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head/sys/sys/kern_prefetch.h
| Property | Old Value | New Value |
|---|---|---|
| svn:eol-style | null | native \ No newline at end of property |
| svn:keywords | null | FreeBSD=%H \ No newline at end of property |
| svn:mime-type | null | text/plain \ No newline at end of property |
| #ifndef __kern_prefetch_h__ | |||||
| /*- | |||||
| * Copyright (c) 2016-8 | |||||
imp: full years only. 2016-2018 | |||||
| * Netflix Inc. 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 REGENTS 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 REGENTS 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. | |||||
| * | |||||
| * __FBSDID("$FreeBSD$") | |||||
| */ | |||||
| #define __kern_prefetch_h__ | |||||
| #ifdef _KERNEL | |||||
| #if defined(__amd64__) | |||||
| #include <vm/vm.h> | |||||
| #include <vm/vm_extern.h> | |||||
| #include <vm/vm_page.h> | |||||
| #include <vm/vm_map.h> | |||||
| #include <vm/pmap.h> | |||||
| #endif | |||||
| static __inline void | |||||
| kern_prefetch(const volatile void *addr, void* before) | |||||
| { | |||||
| #if defined(__amd64__) | |||||
| __asm __volatile("prefetcht1 (%1)":"=rm"(*((int32_t *)before)):"r"(addr):); | |||||
impUnsubmitted Not Done Inline ActionsWhy does amd64 need a special thing here? imp: Why does amd64 need a special thing here?
| |||||
| #else | |||||
| __builtin_prefetch(addr); | |||||
| #endif | |||||
| } | |||||
| #endif | |||||
| #endif | |||||
full years only. 2016-2018