src/ARMeilleure/Common/AddressTablePresets.cs

@@ -36,11 +36,32 @@ namespace ARMeilleure.Common
                 new( 1, 9),
             };
 
-        public static AddressTableLevel[] GetArmPreset(bool for64Bits, bool sparse)
+        private static readonly AddressTableLevel[] _levels64BitSparseGiant =
+            new AddressTableLevel[]
+            {
+                new( 38, 1),
+                new( 2, 36),
+            };
+
+        private static readonly AddressTableLevel[] _levels32BitSparseGiant =
+            new AddressTableLevel[]
+            {
+                new( 31, 1),
+                new( 1, 30),
+            };
+
+        public static AddressTableLevel[] GetArmPreset(bool for64Bits, bool sparse, bool lowPower = false)
         {
             if (sparse)
             {
+                if (lowPower)
+                {
+                    return for64Bits ? _levels64BitSparseTiny : _levels32BitSparseTiny;
+                }
+                else
+                {
                     return for64Bits ? _levels64BitSparseGiant : _levels32BitSparseGiant;
+                }
             }
             else
             {

src/ARMeilleure/Translation/PTC/Ptc.cs

@@ -30,7 +30,7 @@ namespace ARMeilleure.Translation.PTC
         private const string OuterHeaderMagicString = "PTCohd\0\0";
         private const string InnerHeaderMagicString = "PTCihd\0\0";
 
-        private const uint InternalVersion = 6986; //! To be incremented manually for each change to the ARMeilleure project.
+        private const uint InternalVersion = 6991; //! To be incremented manually for each change to the ARMeilleure project.
 
         private const string ActualDir = "0";
         private const string BackupDir = "1";
@@ -102,7 +102,7 @@ namespace ARMeilleure.Translation.PTC
             Disable();
         }
 
-        public void Initialize(string titleIdText, string displayVersion, bool enabled, MemoryManagerType memoryMode)
+        public void Initialize(string titleIdText, string displayVersion, bool enabled, MemoryManagerType memoryMode, string cacheSelector)
         {
             Wait();
 
@@ -141,8 +141,8 @@ namespace ARMeilleure.Translation.PTC
                 Directory.CreateDirectory(workPathBackup);
             }
 
-            CachePathActual = Path.Combine(workPathActual, DisplayVersion);
+            CachePathActual = Path.Combine(workPathActual, DisplayVersion) + "-" + cacheSelector;
-            CachePathBackup = Path.Combine(workPathBackup, DisplayVersion);
+            CachePathBackup = Path.Combine(workPathBackup, DisplayVersion) + "-" + cacheSelector;
 
             PreLoad();
             Profiler.PreLoad();

src/ARMeilleure/Translation/Translator.cs

@@ -58,9 +58,9 @@ namespace ARMeilleure.Translation
             FunctionTable.Fill = (ulong)Stubs.SlowDispatchStub;
         }
 
-        public IPtcLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled)
+        public IPtcLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled, string cacheSelector)
         {
-            _ptc.Initialize(titleIdText, displayVersion, enabled, Memory.Type);
+            _ptc.Initialize(titleIdText, displayVersion, enabled, Memory.Type, cacheSelector);
             return _ptc;
         }
 

src/Ryujinx.Cpu/AddressTable.cs

@@ -178,12 +178,12 @@ namespace ARMeilleure.Common
         /// <param name="for64Bits">True if the guest is A64, false otherwise</param>
         /// <param name="type">Memory manager type</param>
         /// <returns>An <see cref="AddressTable{TEntry}"/> for ARM function lookup</returns>
-        public static AddressTable<TEntry> CreateForArm(bool for64Bits, MemoryManagerType type)
+        public static AddressTable<TEntry> CreateForArm(bool for64Bits, MemoryManagerType type, bool lowPower)
         {
             // Assume software memory means that we don't want to use any signal handlers.
             bool sparse = type != MemoryManagerType.SoftwareMmu && type != MemoryManagerType.SoftwarePageTable;
 
-            return new AddressTable<TEntry>(AddressTablePresets.GetArmPreset(for64Bits, sparse), sparse);
+            return new AddressTable<TEntry>(AddressTablePresets.GetArmPreset(for64Bits, sparse, lowPower), sparse);
         }
 
