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// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\nkernsmp\x86\ncutils.cpp
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//
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//
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#include <x86.h>
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extern "C" {
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extern SVariantInterfaceBlock* VIB;
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}
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//#define __DBG_MON_FAULT__
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//#define __RAM_LOADED_CODE__
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//#define __EARLY_DEBUG__
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void InitFpu();
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TUint32 NKern::IdleGenerationCount()
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{
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return TheScheduler.iIdleGenerationCount;
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}
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void NKern::Idle()
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{
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TScheduler& s = TheScheduler;
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TSubScheduler& ss = SubScheduler(); // OK since idle thread is locked to CPU
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TUint32 m = ss.iCpuMask;
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s.iIdleSpinLock.LockIrq(); // don't allow any more idle DFCs for now
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TUint32 orig_cpus_not_idle = __e32_atomic_and_ord32(&s.iCpusNotIdle, ~m);
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if (orig_cpus_not_idle == m)
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{
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// all CPUs idle
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if (!s.iIdleDfcs.IsEmpty())
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{
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__e32_atomic_ior_ord32(&s.iCpusNotIdle, m); // we aren't idle after all
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s.iIdleGeneration ^= 1;
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++s.iIdleGenerationCount;
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s.iIdleSpillCpu = (TUint8)ss.iCpuNum;
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ss.iDfcs.MoveFrom(&s.iIdleDfcs);
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ss.iDfcPendingFlag = 1;
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s.iIdleSpinLock.UnlockIrq();
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NKern::Lock();
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NKern::Unlock(); // process idle DFCs here
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return;
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}
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}
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s.iIdleSpinLock.UnlockOnly(); // leave interrupts disabled
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NKIdle(0);
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}
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TUint32 ContextId()
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{
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switch(NKern::CurrentContext())
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{
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case NKern::EThread:
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return (TUint32)NKern::CurrentThread();
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case NKern::EIDFC:
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return 3;
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case NKern::EInterrupt:
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return 2;
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default:
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return 0;
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}
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}
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EXPORT_C TBool BTrace::Out(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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TUint32 pc = (&a0)[-1]; // return address on X86
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__ACQUIRE_BTRACE_LOCK();
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TBool r = traceData.iHandler(a0,0,0,a1,a2,a3,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutX(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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__ACQUIRE_BTRACE_LOCK();
