1195033Salc/*- 2195033Salc * Copyright (c) 2009 Alan L. Cox <alc@cs.rice.edu> 3195033Salc * All rights reserved. 4195033Salc * 5195033Salc * Redistribution and use in source and binary forms, with or without 6195033Salc * modification, are permitted provided that the following conditions 7195033Salc * are met: 8195033Salc * 1. Redistributions of source code must retain the above copyright 9195033Salc * notice, this list of conditions and the following disclaimer. 10195033Salc * 2. Redistributions in binary form must reproduce the above copyright 11195033Salc * notice, this list of conditions and the following disclaimer in the 12195033Salc * documentation and/or other materials provided with the distribution. 13195033Salc * 14195033Salc * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15195033Salc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16195033Salc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17195033Salc * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18195033Salc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19195033Salc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20195033Salc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21195033Salc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22195033Salc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23195033Salc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24195033Salc * SUCH DAMAGE. 25195033Salc * 26195033Salc * $FreeBSD$ 27195033Salc */ 28195033Salc 29195033Salc#ifndef _MACHINE_VM_H_ 30195033Salc#define _MACHINE_VM_H_ 31195033Salc 32295036Smmel#if __ARM_ARCH >= 6 33295257Sskra#define VM_MEMATTR_WB_WA ((vm_memattr_t)0) 34295257Sskra#define VM_MEMATTR_NOCACHE ((vm_memattr_t)1) 35295257Sskra#define VM_MEMATTR_DEVICE ((vm_memattr_t)2) 36295257Sskra#define VM_MEMATTR_SO ((vm_memattr_t)3) 37295257Sskra#define VM_MEMATTR_WRITE_THROUGH ((vm_memattr_t)4) 38280712Sian 39291492Smmel#define VM_MEMATTR_DEFAULT VM_MEMATTR_WB_WA 40291492Smmel#define VM_MEMATTR_UNCACHEABLE VM_MEMATTR_SO /* misused by DMA */ 41295036Smmel#ifdef _KERNEL 42295036Smmel/* Don't export aliased VM_MEMATTR to userland */ 43295091Smmel#define VM_MEMATTR_WRITE_COMBINING VM_MEMATTR_WRITE_THROUGH /* for DRM */ 44291492Smmel#define VM_MEMATTR_WRITE_BACK VM_MEMATTR_WB_WA /* for DRM */ 45295036Smmel#endif 46280712Sian#else 47244414Scognet/* Memory attribute configuration. */ 48195649Salc#define VM_MEMATTR_DEFAULT 0 49244414Scognet#define VM_MEMATTR_UNCACHEABLE 1 50280712Sian#endif 51195033Salc 52195060Salc#endif /* !_MACHINE_VM_H_ */ 53