1 #define a_ll a_ll
a_ll(volatile int * p)2 static inline int a_ll(volatile int *p)
3 {
4 int v;
5 __asm__ __volatile__ (
6 "ll.w %0, %1"
7 : "=r"(v)
8 : "ZC"(*p));
9 return v;
10 }
11
12 #define a_sc a_sc
a_sc(volatile int * p,int v)13 static inline int a_sc(volatile int *p, int v)
14 {
15 int r;
16 __asm__ __volatile__ (
17 "sc.w %0, %1"
18 : "=r"(r), "=ZC"(*p)
19 : "0"(v) : "memory");
20 return r;
21 }
22
23 #define a_ll_p a_ll_p
a_ll_p(volatile void * p)24 static inline void *a_ll_p(volatile void *p)
25 {
26 void *v;
27 __asm__ __volatile__ (
28 "ll.d %0, %1"
29 : "=r"(v)
30 : "ZC"(*(void *volatile *)p));
31 return v;
32 }
33
34 #define a_sc_p a_sc_p
a_sc_p(volatile void * p,void * v)35 static inline int a_sc_p(volatile void *p, void *v)
36 {
37 long r;
38 __asm__ __volatile__ (
39 "sc.d %0, %1"
40 : "=r"(r), "=ZC"(*(void *volatile *)p)
41 : "0"(v)
42 : "memory");
43 return r;
44 }
45
46 #define a_barrier a_barrier
a_barrier()47 static inline void a_barrier()
48 {
49 __asm__ __volatile__ ("dbar 0" : : : "memory");
50 }
51
52 #define a_pre_llsc a_barrier
53 #define a_post_llsc a_barrier
54