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Implement support for page sizes > 4KB (#4252)

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* Implement support for page sizes > 4KB

* Check and work around more alignment issues

* Was not meant to change this

* Use MemoryBlock.GetPageSize() value for signal handler code

* Do not take the path for private allocations if host supports 4KB pages

* Add Flags attribute on MemoryMapFlags

* Fix dirty region size with 16kb pages

Would accidentally report a size that was too high (generally 16k instead of 4k, uploading 4x as much data)

Co-authored-by: riperiperi <rhy3756547@hotmail.com>
This commit is contained in:
gdkchan 2023-01-17 01:13:24 -03:00 • committed by GitHub
parent 43a83a401e
commit 86fd0643c2
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GPG key ID: 4AEE18F83AFDEB23
29 changed files with 1294 additions and 146 deletions
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10
Ryujinx.Memory/Tracking/MemoryTracking.cs
View file

@ -139,8 +139,6 @@ namespace Ryujinx.Memory.Tracking
/// <returns>The memory tracking handle</returns>
public MultiRegionHandle BeginGranularTracking(ulong address, ulong size, IEnumerable<IRegionHandle> handles, ulong granularity)
{
(address, size) = PageAlign(address, size);
return new MultiRegionHandle(this, address, size, handles, granularity);
}
@ -166,11 +164,11 @@ namespace Ryujinx.Memory.Tracking
/// <returns>The memory tracking handle</returns>
public RegionHandle BeginTracking(ulong address, ulong size)
{
(address, size) = PageAlign(address, size);
var (paAddress, paSize) = PageAlign(address, size);
lock (TrackingLock)
{
RegionHandle handle = new RegionHandle(this, address, size, _memoryManager.IsRangeMapped(address, size));
RegionHandle handle = new RegionHandle(this, paAddress, paSize, address, size, _memoryManager.IsRangeMapped(address, size));
return handle;
}
@ -186,11 +184,11 @@ namespace Ryujinx.Memory.Tracking
/// <returns>The memory tracking handle</returns>
internal RegionHandle BeginTrackingBitmap(ulong address, ulong size, ConcurrentBitmap bitmap, int bit)
{
(address, size) = PageAlign(address, size);
var (paAddress, paSize) = PageAlign(address, size);
lock (TrackingLock)
{
RegionHandle handle = new RegionHandle(this, address, size, bitmap, bit, _memoryManager.IsRangeMapped(address, size));
RegionHandle handle = new RegionHandle(this, paAddress, paSize, address, size, bitmap, bit, _memoryManager.IsRangeMapped(address, size));
return handle;
}

21
Ryujinx.Memory/Tracking/MultiRegionHandle.cs
View file

@ -32,7 +32,7 @@ namespace Ryujinx.Memory.Tracking
internal MultiRegionHandle(MemoryTracking tracking, ulong address, ulong size, IEnumerable<IRegionHandle> handles, ulong granularity)
{
_handles = new RegionHandle[size / granularity];
_handles = new RegionHandle[(size + granularity - 1) / granularity];
Granularity = granularity;
_dirtyBitmap = new ConcurrentBitmap(_handles.Length, true);
@ -50,7 +50,7 @@ namespace Ryujinx.Memory.Tracking
foreach (RegionHandle handle in handles)
{
int startIndex = (int)((handle.Address - address) / granularity);
int startIndex = (int)((handle.RealAddress - address) / granularity);
// Fill any gap left before this handle.
while (i < startIndex)
@ -72,7 +72,7 @@ namespace Ryujinx.Memory.Tracking
}
else
{
int endIndex = (int)((handle.EndAddress - address) / granularity);
int endIndex = (int)((handle.RealEndAddress - address) / granularity);
while (i < endIndex)
{
@ -171,12 +171,13 @@ namespace Ryujinx.Memory.Tracking
modifiedAction(rgStart, rgSize);
rgSize = 0;
}
rgStart = handle.Address;
rgStart = handle.RealAddress;
}
if (handle.Dirty)
{
rgSize += handle.Size;
rgSize += handle.RealSize;
handle.Reprotect();
}
@ -191,7 +192,7 @@ namespace Ryujinx.Memory.Tracking
int startHandle = (int)((address - Address) / Granularity);
int lastHandle = (int)((address + (size - 1) - Address) / Granularity);
ulong rgStart = _handles[startHandle].Address;
ulong rgStart = Address + (ulong)startHandle * Granularity;
if (startHandle == lastHandle)
{
@ -200,7 +201,7 @@ namespace Ryujinx.Memory.Tracking
if (handle.Dirty)
{
handle.Reprotect();
modifiedAction(rgStart, handle.Size);
modifiedAction(rgStart, handle.RealSize);
}
return;
@ -273,10 +274,10 @@ namespace Ryujinx.Memory.Tracking
modifiedAction(rgStart, rgSize);
rgSize = 0;
}
rgStart = handle.Address;
rgStart = handle.RealAddress;
}
rgSize += handle.Size;
rgSize += handle.RealSize;
handle.Reprotect(false, (checkMasks[index] & bitValue) == 0);
checkMasks[index] &= ~bitValue;
@ -320,7 +321,7 @@ namespace Ryujinx.Memory.Tracking
{
handle.Reprotect();
modifiedAction(rgStart, handle.Size);
modifiedAction(rgStart, handle.RealSize);
}
}

