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/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2016 SAP SE. 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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#include "precompiled.hpp"
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#include "asm/assembler.inline.hpp"
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#include "compiler/disassembler.hpp"
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#include "code/compiledIC.hpp"
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#include "memory/resourceArea.hpp"
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#include "runtime/java.hpp"
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#include "runtime/stubCodeGenerator.hpp"
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#include "vm_version_s390.hpp"
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# include <sys/sysinfo.h>
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bool VM_Version::_is_determine_features_test_running = false;
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unsigned long VM_Version::_features[_features_buffer_len] = {0, 0, 0, 0};
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unsigned long VM_Version::_cipher_features[_features_buffer_len] = {0, 0, 0, 0};
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unsigned long VM_Version::_msgdigest_features[_features_buffer_len] = {0, 0, 0, 0};
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unsigned int VM_Version::_nfeatures = 0;
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unsigned int VM_Version::_ncipher_features = 0;
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unsigned int VM_Version::_nmsgdigest_features = 0;
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unsigned int VM_Version::_Dcache_lineSize = 256;
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unsigned int VM_Version::_Icache_lineSize = 256;
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static const char* z_gen[] = {" ", "G1", "G2", "G3", "G4", "G5", "G6", "G7" };
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static const char* z_machine[] = {" ", "2064", "2084", "2094", "2097", "2817", " ", "2964" };
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static const char* z_name[] = {" ", "z900", "z990", "z9 EC", "z10 EC", "z196 EC", "ec12", "z13" };
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void VM_Version::initialize() {
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determine_features(); // Get processor capabilities.
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set_features_string(); // Set a descriptive feature indication.
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if (Verbose) {
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print_features();
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}
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intx cache_line_size = Dcache_lineSize(0);
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MaxVectorSize = 8;
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if (has_PrefetchRaw()) {
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if (FLAG_IS_DEFAULT(AllocatePrefetchStyle)) { // not preset
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// 0 = no prefetch.
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// 1 = Prefetch instructions for each allocation.
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// 2 = Use TLAB watermark to gate allocation prefetch.
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AllocatePrefetchStyle = 1;
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}
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if (AllocatePrefetchStyle > 0) { // Prefetching turned on at all?
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// Distance to prefetch ahead of allocation pointer.
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if (FLAG_IS_DEFAULT(AllocatePrefetchDistance) || (AllocatePrefetchDistance < 0)) { // not preset
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AllocatePrefetchDistance = 0;
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}
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// Number of lines to prefetch ahead of allocation pointer.
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if (FLAG_IS_DEFAULT(AllocatePrefetchLines) || (AllocatePrefetchLines <= 0)) { // not preset
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AllocatePrefetchLines = 3;
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}
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// Step size in bytes of sequential prefetch instructions.
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if (FLAG_IS_DEFAULT(AllocatePrefetchStepSize) || (AllocatePrefetchStepSize <= 0)) { // not preset
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FLAG_SET_DEFAULT(AllocatePrefetchStepSize, cache_line_size);
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} else if (AllocatePrefetchStepSize < cache_line_size) {
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FLAG_SET_DEFAULT(AllocatePrefetchStepSize, cache_line_size);
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} else {
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FLAG_SET_DEFAULT(AllocatePrefetchStepSize, cache_line_size);
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}
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} else {
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FLAG_SET_DEFAULT(AllocatePrefetchStyle, 0);
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AllocatePrefetchDistance = 0;
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AllocatePrefetchLines = 0;
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// Can't be zero. Will SIGFPE during constraints checking.
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FLAG_SET_DEFAULT(AllocatePrefetchStepSize, cache_line_size);
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}
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} else {
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FLAG_SET_DEFAULT(AllocatePrefetchStyle, 0);
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AllocatePrefetchDistance = 0;
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AllocatePrefetchLines = 0;
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// Can't be zero. Will SIGFPE during constraints checking.
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FLAG_SET_DEFAULT(AllocatePrefetchStepSize, cache_line_size);
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}
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// TODO:
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// On z/Architecture, cache line size is significantly large (256 bytes). Do we really need
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// to keep contended members that far apart? Performance tests are required.
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if (FLAG_IS_DEFAULT(ContendedPaddingWidth) && (cache_line_size > ContendedPaddingWidth)) {
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ContendedPaddingWidth = cache_line_size;
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}
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// On z/Architecture, the CRC32 intrinsics had to be implemented "by hand".
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// They cannot be based on the CHECKSUM instruction which has been there
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// since the very beginning (of z/Architecture). It computes "some kind of" a checksum
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// which has nothing to do with the CRC32 algorithm.
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if (FLAG_IS_DEFAULT(UseCRC32Intrinsics)) {
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FLAG_SET_DEFAULT(UseCRC32Intrinsics, true);
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}
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// On z/Architecture, we take UseAES as the general switch to enable/disable the AES intrinsics.
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// The specific, and yet to be defined, switches UseAESxxxIntrinsics will then be set
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// depending on the actual machine capabilities.
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// Explicitly setting them via CmdLine option takes precedence, of course.
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// TODO: UseAESIntrinsics must be made keylength specific.
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// As of March 2015 and Java8, only AES128 is supported by the Java Cryptographic Extensions.
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// Therefore, UseAESIntrinsics is of minimal use at the moment.
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if (FLAG_IS_DEFAULT(UseAES) && has_Crypto_AES()) {
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FLAG_SET_DEFAULT(UseAES, true);
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}
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if (UseAES && !has_Crypto_AES()) {
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warning("AES instructions are not available on this CPU");
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FLAG_SET_DEFAULT(UseAES, false);
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}
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if (UseAES) {
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if (FLAG_IS_DEFAULT(UseAESIntrinsics)) {
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FLAG_SET_DEFAULT(UseAESIntrinsics, true);
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}
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}
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if (UseAESIntrinsics && !has_Crypto_AES()) {
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warning("AES intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseAESIntrinsics, false);
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}
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// TODO: implement AES/CTR intrinsics
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if (UseAESCTRIntrinsics) {
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warning("AES/CTR intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseAESCTRIntrinsics, false);
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}
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// TODO: implement GHASH intrinsics
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if (UseGHASHIntrinsics) {
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warning("GHASH intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseGHASHIntrinsics, false);
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}
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if (UseFMA) {
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warning("FMA instructions are not available on this CPU");
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FLAG_SET_DEFAULT(UseFMA, false);
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}
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// On z/Architecture, we take UseSHA as the general switch to enable/disable the SHA intrinsics.
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// The specific switches UseSHAxxxIntrinsics will then be set depending on the actual
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// machine capabilities.
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// Explicitly setting them via CmdLine option takes precedence, of course.
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if (FLAG_IS_DEFAULT(UseSHA) && has_Crypto_SHA()) {
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FLAG_SET_DEFAULT(UseSHA, true);
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}
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if (UseSHA && !has_Crypto_SHA()) {
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warning("SHA instructions are not available on this CPU");
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FLAG_SET_DEFAULT(UseSHA, false);
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}
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if (UseSHA && has_Crypto_SHA1()) {
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if (FLAG_IS_DEFAULT(UseSHA1Intrinsics)) {
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FLAG_SET_DEFAULT(UseSHA1Intrinsics, true);
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}
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} else if (UseSHA1Intrinsics) {
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warning("Intrinsics for SHA-1 crypto hash functions not available on this CPU.");
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FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
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}
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if (UseSHA && has_Crypto_SHA256()) {
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if (FLAG_IS_DEFAULT(UseSHA256Intrinsics)) {
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FLAG_SET_DEFAULT(UseSHA256Intrinsics, true);
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}
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} else if (UseSHA256Intrinsics) {
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warning("Intrinsics for SHA-224 and SHA-256 crypto hash functions not available on this CPU.");
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FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
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}
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if (UseSHA && has_Crypto_SHA512()) {
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if (FLAG_IS_DEFAULT(UseSHA512Intrinsics)) {
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FLAG_SET_DEFAULT(UseSHA512Intrinsics, true);
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}
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} else if (UseSHA512Intrinsics) {
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warning("Intrinsics for SHA-384 and SHA-512 crypto hash functions not available on this CPU.");
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FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
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}
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if (UseAdler32Intrinsics) {
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warning("Adler32Intrinsics not available on this CPU.");
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FLAG_SET_DEFAULT(UseAdler32Intrinsics, false);
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}
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if (FLAG_IS_DEFAULT(UseMultiplyToLenIntrinsic)) {
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FLAG_SET_DEFAULT(UseMultiplyToLenIntrinsic, true);
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}
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if (FLAG_IS_DEFAULT(UseMontgomeryMultiplyIntrinsic)) {
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FLAG_SET_DEFAULT(UseMontgomeryMultiplyIntrinsic, true);
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}
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if (FLAG_IS_DEFAULT(UseMontgomerySquareIntrinsic)) {
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FLAG_SET_DEFAULT(UseMontgomerySquareIntrinsic, true);
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}
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if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {
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FLAG_SET_DEFAULT(UsePopCountInstruction, true);
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}
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// z/Architecture supports 8-byte compare-exchange operations
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// (see Atomic::cmpxchg and StubGenerator::generate_atomic_cmpxchg_ptr)
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// and 'atomic long memory ops' (see Unsafe_GetLongVolatile).
