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// SPDX-FileCopyrightText: 2020 Michael Jeanson <mjeanson@efficios.com>
//
// SPDX-License-Identifier: LGPL-2.1-or-later
#ifndef _URCU_ARCH_H
#define _URCU_ARCH_H
/*
* Architecture detection using compiler defines.
*
* The following defines are used internally for architecture specific code.
*
* URCU_ARCH_X86 : All x86 variants 32 and 64 bits
* URCU_ARCH_I386 : Specific to the i386
* URCU_ARCH_AMD64 : All 64 bits x86 variants
* URCU_ARCH_K1OM : Specific to the Xeon Phi / MIC
*
* URCU_ARCH_PPC : All PowerPC variants 32 and 64 bits
* URCU_ARCH_PPC64 : Specific to 64 bits variants
*
* URCU_ARCH_S390 : All IBM s390 / s390x variants
*
* URCU_ARCH_SPARC64 : All Sun SPARC variants
*
* URCU_ARCH_ALPHA : All DEC Alpha variants
* URCU_ARCH_IA64 : All Intel Itanium variants
* URCU_ARCH_ARM : All ARM 32 bits variants
* URCU_ARCH_ARMV7 : All ARMv7 ISA variants
* URCU_ARCH_AARCH64 : All ARM 64 bits variants
* URCU_ARCH_MIPS : All MIPS variants
* URCU_ARCH_NIOS2 : All Intel / Altera NIOS II variants
* URCU_ARCH_TILE : All Tilera TILE variants
* URCU_ARCH_HPPA : All HP PA-RISC variants
* URCU_ARCH_M68K : All Motorola 68000 variants
* URCU_ARCH_RISCV : All RISC-V variants
* URCU_ARCH_LOONGARCH : All LoongArch variants
*/
#if (defined(__INTEL_OFFLOAD) || defined(__TARGET_ARCH_MIC) || defined(__MIC__))
#define URCU_ARCH_X86 1
#define URCU_ARCH_AMD64 1
#define URCU_ARCH_K1OM 1
#include <urcu/arch/x86.h>
#elif (defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64))
#define URCU_ARCH_X86 1
#define URCU_ARCH_AMD64 1
#include <urcu/arch/x86.h>
#elif (defined(__i386__) || defined(__i386))
#define URCU_ARCH_X86 1
/*
* URCU_ARCH_X86_NO_CAS enables a compat layer that will detect the presence of
* the cmpxchg instructions at runtime and provide a compat mode based on a
* pthread mutex when it isn't.
*
* __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 was introduced in GCC 4.3 and Clang 3.3,
* building with older compilers will result in the compat layer always being
* used on x86-32.
*/
#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
#define URCU_ARCH_X86_NO_CAS 1
/* For backwards compat */
#define URCU_ARCH_I386 1
#endif
#include <urcu/arch/x86.h>
#elif (defined(__powerpc64__) || defined(__ppc64__))
#define URCU_ARCH_PPC 1
#define URCU_ARCH_PPC64 1
#include <urcu/arch/ppc.h>
#elif (defined(__powerpc__) || defined(__powerpc) || defined(__ppc__))
#define URCU_ARCH_PPC 1
#include <urcu/arch/ppc.h>
#elif (defined(__s390__) || defined(__s390x__) || defined(__zarch__))
#define URCU_ARCH_S390 1
#include <urcu/arch/s390.h>
#elif (defined(__sparc__) || defined(__sparc) || defined(__sparc64__))
#define URCU_ARCH_SPARC64 1
#include <urcu/arch/sparc64.h>
#elif (defined(__alpha__) || defined(__alpha))
#define URCU_ARCH_ALPHA 1
#include <urcu/arch/alpha.h>
#elif (defined(__ia64__) || defined(__ia64))
#define URCU_ARCH_IA64 1
#include <urcu/arch/ia64.h>
#elif (defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7__))
#define URCU_ARCH_ARMV7 1
#define URCU_ARCH_ARM 1
#include <urcu/arch/arm.h>
#elif (defined(__arm__) || defined(__arm))
#define URCU_ARCH_ARM 1
#include <urcu/arch/arm.h>
#elif defined(__aarch64__)
#define URCU_ARCH_AARCH64 1
#include <urcu/arch/aarch64.h>
#elif (defined(__mips__) || defined(__mips))
#define URCU_ARCH_MIPS 1
#include <urcu/arch/mips.h>
#elif (defined(__nios2__) || defined(__nios2))
#define URCU_ARCH_NIOS2 1
#include <urcu/arch/nios2.h>
#elif defined(__tilegx__)
/*
* URCU has only been tested on the TileGx architecture. For other Tile*
* architectures, please run the tests first and report the results to the
* maintainer so that proper support can be added.
*/
#define URCU_ARCH_TILE 1
#include <urcu/arch/tile.h>
#elif (defined(__hppa__) || defined(__HPPA__) || defined(__hppa))
#define URCU_ARCH_HPPA 1
#include <urcu/arch/hppa.h>
#elif defined(__m68k__)
#define URCU_ARCH_M68K 1
#include <urcu/arch/m68k.h>
#elif defined(__riscv)
#define URCU_ARCH_RISCV 1
#include <urcu/arch/riscv.h>
#elif defined(__loongarch__)
#define URCU_ARCH_LOONGARCH 1
#include <urcu/arch/loongarch.h>
#elif defined(__sh__)
#define URCU_ARCH_SUPERH 1
#include <urcu/arch/superh.h>
#else
#error "Cannot build: unrecognized architecture, see <urcu/arch.h>."
#endif
#ifdef CONFIG_RCU_EMIT_LEGACY_MB
# define cmm_emit_legacy_smp_mb() cmm_smp_mb()
#else
# define cmm_emit_legacy_smp_mb() do { } while (0)
#endif
#endif /* _URCU_ARCH_H */
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