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Merge pull request #7959 from merryhime/cmpxchg 

dynarmic: Inline exclusive memory accesses
This commit is contained in:
Fernando S 2022-03-01 22:50:52 +01:00 committed by GitHub
parent 3c47570563 ec9689f200
commit e06a133717
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GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 114 additions and 8 deletions
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2
externals/dynarmic vendored

@ -1 +1 @@
Subproject commit 19a423034e1abcaf1a61fa61ceffffebf45a0240
Subproject commit 0fd32c5fa4a57738b0b390a597257b4be39a7a91

1
src/common/settings.cpp
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@ -176,6 +176,7 @@ void RestoreGlobalState(bool is_powered_on) {
values.cpuopt_unsafe_ignore_standard_fpcr.SetGlobal(true);
values.cpuopt_unsafe_inaccurate_nan.SetGlobal(true);
values.cpuopt_unsafe_fastmem_check.SetGlobal(true);
values.cpuopt_unsafe_ignore_global_monitor.SetGlobal(true);
// Renderer
values.renderer_backend.SetGlobal(true);

3
src/common/settings.h
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@ -484,12 +484,15 @@ struct Values {
BasicSetting<bool> cpuopt_misc_ir{true, "cpuopt_misc_ir"};
BasicSetting<bool> cpuopt_reduce_misalign_checks{true, "cpuopt_reduce_misalign_checks"};
BasicSetting<bool> cpuopt_fastmem{true, "cpuopt_fastmem"};
BasicSetting<bool> cpuopt_fastmem_exclusives{true, "cpuopt_fastmem_exclusives"};
BasicSetting<bool> cpuopt_recompile_exclusives{true, "cpuopt_recompile_exclusives"};
Setting<bool> cpuopt_unsafe_unfuse_fma{true, "cpuopt_unsafe_unfuse_fma"};
Setting<bool> cpuopt_unsafe_reduce_fp_error{true, "cpuopt_unsafe_reduce_fp_error"};
Setting<bool> cpuopt_unsafe_ignore_standard_fpcr{true, "cpuopt_unsafe_ignore_standard_fpcr"};
Setting<bool> cpuopt_unsafe_inaccurate_nan{true, "cpuopt_unsafe_inaccurate_nan"};
Setting<bool> cpuopt_unsafe_fastmem_check{true, "cpuopt_unsafe_fastmem_check"};
Setting<bool> cpuopt_unsafe_ignore_global_monitor{true, "cpuopt_unsafe_ignore_global_monitor"};
// Renderer
RangedSetting<RendererBackend> renderer_backend{

12
src/core/arm/dynarmic/arm_dynarmic_32.cpp
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@ -137,6 +137,8 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
config.page_table_pointer_mask_bits = Common::PageTable::ATTRIBUTE_BITS;
config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
config.only_detect_misalignment_via_page_table_on_page_boundary = true;
config.fastmem_exclusive_access = true;
config.recompile_on_exclusive_fastmem_failure = true;
// Multi-process state
config.processor_id = core_index;
@ -178,6 +180,12 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
if (!Settings::values.cpuopt_fastmem) {
config.fastmem_pointer = nullptr;
}
if (!Settings::values.cpuopt_fastmem_exclusives) {
config.fastmem_exclusive_access = false;
}
if (!Settings::values.cpuopt_recompile_exclusives) {
config.recompile_on_exclusive_fastmem_failure = false;
}
}
// Unsafe optimizations
@ -195,6 +203,9 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
if (Settings::values.cpuopt_unsafe_inaccurate_nan) {
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_InaccurateNaN;
}
if (Settings::values.cpuopt_unsafe_ignore_global_monitor) {
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_IgnoreGlobalMonitor;
}
}
// Curated optimizations
@ -203,6 +214,7 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_UnfuseFMA;
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_IgnoreStandardFPCRValue;
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_InaccurateNaN;
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_IgnoreGlobalMonitor;
}
return std::make_unique<Dynarmic::A32::Jit>(config);

13
src/core/arm/dynarmic/arm_dynarmic_64.cpp
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@ -185,6 +185,9 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
config.fastmem_pointer = page_table->fastmem_arena;
config.fastmem_address_space_bits = address_space_bits;
config.silently_mirror_fastmem = false;
config.fastmem_exclusive_access = true;
config.recompile_on_exclusive_fastmem_failure = true;
}
// Multi-process state
@ -237,6 +240,12 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
if (!Settings::values.cpuopt_fastmem) {
config.fastmem_pointer = nullptr;
}
if (!Settings::values.cpuopt_fastmem_exclusives) {
config.fastmem_exclusive_access = false;
}
if (!Settings::values.cpuopt_recompile_exclusives) {
config.recompile_on_exclusive_fastmem_failure = false;
}
}
// Unsafe optimizations
@ -254,6 +263,9 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
if (Settings::values.cpuopt_unsafe_fastmem_check) {
config.fastmem_address_space_bits = 64;
}
if (Settings::values.cpuopt_unsafe_ignore_global_monitor) {
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_IgnoreGlobalMonitor;
}
}
// Curated optimizations
@ -262,6 +274,7 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_UnfuseFMA;
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_InaccurateNaN;
config.fastmem_address_space_bits = 64;
config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_IgnoreGlobalMonitor;
}
return std::make_shared<Dynarmic::A64::Jit>(config);

