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arm_dynarmic: Remove dependence on interpreter

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This commit is contained in:
MerryMage 2020-04-06 17:31:12 +01:00
parent e04590a06d
commit 8b7b6e9f74
6 changed files with 73 additions and 69 deletions
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11
src/citra_qt/debugger/registers.cpp
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@ -103,8 +103,6 @@ void RegistersWidget::OnEmulationStopping() {
vfp_system_registers->child(0)->setText(1, QString{});
vfp_system_registers->child(1)->setText(1, QString{});
vfp_system_registers->child(2)->setText(1, QString{});
vfp_system_registers->child(3)->setText(1, QString{});
setEnabled(false);
}
@ -188,16 +186,12 @@ void RegistersWidget::CreateVFPSystemRegisterChildren() {
vfp_system_registers->addChild(fpscr);
vfp_system_registers->addChild(fpexc);
vfp_system_registers->addChild(new QTreeWidgetItem(QStringList(QStringLiteral("FPINST"))));
vfp_system_registers->addChild(new QTreeWidgetItem(QStringList(QStringLiteral("FPINST2"))));
}
void RegistersWidget::UpdateVFPSystemRegisterValues() {
// Todo: handle all cores
const u32 fpscr_val = Core::GetCore(0).GetVFPSystemReg(VFP_FPSCR);
const u32 fpexc_val = Core::GetCore(0).GetVFPSystemReg(VFP_FPEXC);
const u32 fpinst_val = Core::GetCore(0).GetVFPSystemReg(VFP_FPINST);
const u32 fpinst2_val = Core::GetCore(0).GetVFPSystemReg(VFP_FPINST2);
QTreeWidgetItem* const fpscr = vfp_system_registers->child(0);
fpscr->setText(1, QStringLiteral("0x%1").arg(fpscr_val, 8, 16, QLatin1Char('0')));
@ -237,9 +231,4 @@ void RegistersWidget::UpdateVFPSystemRegisterValues() {
fpexc->child(5)->setText(1, QString::number((fpexc_val >> 28) & 1));
fpexc->child(6)->setText(1, QString::number((fpexc_val >> 30) & 1));
fpexc->child(7)->setText(1, QString::number((fpexc_val >> 31) & 1));
vfp_system_registers->child(2)->setText(
1, QStringLiteral("0x%1").arg(fpinst_val, 8, 16, QLatin1Char('0')));
vfp_system_registers->child(3)->setText(
1, QStringLiteral("0x%1").arg(fpinst2_val, 8, 16, QLatin1Char('0')));
}

91
src/core/arm/dynarmic/arm_dynarmic.cpp
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@ -9,7 +9,6 @@
#include "common/microprofile.h"
#include "core/arm/dynarmic/arm_dynarmic.h"
#include "core/arm/dynarmic/arm_dynarmic_cp15.h"
#include "core/arm/dyncom/arm_dyncom_interpreter.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/gdbstub/gdbstub.h"
@ -102,24 +101,9 @@ public:
}
void InterpreterFallback(VAddr pc, std::size_t num_instructions) override {
parent.interpreter_state->Reg = parent.jit->Regs();
parent.interpreter_state->Cpsr = parent.jit->Cpsr();
parent.interpreter_state->Reg[15] = pc;
parent.interpreter_state->ExtReg = parent.jit->ExtRegs();
parent.interpreter_state->VFP[VFP_FPSCR] = parent.jit->Fpscr();
parent.interpreter_state->NumInstrsToExecute = num_instructions;
InterpreterMainLoop(parent.interpreter_state.get());
bool is_thumb = (parent.interpreter_state->Cpsr & (1 << 5)) != 0;
parent.interpreter_state->Reg[15] &= (is_thumb ? 0xFFFFFFFE : 0xFFFFFFFC);
parent.jit->Regs() = parent.interpreter_state->Reg;
parent.jit->SetCpsr(parent.interpreter_state->Cpsr);
parent.jit->ExtRegs() = parent.interpreter_state->ExtReg;
parent.jit->SetFpscr(parent.interpreter_state->VFP[VFP_FPSCR]);
parent.interpreter_state->ServeBreak();
// Should never happen.
