mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-20 15:48:43 +02:00
* Refactoring of KMemoryManager class * Replace some trivial uses of DRAM address with VA * Get rid of GetDramAddressFromVa * Abstracting more operations on derived page table class * Run auto-format on KPageTableBase * Managed to make TryConvertVaToPa private, few uses remains now * Implement guest physical pages ref counting, remove manual freeing * Make DoMmuOperation private and call new abstract methods only from the base class * Pass pages count rather than size on Map/UnmapMemory * Change memory managers to take host pointers * Fix a guest memory leak and simplify KPageTable * Expose new methods for host range query and mapping * Some refactoring of MapPagesFromClientProcess to allow proper page ref counting and mapping without KPageLists * Remove more uses of AddVaRangeToPageList, now only one remains (shared memory page checking) * Add a SharedMemoryStorage class, will be useful for host mapping * Sayonara AddVaRangeToPageList, you served us well * Start to implement host memory mapping (WIP) * Support memory tracking through host exception handling * Fix some access violations from HLE service guest memory access and CPU * Fix memory tracking * Fix mapping list bugs, including a race and a error adding mapping ranges * Simple page table for memory tracking * Simple "volatile" region handle mode * Update UBOs directly (experimental, rough) * Fix the overlap check * Only set non-modified buffers as volatile * Fix some memory tracking issues * Fix possible race in MapBufferFromClientProcess (block list updates were not locked) * Write uniform update to memory immediately, only defer the buffer set. * Fix some memory tracking issues * Pass correct pages count on shared memory unmap * Armeilleure Signal Handler v1 + Unix changes Unix currently behaves like windows, rather than remapping physical * Actually check if the host platform is unix * Fix decommit on linux. * Implement windows 10 placeholder shared memory, fix a buffer issue. * Make PTC version something that will never match with master * Remove testing variable for block count * Add reference count for memory manager, fix dispose Can still deadlock with OpenAL * Add address validation, use page table for mapped check, add docs Might clean up the page table traversing routines. * Implement batched mapping/tracking. * Move documentation, fix tests. * Cleanup uniform buffer update stuff. * Remove unnecessary assignment. * Add unsafe host mapped memory switch On by default. Would be good to turn this off for untrusted code (homebrew, exefs mods) and give the user the option to turn it on manually, though that requires some UI work. * Remove C# exception handlers They have issues due to current .NET limitations, so the meilleure one fully replaces them for now. * Fix MapPhysicalMemory on the software MemoryManager. * Null check for GetHostAddress, docs * Add configuration for setting memory manager mode (not in UI yet) * Add config to UI * Fix type mismatch on Unix signal handler code emit * Fix 6GB DRAM mode. The size can be greater than `uint.MaxValue` when the DRAM is >4GB. * Address some feedback. * More detailed error if backing memory cannot be mapped. * SetLastError on all OS functions for consistency * Force pages dirty with UBO update instead of setting them directly. Seems to be much faster across a few games. Need retesting. * Rebase, configuration rework, fix mem tracking regression * Fix race in FreePages * Set memory managers null after decrementing ref count * Remove readonly keyword, as this is now modified. * Use a local variable for the signal handler rather than a register. * Fix bug with buffer resize, and index/uniform buffer binding. Should fix flickering in games. * Add InvalidAccessHandler to MemoryTracking Doesn't do anything yet * Call invalid access handler on unmapped read/write. Same rules as the regular memory manager. * Make unsafe mapped memory its own MemoryManagerType * Move FlushUboDirty into UpdateState. * Buffer dirty cache, rather than ubo cache Much cleaner, may be reusable for Inline2Memory updates. * This doesn't return anything anymore. * Add sigaction remove methods, correct a few function signatures. * Return empty list of physical regions for size 0. * Also on AddressSpaceManager Co-authored-by: gdkchan <gab.dark.100@gmail.com>
301 lines
9.8 KiB
C#
301 lines
9.8 KiB
C#
using Ryujinx.Memory.WindowsShared;
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Memory
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{
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static class MemoryManagementWindows
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{
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private static readonly IntPtr InvalidHandleValue = new IntPtr(-1);
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private static bool UseWin10Placeholders;
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private static object _emulatedHandleLock = new object();
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private static EmulatedSharedMemoryWindows[] _emulatedShared = new EmulatedSharedMemoryWindows[64];
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private static List<EmulatedSharedMemoryWindows> _emulatedSharedList = new List<EmulatedSharedMemoryWindows>();
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern IntPtr VirtualAlloc(
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IntPtr lpAddress,
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IntPtr dwSize,
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AllocationType flAllocationType,
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MemoryProtection flProtect);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern bool VirtualProtect(
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IntPtr lpAddress,
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IntPtr dwSize,
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MemoryProtection flNewProtect,
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out MemoryProtection lpflOldProtect);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern bool VirtualFree(IntPtr lpAddress, IntPtr dwSize, AllocationType dwFreeType);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern IntPtr CreateFileMapping(
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IntPtr hFile,
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IntPtr lpFileMappingAttributes,
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FileMapProtection flProtect,
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uint dwMaximumSizeHigh,
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uint dwMaximumSizeLow,
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[MarshalAs(UnmanagedType.LPWStr)] string lpName);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern bool CloseHandle(IntPtr hObject);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern IntPtr MapViewOfFile(
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IntPtr hFileMappingObject,
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uint dwDesiredAccess,
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uint dwFileOffsetHigh,
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uint dwFileOffsetLow,
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IntPtr dwNumberOfBytesToMap);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern bool UnmapViewOfFile(IntPtr lpBaseAddress);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern uint GetLastError();
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static MemoryManagementWindows()
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{