         /// <summary>

src/Ryujinx.Cpu/AppleHv/HvCpuContext.cs

@@ -9,7 +9,7 @@ namespace Ryujinx.Cpu.AppleHv
         private readonly ITickSource _tickSource;
         private readonly HvMemoryManager _memoryManager;
 
-        public HvCpuContext(ITickSource tickSource, IMemoryManager memory, bool for64Bit)
+        public HvCpuContext(ITickSource tickSource, IMemoryManager memory, bool for64Bit, bool lowPower)
         {
             _tickSource = tickSource;
             _memoryManager = (HvMemoryManager)memory;
@@ -32,7 +32,7 @@ namespace Ryujinx.Cpu.AppleHv
         {
         }
 
-        public IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled)
+        public IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled, string cacheSelector)
         {
             return new DummyDiskCacheLoadState();
         }

src/Ryujinx.Cpu/AppleHv/HvEngine.cs

@@ -14,9 +14,9 @@ namespace Ryujinx.Cpu.AppleHv
         }
 
         /// <inheritdoc/>
-        public ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit)
+        public ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit, bool lowPower)
         {
-            return new HvCpuContext(_tickSource, memoryManager, for64Bit);
+            return new HvCpuContext(_tickSource, memoryManager, for64Bit, lowPower);
         }
     }
 }

src/Ryujinx.Cpu/ICpuContext.cs

@@ -48,7 +48,7 @@ namespace Ryujinx.Cpu
         /// <param name="displayVersion">Version of the application</param>
         /// <param name="enabled">True if the cache should be loaded from disk if it exists, false otherwise</param>
         /// <returns>Disk cache load progress reporter and manager</returns>
-        IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled);
+        IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled, string cacheSelector);
 
         /// <summary>
         /// Indicates that code has been loaded into guest memory, and that it might be executed in the future.

src/Ryujinx.Cpu/ICpuEngine.cs

@@ -13,6 +13,6 @@ namespace Ryujinx.Cpu
         /// <param name="memoryManager">Memory manager for the address space of the context</param>
         /// <param name="for64Bit">Indicates if the context will be used to run 64-bit or 32-bit Arm code</param>
         /// <returns>CPU context</returns>
-        ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit);
+        ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit, bool lowPower);
     }
 }

src/Ryujinx.Cpu/Jit/JitCpuContext.cs

@@ -12,10 +12,10 @@ namespace Ryujinx.Cpu.Jit
         private readonly Translator _translator;
         private readonly AddressTable<ulong> _functionTable;
 
-        public JitCpuContext(ITickSource tickSource, IMemoryManager memory, bool for64Bit)
+        public JitCpuContext(ITickSource tickSource, IMemoryManager memory, bool for64Bit, bool lowPower)
         {
             _tickSource = tickSource;
-            _functionTable = AddressTable<ulong>.CreateForArm(for64Bit, memory.Type);
+            _functionTable = AddressTable<ulong>.CreateForArm(for64Bit, memory.Type, lowPower);
             _translator = new Translator(new JitMemoryAllocator(forJit: true), memory, _functionTable);
 
             if (memory.Type.IsHostMappedOrTracked())
@@ -50,9 +50,9 @@ namespace Ryujinx.Cpu.Jit
         }
 
         /// <inheritdoc/>
-        public IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled)
+        public IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled, string cacheSelector)
         {
-            return new JitDiskCacheLoadState(_translator.LoadDiskCache(titleIdText, displayVersion, enabled));
+            return new JitDiskCacheLoadState(_translator.LoadDiskCache(titleIdText, displayVersion, enabled, cacheSelector));
         }
 
         /// <inheritdoc/>

src/Ryujinx.Cpu/Jit/JitEngine.cs

@@ -12,9 +12,9 @@ namespace Ryujinx.Cpu.Jit
         }
 
         /// <inheritdoc/>
-        public ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit)
+        public ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit, bool lowPower)
         {
-            return new JitCpuContext(_tickSource, memoryManager, for64Bit);
+            return new JitCpuContext(_tickSource, memoryManager, for64Bit, lowPower);
         }
     }
 }

src/Ryujinx.Cpu/LightningJit/LightningJitCpuContext.cs

@@ -11,11 +11,11 @@ namespace Ryujinx.Cpu.LightningJit
         private readonly Translator _translator;
         private readonly AddressTable<ulong> _functionTable;
 
-        public LightningJitCpuContext(ITickSource tickSource, IMemoryManager memory, bool for64Bit)
+        public LightningJitCpuContext(ITickSource tickSource, IMemoryManager memory, bool for64Bit, bool lowPower)
         {
             _tickSource = tickSource;
 
-            _functionTable = AddressTable<ulong>.CreateForArm(for64Bit, memory.Type);
+            _functionTable = AddressTable<ulong>.CreateForArm(for64Bit, memory.Type, lowPower);
 
             _translator = new Translator(memory, _functionTable);
 
@@ -46,7 +46,7 @@ namespace Ryujinx.Cpu.LightningJit
         }
 
         /// <inheritdoc/>
-        public IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled)
+        public IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled, string cacheSelector)
         {
             return new DummyDiskCacheLoadState();
         }

src/Ryujinx.Cpu/LightningJit/LightningJitEngine.cs

@@ -12,9 +12,9 @@ namespace Ryujinx.Cpu.LightningJit
         }
 
         /// <inheritdoc/>
-        public ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit)
+        public ICpuContext CreateCpuContext(IMemoryManager memoryManager, bool for64Bit, bool lowPower)
         {
-            return new LightningJitCpuContext(_tickSource, memoryManager, for64Bit);
+            return new LightningJitCpuContext(_tickSource, memoryManager, for64Bit, lowPower);
         }
     }
 }

src/Ryujinx.HLE/HLEConfiguration.cs

@@ -98,6 +98,11 @@ namespace Ryujinx.HLE
         /// </summary>
         internal readonly bool EnablePtc;
 
+        /// <summary>
+        /// Control if the Profiled Translation Cache (PTC) should run in low power mode.
+        /// </summary>
+        internal readonly bool LowPowerPtc;
+
         /// <summary>
         /// Control if the guest application should be told that there is a Internet connection available.
         /// </summary>
@@ -198,6 +203,7 @@ namespace Ryujinx.HLE
                                 bool enableVsync,
                                 bool enableDockedMode,
                                 bool enablePtc,
+                                bool lowPowerPtc,
                                 bool enableInternetAccess,
                                 IntegrityCheckLevel fsIntegrityCheckLevel,
                                 int fsGlobalAccessLogMode,
@@ -228,6 +234,7 @@ namespace Ryujinx.HLE
             EnableVsync = enableVsync;
             EnableDockedMode = enableDockedMode;
             EnablePtc = enablePtc;
+            LowPowerPtc = lowPowerPtc;
             EnableInternetAccess = enableInternetAccess;
             FsIntegrityCheckLevel = fsIntegrityCheckLevel;
             FsGlobalAccessLogMode = fsGlobalAccessLogMode;

src/Ryujinx.HLE/HOS/ArmProcessContext.cs

@@ -13,7 +13,8 @@ namespace Ryujinx.HLE.HOS
             string displayVersion,
             bool diskCacheEnabled,
             ulong codeAddress,
-            ulong codeSize);
+            ulong codeSize,
+            string cacheSelector);
     }
 
     class ArmProcessContext<T> : IArmProcessContext where T : class, IVirtualMemoryManagerTracked, IMemoryManager
@@ -33,7 +34,8 @@ namespace Ryujinx.HLE.HOS
             GpuContext gpuContext,
             T memoryManager,
             ulong addressSpaceSize,
-            bool for64Bit)
+            bool for64Bit,
+            bool lowPower)
         {
             if (memoryManager is IRefCounted rc)
             {
@@ -44,7 +46,7 @@ namespace Ryujinx.HLE.HOS
 
             _pid = pid;
             _gpuContext = gpuContext;
-            _cpuContext = cpuEngine.CreateCpuContext(memoryManager, for64Bit);
+            _cpuContext = cpuEngine.CreateCpuContext(memoryManager, for64Bit, lowPower);
             _memoryManager = memoryManager;
 
