diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/qoriq/shmsupp/lock.S')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/shmsupp/lock.S | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/shmsupp/lock.S b/c/src/lib/libbsp/powerpc/qoriq/shmsupp/lock.S deleted file mode 100644 index c6e72a7533..0000000000 --- a/c/src/lib/libbsp/powerpc/qoriq/shmsupp/lock.S +++ /dev/null @@ -1,52 +0,0 @@ -/** - * @file - * - * @ingroup QorIQInterCom - * - * @brief qoriq_spin_lock() and qoriq_spin_unlock() implementation. - */ - -/* - * Copyright (c) 2011 embedded brains GmbH. All rights reserved. - * - * embedded brains GmbH - * Obere Lagerstr. 30 - * 82178 Puchheim - * Germany - * <rtems@embedded-brains.de> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include <libcpu/powerpc-utility.h> - - .global qoriq_spin_lock - .global qoriq_spin_unlock - -qoriq_spin_lock: - li r0, 1 - mfmsr r4 - GET_INTERRUPT_MASK r5 - andc r5, r4, r5 - b 2f -1: - mtmsr r4 -2: - lwarx r6, r0, r3 - cmpwi r6, 0 - bne 2b - mtmsr r5 - stwcx. r0, r0, r3 - bne 1b - isync - mr r3, r4 - blr - -qoriq_spin_unlock: - msync - li r0, 0 - stw r0, 0(r3) - mtmsr r4 - blr |