diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2013-03-21 16:28:47 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-03-21 17:39:31 +0000 |
| commit | 62479586532715b6da4777374a6f53b32453385e (patch) | |
| tree | 232004eb56bf36b966ea11ec8295a1b2893ac9e9 /arch/arm64/lib/bitops.c | |
| parent | 2b8cac814cd5a0a305d62dcd1d589faccb705a4d (diff) | |
arm64: klib: Optimised atomic bitops
This patch implements the AArch64-specific atomic bitops functions using
exclusive memory accesses to avoid locking.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/lib/bitops.c')
| -rw-r--r-- | arch/arm64/lib/bitops.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/arch/arm64/lib/bitops.c b/arch/arm64/lib/bitops.c deleted file mode 100644 index aa4965e60acc..000000000000 --- a/arch/arm64/lib/bitops.c +++ /dev/null @@ -1,25 +0,0 @@ -/* - * Copyright (C) 2012 ARM Limited - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <linux/kernel.h> -#include <linux/spinlock.h> -#include <linux/atomic.h> - -#ifdef CONFIG_SMP -arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = { - [0 ... (ATOMIC_HASH_SIZE-1)] = __ARCH_SPIN_LOCK_UNLOCKED -}; -#endif |