diff options
Diffstat (limited to 'boost/atomic/detail/extra_ops_gcc_ppc.hpp')
-rw-r--r-- | boost/atomic/detail/extra_ops_gcc_ppc.hpp | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/boost/atomic/detail/extra_ops_gcc_ppc.hpp b/boost/atomic/detail/extra_ops_gcc_ppc.hpp new file mode 100644 index 0000000000..cc32e4960b --- /dev/null +++ b/boost/atomic/detail/extra_ops_gcc_ppc.hpp @@ -0,0 +1,274 @@ +/* + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + * + * Copyright (c) 2017 Andrey Semashev + */ +/*! + * \file atomic/detail/extra_ops_gcc_ppc.hpp + * + * This header contains implementation of the extra atomic operations for PowerPC. + */ + +#ifndef BOOST_ATOMIC_DETAIL_EXTRA_OPS_GCC_PPC_HPP_INCLUDED_ +#define BOOST_ATOMIC_DETAIL_EXTRA_OPS_GCC_PPC_HPP_INCLUDED_ + +#include <cstddef> +#include <boost/memory_order.hpp> +#include <boost/atomic/detail/config.hpp> +#include <boost/atomic/detail/storage_type.hpp> +#include <boost/atomic/detail/extra_operations_fwd.hpp> +#include <boost/atomic/detail/extra_ops_generic.hpp> +#include <boost/atomic/detail/ops_gcc_ppc_common.hpp> +#include <boost/atomic/capabilities.hpp> + +#ifdef BOOST_HAS_PRAGMA_ONCE +#pragma once +#endif + +namespace boost { +namespace atomics { +namespace detail { + +#if defined(BOOST_ATOMIC_DETAIL_PPC_HAS_LBARX_STBCX) + +template< typename Base, bool Signed > +struct extra_operations< Base, 1u, Signed > : + public generic_extra_operations< Base, 1u, Signed > +{ + typedef generic_extra_operations< Base, 1u, Signed > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE storage_type fetch_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "lbarx %0,%y2\n\t" + "neg %1,%0\n\t" + "stbcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE storage_type fetch_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "lbarx %0,%y2\n\t" + "nor %1,%0,%0\n\t" + "stbcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE void opaque_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_negate(storage, order); + } + + static BOOST_FORCEINLINE void opaque_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_complement(storage, order); + } +}; + +#endif // defined(BOOST_ATOMIC_DETAIL_PPC_HAS_LBARX_STBCX) + +#if defined(BOOST_ATOMIC_DETAIL_PPC_HAS_LHARX_STHCX) + +template< typename Base, bool Signed > +struct extra_operations< Base, 2u, Signed > : + public generic_extra_operations< Base, 2u, Signed > +{ + typedef generic_extra_operations< Base, 2u, Signed > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE storage_type fetch_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "lharx %0,%y2\n\t" + "neg %1,%0\n\t" + "sthcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE storage_type fetch_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "lharx %0,%y2\n\t" + "nor %1,%0,%0\n\t" + "sthcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE void opaque_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_negate(storage, order); + } + + static BOOST_FORCEINLINE void opaque_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_complement(storage, order); + } +}; + +#endif // defined(BOOST_ATOMIC_DETAIL_PPC_HAS_LHARX_STHCX) + +template< typename Base, bool Signed > +struct extra_operations< Base, 4u, Signed > : + public generic_extra_operations< Base, 4u, Signed > +{ + typedef generic_extra_operations< Base, 4u, Signed > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE storage_type fetch_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "lwarx %0,%y2\n\t" + "neg %1,%0\n\t" + "stwcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE storage_type fetch_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "lwarx %0,%y2\n\t" + "nor %1,%0,%0\n\t" + "stwcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE void opaque_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_negate(storage, order); + } + + static BOOST_FORCEINLINE void opaque_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_complement(storage, order); + } +}; + +#if defined(BOOST_ATOMIC_DETAIL_PPC_HAS_LDARX_STDCX) + +template< typename Base, bool Signed > +struct extra_operations< Base, 8u, Signed > : + public generic_extra_operations< Base, 8u, Signed > +{ + typedef generic_extra_operations< Base, 8u, Signed > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE storage_type fetch_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "ldarx %0,%y2\n\t" + "neg %1,%0\n\t" + "stdcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE storage_type fetch_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + gcc_ppc_operations_base::fence_before(order); + storage_type original, tmp; + __asm__ __volatile__ + ( + "1:\n\t" + "ldarx %0,%y2\n\t" + "nor %1,%0,%0\n\t" + "stdcx. %1,%y2\n\t" + "bne- 1b\n\t" + : "=&b" (original), "=&b" (tmp), "+Z" (storage) + : + : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC + ); + gcc_ppc_operations_base::fence_after(order); + return original; + } + + static BOOST_FORCEINLINE void opaque_negate(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_negate(storage, order); + } + + static BOOST_FORCEINLINE void opaque_complement(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + fetch_complement(storage, order); + } +}; + +#endif // defined(BOOST_ATOMIC_DETAIL_PPC_HAS_LDARX_STDCX) + +} // namespace detail +} // namespace atomics +} // namespace boost + +#endif // BOOST_ATOMIC_DETAIL_EXTRA_OPS_GCC_ARM_PPC_INCLUDED_ |