From 6f9d9b49672c1b5d55e7937149c7ca692442bf4d Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 1 Mar 2010 14:02:55 -0500 Subject: [PATCH] add Alpha support And you already know what needs to be special-cased for Alpha... [edit by Mathieu Desnoyers] defaults -> generic Signed-off-by: Paolo Bonzini Signed-off-by: Mathieu Desnoyers --- configure.ac | 1 + urcu/arch_alpha.h | 48 +++++++++++++++++++++++++++++++++++++++ urcu/uatomic_arch_alpha.h | 32 ++++++++++++++++++++++++++ 3 files changed, 81 insertions(+) create mode 100644 urcu/arch_alpha.h create mode 100644 urcu/uatomic_arch_alpha.h diff --git a/configure.ac b/configure.ac index ab6f3a2..1ce19d0 100644 --- a/configure.ac +++ b/configure.ac @@ -50,6 +50,7 @@ case $host_cpu in s390) ARCHTYPE="s390" ;; s390x) ARCHTYPE="s390" ;; sparc64) ARCHTYPE="sparc64" ;; + alpha*) ARCHTYPE="alpha" ;; *) ARCHTYPE="unknown";; esac diff --git a/urcu/arch_alpha.h b/urcu/arch_alpha.h new file mode 100644 index 0000000..c9d4923 --- /dev/null +++ b/urcu/arch_alpha.h @@ -0,0 +1,48 @@ +#ifndef _URCU_ARCH_ALPHA_H +#define _URCU_ARCH_ALPHA_H + +/* + * arch_alpha.h: trivial definitions for the Alpha architecture. + * + * Copyright (c) 2010 Paolo Bonzini + * + * This 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. +* + * This 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 this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define mb() asm volatile("mb":::"memory") +#define wmb() asm volatile("wmb":::"memory") +#define read_barrier_depends() asm volatile("mb":::"memory") + +typedef unsigned long long cycles_t; + +static inline cycles_t get_cycles (void) +{ + return 0; /* not supported */ +} + +#ifdef __cplusplus +} +#endif + +#include + +#endif /* _URCU_ARCH_ALPHA_H */ diff --git a/urcu/uatomic_arch_alpha.h b/urcu/uatomic_arch_alpha.h new file mode 100644 index 0000000..0f795e8 --- /dev/null +++ b/urcu/uatomic_arch_alpha.h @@ -0,0 +1,32 @@ +#ifndef _URCU_UATOMIC_ARCH_ALPHA_H +#define _URCU_UATOMIC_ARCH_ALPHA_H + +/* + * Atomic exchange operations for the Alpha architecture. Let GCC do it. + * + * Copyright (c) 2010 Paolo Bonzini + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include +#include +#include + +#endif /* _URCU_UATOMIC_ARCH_ALPHA_H */ -- 2.34.1