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Version version = Environment.OSVersion.Version;
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UseWin10Placeholders = (version.Major == 10 && version.Build >= 17134) || version.Major > 10;
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}
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public static IntPtr Allocate(IntPtr size)
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{
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return AllocateInternal(size, AllocationType.Reserve | AllocationType.Commit);
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}
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public static IntPtr Reserve(IntPtr size)
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{
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return AllocateInternal(size, AllocationType.Reserve);
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}
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private static IntPtr AllocateInternal(IntPtr size, AllocationType flags = 0)
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{
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IntPtr ptr = VirtualAlloc(IntPtr.Zero, size, flags, MemoryProtection.ReadWrite);
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if (ptr == IntPtr.Zero)
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{
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throw new OutOfMemoryException();
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}
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return ptr;
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}
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public static bool Commit(IntPtr location, IntPtr size)
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{
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if (UseWin10Placeholders)
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{
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lock (_emulatedSharedList)
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{
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foreach (var shared in _emulatedSharedList)
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{
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if (shared.CommitMap(location, size))
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{
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return true;
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}
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}
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}
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}
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return VirtualAlloc(location, size, AllocationType.Commit, MemoryProtection.ReadWrite) != IntPtr.Zero;
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}
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public static bool Decommit(IntPtr location, IntPtr size)
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{
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if (UseWin10Placeholders)
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{
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lock (_emulatedSharedList)
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{
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foreach (var shared in _emulatedSharedList)
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{
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if (shared.DecommitMap(location, size))
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{
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return true;
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}
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}
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}
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}
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return VirtualFree(location, size, AllocationType.Decommit);
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}
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public static bool Reprotect(IntPtr address, IntPtr size, MemoryPermission permission)
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{
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if (UseWin10Placeholders)
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{
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ulong uaddress = (ulong)address;
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ulong usize = (ulong)size;
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while (usize > 0)
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{
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ulong nextGranular = (uaddress & ~EmulatedSharedMemoryWindows.MappingMask) + EmulatedSharedMemoryWindows.MappingGranularity;
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ulong mapSize = Math.Min(usize, nextGranular - uaddress);
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if (!VirtualProtect((IntPtr)uaddress, (IntPtr)mapSize, GetProtection(permission), out _))
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{
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return false;
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}
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uaddress = nextGranular;
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usize -= mapSize;
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}
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return true;
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}
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else
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{
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return VirtualProtect(address, size, GetProtection(permission), out _);
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}
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}
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private static MemoryProtection GetProtection(MemoryPermission permission)
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{
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return permission switch
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{
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MemoryPermission.None => MemoryProtection.NoAccess,
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MemoryPermission.Read => MemoryProtection.ReadOnly,
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MemoryPermission.ReadAndWrite => MemoryProtection.ReadWrite,
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MemoryPermission.ReadAndExecute => MemoryProtection.ExecuteRead,
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MemoryPermission.ReadWriteExecute => MemoryProtection.ExecuteReadWrite,
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MemoryPermission.Execute => MemoryProtection.Execute,
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_ => throw new MemoryProtectionException(permission)
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};
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}
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public static bool Free(IntPtr address)
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{
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return VirtualFree(address, IntPtr.Zero, AllocationType.Release);
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}
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private static int GetEmulatedHandle()
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{
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// Assumes we have the handle lock.
