13394 | 199 |
#endif |
200 |
implementation = "SPARC"; |
|
201 |
} |
|
7704 | 202 |
} |
25949 | 203 |
os::free((void*)impl); |
7704 | 204 |
break; |
205 |
} |
|
206 |
} // for( |
|
207 |
} |
|
208 |
} |
|
209 |
assert(strcmp(implementation, "UNKNOWN") != 0, |
|
210 |
"unknown cpu info (changed kstat interface?)"); |
|
211 |
kstat_close(kc); |
|
212 |
} |
|
213 |
||
1 | 214 |
return features; |
215 |
} |