mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-18 22:58:43 +02:00
426 lines
15 KiB
C#
426 lines
15 KiB
C#
|
using NUnit.Framework;
|
|||
|
using Ryujinx.Memory.Tracking;
|
|||
|
using System;
|
|||
|
using System.Collections.Generic;
|
|||
|
using System.Diagnostics;
|
|||
|
using System.Threading;
|
|||
|
|
|||
|
namespace Ryujinx.Memory.Tests
|
|||
|
{
|
|||
|
public class TrackingTests
|
|||
|
{
|
|||
|
private const int RndCnt = 3;
|
|||
|
|
|||
|
private const ulong MemorySize = 0x8000;
|
|||
|
private const int PageSize = 4096;
|
|||
|
|
|||
|
private MemoryBlock _memoryBlock;
|
|||
|
private MemoryTracking _tracking;
|
|||
|
private MockVirtualMemoryManager _memoryManager;
|
|||
|
|
|||
|
[SetUp]
|
|||
|
public void Setup()
|
|||
|
{
|
|||
|
_memoryBlock = new MemoryBlock(MemorySize);
|
|||
|
_memoryManager = new MockVirtualMemoryManager(MemorySize, PageSize);
|
|||
|
_tracking = new MemoryTracking(_memoryManager, _memoryBlock, PageSize);
|
|||
|
}
|
|||
|
|
|||
|
[TearDown]
|
|||
|
public void Teardown()
|
|||
|
{
|
|||
|
_memoryBlock.Dispose();
|
|||
|
}
|
|||
|
|
|||
|
private bool TestSingleWrite(RegionHandle handle, ulong address, ulong size, bool physical = false)
|
|||
|
{
|
|||
|
handle.Reprotect();
|
|||
|
if (physical)
|
|||
|
{
|
|||
|
_tracking.PhysicalMemoryEvent(address, true);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
_tracking.VirtualMemoryEvent(address, size, true);
|
|||
|
}
|
|||
|
return handle.Dirty;
|
|||
|
}
|
|||
|
|
|||
|
[Test]
|
|||
|
public void SingleRegion()
|
|||
|
{
|
|||
|
RegionHandle handle = _tracking.BeginTracking(0, PageSize);
|
|||
|
(ulong address, ulong size)? readTrackingTriggered = null;
|
|||
|
handle.RegisterAction((address, size) =>
|
|||
|
{
|
|||
|
readTrackingTriggered = (address, size);
|
|||
|
});
|
|||
|
|
|||
|
bool dirtyInitial = handle.Dirty;
|
|||
|
Assert.True(dirtyInitial); // Handle starts dirty.
|
|||
|
|
|||
|
handle.Reprotect();
|
|||
|
|
|||
|
bool dirtyAfterReprotect = handle.Dirty;
|
|||
|
Assert.False(dirtyAfterReprotect); // Handle is no longer dirty.
|
|||
|
|
|||
|
_tracking.VirtualMemoryEvent(PageSize * 2, 4, true);
|
|||
|
_tracking.VirtualMemoryEvent(PageSize * 2, 4, false);
|
|||
|
|
|||
|
bool dirtyAfterUnrelatedReadWrite = handle.Dirty;
|
|||
|
Assert.False(dirtyAfterUnrelatedReadWrite); // Not dirtied, as the write was to an unrelated address.
|
|||
|
|
|||
|
Assert.IsNull(readTrackingTriggered); // Hasn't been triggered yet
|
|||
|
|
|||
|
_tracking.VirtualMemoryEvent(0, 4, false);
|
|||
|
|
|||
|
bool dirtyAfterRelatedRead = handle.Dirty;
|
|||
|
Assert.False(dirtyAfterRelatedRead); // Only triggers on write.
|
|||
|
Assert.AreEqual(readTrackingTriggered, (0UL, 4UL)); // Read action was triggered.
|
|||
|
|
|||
|
readTrackingTriggered = null;
|
|||
|
_tracking.VirtualMemoryEvent(0, 4, true);
|
|||
|
|
|||
|
bool dirtyAfterRelatedWrite = handle.Dirty;
|
|||
|
Assert.True(dirtyAfterRelatedWrite); // Dirty flag should now be set.
