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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <atomic>
#include <memory>
#include <span>
#include <unordered_map>
#include <vector>
#include "core/arm/arm_interface.h"
#include "core/arm/nce/guest_context.h"
namespace Core::Memory {
class Memory;
}
namespace Core {
class System;
class ARM_NCE final : public ARM_Interface {
public:
ARM_NCE(System& system_, bool uses_wall_clock_, std::size_t core_index_);
~ARM_NCE() override;
void Initialize() override;
void SetPC(u64 pc) override;
u64 GetPC() const override;
u64 GetSP() const override;
u64 GetReg(int index) const override;
void SetReg(int index, u64 value) override;
u128 GetVectorReg(int index) const override;
void SetVectorReg(int index, u128 value) override;
u32 GetPSTATE() const override;
void SetPSTATE(u32 pstate) override;
u64 GetTlsAddress() const override;
void SetTlsAddress(u64 address) override;
void SetTPIDR_EL0(u64 value) override;
u64 GetTPIDR_EL0() const override;
Architecture GetArchitecture() const override {
return Architecture::Aarch64;
}
void SaveContext(ThreadContext32& ctx) const override {}
void SaveContext(ThreadContext64& ctx) const override;
void LoadContext(const ThreadContext32& ctx) override {}
void LoadContext(const ThreadContext64& ctx) override;
void SignalInterrupt() override;
void ClearInterrupt() override;
void ClearExclusiveState() override;
void ClearInstructionCache() override;
void InvalidateCacheRange(u64 addr, std::size_t size) override;
void PageTableChanged(Common::PageTable& new_page_table,
std::size_t new_address_space_size_in_bits) override;
protected:
HaltReason RunJit() override;
HaltReason StepJit() override;
u32 GetSvcNumber() const override;
const Kernel::DebugWatchpoint* HaltedWatchpoint() const override {
return nullptr;
}
void RewindBreakpointInstruction() override {}
private:
// Assembly definitions.
static HaltReason ReturnToRunCodeByTrampoline(void* tpidr, GuestContext* ctx,
u64 trampoline_addr);
static HaltReason ReturnToRunCodeByExceptionLevelChange(int tid, void* tpidr);
static void ReturnToRunCodeByExceptionLevelChangeSignalHandler(int sig, void* info,
void* raw_context);
static void BreakFromRunCodeSignalHandler(int sig, void* info, void* raw_context);
static void GuestFaultSignalHandler(int sig, void* info, void* raw_context);
static void LockThreadParameters(void* tpidr);
static void UnlockThreadParameters(void* tpidr);
private:
// C++ implementation functions for assembly definitions.
static void* RestoreGuestContext(void* raw_context);
static void SaveGuestContext(GuestContext* ctx, void* raw_context);
static bool HandleGuestFault(GuestContext* ctx, void* info, void* raw_context);
static void HandleHostFault(int sig, void* info, void* raw_context);
public:
// Members set on initialization.
std::size_t core_index{};
pid_t thread_id{-1};
// Core context.
GuestContext guest_ctx;
// Thread and invalidation info.
std::mutex lock;
Kernel::KThread* running_thread{};
};
} // namespace Core
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