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_supports_cx8 = true;
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_supports_atomic_getadd4 = VM_Version::has_LoadAndALUAtomicV1();
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_supports_atomic_getadd8 = VM_Version::has_LoadAndALUAtomicV1();
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// z/Architecture supports unaligned memory accesses.
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// Performance penalty is negligible. An additional tick or so
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// is lost if the accessed data spans a cache line boundary.
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// Unaligned accesses are not atomic, of course.
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if (FLAG_IS_DEFAULT(UseUnalignedAccesses)) {
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FLAG_SET_DEFAULT(UseUnalignedAccesses, true);
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}
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}
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void VM_Version::set_features_string() {
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unsigned int ambiguity = 0;
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if (is_z13()) {
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_features_string = "System z G7-z13 (LDISP_fast, ExtImm, PCrel Load/Store, CmpB, Cond Load/Store, Interlocked Update, TxM, VectorInstr)";
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ambiguity++;
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}
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if (is_ec12()) {
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_features_string = "System z G6-EC12 (LDISP_fast, ExtImm, PCrel Load/Store, CmpB, Cond Load/Store, Interlocked Update, TxM)";
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ambiguity++;
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}
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if (is_z196()) {
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_features_string = "System z G5-z196 (LDISP_fast, ExtImm, PCrel Load/Store, CmpB, Cond Load/Store, Interlocked Update)";
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ambiguity++;
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}
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if (is_z10()) {
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_features_string = "System z G4-z10 (LDISP_fast, ExtImm, PCrel Load/Store, CmpB)";
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ambiguity++;
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}
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if (is_z9()) {
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_features_string = "System z G3-z9 (LDISP_fast, ExtImm), out-of-support as of 2016-04-01";
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ambiguity++;
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}
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if (is_z990()) {
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_features_string = "System z G2-z990 (LDISP_fast), out-of-support as of 2014-07-01";
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ambiguity++;
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}
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if (is_z900()) {
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_features_string = "System z G1-z900 (LDISP), out-of-support as of 2014-07-01";
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ambiguity++;
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}
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if (ambiguity == 0) {
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_features_string = "z/Architecture (unknown generation)";
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} else if (ambiguity > 1) {
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tty->print_cr("*** WARNING *** Ambiguous z/Architecture detection, ambiguity = %d", ambiguity);
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tty->print_cr(" oldest detected generation is %s", _features_string);
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_features_string = "z/Architecture (ambiguous detection)";
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}
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}
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// featureBuffer - bit array indicating availability of various features
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// featureNum - bit index of feature to be tested
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// Featurenum < 0 requests test for any nonzero bit in featureBuffer.
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// bufLen - length of featureBuffer in bits
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bool VM_Version::test_feature_bit(unsigned long* featureBuffer, int featureNum, unsigned int bufLen) {
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assert(bufLen > 0, "buffer len must be positive");
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assert((bufLen & 0x0007) == 0, "unaligned buffer len");
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assert(((intptr_t)featureBuffer&0x0007) == 0, "unaligned feature buffer");
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if (featureNum < 0) {
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// Any bit set at all?
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bool anyBit = false;
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for (size_t i = 0; i < bufLen/(8*sizeof(long)); i++) {
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anyBit = anyBit || (featureBuffer[i] != 0);
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}
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return anyBit;
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} else {
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assert((unsigned int)featureNum < bufLen, "feature index out of range");
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unsigned char* byteBuffer = (unsigned char*)featureBuffer;
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int byteIndex = featureNum/(8*sizeof(char));
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int bitIndex = featureNum%(8*sizeof(char));
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// Indexed bit set?
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return (byteBuffer[byteIndex] & (1U<<(7-bitIndex))) != 0;
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}
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}
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void VM_Version::print_features_internal(const char* text, bool print_anyway) {
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tty->print_cr("%s %s", text, features_string());
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tty->print("%s", text);
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for (unsigned int i = 0; i < _nfeatures; i++) {
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tty->print(" 0x%16.16lx", _features[i]);
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}
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tty->cr();
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if (Verbose || print_anyway) {
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// z900
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if (has_long_displacement() ) tty->print_cr("available: %s", "LongDispFacility");
