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Diffstat (limited to 'arch/frv/include/asm/atomic.h')
-rw-r--r--arch/frv/include/asm/atomic.h107
1 files changed, 54 insertions, 53 deletions
diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
index 102190a61..0da689def 100644
--- a/arch/frv/include/asm/atomic.h
+++ b/arch/frv/include/asm/atomic.h
@@ -15,7 +15,6 @@
#define _ASM_ATOMIC_H
#include <linux/types.h>
-#include <asm/spr-regs.h>
#include <asm/cmpxchg.h>
#include <asm/barrier.h>
@@ -23,6 +22,8 @@
#error not SMP safe
#endif
+#include <asm/atomic_defs.h>
+
/*
* Atomic operations that C can't guarantee us. Useful for
* resource counting etc..
@@ -34,56 +35,26 @@
#define atomic_read(v) ACCESS_ONCE((v)->counter)
#define atomic_set(v, i) (((v)->counter) = (i))
-#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
-static inline int atomic_add_return(int i, atomic_t *v)
+static inline int atomic_inc_return(atomic_t *v)
{
- unsigned long val;
+ return __atomic_add_return(1, &v->counter);
+}
- asm("0: \n"
- " orcc gr0,gr0,gr0,icc3 \n" /* set ICC3.Z */
- " ckeq icc3,cc7 \n"
- " ld.p %M0,%1 \n" /* LD.P/ORCR must be atomic */
- " orcr cc7,cc7,cc3 \n" /* set CC3 to true */
- " add%I2 %1,%2,%1 \n"
- " cst.p %1,%M0 ,cc3,#1 \n"
- " corcc gr29,gr29,gr0 ,cc3,#1 \n" /* clear ICC3.Z if store happens */
- " beq icc3,#0,0b \n"
- : "+U"(v->counter), "=&r"(val)
- : "NPr"(i)
- : "memory", "cc7", "cc3", "icc3"
- );
+static inline int atomic_dec_return(atomic_t *v)
+{
+ return __atomic_sub_return(1, &v->counter);
+}
- return val;
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+ return __atomic_add_return(i, &v->counter);
}
static inline int atomic_sub_return(int i, atomic_t *v)
{
- unsigned long val;
-
- asm("0: \n"
- " orcc gr0,gr0,gr0,icc3 \n" /* set ICC3.Z */
- " ckeq icc3,cc7 \n"
- " ld.p %M0,%1 \n" /* LD.P/ORCR must be atomic */
- " orcr cc7,cc7,cc3 \n" /* set CC3 to true */
- " sub%I2 %1,%2,%1 \n"
- " cst.p %1,%M0 ,cc3,#1 \n"
- " corcc gr29,gr29,gr0 ,cc3,#1 \n" /* clear ICC3.Z if store happens */
- " beq icc3,#0,0b \n"
- : "+U"(v->counter), "=&r"(val)
- : "NPr"(i)
- : "memory", "cc7", "cc3", "icc3"
- );
-
- return val;
+ return __atomic_sub_return(i, &v->counter);
}
-#else
-
-extern int atomic_add_return(int i, atomic_t *v);
-extern int atomic_sub_return(int i, atomic_t *v);
-
-#endif
-
static inline int atomic_add_negative(int i, atomic_t *v)
{
return atomic_add_return(i, v) < 0;
@@ -101,17 +72,14 @@ static inline void atomic_sub(int i, atomic_t *v)
static inline void atomic_inc(atomic_t *v)
{
- atomic_add_return(1, v);
+ atomic_inc_return(v);
}
static inline void atomic_dec(atomic_t *v)
{
- atomic_sub_return(1, v);
+ atomic_dec_return(v);
}
-#define atomic_dec_return(v) atomic_sub_return(1, (v))
-#define atomic_inc_return(v) atomic_add_return(1, (v))
-
#define atomic_sub_and_test(i,v) (atomic_sub_return((i), (v)) == 0)
#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0)
@@ -120,18 +88,19 @@ static inline void atomic_dec(atomic_t *v)
* 64-bit atomic ops
*/
typedef struct {
- volatile long long counter;
+ long long counter;
} atomic64_t;
#define ATOMIC64_INIT(i) { (i) }
-static inline long long atomic64_read(atomic64_t *v)
+static inline long long atomic64_read(const atomic64_t *v)
{
long long counter;
asm("ldd%I1 %M1,%0"
: "=e"(counter)
: "m"(v->counter));
+
return counter;
}
@@ -142,10 +111,25 @@ static inline void atomic64_set(atomic64_t *v, long long i)
: "e"(i));
}
-extern long long atomic64_inc_return(atomic64_t *v);
-extern long long atomic64_dec_return(atomic64_t *v);
-extern long long atomic64_add_return(long long i, atomic64_t *v);
-extern long long atomic64_sub_return(long long i, atomic64_t *v);
+static inline long long atomic64_inc_return(atomic64_t *v)
+{
+ return __atomic64_add_return(1, &v->counter);
+}
+
+static inline long long atomic64_dec_return(atomic64_t *v)
+{
+ return __atomic64_sub_return(1, &v->counter);
+}
+
+static inline long long atomic64_add_return(long long i, atomic64_t *v)
+{
+ return __atomic64_add_return(i, &v->counter);
+}
+
+static inline long long atomic64_sub_return(long long i, atomic64_t *v)
+{
+ return __atomic64_sub_return(i, &v->counter);
+}
static inline long long atomic64_add_negative(long long i, atomic64_t *v)
{
@@ -176,6 +160,7 @@ static inline void atomic64_dec(atomic64_t *v)
#define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
#define atomic64_inc_and_test(v) (atomic64_inc_return((v)) == 0)
+
#define atomic_cmpxchg(v, old, new) (cmpxchg(&(v)->counter, old, new))
#define atomic_xchg(v, new) (xchg(&(v)->counter, new))
#define atomic64_cmpxchg(v, old, new) (__cmpxchg_64(old, new, &(v)->counter))
@@ -196,5 +181,21 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
return c;
}
+#define ATOMIC_OP(op) \
+static inline void atomic_##op(int i, atomic_t *v) \
+{ \
+ (void)__atomic32_fetch_##op(i, &v->counter); \
+} \
+ \
+static inline void atomic64_##op(long long i, atomic64_t *v) \
+{ \
+ (void)__atomic64_fetch_##op(i, &v->counter); \
+}
+
+ATOMIC_OP(or)
+ATOMIC_OP(and)
+ATOMIC_OP(xor)
+
+#undef ATOMIC_OP
#endif /* _ASM_ATOMIC_H */