4
src/core/arm/dynarmic/arm_exclusive_monitor.cpp
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@ -37,8 +37,8 @@ u128 DynarmicExclusiveMonitor::ExclusiveRead128(std::size_t core_index, VAddr ad
});
}
void DynarmicExclusiveMonitor::ClearExclusive() {
monitor.Clear();
void DynarmicExclusiveMonitor::ClearExclusive(std::size_t core_index) {
monitor.ClearProcessor(core_index);
}
bool DynarmicExclusiveMonitor::ExclusiveWrite8(std::size_t core_index, VAddr vaddr, u8 value) {

2
src/core/arm/dynarmic/arm_exclusive_monitor.h
View File

@ -29,7 +29,7 @@ public:
u32 ExclusiveRead32(std::size_t core_index, VAddr addr) override;
u64 ExclusiveRead64(std::size_t core_index, VAddr addr) override;
u128 ExclusiveRead128(std::size_t core_index, VAddr addr) override;
void ClearExclusive() override;
void ClearExclusive(std::size_t core_index) override;
bool ExclusiveWrite8(std::size_t core_index, VAddr vaddr, u8 value) override;
bool ExclusiveWrite16(std::size_t core_index, VAddr vaddr, u16 value) override;

2
src/core/arm/exclusive_monitor.h
View File

@ -23,7 +23,7 @@ public:
virtual u32 ExclusiveRead32(std::size_t core_index, VAddr addr) = 0;
virtual u64 ExclusiveRead64(std::size_t core_index, VAddr addr) = 0;
virtual u128 ExclusiveRead128(std::size_t core_index, VAddr addr) = 0;
virtual void ClearExclusive() = 0;
virtual void ClearExclusive(std::size_t core_index) = 0;
virtual bool ExclusiveWrite8(std::size_t core_index, VAddr vaddr, u8 value) = 0;
virtual bool ExclusiveWrite16(std::size_t core_index, VAddr vaddr, u16 value) = 0;

4
src/core/hle/kernel/k_address_arbiter.cpp
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@ -49,7 +49,7 @@ bool DecrementIfLessThan(Core::System& system, s32* out, VAddr address, s32 valu
}
} else {
// Otherwise, clear our exclusive hold and finish
monitor.ClearExclusive();
monitor.ClearExclusive(current_core);
}
// We're done.
@ -78,7 +78,7 @@ bool UpdateIfEqual(Core::System& system, s32* out, VAddr address, s32 value, s32
}
} else {
// Otherwise, clear our exclusive hold and finish.
monitor.ClearExclusive();
monitor.ClearExclusive(current_core);
}
// We're done.

4
src/yuzu/configuration/config.cpp
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@ -609,6 +609,7 @@ void Config::ReadCpuValues() {
ReadGlobalSetting(Settings::values.cpuopt_unsafe_ignore_standard_fpcr);
ReadGlobalSetting(Settings::values.cpuopt_unsafe_inaccurate_nan);
ReadGlobalSetting(Settings::values.cpuopt_unsafe_fastmem_check);
ReadGlobalSetting(Settings::values.cpuopt_unsafe_ignore_global_monitor);
if (global) {
ReadBasicSetting(Settings::values.cpu_debug_mode);
@ -621,6 +622,8 @@ void Config::ReadCpuValues() {
ReadBasicSetting(Settings::values.cpuopt_misc_ir);
ReadBasicSetting(Settings::values.cpuopt_reduce_misalign_checks);
ReadBasicSetting(Settings::values.cpuopt_fastmem);
ReadBasicSetting(Settings::values.cpuopt_fastmem_exclusives);
ReadBasicSetting(Settings::values.cpuopt_recompile_exclusives);
}
qt_config->endGroup();
@ -1139,6 +1142,7 @@ void Config::SaveCpuValues() {
WriteGlobalSetting(Settings::values.cpuopt_unsafe_ignore_standard_fpcr);
WriteGlobalSetting(Settings::values.cpuopt_unsafe_inaccurate_nan);
WriteGlobalSetting(Settings::values.cpuopt_unsafe_fastmem_check);
WriteGlobalSetting(Settings::values.cpuopt_unsafe_ignore_global_monitor);
if (global) {
WriteBasicSetting(Settings::values.cpu_debug_mode);

