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 (c) 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #ifndef _SYS_AVINTR_H 26 #define _SYS_AVINTR_H 27 28 29 #include <sys/mutex.h> 30 #include <sys/dditypes.h> 31 #include <sys/ddi_intr.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /* 38 * Period of autovector structures (add this in to get the next level). 39 */ 40 #define MAXIPL 16 41 #define INT_IPL(x) (x) 42 #define AV_INT_SPURIOUS -1 43 44 #ifdef __STDC__ 45 typedef uint_t (*avfunc)(caddr_t, caddr_t); 46 #else 47 typedef uint_t (*avfunc)(); 48 #endif /* __STDC__ */ 49 50 struct autovec { 51 52 /* 53 * Interrupt handler and argument to pass to it. 54 */ 55 56 struct autovec *av_link; /* pointer to next on in chain */ 57 uint_t (*av_vector)(); 58 caddr_t av_intarg1; 59 caddr_t av_intarg2; 60 uint64_t *av_ticksp; 61 uint_t av_prilevel; /* priority level */ 62 63 /* 64 * Interrupt handle/id (like intrspec structure pointer) used to 65 * identify a specific instance of interrupt handler in case we 66 * have to remove the interrupt handler later. 67 * 68 */ 69 void *av_intr_id; 70 dev_info_t *av_dip; 71 ushort_t av_flags; /* pending flags */ 72 struct autovec *av_ipl_link; /* pointer to next on ipl chain */ 73 }; 74 75 #define AV_PENTRY_VECTMASK 0xff /* low 8 bit used for irqno */ 76 #define AV_PENTRY_PEND 0x100 /* pending hardware interrupt */ 77 #define AV_PENTRY_ONPROC 0x200 /* being serviced by CPU */ 78 #define AV_PENTRY_LEVEL 0x8000 /* level-triggered interrupt */ 79 80 struct av_head { 81 struct autovec *avh_link; 82 ushort_t avh_hi_pri; 83 ushort_t avh_lo_pri; 84 }; 85 86 /* softing contains a bit field of software interrupts which are pending */ 87 struct softint { 88 int st_pending; 89 }; 90 91 #ifdef _KERNEL 92 93 extern kmutex_t av_lock; 94 extern ddi_softint_hdl_impl_t softlevel_hdl[]; 95 extern ddi_softint_hdl_impl_t softlevel1_hdl; 96 extern int add_avintr(void *intr_id, int lvl, avfunc xxintr, char *name, 97 int vect, caddr_t arg1, caddr_t arg2, uint64_t *, dev_info_t *); 98 extern int add_nmintr(int lvl, avfunc nmintr, char *name, caddr_t arg); 99 extern int add_avsoftintr(void *intr_id, int lvl, avfunc xxintr, 100 char *name, caddr_t arg1, caddr_t arg2); 101 extern int rem_avsoftintr(void *intr_id, int lvl, avfunc xxintr); 102 extern int av_softint_movepri(void *intr_id, int old_lvl); 103 extern void update_avsoftintr_args(void *intr_id, int lvl, caddr_t arg2); 104 extern void rem_avintr(void *intr_id, int lvl, avfunc xxintr, int vect); 105 extern void wait_till_seen(int ipl); 106 extern uint_t softlevel1(caddr_t, caddr_t); 107 108 #endif /* _KERNEL */ 109 110 #ifdef __cplusplus 111 } 112 #endif 113 114 #endif /* _SYS_AVINTR_H */ 115