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https://git.eden-emu.dev/eden-emu/eden.git
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[dynarmic,loongarch64] Add initial loongarch64 framework
This commit is contained in:
Yang Liu
crueter
parent
aadcc24aac
commit
ffc7910cd3
11 changed files with 475 additions and 34 deletions
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@ -299,10 +299,18 @@ if ("loongarch64" IN_LIST ARCHITECTURE)
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target_link_libraries(dynarmic PRIVATE lagoon::lagoon)
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target_sources(dynarmic PRIVATE
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backend/loongarch64/exclusive_monitor.cpp
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backend/loongarch64/a32_jitstate.cpp
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backend/loongarch64/a32_jitstate.h
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backend/loongarch64/code_block.h
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backend/loongarch64/emit_loongarch64.cpp
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backend/loongarch64/emit_loongarch64.h
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backend/loongarch64/a32_address_space.cpp
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backend/loongarch64/a32_address_space.h
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backend/loongarch64/a32_interface.cpp
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backend/loongarch64/a64_interface.cpp
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backend/loongarch64/exclusive_monitor.cpp
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backend/loongarch64/code_block.h
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backend/loongarch64/lagoon_cpp.h
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common/spin_lock_loongarch64.cpp
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)
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@ -0,0 +1,119 @@
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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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#include "dynarmic/backend/loongarch64/a32_address_space.h"
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#include "common/assert.h"
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#include "dynarmic/backend/loongarch64/a32_jitstate.h"
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#include "dynarmic/backend/loongarch64/emit_loongarch64.h"
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#include "dynarmic/frontend/A32/a32_location_descriptor.h"
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#include "dynarmic/frontend/A32/translate/a32_translate.h"
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#include "dynarmic/ir/opt_passes.h"
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namespace Dynarmic::Backend::LoongArch64 {
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A32AddressSpace::A32AddressSpace(const A32::UserConfig& conf)
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: conf(conf)
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, cb(conf.code_cache_size) {
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EmitPrelude();
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}
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void A32AddressSpace::GenerateIR(IR::Block& ir_block, IR::LocationDescriptor descriptor) const {
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A32::Translate(ir_block, A32::LocationDescriptor{descriptor}, conf.callbacks, {conf.arch_version, conf.define_unpredictable_behaviour, conf.hook_hint_instructions});
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Optimization::Optimize(ir_block, conf, {.sha256 = true});
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}
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CodePtr A32AddressSpace::Get(IR::LocationDescriptor descriptor) {
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if (const auto iter = block_entries.find(descriptor.Value()); iter != block_entries.end()) {
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return iter->second;
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}
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return nullptr;
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}
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CodePtr A32AddressSpace::GetOrEmit(IR::LocationDescriptor descriptor) {
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if (CodePtr block_entry = Get(descriptor)) {
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return block_entry;
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}
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IR::Block ir_block{descriptor};
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GenerateIR(ir_block, descriptor);
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const EmittedBlockInfo block_info = Emit(std::move(ir_block));
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block_infos.insert_or_assign(descriptor.Value(), block_info);
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block_entries.insert_or_assign(descriptor.Value(), block_info.entry_point);
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return block_info.entry_point;
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}
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void A32AddressSpace::ClearCache() {
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block_entries.clear();
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block_infos.clear();
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SetCursorPtr(prelude_info.end_of_prelude);
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}
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void A32AddressSpace::EmitPrelude() {
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prelude_info.run_code = GetCursorPtr<PreludeInfo::RunCodeFuncType>();
