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Diffstat (limited to 'src/corelib/arch/qatomic_bfin.h')
| -rw-r--r-- | src/corelib/arch/qatomic_bfin.h | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/src/corelib/arch/qatomic_bfin.h b/src/corelib/arch/qatomic_bfin.h new file mode 100644 index 0000000000..d1d4c91559 --- /dev/null +++ b/src/corelib/arch/qatomic_bfin.h @@ -0,0 +1,343 @@ +/**************************************************************************** +** +** Copyright (C) 2009 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 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 the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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;\n\t" + "P0 = %3;\n\t" + "CALL (%2);\n\t" + "%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;\n\t" + "P0 = %3;\n\t" + "CALL (%2);\n\t" + "%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 bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue) +{ + long int readval; + asm volatile ("P0 = %2;\n\t" + "R1 = %3;\n\t" + "R2 = %4;\n\t" + "CALL (%5);\n\t" + "%0 = R0;\n\t" + : "=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;\n\t" + "P0 = %4;\n\t" + "CALL (%3);\n\t" + "%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; +} + +inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd) +{ + int ret; + asm volatile("R0 = %[val];\n\t" + "P0 = %[qvalp];\n\t" + "CALL (%[addr]);\n\t" + "%[ret] = R1;" + : [ret] "=da" (ret), "=m" (_q_value) + : [addr] "a" (ATOMIC_ADD32), [qvalp] "da" (&_q_value), "m" (_q_value), [val] "da" (valueToAdd) + : "R0", "R1", "P0", "RETS", "memory"); + return ret; +} + +template <typename T> +Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue) +{ + T *readval; + asm volatile ("P0 = %2;\n\t" + "R1 = %3;\n\t" + "R2 = %4;\n\t" + "CALL (%5);\n\t" + "%0 = R0;\n\t" + : "=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;\n\t" + "P0 = %4;\n\t" + "CALL (%3);\n\t" + "%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; +} + +template <typename T> +Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd) +{ + T* ret; + asm volatile("R0 = %[val];\n\t" + "P0 = %[qvalp];\n\t" + "CALL (%[addr]);\n\t" + "%[ret] = R1;" + : [ret] "=da" (ret), "=m" (_q_value) + : [addr] "a" (ATOMIC_ADD32), [qvalp] "da" (&_q_value), "m" (_q_value), [val] "da" (valueToAdd * sizeof(T)) + : "R0", "R1", "P0", "RETS", "memory"); + return ret; +} + + +#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 |