/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying ** this package. ** ** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@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 Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isTestAndSetNative() { return false; } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isTestAndSetWaitFree() { return false; } #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndStoreNative() { return false; } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndStoreWaitFree() { return false; } #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndAddNative() { return false; } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::isFetchAndAddWaitFree() { return false; } #if defined(Q_OS_LINUX) && defined(Q_CC_GNU) QT_BEGIN_INCLUDE_NAMESPACE #include 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 Q_INLINE_TEMPLATE bool QBasicAtomicPointer::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 Q_INLINE_TEMPLATE T *QBasicAtomicPointer::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 Q_INLINE_TEMPLATE T *QBasicAtomicPointer::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 Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetRelaxed(T *expectedValue, T *newValue) { return testAndSetOrdered(expectedValue, newValue); } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetAcquire(T *expectedValue, T *newValue) { return testAndSetOrdered(expectedValue, newValue); } template Q_INLINE_TEMPLATE bool QBasicAtomicPointer::testAndSetRelease(T *expectedValue, T *newValue) { return testAndSetOrdered(expectedValue, newValue); } // Fetch and store for pointers template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreRelaxed(T *newValue) { return fetchAndStoreOrdered(newValue); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreAcquire(T *newValue) { return fetchAndStoreOrdered(newValue); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndStoreRelease(T *newValue) { return fetchAndStoreOrdered(newValue); } // Fetch and add for pointers template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddRelaxed(qptrdiff valueToAdd) { return fetchAndAddOrdered(valueToAdd); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddAcquire(qptrdiff valueToAdd) { return fetchAndAddOrdered(valueToAdd); } template Q_INLINE_TEMPLATE T *QBasicAtomicPointer::fetchAndAddRelease(qptrdiff valueToAdd) { return fetchAndAddOrdered(valueToAdd); } QT_END_NAMESPACE QT_END_HEADER #endif // QATOMIC_BFIN_H