mirror of
https://github.com/GreemDev/Ryujinx.git
synced 2024-12-11 09:46:01 +01:00
9f6b24edfd
* Implement session count decrement when the handle is closed * Remove unused field * Implement SendSyncRequestWithUserBuffer, SendAsyncRequestWithUserBuffer and ReplyAndReceiveWithUserBuffer syscalls * Nits * Fix swapped copy dst/src * Add missing pointer buffer descriptor write on reply * Fix IPC unaligned buffer copy and restoring client attributes on reply * Oops * Fix SetIpcMappingPermission * Fix unaligned copy bugs * Free memory used for temporary IPC buffers
123 lines
3.6 KiB
C#
123 lines
3.6 KiB
C#
using System;
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namespace Ryujinx.HLE.HOS.Kernel.Memory
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{
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class KMemoryBlock
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{
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public ulong BaseAddress { get; private set; }
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public ulong PagesCount { get; private set; }
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public MemoryState State { get; private set; }
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public MemoryPermission Permission { get; private set; }
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public MemoryAttribute Attribute { get; private set; }
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public MemoryPermission SourcePermission { get; private set; }
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public int IpcRefCount { get; private set; }
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public int DeviceRefCount { get; private set; }
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public KMemoryBlock(
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ulong baseAddress,
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ulong pagesCount,
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MemoryState state,
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MemoryPermission permission,
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MemoryAttribute attribute,
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int ipcRefCount = 0,
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int deviceRefCount = 0)
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{
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BaseAddress = baseAddress;
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PagesCount = pagesCount;
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State = state;
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Attribute = attribute;
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Permission = permission;
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IpcRefCount = ipcRefCount;
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DeviceRefCount = deviceRefCount;
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}
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public void SetState(MemoryPermission permission, MemoryState state, MemoryAttribute attribute)
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{
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Permission = permission;
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State = state;
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Attribute &= MemoryAttribute.IpcAndDeviceMapped;
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Attribute |= attribute;
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}
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public void SetIpcMappingPermission(MemoryPermission newPermission)
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{
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int oldIpcRefCount = IpcRefCount++;
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if ((ushort)IpcRefCount == 0)
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{
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throw new InvalidOperationException("IPC reference count increment overflowed.");
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}
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if (oldIpcRefCount == 0)
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{
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SourcePermission = Permission;
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Permission &= ~MemoryPermission.ReadAndWrite;
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Permission |= MemoryPermission.ReadAndWrite & newPermission;
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}
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Attribute |= MemoryAttribute.IpcMapped;
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}
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public void RestoreIpcMappingPermission()
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{
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int oldIpcRefCount = IpcRefCount--;
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if (oldIpcRefCount == 0)
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{
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throw new InvalidOperationException("IPC reference count decrement underflowed.");
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}
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if (oldIpcRefCount == 1)
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{
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Permission = SourcePermission;
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SourcePermission = MemoryPermission.None;
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Attribute &= ~MemoryAttribute.IpcMapped;
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}
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}
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public KMemoryBlock SplitRightAtAddress(ulong address)
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{
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ulong leftAddress = BaseAddress;
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ulong leftPagesCount = (address - leftAddress) / KMemoryManager.PageSize;
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BaseAddress = address;
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PagesCount -= leftPagesCount;
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return new KMemoryBlock(
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leftAddress,
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leftPagesCount,
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State,
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Permission,
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Attribute,
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IpcRefCount,
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DeviceRefCount);
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}
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public void AddPages(ulong pagesCount)
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{
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PagesCount += pagesCount;
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}
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public KMemoryInfo GetInfo()
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{
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ulong size = PagesCount * KMemoryManager.PageSize;
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return new KMemoryInfo(
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BaseAddress,
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size,
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State,
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Permission,
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Attribute,
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SourcePermission,
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IpcRefCount,
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DeviceRefCount);
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}
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}
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} |