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Diffstat (limited to 'arch/arm/include/asm/atomic.h')
-rw-r--r--arch/arm/include/asm/atomic.h142
1 files changed, 71 insertions, 71 deletions
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index f74756641410..f0e3b01afa74 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/atomic.h
*
* Copyright (C) 1996 Russell King.
* Copyright (C) 2002 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef __ASM_ARM_ATOMIC_H
#define __ASM_ARM_ATOMIC_H
@@ -18,8 +15,6 @@
#include <asm/barrier.h>
#include <asm/cmpxchg.h>
-#define ATOMIC_INIT(i) { (i) }
-
#ifdef __KERNEL__
/*
@@ -27,8 +22,8 @@
* strex/ldrex monitor on some implementations. The reason we can use it for
* atomic_set() is the clrex or dummy strex done on every exception return.
*/
-#define atomic_read(v) READ_ONCE((v)->counter)
-#define atomic_set(v,i) WRITE_ONCE(((v)->counter), (i))
+#define arch_atomic_read(v) READ_ONCE((v)->counter)
+#define arch_atomic_set(v,i) WRITE_ONCE(((v)->counter), (i))
#if __LINUX_ARM_ARCH__ >= 6
@@ -39,7 +34,7 @@
*/
#define ATOMIC_OP(op, c_op, asm_op) \
-static inline void atomic_##op(int i, atomic_t *v) \
+static inline void arch_atomic_##op(int i, atomic_t *v) \
{ \
unsigned long tmp; \
int result; \
@@ -57,7 +52,7 @@ static inline void atomic_##op(int i, atomic_t *v) \
} \
#define ATOMIC_OP_RETURN(op, c_op, asm_op) \
-static inline int atomic_##op##_return_relaxed(int i, atomic_t *v) \
+static inline int arch_atomic_##op##_return_relaxed(int i, atomic_t *v) \
{ \
unsigned long tmp; \
int result; \
@@ -78,7 +73,7 @@ static inline int atomic_##op##_return_relaxed(int i, atomic_t *v) \
}
#define ATOMIC_FETCH_OP(op, c_op, asm_op) \
-static inline int atomic_fetch_##op##_relaxed(int i, atomic_t *v) \
+static inline int arch_atomic_fetch_##op##_relaxed(int i, atomic_t *v) \
{ \
unsigned long tmp; \
int result, val; \
@@ -98,17 +93,17 @@ static inline int atomic_fetch_##op##_relaxed(int i, atomic_t *v) \
return result; \
}
-#define atomic_add_return_relaxed atomic_add_return_relaxed
-#define atomic_sub_return_relaxed atomic_sub_return_relaxed
-#define atomic_fetch_add_relaxed atomic_fetch_add_relaxed
-#define atomic_fetch_sub_relaxed atomic_fetch_sub_relaxed
+#define arch_atomic_add_return_relaxed arch_atomic_add_return_relaxed
+#define arch_atomic_sub_return_relaxed arch_atomic_sub_return_relaxed
+#define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add_relaxed
+#define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub_relaxed
-#define atomic_fetch_and_relaxed atomic_fetch_and_relaxed
-#define atomic_fetch_andnot_relaxed atomic_fetch_andnot_relaxed
-#define atomic_fetch_or_relaxed atomic_fetch_or_relaxed
-#define atomic_fetch_xor_relaxed atomic_fetch_xor_relaxed
+#define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and_relaxed
+#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed
+#define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or_relaxed
+#define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor_relaxed
-static inline int atomic_cmpxchg_relaxed(atomic_t *ptr, int old, int new)
+static inline int arch_atomic_cmpxchg_relaxed(atomic_t *ptr, int old, int new)
{
int oldval;
unsigned long res;
@@ -128,9 +123,9 @@ static inline int atomic_cmpxchg_relaxed(atomic_t *ptr, int old, int new)
return oldval;
}
-#define atomic_cmpxchg_relaxed atomic_cmpxchg_relaxed
+#define arch_atomic_cmpxchg_relaxed arch_atomic_cmpxchg_relaxed
-static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
+static inline int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
{
int oldval, newval;
unsigned long tmp;
@@ -156,7 +151,7 @@ static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
return oldval;
}
-#define atomic_fetch_add_unless atomic_fetch_add_unless
+#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
#else /* ARM_ARCH_6 */
@@ -165,7 +160,7 @@ static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
#endif
#define ATOMIC_OP(op, c_op, asm_op) \
