arm-trusted-firmware/include/lib/spinlock.h
Julius Werner d5dfdeb65f Replace __ASSEMBLY__ with compiler-builtin __ASSEMBLER__
NOTE: __ASSEMBLY__ macro is now deprecated in favor of __ASSEMBLER__.

All common C compilers predefine a macro called __ASSEMBLER__ when
preprocessing a .S file. There is no reason for TF-A to define it's own
__ASSEMBLY__ macro for this purpose instead. To unify code with the
export headers (which use __ASSEMBLER__ to avoid one extra dependency),
let's deprecate __ASSEMBLY__ and switch the code base over to the
predefined standard.

Change-Id: Id7d0ec8cf330195da80499c68562b65cb5ab7417
Signed-off-by: Julius Werner <jwerner@chromium.org>
2019-08-01 13:14:12 -07:00

29 lines
496 B
C

/*
* Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SPINLOCK_H
#define SPINLOCK_H
#ifndef __ASSEMBLER__
#include <stdint.h>
typedef struct spinlock {
volatile uint32_t lock;
} spinlock_t;
void spin_lock(spinlock_t *lock);
void spin_unlock(spinlock_t *lock);
#else
/* Spin lock definitions for use in assembly */
#define SPINLOCK_ASM_ALIGN 2
#define SPINLOCK_ASM_SIZE 4
#endif
#endif /* SPINLOCK_H */