27
Ryujinx.Memory/Tracking/RegionHandle.cs
View file

@ -42,6 +42,10 @@ namespace Ryujinx.Memory.Tracking
public ulong Size { get; }
public ulong EndAddress { get; }
public ulong RealAddress { get; }
public ulong RealSize { get; }
public ulong RealEndAddress { get; }
internal IMultiRegionHandle Parent { get; set; }
private event Action _onDirty;
@ -89,10 +93,12 @@ namespace Ryujinx.Memory.Tracking
/// <param name="tracking">Tracking object for the target memory block</param>
/// <param name="address">Virtual address of the region to track</param>
/// <param name="size">Size of the region to track</param>
/// <param name="realAddress">The real, unaligned address of the handle</param>
/// <param name="realSize">The real, unaligned size of the handle</param>
/// <param name="bitmap">The bitmap the dirty flag for this handle is stored in</param>
/// <param name="bit">The bit index representing the dirty flag for this handle</param>
/// <param name="mapped">True if the region handle starts mapped</param>
internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, ConcurrentBitmap bitmap, int bit, bool mapped = true)
internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, ulong realAddress, ulong realSize, ConcurrentBitmap bitmap, int bit, bool mapped = true)
{
Bitmap = bitmap;
DirtyBit = bit;
@ -104,6 +110,10 @@ namespace Ryujinx.Memory.Tracking
Size = size;
EndAddress = address + size;
RealAddress = realAddress;
RealSize = realSize;
RealEndAddress = realAddress + realSize;
_tracking = tracking;
_regions = tracking.GetVirtualRegionsForHandle(address, size);
foreach (var region in _regions)
@ -119,16 +129,23 @@ namespace Ryujinx.Memory.Tracking
/// <param name="tracking">Tracking object for the target memory block</param>
/// <param name="address">Virtual address of the region to track</param>
/// <param name="size">Size of the region to track</param>
/// <param name="realAddress">The real, unaligned address of the handle</param>
/// <param name="realSize">The real, unaligned size of the handle</param>
/// <param name="mapped">True if the region handle starts mapped</param>
internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, bool mapped = true)
internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, ulong realAddress, ulong realSize, bool mapped = true)
{
Bitmap = new ConcurrentBitmap(1, mapped);
Unmapped = !mapped;
Address = address;
Size = size;
EndAddress = address + size;
RealAddress = realAddress;
RealSize = realSize;
RealEndAddress = realAddress + realSize;
_tracking = tracking;
_regions = tracking.GetVirtualRegionsForHandle(address, size);
foreach (var region in _regions)
@ -199,6 +216,10 @@ namespace Ryujinx.Memory.Tracking
if (_preAction != null)
{
// Limit the range to within this handle.
ulong maxAddress = Math.Max(address, RealAddress);
ulong minEndAddress = Math.Min(address + size, RealAddress + RealSize);
// Copy the handles list in case it changes when we're out of the lock.
if (handleIterable is List<RegionHandle>)
{
@ -212,7 +233,7 @@ namespace Ryujinx.Memory.Tracking
{
lock (_preActionLock)
{
_preAction?.Invoke(address, size);
_preAction?.Invoke(maxAddress, minEndAddress - maxAddress);
// The action is removed after it returns, to ensure that the null check above succeeds when
// it's still in progress rather than continuing and possibly missing a required data flush.