locking/atomic: sparc: move to ARCH_ATOMIC

We'd like all architectures to convert to ARCH_ATOMIC, as once all
architectures are converted it will be possible to make significant
cleanups to the atomics headers, and this will make it much easier to
generically enable atomic functionality (e.g. debug logic in the
instrumented wrappers).

As a step towards that, this patch migrates sparc to ARCH_ATOMIC. The
arch code provides arch_{atomic,atomic64,xchg,cmpxchg}*(), and common
code wraps these with optional instrumentation to provide the regular
functions.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210525140232.53872-31-mark.rutland@arm.com

2 files changed, 33 insertions, 33 deletions

diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c
index 281fa634bb1a..8b81d0f00c97 100644
--- a/arch/sparc/lib/atomic32.c
+++ b/arch/sparc/lib/atomic32.c
@@ -29,7 +29,7 @@ static DEFINE_SPINLOCK(dummy);
 #endif /* SMP */
 
 #define ATOMIC_FETCH_OP(op, c_op)					\
-int atomic_fetch_##op(int i, atomic_t *v)				\
+int arch_atomic_fetch_##op(int i, atomic_t *v)				\
 {									\
 	int ret;							\
 	unsigned long flags;						\
@@ -41,10 +41,10 @@ int atomic_fetch_##op(int i, atomic_t *v)				\
 	spin_unlock_irqrestore(ATOMIC_HASH(v), flags);			\
 	return ret;							\
 }									\
-EXPORT_SYMBOL(atomic_fetch_##op);
+EXPORT_SYMBOL(arch_atomic_fetch_##op);
 
 #define ATOMIC_OP_RETURN(op, c_op)					\
-int atomic_##op##_return(int i, atomic_t *v)				\
+int arch_atomic_##op##_return(int i, atomic_t *v)			\
 {									\
 	int ret;							\
 	unsigned long flags;						\
@@ -55,7 +55,7 @@ int atomic_##op##_return(int i, atomic_t *v)				\
 	spin_unlock_irqrestore(ATOMIC_HASH(v), flags);			\
 	return ret;							\
 }									\
-EXPORT_SYMBOL(atomic_##op##_return);
+EXPORT_SYMBOL(arch_atomic_##op##_return);
 
 ATOMIC_OP_RETURN(add, +=)
 
@@ -67,7 +67,7 @@ ATOMIC_FETCH_OP(xor, ^=)
 #undef ATOMIC_FETCH_OP
 #undef ATOMIC_OP_RETURN
 
-int atomic_xchg(atomic_t *v, int new)
+int arch_atomic_xchg(atomic_t *v, int new)
 {
 	int ret;
 	unsigned long flags;
@@ -78,9 +78,9 @@ int atomic_xchg(atomic_t *v, int new)
 	spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
 	return ret;
 }
-EXPORT_SYMBOL(atomic_xchg);
+EXPORT_SYMBOL(arch_atomic_xchg);
 
-int atomic_cmpxchg(atomic_t *v, int old, int new)
+int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
 {
 	int ret;
 	unsigned long flags;
@@ -93,9 +93,9 @@ int atomic_cmpxchg(atomic_t *v, int old, int new)
 	spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
 	return ret;
 }
-EXPORT_SYMBOL(atomic_cmpxchg);
+EXPORT_SYMBOL(arch_atomic_cmpxchg);
 
-int atomic_fetch_add_unless(atomic_t *v, int a, int u)
+int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
 {
 	int ret;
 	unsigned long flags;
@@ -107,10 +107,10 @@ int atomic_fetch_add_unless(atomic_t *v, int a, int u)
 	spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
 	return ret;
 }
-EXPORT_SYMBOL(atomic_fetch_add_unless);
+EXPORT_SYMBOL(arch_atomic_fetch_add_unless);
 
 /* Atomic operations are already serializing */
-void atomic_set(atomic_t *v, int i)
+void arch_atomic_set(atomic_t *v, int i)
 {
 	unsigned long flags;
 
@@ -118,7 +118,7 @@ void atomic_set(atomic_t *v, int i)
 	v->counter = i;
 	spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
 }
-EXPORT_SYMBOL(atomic_set);
+EXPORT_SYMBOL(arch_atomic_set);
 
 unsigned long ___set_bit(unsigned long *addr, unsigned long mask)
 {
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index 456b65a30ecf..8245d4a97301 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -19,7 +19,7 @@
 	 */
 
 #define ATOMIC_OP(op)							\
-ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
+ENTRY(arch_atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
 	BACKOFF_SETUP(%o2);						\
 1:	lduw	[%o1], %g1;						\
 	op	%g1, %o0, %g7;						\
@@ -30,11 +30,11 @@ ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
 	retl;								\
 	 nop;								\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
-ENDPROC(atomic_##op);							\
-EXPORT_SYMBOL(atomic_##op);
+ENDPROC(arch_atomic_##op);						\
+EXPORT_SYMBOL(arch_atomic_##op);
 