-static inline void atomic_##op(int i, atomic_t *v) \
+static inline void arch_atomic_##op(int i, atomic_t *v) \
{ \
unsigned long flags; \
\
@@ -175,7 +170,7 @@ static inline void atomic_##op(int i, atomic_t *v) \
} \
#define ATOMIC_OP_RETURN(op, c_op, asm_op) \
-static inline int atomic_##op##_return(int i, atomic_t *v) \
+static inline int arch_atomic_##op##_return(int i, atomic_t *v) \
{ \
unsigned long flags; \
int val; \
@@ -189,7 +184,7 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
}
#define ATOMIC_FETCH_OP(op, c_op, asm_op) \
-static inline int atomic_fetch_##op(int i, atomic_t *v) \
+static inline int arch_atomic_fetch_##op(int i, atomic_t *v) \
{ \
unsigned long flags; \
int val; \
@@ -202,7 +197,17 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \
return val; \
}
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+#define arch_atomic_add_return arch_atomic_add_return
+#define arch_atomic_sub_return arch_atomic_sub_return
+#define arch_atomic_fetch_add arch_atomic_fetch_add
+#define arch_atomic_fetch_sub arch_atomic_fetch_sub
+
+#define arch_atomic_fetch_and arch_atomic_fetch_and
+#define arch_atomic_fetch_andnot arch_atomic_fetch_andnot
+#define arch_atomic_fetch_or arch_atomic_fetch_or
+#define arch_atomic_fetch_xor arch_atomic_fetch_xor
+
+static inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
{
int ret;
unsigned long flags;
@@ -215,8 +220,7 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
return ret;
}
-
-#define atomic_fetch_andnot atomic_fetch_andnot
+#define arch_atomic_cmpxchg arch_atomic_cmpxchg
#endif /* __LINUX_ARM_ARCH__ */
@@ -228,7 +232,7 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
ATOMIC_OPS(add, +=, add)
ATOMIC_OPS(sub, -=, sub)
-#define atomic_andnot atomic_andnot
+#define arch_atomic_andnot arch_atomic_andnot
#undef ATOMIC_OPS
#define ATOMIC_OPS(op, c_op, asm_op) \
@@ -245,19 +249,17 @@ ATOMIC_OPS(xor, ^=, eor)
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-
#ifndef CONFIG_GENERIC_ATOMIC64
typedef struct {
- long long counter;
+ s64 counter;
} atomic64_t;
#define ATOMIC64_INIT(i) { (i) }
#ifdef CONFIG_ARM_LPAE
-static inline long long atomic64_read(const atomic64_t *v)
+static inline s64 arch_atomic64_read(const atomic64_t *v)
{
- long long result;
+ s64 result;
__asm__ __volatile__("@ atomic64_read\n"
" ldrd %0, %H0, [%1]"
@@ -268,7 +270,7 @@ static inline long long atomic64_read(const atomic64_t *v)
return result;
}
-static inline void atomic64_set(atomic64_t *v, long long i)
+static inline void arch_atomic64_set(atomic64_t *v, s64 i)
{
__asm__ __volatile__("@ atomic64_set\n"
" strd %2, %H2, [%1]"
@@ -277,9 +279,9 @@ static inline void atomic64_set(atomic64_t *v, long long i)
);
}
#else
-static inline long long atomic64_read(const atomic64_t *v)
+static inline s64 arch_atomic64_read(const atomic64_t *v)
{
- long long result;
+ s64 result;
__asm__ __volatile__("@ atomic64_read\n"
" ldrexd %0, %H0, [%1]"
@@ -290,9 +292,9 @@ static inline long long atomic64_read(const atomic64_t *v)
return result;
}
-static inline void atomic64_set(atomic64_t *v, long long i)
+static inline void arch_atomic64_set(atomic64_t *v, s64 i)
{
- long long tmp;
+ s64 tmp;
prefetchw(&v->counter);
__asm__ __volatile__("@ atomic64_set\n"
@@ -307,9 +309,9 @@ static inline void atomic64_set(atomic64_t *v, long long i)
#endif
#define ATOMIC64_OP(op, op1, op2) \
-static inline void atomic64_##op(long long i, atomic64_t *v) \
+static inline void arch_atomic64_##op(s64 i, atomic64_t *v) \
{ \
- long long result; \
+ s64 result; \
unsigned long tmp; \
\
prefetchw(&v->counter); \
@@ -326,10 +328,10 @@ static inline void atomic64_##op(long long i, atomic64_t *v) \
} \
#define ATOMIC64_OP_RETURN(op, op1, op2) \
-static inline long long \
-atomic64_##op##_return_relaxed(long long i, atomic64_t *v) \
+static inline s64 \
+arch_atomic64_##op##_return_relaxed(s64 i, atomic64_t *v) \
{ \
- long long result; \
+ s64 result; \
unsigned long tmp; \
\
prefetchw(&v->counter); \