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// z990
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if (has_long_displacement_fast() ) tty->print_cr("available: %s", "LongDispFacilityHighPerf");
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if (has_ETF2() && has_ETF3() ) tty->print_cr("available: %s", "ETF2 and ETF3");
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if (has_Crypto() ) tty->print_cr("available: %s", "CryptoFacility");
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// z9
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if (has_extended_immediate() ) tty->print_cr("available: %s", "ExtImmedFacility");
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if (has_StoreFacilityListExtended()) tty->print_cr("available: %s", "StoreFacilityListExtended");
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if (has_StoreClockFast() ) tty->print_cr("available: %s", "StoreClockFast");
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if (has_ETF2Enhancements() ) tty->print_cr("available: %s", "ETF2 Enhancements");
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if (has_ETF3Enhancements() ) tty->print_cr("available: %s", "ETF3 Enhancements");
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if (has_HFPUnnormalized() ) tty->print_cr("available: %s", "HFPUnnormalizedFacility");
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if (has_HFPMultiplyAndAdd() ) tty->print_cr("available: %s", "HFPMultiplyAndAddFacility");
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// z10
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if (has_ParsingEnhancements() ) tty->print_cr("available: %s", "Parsing Enhancements");
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if (has_ExtractCPUtime() ) tty->print_cr("available: %s", "ExtractCPUTime");
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if (has_CompareSwapStore() ) tty->print_cr("available: %s", "CompareSwapStore");
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if (has_GnrlInstrExtensions() ) tty->print_cr("available: %s", "General Instruction Extensions");
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if (has_CompareBranch() ) tty->print_cr(" available: %s", "Compare and Branch");
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if (has_CompareTrap() ) tty->print_cr(" available: %s", "Compare and Trap");
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if (has_RelativeLoadStore() ) tty->print_cr(" available: %s", "Relative Load/Store");
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if (has_MultiplySingleImm32() ) tty->print_cr(" available: %s", "MultiplySingleImm32");
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if (has_Prefetch() ) tty->print_cr(" available: %s", "Prefetch");
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if (has_MoveImmToMem() ) tty->print_cr(" available: %s", "Direct Moves Immediate to Memory");
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if (has_MemWithImmALUOps() ) tty->print_cr(" available: %s", "Direct ALU Ops Memory .op. Immediate");
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if (has_ExtractCPUAttributes() ) tty->print_cr(" available: %s", "Extract CPU Atributes");
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if (has_ExecuteExtensions() ) tty->print_cr("available: %s", "ExecuteExtensions");
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if (has_FPSupportEnhancements() ) tty->print_cr("available: %s", "FPSupportEnhancements");
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if (has_DecimalFloatingPoint() ) tty->print_cr("available: %s", "DecimalFloatingPoint");
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// z196
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|
341 |
if (has_DistinctOpnds() ) tty->print_cr("available: %s", "Distinct Operands");
|
|
342 |
if (has_InterlockedAccessV1() ) tty->print_cr(" available: %s", "InterlockedAccess V1 (fast)");
|
|
343 |
if (has_PopCount() ) tty->print_cr(" available: %s", "PopCount");
|
|
344 |
if (has_LoadStoreConditional() ) tty->print_cr(" available: %s", "LoadStoreConditional");
|
|
345 |
if (has_HighWordInstr() ) tty->print_cr(" available: %s", "HighWord Instructions");
|
|
346 |
if (has_FastSync() ) tty->print_cr(" available: %s", "FastSync (bcr 14,0)");
|
|
347 |
if (has_AtomicMemWithImmALUOps() ) tty->print_cr("available: %s", "Atomic Direct ALU Ops Memory .op. Immediate");
|
|
348 |
if (has_FPExtensions() ) tty->print_cr("available: %s", "Floatingpoint Extensions");
|
|
349 |
if (has_CryptoExt3() ) tty->print_cr("available: %s", "Crypto Extensions 3");
|
|
350 |
if (has_CryptoExt4() ) tty->print_cr("available: %s", "Crypto Extensions 4");
|
|
351 |
// EC12
|
|
352 |
if (has_MiscInstrExt() ) tty->print_cr("available: %s", "Miscelaneous Instruction Extensions");
|
|
353 |
if (has_ExecutionHint() ) tty->print_cr(" available: %s", "Execution Hints (branch prediction)");
|
|
354 |
if (has_ProcessorAssist() ) tty->print_cr(" available: %s", "Processor Assists");
|
|
355 |
if (has_LoadAndTrap() ) tty->print_cr(" available: %s", "Load and Trap");
|
|
356 |
if (has_TxMem() ) tty->print_cr("available: %s", "Transactional Memory");
|
|
357 |
if (has_InterlockedAccessV2() ) tty->print_cr(" available: %s", "InterlockedAccess V2 (fast)");
|
|
358 |
if (has_DFPZonedConversion() ) tty->print_cr(" available: %s", "DFP Zoned Conversions");
|
|
359 |
// z13
|
|
360 |
if (has_LoadStoreConditional2() ) tty->print_cr("available: %s", "Load/Store Conditional 2");
|
|
361 |
if (has_CryptoExt5() ) tty->print_cr("available: %s", "Crypto Extensions 5");
|
|
362 |
if (has_DFPPackedConversion() ) tty->print_cr("available: %s", "DFP Packed Conversions");
|
|
363 |
if (has_VectorFacility() ) tty->print_cr("available: %s", "Vector Facility");
|
|
364 |
// test switches
|
|
365 |
if (has_TestFeature1Impl() ) tty->print_cr("available: %s", "TestFeature1Impl");
|
|
366 |
if (has_TestFeature2Impl() ) tty->print_cr("available: %s", "TestFeature2Impl");
|
|
367 |
if (has_TestFeature4Impl() ) tty->print_cr("available: %s", "TestFeature4Impl");
|
|
368 |
if (has_TestFeature8Impl() ) tty->print_cr("available: %s", "TestFeature8Impl");
|
|
369 |
|
|
370 |
if (has_Crypto()) {
|
|
371 |
tty->cr();
|
|
372 |
tty->print_cr("detailled availability of %s capabilities:", "CryptoFacility");
|
|
373 |
if (test_feature_bit(&_cipher_features[0], -1, 2*Cipher::_featureBits)) {
|
|
374 |
tty->cr();
|
|
375 |
tty->print_cr(" available: %s", "Message Cipher Functions");
|
|
376 |
}
|
|
377 |
if (test_feature_bit(&_cipher_features[0], -1, (int)Cipher::_featureBits)) {
|
|
378 |
tty->print_cr(" available Crypto Features of KM (Cipher Message):");
|
|
379 |
for (unsigned int i = 0; i < Cipher::_featureBits; i++) {
|
|
380 |
if (test_feature_bit(&_cipher_features[0], i, (int)Cipher::_featureBits)) {
|
|
381 |
switch (i) {
|
|
382 |
case Cipher::_Query: tty->print_cr(" available: KM Query"); break;
|
|
383 |
case Cipher::_DEA: tty->print_cr(" available: KM DEA"); break;
|
|
384 |
case Cipher::_TDEA128: tty->print_cr(" available: KM TDEA-128"); break;
|
|
385 |
case Cipher::_TDEA192: tty->print_cr(" available: KM TDEA-192"); break;
|
|
386 |
case Cipher::_EncryptedDEA: tty->print_cr(" available: KM Encrypted DEA"); break;
|
|
387 |
case Cipher::_EncryptedDEA128: tty->print_cr(" available: KM Encrypted DEA-128"); break;
|
|
388 |
case Cipher::_EncryptedDEA192: tty->print_cr(" available: KM Encrypted DEA-192"); break;
|
|
389 |
case Cipher::_AES128: tty->print_cr(" available: KM AES-128"); break;
