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- /*
- * Copyright (C) 2012 ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
- #ifndef __ASM_SPINLOCK_TYPES_H
- #define __ASM_SPINLOCK_TYPES_H
- #if !defined(__LINUX_SPINLOCK_TYPES_H) && !defined(__ASM_SPINLOCK_H)
- # error "please don't include this file directly"
- #endif
- #include <linux/types.h>
- #define TICKET_SHIFT 16
- typedef struct {
- #ifdef __AARCH64EB__
- u16 next;
- u16 owner;
- #else
- u16 owner;
- u16 next;
- #endif
- } __aligned(4) arch_spinlock_t;
- #define __ARCH_SPIN_LOCK_UNLOCKED { 0 , 0 }
- typedef struct {
- volatile unsigned int lock;
- } arch_rwlock_t;
- #define __ARCH_RW_LOCK_UNLOCKED { 0 }
- #endif
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