>From 1908602500df34619ec496c787546d5584d01221 Mon Sep 17 00:00:00 2001 From: Akira Yokosawa <akiyks@xxxxxxxxx> Date: Mon, 10 Jul 2017 23:46:32 +0900 Subject: [PATCH 2/2] CodeSamples: Add arm64 support Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx> --- CodeSamples/arch-arm64/Makefile.arch | 2 ++ CodeSamples/arch-arm64/arch-arm64.h | 61 ++++++++++++++++++++++++++++++++++++ CodeSamples/depends.mk | 5 +++ 3 files changed, 68 insertions(+) create mode 100644 CodeSamples/arch-arm64/Makefile.arch create mode 100644 CodeSamples/arch-arm64/arch-arm64.h diff --git a/CodeSamples/arch-arm64/Makefile.arch b/CodeSamples/arch-arm64/Makefile.arch new file mode 100644 index 0000000..b886373 --- /dev/null +++ b/CodeSamples/arch-arm64/Makefile.arch @@ -0,0 +1,2 @@ +# http://www.ibm.com/developerworks/wikis/display/hpccentral/Tuning+options+to+consider+with+gcc#Tuningoptionstoconsiderwithgcc-mcpuandmtune +GCC_ARGS=-g -O3 -Wall -mcpu=native -mtune=native diff --git a/CodeSamples/arch-arm64/arch-arm64.h b/CodeSamples/arch-arm64/arch-arm64.h new file mode 100644 index 0000000..354f1f2 --- /dev/null +++ b/CodeSamples/arch-arm64/arch-arm64.h @@ -0,0 +1,61 @@ +/* + * arch-arm64.h: Expose ARMv8_64 atomic instructions. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; but version 2 of the License only due + * to code included from the Linux kernel. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, you can access it online at + * http://www.gnu.org/licenses/gpl-2.0.html. + * + * Copyright (c) 2010 Paul E. McKenney, IBM. + * + * Much code taken from the Linux kernel. For such code, the option + * to redistribute under later versions of GPL might not be available. + */ + +/* + * Machine parameters. + */ + +#define CONFIG_SMP +#define CONFIG_ARM64 + +#define CACHE_LINE_SIZE 128 +#define ____cacheline_internodealigned_in_smp \ + __attribute__((__aligned__(1 << 7))) + +/* The gcc primitives imply full memory barriers. */ +#define smp_mb__before_atomic_dec() do { } while (0) +#define smp_mb__after_atomic_dec() do { } while (0) +#define smp_mb__before_atomic_inc() do { } while (0) +#define smp_mb__after_atomic_inc() do { } while (0) + +/* __sync_synchronize() is broken before gcc 4.4.1 on many ARM systems. */ +#define smp_mb() __asm__ __volatile__("dmb ish" : : : "memory") + + +#include <stdlib.h> +#include <time.h> + +/* + * Generate 64-bit timestamp. + */ +static __inline__ unsigned long long get_timestamp(void) +{ + unsigned long long thetime; + struct timespec tv; + + if (clock_gettime(CLOCK_MONOTONIC_RAW, &tv) != 0) + return 0; + thetime = ((unsigned long long)tv.tv_sec) * 1000000000ULL + + ((unsigned long long)tv.tv_nsec); + return thetime; +} diff --git a/CodeSamples/depends.mk b/CodeSamples/depends.mk index 8eb45b4..77a76bf 100644 --- a/CodeSamples/depends.mk +++ b/CodeSamples/depends.mk @@ -10,6 +10,8 @@ else ifeq ($(arch),ppc64) target := ppc64 else ifeq ($(arch),ppc64le) target := ppc64 +else ifeq ($(arch),aarch64) +target := arm64 else ifneq (,$(findstring arm,$(arch))) target := arm else @@ -27,6 +29,9 @@ arch_depend := $(top)/arch-ppc64/Makefile.arch else ifeq ($(target),arm) api_depend := $(top)/arch-arm/arch-arm.h arch_depend := $(top)/arch-arm/Makefile.arch +else ifeq ($(target),arm64) +api_depend := $(top)/arch-arm64/arch-arm64.h +arch_depend := $(top)/arch-arm64/Makefile.arch else api_depend := arch_depend := -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe perfbook" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
