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authorgdkchan <gab.dark.100@gmail.com>2020-05-03 19:54:50 -0300
committerGitHub <noreply@github.com>2020-05-04 08:54:50 +1000
commitf77694e4f774c9391aad5344e70a7c8721cfedc6 (patch)
tree36bccaeb153bd5d921c751966b8a734a7b4b6ae1 /ARMeilleure/Memory/MemoryManagementWindows.cs
parent1758424208335d1f4ff7c27c554e517c81bf72f6 (diff)
Implement a new physical memory manager and replace DeviceMemory (#856)
* 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
Diffstat (limited to 'ARMeilleure/Memory/MemoryManagementWindows.cs')
-rw-r--r--ARMeilleure/Memory/MemoryManagementWindows.cs142
1 files changed, 0 insertions, 142 deletions
diff --git a/ARMeilleure/Memory/MemoryManagementWindows.cs b/ARMeilleure/Memory/MemoryManagementWindows.cs
deleted file mode 100644
index a9455063..00000000
--- a/ARMeilleure/Memory/MemoryManagementWindows.cs
+++ /dev/null
@@ -1,142 +0,0 @@
-using System;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-namespace ARMeilleure.Memory
-{
- static class MemoryManagementWindows
- {
- [Flags]
- private enum AllocationType : uint
- {
- Commit = 0x1000,
- Reserve = 0x2000,
- Decommit = 0x4000,
- Release = 0x8000,
- Reset = 0x80000,
- Physical = 0x400000,
- TopDown = 0x100000,
- WriteWatch = 0x200000,
- LargePages = 0x20000000
- }
-
- [Flags]
- private enum MemoryProtection : uint
- {
- NoAccess = 0x01,
- ReadOnly = 0x02,
- ReadWrite = 0x04,
- WriteCopy = 0x08,
- Execute = 0x10,
- ExecuteRead = 0x20,
- ExecuteReadWrite = 0x40,
- ExecuteWriteCopy = 0x80,
- GuardModifierflag = 0x100,
- NoCacheModifierflag = 0x200,
- WriteCombineModifierflag = 0x400
- }
-
- [DllImport("kernel32.dll")]
- private static extern IntPtr VirtualAlloc(
- IntPtr lpAddress,
- IntPtr dwSize,
- AllocationType flAllocationType,
- MemoryProtection flProtect);
-
- [DllImport("kernel32.dll")]
- private static extern bool VirtualProtect(
- IntPtr lpAddress,
- IntPtr dwSize,
- MemoryProtection flNewProtect,
- out MemoryProtection lpflOldProtect);
-
- [DllImport("kernel32.dll")]
- private static extern bool VirtualFree(
- IntPtr lpAddress,
- IntPtr dwSize,
- AllocationType dwFreeType);
-
- public static IntPtr Allocate(IntPtr size)
- {
- const AllocationType flags =
- AllocationType.Reserve |
- AllocationType.Commit;
-
- IntPtr ptr = VirtualAlloc(IntPtr.Zero, size, flags, MemoryProtection.ReadWrite);
-
- if (ptr == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- return ptr;
- }
-
- public static IntPtr AllocateWriteTracked(IntPtr size)
- {
- const AllocationType flags =
- AllocationType.Reserve |
- AllocationType.Commit |
- AllocationType.WriteWatch;
-
- IntPtr ptr = VirtualAlloc(IntPtr.Zero, size, flags, MemoryProtection.ReadWrite);
-
- if (ptr == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- return ptr;
- }
-
- public static bool Commit(IntPtr location, IntPtr size)
- {
- const AllocationType flags = AllocationType.Commit;
-
- IntPtr ptr = VirtualAlloc(location, size, flags, MemoryProtection.ReadWrite);
-
- return ptr != IntPtr.Zero;
- }
-
- public static bool Reprotect(IntPtr address, IntPtr size, Memory.MemoryProtection protection)
- {
- MemoryProtection prot = GetProtection(protection);
-
- return VirtualProtect(address, size, prot, out _);
- }
-
- public static IntPtr Reserve(IntPtr size)
- {
- const AllocationType flags = AllocationType.Reserve;
-
- IntPtr ptr = VirtualAlloc(IntPtr.Zero, size, flags, MemoryProtection.ReadWrite);
-
- if (ptr == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- return ptr;
- }
-
- private static MemoryProtection GetProtection(Memory.MemoryProtection protection)
- {
- switch (protection)
- {
- case Memory.MemoryProtection.None: return MemoryProtection.NoAccess;
- case Memory.MemoryProtection.Read: return MemoryProtection.ReadOnly;
- case Memory.MemoryProtection.ReadAndWrite: return MemoryProtection.ReadWrite;
- case Memory.MemoryProtection.ReadAndExecute: return MemoryProtection.ExecuteRead;
- case Memory.MemoryProtection.ReadWriteExecute: return MemoryProtection.ExecuteReadWrite;
- case Memory.MemoryProtection.Execute: return MemoryProtection.Execute;
-
- default: throw new ArgumentException($"Invalid permission \"{protection}\".");
- }
- }
-
- public static bool Free(IntPtr address)
- {
- return VirtualFree(address, IntPtr.Zero, AllocationType.Release);
- }
- }
-} \ No newline at end of file