1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _XHAT_SFMMU_H 28 #define _XHAT_SFMMU_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #ifndef _ASM 39 40 #include <sys/types.h> 41 #include <sys/sysmacros.h> 42 #include <vm/hat_sfmmu.h> 43 #include <vm/page.h> 44 #include <vm/xhat.h> 45 46 struct xhat; 47 struct xhat_hme_blk; 48 49 50 /* 51 * Pads to align xhat_hme_blk's xhat_hme_blk_misc 52 * and with xblk_hme with corresponding fields in 53 * those of hme_blk. 54 */ 55 #define XHAT_PADHI (offsetof(struct hme_blk, hblk_misc) - \ 56 sizeof (struct xhat *)) 57 58 #define XHAT_PADLO (offsetof(struct hme_blk, hblk_hme[0]) - \ 59 (offsetof(struct hme_blk, hblk_misc) + \ 60 sizeof (struct hme_blk_misc))) 61 62 /* 63 * This (or, rather, xblk_hme[] member of the structure) is 64 * what gets put on page's p_mappings list. 65 */ 66 struct xhat_hme_blk { 67 struct xhat *xhat_hme_blk_hat; 68 char xblk_pad1[XHAT_PADHI]; 69 struct hme_blk_misc xhat_hme_blk_misc; 70 char xblk_pad2[XHAT_PADLO]; 71 struct sf_hment xblk_hme[1]; 72 }; 73 74 /* 75 * Convert pointers between xhat_hme_blk and provider's 76 * block (these two blocks are always allocated adjacent to 77 * each other). 78 */ 79 #define XBLK2PROVBLK(xblk) ((void *)(((struct xhat_hme_blk *)(xblk)) + 1)) 80 #define PROVBLK2XBLK(pblk) (((struct xhat_hme_blk *)(pblk)) - 1) 81 82 83 84 void xhat_xblkcache_reclaim(void *); 85 86 87 88 #endif /* _ASM */ 89 90 #ifdef __cplusplus 91 } 92 #endif 93 94 #endif /* _XHAT_SFMMU_H */ 95