mirror of
https://github.com/opnsense/src.git
synced 2026-04-27 09:06:49 -04:00
271ce40239
It should fix ck_pr_[load|store]_ptr on mips and riscv, make sure no *fence instructions are used on i386, as older cpus don't support it, and make sure we don't rely on gcc builtins that can lead to calls to libatomic when linked with -O0. MFC after: 1 week
134 lines
4 KiB
C
134 lines
4 KiB
C
/*
|
|
* Copyright 2018 Samy Al Bahra.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD: head/sys/contrib/ck/include/ck_md.h 329388 2018-02-16 17:50:06Z cog
|
|
net $
|
|
*/
|
|
|
|
/*
|
|
* This header file is meant for use of Concurrency Kit in the FreeBSD kernel.
|
|
*/
|
|
|
|
#ifndef CK_MD_H
|
|
#define CK_MD_H
|
|
|
|
#include <sys/param.h>
|
|
|
|
#ifndef _KERNEL
|
|
#error This header file is meant for the FreeBSD kernel.
|
|
#endif /* _KERNEL */
|
|
|
|
#ifndef CK_MD_CACHELINE
|
|
/*
|
|
* FreeBSD's CACHE_LINE macro is a compile-time maximum cache-line size for an
|
|
* architecture, defined to be 128 bytes by default on x86*. Even in presence
|
|
* of adjacent sector prefetch, this doesn't make sense from a modeling
|
|
* perspective.
|
|
*/
|
|
#if defined(__amd64__) || defined(__i386__)
|
|
#define CK_MD_CACHELINE (64)
|
|
#else
|
|
#define CK_MD_CACHELINE (CACHE_LINE_SIZE)
|
|
#endif /* !__amd64__ && !__i386__ */
|
|
#endif /* CK_MD_CACHELINE */
|
|
|
|
#ifndef CK_MD_PAGESIZE
|
|
#define CK_MD_PAGESIZE (PAGE_SIZE)
|
|
#endif
|
|
|
|
/*
|
|
* Once FreeBSD has a mechanism to detect RTM, this can be enabled and RTM
|
|
* facilities can be called. These facilities refer to TSX.
|
|
*/
|
|
#ifndef CK_MD_RTM_DISABLE
|
|
#define CK_MD_RTM_DISABLE
|
|
#endif /* CK_MD_RTM_DISABLE */
|
|
|
|
/*
|
|
* Do not enable pointer-packing-related (VMA) optimizations in kernel-space.
|
|
*/
|
|
#ifndef CK_MD_POINTER_PACK_DISABLE
|
|
#define CK_MD_POINTER_PACK_DISABLE
|
|
#endif /* CK_MD_POINTER_PACK_DISABLE */
|
|
|
|
/*
|
|
* The following would be used for pointer-packing tricks, disabled for the
|
|
* kernel.
|
|
*/
|
|
#ifndef CK_MD_VMA_BITS_UNKNOWN
|
|
#define CK_MD_VMA_BITS_UNKNOWN
|
|
#endif /* CK_MD_VMA_BITS_UNKNOWN */
|
|
|
|
/*
|
|
* Do not enable double operations in kernel-space.
|
|
*/
|
|
#ifndef CK_PR_DISABLE_DOUBLE
|
|
#define CK_PR_DISABLE_DOUBLE
|
|
#endif /* CK_PR_DISABLE_DOUBLE */
|
|
|
|
/*
|
|
* If building for a uni-processor target, then enable the uniprocessor
|
|
* feature flag. This, among other things, will remove the lock prefix.
|
|
*/
|
|
#ifndef SMP
|
|
#define CK_MD_UMP
|
|
#endif /* SMP */
|
|
|
|
/*
|
|
* Disable the use of compiler builtin functions.
|
|
*/
|
|
#define CK_MD_CC_BUILTIN_DISABLE 1
|
|
|
|
/*
|
|
* CK expects those, which are normally defined by the build system.
|
|
*/
|
|
#if defined(__i386__) && !defined(__x86__)
|
|
#define __x86__
|
|
/*
|
|
* If x86 becomes more relevant, we may want to consider importing in
|
|
* __mbk() to avoid potential issues around false sharing.
|
|
*/
|
|
#define CK_MD_TSO
|
|
#define CK_MD_SSE_DISABLE 1
|
|
#elif defined(__amd64__)
|
|
#define CK_MD_TSO
|
|
#elif defined(__sparc64__) && !defined(__sparcv9__)
|
|
#define __sparcv9__
|
|
#define CK_MD_TSO
|
|
#elif defined(__powerpc64__) && !defined(__ppc64__)
|
|
#define __ppc64__
|
|
#elif defined(__powerpc__) && !defined(__ppc__)
|
|
#define __ppc__
|
|
#endif
|
|
|
|
/* If no memory model has been defined, assume RMO. */
|
|
#if !defined(CK_MD_RMO) && !defined(CK_MD_TSO) && !defined(CK_MD_PSO)
|
|
#define CK_MD_RMO
|
|
#endif
|
|
|
|
#define CK_VERSION "0.7.0"
|
|
#define CK_GIT_SHA "db5db44"
|
|
|
|
#endif /* CK_MD_H */
|