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https://git.ryujinx.app/projects/Kenji-NX.git
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Babib3l
b707c73f83
This PR threads process/program identity into PTC disk cache initialization so cache ownership is selected from the launched process rather than global/shared application state.
Previously, the PTC initialization path only propagated loose title/version information into the CPU layer. That was mostly fine for a single launched application, but will introduce many problems once multiple programs can be launched during the same session, given later processes could inherit cache identity from the first loaded application.
To address this issue, this PR introduces a `PtcCacheInfo` payload and applies it through the process context, CPU context, translator, and PTC initialization paths. Cache ownership is now resolved once the kernel process PID is known and includes:
- PID
- Program ID / Title ID
- Application ID
- Program index
- Display version
- Process kind
- Cache selector
`PtcCacheInfo` now owns its default title/application/version values, and `Ptc` uses that cache info directly instead of mirroring title/version fields internally.
The persistent cache key itself does remains title/version/selector based rather than PID based, so caches remain reusable across launches while still being selected from the correct process context. PID is only used for diagnostics and ownership tracing in logs.
Additional PTC logging has also been added to report cache ownership and selected paths during PTC initialization, Profiling info load/save and translation cache load/save
Both the PTC and profiler internal versions were bumped (a bunch of times lol).
(cherry picked from commit 7101f52c01)
64 lines
3.1 KiB
C#
64 lines
3.1 KiB
C#
using System;
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using ARMeilleure.Translation.PTC;
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namespace Ryujinx.Cpu
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{
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/// <summary>
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/// CPU context interface.
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/// </summary>
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public interface ICpuContext : IDisposable
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{
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/// <summary>
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/// Creates a new execution context that will store thread CPU register state when executing guest code.
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/// </summary>
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/// <param name="exceptionCallbacks">Optional functions to be called when the CPU receives an interrupt</param>
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/// <returns>Execution context</returns>
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IExecutionContext CreateExecutionContext(ExceptionCallbacks exceptionCallbacks);
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/// <summary>
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/// Starts executing code at a specified entry point address.
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/// </summary>
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/// <remarks>
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/// This function only returns when the execution is stopped, by calling <see cref="IExecutionContext.StopRunning"/>.
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/// </remarks>
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/// <param name="context">Execution context to be used for this run</param>
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/// <param name="address">Entry point address</param>
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void Execute(IExecutionContext context, ulong address);
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/// <summary>
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/// Invalidates the instruction cache for a given memory region.
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/// </summary>
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/// <remarks>
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/// This should be called if code is modified to make the CPU emulator aware of the modifications,
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/// otherwise it might run stale code which will lead to errors and crashes.
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/// Calling this function is not necessary if the code memory was modified by guest code,
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/// as the expectation is that it will do it on its own using the appropriate cache invalidation instructions,
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/// except on Arm32 where those instructions can't be used in unprivileged mode.
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/// </remarks>
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/// <param name="address">Address of the region to be invalidated</param>
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/// <param name="size">Size of the region to be invalidated</param>
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void InvalidateCacheRegion(ulong address, ulong size);
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/// <summary>
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/// Loads cached code from disk for a given application.
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/// </summary>
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/// <remarks>
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/// If the execution engine is recompiling guest code, this can be used to load cached code from disk.
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/// </remarks>
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/// <param name="cacheInfo">Identity and selector for the process-owned disk cache</param>
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/// <param name="enabled">True if the cache should be loaded from disk if it exists, false otherwise</param>
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/// <returns>Disk cache load progress reporter and manager</returns>
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IDiskCacheLoadState LoadDiskCache(PtcCacheInfo cacheInfo, bool enabled);
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/// <summary>
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/// Indicates that code has been loaded into guest memory, and that it might be executed in the future.
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/// </summary>
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/// <remarks>
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/// Some execution engines might use this information to cache recompiled code on disk or to ensure it can be executed.
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/// </remarks>
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/// <param name="address">CPU virtual address where the code starts</param>
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/// <param name="size">Size of the code range in bytes</param>
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void PrepareCodeRange(ulong address, ulong size);
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}
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}
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