diff options
Diffstat (limited to 'sysdeps/sparc/sparc64')
| -rw-r--r-- | sysdeps/sparc/sparc64/Makefile | 9 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/atomic-machine.h | 129 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/cpu_relax.c | 38 |
3 files changed, 0 insertions, 176 deletions
diff --git a/sysdeps/sparc/sparc64/Makefile b/sysdeps/sparc/sparc64/Makefile index 7ed4c357bc..7e3b62a595 100644 --- a/sysdeps/sparc/sparc64/Makefile +++ b/sysdeps/sparc/sparc64/Makefile @@ -29,15 +29,6 @@ ASFLAGS-.os += -Wa,-Av9d ASFLAGS-.op += -Wa,-Av9d ASFLAGS-.oS += -Wa,-Av9d -# nscd uses atomic_spin_nop which in turn requires cpu_relax -ifeq ($(subdir),nscd) -routines += cpu_relax -endif - -ifeq ($(subdir),nptl) -libpthread-routines += cpu_relax -endif - ifeq ($(subdir),soft-fp) sparc64-quad-routines := qp_add qp_cmp qp_cmpe qp_div qp_dtoq qp_feq qp_fge \ qp_fgt qp_fle qp_flt qp_fne qp_itoq qp_mul qp_neg qp_qtod qp_qtoi \ diff --git a/sysdeps/sparc/sparc64/atomic-machine.h b/sysdeps/sparc/sparc64/atomic-machine.h deleted file mode 100644 index 4e1fc04eca..0000000000 --- a/sysdeps/sparc/sparc64/atomic-machine.h +++ /dev/null @@ -1,129 +0,0 @@ -/* Atomic operations. sparc64 version. - Copyright (C) 2003-2019 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.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 - <https://www.gnu.org/licenses/>. */ - -#include <stdint.h> - -typedef int8_t atomic8_t; -typedef uint8_t uatomic8_t; -typedef int_fast8_t atomic_fast8_t; -typedef uint_fast8_t uatomic_fast8_t; - -typedef int16_t atomic16_t; -typedef uint16_t uatomic16_t; -typedef int_fast16_t atomic_fast16_t; -typedef uint_fast16_t uatomic_fast16_t; - -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; - -#define __HAVE_64B_ATOMICS 1 -#define USE_ATOMIC_COMPILER_BUILTINS 0 - -/* XXX Is this actually correct? */ -#define ATOMIC_EXCHANGE_USES_CAS 1 - - -#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \ - (abort (), (__typeof (*mem)) 0) - -#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \ - (abort (), (__typeof (*mem)) 0) - -#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \ -({ \ - __typeof (*(mem)) __acev_tmp; \ - __typeof (mem) __acev_mem = (mem); \ - if (__builtin_constant_p (oldval) && (oldval) == 0) \ - __asm __volatile ("cas [%3], %%g0, %0" \ - : "=r" (__acev_tmp), "=m" (*__acev_mem) \ - : "m" (*__acev_mem), "r" (__acev_mem), \ - "0" (newval) : "memory"); \ - else \ - __asm __volatile ("cas [%4], %2, %0" \ - : "=r" (__acev_tmp), "=m" (*__acev_mem) \ - : "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem), \ - "0" (newval) : "memory"); \ - __acev_tmp; }) - -#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ -({ \ - __typeof (*(mem)) __acev_tmp; \ - __typeof (mem) __acev_mem = (mem); \ - if (__builtin_constant_p (oldval) && (oldval) == 0) \ - __asm __volatile ("casx [%3], %%g0, %0" \ - : "=r" (__acev_tmp), "=m" (*__acev_mem) \ - : "m" (*__acev_mem), "r" (__acev_mem), \ - "0" ((long) (newval)) : "memory"); \ - else \ - __asm __volatile ("casx [%4], %2, %0" \ - : "=r" (__acev_tmp), "=m" (*__acev_mem) \ - : "r" ((long) (oldval)), "m" (*__acev_mem), \ - "r" (__acev_mem), "0" ((long) (newval)) : "memory"); \ - __acev_tmp; }) - -#define atomic_exchange_acq(mem, newvalue) \ - ({ __typeof (*(mem)) __oldval, __val; \ - __typeof (mem) __memp = (mem); \ - __typeof (*(mem)) __value = (newvalue); \ - \ - if (sizeof (*(mem)) == 4) \ - __asm ("swap %0, %1" \ - : "=m" (*__memp), "=r" (__oldval) \ - : "m" (*__memp), "1" (__value) : "memory"); \ - else \ - { \ - __val = *__memp; \ - do \ - { \ - __oldval = __val; \ - __val = atomic_compare_and_exchange_val_acq (__memp, __value, \ - __oldval); \ - } \ - while (__builtin_expect (__val != __oldval, 0)); \ - } \ - __oldval; }) - -#define atomic_compare_and_exchange_val_24_acq(mem, newval, oldval) \ - atomic_compare_and_exchange_val_acq (mem, newval, oldval) - -#define atomic_exchange_24_rel(mem, newval) \ - atomic_exchange_rel (mem, newval) - -#define atomic_full_barrier() \ - __asm __volatile ("membar #LoadLoad | #LoadStore" \ - " | #StoreLoad | #StoreStore" : : : "memory") -#define atomic_read_barrier() \ - __asm __volatile ("membar #LoadLoad | #LoadStore" : : : "memory") -#define atomic_write_barrier() \ - __asm __volatile ("membar #LoadStore | #StoreStore" : : : "memory") - -extern void __cpu_relax (void); -#define atomic_spin_nop() __cpu_relax () diff --git a/sysdeps/sparc/sparc64/cpu_relax.c b/sysdeps/sparc/sparc64/cpu_relax.c deleted file mode 100644 index b86afdec2c..0000000000 --- a/sysdeps/sparc/sparc64/cpu_relax.c +++ /dev/null @@ -1,38 +0,0 @@ -/* CPU strand yielding for busy loops. Linux/sparc64 version. - Copyright (C) 2017-2019 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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 - <https://www.gnu.org/licenses/>. */ - -#include <sparc-ifunc.h> - -static void -__cpu_relax_generic (void) -{ - asm volatile ("rd %ccr, %g0;" - "rd %ccr, %g0;" - "rd %ccr, %g0"); -} - -static void -__cpu_relax_pause (void) -{ - asm volatile ("wr %g0, 128, %asr27"); -} - -sparc_libc_ifunc (__cpu_relax, - hwcap & HWCAP_SPARC_PAUSE - ? __cpu_relax_pause - : __cpu_relax_generic) |