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Diffstat (limited to 'sysdeps/powerpc/atomic-machine.h')
| -rw-r--r-- | sysdeps/powerpc/atomic-machine.h | 339 |
1 files changed, 0 insertions, 339 deletions
diff --git a/sysdeps/powerpc/atomic-machine.h b/sysdeps/powerpc/atomic-machine.h deleted file mode 100644 index 0a58203a10..0000000000 --- a/sysdeps/powerpc/atomic-machine.h +++ /dev/null @@ -1,339 +0,0 @@ -/* Atomic operations. PowerPC Common version. - Copyright (C) 2003-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -/* - * Never include sysdeps/powerpc/atomic-machine.h directly. - * Alway use include/atomic.h which will include either - * sysdeps/powerpc/powerpc32/atomic-machine.h - * or - * sysdeps/powerpc/powerpc64/atomic-machine.h - * as appropriate and which in turn include this file. - */ - -#include <stdint.h> - -typedef int32_t atomic32_t; -typedef uint32_t uatomic32_t; -typedef int_fast32_t atomic_fast32_t; -typedef uint_fast32_t uatomic_fast32_t; - -typedef int64_t atomic64_t; -typedef uint64_t uatomic64_t; -typedef int_fast64_t atomic_fast64_t; -typedef uint_fast64_t uatomic_fast64_t; - -typedef intptr_t atomicptr_t; -typedef uintptr_t uatomicptr_t; -typedef intmax_t atomic_max_t; -typedef uintmax_t uatomic_max_t; - -/* - * Powerpc does not have byte and halfword forms of load and reserve and - * store conditional. So for powerpc we stub out the 8- and 16-bit forms. - */ -#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \ - (abort (), 0) - -#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \ - (abort (), 0) - -#ifdef UP -# define __ARCH_ACQ_INSTR "" -# define __ARCH_REL_INSTR "" -#else -# define __ARCH_ACQ_INSTR "isync" -# ifndef __ARCH_REL_INSTR -# define __ARCH_REL_INSTR "sync" -# endif -#endif - -#ifndef MUTEX_HINT_ACQ -# define MUTEX_HINT_ACQ -#endif -#ifndef MUTEX_HINT_REL -# define MUTEX_HINT_REL -#endif - -#define atomic_full_barrier() __asm ("sync" ::: "memory") - -#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \ - ({ \ - __typeof (*(mem)) __tmp; \ - __typeof (mem) __memp = (mem); \ - __asm __volatile ( \ - "1: lwarx %0,0,%1" MUTEX_HINT_ACQ "\n" \ - " cmpw %0,%2\n" \ - " bne 2f\n" \ - " stwcx. %3,0,%1\n" \ - " bne- 1b\n" \ - "2: " __ARCH_ACQ_INSTR \ - : "=&r" (__tmp) \ - : "b" (__memp), "r" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp; \ - }) - -#define __arch_compare_and_exchange_val_32_rel(mem, newval, oldval) \ - ({ \ - __typeof (*(mem)) __tmp; \ - __typeof (mem) __memp = (mem); \ - __asm __volatile (__ARCH_REL_INSTR "\n" \ - "1: lwarx %0,0,%1" MUTEX_HINT_REL "\n" \ - " cmpw %0,%2\n" \ - " bne 2f\n" \ - " stwcx. %3,0,%1\n" \ - " bne- 1b\n" \ - "2: " \ - : "=&r" (__tmp) \ - : "b" (__memp), "r" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp; \ - }) - -#define __arch_atomic_exchange_32_acq(mem, value) \ - ({ \ - __typeof (*mem) __val; \ - __asm __volatile ( \ - "1: lwarx %0,0,%2" MUTEX_HINT_ACQ "\n" \ - " stwcx. %3,0,%2\n" \ - " bne- 1b\n" \ - " " __ARCH_ACQ_INSTR \ - : "=&r" (__val), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define __arch_atomic_exchange_32_rel(mem, value) \ - ({ \ - __typeof (*mem) __val; \ - __asm __volatile (__ARCH_REL_INSTR "\n" \ - "1: lwarx %0,0,%2" MUTEX_HINT_REL "\n" \ - " stwcx. %3,0,%2\n" \ - " bne- 1b" \ - : "=&r" (__val), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define __arch_atomic_exchange_and_add_32(mem, value) \ - ({ \ - __typeof (*mem) __val, __tmp; \ - __asm __volatile ("1: lwarx %0,0,%3\n" \ - " add %1,%0,%4\n" \ - " stwcx. %1,0,%3\n" \ - " bne- 1b" \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define __arch_atomic_exchange_and_add_32_acq(mem, value) \ - ({ \ - __typeof (*mem) __val, __tmp; \ - __asm __volatile ("1: lwarx %0,0,%3" MUTEX_HINT_ACQ "\n" \ - " add %1,%0,%4\n" \ - " stwcx. %1,0,%3\n" \ - " bne- 1b\n" \ - __ARCH_ACQ_INSTR \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define __arch_atomic_exchange_and_add_32_rel(mem, value) \ - ({ \ - __typeof (*mem) __val, __tmp; \ - __asm __volatile (__ARCH_REL_INSTR "\n" \ - "1: lwarx %0,0,%3" MUTEX_HINT_REL "\n" \ - " add %1,%0,%4\n" \ - " stwcx. %1,0,%3\n" \ - " bne- 1b" \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define __arch_atomic_increment_val_32(mem) \ - ({ \ - __typeof (*(mem)) __val; \ - __asm __volatile ("1: lwarx %0,0,%2\n" \ - " addi %0,%0,1\n" \ - " stwcx. %0,0,%2\n" \ - " bne- 1b" \ - : "=&b" (__val), "=m" (*mem) \ - : "b" (mem), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define __arch_atomic_decrement_val_32(mem) \ - ({ \ - __typeof (*(mem)) __val; \ - __asm __volatile ("1: lwarx %0,0,%2\n" \ - " subi %0,%0,1\n" \ - " stwcx. %0,0,%2\n" \ - " bne- 1b" \ - : "=&b" (__val), "=m" (*mem) \ - : "b" (mem), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define __arch_atomic_decrement_if_positive_32(mem) \ - ({ int __val, __tmp; \ - __asm __volatile ("1: lwarx %0,0,%3\n" \ - " cmpwi 0,%0,0\n" \ - " addi %1,%0,-1\n" \ - " ble 2f\n" \ - " stwcx. %1,0,%3\n" \ - " bne- 1b\n" \ - "2: " __ARCH_ACQ_INSTR \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*mem) \ - : "b" (mem), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_compare_and_exchange_val_32_acq(mem, newval, oldval); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_compare_and_exchange_val_64_acq(mem, newval, oldval); \ - else \ - abort (); \ - __result; \ - }) - -#define atomic_compare_and_exchange_val_rel(mem, newval, oldval) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_compare_and_exchange_val_32_rel(mem, newval, oldval); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_compare_and_exchange_val_64_rel(mem, newval, oldval); \ - else \ - abort (); \ - __result; \ - }) - -#define atomic_exchange_acq(mem, value) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_atomic_exchange_32_acq (mem, value); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_atomic_exchange_64_acq (mem, value); \ - else \ - abort (); \ - __result; \ - }) - -#define atomic_exchange_rel(mem, value) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_atomic_exchange_32_rel (mem, value); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_atomic_exchange_64_rel (mem, value); \ - else \ - abort (); \ - __result; \ - }) - -#define atomic_exchange_and_add(mem, value) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_atomic_exchange_and_add_32 (mem, value); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_atomic_exchange_and_add_64 (mem, value); \ - else \ - abort (); \ - __result; \ - }) -#define atomic_exchange_and_add_acq(mem, value) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_atomic_exchange_and_add_32_acq (mem, value); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_atomic_exchange_and_add_64_acq (mem, value); \ - else \ - abort (); \ - __result; \ - }) -#define atomic_exchange_and_add_rel(mem, value) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_atomic_exchange_and_add_32_rel (mem, value); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_atomic_exchange_and_add_64_rel (mem, value); \ - else \ - abort (); \ - __result; \ - }) - -#define atomic_increment_val(mem) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*(mem)) == 4) \ - __result = __arch_atomic_increment_val_32 (mem); \ - else if (sizeof (*(mem)) == 8) \ - __result = __arch_atomic_increment_val_64 (mem); \ - else \ - abort (); \ - __result; \ - }) - -#define atomic_increment(mem) ({ atomic_increment_val (mem); (void) 0; }) - -#define atomic_decrement_val(mem) \ - ({ \ - __typeof (*(mem)) __result; \ - if (sizeof (*(mem)) == 4) \ - __result = __arch_atomic_decrement_val_32 (mem); \ - else if (sizeof (*(mem)) == 8) \ - __result = __arch_atomic_decrement_val_64 (mem); \ - else \ - abort (); \ - __result; \ - }) - -#define atomic_decrement(mem) ({ atomic_decrement_val (mem); (void) 0; }) - - -/* Decrement *MEM if it is > 0, and return the old value. */ -#define atomic_decrement_if_positive(mem) \ - ({ __typeof (*(mem)) __result; \ - if (sizeof (*mem) == 4) \ - __result = __arch_atomic_decrement_if_positive_32 (mem); \ - else if (sizeof (*mem) == 8) \ - __result = __arch_atomic_decrement_if_positive_64 (mem); \ - else \ - abort (); \ - __result; \ - }) |