1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2013 The FreeBSD Foundation 5 * 6 * This software was developed by Konstantin Belousov <kib@FreeBSD.org> 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifndef _DEV_IOMMU_IOMMU_GAS_H_ 32 #define _DEV_IOMMU_IOMMU_GAS_H_ 33 34 /* Map flags */ 35 #define IOMMU_MF_CANWAIT 0x0001 36 #define IOMMU_MF_CANSPLIT 0x0002 37 #define IOMMU_MF_RMRR 0x0004 38 39 #define IOMMU_PGF_WAITOK 0x0001 40 #define IOMMU_PGF_ZERO 0x0002 41 #define IOMMU_PGF_ALLOC 0x0004 42 #define IOMMU_PGF_NOALLOC 0x0008 43 #define IOMMU_PGF_OBJL 0x0010 44 45 #define IOMMU_MAP_ENTRY_PLACE 0x0001 /* Fake entry */ 46 #define IOMMU_MAP_ENTRY_RMRR 0x0002 /* Permanent, not linked by 47 dmamap_link */ 48 #define IOMMU_MAP_ENTRY_MAP 0x0004 /* Busdma created, linked by 49 dmamap_link */ 50 #define IOMMU_MAP_ENTRY_UNMAPPED 0x0010 /* No backing pages */ 51 #define IOMMU_MAP_ENTRY_REMOVING 0x0020 /* In process of removal by 52 iommu_gas_remove() */ 53 #define IOMMU_MAP_ENTRY_FAKE 0x0040 /* disable assert in cmp() */ 54 #define IOMMU_MAP_ENTRY_READ 0x1000 /* Read permitted */ 55 #define IOMMU_MAP_ENTRY_WRITE 0x2000 /* Write permitted */ 56 #define IOMMU_MAP_ENTRY_SNOOP 0x4000 /* Snoop */ 57 #define IOMMU_MAP_ENTRY_TM 0x8000 /* Transient */ 58 59 #endif /* !_DEV_IOMMU_IOMMU_GAS_H_ */ 60