Subversion Repositories HelenOS-historic

Rev

Rev 534 | Rev 627 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 534 Rev 625
Line 29... Line 29...
29 
#ifndef __ia64_ATOMIC_H__
 29 
#ifndef __ia64_ATOMIC_H__
30 
#define __ia64_ATOMIC_H__
 30 
#define __ia64_ATOMIC_H__
31 
 
 31 
 
32 
#include <arch/types.h>
 32 
#include <arch/types.h>
33 
 
 33 
 
34 
typedef volatile __u64 atomic_t;
 34 
typedef struct { volatile __u64 count; } atomic_t;
35 
 
 35 
 
36 
static inline atomic_t atomic_add(atomic_t *val, int imm)
 36 
static inline atomic_t atomic_add(atomic_t *val, int imm)
37 
{
 37 
{
38 
    atomic_t v;
 38 
    atomic_t v;
39 
 
 39 
 
40 
   
 40 
   
41 
    __asm__ volatile ("fetchadd8.rel %0 = %1, %2\n" : "=r" (v), "+m" (*val) : "i" (imm));
 41 
    __asm__ volatile ("fetchadd8.rel %0 = %1, %2\n" : "=r" (v), "+m" (val->count) : "i" (imm));
42 
 
 42 
 
43 
    return v;
 43 
    return v;
44 
}
 44 
}
45 
 
 45 
 
- 
 
 46 
static inline void atomic_set(atomic_t *val, __u64 i)
- 
 
 47 
{
- 
 
 48 
    val->count = i;
- 
 
 49 
}
- 
 
 50 
 
- 
 
 51 
static inline __u32 atomic_get(atomic_t *val)
- 
 
 52 
{
- 
 
 53 
    return val->count;
- 
 
 54 
}
- 
 
 55 
 
46 
static inline void atomic_inc(atomic_t *val) { atomic_add(val, 1); }
 56 
static inline void atomic_inc(atomic_t *val) { atomic_add(val, 1); }
47 
static inline void atomic_dec(atomic_t *val) { atomic_add(val, -1); }
 57 
static inline void atomic_dec(atomic_t *val) { atomic_add(val, -1); }
48 
 
 58 
 
49 
 
 59 
 
50 
static inline atomic_t atomic_inc_pre(atomic_t *val) { return atomic_add(val, 1); }
 60 
static inline atomic_t atomic_inc_pre(atomic_t *val) { return atomic_add(val, 1); }