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 ****************************************************************************
11 ****************************************************************************/
12#ifndef __LINUX_SPINLOCK_H
13#define __LINUX_SPINLOCK_H
14
15#include <linux/preempt.h>
16#include <linux/linkage.h>
17#include <linux/compiler.h>
18#include <linux/thread_info.h>
19#include <linux/kernel.h>
20#include <linux/stringify.h>
21
22#include <asm/system.h>
23
24#define LOCK_SECTION_NAME ".text.lock."KBUILD_BASENAME
25
26#define LOCK_SECTION_START(extra)   ".subsection 1\n\t"   extra   ".ifndef " LOCK_SECTION_NAME "\n\t"   LOCK_SECTION_NAME ":\n\t"   ".endif\n"
27
28#define LOCK_SECTION_END   ".previous\n\t"
29
30#define __lockfunc fastcall __attribute__((section(".spinlock.text")))
31
32#include <linux/spinlock_types.h>
33
34#include <linux/spinlock_up.h>
35
36#define spin_lock_init(lock)   do { *(lock) = SPIN_LOCK_UNLOCKED; } while (0)
37
38#define rwlock_init(lock)   do { *(lock) = RW_LOCK_UNLOCKED; } while (0)
39
40#define spin_is_locked(lock) __raw_spin_is_locked(&(lock)->raw_lock)
41
42#define spin_unlock_wait(lock) __raw_spin_unlock_wait(&(lock)->raw_lock)
43
44#include <linux/spinlock_api_up.h>
45
46#define _raw_spin_lock(lock) __raw_spin_lock(&(lock)->raw_lock)
47#define _raw_spin_lock_flags(lock, flags)   __raw_spin_lock_flags(&(lock)->raw_lock, *(flags))
48#define _raw_spin_trylock(lock) __raw_spin_trylock(&(lock)->raw_lock)
49#define _raw_spin_unlock(lock) __raw_spin_unlock(&(lock)->raw_lock)
50#define _raw_read_lock(rwlock) __raw_read_lock(&(rwlock)->raw_lock)
51#define _raw_read_trylock(rwlock) __raw_read_trylock(&(rwlock)->raw_lock)
52#define _raw_read_unlock(rwlock) __raw_read_unlock(&(rwlock)->raw_lock)
53#define _raw_write_lock(rwlock) __raw_write_lock(&(rwlock)->raw_lock)
54#define _raw_write_trylock(rwlock) __raw_write_trylock(&(rwlock)->raw_lock)
55#define _raw_write_unlock(rwlock) __raw_write_unlock(&(rwlock)->raw_lock)
56
57#define read_can_lock(rwlock) __raw_read_can_lock(&(rwlock)->raw_lock)
58#define write_can_lock(rwlock) __raw_write_can_lock(&(rwlock)->raw_lock)
59
60#define spin_trylock(lock) __cond_lock(_spin_trylock(lock))
61#define read_trylock(lock) __cond_lock(_read_trylock(lock))
62#define write_trylock(lock) __cond_lock(_write_trylock(lock))
63
64#define spin_lock(lock) _spin_lock(lock)
65
66#define spin_lock_nested(lock, subclass) _spin_lock(lock)
67
68#define write_lock(lock) _write_lock(lock)
69#define read_lock(lock) _read_lock(lock)
70
71#define spin_lock_irqsave(lock, flags) _spin_lock_irqsave(lock, flags)
72#define read_lock_irqsave(lock, flags) _read_lock_irqsave(lock, flags)
73#define write_lock_irqsave(lock, flags) _write_lock_irqsave(lock, flags)
74
75#define spin_lock_irq(lock) _spin_lock_irq(lock)
76#define spin_lock_bh(lock) _spin_lock_bh(lock)
77
78#define read_lock_irq(lock) _read_lock_irq(lock)
79#define read_lock_bh(lock) _read_lock_bh(lock)
80
81#define write_lock_irq(lock) _write_lock_irq(lock)
82#define write_lock_bh(lock) _write_lock_bh(lock)
83
84#define spin_unlock(lock) _spin_unlock(lock)
85#define read_unlock(lock) _read_unlock(lock)
86#define write_unlock(lock) _write_unlock(lock)
87#define spin_unlock_irq(lock) _spin_unlock_irq(lock)
88#define read_unlock_irq(lock) _read_unlock_irq(lock)
89#define write_unlock_irq(lock) _write_unlock_irq(lock)
90
91#define spin_unlock_irqrestore(lock, flags)   _spin_unlock_irqrestore(lock, flags)
92#define spin_unlock_bh(lock) _spin_unlock_bh(lock)
93
94#define read_unlock_irqrestore(lock, flags)   _read_unlock_irqrestore(lock, flags)
95#define read_unlock_bh(lock) _read_unlock_bh(lock)
96
97#define write_unlock_irqrestore(lock, flags)   _write_unlock_irqrestore(lock, flags)
98#define write_unlock_bh(lock) _write_unlock_bh(lock)
99
100#define spin_trylock_bh(lock) __cond_lock(_spin_trylock_bh(lock))
101
102#define spin_trylock_irq(lock)  ({   local_irq_disable();   _spin_trylock(lock) ?   1 : ({ local_irq_enable(); 0; });  })
103
104#define spin_trylock_irqsave(lock, flags)  ({   local_irq_save(flags);   _spin_trylock(lock) ?   1 : ({ local_irq_restore(flags); 0; });  })
105
106#include <asm/atomic.h>
107
108#define atomic_dec_and_lock(atomic, lock)   __cond_lock(_atomic_dec_and_lock(atomic, lock))
109
110#define spin_can_lock(lock) (!spin_is_locked(lock))
111
112#endif
113