qatomic_bfin.h
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtCore module of the Qt Toolkit.
- **
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- ** accordance with the Qt Commercial License Agreement provided with the
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- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
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- #ifndef QATOMIC_BFIN_H
- #define QATOMIC_BFIN_H
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE
- inline bool QBasicAtomicInt::isReferenceCountingNative()
- { return false; }
- inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
- { return false; }
- #define Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE
- inline bool QBasicAtomicInt::isTestAndSetNative()
- { return false; }
- inline bool QBasicAtomicInt::isTestAndSetWaitFree()
- { return false; }
- #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE
- inline bool QBasicAtomicInt::isFetchAndStoreNative()
- { return false; }
- inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
- { return false; }
- #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE
- inline bool QBasicAtomicInt::isFetchAndAddNative()
- { return false; }
- inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
- { return false; }
- #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
- { return false; }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
- { return false; }
- #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
- { return false; }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
- { return false; }
- #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
- { return false; }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
- { return false; }
- #if defined(Q_OS_LINUX) && defined(Q_CC_GNU)
- QT_BEGIN_INCLUDE_NAMESPACE
- #include <asm/fixed_code.h>
- QT_END_INCLUDE_NAMESPACE
- inline bool QBasicAtomicInt::ref()
- {
- int ret;
- asm volatile("R0 = 1;nt"
- "P0 = %3;nt"
- "CALL (%2);nt"
- "%0 = R0;"
- : "=da" (ret), "=m" (_q_value)
- : "a" (ATOMIC_ADD32), "da" (&_q_value), "m" (_q_value)
- : "R0", "R1", "P0", "RETS", "memory");
- return ret != 0;
- }
- inline bool QBasicAtomicInt::deref()
- {
- int ret;
- asm volatile("R0 = 1;nt"
- "P0 = %3;nt"
- "CALL (%2);nt"
- "%0 = R0;"
- : "=da" (ret), "=m" (_q_value)
- : "a" (ATOMIC_SUB32), "da" (&_q_value), "m" (_q_value)
- : "R0", "R1", "P0", "RETS", "memory");
- return ret != 0;
- }
- inline int QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
- {
- long int readval;
- asm volatile ("P0 = %2;nt"
- "R1 = %3;nt"
- "R2 = %4;nt"
- "CALL (%5);nt"
- "%0 = R0;nt"
- : "=da" (readval), "=m" (_q_value)
- : "da" (&_q_value),
- "da" (expectedValue),
- "da" (newValue),
- "a" (ATOMIC_CAS32),
- "m" (_q_value)
- : "P0", "R0", "R1", "R2", "RETS", "memory", "cc");
- return readval == expectedValue;
- }
- inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
- {
- asm volatile("R1 = %2;nt"
- "P0 = %4;nt"
- "CALL (%3);nt"
- "%0 = R0;"
- : "=da" (newValue), "=m" (_q_value)
- : "da" (newValue), "a" (ATOMIC_XCHG32), "da" (&_q_value), "m" (_q_value)
- : "R0", "R1", "P0", "RETS", "memory");
- return newValue;
- }
- #error "QBasicAtomicInt::fetchAndAddOrdered() not implemented"
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
- {
- T *readval;
- asm volatile ("P0 = %2;nt"
- "R1 = %3;nt"
- "R2 = %4;nt"
- "CALL (%5);nt"
- "%0 = R0;nt"
- : "=da" (readval), "=m" (_q_value)
- : "da" (&_q_value),
- "da" (expectedValue),
- "da" (newValue),
- "a" (ATOMIC_CAS32),
- "m" (_q_value)
- : "P0", "R0", "R1", "R2", "RETS", "memory", "cc");
- return readval == expectedValue;
- }
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
- {
- asm volatile("R1 = %2;nt"
- "P0 = %4;nt"
- "CALL (%3);nt"
- "%0 = R0;"
- : "=da" (newValue), "=m" (_q_value)
- : "da" (newValue), "a" (ATOMIC_XCHG32), "da" (&_q_value), "m" (_q_value)
- : "R0", "R1", "P0", "RETS", "memory");
- return newValue;
- }
- #error "QBasicAtomicPointer<T>::fetchAndAddOrdered() not implemented"
- #endif // Q_OS_LINUX && Q_CC_GNU
- // Test and set for integers
- inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
- {
- return testAndSetOrdered(expectedValue, newValue);
- }
- inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
- {
- return testAndSetOrdered(expectedValue, newValue);
- }
- inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
- {
- return testAndSetOrdered(expectedValue, newValue);
- }
- // Fetch and store for integers
- inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
- {
- return fetchAndStoreOrdered(newValue);
- }
- inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
- {
- return fetchAndStoreOrdered(newValue);
- }
- inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
- {
- return fetchAndStoreOrdered(newValue);
- }
- // Fetch and add for integers
- inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
- {
- return fetchAndAddOrdered(valueToAdd);
- }
- inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
- {
- return fetchAndAddOrdered(valueToAdd);
- }
- inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
- {
- return fetchAndAddOrdered(valueToAdd);
- }
- // Test and set for pointers
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
- {
- return testAndSetOrdered(expectedValue, newValue);
- }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
- {
- return testAndSetOrdered(expectedValue, newValue);
- }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
- {
- return testAndSetOrdered(expectedValue, newValue);
- }
- // Fetch and store for pointers
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
- {
- return fetchAndStoreOrdered(newValue);
- }
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
- {
- return fetchAndStoreOrdered(newValue);
- }
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
- {
- return fetchAndStoreOrdered(newValue);
- }
- // Fetch and add for pointers
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
- {
- return fetchAndAddOrdered(valueToAdd);
- }
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
- {
- return fetchAndAddOrdered(valueToAdd);
- }
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
- {
- return fetchAndAddOrdered(valueToAdd);
- }
- QT_END_NAMESPACE
- QT_END_HEADER
- #endif // QATOMIC_BFIN_H