|
|
390 |
case Cipher::_AES192: tty->print_cr(" available: KM AES-192"); break;
|
|
391 |
case Cipher::_AES256: tty->print_cr(" available: KM AES-256"); break;
|
|
392 |
case Cipher::_EnccryptedAES128: tty->print_cr(" available: KM Encrypted-AES-128"); break;
|
|
393 |
case Cipher::_EnccryptedAES192: tty->print_cr(" available: KM Encrypted-AES-192"); break;
|
|
394 |
case Cipher::_EnccryptedAES256: tty->print_cr(" available: KM Encrypted-AES-256"); break;
|
|
395 |
case Cipher::_XTSAES128: tty->print_cr(" available: KM XTS-AES-128"); break;
|
|
396 |
case Cipher::_XTSAES256: tty->print_cr(" available: KM XTS-AES-256"); break;
|
|
397 |
case Cipher::_EncryptedXTSAES128: tty->print_cr(" available: KM XTS-Encrypted-AES-128"); break;
|
|
398 |
case Cipher::_EncryptedXTSAES256: tty->print_cr(" available: KM XTS-Encrypted-AES-256"); break;
|
|
399 |
default: tty->print_cr(" available: unknown KM code %d", i); break;
|
|
400 |
}
|
|
401 |
}
|
|
402 |
}
|
|
403 |
}
|
|
404 |
if (test_feature_bit(&_cipher_features[2], -1, (int)Cipher::_featureBits)) {
|
|
405 |
tty->print_cr(" available Crypto Features of KMC (Cipher Message with Chaining):");
|
|
406 |
for (unsigned int i = 0; i < Cipher::_featureBits; i++) {
|
|
407 |
if (test_feature_bit(&_cipher_features[2], i, (int)Cipher::_featureBits)) {
|
|
408 |
switch (i) {
|
|
409 |
case Cipher::_Query: tty->print_cr(" available: KMC Query"); break;
|
|
410 |
case Cipher::_DEA: tty->print_cr(" available: KMC DEA"); break;
|
|
411 |
case Cipher::_TDEA128: tty->print_cr(" available: KMC TDEA-128"); break;
|
|
412 |
case Cipher::_TDEA192: tty->print_cr(" available: KMC TDEA-192"); break;
|
|
413 |
case Cipher::_EncryptedDEA: tty->print_cr(" available: KMC Encrypted DEA"); break;
|
|
414 |
case Cipher::_EncryptedDEA128: tty->print_cr(" available: KMC Encrypted DEA-128"); break;
|
|
415 |
case Cipher::_EncryptedDEA192: tty->print_cr(" available: KMC Encrypted DEA-192"); break;
|
|
416 |
case Cipher::_AES128: tty->print_cr(" available: KMC AES-128"); break;
|
|
417 |
case Cipher::_AES192: tty->print_cr(" available: KMC AES-192"); break;
|
|
418 |
case Cipher::_AES256: tty->print_cr(" available: KMC AES-256"); break;
|
|
419 |
case Cipher::_EnccryptedAES128: tty->print_cr(" available: KMC Encrypted-AES-128"); break;
|
|
420 |
case Cipher::_EnccryptedAES192: tty->print_cr(" available: KMC Encrypted-AES-192"); break;
|
|
421 |
case Cipher::_EnccryptedAES256: tty->print_cr(" available: KMC Encrypted-AES-256"); break;
|
|
422 |
case Cipher::_PRNG: tty->print_cr(" available: KMC PRNG"); break;
|
|
423 |
default: tty->print_cr(" available: unknown KMC code %d", i); break;
|
|
424 |
}
|
|
425 |
}
|
|
426 |
}
|
|
427 |
}
|
|
428 |
|
|
429 |
if (test_feature_bit(&_msgdigest_features[0], -1, 2*MsgDigest::_featureBits)) {
|
|
430 |
tty->cr();
|
|
431 |
tty->print_cr(" available: %s", "Message Digest Functions for SHA");
|
|
432 |
}
|
|
433 |
if (test_feature_bit(&_msgdigest_features[0], -1, (int)MsgDigest::_featureBits)) {
|
|
434 |
tty->print_cr(" available Features of KIMD (Msg Digest):");
|
|
435 |
for (unsigned int i = 0; i < MsgDigest::_featureBits; i++) {
|
|
436 |
if (test_feature_bit(&_msgdigest_features[0], i, (int)MsgDigest::_featureBits)) {
|
|
437 |
switch (i) {
|
|
438 |
case MsgDigest::_Query: tty->print_cr(" available: KIMD Query"); break;
|
|
439 |
case MsgDigest::_SHA1: tty->print_cr(" available: KIMD SHA-1"); break;
|
|
440 |
case MsgDigest::_SHA256: tty->print_cr(" available: KIMD SHA-256"); break;
|
|
441 |
case MsgDigest::_SHA512: tty->print_cr(" available: KIMD SHA-512"); break;
|
|
442 |
case MsgDigest::_GHASH: tty->print_cr(" available: KIMD GHASH"); break;
|
|
443 |
default: tty->print_cr(" available: unknown code %d", i); break;
|
|
444 |
}
|
|
445 |
}
|
|
446 |
}
|
|
447 |
}
|
|
448 |
if (test_feature_bit(&_msgdigest_features[2], -1, (int)MsgDigest::_featureBits)) {
|
|
449 |
tty->print_cr(" available Features of KLMD (Msg Digest):");
|
|
450 |
for (unsigned int i = 0; i < MsgDigest::_featureBits; i++) {
|
|
451 |
if (test_feature_bit(&_msgdigest_features[2], i, (int)MsgDigest::_featureBits)) {
|
|
452 |
switch (i) {
|
|
453 |
case MsgDigest::_Query: tty->print_cr(" available: KLMD Query"); break;
|
|
454 |
case MsgDigest::_SHA1: tty->print_cr(" available: KLMD SHA-1"); break;
|
|
455 |
case MsgDigest::_SHA256: tty->print_cr(" available: KLMD SHA-256"); break;
|
|
456 |
case MsgDigest::_SHA512: tty->print_cr(" available: KLMD SHA-512"); break;
|
|
457 |
default: tty->print_cr(" available: unknown code %d", i); break;
|
|
458 |
}
|
|
459 |
}
|
|
460 |
}
|
|
461 |
}
|
|
462 |
}
|
|
463 |
if (ContendedPaddingWidth > 0) {
|
|
464 |
tty->cr();
|
|
465 |
tty->print_cr("ContendedPaddingWidth " INTX_FORMAT, ContendedPaddingWidth);
|
|
466 |
}
|
|
467 |
}
|
|
468 |
}
|
|
469 |
|
|
470 |
void VM_Version::print_features() {
|
|
471 |
print_features_internal("Version:");
|
|
472 |
}
|
|
473 |
|
|
474 |
void VM_Version::reset_features(bool reset) {
|
|
475 |
if (reset) {
|
|
476 |
for (unsigned int i = 0; i < _features_buffer_len; i++) {
|
|
477 |
VM_Version::_features[i] = 0;
|
|
478 |
}
|
|
479 |
}
|
|
480 |
}
|
|
481 |
|
|
482 |
|
|
483 |
void VM_Version::set_features_z900(bool reset) {
|
|
484 |
reset_features(reset);
|
|
485 |
|
|
486 |
set_has_long_displacement();
|
|
487 |
set_has_ETF2();
|
|
488 |
}
|
|
489 |
|
|
490 |
void VM_Version::set_features_z990(bool reset) {
|
|
491 |
reset_features(reset);
|
|
492 |
|
|
493 |
set_features_z900(false);
|
|
494 |
set_has_ETF3();
|
|
495 |
set_has_long_displacement_fast();
|
|
496 |
set_has_HFPMultiplyAndAdd();
|
|
497 |
}
|
|
498 |
|
|
499 |
void VM_Version::set_features_z9(bool reset) {
|
|
500 |
reset_features(reset);
|
|
501 |
|
|
502 |
set_features_z990(false);
|
|
503 |
set_has_StoreFacilityListExtended();
|
|
504 |
// set_has_Crypto(); // Do not set, crypto features must be retrieved separately.
|
|
505 |
set_has_ETF2Enhancements();
|
|
506 |
set_has_ETF3Enhancements();
|
|
507 |
set_has_extended_immediate();
|
|
508 |
set_has_StoreClockFast();
|
|
509 |
set_has_HFPUnnormalized();
|
|
510 |
}
|
|
511 |
|
|
512 |
void VM_Version::set_features_z10(bool reset) {
|
|
513 |
reset_features(reset);
|
|
514 |
|
|
515 |
set_features_z9(false);
|
|
516 |
set_has_CompareSwapStore();
|
|
517 |
set_has_RelativeLoadStore();
|
|
518 |
set_has_CompareBranch();
|
|
519 |
set_has_CompareTrap();
|
|
520 |
set_has_MultiplySingleImm32();
|
|
521 |
set_has_Prefetch();
|
|
522 |
set_has_MoveImmToMem();
|
|
523 |
set_has_MemWithImmALUOps();
|
|
524 |
set_has_ExecuteExtensions();
|
|
525 |
set_has_FPSupportEnhancements();
|
|
526 |
set_has_DecimalFloatingPoint();
|
|
527 |
set_has_ExtractCPUtime();
|
|
528 |
set_has_CryptoExt3();
|
|
529 |
}
|
|
530 |
|
|
531 |
void VM_Version::set_features_z196(bool reset) {
|
|
532 |
reset_features(reset);
|
|
533 |
|
|
534 |
set_features_z10(false);
|
|
535 |
set_has_InterlockedAccessV1();
|
|
536 |
set_has_PopCount();
|
|
537 |
set_has_LoadStoreConditional();
|
|
538 |
set_has_HighWordInstr();
|
|
539 |
set_has_FastSync();
|
|
540 |
set_has_FPExtensions();
|
|
541 |
set_has_DistinctOpnds();
|
|
542 |
set_has_CryptoExt4();
|
|
543 |
}
|
|
544 |
|
|
545 |
void VM_Version::set_features_ec12(bool reset) {
|
|
546 |
reset_features(reset);
|
|
547 |
|
|
548 |
set_features_z196(false);
|
|
549 |
set_has_MiscInstrExt();
|
|
550 |
set_has_InterlockedAccessV2();
|
|
551 |
set_has_LoadAndALUAtomicV2();
|
|
552 |
set_has_TxMem();
|
|
553 |
}
|
|
554 |
|
|
555 |
void VM_Version::set_features_z13(bool reset) {
|
|
556 |
reset_features(reset);
