Bix/Ryujinx
Bix/Ryujinx
1
1
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Use sparse memory when memory isn't software.

Browse source
This commit is contained in:
riperiperi 2024-06-24 20:37:58 +01:00
parent 86f7b09b64
commit aa3b1e8996
4 changed files with 8 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

15
src/Ryujinx.Cpu/AddressTable.cs
View file

@ -1,3 +1,4 @@
using ARMeilleure.Memory;
using Ryujinx.Common;
using Ryujinx.Common.Logging;
using Ryujinx.Cpu.Signal;
@ -17,12 +18,6 @@ namespace ARMeilleure.Common
/// <typeparam name="TEntry">Type of the value</typeparam>
public unsafe class AddressTable<TEntry> : IAddressTable<TEntry> where TEntry : unmanaged
{
/// <summary>
/// If true, the sparse 2-level table should be used to improve performance.
/// If false, the platform doesn't properly support it, or will be negatively impacted.
/// </summary>
public static bool UseSparseTable => true;
private readonly struct AddressTablePage
{
public readonly bool IsSparse;
@ -177,13 +172,15 @@ namespace ARMeilleure.Common
/// <summary>
/// Create an <see cref="AddressTable{TEntry}"/> instance for an ARM function table.
/// Selects the best table structure for A32/A64, taking into account whether sparse mapping is supported.
/// Selects the best table structure for A32/A64, taking into account the selected memory manager type.
/// </summary>
/// <param name="for64Bits">True if the guest is A64, false otherwise</param>
/// <param name="type">Memory manager type</param>
/// <returns>An <see cref="AddressTable{TEntry}"/> for ARM function lookup</returns>
public static AddressTable<TEntry> CreateForArm(bool for64Bits)
public static AddressTable<TEntry> CreateForArm(bool for64Bits, MemoryManagerType type)
{
bool sparse = UseSparseTable;
// Assume software memory means that we don't want to use any signal handlers.
bool sparse = type != MemoryManagerType.SoftwareMmu && type != MemoryManagerType.SoftwarePageTable;
return new AddressTable<TEntry>(AddressTablePresets.GetArmPreset(for64Bits, sparse), sparse);
}