diff options
Diffstat (limited to 'kernel/arch/mips/include/asm/spinlock_types.h')
-rw-r--r-- | kernel/arch/mips/include/asm/spinlock_types.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/kernel/arch/mips/include/asm/spinlock_types.h b/kernel/arch/mips/include/asm/spinlock_types.h new file mode 100644 index 000000000..9b2528e61 --- /dev/null +++ b/kernel/arch/mips/include/asm/spinlock_types.h @@ -0,0 +1,37 @@ +#ifndef _ASM_SPINLOCK_TYPES_H +#define _ASM_SPINLOCK_TYPES_H + +#ifndef __LINUX_SPINLOCK_TYPES_H +# error "please don't include this file directly" +#endif + +#include <linux/types.h> + +#include <asm/byteorder.h> + +typedef union { + /* + * bits 0..15 : serving_now + * bits 16..31 : ticket + */ + u32 lock; + struct { +#ifdef __BIG_ENDIAN + u16 ticket; + u16 serving_now; +#else + u16 serving_now; + u16 ticket; +#endif + } h; +} arch_spinlock_t; + +#define __ARCH_SPIN_LOCK_UNLOCKED { .lock = 0 } + +typedef struct { + volatile unsigned int lock; +} arch_rwlock_t; + +#define __ARCH_RW_LOCK_UNLOCKED { 0 } + +#endif |