             AddressSpaceSize = addressSpaceSize;
@@ -67,10 +69,11 @@ namespace Ryujinx.HLE.HOS
             string displayVersion,
             bool diskCacheEnabled,
             ulong codeAddress,
-            ulong codeSize)
+            ulong codeSize,
+            string cacheSelector)
         {
             _cpuContext.PrepareCodeRange(codeAddress, codeSize);
-            return _cpuContext.LoadDiskCache(titleIdText, displayVersion, diskCacheEnabled);
+            return _cpuContext.LoadDiskCache(titleIdText, displayVersion, diskCacheEnabled, cacheSelector);
         }
 
         public void InvalidateCacheRegion(ulong address, ulong size)

src/Ryujinx.HLE/HOS/ArmProcessContextFactory.cs

@@ -48,12 +48,13 @@ namespace Ryujinx.HLE.HOS
             IArmProcessContext processContext;
 
             bool isArm64Host = RuntimeInformation.ProcessArchitecture == Architecture.Arm64;
+            bool isLowPower = context.Device.Configuration.LowPowerPtc;
 
             if (OperatingSystem.IsMacOS() && isArm64Host && for64Bit && context.Device.Configuration.UseHypervisor)
             {
                 var cpuEngine = new HvEngine(_tickSource);
                 var memoryManager = new HvMemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
-                processContext = new ArmProcessContext<HvMemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit);
+                processContext = new ArmProcessContext<HvMemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit, isLowPower);
             }
             else
             {
@@ -87,7 +88,7 @@ namespace Ryujinx.HLE.HOS
                 {
                     case MemoryManagerMode.SoftwarePageTable:
                         var memoryManager = new MemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
-                        processContext = new ArmProcessContext<MemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit);
+                        processContext = new ArmProcessContext<MemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit, isLowPower);
                         break;
 
                     case MemoryManagerMode.HostMapped:
@@ -95,7 +96,7 @@ namespace Ryujinx.HLE.HOS
                         if (addressSpace == null)
                         {
                             var memoryManagerHostTracked = new MemoryManagerHostTracked(context.Memory, addressSpaceSize, mode == MemoryManagerMode.HostMappedUnsafe, invalidAccessHandler);
-                            processContext = new ArmProcessContext<MemoryManagerHostTracked>(pid, cpuEngine, _gpu, memoryManagerHostTracked, addressSpaceSize, for64Bit);
+                            processContext = new ArmProcessContext<MemoryManagerHostTracked>(pid, cpuEngine, _gpu, memoryManagerHostTracked, addressSpaceSize, for64Bit, isLowPower);
                         }
                         else
                         {
@@ -105,7 +106,7 @@ namespace Ryujinx.HLE.HOS
                             }
 
                             var memoryManagerHostMapped = new MemoryManagerHostMapped(addressSpace, mode == MemoryManagerMode.HostMappedUnsafe, invalidAccessHandler);
-                            processContext = new ArmProcessContext<MemoryManagerHostMapped>(pid, cpuEngine, _gpu, memoryManagerHostMapped, addressSpace.AddressSpaceSize, for64Bit);
+                            processContext = new ArmProcessContext<MemoryManagerHostMapped>(pid, cpuEngine, _gpu, memoryManagerHostMapped, addressSpace.AddressSpaceSize, for64Bit, isLowPower);
                         }
                         break;
 
@@ -114,7 +115,7 @@ namespace Ryujinx.HLE.HOS
                 }
             }
 
-            DiskCacheLoadState = processContext.Initialize(_titleIdText, _displayVersion, _diskCacheEnabled, _codeAddress, _codeSize);
+            DiskCacheLoadState = processContext.Initialize(_titleIdText, _displayVersion, _diskCacheEnabled, _codeAddress, _codeSize, isLowPower ? "LowPower" : "HighPower");
 
             return processContext;
         }

src/Ryujinx.Headless.SDL2/Options.cs

@@ -106,6 +106,9 @@ namespace Ryujinx.Headless.SDL2
         [Option("disable-ptc", Required = false, HelpText = "Disables profiled persistent translation cache.")]
         public bool DisablePTC { get; set; }
 