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// Save all GPRs except sp (r3) and tp (r2)
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la_addi_d(&cb.as, LA_SP, LA_SP, -64 * 8);
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for (u32 i = 1; i < 32; i++) {
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if (i == LA_SP || i == LA_TP)
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continue;
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la_st_d(&cb.as, static_cast<la_gpr_t>(i), LA_SP, static_cast<int32_t>(i * 8));
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}
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// Jump to block entry (a0)
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la_jr(&cb.as, LA_A0);
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prelude_info.return_from_run_code = GetCursorPtr<CodePtr>();
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// Restore all GPRs except sp and tp
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for (u32 i = 1; i < 32; i++) {
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if (i == LA_SP || i == LA_TP)
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continue;
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la_ld_d(&cb.as, static_cast<la_gpr_t>(i), LA_SP, static_cast<int32_t>(i * 8));
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}
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la_addi_d(&cb.as, LA_SP, LA_SP, 64 * 8);
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la_ret(&cb.as);
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prelude_info.end_of_prelude = GetCursorPtr<CodePtr>();
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}
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void A32AddressSpace::SetCursorPtr(CodePtr ptr) {
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cb.as.cursor = reinterpret_cast<uint8_t*>(ptr);
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}
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size_t A32AddressSpace::GetRemainingSize() {
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return la_get_remaining_buffer_size(&cb.as);
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}
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EmittedBlockInfo A32AddressSpace::Emit(IR::Block block) {
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if (GetRemainingSize() < 1024 * 1024) {
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ClearCache();
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}
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EmittedBlockInfo block_info = EmitLoongArch64(cb.as, std::move(block));
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Link(block_info);
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return block_info;
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}
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void A32AddressSpace::Link(EmittedBlockInfo& block_info) {
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for (const auto& reloc : block_info.relocations) {
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uint8_t* patch_location = reinterpret_cast<uint8_t*>(block_info.entry_point) + reloc.code_offset;
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switch (reloc.target) {
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case LinkTarget::ReturnFromRunCode: {
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std::ptrdiff_t off = reinterpret_cast<uint8_t*>(prelude_info.return_from_run_code) - patch_location;
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lagoon_assembler_t patch_as;
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la_init_assembler(&patch_as, patch_location, 4);
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la_b(&patch_as, static_cast<int32_t>(off));
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break;
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}
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default:
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ASSERT(false && "Invalid relocation target");
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}
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}
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}
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} // namespace Dynarmic::Backend::LoongArch64
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@ -0,0 +1,68 @@
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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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#pragma once
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#include "dynarmic/backend/loongarch64/lagoon_cpp.h"
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#include <ankerl/unordered_dense.h>
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#include "dynarmic/backend/loongarch64/code_block.h"
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#include "dynarmic/backend/loongarch64/emit_loongarch64.h"
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#include "dynarmic/interface/A32/config.h"
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#include "dynarmic/interface/halt_reason.h"
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#include "dynarmic/ir/basic_block.h"
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#include "dynarmic/ir/location_descriptor.h"
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namespace Dynarmic::Backend::LoongArch64 {
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struct A32JitState;
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class A32AddressSpace final {
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public:
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explicit A32AddressSpace(const A32::UserConfig& conf);
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void GenerateIR(IR::Block& ir_block, IR::LocationDescriptor descriptor) const;