|
|||
|
|
|||
|
_tracking.VirtualMemoryEvent(4, 4, true);
|
|||
|
bool dirtyAfterRelatedWrite2 = handle.Dirty;
|
|||
|
Assert.True(dirtyAfterRelatedWrite2); // Dirty flag should still be set.
|
|||
|
|
|||
|
handle.Reprotect();
|
|||
|
|
|||
|
bool dirtyAfterReprotect2 = handle.Dirty;
|
|||
|
Assert.False(dirtyAfterReprotect2); // Handle is no longer dirty.
|
|||
|
|
|||
|
handle.Dispose();
|
|||
|
|
|||
|
bool dirtyAfterDispose = TestSingleWrite(handle, 0, 4);
|
|||
|
Assert.False(dirtyAfterDispose); // Handle cannot be triggered when disposed
|
|||
|
|
|||
|
bool dirtyAfterDispose2 = TestSingleWrite(handle, 0, 4, true);
|
|||
|
Assert.False(dirtyAfterDispose2);
|
|||
|
}
|
|||
|
|
|||
|
[Test]
|
|||
|
public void OverlappingRegions()
|
|||
|
{
|
|||
|
RegionHandle allHandle = _tracking.BeginTracking(0, PageSize * 16);
|
|||
|
allHandle.Reprotect();
|
|||
|
|
|||
|
(ulong address, ulong size)? readTrackingTriggeredAll = null;
|
|||
|
Action registerReadAction = () =>
|
|||
|
{
|
|||
|
readTrackingTriggeredAll = null;
|
|||
|
allHandle.RegisterAction((address, size) =>
|
|||
|
{
|
|||
|
readTrackingTriggeredAll = (address, size);
|
|||
|
});
|
|||
|
};
|
|||
|
registerReadAction();
|
|||
|
|
|||
|
// Create 16 page sized handles contained within the allHandle.
|
|||
|
RegionHandle[] containedHandles = new RegionHandle[16];
|
|||
|
|
|||
|
for (int i = 0; i < 16; i++)
|
|||
|
{
|
|||
|
containedHandles[i] = _tracking.BeginTracking((ulong)i * PageSize, PageSize);
|
|||
|
containedHandles[i].Reprotect();
|
|||
|
}
|
|||
|
|
|||
|
for (int i = 0; i < 16; i++)
|
|||
|
{
|
|||
|
// No handles are dirty.
|
|||
|
Assert.False(allHandle.Dirty);
|
|||
|
Assert.IsNull(readTrackingTriggeredAll);
|
|||
|
for (int j = 0; j < 16; j++)
|
|||
|
{
|
|||
|
Assert.False(containedHandles[j].Dirty);
|
|||
|
}
|
|||
|
|
|||
|
_tracking.VirtualMemoryEvent((ulong)i * PageSize, 1, true);
|
|||
|
|
|||
|
// Only the handle covering the entire range and the relevant contained handle are dirty.
|
|||
|
Assert.True(allHandle.Dirty);
|
|||
|
Assert.AreEqual(readTrackingTriggeredAll, ((ulong)i * PageSize, 1UL)); // Triggered read tracking
|
|||
|
for (int j = 0; j < 16; j++)
|
|||
|
{
|
|||
|
if (j == i)
|
|||
|
{
|
|||
|
Assert.True(containedHandles[j].Dirty);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
Assert.False(containedHandles[j].Dirty);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
// Clear flags and reset read action.
|
|||
|
registerReadAction();
|
|||
|
allHandle.Reprotect();
|
|||
|
containedHandles[i].Reprotect();
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
[Test]
|
|||
|
public void PageAlignment(
|
|||
|
[Values(1ul, 512ul, 2048ul, 4096ul, 65536ul)] [Random(1ul, 65536ul, RndCnt)] ulong address,
|
|||
|
[Values(1ul, 4ul, 1024ul, 4096ul, 65536ul)] [Random(1ul, 65536ul, RndCnt)] ulong size)
|
|||
|
{
|
|||
|
ulong alignedStart = (address / PageSize) * PageSize;
|
|||
|
ulong alignedEnd = ((address + size + PageSize - 1) / PageSize) * PageSize;
|
|||
|
ulong alignedSize = alignedEnd - alignedStart;
|
|||
|
|
|||
|
RegionHandle handle = _tracking.BeginTracking(address, size);
|
|||
|
|
|||
|
// Anywhere inside the pages the region is contained on should trigger.
