diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32-common-asm.h')
-rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32-common-asm.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32-common-asm.h b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32-common-asm.h new file mode 100644 index 000000000..82696bbbf --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ubicom32-common-asm.h @@ -0,0 +1,49 @@ +/* + * arch/ubicom32/include/asm/ubicom32-common-asm.h + * Ubicom32 atomic lock operations. + * + * (C) Copyright 2009, Ubicom, Inc. + * + * This file is part of the Ubicom32 Linux Kernel Port. + * + * The Ubicom32 Linux Kernel Port is free software: you can redistribute + * it and/or modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, either version 2 of the + * License, or (at your option) any later version. + * + * The Ubicom32 Linux Kernel Port is distributed in the hope that it + * will be useful, but WITHOUT ANY WARRANTY; without even the implied + * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the Ubicom32 Linux Kernel Port. If not, + * see <http://www.gnu.org/licenses/>. + * + * Ubicom32 implementation derived from (with many thanks): + * arch/m68knommu + * arch/blackfin + * arch/parisc + */ + +#ifndef _ASM_UBICOM32_UBICOM32_COMMON_ASM_H +#define _ASM_UBICOM32_UBICOM32_COMMON_ASM_H + +/* + * atomic_lock_acquire macro + * Equivalent to __atomic_lock_acquire() + */ +.macro atomic_lock_acquire + bset scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT + jmpne.f .-4 +.endm + +/* + * atomic_lock_release macro + * Equivalent to __atomic_lock_release() + */ +.macro atomic_lock_release + bclr scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT +.endm + +#endif /* _ASM_UBICOM32_UBICOM32_COMMON_ASM_H */ |