drashna/ryujinx
1
0
Fork 0
Code Activity Actions

Fixes to memory management

Browse source
This commit is contained in:
gdkchan 2018-02-09 21:13:18 -03:00
parent ccc9ce1908
commit 7f4a190665
6 changed files with 51 additions and 72 deletions
Download patch file Download diff file Expand all files Collapse all files

89
Ryujinx/Cpu/Memory/AMemoryMgr.cs
View file

@ -1,5 +1,3 @@
using System.Runtime.CompilerServices;
namespace ChocolArm64.Memory
{
public class AMemoryMgr
@ -27,24 +25,23 @@ namespace ChocolArm64.Memory
private enum PTMap
{
Unmapped,
Physical,
Mirror
Mapped
}
private struct PTEntry
{
public long Position;
public int Type;
public PTMap Map;
public AMemoryPerm Perm;
public PTEntry(long Position, int Type, PTMap Map, AMemoryPerm Perm)
public int Type;
public int Attr;
public PTEntry(PTMap Map, AMemoryPerm Perm, int Type, int Attr)
{
this.Position = Position;
this.Type = Type;
this.Map = Map;
this.Perm = Perm;
this.Map = Map;
this.Perm = Perm;
this.Type = Type;
this.Attr = Attr;
}
}
@ -53,7 +50,7 @@ namespace ChocolArm64.Memory
private bool IsHeapInitialized;
public long HeapAddr { get; private set; }
public int HeapSize { get; private set; }
public long HeapSize { get; private set; }
public AMemoryMgr(AMemoryAlloc Allocator)
{
@ -101,10 +98,10 @@ namespace ChocolArm64.Memory
return false;
}
public void SetHeapSize(int Size, int Type)
public void SetHeapSize(long Size, int Type)
{
//TODO: Return error when theres no enough space to allocate heap.
Size = (int)AMemoryHelper.PageRoundUp(Size);
Size = AMemoryHelper.PageRoundUp(Size);
long Position = HeapAddr;
@ -132,40 +129,13 @@ namespace ChocolArm64.Memory
HeapSize = Size;
}
public bool MapPhys(long Src, long Dst, long Size, int Type, AMemoryPerm Perm)
{
Src = AMemoryHelper.PageRoundDown(Src);
Dst = AMemoryHelper.PageRoundDown(Dst);
Size = AMemoryHelper.PageRoundUp(Size);
if (Dst < 0 || Dst + Size >= RamSize)
{
return false;
}
long PagesCount = Size / PageSize;
while (PagesCount-- > 0)
{
SetPTEntry(Src, new PTEntry(Dst, Type, PTMap.Physical, Perm));
Src += PageSize;
Dst += PageSize;
}
return true;
}
public void MapPhys(long Position, long Size, int Type, AMemoryPerm Perm)
{
while (Size > 0)
{
if (!IsMapped(Position))
{
long PhysPos = Allocator.Alloc(PageSize);
SetPTEntry(Position, new PTEntry(PhysPos, Type, PTMap.Physical, Perm));
SetPTEntry(Position, new PTEntry(PTMap.Mapped, Perm, Type, 0));
}
long CPgSize = PageSize - (Position & PageMask);
@ -186,13 +156,19 @@ namespace ChocolArm64.Memory
while (PagesCount-- > 0)
{
PTEntry Entry = GetPTEntry(Src);
PTEntry SrcEntry = GetPTEntry(Src);
PTEntry DstEntry = GetPTEntry(Dst);
Entry.Type = Type;
Entry.Map = PTMap.Mirror;
Entry.Position = Dst;
DstEntry.Map = PTMap.Mapped;
DstEntry.Type = Type;
DstEntry.Perm = SrcEntry.Perm;
SetPTEntry(Src, Entry);
SrcEntry.Perm = AMemoryPerm.None;
SrcEntry.Attr |= 1;
SetPTEntry(Src, SrcEntry);
SetPTEntry(Dst, DstEntry);
Src += PageSize;
Dst += PageSize;
@ -229,9 +205,10 @@ namespace ChocolArm64.Memory
{
PTEntry Entry = GetPTEntry(Pos);
return Entry.Type == BaseEntry.Type &&
Entry.Map == BaseEntry.Map &&
Entry.Perm == BaseEntry.Perm;
return Entry.Map == BaseEntry.Map &&
Entry.Perm == BaseEntry.Perm &&
Entry.Type == BaseEntry.Type &&
Entry.Attr == BaseEntry.Attr;
}
long Start = Position;
@ -249,7 +226,12 @@ namespace ChocolArm64.Memory
long Size = End - Start;
return new AMemoryMapInfo(Start, Size, BaseEntry.Type, BaseEntry.Perm);
return new AMemoryMapInfo(
Start,
Size,
BaseEntry.Type,
BaseEntry.Attr,
BaseEntry.Perm);
}
public bool HasPermission(long Position, AMemoryPerm Perm)
@ -257,7 +239,6 @@ namespace ChocolArm64.Memory
return GetPTEntry(Position).Perm.HasFlag(Perm);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool IsMapped(long Position)
{
if (Position >> PTLvl0Bits + PTLvl1Bits + PTPageBits != 0)
@ -276,7 +257,6 @@ namespace ChocolArm64.Memory
return PageTable[L0][L1].Map != PTMap.Unmapped;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private PTEntry GetPTEntry(long Position)
{
long L0 = (Position >> PTLvl0Bit) & PTLvl0Mask;
@ -290,7 +270,6 @@ namespace ChocolArm64.Memory
return PageTable[L0][L1];
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void SetPTEntry(long Position, PTEntry Entry)
{
long L0 = (Position >> PTLvl0Bit) & PTLvl0Mask;