diff options
Diffstat (limited to 'platform/linux-generic/arch/aarch64/odp_llsc.h')
| -rw-r--r-- | platform/linux-generic/arch/aarch64/odp_llsc.h | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/platform/linux-generic/arch/aarch64/odp_llsc.h b/platform/linux-generic/arch/aarch64/odp_llsc.h deleted file mode 100644 index 498785bd4..000000000 --- a/platform/linux-generic/arch/aarch64/odp_llsc.h +++ /dev/null @@ -1,170 +0,0 @@ -/* Copyright (c) 2017, ARM Limited. All rights reserved. - * - * Copyright (c) 2017-2018, Linaro Limited - * All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#ifndef PLATFORM_LINUXGENERIC_ARCH_ARM_LLSC_H -#define PLATFORM_LINUXGENERIC_ARCH_ARM_LLSC_H - -#ifndef PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_CPU_H -#error This file should not be included directly, please include odp_cpu.h -#endif - -#include <odp_types_internal.h> - -static inline uint16_t ll8(uint8_t *var, int mm) -{ - uint16_t old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxrb %w0, [%1]" - : "=&r" (old) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxrb %w0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - else - _ODP_ABORT(); - return old; -} - -static inline uint32_t ll32(uint32_t *var, int mm) -{ - uint32_t old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxr %w0, [%1]" - : "=&r" (old) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxr %w0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - else - _ODP_ABORT(); - return old; -} - -/* Return 0 on success, 1 on failure */ -static inline uint32_t sc32(uint32_t *var, uint32_t neu, int mm) -{ - uint32_t ret; - - if (mm == __ATOMIC_RELEASE) - __asm__ volatile("stlxr %w0, %w1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("stxr %w0, %w1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : ); - else - _ODP_ABORT(); - return ret; -} - -static inline uint64_t ll(uint64_t *var, int mm) -{ - uint64_t old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxr %0, [%1]" - : "=&r" (old) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxr %0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - else - _ODP_ABORT(); - return old; -} - -#define ll64(a, b) ll((a), (b)) - -/* Return 0 on success, 1 on failure */ -static inline uint32_t sc(uint64_t *var, uint64_t neu, int mm) -{ - uint32_t ret; - - if (mm == __ATOMIC_RELEASE) - __asm__ volatile("stlxr %w0, %1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("stxr %w0, %1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : ); - else - _ODP_ABORT(); - return ret; -} - -#define sc64(a, b, c) sc((a), (b), (c)) - -union i128 { - _odp_u128_t i128; - int64_t i64[2]; -}; - -static inline _odp_u128_t lld(_odp_u128_t *var, int mm) -{ - union i128 old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxp %0, %1, [%2]" - : "=&r" (old.i64[0]), "=&r" (old.i64[1]) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxp %0, %1, [%2]" - : "=&r" (old.i64[0]), "=&r" (old.i64[1]) - : "r" (var) - : ); - else - _ODP_ABORT(); - return old.i128; -} - -/* Return 0 on success, 1 on failure */ -static inline uint32_t scd(_odp_u128_t *var, _odp_u128_t neu, int mm) -{ - uint32_t ret; - -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpedantic" - if (mm == __ATOMIC_RELEASE) - __asm__ volatile("stlxp %w0, %1, %2, [%3]" - : "=&r" (ret) - : "r" (((*(union i128 *)&neu)).i64[0]), - "r" (((*(union i128 *)&neu)).i64[1]), - "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("stxp %w0, %1, %2, [%3]" - : "=&r" (ret) - : "r" (((*(union i128 *)&neu)).i64[0]), - "r" (((*(union i128 *)&neu)).i64[1]), - "r" (var) - : ); - else - _ODP_ABORT(); -#pragma GCC diagnostic pop - return ret; -} - -#endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_LLSC_H */ |