|
|||
|
|
|||
|
bool originalRangeTriggers = TestSingleWrite(handle, address, size);
|
|||
|
Assert.True(originalRangeTriggers);
|
|||
|
|
|||
|
bool alignedRangeTriggers = TestSingleWrite(handle, alignedStart, alignedSize);
|
|||
|
Assert.True(alignedRangeTriggers);
|
|||
|
|
|||
|
bool alignedStartTriggers = TestSingleWrite(handle, alignedStart, 1);
|
|||
|
Assert.True(alignedStartTriggers);
|
|||
|
|
|||
|
bool alignedEndTriggers = TestSingleWrite(handle, alignedEnd - 1, 1);
|
|||
|
Assert.True(alignedEndTriggers);
|
|||
|
|
|||
|
// Outside the tracked range should not trigger.
|
|||
|
|
|||
|
bool alignedBeforeTriggers = TestSingleWrite(handle, alignedStart - 1, 1);
|
|||
|
Assert.False(alignedBeforeTriggers);
|
|||
|
|
|||
|
bool alignedAfterTriggers = TestSingleWrite(handle, alignedEnd, 1);
|
|||
|
Assert.False(alignedAfterTriggers);
|
|||
|
}
|
|||
|
|
|||
|
[Test, Timeout(1000)]
|
|||
|
public void Multithreading()
|
|||
|
{
|
|||
|
// Multithreading sanity test
|
|||
|
// Multiple threads can easily read/write memory regions from any existing handle.
|
|||
|
// Handles can also be owned by different threads, though they should have one owner thread.
|
|||
|
// Handles can be created and disposed at any time, by any thread.
|
|||
|
|
|||
|
// This test should not throw or deadlock due to invalid state.
|
|||
|
|
|||
|
const int threadCount = 1;
|
|||
|
const int handlesPerThread = 16;
|
|||
|
long finishedTime = 0;
|
|||
|
|
|||
|
RegionHandle[] handles = new RegionHandle[threadCount * handlesPerThread];
|
|||
|
Random globalRand = new Random();
|
|||
|
|
|||
|
for (int i = 0; i < handles.Length; i++)
|
|||
|
{
|
|||
|
handles[i] = _tracking.BeginTracking((ulong)i * PageSize, PageSize);
|
|||
|
handles[i].Reprotect();
|
|||
|
}
|
|||
|
|
|||
|
List<Thread> testThreads = new List<Thread>();
|
|||
|
|
|||
|
// Dirty flag consumer threads
|
|||
|
int dirtyFlagReprotects = 0;
|
|||
|
for (int i = 0; i < threadCount; i++)
|
|||
|
{
|
|||
|
int randSeed = i;
|
|||
|
testThreads.Add(new Thread(() =>
|
|||
|
{
|
|||
|
int handleBase = randSeed * handlesPerThread;
|
|||
|
while (Stopwatch.GetTimestamp() < finishedTime)
|
|||
|
{
|
|||
|
Random random = new Random(randSeed);
|
|||
|
RegionHandle handle = handles[handleBase + random.Next(handlesPerThread)];
|
|||
|
|
|||
|
if (handle.Dirty)
|
|||
|
{
|
|||
|
handle.Reprotect();
|
|||
|
Interlocked.Increment(ref dirtyFlagReprotects);
|
|||
|
}
|
|||
|
}
|
|||
|
}));
|
|||
|
}
|
|||
|
|
|||
|
// Write trigger threads
|
|||
|
int writeTriggers = 0;
|
|||
|
for (int i = 0; i < threadCount; i++)
|
|||
|
{
|
|||
|
int randSeed = i;
|
|||
|
testThreads.Add(new Thread(() =>
|
|||
|
{
|
|||
|
Random random = new Random(randSeed);
|
|||
|
ulong handleBase = (ulong)(randSeed * handlesPerThread * PageSize);
|
|||
|
while (Stopwatch.GetTimestamp() < finishedTime)
|
|||
|
{
|
|||
|
_tracking.VirtualMemoryEvent(handleBase + (ulong)random.Next(PageSize * handlesPerThread), PageSize / 2, true);
|
|||
|
Interlocked.Increment(ref writeTriggers);