9
src/yuzu/configuration/configure_cpu.cpp
View File

@ -36,6 +36,7 @@ void ConfigureCpu::SetConfiguration() {
ui->cpuopt_unsafe_ignore_standard_fpcr->setEnabled(runtime_lock);
ui->cpuopt_unsafe_inaccurate_nan->setEnabled(runtime_lock);
ui->cpuopt_unsafe_fastmem_check->setEnabled(runtime_lock);
ui->cpuopt_unsafe_ignore_global_monitor->setEnabled(runtime_lock);
ui->cpuopt_unsafe_unfuse_fma->setChecked(Settings::values.cpuopt_unsafe_unfuse_fma.GetValue());
ui->cpuopt_unsafe_reduce_fp_error->setChecked(
@ -46,6 +47,8 @@ void ConfigureCpu::SetConfiguration() {
Settings::values.cpuopt_unsafe_inaccurate_nan.GetValue());
ui->cpuopt_unsafe_fastmem_check->setChecked(
Settings::values.cpuopt_unsafe_fastmem_check.GetValue());
ui->cpuopt_unsafe_ignore_global_monitor->setChecked(
Settings::values.cpuopt_unsafe_ignore_global_monitor.GetValue());
if (Settings::IsConfiguringGlobal()) {
ui->accuracy->setCurrentIndex(static_cast<int>(Settings::values.cpu_accuracy.GetValue()));
@ -82,6 +85,9 @@ void ConfigureCpu::ApplyConfiguration() {
ConfigurationShared::ApplyPerGameSetting(&Settings::values.cpuopt_unsafe_fastmem_check,
ui->cpuopt_unsafe_fastmem_check,
cpuopt_unsafe_fastmem_check);
ConfigurationShared::ApplyPerGameSetting(&Settings::values.cpuopt_unsafe_ignore_global_monitor,
ui->cpuopt_unsafe_ignore_global_monitor,
cpuopt_unsafe_ignore_global_monitor);
}
void ConfigureCpu::changeEvent(QEvent* event) {
@ -120,4 +126,7 @@ void ConfigureCpu::SetupPerGameUI() {
ConfigurationShared::SetColoredTristate(ui->cpuopt_unsafe_fastmem_check,
Settings::values.cpuopt_unsafe_fastmem_check,
cpuopt_unsafe_fastmem_check);
ConfigurationShared::SetColoredTristate(ui->cpuopt_unsafe_ignore_global_monitor,
Settings::values.cpuopt_unsafe_ignore_global_monitor,
cpuopt_unsafe_ignore_global_monitor);
}

1
src/yuzu/configuration/configure_cpu.h
View File

@ -45,6 +45,7 @@ private:
ConfigurationShared::CheckState cpuopt_unsafe_ignore_standard_fpcr;
ConfigurationShared::CheckState cpuopt_unsafe_inaccurate_nan;
ConfigurationShared::CheckState cpuopt_unsafe_fastmem_check;
ConfigurationShared::CheckState cpuopt_unsafe_ignore_global_monitor;
const Core::System& system;
};

12
src/yuzu/configuration/configure_cpu.ui
View File

@ -150,6 +150,18 @@
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="cpuopt_unsafe_ignore_global_monitor">
<property name="toolTip">
<string>
&lt;div&gt;This option improves speed by relying only on the semantics of cmpxchg to ensure safety of exclusive access instructions. Please note this may result in deadlocks and other race conditions.&lt;/div&gt;
</string>
</property>
<property name="text">
<string>Ignore global monitor</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>

8
src/yuzu/configuration/configure_cpu_debug.cpp
View File

@ -44,6 +44,12 @@ void ConfigureCpuDebug::SetConfiguration() {
Settings::values.cpuopt_reduce_misalign_checks.GetValue());
ui->cpuopt_fastmem->setEnabled(runtime_lock);
ui->cpuopt_fastmem->setChecked(Settings::values.cpuopt_fastmem.GetValue());
ui->cpuopt_fastmem_exclusives->setEnabled(runtime_lock);
ui->cpuopt_fastmem_exclusives->setChecked(
Settings::values.cpuopt_fastmem_exclusives.GetValue());
ui->cpuopt_recompile_exclusives->setEnabled(runtime_lock);
ui->cpuopt_recompile_exclusives->setChecked(
Settings::values.cpuopt_recompile_exclusives.GetValue());
}
void ConfigureCpuDebug::ApplyConfiguration() {
@ -56,6 +62,8 @@ void ConfigureCpuDebug::ApplyConfiguration() {
Settings::values.cpuopt_misc_ir = ui->cpuopt_misc_ir->isChecked();
Settings::values.cpuopt_reduce_misalign_checks = ui->cpuopt_reduce_misalign_checks->isChecked();
Settings::values.cpuopt_fastmem = ui->cpuopt_fastmem->isChecked();
Settings::values.cpuopt_fastmem_exclusives = ui->cpuopt_fastmem_exclusives->isChecked();
Settings::values.cpuopt_recompile_exclusives = ui->cpuopt_recompile_exclusives->isChecked();
}
void ConfigureCpuDebug::changeEvent(QEvent* event) {

