tests/A32: Add coprocessor tests
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Merry
merry
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tests/A32/test_coprocessor.cpp
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tests/A32/test_coprocessor.cpp
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/* This file is part of the dynarmic project.
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* Copyright (c) 2022 MerryMage
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* SPDX-License-Identifier: 0BSD
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*/
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#include <memory>
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#include <catch2/catch.hpp>
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#include "./testenv.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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#include "dynarmic/interface/A32/coprocessor.h"
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using namespace Dynarmic;
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struct CP15State {
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u32 cp15_thread_uprw = 0;
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u32 cp15_thread_uro = 0;
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u32 cp15_flush_prefetch_buffer = 0; ///< dummy value
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u32 cp15_data_sync_barrier = 0; ///< dummy value
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u32 cp15_data_memory_barrier = 0; ///< dummy value
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};
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class TestCP15 final : public Dynarmic::A32::Coprocessor {
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public:
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using CoprocReg = Dynarmic::A32::CoprocReg;
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explicit TestCP15(CP15State&);
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~TestCP15() override;
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std::optional<Callback> CompileInternalOperation(bool two, unsigned opc1, CoprocReg CRd, CoprocReg CRn, CoprocReg CRm, unsigned opc2) override;
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CallbackOrAccessOneWord CompileSendOneWord(bool two, unsigned opc1, CoprocReg CRn, CoprocReg CRm, unsigned opc2) override;
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CallbackOrAccessTwoWords CompileSendTwoWords(bool two, unsigned opc, CoprocReg CRm) override;
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CallbackOrAccessOneWord CompileGetOneWord(bool two, unsigned opc1, CoprocReg CRn, CoprocReg CRm, unsigned opc2) override;
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CallbackOrAccessTwoWords CompileGetTwoWords(bool two, unsigned opc, CoprocReg CRm) override;
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std::optional<Callback> CompileLoadWords(bool two, bool long_transfer, CoprocReg CRd, std::optional<u8> option) override;
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std::optional<Callback> CompileStoreWords(bool two, bool long_transfer, CoprocReg CRd, std::optional<u8> option) override;
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private:
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CP15State& state;
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};
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using Callback = Dynarmic::A32::Coprocessor::Callback;
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using CallbackOrAccessOneWord = Dynarmic::A32::Coprocessor::CallbackOrAccessOneWord;
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using CallbackOrAccessTwoWords = Dynarmic::A32::Coprocessor::CallbackOrAccessTwoWords;
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TestCP15::TestCP15(CP15State& state)
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: state(state) {}
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TestCP15::~TestCP15() = default;
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std::optional<Callback> TestCP15::CompileInternalOperation([[maybe_unused]] bool two, [[maybe_unused]] unsigned opc1, [[maybe_unused]] CoprocReg CRd, [[maybe_unused]] CoprocReg CRn, [[maybe_unused]] CoprocReg CRm, [[maybe_unused]] unsigned opc2) {
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return std::nullopt;
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}
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CallbackOrAccessOneWord TestCP15::CompileSendOneWord(bool two, unsigned opc1, CoprocReg CRn, CoprocReg CRm, unsigned opc2) {
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if (!two && CRn == CoprocReg::C7 && opc1 == 0 && CRm == CoprocReg::C5 && opc2 == 4) {
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return Callback{
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[](void* user_arg, std::uint32_t, std::uint32_t) -> std::uint64_t {
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CP15State& state = *reinterpret_cast<CP15State*>(user_arg);
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state.cp15_flush_prefetch_buffer = 1;
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return 0;
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},
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reinterpret_cast<void*>(&state),
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};
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}
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if (!two && CRn == CoprocReg::C7 && opc1 == 0 && CRm == CoprocReg::C10) {
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switch (opc2) {
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case 4:
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return Callback{
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[](void* user_arg, std::uint32_t, std::uint32_t) -> std::uint64_t {
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CP15State& state = *reinterpret_cast<CP15State*>(user_arg);
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state.cp15_data_sync_barrier = 1;
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return 0;
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},
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reinterpret_cast<void*>(&state),
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};
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case 5:
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return Callback{
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[](void* user_arg, std::uint32_t, std::uint32_t) -> std::uint64_t {
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CP15State& state = *reinterpret_cast<CP15State*>(user_arg);
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state.cp15_data_memory_barrier = 1;
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return 0;
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},
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reinterpret_cast<void*>(&state),
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};
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default:
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return std::monostate{};
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}
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}
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if (!two && CRn == CoprocReg::C13 && opc1 == 0 && CRm == CoprocReg::C0 && opc2 == 2) {
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return &state.cp15_thread_uprw;
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}
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return std::monostate{};
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}
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CallbackOrAccessTwoWords TestCP15::CompileSendTwoWords([[maybe_unused]] bool two, [[maybe_unused]] unsigned opc, [[maybe_unused]] CoprocReg CRm) {
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return std::monostate{};
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}
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CallbackOrAccessOneWord TestCP15::CompileGetOneWord(bool two, unsigned opc1, CoprocReg CRn, CoprocReg CRm, unsigned opc2) {
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// TODO(merry): Privileged CP15 registers
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if (!two && CRn == CoprocReg::C13 && opc1 == 0 && CRm == CoprocReg::C0) {
