2 * Copyright (c) 2003 Matthew Dillon <dillon@backplane.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $DragonFly: src/sys/sys/upcall.h,v 1.4 2003/12/04 20:09:33 dillon Exp $
29 #ifndef _SYS_UPCALL_H_
30 #define _SYS_UPCALL_H_
32 typedef void (*upcall_func_t)(void *);
37 int pending; /* must follow crit_count */
40 #define UPCALL_MAGIC 0x55504331
41 #define UPCALL_MAXCOUNT 32
43 #define UPC_CONTROL_DISPATCH 1
44 #define UPC_CONTROL_NEXT 2
45 #define UPC_CONTROL_DELETE 3
46 #define UPC_CONTROL_POLL 4
47 #define UPC_CONTROL_POLLANDCLEAR 5
49 #define UPC_CRITADD 32 /* NOTE! same as TDPRI_CRIT */
58 void upc_release(struct vmspace *vm, struct proc *p);
59 void postupcall(struct proc *p);
65 int upc_register(struct upcall *, upcall_func_t, upcall_func_t, void *);
66 int upc_control(int, int, void *);
67 void upc_callused_wrapper(void *);