1e999111aSAlan Cox /*- 2e999111aSAlan Cox * Copyright (c) 2009 Alan L. Cox <alc@cs.rice.edu> 3e999111aSAlan Cox * All rights reserved. 4e999111aSAlan Cox * 5e999111aSAlan Cox * Redistribution and use in source and binary forms, with or without 6e999111aSAlan Cox * modification, are permitted provided that the following conditions 7e999111aSAlan Cox * are met: 8e999111aSAlan Cox * 1. Redistributions of source code must retain the above copyright 9e999111aSAlan Cox * notice, this list of conditions and the following disclaimer. 10e999111aSAlan Cox * 2. Redistributions in binary form must reproduce the above copyright 11e999111aSAlan Cox * notice, this list of conditions and the following disclaimer in the 12e999111aSAlan Cox * documentation and/or other materials provided with the distribution. 13e999111aSAlan Cox * 14e999111aSAlan Cox * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15e999111aSAlan Cox * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16e999111aSAlan Cox * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17e999111aSAlan Cox * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18e999111aSAlan Cox * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19e999111aSAlan Cox * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20e999111aSAlan Cox * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21e999111aSAlan Cox * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22e999111aSAlan Cox * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23e999111aSAlan Cox * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24e999111aSAlan Cox * SUCH DAMAGE. 25e999111aSAlan Cox * 26e999111aSAlan Cox * $FreeBSD$ 27e999111aSAlan Cox */ 28e999111aSAlan Cox 29e999111aSAlan Cox #ifndef _MACHINE_VM_H_ 30e999111aSAlan Cox #define _MACHINE_VM_H_ 31e999111aSAlan Cox 3241a7c569SMichal Meloun #include <machine/acle-compat.h> 3341a7c569SMichal Meloun 3441a7c569SMichal Meloun #if __ARM_ARCH >= 6 3584233ddbSIan Lepore #include <machine/pte-v6.h> 3684233ddbSIan Lepore 3784233ddbSIan Lepore #define VM_MEMATTR_WB_WA ((vm_memattr_t)PTE2_ATTR_WB_WA) 3884233ddbSIan Lepore #define VM_MEMATTR_NOCACHE ((vm_memattr_t)PTE2_ATTR_NOCACHE) 3984233ddbSIan Lepore #define VM_MEMATTR_DEVICE ((vm_memattr_t)PTE2_ATTR_DEVICE) 4084233ddbSIan Lepore #define VM_MEMATTR_SO ((vm_memattr_t)PTE2_ATTR_SO) 41*83242da4SMichal Meloun #define VM_MEMATTR_WRITE_THROUGH ((vm_memattr_t)PTE2_ATTR_WT) 4284233ddbSIan Lepore 4384233ddbSIan Lepore #define VM_MEMATTR_DEFAULT VM_MEMATTR_WB_WA 44e53ea2abSMichal Meloun #define VM_MEMATTR_UNCACHEABLE VM_MEMATTR_SO /* misused by DMA */ 4541a7c569SMichal Meloun #ifdef _KERNEL 4641a7c569SMichal Meloun /* Don't export aliased VM_MEMATTR to userland */ 47*83242da4SMichal Meloun #define VM_MEMATTR_WRITE_COMBINING VM_MEMATTR_WRITE_THROUGH /* for DRM */ 48e53ea2abSMichal Meloun #define VM_MEMATTR_WRITE_BACK VM_MEMATTR_WB_WA /* for DRM */ 4941a7c569SMichal Meloun #endif 5084233ddbSIan Lepore #else 5165d79ed7SOlivier Houchard /* Memory attribute configuration. */ 523153e878SAlan Cox #define VM_MEMATTR_DEFAULT 0 5365d79ed7SOlivier Houchard #define VM_MEMATTR_UNCACHEABLE 1 5484233ddbSIan Lepore #endif 55e999111aSAlan Cox 565797795fSAlan Cox #endif /* !_MACHINE_VM_H_ */ 57