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CodePtr Get(IR::LocationDescriptor descriptor);
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CodePtr GetOrEmit(IR::LocationDescriptor descriptor);
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void ClearCache();
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private:
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void EmitPrelude();
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template<typename T>
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T GetCursorPtr() {
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return reinterpret_cast<T>(cb.as.cursor);
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}
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template<typename T>
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T GetCursorPtr() const {
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return reinterpret_cast<T>(cb.as.cursor);
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}
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template<typename T>
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T GetMemPtr() const {
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return cb.ptr<T>();
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}
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void SetCursorPtr(CodePtr ptr);
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size_t GetRemainingSize();
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EmittedBlockInfo Emit(IR::Block block);
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void Link(EmittedBlockInfo& block_info);
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const A32::UserConfig conf;
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CodeBlock cb;
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ankerl::unordered_dense::map<u64, CodePtr> block_entries;
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ankerl::unordered_dense::map<u64, EmittedBlockInfo> block_infos;
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public:
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struct PreludeInfo {
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CodePtr end_of_prelude;
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using RunCodeFuncType = HaltReason (*)(CodePtr entry_point, A32JitState* context, volatile u32* halt_reason);
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RunCodeFuncType run_code;
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CodePtr return_from_run_code;
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} prelude_info;
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};
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} // namespace Dynarmic::Backend::LoongArch64
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@ -1,101 +1,134 @@
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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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#include <array>
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#include <memory>
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#include <string>
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#include <utility>
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#include <mutex>
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#include <boost/icl/interval_set.hpp>
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "dynarmic/backend/loongarch64/a32_address_space.h"
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#include "dynarmic/backend/loongarch64/a32_jitstate.h"
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#include "dynarmic/common/atomic.h"
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#include "dynarmic/frontend/A32/a32_location_descriptor.h"
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#include "dynarmic/interface/A32/a32.h"
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namespace Dynarmic::A32 {
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using namespace Backend::LoongArch64;
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struct Jit::Impl final {
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explicit Impl(UserConfig conf_) : conf(std::move(conf_)) {}
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Impl(Jit* jit_interface, A32::UserConfig conf)
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: jit_interface(jit_interface)
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, conf(conf)
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, current_address_space(conf) {}
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HaltReason Run() {
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UNIMPLEMENTED();
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return halt_reason;
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ASSERT(!jit_interface->is_executing);
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jit_interface->is_executing = true;
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const auto location_descriptor = current_state.GetLocationDescriptor();
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const auto entry_point = current_address_space.GetOrEmit(location_descriptor);
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current_address_space.prelude_info.run_code(entry_point, ¤t_state, &halt_reason);
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HaltReason hr = static_cast<HaltReason>(Atomic::Exchange(&halt_reason, 0));
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jit_interface->is_executing = false;
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return hr;
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}
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HaltReason Step() {
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UNIMPLEMENTED();
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return halt_reason | HaltReason::Step;
