diff options
Diffstat (limited to 'src/corelib/arch/parisc/qatomic_parisc.cpp')
-rw-r--r-- | src/corelib/arch/parisc/qatomic_parisc.cpp | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/src/corelib/arch/parisc/qatomic_parisc.cpp b/src/corelib/arch/parisc/qatomic_parisc.cpp deleted file mode 100644 index 5e59669b22..0000000000 --- a/src/corelib/arch/parisc/qatomic_parisc.cpp +++ /dev/null @@ -1,88 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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. -** -** 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtCore/qglobal.h> -#include <QtCore/qhash.h> - -QT_BEGIN_NAMESPACE - -QT_USE_NAMESPACE - -#define UNLOCKED {-1,-1,-1,-1} -#define UNLOCKED2 UNLOCKED,UNLOCKED -#define UNLOCKED4 UNLOCKED2,UNLOCKED2 -#define UNLOCKED8 UNLOCKED4,UNLOCKED4 -#define UNLOCKED16 UNLOCKED8,UNLOCKED8 -#define UNLOCKED32 UNLOCKED16,UNLOCKED16 -#define UNLOCKED64 UNLOCKED32,UNLOCKED32 -#define UNLOCKED128 UNLOCKED64,UNLOCKED64 -#define UNLOCKED256 UNLOCKED128,UNLOCKED128 - -// use a 4k page for locks -static int locks[256][4] = { UNLOCKED256 }; - -int *getLock(volatile void *addr) -{ return locks[qHash(const_cast<void *>(addr)) % 256]; } - -static int *align16(int *lock) -{ - ulong off = (((ulong) lock) % 16); - return off ? (int *)(ulong(lock) + 16 - off) : lock; -} - -extern "C" { - - int q_ldcw(volatile int *addr); - - void q_atomic_lock(int *lock) - { - // ldcw requires a 16-byte aligned address - volatile int *x = align16(lock); - while (q_ldcw(x) == 0) - ; - } - - void q_atomic_unlock(int *lock) - { lock[0] = lock[1] = lock[2] = lock[3] = -1; } -} - - -QT_END_NAMESPACE |