|
|
557 |
|
|
558 |
set_features_ec12(false);
|
|
559 |
set_has_LoadStoreConditional2();
|
|
560 |
set_has_CryptoExt5();
|
|
561 |
set_has_VectorFacility();
|
|
562 |
}
|
|
563 |
|
|
564 |
void VM_Version::set_features_from(const char* march) {
|
|
565 |
bool err = false;
|
|
566 |
bool prt = false;
|
|
567 |
|
|
568 |
if ((march != NULL) && (march[0] != '\0')) {
|
|
569 |
const int buf_len = 16;
|
|
570 |
const int hdr_len = 5;
|
|
571 |
char buf[buf_len];
|
|
572 |
if (strlen(march) >= hdr_len) {
|
|
573 |
memcpy(buf, march, hdr_len);
|
|
574 |
buf[hdr_len] = '\00';
|
|
575 |
} else {
|
|
576 |
buf[0] = '\00';
|
|
577 |
}
|
|
578 |
|
|
579 |
if (!strcmp(march, "z900")) {
|
|
580 |
set_features_z900();
|
|
581 |
} else if (!strcmp(march, "z990")) {
|
|
582 |
set_features_z990();
|
|
583 |
} else if (!strcmp(march, "z9")) {
|
|
584 |
set_features_z9();
|
|
585 |
} else if (!strcmp(march, "z10")) {
|
|
586 |
set_features_z10();
|
|
587 |
} else if (!strcmp(march, "z196")) {
|
|
588 |
set_features_z196();
|
|
589 |
} else if (!strcmp(march, "ec12")) {
|
|
590 |
set_features_ec12();
|
|
591 |
} else if (!strcmp(march, "z13")) {
|
|
592 |
set_features_z13();
|
|
593 |
} else if (!strcmp(buf, "ztest")) {
|
|
594 |
assert(!has_TestFeaturesImpl(), "possible facility list flag conflict");
|
|
595 |
if (strlen(march) > hdr_len) {
|
|
596 |
int itest = 0;
|
|
597 |
if ((strlen(march)-hdr_len) >= buf_len) err = true;
|
|
598 |
if (!err) {
|
|
599 |
memcpy(buf, &march[hdr_len], strlen(march)-hdr_len);
|
|
600 |
buf[strlen(march)-hdr_len] = '\00';
|
|
601 |
for (size_t i = 0; !err && (i < strlen(buf)); i++) {
|
|
602 |
itest = itest*10 + buf[i]-'0';
|
|
603 |
err = err || ((buf[i]-'0') < 0) || ((buf[i]-'0') > 9) || (itest > 15);
|
|
604 |
}
|
|
605 |
}
|
|
606 |
if (!err) {
|
|
607 |
prt = true;
|
|
608 |
if (itest & 0x01) { set_has_TestFeature1Impl(); }
|
|
609 |
if (itest & 0x02) { set_has_TestFeature2Impl(); }
|
|
610 |
if (itest & 0x04) { set_has_TestFeature4Impl(); }
|
|
611 |
if (itest & 0x08) { set_has_TestFeature8Impl(); }
|
|
612 |
}
|
|
613 |
} else {
|
|
614 |
prt = true;
|
|
615 |
set_has_TestFeature1Impl();
|
|
616 |
set_has_TestFeature2Impl();
|
|
617 |
set_has_TestFeature4Impl();
|
|
618 |
set_has_TestFeature8Impl();
|
|
619 |
}
|
|
620 |
} else {
|
|
621 |
err = true;
|
|
622 |
}
|
|
623 |
if (!err) {
|
|
624 |
set_features_string();
|
|
625 |
if (prt || PrintAssembly) {
|
|
626 |
print_features_internal("CPU Version as set by cmdline option:", prt);
|
|
627 |
}
|
|
628 |
} else {
|
|
629 |
tty->print_cr("***Warning: Unsupported ProcessorArchitecture: %s, internal settings left undisturbed.", march);
|
|
630 |
}
|
|
631 |
}
|
|
632 |
|
|
633 |
}
|
|
634 |
|
|
635 |
static long (*getFeatures)(unsigned long*, int, int) = NULL;
|
|
636 |
|
|
637 |
void VM_Version::set_getFeatures(address entryPoint) {
|
|
638 |
if (getFeatures == NULL) {
|
|
639 |
getFeatures = (long(*)(unsigned long*, int, int))entryPoint;
|
|
640 |
}
|
|
641 |
}
|
|
642 |
|
|
643 |
long VM_Version::call_getFeatures(unsigned long* buffer, int buflen, int functionCode) {
|
|
644 |
VM_Version::_is_determine_features_test_running = true;
|
|
645 |
long functionResult = (*getFeatures)(buffer, buflen, functionCode);
|
|
646 |
VM_Version::_is_determine_features_test_running = false;
|
|
647 |
return functionResult;
|
|
648 |
}
|
|
649 |
|
|
650 |
// Helper function for "extract cache attribute" instruction.
|
|
651 |
int VM_Version::calculate_ECAG_functionCode(unsigned int attributeIndication,
|
|
652 |
unsigned int levelIndication,
|
|
653 |
unsigned int typeIndication) {
|
|
654 |
return (attributeIndication<<4) | (levelIndication<<1) | typeIndication;
|
|
655 |
}
|
|
656 |
|
|
657 |
void VM_Version::determine_features() {
|
|
658 |
|
|
659 |
const int cbuf_size = _code_buffer_len;
|
|
660 |
const int buf_len = _features_buffer_len;
|
|
661 |
|
|
662 |
// Allocate code buffer space for the detection code.
|
|
663 |
ResourceMark rm;
|
|
664 |
CodeBuffer cbuf("determine CPU features", cbuf_size, 0);
|
|
665 |
MacroAssembler* a = new MacroAssembler(&cbuf);
|
|
666 |
|
|
667 |
// Emit code.
|
|
668 |
set_getFeatures(a->pc());
|
|
669 |
address code = a->pc();
|
|
670 |
|
|
671 |
// Try STFLE. Possible INVOP will cause defaults to be used.
|
|
672 |
Label getFEATURES;
|
|
673 |
Label getCPUFEATURES; // fcode = -1 (cache)
|
|
674 |
Label getCIPHERFEATURES; // fcode = -2 (cipher)
|
|
675 |
Label getMSGDIGESTFEATURES; // fcode = -3 (SHA)
|
|
676 |
Label checkLongDispFast;
|
|
677 |
Label noLongDisp;
|
|
678 |
Label posDisp, negDisp;
|
|
679 |
Label errRTN;
|
|
680 |
a->z_ltgfr(Z_R0, Z_ARG2); // Buf len to r0 and test.
|
|
681 |
a->z_brl(getFEATURES); // negative -> Get machine features.
|
|
682 |
a->z_brz(checkLongDispFast); // zero -> Check for high-speed Long Displacement Facility.
|
|
683 |
a->z_aghi(Z_R0, -1);
|
|
684 |
a->z_stfle(0, Z_ARG1);
|
|
685 |
a->z_lg(Z_R1, 0, Z_ARG1); // Get first DW of facility list.
|
|
686 |
a->z_lgr(Z_RET, Z_R0); // Calculate rtn value for success.
|
|
687 |
a->z_la(Z_RET, 1, Z_RET);
|
|
688 |
a->z_brnz(errRTN); // Instr failed if non-zero CC.
|
|
689 |
a->z_ltgr(Z_R1, Z_R1); // Instr failed if first DW == 0.
|
|
690 |
a->z_bcr(Assembler::bcondNotZero, Z_R14); // Successful return.
|
|
691 |
|
|
692 |
a->bind(errRTN);
|
|
693 |
a->z_lngr(Z_RET, Z_RET);
|
|
694 |
a->z_ltgr(Z_R1, Z_R1);
|
|
695 |
a->z_bcr(Assembler::bcondNotZero, Z_R14); // Return "buffer too small".
|
|
696 |
a->z_xgr(Z_RET, Z_RET);
|
|
697 |
a->z_br(Z_R14); // Return "operation aborted".
|
|
698 |
|
|
699 |
a->bind(getFEATURES);
|
|
700 |
a->z_cghi(Z_R0, -1); // -1: Extract CPU attributes, currently: cache layout only.
|
|
701 |
a->z_bre(getCPUFEATURES);
|
|
702 |
a->z_cghi(Z_R0, -2); // -2: Extract detailed crypto capabilities (cipher instructions).
|
|
703 |
a->z_bre(getCIPHERFEATURES);
|
|
704 |
a->z_cghi(Z_R0, -3); // -3: Extract detailed crypto capabilities (msg digest instructions).
|
|
705 |
a->z_bre(getMSGDIGESTFEATURES);
|
|
706 |
|
|
707 |
a->z_xgr(Z_RET, Z_RET); // Not a valid function code.
|
|
708 |
a->z_br(Z_R14); // Return "operation aborted".
|
|
709 |
|
|
710 |
// Try KIMD/KLMD query function to get details about msg digest (secure hash, SHA) instructions.
|
|
711 |
a->bind(getMSGDIGESTFEATURES);
|
|
712 |
a->z_lghi(Z_R0,(int)MsgDigest::_Query); // query function code
|
|
713 |
a->z_lgr(Z_R1,Z_R2); // param block addr, 2*16 bytes min size
|
|
714 |
a->z_kimd(Z_R2,Z_R2); // Get available KIMD functions (bit pattern in param blk).
|
|
715 |
a->z_la(Z_R1,16,Z_R1); // next param block addr
|
|
716 |
a->z_klmd(Z_R2,Z_R2); // Get available KLMD functions (bit pattern in param blk).
|
|
717 |
a->z_lghi(Z_RET,4);
|
|
718 |
a->z_br(Z_R14);
|
|
719 |
|
|
720 |
// Try KM/KMC query function to get details about crypto instructions.
|
|
721 |
a->bind(getCIPHERFEATURES);
|
|
722 |
a->z_lghi(Z_R0,(int)Cipher::_Query); // query function code
|
|
723 |
a->z_lgr(Z_R1,Z_R2); // param block addr, 2*16 bytes min size (KIMD/KLMD output)
|
|
724 |
a->z_km(Z_R2,Z_R2); // get available KM functions
|
|
725 |
a->z_la(Z_R1,16,Z_R1); // next param block addr
|
|
726 |
a->z_kmc(Z_R2,Z_R2); // get available KMC functions
|
|
727 |
a->z_lghi(Z_RET,4);
|
|
728 |
a->z_br(Z_R14);
|
|
729 |
|
|
730 |
// Use EXTRACT CPU ATTRIBUTE instruction to get information about cache layout.
|
|
731 |
a->bind(getCPUFEATURES);
|
|
732 |
a->z_xgr(Z_R0,Z_R0); // as recommended in instruction documentation
|
|
733 |
a->z_ecag(Z_RET,Z_R0,0,Z_ARG3); // Extract information as requested by Z_ARG1 contents.
