Mirrors/Ryujinx
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Rewrite scheduler context switch code (#1786)

Browse source 
* Rewrite scheduler context switch code

* Fix race in UnmapIpcRestorePermission

* Fix thread exit issue that could leave the scheduler in a invalid state

* Change context switch method to not wait on guest thread, remove spin wait, use SignalAndWait to pass control

* Remove multi-core setting (it is always on now)

* Re-enable assert

* Remove multicore from default config and schema

* Fix race in KTimeManager
This commit is contained in:
gdkchan 2020-12-09 19:20:05 -03:00 • committed by GitHub
parent 3484265d37
commit 48278905d1
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
37 changed files with 1080 additions and 1160 deletions
Download patch file Download diff file Expand all files Collapse all files

44
Ryujinx.HLE/HOS/Services/ServerBase.cs
View file

@ -30,7 +30,7 @@ namespace Ryujinx.HLE.HOS.Services
};
private readonly KernelContext _context;
private readonly KProcess _selfProcess;
private KProcess _selfProcess;
private readonly List<int> _sessionHandles = new List<int>();
private readonly List<int> _portHandles = new List<int>();
@ -55,11 +55,7 @@ namespace Ryujinx.HLE.HOS.Services
ProcessCreationInfo creationInfo = new ProcessCreationInfo("Service", 1, 0, 0x8000000, 1, flags, 0, 0);
context.Syscall.CreateProcess(creationInfo, DefaultCapabilities, out int handle, null, ServerLoop);
_selfProcess = context.Scheduler.GetCurrentProcess().HandleTable.GetKProcess(handle);
context.Syscall.StartProcess(handle, 44, 3, 0x1000);
KernelStatic.StartInitialProcess(context, creationInfo, DefaultCapabilities, 44, ServerLoop);
}
private void AddPort(int serverPortHandle, IpcService obj)
@ -82,6 +78,8 @@ namespace Ryujinx.HLE.HOS.Services
private void ServerLoop()
{
_selfProcess = KernelStatic.GetCurrentProcess();
if (SmObject != null)
{
_context.Syscall.ManageNamedPort("sm:", 50, out int serverPortHandle);
@ -95,7 +93,7 @@ namespace Ryujinx.HLE.HOS.Services
InitDone.Dispose();
}
KThread thread = _context.Scheduler.GetCurrentThread();
KThread thread = KernelStatic.GetCurrentThread();
ulong messagePtr = thread.TlsAddress;
_context.Syscall.SetHeapSize(0x200000, out ulong heapAddr);
@ -107,18 +105,14 @@ namespace Ryujinx.HLE.HOS.Services
while (true)
{
int[] handles = _portHandles.ToArray();
int[] portHandles = _portHandles.ToArray();
int[] sessionHandles = _sessionHandles.ToArray();
int[] handles = new int[portHandles.Length + sessionHandles.Length];
for (int i = 0; i < handles.Length; i++)
{
if (_context.Syscall.AcceptSession(handles[i], out int serverSessionHandle) == KernelResult.Success)
{
AddSessionObj(serverSessionHandle, _ports[handles[i]]);
}
}
handles = _sessionHandles.ToArray();
portHandles.CopyTo(handles, 0);
sessionHandles.CopyTo(handles, portHandles.Length);
// We still need a timeout here to allow the service to pick up and listen new sessions...
var rc = _context.Syscall.ReplyAndReceive(handles, replyTargetHandle, 1000000L, out int signaledIndex);
thread.HandlePostSyscall();
@ -130,8 +124,9 @@ namespace Ryujinx.HLE.HOS.Services
replyTargetHandle = 0;
if (rc == KernelResult.Success && signaledIndex != -1)
if (rc == KernelResult.Success && signaledIndex >= portHandles.Length)
{
// We got a IPC request, process it, pass to the appropriate service if needed.
int signaledHandle = handles[signaledIndex];
if (Process(signaledHandle, heapAddr))
@ -141,6 +136,15 @@ namespace Ryujinx.HLE.HOS.Services
}
else
{
if (rc == KernelResult.Success)
{
// We got a new connection, accept the session to allow servicing future requests.
if (_context.Syscall.AcceptSession(handles[signaledIndex], out int serverSessionHandle) == KernelResult.Success)
{
AddSessionObj(serverSessionHandle, _ports[handles[signaledIndex]]);
}
}
_selfProcess.CpuMemory.Write(messagePtr + 0x0, 0);
_selfProcess.CpuMemory.Write(messagePtr + 0x4, 2 << 10);
_selfProcess.CpuMemory.Write(messagePtr + 0x8, heapAddr | ((ulong)PointerBufferSize << 48));
@ -150,8 +154,8 @@ namespace Ryujinx.HLE.HOS.Services
private bool Process(int serverSessionHandle, ulong recvListAddr)
{
KProcess process = _context.Scheduler.GetCurrentProcess();
KThread thread = _context.Scheduler.GetCurrentThread();
KProcess process = KernelStatic.GetCurrentProcess();
KThread thread = KernelStatic.GetCurrentThread();
ulong messagePtr = thread.TlsAddress;
ulong messageSize = 0x100;