|
|||
|
}
|
|||
|
}));
|
|||
|
}
|
|||
|
|
|||
|
// Handle create/delete threads
|
|||
|
int handleLifecycles = 0;
|
|||
|
for (int i = 0; i < threadCount; i++)
|
|||
|
{
|
|||
|
int randSeed = i;
|
|||
|
testThreads.Add(new Thread(() =>
|
|||
|
{
|
|||
|
int maxAddress = threadCount * handlesPerThread * PageSize;
|
|||
|
Random random = new Random(randSeed + 512);
|
|||
|
while (Stopwatch.GetTimestamp() < finishedTime)
|
|||
|
{
|
|||
|
RegionHandle handle = _tracking.BeginTracking((ulong)random.Next(maxAddress), (ulong)random.Next(65536));
|
|||
|
|
|||
|
handle.Dispose();
|
|||
|
|
|||
|
Interlocked.Increment(ref handleLifecycles);
|
|||
|
}
|
|||
|
}));
|
|||
|
}
|
|||
|
|
|||
|
finishedTime = Stopwatch.GetTimestamp() + Stopwatch.Frequency / 2; // Run for 500ms;
|
|||
|
|
|||
|
foreach (Thread thread in testThreads)
|
|||
|
{
|
|||
|
thread.Start();
|
|||
|
}
|
|||
|
|
|||
|
foreach (Thread thread in testThreads)
|
|||
|
{
|
|||
|
thread.Join();
|
|||
|
}
|
|||
|
|
|||
|
Assert.Greater(dirtyFlagReprotects, 10);
|
|||
|
Assert.Greater(writeTriggers, 10);
|
|||
|
Assert.Greater(handleLifecycles, 10);
|
|||
|
}
|
|||
|
|
|||
|
[Test]
|
|||
|
public void ReadActionThreadConsumption()
|
|||
|
{
|
|||
|
// Read actions should only be triggered once for each registration.
|
|||
|
// The implementation should use an interlocked exchange to make sure other threads can't get the action.
|
|||
|
|
|||
|
RegionHandle handle = _tracking.BeginTracking(0, PageSize);
|
|||
|
|
|||
|
int triggeredCount = 0;
|
|||
|
int registeredCount = 0;
|
|||
|
int signalThreadsDone = 0;
|
|||
|
bool isRegistered = false;
|
|||
|
|
|||
|
Action registerReadAction = () =>
|
|||
|
{
|
|||
|
registeredCount++;
|
|||
|
handle.RegisterAction((address, size) =>
|
|||
|
{
|
|||
|
isRegistered = false;
|
|||
|
Interlocked.Increment(ref triggeredCount);
|
|||
|
});
|
|||
|
};
|
|||
|
|
|||
|
const int threadCount = 16;
|
|||
|
const int iterationCount = 10000;
|
|||
|
Thread[] signalThreads = new Thread[threadCount];
|
|||
|
|
|||
|
for (int i = 0; i < threadCount; i++)
|
|||
|
{
|
|||
|
int randSeed = i;
|
|||
|
signalThreads[i] = new Thread(() =>
|
|||
|
{
|
|||
|
Random random = new Random(randSeed);
|
|||
|
for (int j = 0; j < iterationCount; j++)
|
|||
|
{
|
|||
|
_tracking.VirtualMemoryEvent((ulong)random.Next(PageSize), 4, false);
|
|||
|
}
|
|||
|
Interlocked.Increment(ref signalThreadsDone);
|
|||
|
});
|
|||
|
}
|
|||
|
|
|||
|
for (int i = 0; i < threadCount; i++)
|
|||
|
{
|
|||
|
signalThreads[i].Start();
|
|||
|
}
|
|||
|
|
|||
|
while (signalThreadsDone != -1)
|
|||
|
{
|
|||
|
if (signalThreadsDone == threadCount)
|
|||
|
{
|
|||
|
signalThreadsDone = -1;
|
|||
|
}
|
|||
|
|
|||
|
if (!isRegistered)
|
|||
|
{
|
|||
|
isRegistered = true;
|
|||
|
registerReadAction();
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
// The action should trigger exactly once for every registration,
|
|||
|
// then we register once after all the threads signalling it cease.