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for (int i = 0; i < _emulatedShared.Length; i++)
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{
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if (_emulatedShared[i] == null)
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{
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return i + 1;
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}
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}
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throw new InvalidProgramException("Too many shared memory handles were created.");
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}
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public static bool EmulatedHandleValid(ref int handle)
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{
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handle--;
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return handle >= 0 && handle < _emulatedShared.Length && _emulatedShared[handle] != null;
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}
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public static IntPtr CreateSharedMemory(IntPtr size, bool reserve)
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{
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if (UseWin10Placeholders && reserve)
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{
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lock (_emulatedHandleLock)
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{
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int handle = GetEmulatedHandle();
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_emulatedShared[handle - 1] = new EmulatedSharedMemoryWindows((ulong)size);
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_emulatedSharedList.Add(_emulatedShared[handle - 1]);
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return (IntPtr)handle;
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}
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}
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else
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{
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var prot = reserve ? FileMapProtection.SectionReserve : FileMapProtection.SectionCommit;
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IntPtr handle = CreateFileMapping(
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InvalidHandleValue,
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IntPtr.Zero,
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FileMapProtection.PageReadWrite | prot,
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(uint)(size.ToInt64() >> 32),
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(uint)size.ToInt64(),
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null);
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if (handle == IntPtr.Zero)
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{
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throw new OutOfMemoryException();
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}
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return handle;
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}
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}
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public static void DestroySharedMemory(IntPtr handle)
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{
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if (UseWin10Placeholders)
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{
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lock (_emulatedHandleLock)
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{
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int iHandle = (int)(ulong)handle;
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if (EmulatedHandleValid(ref iHandle))
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{
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_emulatedSharedList.Remove(_emulatedShared[iHandle]);
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_emulatedShared[iHandle].Dispose();
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_emulatedShared[iHandle] = null;
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return;
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}
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}
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}
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if (!CloseHandle(handle))
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{
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throw new ArgumentException("Invalid handle.", nameof(handle));
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}
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}
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public static IntPtr MapSharedMemory(IntPtr handle)
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{
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if (UseWin10Placeholders)
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{
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lock (_emulatedHandleLock)
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{
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int iHandle = (int)(ulong)handle;
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if (EmulatedHandleValid(ref iHandle))
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{
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return _emulatedShared[iHandle].Map();
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}
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}
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}
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IntPtr ptr = MapViewOfFile(handle, 4 | 2, 0, 0, IntPtr.Zero);
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if (ptr == IntPtr.Zero)
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{
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throw new OutOfMemoryException();
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}
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return ptr;
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}
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public static void UnmapSharedMemory(IntPtr address)
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{
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if (UseWin10Placeholders)
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{
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lock (_emulatedHandleLock)
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{
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foreach (EmulatedSharedMemoryWindows shared in _emulatedSharedList)
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{
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if (shared.Unmap((ulong)address))
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{
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return;
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}
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}
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}
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}
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if (!UnmapViewOfFile(address))
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{
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throw new ArgumentException("Invalid address.", nameof(address));
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}
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}
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}
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} |