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TBool r = traceData.iHandler(a0,0,context,a1,a2,a3,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutN(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 pc = (&a0)[-1]; // return address on X86
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TBool r;
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__ACQUIRE_BTRACE_LOCK();
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if (!aDataSize)
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r = traceData.iHandler(a0,0,0,a1,a2,0,0,pc);
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else if (aDataSize<=4)
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r = traceData.iHandler(a0,0,0,a1,a2,*(TUint32*)aData,0,pc);
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else
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r = traceData.iHandler(a0,0,0,a1,a2,(TUint32)aData,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutNX(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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TBool r;
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__ACQUIRE_BTRACE_LOCK();
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if(!aDataSize)
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r = traceData.iHandler(a0,0,context,a1,a2,0,0,pc);
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else if(aDataSize<=4)
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r = traceData.iHandler(a0,0,context,a1,a2,*(TUint32*)aData,0,pc);
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else
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r = traceData.iHandler(a0,0,context,a1,a2,(TUint32)aData,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutBig(TUint32 a0, TUint32 a1, const TAny* aData, TInt aDataSize)
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{
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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TBool r = DoOutBig(a0,a1,aData,aDataSize,context,pc);
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return r;
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}
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EXPORT_C TBool BTrace::OutFiltered(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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TUint32 pc = (&a0)[-1]; // return address on X86
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__ACQUIRE_BTRACE_LOCK();
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TBool r = traceData.iHandler(a0,0,0,a1,a2,a3,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutFilteredX(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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__ACQUIRE_BTRACE_LOCK();
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TBool r = traceData.iHandler(a0,0,context,a1,a2,a3,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutFilteredN(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 pc = (&a0)[-1]; // return address on X86
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TBool r;
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__ACQUIRE_BTRACE_LOCK();
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if(!aDataSize)
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r = traceData.iHandler(a0,0,0,a1,a2,0,0,pc);
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else if(aDataSize<=4)
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r = traceData.iHandler(a0,0,0,a1,a2,*(TUint32*)aData,0,pc);
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else
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r = traceData.iHandler(a0,0,0,a1,a2,(TUint32)aData,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutFilteredNX(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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TBool r;
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__ACQUIRE_BTRACE_LOCK();
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if(!aDataSize)
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r = traceData.iHandler(a0,0,context,a1,a2,0,0,pc);
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else if(aDataSize<=4)
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r = traceData.iHandler(a0,0,context,a1,a2,*(TUint32*)aData,0,pc);
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else
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r = traceData.iHandler(a0,0,context,a1,a2,(TUint32)aData,0,pc);
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__RELEASE_BTRACE_LOCK();
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return r;
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}
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EXPORT_C TBool BTrace::OutFilteredBig(TUint32 a0, TUint32 a1, const TAny* aData, TInt aDataSize)
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{
