root/arch/arm/include/asm/spinlock_types.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SPINLOCK_TYPES_H
#define __ASM_SPINLOCK_TYPES_H

#ifndef __LINUX_SPINLOCK_TYPES_RAW_H
# error "Please do not include this file directly."
#endif

#define TICKET_SHIFT    16

typedef struct {
        union {
                u32 slock;
                struct __raw_tickets {
#ifdef __ARMEB__
                        u16 next;
                        u16 owner;
#else
                        u16 owner;
                        u16 next;
#endif
                } tickets;
        };
} arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED       { { 0 } }

typedef struct {
        u32 lock;
} arch_rwlock_t;

#define __ARCH_RW_LOCK_UNLOCKED         { 0 }

#endif