UNREACHABLE_MSG("InterpeterFallback reached with pc = 0x{:08x}, code = 0x{:08x}, num = {}",
pc, MemoryReadCode(pc), num_instructions);
}
void CallSVC(std::uint32_t swi) override {
@ -135,11 +119,7 @@ public:
if (GDBStub::IsConnected()) {
parent.jit->HaltExecution();
parent.SetPC(pc);
Kernel::Thread* thread =
parent.system.Kernel().GetCurrentThreadManager().GetCurrentThread();
parent.SaveContext(thread->context);
GDBStub::Break();
GDBStub::SendTrap(thread, 5);
parent.ServeBreak();
return;
}
break;
@ -169,12 +149,10 @@ public:
Memory::MemorySystem& memory;
};
ARM_Dynarmic::ARM_Dynarmic(Core::System* system, Memory::MemorySystem& memory,
PrivilegeMode initial_mode, u32 id,
ARM_Dynarmic::ARM_Dynarmic(Core::System* system, Memory::MemorySystem& memory, u32 id,
std::shared_ptr<Core::Timing::Timer> timer)
: ARM_Interface(id, timer), system(*system), memory(memory),
cb(std::make_unique<DynarmicUserCallbacks>(*this)) {
interpreter_state = std::make_shared<ARMul_State>(system, memory, initial_mode);
PageTableChanged();
}
@ -190,7 +168,11 @@ void ARM_Dynarmic::Run() {
}
void ARM_Dynarmic::Step() {
cb->InterpreterFallback(jit->Regs()[15], 1);
jit->Step();
if (GDBStub::IsConnected()) {
ServeBreak();
}
}
void ARM_Dynarmic::SetPC(u32 pc) {
@ -218,21 +200,25 @@ void ARM_Dynarmic::SetVFPReg(int index, u32 value) {
}
u32 ARM_Dynarmic::GetVFPSystemReg(VFPSystemRegister reg) const {
if (reg == VFP_FPSCR) {
switch (reg) {
case VFP_FPSCR:
return jit->Fpscr();
case VFP_FPEXC:
return fpexc;
}
// Dynarmic does not implement and/or expose other VFP registers, fallback to interpreter state
return interpreter_state->VFP[reg];
UNREACHABLE_MSG("Unknown VFP system register: {}", static_cast<size_t>(reg));
}
void ARM_Dynarmic::SetVFPSystemReg(VFPSystemRegister reg, u32 value) {
if (reg == VFP_FPSCR) {
switch (reg) {
case VFP_FPSCR:
jit->SetFpscr(value);
return;
case VFP_FPEXC:
fpexc = value;
return;
}
// Dynarmic does not implement and/or expose other VFP registers, fallback to interpreter state
interpreter_state->VFP[reg] = value;
UNREACHABLE_MSG("Unknown VFP system register: {}", static_cast<size_t>(reg));
}
u32 ARM_Dynarmic::GetCPSR() const {
@ -244,11 +230,25 @@ void ARM_Dynarmic::SetCPSR(u32 cpsr) {
}
u32 ARM_Dynarmic::GetCP15Register(CP15Register reg) {
return interpreter_state->CP15[reg];
switch (reg) {
case CP15_THREAD_UPRW:
return cp15_state.cp15_thread_uprw;
case CP15_THREAD_URO:
return cp15_state.cp15_thread_uro;
}
UNREACHABLE_MSG("Unknown CP15 register: {}", static_cast<size_t>(reg));
}
void ARM_Dynarmic::SetCP15Register(CP15Register reg, u32 value) {
interpreter_state->CP15[reg] = value;
switch (reg) {
case CP15_THREAD_UPRW:
cp15_state.cp15_thread_uprw = value;
return;
case CP15_THREAD_URO:
cp15_state.cp15_thread_uro = value;
return;
}
UNREACHABLE_MSG("Unknown CP15 register: {}", static_cast<size_t>(reg));
}
std::unique_ptr<ARM_Interface::ThreadContext> ARM_Dynarmic::NewContext() const {
@ -260,7 +260,7 @@ void ARM_Dynarmic::SaveContext(const std::unique_ptr<ThreadContext>& arg) {
ASSERT(ctx);
jit->SaveContext(ctx->ctx);
ctx->fpexc = interpreter_state->VFP[VFP_FPEXC];
ctx->fpexc = fpexc;
}
void ARM_Dynarmic::LoadContext(const std::unique_ptr<ThreadContext>& arg) {
@ -268,7 +268,7 @@ void ARM_Dynarmic::LoadContext(const std::unique_ptr<ThreadContext>& arg) {
ASSERT(ctx);
jit->LoadContext(ctx->ctx);
interpreter_state->VFP[VFP_FPEXC] = ctx->fpexc;
fpexc = ctx->fpexc;
}
void ARM_Dynarmic::PrepareReschedule() {
@ -278,11 +278,9 @@ void ARM_Dynarmic::PrepareReschedule() {
}
void ARM_Dynarmic::ClearInstructionCache() {
// TODO: Clear interpreter cache when appropriate.
