qatomic_avr32.h
上传用户:detong
上传日期:2022-06-22
资源大小:20675k
文件大小:11k
- /****************************************************************************
- **
- ** 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.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** 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
- ** to ensure GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
- ** Qt for Windows(R) Licensees
- ** As a special exception, Nokia, as the sole copyright holder for Qt
- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
- **
- ** If you are unsure which license is appropriate for your use, please
- ** contact the sales department at qt-sales@nokia.com.
- **
- ****************************************************************************/
- #ifndef QATOMIC_AVR32_H
- #define QATOMIC_AVR32_H
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
- inline bool QBasicAtomicInt::isReferenceCountingNative()
- { return true; }
- inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
- { return false; }
- #define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
- inline bool QBasicAtomicInt::isTestAndSetNative()
- { return true; }
- inline bool QBasicAtomicInt::isTestAndSetWaitFree()
- { return false; }
- #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
- #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE
- inline bool QBasicAtomicInt::isFetchAndStoreNative()
- { return true; }
- inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
- { return true; }
- #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
- inline bool QBasicAtomicInt::isFetchAndAddNative()
- { return true; }
- inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
- { return false; }
- #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
- { return true; }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
- { return false; }
- #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
- #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
- { return true; }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
- { return true; }
- #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
- { return true; }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
- { return false; }
- #if defined(QT_BUILD_QREGION_CPP)
- #warning "workaround!"
- __attribute__((noinline))
- #else
- inline
- #endif
- bool QBasicAtomicInt::ref()
- {
- register int newValue;
- asm volatile("0:n"
- "ssrf %[LOCK]n"
- "ld.w %[newValue], %[_q_value]n"
- "add %[newValue], %[ONE]n"
- "stcond %[_q_value], %[newValue]n"
- "brne 0bn"
- : [newValue] "=&r"(newValue),
- [_q_value] "+RKs16"(_q_value)
- : [LOCK] "i"(0x5),
- [ONE] "r"(1)
- : "cc", "memory");
- return newValue;
- }
- inline bool QBasicAtomicInt::deref()
- {
- register int newValue;
- asm volatile("0:n"
- "ssrf %[LOCK]n"
- "ld.w %[newValue], %[_q_value]n"
- "sub %[newValue], %[ONE]n"
- "stcond %[_q_value], %[newValue]n"
- "brne 0bn"
- : [newValue] "=&r"(newValue),
- [_q_value] "+RKs16"(_q_value)
- : [LOCK] "i"(0x5),
- [ONE] "i"(1)
- : "cc", "memory");
- return newValue;
- }
- inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
- {
- register int originalValue;
- asm volatile("0:n"
- "ssrf %[LOCK]n"
- "ld.w %[originalValue], %[_q_value]n"
- "cp.w %[originalValue], %[expectedValue]n"
- "brne 0fn"
- "stcond %[_q_value], %[newValue]n"
- "brne 0bn"
- "0:n"
- : [originalValue] "=&r"(originalValue),
- [_q_value] "+RKs16"(_q_value)
- : [LOCK] "i"(0x5),
- [expectedValue] "r"(expectedValue),
- [newValue] "r"(newValue)
- : "cc", "memory");
- return originalValue == expectedValue;
- }
- 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);
- }
- inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
- {
- register int originalValue;
- asm volatile("xchg %[originalValue], %[_q_value], %[newValue]"
- : [originalValue] "=&r"(originalValue),
- "+m" (_q_value)
- : [_q_value] "r"(&_q_value),
- [newValue] "r"(newValue)
- : "cc", "memory");
- return originalValue;
- }
- 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);
- }
- inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
- {
- register int originalValue, newValue;
- asm volatile("0:n"
- "ssrf %[LOCK]n"
- "ld.w %[originalValue], %[_q_value]n"
- "add %[newValue], %[originalValue], %[valueToAdd]n"
- "stcond %[_q_value], %[newValue]n"
- "brne 0bn"
- : [originalValue] "=&r"(originalValue),
- [newValue] "=&r"(newValue),
- [_q_value] "+RKs16"(_q_value)
- : [LOCK] "i"(0x5),
- [valueToAdd] "r"(valueToAdd)
- : "cc", "memory");
- return originalValue;
- }
- 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);
- }
- template <typename T>
- Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
- {
- register T *originalValue;
- asm volatile("0:n"
- "ssrf %[LOCK]n"
- "ld.w %[originalValue], %[_q_value]n"
- "cp.w %[originalValue], %[expectedValue]n"
- "brne 0fn"
- "stcond %[_q_value], %[newValue]n"
- "brne 0bn"
- "0:n"
- : [originalValue] "=&r"(originalValue),
- [_q_value] "+RKs16"(_q_value)
- : [LOCK] "i"(0x5),
- [expectedValue] "r"(expectedValue),
- [newValue] "r"(newValue)
- : "cc", "memory");
- return originalValue == expectedValue;
- }
- 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);
- }
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
- {
- register T *originalValue;
- asm volatile("xchg %[originalValue], %[_q_value], %[newValue]"
- : [originalValue] "=&r"(originalValue),
- "+m" (_q_value)
- : [_q_value] "r"(&_q_value),
- [newValue] "r"(newValue)
- : "cc", "memory");
- return originalValue;
- }
- 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);
- }
- template <typename T>
- Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
- {
- register T *originalValue, *newValue;
- asm volatile("0:n"
- "ssrf %[LOCK]n"
- "ld.w %[originalValue], %[_q_value]n"
- "add %[newValue], %[originalValue], %[valueToAdd]n"
- "stcond %[_q_value], %[newValue]n"
- "brne 0bn"
- : [originalValue] "=&r"(originalValue),
- [newValue] "=&r"(newValue),
- [_q_value] "+RKs16"(_q_value)
- : [LOCK] "i"(0x5),
- [valueToAdd] "r"(valueToAdd * sizeof(T))
- : "cc", "memory");
- return originalValue;
- }
- 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_AVR32_H