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344 lines
9.8 KiB
344 lines
9.8 KiB
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QATOMIC_BFIN_H
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#define QATOMIC_BFIN_H
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE
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inline bool QBasicAtomicInt::isReferenceCountingNative()
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{ return false; }
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inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
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{ return false; }
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#define Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE
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inline bool QBasicAtomicInt::isTestAndSetNative()
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{ return false; }
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inline bool QBasicAtomicInt::isTestAndSetWaitFree()
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{ return false; }
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#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE
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inline bool QBasicAtomicInt::isFetchAndStoreNative()
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{ return false; }
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inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
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{ return false; }
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#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE
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inline bool QBasicAtomicInt::isFetchAndAddNative()
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{ return false; }
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inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
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{ return false; }
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#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
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{ return false; }
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
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{ return false; }
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#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
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{ return false; }
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
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{ return false; }
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#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
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{ return false; }
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
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{ return false; }
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#if defined(Q_OS_LINUX) && defined(Q_CC_GNU)
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QT_BEGIN_INCLUDE_NAMESPACE
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#include <asm/fixed_code.h>
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QT_END_INCLUDE_NAMESPACE
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inline bool QBasicAtomicInt::ref()
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{
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int ret;
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asm volatile("R0 = 1;\n\t"
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"P0 = %3;\n\t"
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"CALL (%2);\n\t"
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"%0 = R0;"
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: "=da" (ret), "=m" (_q_value)
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: "a" (ATOMIC_ADD32), "da" (&_q_value), "m" (_q_value)
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: "R0", "R1", "P0", "RETS", "memory");
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return ret != 0;
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}
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inline bool QBasicAtomicInt::deref()
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{
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int ret;
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asm volatile("R0 = 1;\n\t"
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"P0 = %3;\n\t"
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"CALL (%2);\n\t"
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"%0 = R0;"
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: "=da" (ret), "=m" (_q_value)
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: "a" (ATOMIC_SUB32), "da" (&_q_value), "m" (_q_value)
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: "R0", "R1", "P0", "RETS", "memory");
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return ret != 0;
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}
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inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
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{
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long int readval;
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asm volatile ("P0 = %2;\n\t"
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"R1 = %3;\n\t"
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"R2 = %4;\n\t"
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"CALL (%5);\n\t"
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"%0 = R0;\n\t"
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: "=da" (readval), "=m" (_q_value)
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: "da" (&_q_value),
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"da" (expectedValue),
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"da" (newValue),
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"a" (ATOMIC_CAS32),
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"m" (_q_value)
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: "P0", "R0", "R1", "R2", "RETS", "memory", "cc");
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return readval == expectedValue;
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}
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inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
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{
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asm volatile("R1 = %2;\n\t"
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"P0 = %4;\n\t"
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"CALL (%3);\n\t"
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"%0 = R0;"
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: "=da" (newValue), "=m" (_q_value)
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: "da" (newValue), "a" (ATOMIC_XCHG32), "da" (&_q_value), "m" (_q_value)
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: "R0", "R1", "P0", "RETS", "memory");
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return newValue;
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}
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inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
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{
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int ret;
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asm volatile("R0 = %[val];\n\t"
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"P0 = %[qvalp];\n\t"
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"CALL (%[addr]);\n\t"
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"%[ret] = R1;"
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: [ret] "=da" (ret), "=m" (_q_value)
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: [addr] "a" (ATOMIC_ADD32), [qvalp] "da" (&_q_value), "m" (_q_value), [val] "da" (valueToAdd)
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: "R0", "R1", "P0", "RETS", "memory");
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return ret;
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}
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
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{
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T *readval;
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asm volatile ("P0 = %2;\n\t"
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"R1 = %3;\n\t"
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"R2 = %4;\n\t"
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"CALL (%5);\n\t"
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"%0 = R0;\n\t"
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: "=da" (readval), "=m" (_q_value)
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: "da" (&_q_value),
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"da" (expectedValue),
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"da" (newValue),
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"a" (ATOMIC_CAS32),
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"m" (_q_value)
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: "P0", "R0", "R1", "R2", "RETS", "memory", "cc");
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return readval == expectedValue;
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}
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
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{
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asm volatile("R1 = %2;\n\t"
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"P0 = %4;\n\t"
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"CALL (%3);\n\t"
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"%0 = R0;"
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: "=da" (newValue), "=m" (_q_value)
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: "da" (newValue), "a" (ATOMIC_XCHG32), "da" (&_q_value), "m" (_q_value)
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: "R0", "R1", "P0", "RETS", "memory");
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return newValue;
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}
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
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{
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T* ret;
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asm volatile("R0 = %[val];\n\t"
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"P0 = %[qvalp];\n\t"
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"CALL (%[addr]);\n\t"
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"%[ret] = R1;"
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: [ret] "=da" (ret), "=m" (_q_value)
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: [addr] "a" (ATOMIC_ADD32), [qvalp] "da" (&_q_value), "m" (_q_value), [val] "da" (valueToAdd * sizeof(T))
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: "R0", "R1", "P0", "RETS", "memory");
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return ret;
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}
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#endif // Q_OS_LINUX && Q_CC_GNU
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// Test and set for integers
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inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
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{
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return testAndSetOrdered(expectedValue, newValue);
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}
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inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
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{
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return testAndSetOrdered(expectedValue, newValue);
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}
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inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
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{
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return testAndSetOrdered(expectedValue, newValue);
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}
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// Fetch and store for integers
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inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
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{
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return fetchAndStoreOrdered(newValue);
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}
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inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
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{
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return fetchAndStoreOrdered(newValue);
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}
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inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
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{
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return fetchAndStoreOrdered(newValue);
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}
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// Fetch and add for integers
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inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
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{
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return fetchAndAddOrdered(valueToAdd);
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}
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inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
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{
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return fetchAndAddOrdered(valueToAdd);
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}
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inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
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{
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return fetchAndAddOrdered(valueToAdd);
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}
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// Test and set for pointers
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
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{
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return testAndSetOrdered(expectedValue, newValue);
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}
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
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{
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return testAndSetOrdered(expectedValue, newValue);
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}
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template <typename T>
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Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
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{
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return testAndSetOrdered(expectedValue, newValue);
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}
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// Fetch and store for pointers
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
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{
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return fetchAndStoreOrdered(newValue);
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}
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
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{
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return fetchAndStoreOrdered(newValue);
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}
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
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{
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return fetchAndStoreOrdered(newValue);
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}
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// Fetch and add for pointers
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
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{
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return fetchAndAddOrdered(valueToAdd);
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}
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
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{
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return fetchAndAddOrdered(valueToAdd);
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}
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template <typename T>
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Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
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{
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return fetchAndAddOrdered(valueToAdd);
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}
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QATOMIC_BFIN_H
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