--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/memmodel/epoc/direct/mkernel.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,95 @@
+// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32\memmodel\epoc\direct\mkernel.cpp
+// 
+//
+
+#include <memmodel.h>
+
+EXPORT_C TInt Kern::FreeRamInBytes()
+	{
+	return MM::RamAllocator->Avail()<<MM::RamBlockShift;
+	}
+
+/********************************************
+ * Thread
+ ********************************************/
+
+TInt DThread::AllocateSupervisorStack()
+	{
+	__KTRACE_OPT(KTHREAD,Kern::Printf("DThread::AllocateSupervisorStack %O %x",this,iSupervisorStackSize));
+	iSupervisorStackSize=MM::RoundToBlockSize(iSupervisorStackSize);
+	if (iThreadType!=EThreadInitial)
+		{
+		TAny* p=Kern::Alloc(iSupervisorStackSize);	// just allocate on kernel heap
+		if (!p)
+			return KErrNoMemory;
+		iSupervisorStack=p;
+		iSupervisorStackAllocated = TRUE;
+		__KTRACE_OPT(KTHREAD,Kern::Printf("Supervisor stack at %x, size %x",iSupervisorStack,iSupervisorStackSize));
+		}
+	return KErrNone;
+	}
+
+void DThread::FreeSupervisorStack()
+	{
+	__KTRACE_OPT(KTHREAD,Kern::Printf("DThread::FreeSupervisorStack %O",this));
+	if (iSupervisorStackAllocated)
+		{
+		TAny* pStack = __e32_atomic_swp_ord_ptr(&iSupervisorStack, 0);
+		if (pStack && iThreadType!=EThreadInitial)
+			{
+			__KTRACE_OPT(KTHREAD,Kern::Printf("Freeing supervisor stack at %08x, size %x",pStack,iSupervisorStackSize));
+			Kern::Free(pStack);
+			}
+		}
+	iSupervisorStackAllocated = FALSE;
+	}
+
+TInt DThread::AllocateUserStack(TInt aSize, TBool /*aPaged*/)
+	{
+	__KTRACE_OPT(KTHREAD,Kern::Printf("DThread::AllocateUserStack %O %x",this,aSize));
+
+	aSize=MM::RoundToBlockSize(aSize);
+	if (aSize>PP::MaxUserThreadStack)
+		return KErrTooBig;
+	TInt r;
+	MM::WaitRamAlloc();
+	r=MM::AllocRegion(iUserStackRunAddress, aSize);
+	if (r==KErrNone)
+		iUserStackSize=aSize;
+	else
+		{
+		iUserStackSize=0;
+		MM::AllocFailed=ETrue;
+		}
+	MM::SignalRamAlloc();
+	__KTRACE_OPT(KTHREAD,Kern::Printf("User stack run address at %x",iUserStackRunAddress));
+	return r;
+	}
+
+void DThread::FreeUserStack()
+	{
+	__KTRACE_OPT(KTHREAD,Kern::Printf("DThread::FreeUserStack %O",this));
+	TLinAddr usr_stack_size = (TLinAddr)__e32_atomic_swp_ord32(&iUserStackSize, 0);
+	if (usr_stack_size)
+		{
+		__KTRACE_OPT(KTHREAD,Kern::Printf("Freeing user stack at %x+%x",iUserStackRunAddress,usr_stack_size));
+		MM::WaitRamAlloc();
+		MM::FreeRegion(iUserStackRunAddress, usr_stack_size);
+		iUserStackRunAddress=0;
+		MM::SignalRamAlloc();
+		}
+	}
+