1/*
2 * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
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.
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22 */
23package jdk.vm.ci.hotspot.amd64;
24
25import static jdk.vm.ci.common.InitTimer.timer;
26
27import java.util.EnumSet;
28
29import jdk.vm.ci.amd64.AMD64;
30import jdk.vm.ci.code.Architecture;
31import jdk.vm.ci.code.RegisterConfig;
32import jdk.vm.ci.code.TargetDescription;
33import jdk.vm.ci.code.stack.StackIntrospection;
34import jdk.vm.ci.common.InitTimer;
35import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider;
36import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
37import jdk.vm.ci.hotspot.HotSpotJVMCIBackendFactory;
38import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider;
39import jdk.vm.ci.hotspot.HotSpotMetaAccessProvider;
40import jdk.vm.ci.hotspot.HotSpotStackIntrospection;
41import jdk.vm.ci.meta.ConstantReflectionProvider;
42import jdk.vm.ci.runtime.JVMCIBackend;
43
44public class AMD64HotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFactory {
45
46    protected EnumSet<AMD64.CPUFeature> computeFeatures(AMD64HotSpotVMConfig config) {
47        // Configure the feature set using the HotSpot flag settings.
48        EnumSet<AMD64.CPUFeature> features = EnumSet.noneOf(AMD64.CPUFeature.class);
49        if ((config.vmVersionFeatures & config.amd643DNOWPREFETCH) != 0) {
50            features.add(AMD64.CPUFeature.AMD_3DNOW_PREFETCH);
51        }
52        assert config.useSSE >= 2 : "minimum config for x64";
53        features.add(AMD64.CPUFeature.SSE);
54        features.add(AMD64.CPUFeature.SSE2);
55        if ((config.vmVersionFeatures & config.amd64SSE3) != 0) {
56            features.add(AMD64.CPUFeature.SSE3);
57        }
58        if ((config.vmVersionFeatures & config.amd64SSSE3) != 0) {
59            features.add(AMD64.CPUFeature.SSSE3);
60        }
61        if ((config.vmVersionFeatures & config.amd64SSE4A) != 0) {
62            features.add(AMD64.CPUFeature.SSE4A);
63        }
64        if ((config.vmVersionFeatures & config.amd64SSE41) != 0) {
65            features.add(AMD64.CPUFeature.SSE4_1);
66        }
67        if ((config.vmVersionFeatures & config.amd64SSE42) != 0) {
68            features.add(AMD64.CPUFeature.SSE4_2);
69        }
70        if ((config.vmVersionFeatures & config.amd64POPCNT) != 0) {
71            features.add(AMD64.CPUFeature.POPCNT);
72        }
73        if ((config.vmVersionFeatures & config.amd64LZCNT) != 0) {
74            features.add(AMD64.CPUFeature.LZCNT);
75        }
76        if ((config.vmVersionFeatures & config.amd64ERMS) != 0) {
77            features.add(AMD64.CPUFeature.ERMS);
78        }
79        if ((config.vmVersionFeatures & config.amd64AVX) != 0) {
80            features.add(AMD64.CPUFeature.AVX);
81        }
82        if ((config.vmVersionFeatures & config.amd64AVX2) != 0) {
83            features.add(AMD64.CPUFeature.AVX2);
84        }
85        if ((config.vmVersionFeatures & config.amd64AES) != 0) {
86            features.add(AMD64.CPUFeature.AES);
87        }
88        if ((config.vmVersionFeatures & config.amd643DNOWPREFETCH) != 0) {
89            features.add(AMD64.CPUFeature.AMD_3DNOW_PREFETCH);
90        }
91        if ((config.vmVersionFeatures & config.amd64BMI1) != 0) {
92            features.add(AMD64.CPUFeature.BMI1);
93        }
94        if ((config.vmVersionFeatures & config.amd64BMI2) != 0) {
95            features.add(AMD64.CPUFeature.BMI2);
96        }
97        if ((config.vmVersionFeatures & config.amd64RTM) != 0) {
98            features.add(AMD64.CPUFeature.RTM);
99        }
100        if ((config.vmVersionFeatures & config.amd64ADX) != 0) {
101            features.add(AMD64.CPUFeature.ADX);
102        }
103        if ((config.vmVersionFeatures & config.amd64AVX512F) != 0) {
104            features.add(AMD64.CPUFeature.AVX512F);
105        }
106        if ((config.vmVersionFeatures & config.amd64AVX512DQ) != 0) {
107            features.add(AMD64.CPUFeature.AVX512DQ);
108        }
109        if ((config.vmVersionFeatures & config.amd64AVX512PF) != 0) {
110            features.add(AMD64.CPUFeature.AVX512PF);
111        }
112        if ((config.vmVersionFeatures & config.amd64AVX512ER) != 0) {
113            features.add(AMD64.CPUFeature.AVX512ER);
114        }
115        if ((config.vmVersionFeatures & config.amd64AVX512CD) != 0) {
116            features.add(AMD64.CPUFeature.AVX512CD);
117        }