29
src/yuzu/configuration/configure_cpu_debug.ui
View File

@ -144,7 +144,34 @@
</string>
</property>
<property name="text">
<string>Enable Host MMU Emulation</string>
<string>Enable Host MMU Emulation (general memory instructions)</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="cpuopt_fastmem_exclusives">
<property name="toolTip">
<string>
&lt;div style=&quot;white-space: nowrap&quot;&gt;This optimization speeds up exclusive memory accesses by the guest program.&lt;/div&gt;
&lt;div style=&quot;white-space: nowrap&quot;&gt;Enabling it causes guest exclusive memory reads/writes to be done directly into memory and make use of Host's MMU.&lt;/div&gt;
&lt;div style=&quot;white-space: nowrap&quot;&gt;Disabling this forces all exclusive memory accesses to use Software MMU Emulation.&lt;/div&gt;
</string>
</property>
<property name="text">
<string>Enable Host MMU Emulation (exclusive memory instructions)</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="cpuopt_recompile_exclusives">
<property name="toolTip">
<string>
&lt;div style=&quot;white-space: nowrap&quot;&gt;This optimization speeds up exclusive memory accesses by the guest program.&lt;/div&gt;
&lt;div style=&quot;white-space: nowrap&quot;&gt;Enabling it reduces the overhead of fastmem failure of exclusive memory accesses.&lt;/div&gt;
</string>
</property>
<property name="text">
<string>Enable recompilation of exclusive memory instructions</string>
</property>
</widget>
</item>

3
src/yuzu_cmd/config.cpp
View File

@ -280,11 +280,14 @@ void Config::ReadValues() {
ReadSetting("Cpu", Settings::values.cpuopt_misc_ir);
ReadSetting("Cpu", Settings::values.cpuopt_reduce_misalign_checks);
ReadSetting("Cpu", Settings::values.cpuopt_fastmem);
ReadSetting("Cpu", Settings::values.cpuopt_fastmem_exclusives);
ReadSetting("Cpu", Settings::values.cpuopt_recompile_exclusives);
ReadSetting("Cpu", Settings::values.cpuopt_unsafe_unfuse_fma);
ReadSetting("Cpu", Settings::values.cpuopt_unsafe_reduce_fp_error);
ReadSetting("Cpu", Settings::values.cpuopt_unsafe_ignore_standard_fpcr);
ReadSetting("Cpu", Settings::values.cpuopt_unsafe_inaccurate_nan);
ReadSetting("Cpu", Settings::values.cpuopt_unsafe_fastmem_check);
ReadSetting("Cpu", Settings::values.cpuopt_unsafe_ignore_global_monitor);
// Renderer
ReadSetting("Renderer", Settings::values.renderer_backend);

13
src/yuzu_cmd/default_ini.h
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@ -174,6 +174,14 @@ cpuopt_reduce_misalign_checks =
# 0: Disabled, 1 (default): Enabled
cpuopt_fastmem =
# Enable Host MMU Emulation for exclusive memory instructions (faster guest memory access)
# 0: Disabled, 1 (default): Enabled
cpuopt_fastmem_exclusives =
# Enable fallback on failure of fastmem of exclusive memory instructions (faster guest memory access)
# 0: Disabled, 1 (default): Enabled
cpuopt_recompile_exclusives =
# Enable unfuse FMA (improve performance on CPUs without FMA)
# Only enabled if cpu_accuracy is set to Unsafe. Automatically chosen with cpu_accuracy = Auto-select.
# 0: Disabled, 1 (default): Enabled
@ -199,6 +207,11 @@ cpuopt_unsafe_inaccurate_nan =
# 0: Disabled, 1 (default): Enabled
cpuopt_unsafe_fastmem_check =
# Enable faster exclusive instructions
# Only enabled if cpu_accuracy is set to Unsafe. Automatically chosen with cpu_accuracy = Auto-select.
# 0: Disabled, 1 (default): Enabled
cpuopt_unsafe_ignore_global_monitor =
[Renderer]
# Which backend API to use.
# 0 (default): OpenGL, 1: Vulkan