|
|
734 |
a->z_br(Z_R14);
|
|
735 |
|
|
736 |
// Check the performance of the Long Displacement Facility, i.e. find out if we are running on z900 or newer.
|
|
737 |
a->bind(checkLongDispFast);
|
|
738 |
a->z_llill(Z_R0, 0xffff); // preset #iterations
|
|
739 |
a->z_larl(Z_R1, posDisp);
|
|
740 |
a->z_stck(0, Z_ARG1); // Get begin timestamp.
|
|
741 |
|
|
742 |
a->bind(posDisp); // Positive disp loop.
|
|
743 |
a->z_lg(Z_ARG2, 0, Z_ARG1);
|
|
744 |
a->z_bctgr(Z_R0, Z_R1);
|
|
745 |
|
|
746 |
a->z_stck(0, Z_ARG1); // Get end timestamp.
|
|
747 |
a->z_sg(Z_ARG2, 0, Z_R0, Z_ARG1); // Calculate elapsed time.
|
|
748 |
a->z_lcgr(Z_ARG2, Z_ARG2);
|
|
749 |
a->z_srlg(Z_ARG2, Z_ARG2, 12); // LSB: now microseconds
|
|
750 |
a->z_stg(Z_ARG2, 8, Z_ARG1); // Store difference in buffer[1].
|
|
751 |
|
|
752 |
a->z_llill(Z_R0, 0xffff); // preset #iterations
|
|
753 |
a->z_larl(Z_R1, negDisp);
|
|
754 |
a->z_xgr(Z_ARG2, Z_ARG2); // Clear to detect absence of LongDisp facility.
|
|
755 |
a->z_stck(0, Z_ARG1); // Get begin timestamp.
|
|
756 |
a->z_la(Z_ARG1, 8, Z_ARG1);
|
|
757 |
|
|
758 |
a->bind(negDisp); // Negative disp loop.
|
|
759 |
a->z_lg(Z_ARG2, -8, Z_ARG1);
|
|
760 |
a->z_bctgr(Z_R0, Z_R1);
|
|
761 |
|
|
762 |
a->z_aghi(Z_ARG1, -8);
|
|
763 |
a->z_stck(0, Z_ARG1); // Get end timestamp.
|
|
764 |
a->z_ltgr(Z_ARG2, Z_ARG2); // Check for absence of LongDisp facility.
|
|
765 |
a->z_brz(noLongDisp);
|
|
766 |
a->z_sg(Z_ARG2, 0, Z_R0, Z_ARG1); // Calc elapsed time.
|
|
767 |
a->z_lcgr(Z_ARG2, Z_ARG2);
|
|
768 |
a->z_srlg(Z_ARG2, Z_ARG2, 12); // LSB: now microseconds
|
|
769 |
a->z_stg(Z_ARG2, 0, Z_ARG1); // store difference in buffer[0]
|
|
770 |
|
|
771 |
a->z_llill(Z_RET,0xffff);
|
|
772 |
a->z_br(Z_R14);
|
|
773 |
|
|
774 |
a->bind(noLongDisp);
|
|
775 |
a->z_lghi(Z_RET,-1);
|
|
776 |
a->z_br(Z_R14);
|
|
777 |
|
|
778 |
address code_end = a->pc();
|
|
779 |
a->flush();
|
|
780 |
|
|
781 |
// Print the detection code.
|
|
782 |
bool printVerbose = Verbose || PrintAssembly || PrintStubCode;
|
|
783 |
if (printVerbose) {
|
|
784 |
ttyLocker ttyl;
|
|
785 |
tty->print_cr("Decoding CPU feature detection stub at " INTPTR_FORMAT " before execution:", p2i(code));
|
|
786 |
tty->print_cr("Stub length is %ld bytes, codebuffer reserves %d bytes, %ld bytes spare.",
|
|
787 |
code_end-code, cbuf_size, cbuf_size-(code_end-code));
|
|
788 |
|
|
789 |
// Use existing decode function. This enables the [Code] format which is needed to DecodeErrorFile.
|
|
790 |
Disassembler::decode((u_char*)code, (u_char*)code_end, tty);
|
|
791 |
}
|
|
792 |
|
|
793 |
// Prepare for detection code execution and clear work buffer.
|
|
794 |
_nfeatures = 0;
|
|
795 |
_ncipher_features = 0;
|
|
796 |
unsigned long buffer[buf_len];
|
|
797 |
|
|
798 |
for (int i = 0; i < buf_len; i++) {
|
|
799 |
buffer[i] = 0L;
|
|
800 |
}
|
|
801 |
|
|
802 |
// execute code
|
|
803 |
// Illegal instructions will be replaced by 0 in signal handler.
|
|
804 |
// In case of problems, call_getFeatures will return a not-positive result.
|
|
805 |
long used_len = call_getFeatures(buffer, buf_len, 0);
|
|
806 |
|
|
807 |
bool ok;
|
|
808 |
if (used_len == 1) {
|
|
809 |
ok = true;
|
|
810 |
} else if (used_len > 1) {
|
|
811 |
unsigned int used_lenU = (unsigned int)used_len;
|
|
812 |
ok = true;
|
|
813 |
for (unsigned int i = 1; i < used_lenU; i++) {
|
|
814 |
ok = ok && (buffer[i] == 0L);
|
|
815 |
}
|
|
816 |
if (printVerbose && !ok) {
|
|
817 |
bool compact = false;
|
|
818 |
tty->print_cr("Note: feature list has %d (i.e. more than one) array elements.", used_lenU);
|
|
819 |
if (compact) {
|
|
820 |
tty->print("non-zero feature list elements:");
|
|
821 |
for (unsigned int i = 0; i < used_lenU; i++) {
|
|
822 |
tty->print(" [%d]: 0x%16.16lx", i, buffer[i]);
|
|
823 |
}
|
|
824 |
tty->cr();
|
|
825 |
} else {
|
|
826 |
for (unsigned int i = 0; i < used_lenU; i++) {
|
|
827 |
tty->print_cr("non-zero feature list[%d]: 0x%16.16lx", i, buffer[i]);
|
|
828 |
}
|
|
829 |
}
|
|
830 |
|
|
831 |
if (compact) {
|
|
832 |
tty->print_cr("Active features (compact view):");
|
|
833 |
for (unsigned int k = 0; k < used_lenU; k++) {
|
|
834 |
tty->print_cr(" buffer[%d]:", k);
|
|
835 |
for (unsigned int j = k*sizeof(long); j < (k+1)*sizeof(long); j++) {
|
|
836 |
bool line = false;
|
|
837 |
for (unsigned int i = j*8; i < (j+1)*8; i++) {
|
|
838 |
bool bit = test_feature_bit(buffer, i, used_lenU*sizeof(long)*8);
|
|
839 |
if (bit) {
|
|
840 |
if (!line) {
|
|
841 |
tty->print(" byte[%d]:", j);
|
|
842 |
line = true;
|
|
843 |
}
|
|
844 |
tty->print(" [%3.3d]", i);
|
|
845 |
}
|
|
846 |
}
|
|
847 |
if (line) {
|
|
848 |
tty->cr();
|
|
849 |
}
|
|
850 |
}
|
|
851 |
}
|
|
852 |
} else {
|
|
853 |
tty->print_cr("Active features (full view):");
|
|
854 |
for (unsigned int k = 0; k < used_lenU; k++) {
|
|
855 |
tty->print_cr(" buffer[%d]:", k);
|
|
856 |
for (unsigned int j = k*sizeof(long); j < (k+1)*sizeof(long); j++) {
|
|
857 |
tty->print(" byte[%d]:", j);
|
|
858 |
for (unsigned int i = j*8; i < (j+1)*8; i++) {
|
|
859 |
bool bit = test_feature_bit(buffer, i, used_lenU*sizeof(long)*8);
|
|
860 |
if (bit) {
|
|
861 |
tty->print(" [%3.3d]", i);
|
|
862 |
} else {
|
|
863 |
tty->print(" ");
|
|
864 |
}
|
|
865 |
}
|
|
866 |
tty->cr();
|
|
867 |
}
|
|
868 |
}
|
|
869 |
}
|
|
870 |
}
|
|
871 |
ok = true;
|
|
872 |
} else { // No features retrieved if we reach here. Buffer too short or instr not available.
