7c8fc35dfc
The <asm-generic/bitops/{atomic,lock}.h> implementations are built around
the atomic-fetch ops, which we implement efficiently for both LSE and
LL/SC systems. Use that instead of our hand-rolled, out-of-line bitops.S.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: yamada.masahiro@socionext.com
Link: https://lore.kernel.org/lkml/1529412794-17720-9-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/*
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*
|
|
* 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/>.
|
|
*/
|
|
#ifndef __ASM_BITOPS_H
|
|
#define __ASM_BITOPS_H
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
#ifndef _LINUX_BITOPS_H
|
|
#error only <linux/bitops.h> can be included directly
|
|
#endif
|
|
|
|
#include <asm-generic/bitops/builtin-__ffs.h>
|
|
#include <asm-generic/bitops/builtin-ffs.h>
|
|
#include <asm-generic/bitops/builtin-__fls.h>
|
|
#include <asm-generic/bitops/builtin-fls.h>
|
|
|
|
#include <asm-generic/bitops/ffz.h>
|
|
#include <asm-generic/bitops/fls64.h>
|
|
#include <asm-generic/bitops/find.h>
|
|
|
|
#include <asm-generic/bitops/sched.h>
|
|
#include <asm-generic/bitops/hweight.h>
|
|
|
|
#include <asm-generic/bitops/atomic.h>
|
|
#include <asm-generic/bitops/lock.h>
|
|
#include <asm-generic/bitops/non-atomic.h>
|
|
#include <asm-generic/bitops/le.h>
|
|
|
|
/*
|
|
* Ext2 is defined to use little-endian byte ordering.
|
|
*/
|
|
#define ext2_set_bit_atomic(lock, nr, p) test_and_set_bit_le(nr, p)
|
|
#define ext2_clear_bit_atomic(lock, nr, p) test_and_clear_bit_le(nr, p)
|
|
|
|
#endif /* __ASM_BITOPS_H */
|