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switch (opc2) {
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case 2:
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return &state.cp15_thread_uprw;
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case 3:
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return &state.cp15_thread_uro;
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default:
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return std::monostate{};
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}
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}
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return std::monostate{};
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}
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CallbackOrAccessTwoWords TestCP15::CompileGetTwoWords([[maybe_unused]] bool two, [[maybe_unused]] unsigned opc, [[maybe_unused]] CoprocReg CRm) {
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return std::monostate{};
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}
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std::optional<Callback> TestCP15::CompileLoadWords([[maybe_unused]] bool two, [[maybe_unused]] bool long_transfer, [[maybe_unused]] CoprocReg CRd, [[maybe_unused]] std::optional<u8> option) {
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return std::nullopt;
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}
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std::optional<Callback> TestCP15::CompileStoreWords([[maybe_unused]] bool two, [[maybe_unused]] bool long_transfer, [[maybe_unused]] CoprocReg CRd, [[maybe_unused]] std::optional<u8> option) {
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return std::nullopt;
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}
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static A32::UserConfig GetUserConfig(ArmTestEnv* testenv, CP15State& cp15_state) {
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A32::UserConfig user_config;
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user_config.optimizations &= ~OptimizationFlag::FastDispatch;
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user_config.callbacks = testenv;
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user_config.coprocessors[15] = std::make_unique<TestCP15>(cp15_state);
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return user_config;
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}
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TEST_CASE("arm: Test coprocessor (Read TPIDRURO)", "[arm][A32]") {
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ArmTestEnv test_env;
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CP15State cp15_state;
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A32::Jit jit{GetUserConfig(&test_env, cp15_state)};
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cp15_state.cp15_thread_uro = 0xf00d;
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cp15_state.cp15_thread_uprw = 0xcafe;
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jit.Regs()[0] = 0xaaaa;
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test_env.code_mem = {
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0xee1d1f70, // mrc p15, 0, r1, c13, c0, 3 (Read TPIDRURO into R1)
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0xeafffffe, // b +#0
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};
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jit.SetCpsr(0x000001d0); // User-mode
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test_env.ticks_left = 2;
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jit.Run();
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REQUIRE(jit.Regs()[1] == 0xf00d);
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}
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TEST_CASE("arm: Test coprocessor (Read TPIDRURW)", "[arm][A32]") {
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ArmTestEnv test_env;
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CP15State cp15_state;
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A32::Jit jit{GetUserConfig(&test_env, cp15_state)};
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cp15_state.cp15_thread_uro = 0xf00d;
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cp15_state.cp15_thread_uprw = 0xcafe;
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jit.Regs()[0] = 0xaaaa;
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test_env.code_mem = {
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0xee1d1f50, // mrc p15, 0, r1, c13, c0, 2 (Read TPIDRURW into R1)
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0xeafffffe, // b +#0
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};
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jit.SetCpsr(0x000001d0); // User-mode
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test_env.ticks_left = 2;
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jit.Run();
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REQUIRE(jit.Regs()[1] == 0xcafe);
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}
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TEST_CASE("arm: Test coprocessor (Write TPIDRURW)", "[arm][A32]") {
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ArmTestEnv test_env;
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CP15State cp15_state;
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A32::Jit jit{GetUserConfig(&test_env, cp15_state)};
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cp15_state.cp15_thread_uro = 0xf00d;
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cp15_state.cp15_thread_uprw = 0xcafe;
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jit.Regs()[0] = 0xaaaa;
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test_env.code_mem = {
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0xee0d0f50, // mcr p15, 0, r0, c13, c0, 2 (Write R0 into TPIDRURW)
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0xeafffffe, // b +#0
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};
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jit.SetCpsr(0x000001d0); // User-mode
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test_env.ticks_left = 2;
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jit.Run();
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REQUIRE(cp15_state.cp15_thread_uprw == 0xaaaa);
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}
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TEST_CASE("arm: Test coprocessor (DMB)", "[arm][A32]") {
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ArmTestEnv test_env;
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CP15State cp15_state;
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A32::Jit jit{GetUserConfig(&test_env, cp15_state)};
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cp15_state.cp15_thread_uro = 0xf00d;
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cp15_state.cp15_thread_uprw = 0xcafe;
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jit.Regs()[0] = 0xaaaa;
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test_env.code_mem = {
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0xee070fba, // mcr p15, 0, r0, c7, c10, 5 (Data Memory Barrier)
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0xeafffffe, // b +#0
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};
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jit.SetCpsr(0x000001d0); // User-mode
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test_env.ticks_left = 2;
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jit.Run();
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REQUIRE(cp15_state.cp15_data_memory_barrier == 1);
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}
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@ -11,6 +11,7 @@ if ("A32" IN_LIST DYNARMIC_FRONTENDS)
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target_sources(dynarmic_tests PRIVATE
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A32/test_arm_disassembler.cpp
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A32/test_arm_instructions.cpp
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A32/test_coprocessor.cpp
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A32/test_thumb_instructions.cpp
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A32/testenv.h
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decoder_tests.cpp
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