|
|
873 |
if (used_len < 0) {
|
|
874 |
ok = false;
|
|
875 |
if (printVerbose) {
|
|
876 |
tty->print_cr("feature list buffer[%d] too short, required: buffer[%ld]", buf_len, -used_len);
|
|
877 |
}
|
|
878 |
} else {
|
|
879 |
if (printVerbose) {
|
|
880 |
tty->print_cr("feature list could not be retrieved. Running on z900 or z990? Trying to find out...");
|
|
881 |
}
|
|
882 |
used_len = call_getFeatures(buffer, 0, 0); // Must provide at least two DW buffer elements!!!!
|
|
883 |
|
|
884 |
ok = used_len > 0;
|
|
885 |
if (ok) {
|
|
886 |
if (buffer[1]*10 < buffer[0]) {
|
|
887 |
set_features_z900();
|
|
888 |
} else {
|
|
889 |
set_features_z990();
|
|
890 |
}
|
|
891 |
|
|
892 |
if (printVerbose) {
|
|
893 |
tty->print_cr("Note: high-speed long displacement test used %ld iterations.", used_len);
|
|
894 |
tty->print_cr(" Positive displacement loads took %8.8lu microseconds.", buffer[1]);
|
|
895 |
tty->print_cr(" Negative displacement loads took %8.8lu microseconds.", buffer[0]);
|
|
896 |
if (has_long_displacement_fast()) {
|
|
897 |
tty->print_cr(" assuming high-speed long displacement IS available.");
|
|
898 |
} else {
|
|
899 |
tty->print_cr(" assuming high-speed long displacement is NOT available.");
|
|
900 |
}
|
|
901 |
}
|
|
902 |
} else {
|
|
903 |
if (printVerbose) {
|
|
904 |
tty->print_cr("Note: high-speed long displacement test was not successful.");
|
|
905 |
tty->print_cr(" assuming long displacement is NOT available.");
|
|
906 |
}
|
|
907 |
}
|
|
908 |
return; // Do not copy buffer to _features, no test for cipher features.
|
|
909 |
}
|
|
910 |
}
|
|
911 |
|
|
912 |
if (ok) {
|
|
913 |
// Fill features buffer.
|
|
914 |
// Clear work buffer.
|
|
915 |
for (int i = 0; i < buf_len; i++) {
|
|
916 |
_features[i] = buffer[i];
|
|
917 |
_cipher_features[i] = 0;
|
|
918 |
_msgdigest_features[i] = 0;
|
|
919 |
buffer[i] = 0L;
|
|
920 |
}
|
|
921 |
_nfeatures = used_len;
|
|
922 |
} else {
|
|
923 |
for (int i = 0; i < buf_len; i++) {
|
|
924 |
_features[i] = 0;
|
|
925 |
_cipher_features[i] = 0;
|
|
926 |
_msgdigest_features[i] = 0;
|
|
927 |
buffer[i] = 0L;
|
|
928 |
}
|
|
929 |
_nfeatures = 0;
|
|
930 |
}
|
|
931 |
|
|
932 |
// Extract Crypto Facility details.
|
|
933 |
if (has_Crypto()) {
|
|
934 |
// Get cipher features.
|
|
935 |
used_len = call_getFeatures(buffer, -2, 0);
|
|
936 |
for (int i = 0; i < buf_len; i++) {
|
|
937 |
_cipher_features[i] = buffer[i];
|
|
938 |
}
|
|
939 |
_ncipher_features = used_len;
|
|
940 |
|
|
941 |
// Get msg digest features.
|
|
942 |
used_len = call_getFeatures(buffer, -3, 0);
|
|
943 |
for (int i = 0; i < buf_len; i++) {
|
|
944 |
_msgdigest_features[i] = buffer[i];
|
|
945 |
}
|
|
946 |
_nmsgdigest_features = used_len;
|
|
947 |
}
|
|
948 |
|
|
949 |
static int levelProperties[_max_cache_levels]; // All property indications per level.
|
|
950 |
static int levelScope[_max_cache_levels]; // private/shared
|
|
951 |
static const char* levelScopeText[4] = {"No cache ",
|
|
952 |
"CPU private",
|
|
953 |
"shared ",
|
|
954 |
"reserved "};
|
|
955 |
|
|
956 |
static int levelType[_max_cache_levels]; // D/I/mixed
|
|
957 |
static const char* levelTypeText[4] = {"separate D and I caches",
|
|
958 |
"I cache only ",
|
|
959 |
"D-cache only ",
|
|
960 |
"combined D/I cache "};
|
|
961 |
|
|
962 |
static unsigned int levelReserved[_max_cache_levels]; // reserved property bits
|
|
963 |
static unsigned int levelLineSize[_max_cache_levels];
|
|
964 |
static unsigned int levelTotalSize[_max_cache_levels];
|
|
965 |
static unsigned int levelAssociativity[_max_cache_levels];
|
|
966 |
|
|
967 |
|
|
968 |
// Extract Cache Layout details.
|
|
969 |
if (has_ExtractCPUAttributes() && printVerbose) { // For information only, as of now.
|
|
970 |
bool lineSize_mismatch;
|
|
971 |
bool print_something;
|
|
972 |
long functionResult;
|
|
973 |
unsigned int attributeIndication = 0; // 0..15
|
|
974 |
unsigned int levelIndication = 0; // 0..8
|
|
975 |
unsigned int typeIndication = 0; // 0..1 (D-Cache, I-Cache)
|
|
976 |
int functionCode = calculate_ECAG_functionCode(attributeIndication, levelIndication, typeIndication);
|
|
977 |
|
|
978 |
// Get cache topology.
|
|
979 |
functionResult = call_getFeatures(buffer, -1, functionCode);
|
|
980 |
|
|
981 |
for (unsigned int i = 0; i < _max_cache_levels; i++) {
|
|
982 |
if (functionResult > 0) {
|
|
983 |
int shiftVal = 8*(_max_cache_levels-(i+1));
|
|
984 |
levelProperties[i] = (functionResult & (0xffUL<<shiftVal)) >> shiftVal;
|
|
985 |
levelReserved[i] = (levelProperties[i] & 0xf0) >> 4;
|
|
986 |
levelScope[i] = (levelProperties[i] & 0x0c) >> 2;
|
|
987 |
levelType[i] = (levelProperties[i] & 0x03);
|
|
988 |
} else {
|
|
989 |
levelProperties[i] = 0;
|
|
990 |
levelReserved[i] = 0;
|
|
991 |
levelScope[i] = 0;
|
|
992 |
levelType[i] = 0;
|
|
993 |
}
|
|
994 |
levelLineSize[i] = 0;
|
|
995 |
levelTotalSize[i] = 0;
|
|
996 |
levelAssociativity[i] = 0;
|
|
997 |
}
|
|
998 |
|
|
999 |
tty->cr();
|
|
1000 |
tty->print_cr("------------------------------------");
|
|
1001 |
tty->print_cr("--- Cache Topology Information ---");
|
|
1002 |
tty->print_cr("------------------------------------");
|
|
1003 |
for (unsigned int i = 0; (i < _max_cache_levels) && (levelProperties[i] != 0); i++) {
|
|
1004 |
tty->print_cr(" Cache Level %d: <scope> %s | <type> %s",
|
|
1005 |
i+1, levelScopeText[levelScope[i]], levelTypeText[levelType[i]]);
|
|
1006 |
}
|
|
1007 |
|
|
1008 |
// Get D-cache details per level.
|
|
1009 |
_Dcache_lineSize = 0;
|
|
1010 |
lineSize_mismatch = false;
|
|
1011 |
print_something = false;
|
|
1012 |
typeIndication = 0; // 0..1 (D-Cache, I-Cache)
|
|
1013 |
for (unsigned int i = 0; (i < _max_cache_levels) && (levelProperties[i] != 0); i++) {
|
|
1014 |
if ((levelType[i] == 0) || (levelType[i] == 2)) {
|
|
1015 |
print_something = true;
|
|
1016 |
|
|
1017 |
// Get cache line size of level i.
|
|
1018 |
attributeIndication = 1;
|
|
1019 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1020 |
levelLineSize[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1021 |
|
|
1022 |
// Get cache total size of level i.
|
|
1023 |
attributeIndication = 2;
|
|
1024 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1025 |
levelTotalSize[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1026 |
|
|
1027 |
// Get cache associativity of level i.