for (const auto& j : jits) {
j.second->ClearCache();
}
interpreter_state->instruction_cache.clear();
}
void ARM_Dynarmic::InvalidateCacheRange(u32 start_address, std::size_t length) {
@ -303,11 +301,18 @@ void ARM_Dynarmic::PageTableChanged() {
jits.emplace(current_page_table, std::move(new_jit));
}
void ARM_Dynarmic::ServeBreak() {
Kernel::Thread* thread = system.Kernel().GetCurrentThreadManager().GetCurrentThread();
SaveContext(thread->context);
GDBStub::Break();
GDBStub::SendTrap(thread, 5);
}
std::unique_ptr<Dynarmic::A32::Jit> ARM_Dynarmic::MakeJit() {
Dynarmic::A32::UserConfig config;
config.callbacks = cb.get();
config.page_table = &current_page_table->pointers;
config.coprocessors[15] = std::make_shared<DynarmicCP15>(interpreter_state);
config.coprocessors[15] = std::make_shared<DynarmicCP15>(cp15_state);
config.define_unpredictable_behaviour = true;
return std::make_unique<Dynarmic::A32::Jit>(config);
}

12
src/core/arm/dynarmic/arm_dynarmic.h
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@ -9,7 +9,7 @@
#include <dynarmic/A32/a32.h>
#include "common/common_types.h"
#include "core/arm/arm_interface.h"
#include "core/arm/skyeye_common/armstate.h"
#include "core/arm/dynarmic/arm_dynarmic_cp15.h"
namespace Memory {
struct PageTable;
@ -24,8 +24,8 @@ class DynarmicUserCallbacks;
class ARM_Dynarmic final : public ARM_Interface {
public:
ARM_Dynarmic(Core::System* system, Memory::MemorySystem& memory, PrivilegeMode initial_mode,
u32 id, std::shared_ptr<Core::Timing::Timer> timer);
ARM_Dynarmic(Core::System* system, Memory::MemorySystem& memory, u32 id,
std::shared_ptr<Core::Timing::Timer> timer);
~ARM_Dynarmic() override;
void Run() override;
@ -55,14 +55,18 @@ public:
void PageTableChanged() override;
private:
void ServeBreak();
friend class DynarmicUserCallbacks;
Core::System& system;
Memory::MemorySystem& memory;
std::unique_ptr<DynarmicUserCallbacks> cb;
std::unique_ptr<Dynarmic::A32::Jit> MakeJit();
u32 fpexc = 0;
CP15State cp15_state;
Dynarmic::A32::Jit* jit = nullptr;
Memory::PageTable* current_page_table = nullptr;
std::map<Memory::PageTable*, std::unique_ptr<Dynarmic::A32::Jit>> jits;
std::shared_ptr<ARMul_State> interpreter_state;
};

14
src/core/arm/dynarmic/arm_dynarmic_cp15.cpp
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@ -10,7 +10,7 @@ using Callback = Dynarmic::A32::Coprocessor::Callback;
using CallbackOrAccessOneWord = Dynarmic::A32::Coprocessor::CallbackOrAccessOneWord;
using CallbackOrAccessTwoWords = Dynarmic::A32::Coprocessor::CallbackOrAccessTwoWords;
DynarmicCP15::DynarmicCP15(const std::shared_ptr<ARMul_State>& state) : interpreter_state(state) {}
DynarmicCP15::DynarmicCP15(CP15State& state) : state(state) {}
DynarmicCP15::~DynarmicCP15() = default;
@ -26,24 +26,24 @@ CallbackOrAccessOneWord DynarmicCP15::CompileSendOneWord(bool two, unsigned opc1
if (!two && CRn == CoprocReg::C7 && opc1 == 0 && CRm == CoprocReg::C5 && opc2 == 4) {
// This is a dummy write, we ignore the value written here.
