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Diffstat (limited to 'arch/ia64/include/asm/atomic.h')
-rw-r--r-- | arch/ia64/include/asm/atomic.h | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h deleted file mode 100644 index 6540a628d2..0000000000 --- a/arch/ia64/include/asm/atomic.h +++ /dev/null @@ -1,216 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#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 ATOMIC64_INIT(i) { (i) } - -#define arch_atomic_read(v) READ_ONCE((v)->counter) -#define arch_atomic64_read(v) READ_ONCE((v)->counter) - -#define arch_atomic_set(v,i) WRITE_ONCE(((v)->counter), (i)) -#define arch_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 = arch_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 = arch_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, -) - -#ifdef __OPTIMIZE__ -#define __ia64_atomic_const(i) \ - static const int __ia64_atomic_p = __builtin_constant_p(i) ? \ - ((i) == 1 || (i) == 4 || (i) == 8 || (i) == 16 || \ - (i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0;\ - __ia64_atomic_p -#else -#define __ia64_atomic_const(i) 0 -#endif - -#define arch_atomic_add_return(i,v) \ -({ \ - int __ia64_aar_i = (i); \ - __ia64_atomic_const(i) \ - ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \ - : ia64_atomic_add(__ia64_aar_i, v); \ -}) - -#define arch_atomic_sub_return(i,v) \ -({ \ - int __ia64_asr_i = (i); \ - __ia64_atomic_const(i) \ - ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \ - : ia64_atomic_sub(__ia64_asr_i, v); \ -}) - -#define arch_atomic_fetch_add(i,v) \ -({ \ - int __ia64_aar_i = (i); \ - __ia64_atomic_const(i) \ - ? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \ - : ia64_atomic_fetch_add(__ia64_aar_i, v); \ -}) - -#define arch_atomic_fetch_sub(i,v) \ -({ \ - int __ia64_asr_i = (i); \ - __ia64_atomic_const(i) \ - ? 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 arch_atomic_and(i,v) (void)ia64_atomic_fetch_and(i,v) -#define arch_atomic_or(i,v) (void)ia64_atomic_fetch_or(i,v) -#define arch_atomic_xor(i,v) (void)ia64_atomic_fetch_xor(i,v) - -#define arch_atomic_fetch_and(i,v) ia64_atomic_fetch_and(i,v) -#define arch_atomic_fetch_or(i,v) ia64_atomic_fetch_or(i,v) -#define arch_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__ s64 \ -ia64_atomic64_##op (s64 i, atomic64_t *v) \ -{ \ - s64 old, new; \ - CMPXCHG_BUGCHECK_DECL \ - \ - do { \ - CMPXCHG_BUGCHECK(v); \ - old = arch_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__ s64 \ -ia64_atomic64_fetch_##op (s64 i, atomic64_t *v) \ -{ \ - s64 old, new; \ - CMPXCHG_BUGCHECK_DECL \ - \ - do { \ - CMPXCHG_BUGCHECK(v); \ - old = arch_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 arch_atomic64_add_return(i,v) \ -({ \ - s64 __ia64_aar_i = (i); \ - __ia64_atomic_const(i) \ - ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \ - : ia64_atomic64_add(__ia64_aar_i, v); \ -}) - -#define arch_atomic64_sub_return(i,v) \ -({ \ - s64 __ia64_asr_i = (i); \ - __ia64_atomic_const(i) \ - ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \ - : ia64_atomic64_sub(__ia64_asr_i, v); \ -}) - -#define arch_atomic64_fetch_add(i,v) \ -({ \ - s64 __ia64_aar_i = (i); \ - __ia64_atomic_const(i) \ - ? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \ - : ia64_atomic64_fetch_add(__ia64_aar_i, v); \ -}) - -#define arch_atomic64_fetch_sub(i,v) \ -({ \ - s64 __ia64_asr_i = (i); \ - __ia64_atomic_const(i) \ - ? 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 arch_atomic64_and(i,v) (void)ia64_atomic64_fetch_and(i,v) -#define arch_atomic64_or(i,v) (void)ia64_atomic64_fetch_or(i,v) -#define arch_atomic64_xor(i,v) (void)ia64_atomic64_fetch_xor(i,v) - -#define arch_atomic64_fetch_and(i,v) ia64_atomic64_fetch_and(i,v) -#define arch_atomic64_fetch_or(i,v) ia64_atomic64_fetch_or(i,v) -#define arch_atomic64_fetch_xor(i,v) ia64_atomic64_fetch_xor(i,v) - -#undef ATOMIC64_OPS -#undef ATOMIC64_FETCH_OP -#undef ATOMIC64_OP - -#define arch_atomic_add(i,v) (void)arch_atomic_add_return((i), (v)) -#define arch_atomic_sub(i,v) (void)arch_atomic_sub_return((i), (v)) - -#define arch_atomic64_add(i,v) (void)arch_atomic64_add_return((i), (v)) -#define arch_atomic64_sub(i,v) (void)arch_atomic64_sub_return((i), (v)) - -#endif /* _ASM_IA64_ATOMIC_H */ |