picvar.h revision 1.17
1 /* $NetBSD: picvar.h,v 1.17 2018/07/15 16:03:24 jmcneill Exp $ */ 2 /*- 3 * Copyright (c) 2008 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Matt Thomas. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 #ifndef _ARM_PIC_PICVAR_H_ 31 #define _ARM_PIC_PICVAR_H_ 32 33 #ifdef _KERNEL_OPT 34 #include "opt_multiprocessor.h" 35 #endif 36 37 #ifdef MULTIPROCESSOR 38 #include <sys/kcpuset.h> 39 #endif 40 41 int _splraise(int); 42 int _spllower(int); 43 void splx(int); 44 const char * 45 intr_typename(int); 46 47 struct pic_softc; 48 struct intrsource; 49 struct cpu_info; 50 51 #define IPI_AST 0 /* just get an interrupt */ 52 #define IPI_XCALL 1 /* xcall */ 53 #define IPI_NOP 2 /* just get an interrupt (armv6) */ 54 #define IPI_SHOOTDOWN 3 /* cause a tlb shootdown */ 55 #define IPI_DDB 4 /* enter DDB */ 56 #define IPI_GENERIC 5 /* generic IPI */ 57 #ifdef __HAVE_PREEMPTION 58 #define IPI_KPREEMPT 6 /* cause a preemption */ 59 #define NIPI 7 60 #else 61 #define NIPI 6 62 #endif 63 64 #if !defined(__HAVE_PIC_SET_PRIORITY) 65 #define __HAVE_PIC_PENDING_INTRS 66 #endif 67 68 int pic_handle_intr(void *); 69 #if defined(__HAVE_PIC_PENDING_INTRS) 70 void pic_mark_pending(struct pic_softc *pic, int irq); 71 void pic_mark_pending_source(struct pic_softc *pic, struct intrsource *is); 72 uint32_t pic_mark_pending_sources(struct pic_softc *pic, size_t irq_base, 73 uint32_t pending); 74 #endif /* __HAVE_PIC_PENDING_INTRS */ 75 void *pic_establish_intr(struct pic_softc *pic, int irq, int ipl, int type, 76 int (*func)(void *), void *arg); 77 int pic_alloc_irq(struct pic_softc *pic); 78 void pic_disestablish_source(struct intrsource *is); 79 #ifdef MULTIPROCESSOR 80 void pic_distribute_source(struct intrsource *is, const kcpuset_t *, 81 kcpuset_t *); 82 #endif 83 void pic_do_pending_ints(register_t psw, int newipl, void *frame); 84 void pic_dispatch(struct intrsource *is, void *frame); 85 86 void *intr_establish(int irq, int ipl, int type, int (*func)(void *), 87 void *arg); 88 void intr_disestablish(void *); 89 #ifdef MULTIPROCESSOR 90 void intr_cpu_init(struct cpu_info *); 91 void intr_ipi_send(const kcpuset_t *, u_long ipi); 92 #endif 93 94 #ifdef _INTR_PRIVATE 95 96 #include "opt_arm_intr_impl.h" 97 98 #include <sys/evcnt.h> 99 #include <sys/percpu.h> 100 101 #ifndef PIC_MAXPICS 102 #define PIC_MAXPICS 32 103 #endif 104 #ifndef PIC_MAXSOURCES 105 #define PIC_MAXSOURCES 64 106 #endif 107 #ifndef PIC_MAXMAXSOURCES 108 #define PIC_MAXMAXSOURCES 128 109 #endif 110 111 struct intrsource { 112 int (*is_func)(void *); 113 void *is_arg; 114 struct pic_softc *is_pic; /* owning PIC */ 115 uint8_t is_type; /* IST_xxx */ 116 uint8_t is_ipl; /* IPL_xxx */ 117 uint8_t is_irq; /* local to pic */ 118 uint8_t is_iplidx; 119 bool is_mpsafe; 120 char is_source[16]; 121 #ifdef MULTIPROCESSOR 122 kcpuset_t *is_affinity; 123 #endif 124 }; 125 126 struct pic_percpu { 127 struct evcnt *pcpu_evs; 128 char *pcpu_name; 129 uint32_t pcpu_magic; 130 }; 131 132 #define PICPERCPU_MAGIC 0xfeedface 133 134 struct pic_softc { 135 const struct pic_ops *pic_ops; 136 struct intrsource **pic_sources; 137 #ifdef __HAVE_PIC_PENDING_INTRS 138 volatile uint32_t pic_pending_irqs[(PIC_MAXSOURCES + 31) / 32]; 139 volatile uint32_t pic_blocked_irqs[(PIC_MAXSOURCES + 31) / 32]; 140 volatile uint32_t pic_pending_ipls; 141 #endif 142 #ifdef MULTIPROCESSOR 143 kcpuset_t *pic_cpus; 144 #endif 145 size_t pic_maxsources; 146 percpu_t *pic_percpu; 147 uint8_t pic_id; 148 int16_t pic_irqbase; 149 char pic_name[14]; 150 }; 151 152 struct pic_ops { 153 void (*pic_unblock_irqs)(struct pic_softc *, size_t, uint32_t); 154 void (*pic_block_irqs)(struct pic_softc *, size_t, uint32_t); 155 int (*pic_find_pending_irqs)(struct pic_softc *); 156 157 void (*pic_establish_irq)(struct pic_softc *, struct intrsource *); 158 void (*pic_source_name)(struct pic_softc *, int, char *, size_t); 159 160 #ifdef __HAVE_PIC_SET_PRIORITY 161 void (*pic_set_priority)(struct pic_softc *, int); 162 #endif 163 #ifdef MULTIPROCESSOR 164 void (*pic_cpu_init)(struct pic_softc *, struct cpu_info *); 165 void (*pic_ipi_send)(struct pic_softc *, const kcpuset_t *, u_long); 166 int (*pic_set_affinity)(struct pic_softc *, size_t, const kcpuset_t *); 167 void (*pic_get_affinity)(struct pic_softc *, size_t, kcpuset_t *); 168 #endif 169 }; 170 171 #ifdef __HAVE_PIC_SET_PRIORITY 172 /* 173 * This is used to update a hardware pic with a value corresponding 174 * to the ipl being set. 175 */ 176 struct cpu_info; 177 void pic_set_priority(struct cpu_info *, int); 178 #else 179 /* Using an inline causes catch-22 problems with cpu.h */ 180 #define pic_set_priority(ci, newipl) ((void)((ci)->ci_cpl = (newipl))) 181 #endif 182 183 void pic_add(struct pic_softc *, int); 184 void pic_do_pending_int(void); 185 #ifdef MULTIPROCESSOR 186 int pic_ipi_ast(void *); 187 int pic_ipi_nop(void *); 188 int pic_ipi_xcall(void *); 189 int pic_ipi_generic(void *); 190 int pic_ipi_shootdown(void *); 191 int pic_ipi_ddb(void *); 192 int pic_ipi_kpreempt(void *); 193 #endif 194 #ifdef __HAVE_PIC_FAST_SOFTINTS 195 int pic_handle_softint(void *); 196 #endif 197 198 extern struct pic_softc * pic_list[PIC_MAXPICS]; 199 #endif /* _INTR_PRIVATE */ 200 201 #endif /* _ARM_PIC_PICVAR_H_ */ 202
Indexes created Tue Sep 30 17:09:57 GMT 2025