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 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * Copyright 2018 Joyent, Inc. 26 */ 27 28 #ifndef _SYS_X_CALL_H 29 #define _SYS_X_CALL_H 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #ifndef _ASM 36 37 #define XC_MSG_FREE (0) /* msg in xc_free queue */ 38 #define XC_MSG_ASYNC (1) /* msg in slave xc_msgbox */ 39 #define XC_MSG_CALL (2) /* msg in slave xc_msgbox */ 40 #define XC_MSG_SYNC (3) /* msg in slave xc_msgbox */ 41 #define XC_MSG_WAITING (4) /* msg in master xc_msgbox or xc_waiters */ 42 #define XC_MSG_RELEASED (5) /* msg in slave xc_msgbox */ 43 #define XC_MSG_DONE (6) /* msg in master xc_msgbox */ 44 45 typedef uintptr_t xc_arg_t; 46 typedef int (*xc_func_t)(xc_arg_t, xc_arg_t, xc_arg_t); 47 48 /* 49 * One of these is stored in each CPU's machcpu data, plus one extra for 50 * priority (ie panic) messages 51 */ 52 typedef struct xc_data { 53 xc_func_t xc_func; 54 xc_arg_t xc_a1; 55 xc_arg_t xc_a2; 56 xc_arg_t xc_a3; 57 } xc_data_t; 58 59 /* 60 * This is kept as small as possible, since for N CPUs we need N * N of them. 61 */ 62 typedef struct xc_msg { 63 uint8_t xc_command; 64 uint16_t xc_master; 65 uint16_t xc_slave; 66 struct xc_msg *xc_next; 67 } xc_msg_t; 68 69 /* 70 * Cross-call routines. 71 */ 72 #if defined(_KERNEL) 73 74 extern void xc_init_cpu(struct cpu *); 75 extern void xc_fini_cpu(struct cpu *); 76 extern int xc_flush_cpu(struct cpu *); 77 extern uint_t xc_serv(caddr_t, caddr_t); 78 79 #define CPUSET2BV(set) ((ulong_t *)(void *)&(set)) 80 extern void xc_call(xc_arg_t, xc_arg_t, xc_arg_t, ulong_t *, xc_func_t); 81 extern void xc_call_nowait(xc_arg_t, xc_arg_t, xc_arg_t, ulong_t *, 82 xc_func_t); 83 extern void xc_sync(xc_arg_t, xc_arg_t, xc_arg_t, ulong_t *, xc_func_t); 84 extern void xc_priority(xc_arg_t, xc_arg_t, xc_arg_t, ulong_t *, xc_func_t); 85 86 #endif /* _KERNEL */ 87 88 #endif /* !_ASM */ 89 90 #ifdef __cplusplus 91 } 92 #endif 93 94 #endif /* _SYS_X_CALL_H */ 95