diff -r ef2a444a7410 -r b3a1d9898418 kernel/eka/memmodel/epoc/flexible/mmu/mm.h
--- a/kernel/eka/memmodel/epoc/flexible/mmu/mm.h	Mon May 03 13:47:38 2010 +0300
+++ b/kernel/eka/memmodel/epoc/flexible/mmu/mm.h	Fri May 14 17:13:29 2010 +0300
@@ -28,6 +28,7 @@
 class DMemoryObject;
 class DMemoryMapping;
 class DMemModelThread;
+class DMemModelProcess;
 class DPhysicalPinMapping;
 
 /**
@@ -160,7 +161,7 @@
 	/**
 	Memory object contents are to be demand paged. 
 	*/
-	EMemoryCreateDemandPaged			= 1<<31
+	EMemoryCreateDemandPaged			= 1U<<31
 	};
 
 
@@ -311,7 +312,7 @@
 	specified address.
 	@internalTechnology
 	*/
-	EMappingCreateFixedVirtual	= 1<<31
+	EMappingCreateFixedVirtual	= 1U<<31
 	};
 
 
@@ -883,6 +884,26 @@
 	Find and open the mapping that maps a virtual address in the address space of the specified
 	process.
 
+	The caller must close the mapping when it has finished using it.
+
+	@param aProcess The process whose address space is to be searched.
+	@param aAddr The virtual address for which the mapping is to be found.
+	@param aSize The size, in bytes, of the region at aAddr.
+	@param aOffsetInMapping A reference which is set to the offset, in bytes, into the
+							mapping of the start address.
+	@param aInstanceCount	The instance count of the found mapping.
+
+	@return The mapping, or NULL if no mapping was found.
+
+	@pre Calling thread must be in a critical section.
+	*/
+	static DMemoryMapping* FindMappingInProcess(DMemModelProcess* aProcess, TLinAddr aAddr, TUint aSize, 
+												TUint& aOffsetInMapping, TUint& aInstanceCount);
+
+	/**
+	Find and open the mapping that maps a virtual address in the address space of the specified
+	process.
+
 	The caller must close the mapping when it has finished using it.  The caller must ensure that
 	the process can't be destroyed while calling this method.
 
@@ -1047,6 +1068,18 @@
 	static TInt VirtualAlloc(TInt aOsAsid, TLinAddr& aLinAddr, TUint aSize, TBool aDemandPaged);
 	static void VirtualFree(TInt aOsAsid, TLinAddr aLinAddr, TUint aSize);
 
+#ifdef _DEBUG
+	/**
+	Force a region of paged memory to be paged out.
+
+	If the memory is not paged this call has no effect.
+
+	@return KErrNone, or KErrBadDescriptor if a single mapping containing the region could not be
+	        found.
+	*/
+	static TInt FlushRegion(DMemModelProcess*, TLinAddr aStartAddress, TUint aSize);
+#endif
+
 	/**
 	Enumeration of panic values for category "MemModel".
 	*/