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ASSERT(!jit_interface->is_executing);
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jit_interface->is_executing = true;
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const auto location_descriptor = A32::LocationDescriptor{current_state.GetLocationDescriptor()}.SetSingleStepping(true);
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const auto entry_point = current_address_space.GetOrEmit(location_descriptor);
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current_address_space.prelude_info.run_code(entry_point, ¤t_state, &halt_reason);
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HaltReason hr = static_cast<HaltReason>(Atomic::Exchange(&halt_reason, 0));
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jit_interface->is_executing = false;
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return hr;
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}
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void ClearCache() {
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std::unique_lock lock{invalidation_mutex};
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invalidate_entire_cache = true;
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HaltExecution(HaltReason::CacheInvalidation);
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}
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void InvalidateCacheRange(u32, std::size_t) {
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void InvalidateCacheRange(u32 start_address, size_t length) {
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std::unique_lock lock{invalidation_mutex};
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invalid_cache_ranges.add(boost::icl::discrete_interval<u32>::closed(start_address, static_cast<u32>(start_address + length - 1)));
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HaltExecution(HaltReason::CacheInvalidation);
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}
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void Reset() {
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regs = {};
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ext_regs = {};
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cpsr = 0;
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fpscr = 0;
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halt_reason = {};
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current_state = {};
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}
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void HaltExecution(HaltReason hr) {
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halt_reason |= hr;
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Atomic::Or(&halt_reason, static_cast<u32>(hr));
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}
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void ClearHalt(HaltReason hr) {
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halt_reason &= ~hr;
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Atomic::And(&halt_reason, ~static_cast<u32>(hr));
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}
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std::array<u32, 16>& Regs() {
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return regs;
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return current_state.regs;
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}
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const std::array<u32, 16>& Regs() const {
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return regs;
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return current_state.regs;
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}
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std::array<u32, 64>& ExtRegs() {
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return ext_regs;
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return current_state.ext_regs;
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}
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const std::array<u32, 64>& ExtRegs() const {
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return ext_regs;
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return current_state.ext_regs;
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}
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u32 Cpsr() const {
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return cpsr;
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return current_state.Cpsr();
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}
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void SetCpsr(u32 value) {
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cpsr = value;
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current_state.SetCpsr(value);
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}
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u32 Fpscr() const {
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return fpscr;
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return current_state.Fpscr();
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}
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void SetFpscr(u32 value) {
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fpscr = value;
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current_state.SetFpscr(value);
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}
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void ClearExclusiveState() {}
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void ClearExclusiveState() {
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current_state.exclusive_state = false;
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}
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std::string Disassemble() const {
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return {};
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}
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UserConfig conf;