118        if ((config.vmVersionFeatures & config.amd64AVX512BW) != 0) {
119            features.add(AMD64.CPUFeature.AVX512BW);
120        }
121        if ((config.vmVersionFeatures & config.amd64AVX512VL) != 0) {
122            features.add(AMD64.CPUFeature.AVX512VL);
123        }
124        if ((config.vmVersionFeatures & config.amd64SHA) != 0) {
125            features.add(AMD64.CPUFeature.SHA);
126        }
127        if ((config.vmVersionFeatures & config.amd64FMA) != 0) {
128            features.add(AMD64.CPUFeature.FMA);
129        }
130        return features;
131    }
132
133    protected EnumSet<AMD64.Flag> computeFlags(AMD64HotSpotVMConfig config) {
134        EnumSet<AMD64.Flag> flags = EnumSet.noneOf(AMD64.Flag.class);
135        if (config.useCountLeadingZerosInstruction) {
136            flags.add(AMD64.Flag.UseCountLeadingZerosInstruction);
137        }
138        if (config.useCountTrailingZerosInstruction) {
139            flags.add(AMD64.Flag.UseCountTrailingZerosInstruction);
140        }
141        return flags;
142    }
143
144    protected TargetDescription createTarget(AMD64HotSpotVMConfig config) {
145        final int stackFrameAlignment = 16;
146        final int implicitNullCheckLimit = 4096;
147        final boolean inlineObjects = true;
148        Architecture arch = new AMD64(computeFeatures(config), computeFlags(config));
149        return new TargetDescription(arch, true, stackFrameAlignment, implicitNullCheckLimit, inlineObjects);
150    }
151
152    protected HotSpotConstantReflectionProvider createConstantReflection(HotSpotJVMCIRuntimeProvider runtime) {
153        return new HotSpotConstantReflectionProvider(runtime);
154    }
155
156    protected RegisterConfig createRegisterConfig(AMD64HotSpotVMConfig config, TargetDescription target) {
157        return new AMD64HotSpotRegisterConfig(target, config.useCompressedOops, config.windowsOs);
158    }
159
160    protected HotSpotCodeCacheProvider createCodeCache(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target, RegisterConfig regConfig) {
161        return new HotSpotCodeCacheProvider(runtime, runtime.getConfig(), target, regConfig);
162    }
163
164    protected HotSpotMetaAccessProvider createMetaAccess(HotSpotJVMCIRuntimeProvider runtime) {
165        return new HotSpotMetaAccessProvider(runtime);
166    }
167
168    @Override
169    public String getArchitecture() {
170        return "AMD64";
171    }
172
173    @Override
174    public String toString() {
175        return "JVMCIBackend:" + getArchitecture();
176    }
177
178    @SuppressWarnings("try")
179    public JVMCIBackend createJVMCIBackend(HotSpotJVMCIRuntimeProvider runtime, JVMCIBackend host) {
180        assert host == null;
181        AMD64HotSpotVMConfig config = new AMD64HotSpotVMConfig(runtime.getConfigStore());
182        TargetDescription target = createTarget(config);
183
184        RegisterConfig regConfig;
185        HotSpotCodeCacheProvider codeCache;
186        ConstantReflectionProvider constantReflection;
187        HotSpotMetaAccessProvider metaAccess;
188        StackIntrospection stackIntrospection;
189        try (InitTimer t = timer("create providers")) {
190            try (InitTimer rt = timer("create MetaAccess provider")) {
191                metaAccess = createMetaAccess(runtime);
192            }
193            try (InitTimer rt = timer("create RegisterConfig")) {
194                regConfig = createRegisterConfig(config, target);
195            }
196            try (InitTimer rt = timer("create CodeCache provider")) {
197                codeCache = createCodeCache(runtime, target, regConfig);
198            }
199            try (InitTimer rt = timer("create ConstantReflection provider")) {
200                constantReflection = createConstantReflection(runtime);
201            }
202            try (InitTimer rt = timer("create StackIntrospection provider")) {
203                stackIntrospection = new HotSpotStackIntrospection(runtime);
204            }
205        }
206        try (InitTimer rt = timer("instantiate backend")) {
207            return createBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
208        }
209    }
210
211    protected JVMCIBackend createBackend(HotSpotMetaAccessProvider metaAccess, HotSpotCodeCacheProvider codeCache, ConstantReflectionProvider constantReflection,
212                    StackIntrospection stackIntrospection) {
213        return new JVMCIBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
214    }
215}
216