return &interpreter_state->CP15[CP15_FLUSH_PREFETCH_BUFFER];
return &state.cp15_flush_prefetch_buffer;
}
if (!two && CRn == CoprocReg::C7 && opc1 == 0 && CRm == CoprocReg::C10) {
switch (opc2) {
case 4:
// This is a dummy write, we ignore the value written here.
return &interpreter_state->CP15[CP15_DATA_SYNC_BARRIER];
return &state.cp15_data_sync_barrier;
case 5:
// This is a dummy write, we ignore the value written here.
return &interpreter_state->CP15[CP15_DATA_MEMORY_BARRIER];
return &state.cp15_data_memory_barrier;
default:
return std::monostate{};
}
}
if (!two && CRn == CoprocReg::C13 && opc1 == 0 && CRm == CoprocReg::C0 && opc2 == 2) {
return &interpreter_state->CP15[CP15_THREAD_UPRW];
return &state.cp15_thread_uprw;
}
return std::monostate{};
@ -60,9 +60,9 @@ CallbackOrAccessOneWord DynarmicCP15::CompileGetOneWord(bool two, unsigned opc1,
if (!two && CRn == CoprocReg::C13 && opc1 == 0 && CRm == CoprocReg::C0) {
switch (opc2) {
case 2:
return &interpreter_state->CP15[CP15_THREAD_UPRW];
return &state.cp15_thread_uprw;
case 3:
return &interpreter_state->CP15[CP15_THREAD_URO];
return &state.cp15_thread_uro;
default:
return std::monostate{};
}

12
src/core/arm/dynarmic/arm_dynarmic_cp15.h
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@ -8,13 +8,19 @@
#include <dynarmic/A32/coprocessor.h>
#include "common/common_types.h"
struct ARMul_State;
struct CP15State {
u32 cp15_thread_uprw = 0;
u32 cp15_thread_uro = 0;
u32 cp15_flush_prefetch_buffer = 0; ///< dummy value
u32 cp15_data_sync_barrier = 0; ///< dummy value
u32 cp15_data_memory_barrier = 0; ///< dummy value
};
class DynarmicCP15 final : public Dynarmic::A32::Coprocessor {
public:
using CoprocReg = Dynarmic::A32::CoprocReg;
explicit DynarmicCP15(const std::shared_ptr<ARMul_State>&);
explicit DynarmicCP15(CP15State&);
~DynarmicCP15() override;
std::optional<Callback> CompileInternalOperation(bool two, unsigned opc1, CoprocReg CRd,
@ -32,5 +38,5 @@ public:
std::optional<u8> option) override;
private:
std::shared_ptr<ARMul_State> interpreter_state;
CP15State& state;
};

2
src/core/core.cpp
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@ -267,7 +267,7 @@ System::ResultStatus System::Init(Frontend::EmuWindow& emu_window, u32 system_mo
#ifdef ARCHITECTURE_x86_64
for (std::size_t i = 0; i < num_cores; ++i) {
cpu_cores.push_back(
std::make_shared<ARM_Dynarmic>(this, *memory, USER32MODE, i, timing->GetTimer(i)));
std::make_shared<ARM_Dynarmic>(this, *memory, i, timing->GetTimer(i)));
}
#else
for (std::size_t i = 0; i < num_cores; ++i) {