| /* |
| * 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 |