1 /* $NetBSD: intr.h,v 1.21 2007/12/03 15:33:14 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _ARC_INTR_H_ 40 #define _ARC_INTR_H_ 41 42 #define IPL_NONE 0 /* disable only this interrupt */ 43 #define IPL_SOFTCLOCK 1 /* generic software interrupts (SI 0) */ 44 #define IPL_SOFTBIO 1 /* clock software interrupts (SI 0) */ 45 #define IPL_SOFTNET 2 /* network software interrupts (SI 1) */ 46 #define IPL_SOFTSERIAL 2 /* serial software interrupts (SI 1) */ 47 #define IPL_VM 3 48 #define IPL_SCHED 4 49 #define IPL_HIGH 4 50 51 #define _IPL_N 5 52 53 #define _IPL_SI0_FIRST IPL_SOFTCLOCK 54 #define _IPL_SI0_LAST IPL_SOFTBIO 55 56 #define _IPL_SI1_FIRST IPL_SOFTNET 57 #define _IPL_SI1_LAST IPL_SOFTSERIAL 58 59 /* Interrupt sharing types. */ 60 #define IST_NONE 0 /* none */ 61 #define IST_PULSE 1 /* pulsed */ 62 #define IST_EDGE 2 /* edge-triggered */ 63 #define IST_LEVEL 3 /* level-triggered */ 64 65 #ifdef _KERNEL 66 #ifndef _LOCORE 67 68 #include <mips/locore.h> 69 70 extern const uint32_t *ipl_sr_bits; 71 72 #define spl0() (void)_spllower(0) 73 #define splx(s) (void)_splset(s) 74 75 typedef int ipl_t; 76 typedef struct { 77 ipl_t _sr; 78 } ipl_cookie_t; 79 80 static inline ipl_cookie_t 81 makeiplcookie(ipl_t ipl) 82 { 83 84 return (ipl_cookie_t){._sr = ipl_sr_bits[ipl]}; 85 } 86 87 static inline int 88 splraiseipl(ipl_cookie_t icookie) 89 { 90 91 return _splraise(icookie._sr); 92 } 93 94 #include <sys/spl.h> 95 96 #include <mips/softintr.h> 97 98 struct clockframe; 99 void arc_set_intr(uint32_t, uint32_t (*)(uint32_t, struct clockframe *), int); 100 extern uint32_t cpu_int_mask; 101 102 /* priority order to handle each CPU INT line specified via set_intr() */ 103 #define ARC_INTPRI_TIMER_INT 0 /* independent CPU INT for timer */ 104 #define ARC_INTPRI_JAZZ 1 /* CPU INT for JAZZ local bus */ 105 #define ARC_INTPRI_PCIISA 2 /* CPU INT for PCI/EISA/ISA */ 106 #define ARC_NINTPRI 3 /* number of total used CPU INTs */ 107 108 #endif /* !_LOCORE */ 109 #endif /* _KERNEL */ 110 111 #endif /* _ARC_INTR_H_ */ 112