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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TBool r = DoOutBig(a0,a1,aData,aDataSize,context,pc);
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return r;
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}
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EXPORT_C TBool BTrace::OutFilteredPcFormatBig(TUint32 aHeader, TUint32 aModuleUid, TUint32 aPc, TUint16 aFormatId, const TAny* aData, TInt aDataSize)
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{
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return EFalse; //kernel side not implemented yet
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|
sl@0
|
274 |
}
|
|
sl@0
|
275 |
|
|
sl@0
|
276 |
TInt BTraceDefaultControl(BTrace::TControl /*aFunction*/, TAny* /*aArg1*/, TAny* /*aArg2*/)
|
|
sl@0
|
277 |
{
|
|
sl@0
|
278 |
return KErrNotSupported;
|
|
sl@0
|
279 |
}
|
|
sl@0
|
280 |
|
|
sl@0
|
281 |
|
|
sl@0
|
282 |
EXPORT_C void BTrace::SetHandlers(BTrace::THandler aNewHandler, BTrace::TControlFunction aNewControl, BTrace::THandler& aOldHandler, BTrace::TControlFunction& aOldControl)
|
|
sl@0
|
283 |
{
|
|
sl@0
|
284 |
BTrace::TControlFunction nc = aNewControl ? aNewControl : &BTraceDefaultControl;
|
|
sl@0
|
285 |
__ACQUIRE_BTRACE_LOCK();
|
|
sl@0
|
286 |
BTrace::THandler oldh = (BTrace::THandler)__e32_atomic_swp_ord_ptr(&BTraceData.iHandler, aNewHandler);
|
|
sl@0
|
287 |
BTrace::TControlFunction oldc = (BTrace::TControlFunction)__e32_atomic_swp_ord_ptr(&BTraceData.iControl, nc);
|
|
sl@0
|
288 |
__RELEASE_BTRACE_LOCK();
|
|
sl@0
|
289 |
aOldHandler = oldh;
|
|
sl@0
|
290 |
aOldControl = oldc;
|
|
sl@0
|
291 |
}
|
|
sl@0
|
292 |
|
|
sl@0
|
293 |
|
|
sl@0
|
294 |
EXPORT_C TInt BTrace::SetFilter(TUint aCategory, TInt aValue)
|
|
sl@0
|
295 |
{
|
|
sl@0
|
296 |
if(!IsSupported(aCategory))
|
|
sl@0
|
297 |
return KErrNotSupported;
|
|
sl@0
|
298 |
TUint8* filter = BTraceData.iFilter+aCategory;
|
|
sl@0
|
299 |
TUint oldValue = *filter;
|
|
sl@0
|
300 |
if(TUint(aValue)<=1u)
|
|
sl@0
|
301 |
{
|
|
sl@0
|
302 |
oldValue = __e32_atomic_swp_ord8(filter, (TUint8)aValue);
|
|
sl@0
|
303 |
BTraceContext4(BTrace::EMetaTrace, BTrace::EMetaTraceFilterChange, (TUint8)aCategory | (aValue<<8));
|
|
sl@0
|
304 |
}
|
|
sl@0
|
305 |
return oldValue;
|
|
sl@0
|
306 |
}
|
|
sl@0
|
307 |
|
|
sl@0
|
308 |
EXPORT_C SCpuIdleHandler* NKern::CpuIdleHandler()
|
|
sl@0
|
309 |
{
|
|
sl@0
|
310 |
return &::CpuIdleHandler;
|
|
sl@0
|
311 |
}
|
|
sl@0
|
312 |
|
|
sl@0
|
313 |
|
|
sl@0
|
314 |
void NKern::Init0(TAny* a)
|
|
sl@0
|
315 |
{
|
|
sl@0
|
316 |
__KTRACE_OPT(KBOOT,DEBUGPRINT("VIB=%08x", a));
|
|
sl@0
|
317 |
VIB = (SVariantInterfaceBlock*)a;
|
|
sl@0
|
318 |
__NK_ASSERT_ALWAYS(VIB && VIB->iVer==0 && VIB->iSize==sizeof(SVariantInterfaceBlock));
|
|
sl@0
|
319 |
__KTRACE_OPT(KBOOT,DEBUGPRINT("iVer=%d iSize=%d", VIB->iVer, VIB->iSize));
|
|
sl@0
|
320 |
__KTRACE_OPT(KBOOT,DEBUGPRINT("iMaxCpuClock=%08x %08x", I64HIGH(VIB->iMaxCpuClock), I64LOW(VIB->iMaxCpuClock)));
|
|
sl@0
|
321 |
__KTRACE_OPT(KBOOT,DEBUGPRINT("iTimestampFreq=%u", VIB->iTimestampFreq));
|
|
sl@0
|
322 |
__KTRACE_OPT(KBOOT,DEBUGPRINT("iMaxTimerClock=%u", VIB->iMaxTimerClock));
|
|
sl@0
|
323 |
TInt i;
|
|
sl@0
|
324 |
for (i=0; i<KMaxCpus; ++i)
|
|
sl@0
|
325 |
{
|
|
sl@0
|
326 |
TSubScheduler& ss = TheSubSchedulers[i];
|
|
sl@0
|
327 |
ss.i_TimerMultF = (TAny*)KMaxTUint32;
|
|
sl@0
|
328 |
ss.i_TimerMultI = (TAny*)0x01000000u;
|
|
sl@0
|
329 |
ss.i_CpuMult = (TAny*)KMaxTUint32;
|
|
sl@0
|
330 |
VIB->iTimerMult[i] = (volatile STimerMult*)&ss.i_TimerMultF;
|
|
sl@0
|
331 |
VIB->iCpuMult[i] = (volatile TUint32*)&ss.i_CpuMult;
|
|
sl@0
|
332 |
}
|
|
sl@0
|
333 |
TheScheduler.i_TimerMax = (TAny*)(VIB->iMaxTimerClock / 128);
|
|
sl@0
|
334 |
InitFpu();
|
|
sl@0
|
335 |
InterruptInit0();
|
|
sl@0
|
336 |
}
|
|
sl@0
|
337 |
|
|
sl@0
|
338 |
EXPORT_C TUint32 NKern::CpuTimeMeasFreq()
|
|
sl@0
|
339 |
{
|
|
sl@0
|
340 |
return NKern::TimestampFrequency();
|
|
sl@0
|
341 |
}
|
|
sl@0
|
342 |
|
|
sl@0
|
343 |
|
|
sl@0
|
344 |
/** Converts a time interval in microseconds to thread timeslice ticks
|
|
sl@0
|
345 |
|
|
sl@0
|
346 |
@param aMicroseconds time interval in microseconds.
|
|
sl@0
|
347 |
@return Number of thread timeslice ticks. Non-integral results are rounded up.
|
|
sl@0
|
348 |
|
|
sl@0
|
349 |
@pre aMicroseconds should be nonnegative
|
|
sl@0
|
350 |
@pre any context
|
|
sl@0
|
351 |
*/
|
|
sl@0
|
352 |
EXPORT_C TInt NKern::TimesliceTicks(TUint32 aMicroseconds)
|
|
sl@0
|
353 |
{
|
|
sl@0
|
354 |
TUint32 mf32 = (TUint32)TheScheduler.i_TimerMax;
|
|
sl@0
|
355 |
TUint64 mf(mf32);
|
|
sl@0
|
356 |
TUint64 ticks = mf*TUint64(aMicroseconds) + UI64LIT(999999);
|
|
sl@0
|
357 |
ticks /= UI64LIT(1000000);
|
|
sl@0
|
358 |
if (ticks > TUint64(TInt(KMaxTInt)))
|
|
sl@0
|
359 |
return KMaxTInt;
|
|
sl@0
|
360 |
else
|
|
sl@0
|
361 |
return (TInt)ticks;
|
|
sl@0
|
362 |
}
|
|
sl@0
|
363 |
|