157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe/* 257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * Copyright (C) 2014 The Android Open Source Project 357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * 457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * Licensed under the Apache License, Version 2.0 (the "License"); 557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * you may not use this file except in compliance with the License. 657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * You may obtain a copy of the License at 757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * 857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * http://www.apache.org/licenses/LICENSE-2.0 957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * 1057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * Unless required by applicable law or agreed to in writing, software 1157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * distributed under the License is distributed on an "AS IS" BASIS, 1257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * See the License for the specific language governing permissions and 1457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe * limitations under the License. 1557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe */ 1657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 1757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe#ifndef ART_RUNTIME_ARCH_MIPS64_INSTRUCTION_SET_FEATURES_MIPS64_H_ 1857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe#define ART_RUNTIME_ARCH_MIPS64_INSTRUCTION_SET_FEATURES_MIPS64_H_ 1957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 2057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe#include "arch/instruction_set_features.h" 2157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 2257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampenamespace art { 2357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 2457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe// Instruction set features relevant to the MIPS64 architecture. 2557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampeclass Mips64InstructionSetFeatures FINAL : public InstructionSetFeatures { 2657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe public: 2757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Process a CPU variant string like "r4000" and create InstructionSetFeatures. 2857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe static const Mips64InstructionSetFeatures* FromVariant(const std::string& variant, 2957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe std::string* error_msg); 3057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 3157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Parse a bitmap and create an InstructionSetFeatures. 3257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe static const Mips64InstructionSetFeatures* FromBitmap(uint32_t bitmap); 3357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 3457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Turn C pre-processor #defines into the equivalent instruction set features. 3557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe static const Mips64InstructionSetFeatures* FromCppDefines(); 3657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 3757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Process /proc/cpuinfo and use kRuntimeISA to produce InstructionSetFeatures. 3857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe static const Mips64InstructionSetFeatures* FromCpuInfo(); 3957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 4057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Process the auxiliary vector AT_HWCAP entry and use kRuntimeISA to produce 4157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // InstructionSetFeatures. 4257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe static const Mips64InstructionSetFeatures* FromHwcap(); 4357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 4457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Use assembly tests of the current runtime (ie kRuntimeISA) to determine the 4557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // InstructionSetFeatures. This works around kernel bugs in AT_HWCAP and /proc/cpuinfo. 4657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe static const Mips64InstructionSetFeatures* FromAssembly(); 4757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 4857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe bool Equals(const InstructionSetFeatures* other) const OVERRIDE; 4957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 5057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe InstructionSet GetInstructionSet() const OVERRIDE { 5157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe return kMips64; 5257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe } 5357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 5457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe uint32_t AsBitmap() const OVERRIDE; 5557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 5657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe std::string GetFeatureString() const OVERRIDE; 5757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 5857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe virtual ~Mips64InstructionSetFeatures() {} 5957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 6057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe protected: 6157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Parse a vector of the form "fpu32", "mips2" adding these to a new Mips64InstructionSetFeatures. 6257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe virtual const InstructionSetFeatures* 6357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe AddFeaturesFromSplitString(const bool smp, const std::vector<std::string>& features, 6457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe std::string* error_msg) const OVERRIDE; 6557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 6657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe private: 6757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe explicit Mips64InstructionSetFeatures(bool smp) : InstructionSetFeatures(smp) { 6857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe } 6957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 7057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe // Bitmap positions for encoding features as a bitmap. 7157b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe enum { 7257b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe kSmpBitfield = 1, 7357b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe }; 7457b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 7557b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe DISALLOW_COPY_AND_ASSIGN(Mips64InstructionSetFeatures); 7657b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe}; 7757b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 7857b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe} // namespace art 7957b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe 8057b34294758e9c00993913ebe43c7ee4698a5cc6Andreas Gampe#endif // ART_RUNTIME_ARCH_MIPS64_INSTRUCTION_SET_FEATURES_MIPS64_H_ 81