100 lines
3.1 KiB
C++
100 lines
3.1 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "instruction_set_features_riscv64.h"
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#include <fstream>
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#include <sstream>
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#include "android-base/strings.h"
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#include "base/logging.h"
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namespace art {
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// Basic feature set is rv64gc, aka rv64imafdc.
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constexpr uint32_t BasicFeatures() {
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return Riscv64InstructionSetFeatures::kExtGeneric | Riscv64InstructionSetFeatures::kExtCompressed;
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}
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Riscv64FeaturesUniquePtr Riscv64InstructionSetFeatures::FromVariant(
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const std::string& variant, std::string* error_msg ATTRIBUTE_UNUSED) {
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if (variant != "generic") {
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LOG(WARNING) << "Unexpected CPU variant for Riscv64 using defaults: " << variant;
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}
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return Riscv64FeaturesUniquePtr(new Riscv64InstructionSetFeatures(BasicFeatures()));
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}
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Riscv64FeaturesUniquePtr Riscv64InstructionSetFeatures::FromBitmap(uint32_t bitmap) {
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return Riscv64FeaturesUniquePtr(new Riscv64InstructionSetFeatures(bitmap));
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}
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Riscv64FeaturesUniquePtr Riscv64InstructionSetFeatures::FromCppDefines() {
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return Riscv64FeaturesUniquePtr(new Riscv64InstructionSetFeatures(BasicFeatures()));
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}
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Riscv64FeaturesUniquePtr Riscv64InstructionSetFeatures::FromCpuInfo() {
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UNIMPLEMENTED(WARNING);
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return FromCppDefines();
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}
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Riscv64FeaturesUniquePtr Riscv64InstructionSetFeatures::FromHwcap() {
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UNIMPLEMENTED(WARNING);
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return FromCppDefines();
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}
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Riscv64FeaturesUniquePtr Riscv64InstructionSetFeatures::FromAssembly() {
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UNIMPLEMENTED(WARNING);
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return FromCppDefines();
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}
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Riscv64FeaturesUniquePtr Riscv64InstructionSetFeatures::FromCpuFeatures() {
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UNIMPLEMENTED(WARNING);
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return FromCppDefines();
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}
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bool Riscv64InstructionSetFeatures::Equals(const InstructionSetFeatures* other) const {
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if (InstructionSet::kRiscv64 != other->GetInstructionSet()) {
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return false;
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}
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return bits_ == other->AsRiscv64InstructionSetFeatures()->bits_;
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}
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uint32_t Riscv64InstructionSetFeatures::AsBitmap() const { return bits_; }
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std::string Riscv64InstructionSetFeatures::GetFeatureString() const {
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std::string result = "rv64";
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if (bits_ & kExtGeneric) {
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result += "g";
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}
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if (bits_ & kExtCompressed) {
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result += "c";
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}
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if (bits_ & kExtVector) {
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result += "v";
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}
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return result;
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}
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std::unique_ptr<const InstructionSetFeatures>
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Riscv64InstructionSetFeatures::AddFeaturesFromSplitString(
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const std::vector<std::string>& features ATTRIBUTE_UNUSED,
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std::string* error_msg ATTRIBUTE_UNUSED) const {
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UNIMPLEMENTED(WARNING);
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return std::unique_ptr<const InstructionSetFeatures>(new Riscv64InstructionSetFeatures(bits_));
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}
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} // namespace art
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