spinlock_types.h
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_CSKY_SPINLOCK_TYPES_H
#define __ASM_CSKY_SPINLOCK_TYPES_H
#ifndef __LINUX_SPINLOCK_TYPES_H
# error "please don't include this file directly"
#endif
#define TICKET_NEXT 16
typedef struct {
union {
u32 lock;
struct __raw_tickets {
/* little endian */
u16 owner;
u16 next;
} tickets;
};
} arch_spinlock_t;
#define __ARCH_SPIN_LOCK_UNLOCKED { { 0 } }
#ifdef CONFIG_QUEUED_RWLOCKS
#include <asm-generic/qrwlock_types.h>
#else /* CONFIG_NR_CPUS > 2 */
typedef struct {
u32 lock;
} arch_rwlock_t;
#define __ARCH_RW_LOCK_UNLOCKED { 0 }
#endif /* CONFIG_QUEUED_RWLOCKS */
#endif /* __ASM_CSKY_SPINLOCK_TYPES_H */