summaryrefslogtreecommitdiff
path: root/arch/m68k
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/Kconfig1
-rw-r--r--arch/m68k/include/asm/atomic.h60
-rw-r--r--arch/m68k/include/asm/cmpxchg.h10
-rw-r--r--arch/m68k/include/asm/mmu_context.h2
4 files changed, 37 insertions, 36 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 372e4e69c43a..d1d91ac47f51 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -3,6 +3,7 @@ config M68K
bool
default y
select ARCH_32BIT_OFF_T
+ select ARCH_ATOMIC
select ARCH_HAS_BINFMT_FLAT
select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index 756c5cc58f94..8637bf8a2f65 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -16,8 +16,8 @@
* We do not have SMP m68k systems, so we don't have to deal with that.
*/
-#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))
/*
* The ColdFire parts cannot do some immediate to memory operations,
@@ -30,7 +30,7 @@
#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) \
{ \
__asm__ __volatile__(#asm_op "l %1,%0" : "+m" (*v) : ASM_DI (i));\
} \
@@ -38,7 +38,7 @@ static inline void atomic_##op(int i, atomic_t *v) \
#ifdef CONFIG_RMW_INSNS
#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) \
{ \
int t, tmp; \
\
@@ -48,12 +48,12 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
" casl %2,%1,%0\n" \
" jne 1b" \
: "+m" (*v), "=&d" (t), "=&d" (tmp) \
- : "g" (i), "2" (atomic_read(v))); \
+ : "g" (i), "2" (arch_atomic_read(v))); \
return t; \
}
#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) \
{ \
int t, tmp; \
\
@@ -63,14 +63,14 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \
" casl %2,%1,%0\n" \
" jne 1b" \
: "+m" (*v), "=&d" (t), "=&d" (tmp) \
- : "g" (i), "2" (atomic_read(v))); \
+ : "g" (i), "2" (arch_atomic_read(v))); \
return tmp; \
}
#else
#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 t; \
@@ -83,7 +83,7 @@ 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 t; \
@@ -120,27 +120,27 @@ ATOMIC_OPS(xor, ^=, eor)
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
-static inline void atomic_inc(atomic_t *v)
+static inline void arch_atomic_inc(atomic_t *v)
{
__asm__ __volatile__("addql #1,%0" : "+m" (*v));
}
-#define atomic_inc atomic_inc
+#define arch_atomic_inc arch_atomic_inc
-static inline void atomic_dec(atomic_t *v)
+static inline void arch_atomic_dec(atomic_t *v)
{
__asm__ __volatile__("subql #1,%0" : "+m" (*v));
}
-#define atomic_dec atomic_dec
+#define arch_atomic_dec arch_atomic_dec
-static inline int atomic_dec_and_test(atomic_t *v)
+static inline int arch_atomic_dec_and_test(atomic_t *v)
{
char c;
__asm__ __volatile__("subql #1,%1; seq %0" : "=d" (c), "+m" (*v));
return c != 0;
}
-#define atomic_dec_and_test atomic_dec_and_test
+#define arch_atomic_dec_and_test arch_atomic_dec_and_test
-static inline int atomic_dec_and_test_lt(atomic_t *v)
+static inline int arch_atomic_dec_and_test_lt(atomic_t *v)
{
char c;
__asm__ __volatile__(
@@ -150,49 +150,49 @@ static inline int atomic_dec_and_test_lt(atomic_t *v)
return c != 0;
}
-static inline int atomic_inc_and_test(atomic_t *v)
+static inline int arch_atomic_inc_and_test(atomic_t *v)
{
char c;
__asm__ __volatile__("addql #1,%1; seq %0" : "=d" (c), "+m" (*v));
return c != 0;
}
-#define atomic_inc_and_test atomic_inc_and_test
+#define arch_atomic_inc_and_test arch_atomic_inc_and_test
#ifdef CONFIG_RMW_INSNS
-#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+#define arch_atomic_cmpxchg(v, o, n) ((int)arch_cmpxchg(&((v)->counter), (o), (n)))
+#define arch_atomic_xchg(v, new) (arch_xchg(&((v)->counter), new))
#else /* !CONFIG_RMW_INSNS */
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+static inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
{
unsigned long flags;
int prev;
local_irq_save(flags);
- prev = atomic_read(v);
+ prev = arch_atomic_read(v);
if (prev == old)
- atomic_set(v, new);
+ arch_atomic_set(v, new);
local_irq_restore(flags);
return prev;
}
-static inline int atomic_xchg(atomic_t *v, int new)
+static inline int arch_atomic_xchg(atomic_t *v, int new)
{
unsigned long flags;
int prev;
local_irq_save(flags);
- prev = atomic_read(v);
- atomic_set(v, new);
+ prev = arch_atomic_read(v);
+ arch_atomic_set(v, new);
local_irq_restore(flags);
return prev;
}
#endif /* !CONFIG_RMW_INSNS */
-static inline int atomic_sub_and_test(int i, atomic_t *v)
+static inline int arch_atomic_sub_and_test(int i, atomic_t *v)
{
char c;
__asm__ __volatile__("subl %2,%1; seq %0"
@@ -200,9 +200,9 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
: ASM_DI (i));
return c != 0;
}
-#define atomic_sub_and_test atomic_sub_and_test
+#define arch_atomic_sub_and_test arch_atomic_sub_and_test
-static inline int atomic_add_negative(int i, atomic_t *v)
+static inline int arch_atomic_add_negative(int i, atomic_t *v)
{
char c;
__asm__ __volatile__("addl %2,%1; smi %0"
@@ -210,6 +210,6 @@ static inline int atomic_add_negative(int i, atomic_t *v)
: ASM_DI (i));
return c != 0;
}
-#define atomic_add_negative atomic_add_negative
+#define arch_atomic_add_negative arch_atomic_add_negative
#endif /* __ARCH_M68K_ATOMIC __ */
diff --git a/arch/m68k/include/asm/cmpxchg.h b/arch/m68k/include/asm/cmpxchg.h
index 7629c9c1ed5b..e8ca4b0ccefa 100644
--- a/arch/m68k/include/asm/cmpxchg.h
+++ b/arch/m68k/include/asm/cmpxchg.h
@@ -76,11 +76,11 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
}
#endif
-#define xchg(ptr,x) ({(__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)));})
+#define arch_xchg(ptr,x) ({(__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)));})
#include <asm-generic/cmpxchg-local.h>
-#define cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
+#define arch_cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
extern unsigned long __invalid_cmpxchg_size(volatile void *,
unsigned long, unsigned long, int);
@@ -118,14 +118,14 @@ static inline unsigned long __cmpxchg(volatile void *p, unsigned long old,
return old;
}
-#define cmpxchg(ptr, o, n) \
+#define arch_cmpxchg(ptr, o, n) \
({(__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
(unsigned long)(n), sizeof(*(ptr)));})
-#define cmpxchg_local(ptr, o, n) \
+#define arch_cmpxchg_local(ptr, o, n) \
({(__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
(unsigned long)(n), sizeof(*(ptr)));})
-#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n))
+#define arch_cmpxchg64(ptr, o, n) arch_cmpxchg64_local((ptr), (o), (n))
#else
diff --git a/arch/m68k/include/asm/mmu_context.h b/arch/m68k/include/asm/mmu_context.h
index a5d358855878..8ed6ac14d99f 100644
--- a/arch/m68k/include/asm/mmu_context.h
+++ b/arch/m68k/include/asm/mmu_context.h
@@ -31,7 +31,7 @@ static inline void get_mmu_context(struct mm_struct *mm)
if (mm->context != NO_CONTEXT)
return;
- while (atomic_dec_and_test_lt(&nr_free_contexts)) {
+ while (arch_atomic_dec_and_test_lt(&nr_free_contexts)) {
atomic_inc(&nr_free_contexts);
steal_context();
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 04:52:05 +0000