diff options
Diffstat (limited to 'lib/locks/exclusive/spinlock.S')
| -rw-r--r-- | lib/locks/exclusive/spinlock.S | 51 |
1 files changed, 5 insertions, 46 deletions
diff --git a/lib/locks/exclusive/spinlock.S b/lib/locks/exclusive/spinlock.S index 5eae2b08..2141f988 100644 --- a/lib/locks/exclusive/spinlock.S +++ b/lib/locks/exclusive/spinlock.S @@ -1,50 +1,9 @@ /* - * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * Neither the name of ARM nor the names of its contributors may be used - * to endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. + * SPDX-License-Identifier: BSD-3-Clause */ -#include <asm_macros.S> - - .globl spin_lock - .globl spin_unlock - - -func spin_lock - mov w2, #1 - sevl -l1: wfe -l2: ldaxr w1, [x0] - cbnz w1, l1 - stxr w1, w2, [x0] - cbnz w1, l2 - ret - - -func spin_unlock - stlr wzr, [x0] - ret +#if !ERROR_DEPRECATED +#include "./aarch64/spinlock.S" +#endif |