diff options
Diffstat (limited to 'arch/arm/include/asm/spinlock_types.h')
-rw-r--r-- | arch/arm/include/asm/spinlock_types.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/include/asm/spinlock_types.h b/arch/arm/include/asm/spinlock_types.h new file mode 100644 index 0000000000..0c14b36ef1 --- /dev/null +++ b/arch/arm/include/asm/spinlock_types.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_SPINLOCK_TYPES_H +#define __ASM_SPINLOCK_TYPES_H + +#ifndef __LINUX_SPINLOCK_TYPES_RAW_H +# error "please don't 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 |