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std::array<u32, 16> regs{};
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std::array<u32, 64> ext_regs{};
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u32 cpsr = 0;
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u32 fpscr = 0;
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HaltReason halt_reason{};
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private:
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Jit* jit_interface;
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A32::UserConfig conf;
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A32JitState current_state{};
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A32AddressSpace current_address_space;
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volatile u32 halt_reason = 0;
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std::mutex invalidation_mutex;
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boost::icl::interval_set<u32> invalid_cache_ranges;
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bool invalidate_entire_cache = false;
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};
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Jit::Jit(UserConfig conf) : impl(std::make_unique<Impl>(std::move(conf))) {}
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Jit::Jit(UserConfig conf)
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: impl(std::make_unique<Impl>(this, conf)) {}
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Jit::~Jit() = default;
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@ -111,7 +144,7 @@ void Jit::ClearCache() {
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impl->ClearCache();
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}
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void Jit::InvalidateCacheRange(u32 start_address, std::size_t length) {
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void Jit::InvalidateCacheRange(u32 start_address, size_t length) {
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impl->InvalidateCacheRange(start_address, length);
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}
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@ -0,0 +1,57 @@
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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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#include "dynarmic/backend/loongarch64/a32_jitstate.h"
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#include "dynarmic/mcl/bit.hpp"
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#include "common/common_types.h"
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namespace Dynarmic::Backend::LoongArch64 {
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u32 A32JitState::Cpsr() const {
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u32 cpsr = 0;
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cpsr |= cpsr_nzcv;
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cpsr |= cpsr_q;
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cpsr |= mcl::bit::get_bit<31>(cpsr_ge) ? 1 << 19 : 0;
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cpsr |= mcl::bit::get_bit<23>(cpsr_ge) ? 1 << 18 : 0;
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cpsr |= mcl::bit::get_bit<15>(cpsr_ge) ? 1 << 17 : 0;
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cpsr |= mcl::bit::get_bit<7>(cpsr_ge) ? 1 << 16 : 0;
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cpsr |= mcl::bit::get_bit<1>(upper_location_descriptor) ? 1 << 9 : 0;
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cpsr |= mcl::bit::get_bit<0>(upper_location_descriptor) ? 1 << 5 : 0;
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cpsr |= static_cast<u32>(upper_location_descriptor & 0b11111100'00000000);
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cpsr |= static_cast<u32>(upper_location_descriptor & 0b00000011'00000000) << 17;
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cpsr |= cpsr_jaifm;
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return cpsr;
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}
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void A32JitState::SetCpsr(u32 cpsr) {
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cpsr_nzcv = cpsr & 0xF0000000;
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cpsr_q = cpsr & (1 << 27);
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cpsr_ge = 0;
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cpsr_ge |= mcl::bit::get_bit<19>(cpsr) ? 0xFF000000 : 0;
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cpsr_ge |= mcl::bit::get_bit<18>(cpsr) ? 0x00FF0000 : 0;
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cpsr_ge |= mcl::bit::get_bit<17>(cpsr) ? 0x0000FF00 : 0;
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cpsr_ge |= mcl::bit::get_bit<16>(cpsr) ? 0x000000FF : 0;
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upper_location_descriptor &= 0xFFFF0000;
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upper_location_descriptor |= mcl::bit::get_bit<9>(cpsr) ? 2 : 0;
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upper_location_descriptor |= mcl::bit::get_bit<5>(cpsr) ? 1 : 0;
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upper_location_descriptor |= (cpsr >> 0) & 0b11111100'00000000;
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upper_location_descriptor |= (cpsr >> 17) & 0b00000011'00000000;
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cpsr_jaifm = cpsr & 0x010001DF;
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}
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constexpr u32 FPCR_MASK = A32::LocationDescriptor::FPSCR_MODE_MASK;
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constexpr u32 FPSR_MASK = 0x0800009F;
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u32 A32JitState::Fpscr() const {
