1 /* $NetBSD: intr.h,v 1.7 2003/06/16 20:01:00 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 Mark Brinicombe. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Mark Brinicombe 18 * for the NetBSD Project. 19 * 4. The name of the company nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $FreeBSD$ 36 * 37 */ 38 39 #ifndef _SYS_INTR_H_ 40 #define _SYS_INTR_H_ 41 42 #include <sys/systm.h> 43 44 #ifdef notyet 45 #define INTR_SOLO INTR_MD1 46 typedef int intr_irq_filter_t(void *arg, struct trapframe *tf); 47 #else 48 typedef int intr_irq_filter_t(void *arg); 49 #endif 50 51 #define INTR_ISRC_NAMELEN (MAXCOMLEN + 1) 52 53 typedef void intr_ipi_filter_t(void *arg); 54 55 enum intr_isrc_type { 56 INTR_ISRCT_NAMESPACE, 57 INTR_ISRCT_FDT 58 }; 59 60 #define INTR_ISRCF_REGISTERED 0x01 /* registered in a controller */ 61 #define INTR_ISRCF_PERCPU 0x02 /* per CPU interrupt */ 62 #define INTR_ISRCF_BOUND 0x04 /* bound to a CPU */ 63 64 /* Interrupt source definition. */ 65 struct intr_irqsrc { 66 device_t isrc_dev; /* where isrc is mapped */ 67 intptr_t isrc_xref; /* device reference key */ 68 uintptr_t isrc_data; /* device data for isrc */ 69 u_int isrc_irq; /* unique identificator */ 70 enum intr_isrc_type isrc_type; /* how is isrc decribed */ 71 u_int isrc_flags; 72 char isrc_name[INTR_ISRC_NAMELEN]; 73 uint16_t isrc_nspc_type; 74 uint16_t isrc_nspc_num; 75 enum intr_trigger isrc_trig; 76 enum intr_polarity isrc_pol; 77 cpuset_t isrc_cpu; /* on which CPUs is enabled */ 78 u_int isrc_index; 79 u_long * isrc_count; 80 u_int isrc_handlers; 81 struct intr_event * isrc_event; 82 #ifdef INTR_SOLO 83 intr_irq_filter_t * isrc_filter; 84 #endif 85 intr_ipi_filter_t * isrc_ipifilter; 86 void * isrc_arg; 87 #ifdef FDT 88 u_int isrc_ncells; 89 pcell_t isrc_cells[]; /* leave it last */ 90 #endif 91 }; 92 93 void intr_irq_set_name(struct intr_irqsrc *isrc, const char *fmt, ...) 94 __printflike(2, 3); 95 96 void intr_irq_dispatch(struct intr_irqsrc *isrc, struct trapframe *tf); 97 98 #define INTR_IRQ_NSPC_NONE 0 99 #define INTR_IRQ_NSPC_PLAIN 1 100 #define INTR_IRQ_NSPC_IRQ 2 101 #define INTR_IRQ_NSPC_IPI 3 102 103 u_int intr_namespace_map_irq(device_t dev, uint16_t type, uint16_t num); 104 #ifdef FDT 105 u_int intr_fdt_map_irq(phandle_t, pcell_t *, u_int); 106 #endif 107 108 extern device_t intr_irq_root_dev; 109 110 int intr_pic_register(device_t dev, intptr_t xref); 111 int intr_pic_unregister(device_t dev, intptr_t xref); 112 int intr_pic_claim_root(device_t dev, intptr_t xref, intr_irq_filter_t *filter, 113 void *arg, u_int ipicount); 114 115 int intr_irq_add_handler(device_t dev, driver_filter_t, driver_intr_t, void *, 116 u_int, int, void **); 117 int intr_irq_remove_handler(device_t dev, u_int, void *); 118 int intr_irq_config(u_int, enum intr_trigger, enum intr_polarity); 119 int intr_irq_describe(u_int, void *, const char *); 120 121 u_int intr_irq_next_cpu(u_int current_cpu, cpuset_t *cpumask); 122 123 #ifdef SMP 124 int intr_irq_bind(u_int, int); 125 126 void intr_pic_init_secondary(void); 127 128 /* Virtualization for interrupt source IPI counter increment. */ 129 static inline void 130 intr_ipi_increment_count(u_long *counter, u_int cpu) 131 { 132 133 KASSERT(cpu < MAXCPU, ("%s: too big cpu %u", __func__, cpu)); 134 counter[cpu]++; 135 } 136 137 /* Virtualization for interrupt source IPI counters setup. */ 138 u_long * intr_ipi_setup_counters(const char *name); 139 140 #endif 141 #endif /* _SYS_INTR_H */ 142