mirror of
https://github.com/GreemDev/Ryujinx.git
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08831eecf7
* IPC refactor part 3 + 4: New server HIPC message processor with source generator based serialization * Make types match on calls to AlignUp/AlignDown * Formatting * Address some PR feedback * Move BitfieldExtensions to Ryujinx.Common.Utilities and consolidate implementations * Rename Reader/Writer to SpanReader/SpanWriter and move to Ryujinx.Common.Memory * Implement EventType * Address more PR feedback * Log request processing errors since they are not normal * Rename waitable to multiwait and add missing lock * PR feedback * Ac_K PR feedback
169 lines
No EOL
4.8 KiB
C#
169 lines
No EOL
4.8 KiB
C#
using Ryujinx.Common;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using Ryujinx.Horizon.Common;
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using System;
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using System.Diagnostics;
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namespace Ryujinx.HLE.HOS.Kernel.Memory
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{
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class KCodeMemory : KAutoObject
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{
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public KProcess Owner { get; private set; }
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private readonly KPageList _pageList;
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private readonly object _lock;
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private ulong _address;
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private bool _isOwnerMapped;
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private bool _isMapped;
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public KCodeMemory(KernelContext context) : base(context)
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{
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_pageList = new KPageList();
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_lock = new object();
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}
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public Result Initialize(ulong address, ulong size)
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{
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Owner = KernelStatic.GetCurrentProcess();
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Result result = Owner.MemoryManager.BorrowCodeMemory(_pageList, address, size);
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if (result != Result.Success)
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{
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return result;
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}
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Owner.CpuMemory.Fill(address, size, 0xff);
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Owner.IncrementReferenceCount();
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_address = address;
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_isMapped = false;
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_isOwnerMapped = false;
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return Result.Success;
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}
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public Result Map(ulong address, ulong size, KMemoryPermission perm)
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{
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if (_pageList.GetPagesCount() != BitUtils.DivRoundUp<ulong>(size, (ulong)KPageTableBase.PageSize))
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{
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return KernelResult.InvalidSize;
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}
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lock (_lock)
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{
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if (_isMapped)
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{
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return KernelResult.InvalidState;
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}
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KProcess process = KernelStatic.GetCurrentProcess();
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Result result = process.MemoryManager.MapPages(address, _pageList, MemoryState.CodeWritable, KMemoryPermission.ReadAndWrite);
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if (result != Result.Success)
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{
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return result;
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}
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_isMapped = true;
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}
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return Result.Success;
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}
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public Result MapToOwner(ulong address, ulong size, KMemoryPermission permission)
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{
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if (_pageList.GetPagesCount() != BitUtils.DivRoundUp<ulong>(size, (ulong)KPageTableBase.PageSize))
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{
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return KernelResult.InvalidSize;
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}
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lock (_lock)
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{
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if (_isOwnerMapped)
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{
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return KernelResult.InvalidState;
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}
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Debug.Assert(permission == KMemoryPermission.Read || permission == KMemoryPermission.ReadAndExecute);
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Result result = Owner.MemoryManager.MapPages(address, _pageList, MemoryState.CodeReadOnly, permission);
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if (result != Result.Success)
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{
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return result;
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}
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_isOwnerMapped = true;
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}
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return Result.Success;
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}
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public Result Unmap(ulong address, ulong size)
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{
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if (_pageList.GetPagesCount() != BitUtils.DivRoundUp<ulong>(size, (ulong)KPageTableBase.PageSize))
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{
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return KernelResult.InvalidSize;
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}
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lock (_lock)
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{
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KProcess process = KernelStatic.GetCurrentProcess();
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Result result = process.MemoryManager.UnmapPages(address, _pageList, MemoryState.CodeWritable);
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if (result != Result.Success)
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{
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return result;
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}
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Debug.Assert(_isMapped);
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_isMapped = false;
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}
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return Result.Success;
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}
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public Result UnmapFromOwner(ulong address, ulong size)
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{
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if (_pageList.GetPagesCount() != BitUtils.DivRoundUp<ulong>(size, KPageTableBase.PageSize))
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{
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return KernelResult.InvalidSize;
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}
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lock (_lock)
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{
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Result result = Owner.MemoryManager.UnmapPages(address, _pageList, MemoryState.CodeReadOnly);
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if (result != Result.Success)
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{
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return result;
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}
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Debug.Assert(_isOwnerMapped);
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_isOwnerMapped = false;
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}
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return Result.Success;
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}
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protected override void Destroy()
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{
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if (!_isMapped && !_isOwnerMapped)
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{
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ulong size = _pageList.GetPagesCount() * KPageTableBase.PageSize;
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if (Owner.MemoryManager.UnborrowCodeMemory(_address, size, _pageList) != Result.Success)
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{
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throw new InvalidOperationException("Unexpected failure restoring transfer memory attributes.");
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}
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}
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Owner.DecrementReferenceCount();
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}
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}
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} |