mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-17 01:54:01 +08:00
7ca8cf5347
This patch moves ATOMIC_INIT from asm/atomic.h into linux/types.h. This allows users of atomic_t to use ATOMIC_INIT without having to include atomic.h as that way may lead to header loops. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Waiman Long <longman@redhat.com> Link: https://lkml.kernel.org/r/20200729123105.GB7047@gondor.apana.org.au
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* atomic.h: These still suck, but the I-cache hit rate is higher.
|
|
*
|
|
* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
|
|
* Copyright (C) 2000 Anton Blanchard (anton@linuxcare.com.au)
|
|
* Copyright (C) 2007 Kyle McMartin (kyle@parisc-linux.org)
|
|
*
|
|
* Additions by Keith M Wesolowski (wesolows@foobazco.org) based
|
|
* on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>.
|
|
*/
|
|
|
|
#ifndef __ARCH_SPARC_ATOMIC__
|
|
#define __ARCH_SPARC_ATOMIC__
|
|
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/cmpxchg.h>
|
|
#include <asm/barrier.h>
|
|
#include <asm-generic/atomic64.h>
|
|
|
|
int atomic_add_return(int, atomic_t *);
|
|
int atomic_fetch_add(int, atomic_t *);
|
|
int atomic_fetch_and(int, atomic_t *);
|
|
int atomic_fetch_or(int, atomic_t *);
|
|
int atomic_fetch_xor(int, atomic_t *);
|
|
int atomic_cmpxchg(atomic_t *, int, int);
|
|
int atomic_xchg(atomic_t *, int);
|
|
int atomic_fetch_add_unless(atomic_t *, int, int);
|
|
void atomic_set(atomic_t *, int);
|
|
|
|
#define atomic_fetch_add_unless atomic_fetch_add_unless
|
|
|
|
#define atomic_set_release(v, i) atomic_set((v), (i))
|
|
|
|
#define atomic_read(v) READ_ONCE((v)->counter)
|
|
|
|
#define atomic_add(i, v) ((void)atomic_add_return( (int)(i), (v)))
|
|
#define atomic_sub(i, v) ((void)atomic_add_return(-(int)(i), (v)))
|
|
|
|
#define atomic_and(i, v) ((void)atomic_fetch_and((i), (v)))
|
|
#define atomic_or(i, v) ((void)atomic_fetch_or((i), (v)))
|
|
#define atomic_xor(i, v) ((void)atomic_fetch_xor((i), (v)))
|
|
|
|
#define atomic_sub_return(i, v) (atomic_add_return(-(int)(i), (v)))
|
|
#define atomic_fetch_sub(i, v) (atomic_fetch_add (-(int)(i), (v)))
|
|
|
|
#endif /* !(__ARCH_SPARC_ATOMIC__) */
|