@@ -349,10 +351,10 @@ atomic64_##op##_return_relaxed(long long i, atomic64_t *v) \
}
#define ATOMIC64_FETCH_OP(op, op1, op2) \
-static inline long long \
-atomic64_fetch_##op##_relaxed(long long i, atomic64_t *v) \
+static inline s64 \
+arch_atomic64_fetch_##op##_relaxed(s64 i, atomic64_t *v) \
{ \
- long long result, val; \
+ s64 result, val; \
unsigned long tmp; \
\
prefetchw(&v->counter); \
@@ -379,37 +381,36 @@ atomic64_fetch_##op##_relaxed(long long i, atomic64_t *v) \
ATOMIC64_OPS(add, adds, adc)
ATOMIC64_OPS(sub, subs, sbc)
-#define atomic64_add_return_relaxed atomic64_add_return_relaxed
-#define atomic64_sub_return_relaxed atomic64_sub_return_relaxed
-#define atomic64_fetch_add_relaxed atomic64_fetch_add_relaxed
-#define atomic64_fetch_sub_relaxed atomic64_fetch_sub_relaxed
+#define arch_atomic64_add_return_relaxed arch_atomic64_add_return_relaxed
+#define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return_relaxed
+#define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add_relaxed
+#define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub_relaxed
#undef ATOMIC64_OPS
#define ATOMIC64_OPS(op, op1, op2) \
ATOMIC64_OP(op, op1, op2) \
ATOMIC64_FETCH_OP(op, op1, op2)
-#define atomic64_andnot atomic64_andnot
+#define arch_atomic64_andnot arch_atomic64_andnot
ATOMIC64_OPS(and, and, and)
ATOMIC64_OPS(andnot, bic, bic)
ATOMIC64_OPS(or, orr, orr)
ATOMIC64_OPS(xor, eor, eor)
-#define atomic64_fetch_and_relaxed atomic64_fetch_and_relaxed
-#define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot_relaxed
-#define atomic64_fetch_or_relaxed atomic64_fetch_or_relaxed
-#define atomic64_fetch_xor_relaxed atomic64_fetch_xor_relaxed
+#define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and_relaxed
+#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed
+#define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or_relaxed
+#define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor_relaxed
#undef ATOMIC64_OPS
#undef ATOMIC64_FETCH_OP
#undef ATOMIC64_OP_RETURN
#undef ATOMIC64_OP
-static inline long long
-atomic64_cmpxchg_relaxed(atomic64_t *ptr, long long old, long long new)
+static inline s64 arch_atomic64_cmpxchg_relaxed(atomic64_t *ptr, s64 old, s64 new)
{
- long long oldval;
+ s64 oldval;
unsigned long res;
prefetchw(&ptr->counter);
@@ -428,11 +429,11 @@ atomic64_cmpxchg_relaxed(atomic64_t *ptr, long long old, long long new)
return oldval;
}
-#define atomic64_cmpxchg_relaxed atomic64_cmpxchg_relaxed
+#define arch_atomic64_cmpxchg_relaxed arch_atomic64_cmpxchg_relaxed
-static inline long long atomic64_xchg_relaxed(atomic64_t *ptr, long long new)
+static inline s64 arch_atomic64_xchg_relaxed(atomic64_t *ptr, s64 new)
{
- long long result;
+ s64 result;
unsigned long tmp;
prefetchw(&ptr->counter);
@@ -448,11 +449,11 @@ static inline long long atomic64_xchg_relaxed(atomic64_t *ptr, long long new)
return result;
}
-#define atomic64_xchg_relaxed atomic64_xchg_relaxed
+#define arch_atomic64_xchg_relaxed arch_atomic64_xchg_relaxed
-static inline long long atomic64_dec_if_positive(atomic64_t *v)
+static inline s64 arch_atomic64_dec_if_positive(atomic64_t *v)
{
- long long result;
+ s64 result;
unsigned long tmp;
smp_mb();
@@ -476,12 +477,11 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
return result;
}
-#define atomic64_dec_if_positive atomic64_dec_if_positive
+#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
-static inline long long atomic64_fetch_add_unless(atomic64_t *v, long long a,
- long long u)
+static inline s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
{
- long long oldval, newval;
+ s64 oldval, newval;
unsigned long tmp;
smp_mb();
@@ -507,7 +507,7 @@ static inline long long atomic64_fetch_add_unless(atomic64_t *v, long long a,
return oldval;
}
-#define atomic64_fetch_add_unless atomic64_fetch_add_unless
+#define arch_atomic64_fetch_add_unless arch_atomic64_fetch_add_unless
#endif /* !CONFIG_GENERIC_ATOMIC64 */
#endif
generated by cgit (git 2.34.1) at 2025-12-24 21:41:44 +0000