|
|||
|
Assert.AreEqual(registeredCount, triggeredCount + 1);
|
|||
|
}
|
|||
|
|
|||
|
[Test]
|
|||
|
public void PhysicalMemoryMapping()
|
|||
|
{
|
|||
|
// Tracking is done in the virtual space usually, but we also support tracking on physical regions.
|
|||
|
// The physical regions that make up a virtual region are determined when the region is created,
|
|||
|
// or when a mapping changes.
|
|||
|
|
|||
|
// These tests verify that the region cannot be signalled after unmapping, and can after remapping.
|
|||
|
|
|||
|
RegionHandle handle = _tracking.BeginTracking(PageSize, PageSize);
|
|||
|
|
|||
|
Assert.True(handle.Dirty);
|
|||
|
|
|||
|
bool trackedWriteTriggers = TestSingleWrite(handle, PageSize, 1, true);
|
|||
|
Assert.True(trackedWriteTriggers);
|
|||
|
|
|||
|
_memoryManager.NoMappings = true;
|
|||
|
_tracking.Unmap(PageSize, PageSize);
|
|||
|
bool unmappedWriteTriggers = TestSingleWrite(handle, PageSize, 1, true);
|
|||
|
Assert.False(unmappedWriteTriggers);
|
|||
|
|
|||
|
_memoryManager.NoMappings = false;
|
|||
|
_tracking.Map(PageSize, PageSize, PageSize);
|
|||
|
bool remappedWriteTriggers = TestSingleWrite(handle, PageSize, 1, true);
|
|||
|
Assert.True(remappedWriteTriggers);
|
|||
|
}
|
|||
|
|
|||
|
[Test]
|
|||
|
public void DisposeHandles()
|
|||
|
{
|
|||
|
// Ensure that disposed handles correctly remove their virtual and physical regions.
|
|||
|
|
|||
|
RegionHandle handle = _tracking.BeginTracking(0, PageSize);
|
|||
|
handle.Reprotect();
|
|||
|
|
|||
|
Assert.AreEqual((1, 1), _tracking.GetRegionCounts());
|
|||
|
|
|||
|
handle.Dispose();
|
|||
|
|
|||
|
Assert.AreEqual((0, 0), _tracking.GetRegionCounts());
|
|||
|
|
|||
|
// Two handles, small entirely contains big.
|
|||
|
// We expect there to be three regions after creating both, one for the small region and two covering the big one around it.
|
|||
|
// Regions are always split to avoid overlapping, which is why there are three instead of two.
|
|||
|
|
|||
|
RegionHandle handleSmall = _tracking.BeginTracking(PageSize, PageSize);
|
|||
|
RegionHandle handleBig = _tracking.BeginTracking(0, PageSize * 4);
|
|||
|
|
|||
|
Assert.AreEqual((3, 3), _tracking.GetRegionCounts());
|
|||
|
|
|||
|
// After disposing the big region, only the small one will remain.
|
|||
|
handleBig.Dispose();
|
|||
|
|
|||
|
Assert.AreEqual((1, 1), _tracking.GetRegionCounts());
|
|||
|
|
|||
|
handleSmall.Dispose();
|
|||
|
|
|||
|
Assert.AreEqual((0, 0), _tracking.GetRegionCounts());
|
|||
|
}
|
|||
|
}
|
|||
|
}
|