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Implement a new physical memory manager and replace DeviceMemory (#856)

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* Implement a new physical memory manager and replace DeviceMemory

* Proper generic constraints

* Fix debug build

* Add memory tests

* New CPU memory manager and general code cleanup

* Remove host memory management from CPU project, use Ryujinx.Memory instead

* Fix tests

* Document exceptions on MemoryBlock

* Fix leak on unix memory allocation

* Proper disposal of some objects on tests

* Fix JitCache not being set as initialized

* GetRef without checks for 8-bits and 16-bits CAS

* Add MemoryBlock destructor

* Throw in separate method to improve codegen

* Address PR feedback

* QueryModified improvements

* Fix memory write tracking not marking all pages as modified in some cases

* Simplify MarkRegionAsModified

* Remove XML doc for ghost param

* Add back optimization to avoid useless buffer updates

* Add Ryujinx.Cpu project, move MemoryManager there and remove MemoryBlockWrapper

* Some nits

* Do not perform address translation when size is 0

* Address PR feedback and format NativeInterface class

* Remove ghost parameter description

* Update Ryujinx.Cpu to .NET Core 3.1

* Address PR feedback

* Fix build

* Return a well defined value for GetPhysicalAddress with invalid VA, and do not return unmapped ranges as modified

* Typo
This commit is contained in:
gdkchan 2020-05-03 19:54:50 -03:00 • committed by GitHub
parent 1758424208
commit f77694e4f7
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126 changed files with 2176 additions and 2092 deletions
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32
ARMeilleure/Instructions/InstEmitMemoryHelper.cs
View file

@ -1,6 +1,5 @@
using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Memory;
using ARMeilleure.Translation;
using System;
@ -11,6 +10,9 @@ namespace ARMeilleure.Instructions
{
static class InstEmitMemoryHelper
{
private const int PageBits = 12;
private const int PageMask = (1 << PageBits) - 1;
private enum Extension
{
Zx,
@ -318,28 +320,32 @@ namespace ARMeilleure.Instructions
private static Operand EmitAddressCheck(ArmEmitterContext context, Operand address, int size)
{
long addressCheckMask = ~(context.Memory.AddressSpaceSize - 1);
ulong addressCheckMask = ~((1UL << context.Memory.AddressSpaceBits) - 1);
addressCheckMask |= (1u << size) - 1;
return context.BitwiseAnd(address, Const(address.Type, addressCheckMask));
return context.BitwiseAnd(address, Const(address.Type, (long)addressCheckMask));
}
private static Operand EmitPtPointerLoad(ArmEmitterContext context, Operand address, Operand lblFallbackPath)
private static Operand EmitPtPointerLoad(ArmEmitterContext context, Operand address, Operand lblSlowPath)
{
Operand pte = Const(context.Memory.PageTable.ToInt64());
int ptLevelBits = context.Memory.AddressSpaceBits - 12; // 12 = Number of page bits.
int ptLevelSize = 1 << ptLevelBits;
int ptLevelMask = ptLevelSize - 1;
int bit = MemoryManager.PageBits;
Operand pte = Const(context.Memory.PageTablePointer.ToInt64());
int bit = PageBits;
do
{
Operand addrPart = context.ShiftRightUI(address, Const(bit));
bit += context.Memory.PtLevelBits;
bit += ptLevelBits;
if (bit < context.Memory.AddressSpaceBits)
{
addrPart = context.BitwiseAnd(addrPart, Const(addrPart.Type, context.Memory.PtLevelMask));
addrPart = context.BitwiseAnd(addrPart, Const(addrPart.Type, ptLevelMask));
}
Operand pteOffset = context.ShiftLeft(addrPart, Const(3));
@ -355,20 +361,16 @@ namespace ARMeilleure.Instructions
}
while (bit < context.Memory.AddressSpaceBits);
Operand hasFlagSet = context.BitwiseAnd(pte, Const((long)MemoryManager.PteFlagsMask));
context.BranchIfTrue(lblSlowPath, context.ICompareLess(pte, Const(0L)));
context.BranchIfTrue(lblFallbackPath, hasFlagSet);
Operand pageOffset = context.BitwiseAnd(address, Const(address.Type, MemoryManager.PageMask));
Operand pageOffset = context.BitwiseAnd(address, Const(address.Type, PageMask));
if (pageOffset.Type == OperandType.I32)
{
pageOffset = context.ZeroExtend32(OperandType.I64, pageOffset);
}
Operand physAddr = context.Add(pte, pageOffset);
return physAddr;
return context.Add(pte, pageOffset);
}
private static void EmitReadIntFallback(ArmEmitterContext context, Operand address, int rt, int size)