 #define ATOMIC_OP_RETURN(op)						\
-ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
+ENTRY(arch_atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */\
 	BACKOFF_SETUP(%o2);						\
 1:	lduw	[%o1], %g1;						\
 	op	%g1, %o0, %g7;						\
@@ -45,11 +45,11 @@ ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
 	retl;								\
 	 sra	%g1, 0, %o0;						\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
-ENDPROC(atomic_##op##_return);						\
-EXPORT_SYMBOL(atomic_##op##_return);
+ENDPROC(arch_atomic_##op##_return);					\
+EXPORT_SYMBOL(arch_atomic_##op##_return);
 
 #define ATOMIC_FETCH_OP(op)						\
-ENTRY(atomic_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
+ENTRY(arch_atomic_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
 	BACKOFF_SETUP(%o2);						\
 1:	lduw	[%o1], %g1;						\
 	op	%g1, %o0, %g7;						\
@@ -60,8 +60,8 @@ ENTRY(atomic_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
 	retl;								\
 	 sra	%g1, 0, %o0;						\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
-ENDPROC(atomic_fetch_##op);						\
-EXPORT_SYMBOL(atomic_fetch_##op);
+ENDPROC(arch_atomic_fetch_##op);					\
+EXPORT_SYMBOL(arch_atomic_fetch_##op);
 
 ATOMIC_OP(add)
 ATOMIC_OP_RETURN(add)
@@ -85,7 +85,7 @@ ATOMIC_FETCH_OP(xor)
 #undef ATOMIC_OP
 
 #define ATOMIC64_OP(op)							\
-ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
+ENTRY(arch_atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
 	BACKOFF_SETUP(%o2);						\
 1:	ldx	[%o1], %g1;						\
 	op	%g1, %o0, %g7;						\
@@ -96,11 +96,11 @@ ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */		\
 	retl;								\
 	 nop;								\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
-ENDPROC(atomic64_##op);							\
-EXPORT_SYMBOL(atomic64_##op);
+ENDPROC(arch_atomic64_##op);						\
+EXPORT_SYMBOL(arch_atomic64_##op);
 
 #define ATOMIC64_OP_RETURN(op)						\
-ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
+ENTRY(arch_atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
 	BACKOFF_SETUP(%o2);						\
 1:	ldx	[%o1], %g1;						\
 	op	%g1, %o0, %g7;						\
@@ -111,11 +111,11 @@ ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */	\
 	retl;								\
 	 op	%g1, %o0, %o0;						\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
-ENDPROC(atomic64_##op##_return);					\
-EXPORT_SYMBOL(atomic64_##op##_return);
+ENDPROC(arch_atomic64_##op##_return);					\
+EXPORT_SYMBOL(arch_atomic64_##op##_return);
 
 #define ATOMIC64_FETCH_OP(op)						\
-ENTRY(atomic64_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
+ENTRY(arch_atomic64_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
 	BACKOFF_SETUP(%o2);						\
 1:	ldx	[%o1], %g1;						\
 	op	%g1, %o0, %g7;						\
@@ -126,8 +126,8 @@ ENTRY(atomic64_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
 	retl;								\
 	 mov	%g1, %o0;						\
 2:	BACKOFF_SPIN(%o2, %o3, 1b);					\
-ENDPROC(atomic64_fetch_##op);						\
-EXPORT_SYMBOL(atomic64_fetch_##op);
+ENDPROC(arch_atomic64_fetch_##op);					\
+EXPORT_SYMBOL(arch_atomic64_fetch_##op);
 
 ATOMIC64_OP(add)
 ATOMIC64_OP_RETURN(add)
@@ -150,7 +150,7 @@ ATOMIC64_FETCH_OP(xor)
 #undef ATOMIC64_OP_RETURN
 #undef ATOMIC64_OP
 
-ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */
+ENTRY(arch_atomic64_dec_if_positive) /* %o0 = atomic_ptr */
 	BACKOFF_SETUP(%o2)
 1:	ldx	[%o0], %g1
 	brlez,pn %g1, 3f
@@ -162,5 +162,5 @@ ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */
 3:	retl
 	 sub	%g1, 1, %o0
 2:	BACKOFF_SPIN(%o2, %o3, 1b)
-ENDPROC(atomic64_dec_if_positive)
-EXPORT_SYMBOL(atomic64_dec_if_positive)
+ENDPROC(arch_atomic64_dec_if_positive)
+EXPORT_SYMBOL(arch_atomic64_dec_if_positive)