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 * Copyright 2014 Garrett D'Amore <garrett@damore.org> 23 * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 #ifndef _SYS_AVINTR_H 27 #define _SYS_AVINTR_H 28 29 30 #include <sys/mutex.h> 31 #include <sys/dditypes.h> 32 #include <sys/ddi_intr.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * Period of autovector structures (add this in to get the next level). 40 */ 41 #define MAXIPL 16 42 #define INT_IPL(x) (x) 43 #define AV_INT_SPURIOUS -1 44 45 typedef uint_t (*avfunc)(caddr_t, caddr_t); 46 47 struct autovec { 48 49 /* 50 * Interrupt handler and argument to pass to it. 51 */ 52 53 struct autovec *av_link; /* pointer to next on in chain */ 54 uint_t (*av_vector)(); 55 caddr_t av_intarg1; 56 caddr_t av_intarg2; 57 uint64_t *av_ticksp; 58 uint_t av_prilevel; /* priority level */ 59 60 /* 61 * Interrupt handle/id (like intrspec structure pointer) used to 62 * identify a specific instance of interrupt handler in case we 63 * have to remove the interrupt handler later. 64 * 65 */ 66 void *av_intr_id; 67 dev_info_t *av_dip; 68 ushort_t av_flags; /* pending flags */ 69 struct autovec *av_ipl_link; /* pointer to next on ipl chain */ 70 }; 71 72 #define AV_PENTRY_VECTMASK 0xff /* low 8 bit used for irqno */ 73 #define AV_PENTRY_PEND 0x100 /* pending hardware interrupt */ 74 #define AV_PENTRY_ONPROC 0x200 /* being serviced by CPU */ 75 #define AV_PENTRY_LEVEL 0x8000 /* level-triggered interrupt */ 76 77 struct av_head { 78 struct autovec *avh_link; 79 ushort_t avh_hi_pri; 80 ushort_t avh_lo_pri; 81 }; 82 83 /* softing contains a bit field of software interrupts which are pending */ 84 struct softint { 85 int st_pending; 86 }; 87 88 #ifdef _KERNEL 89 90 extern kmutex_t av_lock; 91 extern ddi_softint_hdl_impl_t softlevel_hdl[]; 92 extern ddi_softint_hdl_impl_t softlevel1_hdl; 93 extern int add_avintr(void *intr_id, int lvl, avfunc xxintr, char *name, 94 int vect, caddr_t arg1, caddr_t arg2, uint64_t *, dev_info_t *); 95 extern int add_nmintr(int lvl, avfunc nmintr, char *name, caddr_t arg); 96 extern int add_avsoftintr(void *intr_id, int lvl, avfunc xxintr, 97 char *name, caddr_t arg1, caddr_t arg2); 98 extern int rem_avsoftintr(void *intr_id, int lvl, avfunc xxintr); 99 extern int av_softint_movepri(void *intr_id, int old_lvl); 100 extern void update_avsoftintr_args(void *intr_id, int lvl, caddr_t arg2); 101 extern void rem_avintr(void *intr_id, int lvl, avfunc xxintr, int vect); 102 extern void wait_till_seen(int ipl); 103 extern uint_t softlevel1(caddr_t, caddr_t); 104 105 #endif /* _KERNEL */ 106 107 #ifdef __cplusplus 108 } 109 #endif 110 111 #endif /* _SYS_AVINTR_H */ 112