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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _LPAD_H 28 #define _LPAD_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 /* 33 * sun4v Landing Pad 34 */ 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 #ifndef _ASM 41 42 #include <sys/pte.h> 43 44 typedef union { 45 struct { 46 unsigned int rsvd0:32; 47 unsigned int rsvd1:29; 48 unsigned int perm:1; 49 unsigned int mmuflags:2; 50 } flag_bits; 51 uint64_t ll; 52 } lpad_map_flag_t; 53 54 typedef struct lpad_map { 55 lpad_map_flag_t flags; 56 uint64_t va; 57 tte_t tte; 58 } lpad_map_t; 59 60 #define flag_mmuflags flags.flag_bits.mmuflags 61 #define flag_perm flags.flag_bits.perm 62 63 typedef struct lpad_data { 64 uint64_t magic; /* magic value for sanity checking */ 65 uint64_t *inuse; /* clear flag when done with lpad */ 66 uint64_t mmfsa_ra; /* RA of MMU fault status area */ 67 uint64_t pc; /* VA of CPU startup function */ 68 uint64_t arg; /* argument to startup function */ 69 uint64_t nmap; /* number of mappings */ 70 lpad_map_t map[1]; /* array of mappings */ 71 } lpad_data_t; 72 73 extern uint64_t *lpad_setup(int cpuid, uint64_t pc, uint64_t arg); 74 75 #endif /* ! _ASM */ 76 77 /* 78 * General landing pad constants 79 */ 80 #define LPAD_TEXT_SIZE 1024 81 #define LPAD_DATA_SIZE 1024 82 #define LPAD_SIZE (LPAD_TEXT_SIZE + LPAD_DATA_SIZE) 83 #define LPAD_MAGIC_VAL 0x4C502D4D41474943 /* "LP-MAGIC" */ 84 85 /* 86 * Masks for the lpad_map_t flag bitfield 87 */ 88 #define FLAG_MMUFLAGS_MASK 0x3 89 #define FLAG_LOCK_MASK 0x4 90 91 #ifdef __cplusplus 92 } 93 #endif 94 95 #endif /* _LPAD_H */ 96