1 /* $NetBSD: intr.h,v 1.19 2015/08/17 06:16:03 knakahara Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _SYS_INTR_H_ 33 #define _SYS_INTR_H_ 34 35 #define INTRIDBUF 64 36 #define INTRDEVNAMEBUF 256 37 38 #ifdef _KERNEL 39 40 #include <sys/types.h> 41 42 struct cpu_info; 43 44 /* Public interface. */ 45 void *softint_establish(u_int, void (*)(void *), void *); 46 void softint_disestablish(void *); 47 void softint_schedule(void *); 48 void softint_schedule_cpu(void *, struct cpu_info *); 49 50 /* MI hooks. */ 51 void softint_init(struct cpu_info *); 52 lwp_t *softint_picklwp(void); 53 void softint_overlay(void); 54 void softint_block(lwp_t *); 55 56 /* MD-MI interface. */ 57 void softint_init_md(lwp_t *, u_int, uintptr_t *); 58 #ifndef __HAVE_MD_SOFTINT_TRIGGER 59 void softint_trigger(uintptr_t); 60 #endif 61 void softint_dispatch(lwp_t *, int); 62 63 /* Flags for softint_establish(). */ 64 #define SOFTINT_BIO 0x0000 65 #define SOFTINT_CLOCK 0x0001 66 #define SOFTINT_SERIAL 0x0002 67 #define SOFTINT_NET 0x0003 68 #define SOFTINT_MPSAFE 0x0100 69 #define SOFTINT_RCPU 0x0200 70 71 /* Implementation private flags. */ 72 #define SOFTINT_PENDING 0x1000 73 #define SOFTINT_ACTIVE 0x2000 74 75 #define SOFTINT_COUNT 0x0004 76 #define SOFTINT_LVLMASK 0x00ff 77 #define SOFTINT_IMPMASK 0xf000 78 79 extern u_int softint_timing; 80 81 /* 82 * Historical aliases. 83 */ 84 #define IPL_BIO IPL_VM 85 #define IPL_NET IPL_VM 86 #define IPL_TTY IPL_VM 87 #define IPL_AUDIO IPL_SCHED 88 #define IPL_CLOCK IPL_SCHED 89 #define IPL_SERIAL IPL_HIGH 90 91 #define splbio() splvm() 92 #define splnet() splvm() 93 #define spltty() splvm() 94 #define splaudio() splsched() 95 #define splclock() splsched() 96 #define splserial() splhigh() 97 98 #include <machine/intr.h> 99 100 #elif defined(_KMEMUSER) 101 #define SOFTINT_COUNT 0x0004 102 #endif /* _KERNEL */ 103 104 #endif /* _SYS_INTR_H_ */ 105