1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef __ASM_SPINLOCK_H 20 #define __ASM_SPINLOCK_H 21 #if __LINUX_ARM_ARCH__ < 6 22 #error SMP not supported on pre-ARMv6 CPUs 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 #endif 25 #define __raw_spin_is_locked(x) ((x)->lock != 0) 26 #define __raw_spin_unlock_wait(lock) do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) 27 #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 #define rwlock_is_locked(x) (*((volatile unsigned int *)(x)) != 0) 30 #define __raw_write_can_lock(x) ((x)->lock == 0x80000000) 31 #define __raw_read_can_lock(x) ((x)->lock < 0x80000000) 32 #endif 33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34