|
|
1028 |
attributeIndication = 3;
|
|
1029 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1030 |
levelAssociativity[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1031 |
|
|
1032 |
_Dcache_lineSize = _Dcache_lineSize == 0 ? levelLineSize[i] : _Dcache_lineSize;
|
|
1033 |
lineSize_mismatch = lineSize_mismatch || (_Dcache_lineSize != levelLineSize[i]);
|
|
1034 |
} else {
|
|
1035 |
levelLineSize[i] = 0;
|
|
1036 |
}
|
|
1037 |
}
|
|
1038 |
|
|
1039 |
if (print_something) {
|
|
1040 |
tty->cr();
|
|
1041 |
tty->print_cr("------------------------------------");
|
|
1042 |
tty->print_cr("--- D-Cache Detail Information ---");
|
|
1043 |
tty->print_cr("------------------------------------");
|
|
1044 |
if (lineSize_mismatch) {
|
|
1045 |
tty->print_cr("WARNING: D-Cache line size mismatch!");
|
|
1046 |
}
|
|
1047 |
for (unsigned int i = 0; (i < _max_cache_levels) && (levelProperties[i] != 0); i++) {
|
|
1048 |
if (levelLineSize[i] > 0) {
|
|
1049 |
tty->print_cr(" D-Cache Level %d: line size = %4d, total size = %6dKB, associativity = %2d",
|
|
1050 |
i+1, levelLineSize[i], levelTotalSize[i]/(int)K, levelAssociativity[i]);
|
|
1051 |
}
|
|
1052 |
}
|
|
1053 |
}
|
|
1054 |
|
|
1055 |
// Get I-cache details per level.
|
|
1056 |
_Icache_lineSize = 0;
|
|
1057 |
lineSize_mismatch = false;
|
|
1058 |
print_something = false;
|
|
1059 |
typeIndication = 1; // 0..1 (D-Cache, I-Cache)
|
|
1060 |
for (unsigned int i = 0; (i < _max_cache_levels) && (levelProperties[i] != 0); i++) {
|
|
1061 |
if ((levelType[i] == 0) || (levelType[i] == 1)) {
|
|
1062 |
print_something = true;
|
|
1063 |
|
|
1064 |
// Get cache line size of level i.
|
|
1065 |
attributeIndication = 1;
|
|
1066 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1067 |
levelLineSize[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1068 |
|
|
1069 |
// Get cache total size of level i.
|
|
1070 |
attributeIndication = 2;
|
|
1071 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1072 |
levelTotalSize[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1073 |
|
|
1074 |
// Get cache associativity of level i.
|
|
1075 |
attributeIndication = 3;
|
|
1076 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1077 |
levelAssociativity[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1078 |
|
|
1079 |
_Icache_lineSize = _Icache_lineSize == 0 ? levelLineSize[i] : _Icache_lineSize;
|
|
1080 |
lineSize_mismatch = lineSize_mismatch || (_Icache_lineSize != levelLineSize[i]);
|
|
1081 |
} else {
|
|
1082 |
levelLineSize[i] = 0;
|
|
1083 |
}
|
|
1084 |
}
|
|
1085 |
|
|
1086 |
if (print_something) {
|
|
1087 |
tty->cr();
|
|
1088 |
tty->print_cr("------------------------------------");
|
|
1089 |
tty->print_cr("--- I-Cache Detail Information ---");
|
|
1090 |
tty->print_cr("------------------------------------");
|
|
1091 |
if (lineSize_mismatch) {
|
|
1092 |
tty->print_cr("WARNING: I-Cache line size mismatch!");
|
|
1093 |
}
|
|
1094 |
for (unsigned int i = 0; (i < _max_cache_levels) && (levelProperties[i] != 0); i++) {
|
|
1095 |
if (levelLineSize[i] > 0) {
|
|
1096 |
tty->print_cr(" I-Cache Level %d: line size = %4d, total size = %6dKB, associativity = %2d",
|
|
1097 |
i+1, levelLineSize[i], levelTotalSize[i]/(int)K, levelAssociativity[i]);
|
|
1098 |
}
|
|
1099 |
}
|
|
1100 |
}
|
|
1101 |
|
|
1102 |
// Get D/I-cache details per level.
|
|
1103 |
lineSize_mismatch = false;
|
|
1104 |
print_something = false;
|
|
1105 |
typeIndication = 0; // 0..1 (D-Cache, I-Cache)
|
|
1106 |
for (unsigned int i = 0; (i < _max_cache_levels) && (levelProperties[i] != 0); i++) {
|
|
1107 |
if (levelType[i] == 3) {
|
|
1108 |
print_something = true;
|
|
1109 |
|
|
1110 |
// Get cache line size of level i.
|
|
1111 |
attributeIndication = 1;
|
|
1112 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1113 |
levelLineSize[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1114 |
|
|
1115 |
// Get cache total size of level i.
|
|
1116 |
attributeIndication = 2;
|
|
1117 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1118 |
levelTotalSize[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1119 |
|
|
1120 |
// Get cache associativity of level i.
|
|
1121 |
attributeIndication = 3;
|
|
1122 |
functionCode = calculate_ECAG_functionCode(attributeIndication, i, typeIndication);
|
|
1123 |
levelAssociativity[i] = (unsigned int)call_getFeatures(buffer, -1, functionCode);
|
|
1124 |
|
|
1125 |
_Dcache_lineSize = _Dcache_lineSize == 0 ? levelLineSize[i] : _Dcache_lineSize;
|
|
1126 |
_Icache_lineSize = _Icache_lineSize == 0 ? levelLineSize[i] : _Icache_lineSize;
|
|
1127 |
lineSize_mismatch = lineSize_mismatch || (_Dcache_lineSize != levelLineSize[i])
|
|
1128 |
|| (_Icache_lineSize != levelLineSize[i]);
|
|
1129 |
} else {
|
|
1130 |
levelLineSize[i] = 0;
|
|
1131 |
}
|
|
1132 |
}
|
|
1133 |
|
|
1134 |
if (print_something) {
|
|
1135 |
tty->cr();
|
|
1136 |
tty->print_cr("--------------------------------------");
|
|
1137 |
tty->print_cr("--- D/I-Cache Detail Information ---");
|
|
1138 |
tty->print_cr("--------------------------------------");
|
|
1139 |
if (lineSize_mismatch) {
|
|
1140 |
tty->print_cr("WARNING: D/I-Cache line size mismatch!");
|
|
1141 |
}
|
|
1142 |
for (unsigned int i = 0; (i < _max_cache_levels) && (levelProperties[i] != 0); i++) {
|
|
1143 |
if (levelLineSize[i] > 0) {
|
|
1144 |
tty->print_cr(" D/I-Cache Level %d: line size = %4d, total size = %6dKB, associativity = %2d",
|
|
1145 |
i+1, levelLineSize[i], levelTotalSize[i]/(int)K, levelAssociativity[i]);
|
|
1146 |
}
|
|
1147 |
}
|
|
1148 |
}
|
|
1149 |
tty->cr();
|
|
1150 |
}
|
|
1151 |
return;
|
|
1152 |
}
|
|
1153 |
|
|
1154 |
unsigned long VM_Version::z_SIGILL() {
|
|
1155 |
unsigned long ZeroBuffer = 0;
|
|
1156 |
unsigned long work;
|
|
1157 |
asm(
|
|
1158 |
" LA %[work],%[buffer] \n\t" // Load address of buffer.
|
|
1159 |
" LARL 14,+6 \n\t" // Load address of faulting instruction.
|
|
1160 |
" BCR 15,%[work] \n\t" // Branch into buffer, execute whatever is in there.
|
|
1161 |
: [buffer] "+Q" (ZeroBuffer) /* outputs */
|
|
1162 |
, [work] "=&a" (work) /* outputs */
|
|
1163 |
: /* inputs */
|
|
1164 |
: "cc" /* clobbered */
|
|
1165 |
);
|
|
1166 |
return ZeroBuffer;
|
|
1167 |
}
|
|
1168 |
|
|
1169 |
unsigned long VM_Version::z_SIGSEGV() {
|
|
1170 |
unsigned long ZeroBuffer = 0;
|
|
1171 |
unsigned long work;
|
|
1172 |
asm(
|
|
1173 |
" LG %[work],%[buffer] \n\t" // Load zero address.
|
|
1174 |
" STG %[work],0(,%[work])\n\t" // Store to address zero.
|
|
1175 |
: [buffer] "+Q" (ZeroBuffer) /* outputs */
|
|
1176 |
, [work] "=&a" (work) /* outputs */
|
|
1177 |
: /* inputs */
|
|
1178 |
: "cc" /* clobbered */
|
|
1179 |
);
|
|
1180 |
return ZeroBuffer;
|
|
1181 |
}
|
|
1182 |
|