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return (upper_location_descriptor & FPCR_MASK) | fpsr | fpsr_nzcv;
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}
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void A32JitState::SetFpscr(u32 fpscr) {
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fpsr = fpscr & FPSR_MASK;
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fpsr_nzcv = fpscr & 0xF0000000;
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upper_location_descriptor = (upper_location_descriptor & 0x0000ffff) | (fpscr & FPCR_MASK);
|
||||
}
|
||||
|
||||
} // namespace Dynarmic::Backend::LoongArch64
|
||||
43
src/dynarmic/src/dynarmic/backend/loongarch64/a32_jitstate.h
Normal file
43
src/dynarmic/src/dynarmic/backend/loongarch64/a32_jitstate.h
Normal file
|
|
@ -0,0 +1,43 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <array>
|
||||
|
||||
#include "common/common_types.h"
|
||||
|
||||
#include "dynarmic/frontend/A32/a32_location_descriptor.h"
|
||||
#include "dynarmic/ir/location_descriptor.h"
|
||||
|
||||
namespace Dynarmic::Backend::LoongArch64 {
|
||||
|
||||
struct A32JitState {
|
||||
u32 cpsr_nzcv = 0;
|
||||
u32 cpsr_q = 0;
|
||||
u32 cpsr_jaifm = 0;
|
||||
u32 cpsr_ge = 0;
|
||||
|
||||
u32 fpsr = 0;
|
||||
u32 fpsr_nzcv = 0;
|
||||
|
||||
std::array<u32, 16> regs{};
|
||||
|
||||
u32 upper_location_descriptor;
|
||||
|
||||
alignas(16) std::array<u32, 64> ext_regs{};
|
||||
|
||||
u32 exclusive_state = 0;
|
||||
|
||||
u32 Cpsr() const;
|
||||
void SetCpsr(u32 cpsr);
|
||||
|
||||
u32 Fpscr() const;
|
||||
void SetFpscr(u32 fpscr);
|
||||
|
||||
IR::LocationDescriptor GetLocationDescriptor() const {
|
||||
return IR::LocationDescriptor{regs[15] | (static_cast<u64>(upper_location_descriptor) << 32)};
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace Dynarmic::Backend::LoongArch64
|
||||
|
|
@ -4,20 +4,44 @@
|
|||
#pragma once
|
||||
|
||||
#include <cstdint>
|
||||
#include <new>
|
||||
#include <type_traits>
|
||||
|
||||
#include <sys/mman.h>
|
||||
#include "dynarmic/backend/loongarch64/lagoon_cpp.h"
|
||||
|
||||
#include "common/assert.h"
|
||||
#include "common/common_types.h"
|
||||
|
||||
namespace Dynarmic::Backend::LoongArch64 {
|
||||
|
||||
class CodeBlock {
|
||||
public:
|
||||
explicit CodeBlock(std::size_t size) noexcept
|
||||
: memsize(size) {
|
||||
mem = static_cast<u8*>(mmap(nullptr, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE, -1, 0));
|
||||
ASSERT(mem != nullptr);
|
||||
la_init_assembler(&as, mem, size);
|
||||
}
|
||||
|
||||
~CodeBlock() noexcept {
|
||||
if (mem == nullptr) {
|
||||
return;
|
||||
}
|
||||
munmap(mem, memsize);
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
T ptr() const noexcept {
|
||||
static_assert(std::is_pointer_v<T> || std::is_same_v<T, std::uintptr_t> || std::is_same_v<T, std::intptr_t>);
|
||||
return reinterpret_cast<T>(mem);
|
||||
}
|
||||
|
||||
lagoon_assembler_t as{};
|
||||
|
||||
private:
|
||||
u8* mem = nullptr;
|
||||
size_t memsize = 0;
|
||||
};
|
||||
|
||||
} // namespace Dynarmic::Backend::LoongArch64
|
||||
|
|
|
|||
|
|
@ -0,0 +1,33 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
#include "dynarmic/backend/loongarch64/emit_loongarch64.h"
|
||||
|
||||
#include "dynarmic/backend/loongarch64/a32_jitstate.h"
|
||||
#include "dynarmic/ir/basic_block.h"
|
||||
|
||||
namespace Dynarmic::Backend::LoongArch64 {
|
||||
|
||||
EmittedBlockInfo EmitLoongArch64(lagoon_assembler_t& as, [[maybe_unused]] IR::Block block) {
|
||||
EmittedBlockInfo ebi;
|
||||
ebi.entry_point = reinterpret_cast<CodePtr>(as.cursor);
|
||||
|
||||
// Dummy code: set regs[0] = 8, regs[1] = 2, regs[15] = 2
|
||||
la_addi_d(&as, LA_A0, LA_ZERO, 8);
|
||||
la_st_w(&as, LA_A0, LA_A1, static_cast<int32_t>(offsetof(A32JitState, regs) + 0 * sizeof(u32)));
|
||||
|
||||
la_addi_d(&as, LA_A0, LA_ZERO, 2);
|
||||
la_st_w(&as, LA_A0, LA_A1, static_cast<int32_t>(offsetof(A32JitState, regs) + 1 * sizeof(u32)));
|
||||
la_st_w(&as, LA_A0, LA_A1, static_cast<int32_t>(offsetof(A32JitState, regs) + 15 * sizeof(u32)));
|
||||
|
||||
ebi.relocations.push_back(Relocation{
|
||||
reinterpret_cast<CodePtr>(as.cursor) - ebi.entry_point,
|
||||
LinkTarget::ReturnFromRunCode
|
||||
});
|
||||
la_nop(&as);
|
||||
|
||||
ebi.size = reinterpret_cast<CodePtr>(as.cursor) - ebi.entry_point;
|
||||
return ebi;
|
||||
}
|
||||
|
||||
} // namespace Dynarmic::Backend::LoongArch64
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <cstddef>
|
||||
#include <vector>
|
||||
|
||||
#include "dynarmic/backend/loongarch64/lagoon_cpp.h"
|
||||
|
||||
#include "common/common_types.h"
|
||||
|
||||
namespace Dynarmic::IR {
|
||||
class Block;
|
||||
class LocationDescriptor;
|
||||
} // namespace Dynarmic::IR
|
||||
|
||||
namespace Dynarmic::Backend::LoongArch64 {
|
||||
|
||||
using CodePtr = std::byte*;
|
||||
|
||||
enum class LinkTarget {
|
||||
ReturnFromRunCode,
|
||||
};
|
||||
|
||||
struct Relocation {
|
||||
std::ptrdiff_t code_offset;
|
||||
LinkTarget target;
|
||||
};
|
||||
|
||||
struct EmittedBlockInfo {
|
||||
CodePtr entry_point;
|
||||
size_t size;
|
||||
size_t cycle_count;
|
||||
std::vector<Relocation> relocations;
|
||||
};
|
||||
|
||||
EmittedBlockInfo EmitLoongArch64(lagoon_assembler_t& as, IR::Block block);
|
||||
|
||||
} // namespace Dynarmic::Backend::LoongArch64
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
#pragma once
|
||||
|
||||
extern "C" {
|
||||
#include <lagoon.h>
|
||||
}
|
||||
|
|
@ -36,6 +36,14 @@ inline void And(volatile u32* ptr, u32 value) {
|
|||
#endif
|
||||
}
|
||||
|
||||
inline u32 Exchange(volatile u32* ptr, u32 value) {
|
||||
#ifdef _MSC_VER
|
||||
return static_cast<u32>(_InterlockedExchange(reinterpret_cast<volatile long*>(ptr), value));
|
||||
#else
|
||||
return __atomic_exchange_n(ptr, value, __ATOMIC_SEQ_CST);
|
||||
#endif
|
||||
}
|
||||
|
||||
inline void Barrier() {
|
||||
#ifdef _MSC_VER
|
||||
_ReadWriteBarrier();
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue