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Diffstat (limited to 'arch/ia64/include/asm/atomic.h')
-rw-r--r--arch/ia64/include/asm/atomic.h326
1 files changed, 0 insertions, 326 deletions
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
deleted file mode 100644
index 65d4bb2b6685..000000000000
--- a/arch/ia64/include/asm/atomic.h
+++ /dev/null
@@ -1,326 +0,0 @@
-#ifndef _ASM_IA64_ATOMIC_H
-#define _ASM_IA64_ATOMIC_H
-
-/*
- * Atomic operations that C can't guarantee us. Useful for
- * resource counting etc..
- *
- * NOTE: don't mess with the types below! The "unsigned long" and
- * "int" types were carefully placed so as to ensure proper operation
- * of the macros.
- *
- * Copyright (C) 1998, 1999, 2002-2003 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@hpl.hp.com>
- */
-#include <linux/types.h>
-
-#include <asm/intrinsics.h>
-#include <asm/barrier.h>
-
-
-#define ATOMIC_INIT(i) { (i) }
-#define ATOMIC64_INIT(i) { (i) }
-
-#define atomic_read(v) READ_ONCE((v)->counter)
-#define atomic64_read(v) READ_ONCE((v)->counter)
-
-#define atomic_set(v,i) WRITE_ONCE(((v)->counter), (i))
-#define atomic64_set(v,i) WRITE_ONCE(((v)->counter), (i))
-
-#define ATOMIC_OP(op, c_op) \
-static __inline__ int \
-ia64_atomic_##op (int i, atomic_t *v) \
-{ \
- __s32 old, new; \
- CMPXCHG_BUGCHECK_DECL \
- \
- do { \
- CMPXCHG_BUGCHECK(v); \
- old = atomic_read(v); \
- new = old c_op i; \
- } while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic_t)) != old); \
- return new; \
-}
-
-#define ATOMIC_FETCH_OP(op, c_op) \
-static __inline__ int \
-ia64_atomic_fetch_##op (int i, atomic_t *v) \
-{ \
- __s32 old, new; \
- CMPXCHG_BUGCHECK_DECL \
- \
- do { \
- CMPXCHG_BUGCHECK(v); \
- old = atomic_read(v); \
- new = old c_op i; \
- } while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic_t)) != old); \
- return old; \
-}
-
-#define ATOMIC_OPS(op, c_op) \
- ATOMIC_OP(op, c_op) \
- ATOMIC_FETCH_OP(op, c_op)
-
-ATOMIC_OPS(add, +)
-ATOMIC_OPS(sub, -)
-
-#define atomic_add_return(i,v) \
-({ \
- int __ia64_aar_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_aar_i == 1) || (__ia64_aar_i == 4) \
- || (__ia64_aar_i == 8) || (__ia64_aar_i == 16) \
- || (__ia64_aar_i == -1) || (__ia64_aar_i == -4) \
- || (__ia64_aar_i == -8) || (__ia64_aar_i == -16))) \
- ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \
- : ia64_atomic_add(__ia64_aar_i, v); \
-})
-
-#define atomic_sub_return(i,v) \
-({ \
- int __ia64_asr_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_asr_i == 1) || (__ia64_asr_i == 4) \
- || (__ia64_asr_i == 8) || (__ia64_asr_i == 16) \
- || (__ia64_asr_i == -1) || (__ia64_asr_i == -4) \
- || (__ia64_asr_i == -8) || (__ia64_asr_i == -16))) \
- ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \
- : ia64_atomic_sub(__ia64_asr_i, v); \
-})
-
-#define atomic_fetch_add(i,v) \
-({ \
- int __ia64_aar_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_aar_i == 1) || (__ia64_aar_i == 4) \
- || (__ia64_aar_i == 8) || (__ia64_aar_i == 16) \
- || (__ia64_aar_i == -1) || (__ia64_aar_i == -4) \
- || (__ia64_aar_i == -8) || (__ia64_aar_i == -16))) \
- ? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \
- : ia64_atomic_fetch_add(__ia64_aar_i, v); \
-})
-
-#define atomic_fetch_sub(i,v) \
-({ \
- int __ia64_asr_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_asr_i == 1) || (__ia64_asr_i == 4) \
- || (__ia64_asr_i == 8) || (__ia64_asr_i == 16) \
- || (__ia64_asr_i == -1) || (__ia64_asr_i == -4) \
- || (__ia64_asr_i == -8) || (__ia64_asr_i == -16))) \
- ? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq) \
- : ia64_atomic_fetch_sub(__ia64_asr_i, v); \
-})
-
-ATOMIC_FETCH_OP(and, &)
-ATOMIC_FETCH_OP(or, |)
-ATOMIC_FETCH_OP(xor, ^)
-
-#define atomic_and(i,v) (void)ia64_atomic_fetch_and(i,v)
-#define atomic_or(i,v) (void)ia64_atomic_fetch_or(i,v)
-#define atomic_xor(i,v) (void)ia64_atomic_fetch_xor(i,v)
-
-#define atomic_fetch_and(i,v) ia64_atomic_fetch_and(i,v)
-#define atomic_fetch_or(i,v) ia64_atomic_fetch_or(i,v)
-#define atomic_fetch_xor(i,v) ia64_atomic_fetch_xor(i,v)
-
-#undef ATOMIC_OPS
-#undef ATOMIC_FETCH_OP
-#undef ATOMIC_OP
-
-#define ATOMIC64_OP(op, c_op) \
-static __inline__ long \
-ia64_atomic64_##op (__s64 i, atomic64_t *v) \
-{ \
- __s64 old, new; \
- CMPXCHG_BUGCHECK_DECL \
- \
- do { \
- CMPXCHG_BUGCHECK(v); \
- old = atomic64_read(v); \
- new = old c_op i; \
- } while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic64_t)) != old); \
- return new; \
-}
-
-#define ATOMIC64_FETCH_OP(op, c_op) \
-static __inline__ long \
-ia64_atomic64_fetch_##op (__s64 i, atomic64_t *v) \
-{ \
- __s64 old, new; \
- CMPXCHG_BUGCHECK_DECL \
- \
- do { \
- CMPXCHG_BUGCHECK(v); \
- old = atomic64_read(v); \
- new = old c_op i; \
- } while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic64_t)) != old); \
- return old; \
-}
-
-#define ATOMIC64_OPS(op, c_op) \
- ATOMIC64_OP(op, c_op) \
- ATOMIC64_FETCH_OP(op, c_op)
-
-ATOMIC64_OPS(add, +)
-ATOMIC64_OPS(sub, -)
-
-#define atomic64_add_return(i,v) \
-({ \
- long __ia64_aar_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_aar_i == 1) || (__ia64_aar_i == 4) \
- || (__ia64_aar_i == 8) || (__ia64_aar_i == 16) \
- || (__ia64_aar_i == -1) || (__ia64_aar_i == -4) \
- || (__ia64_aar_i == -8) || (__ia64_aar_i == -16))) \
- ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \
- : ia64_atomic64_add(__ia64_aar_i, v); \
-})
-
-#define atomic64_sub_return(i,v) \
-({ \
- long __ia64_asr_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_asr_i == 1) || (__ia64_asr_i == 4) \
- || (__ia64_asr_i == 8) || (__ia64_asr_i == 16) \
- || (__ia64_asr_i == -1) || (__ia64_asr_i == -4) \
- || (__ia64_asr_i == -8) || (__ia64_asr_i == -16))) \
- ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \
- : ia64_atomic64_sub(__ia64_asr_i, v); \
-})
-
-#define atomic64_fetch_add(i,v) \
-({ \
- long __ia64_aar_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_aar_i == 1) || (__ia64_aar_i == 4) \
- || (__ia64_aar_i == 8) || (__ia64_aar_i == 16) \
- || (__ia64_aar_i == -1) || (__ia64_aar_i == -4) \
- || (__ia64_aar_i == -8) || (__ia64_aar_i == -16))) \
- ? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \
- : ia64_atomic64_fetch_add(__ia64_aar_i, v); \
-})
-
-#define atomic64_fetch_sub(i,v) \
-({ \
- long __ia64_asr_i = (i); \
- (__builtin_constant_p(i) \
- && ( (__ia64_asr_i == 1) || (__ia64_asr_i == 4) \
- || (__ia64_asr_i == 8) || (__ia64_asr_i == 16) \
- || (__ia64_asr_i == -1) || (__ia64_asr_i == -4) \
- || (__ia64_asr_i == -8) || (__ia64_asr_i == -16))) \
- ? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq) \
- : ia64_atomic64_fetch_sub(__ia64_asr_i, v); \
-})
-
-ATOMIC64_FETCH_OP(and, &)
-ATOMIC64_FETCH_OP(or, |)
-ATOMIC64_FETCH_OP(xor, ^)
-
-#define atomic64_and(i,v) (void)ia64_atomic64_fetch_and(i,v)
-#define atomic64_or(i,v) (void)ia64_atomic64_fetch_or(i,v)
-#define atomic64_xor(i,v) (void)ia64_atomic64_fetch_xor(i,v)
-
-#define atomic64_fetch_and(i,v) ia64_atomic64_fetch_and(i,v)
-#define atomic64_fetch_or(i,v) ia64_atomic64_fetch_or(i,v)
-#define atomic64_fetch_xor(i,v) ia64_atomic64_fetch_xor(i,v)
-
-#undef ATOMIC64_OPS
-#undef ATOMIC64_FETCH_OP
-#undef ATOMIC64_OP
-
-#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(&((v)->counter), old, new))
-#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
-
-static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
-{
- int c, old;
- c = atomic_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c;
-}
-
-
-static __inline__ long atomic64_add_unless(atomic64_t *v, long a, long u)
-{
- long c, old;
- c = atomic64_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic64_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c != (u);
-}
-
-#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
-
-static __inline__ long atomic64_dec_if_positive(atomic64_t *v)
-{
- long c, old, dec;
- c = atomic64_read(v);
- for (;;) {
- dec = c - 1;
- if (unlikely(dec < 0))
- break;
- old = atomic64_cmpxchg((v), c, dec);
- if (likely(old == c))
- break;
- c = old;
- }
- return dec;
-}
-
-/*
- * Atomically add I to V and return TRUE if the resulting value is
- * negative.
- */
-static __inline__ int
-atomic_add_negative (int i, atomic_t *v)
-{
- return atomic_add_return(i, v) < 0;
-}
-
-static __inline__ long
-atomic64_add_negative (__s64 i, atomic64_t *v)
-{
- return atomic64_add_return(i, v) < 0;
-}
-
-#define atomic_dec_return(v) atomic_sub_return(1, (v))
-#define atomic_inc_return(v) atomic_add_return(1, (v))
-#define atomic64_dec_return(v) atomic64_sub_return(1, (v))
-#define atomic64_inc_return(v) atomic64_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)
-#define atomic64_sub_and_test(i,v) (atomic64_sub_return((i), (v)) == 0)
-#define atomic64_dec_and_test(v) (atomic64_sub_return(1, (v)) == 0)
-#define atomic64_inc_and_test(v) (atomic64_add_return(1, (v)) == 0)
-
-#define atomic_add(i,v) (void)atomic_add_return((i), (v))
-#define atomic_sub(i,v) (void)atomic_sub_return((i), (v))
-#define atomic_inc(v) atomic_add(1, (v))
-#define atomic_dec(v) atomic_sub(1, (v))
-
-#define atomic64_add(i,v) (void)atomic64_add_return((i), (v))
-#define atomic64_sub(i,v) (void)atomic64_sub_return((i), (v))
-#define atomic64_inc(v) atomic64_add(1, (v))
-#define atomic64_dec(v) atomic64_sub(1, (v))
-
-#endif /* _ASM_IA64_ATOMIC_H */
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