intr_machdep.h revision 88623
1/*- 2 * Copyright (c) 2001 Jake Burkholder. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/sparc64/include/intr_machdep.h 88623 2001-12-29 06:57:55Z jake $ 27 */ 28 29#ifndef _MACHINE_INTR_MACHDEP_H_ 30#define _MACHINE_INTR_MACHDEP_H_ 31 32#define NPIL (1 << 4) 33#define NIV (1 << 11) 34 35#define IQ_SIZE (NPIL * 2) 36#define IQ_MASK (IQ_SIZE - 1) 37 38#define IH_SHIFT PTR_SHIFT 39#define IQE_SHIFT 5 40#define IV_SHIFT 5 41 42#define PIL_LOW 1 /* stray interrupts */ 43#define PIL_ITHREAD 2 /* interrupts that use ithreads */ 44#define PIL_FAST 13 /* fast interrupts */ 45#define PIL_TICK 14 46 47typedef void ih_func_t(struct trapframe *); 48typedef void iv_func_t(void *); 49 50struct iqe { 51 u_int iqe_tag; 52 u_int iqe_pri; 53 u_long iqe_vec; 54 iv_func_t *iqe_func; 55 void *iqe_arg; 56}; 57 58struct intr_queue { 59 struct iqe iq_queue[IQ_SIZE]; /* must be first */ 60 u_long iq_head; 61 u_long iq_tail; 62}; 63 64struct ithd; 65 66struct intr_vector { 67 iv_func_t *iv_func; 68 void *iv_arg; 69 struct ithd *iv_ithd; 70 u_int iv_pri; 71 u_int iv_vec; 72}; 73 74extern ih_func_t *intr_handlers[]; 75extern struct intr_vector intr_vectors[]; 76 77void intr_setup(int level, ih_func_t *ihf, int pri, iv_func_t *ivf, 78 void *iva); 79void intr_init(void); 80int inthand_add(const char *name, int vec, void (*handler)(void *), 81 void *arg, int flags, void **cookiep); 82int inthand_remove(int vec, void *cookie); 83 84ih_func_t intr_dequeue; 85 86#endif 87