+        [Option("low-power-ptc", Required = false, HelpText = "Increases PTC performance for low power systems.")]
+        public bool LowPowerPTC { get; set; }
+
         [Option("enable-internet-connection", Required = false, Default = false, HelpText = "Enables guest Internet connection.")]
         public bool EnableInternetAccess { get; set; }
 

src/Ryujinx.Headless.SDL2/Program.cs

@@ -566,6 +566,7 @@ namespace Ryujinx.Headless.SDL2
                 !options.DisableVSync,
                 !options.DisableDockedMode,
                 !options.DisablePTC,
+                options.LowPowerPTC,
                 options.EnableInternetAccess,
                 !options.DisableFsIntegrityChecks ? IntegrityCheckLevel.ErrorOnInvalid : IntegrityCheckLevel.None,
                 options.FsGlobalAccessLogMode,

src/Ryujinx.Tests/Cpu/CpuContext.cs

@@ -11,9 +11,9 @@ namespace Ryujinx.Tests.Cpu
     {
         private readonly Translator _translator;
 
-        public CpuContext(IMemoryManager memory, bool for64Bit)
+        public CpuContext(IMemoryManager memory, bool for64Bit, bool lowPower)
         {
-            _translator = new Translator(new JitMemoryAllocator(), memory, AddressTable<ulong>.CreateForArm(for64Bit, memory.Type));
+            _translator = new Translator(new JitMemoryAllocator(), memory, AddressTable<ulong>.CreateForArm(for64Bit, memory.Type, lowPower));
             memory.UnmapEvent += UnmapHandler;
         }
 

src/Ryujinx.Tests/Cpu/CpuTest.cs

@@ -62,7 +62,7 @@ namespace Ryujinx.Tests.Cpu
 
             _context = CpuContext.CreateExecutionContext();
 
-            _cpuContext = new CpuContext(_memory, for64Bit: true);
+            _cpuContext = new CpuContext(_memory, for64Bit: true, lowPower: false);
 
             // Prevent registering LCQ functions in the FunctionTable to avoid initializing and populating the table,
             // which improves test durations.

src/Ryujinx.Tests/Cpu/CpuTest32.cs

@@ -57,7 +57,7 @@ namespace Ryujinx.Tests.Cpu
             _context = CpuContext.CreateExecutionContext();
             _context.IsAarch32 = true;
 
-            _cpuContext = new CpuContext(_memory, for64Bit: false);
+            _cpuContext = new CpuContext(_memory, for64Bit: false, lowPower: false);
 
             // Prevent registering LCQ functions in the FunctionTable to avoid initializing and populating the table,
             // which improves test durations.

src/Ryujinx.Tests/Cpu/EnvironmentTests.cs

@@ -22,7 +22,7 @@ namespace Ryujinx.Tests.Cpu
             _translator ??= new Translator(
                 new JitMemoryAllocator(), 
                 new MockMemoryManager(),
-                AddressTable<ulong>.CreateForArm(true, MemoryManagerType.SoftwarePageTable));
+                AddressTable<ulong>.CreateForArm(true, MemoryManagerType.SoftwarePageTable, lowPower: false));
         }
 
         [MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.NoOptimization)]

src/Ryujinx.Tests/Memory/PartialUnmaps.cs

@@ -58,7 +58,7 @@ namespace Ryujinx.Tests.Memory
             _translator ??= new Translator(
                 new JitMemoryAllocator(), 
                 new MockMemoryManager(), 
-                AddressTable<ulong>.CreateForArm(true, MemoryManagerType.SoftwarePageTable));
+                AddressTable<ulong>.CreateForArm(true, MemoryManagerType.SoftwarePageTable, lowPower: false));
         }
 
         [Test]

src/Ryujinx/AppHost.cs

@@ -871,6 +871,7 @@ namespace Ryujinx.Ava
                 ConfigurationState.Instance.Graphics.EnableVsync,
                 ConfigurationState.Instance.System.EnableDockedMode,
                 ConfigurationState.Instance.System.EnablePtc,
+                ConfigurationState.Instance.System.EnableLowPowerPtc,
                 ConfigurationState.Instance.System.EnableInternetAccess,
                 ConfigurationState.Instance.System.EnableFsIntegrityChecks ? IntegrityCheckLevel.ErrorOnInvalid : IntegrityCheckLevel.None,
                 ConfigurationState.Instance.System.FsGlobalAccessLogMode,