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The Android Open Source Project1dc9e472009-03-03 19:28:35 -08001/****************************************************************************
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 ***
Ben Cheng654325d2012-03-07 21:13:49 -080010 *** 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 ***
The Android Open Source Project1dc9e472009-03-03 19:28:35 -080017 ****************************************************************************
18 ****************************************************************************/
19#ifndef __ASM_SPINLOCK_H
20#define __ASM_SPINLOCK_H
The Android Open Source Project1dc9e472009-03-03 19:28:35 -080021#if __LINUX_ARM_ARCH__ < 6
22#error SMP not supported on pre-ARMv6 CPUs
Ben Cheng654325d2012-03-07 21:13:49 -080023/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
The Android Open Source Project1dc9e472009-03-03 19:28:35 -080024#endif
The Android Open Source Project1dc9e472009-03-03 19:28:35 -080025#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)
The Android Open Source Project1dc9e472009-03-03 19:28:35 -080027#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
Ben Cheng654325d2012-03-07 21:13:49 -080028/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
The Android Open Source Project1dc9e472009-03-03 19:28:35 -080029#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
Ben Cheng654325d2012-03-07 21:13:49 -080033/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */