1 /* $NetBSD: intr.h,v 1.10 2005/12/11 12:18:23 christos Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 1998 NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Minoura Makoto and Jason R. Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by The NetBSD Foundation 22 * Inc. and its contributers. 23 * 4. The name of the author may not be used to endorse or promote products 24 * derived from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 31 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _NEWS68K_INTR_H_ 39 #define _NEWS68K_INTR_H_ 40 41 #include <machine/psl.h> 42 #include <m68k/asm_single.h> 43 44 #ifdef _KERNEL 45 /* 46 * news68k can handle software interrupts by its own hardware 47 * so has no need to check for any simulated interrupts, etc. 48 */ 49 #define spl0() _spl0() 50 51 #define spllowersoftclock() spl2() 52 #define splsoft() splraise2() 53 #define splsoftclock() splsoft() 54 #define splsoftnet() splsoft() 55 #define splbio() splraise4() 56 #define splnet() splraise4() 57 #define spltty() splraise5() 58 #define splvm() splraise5() 59 #define splserial() splraise5() 60 #define splclock() splraise6() 61 #define splstatclock() splclock() 62 #define splhigh() spl7() 63 #define splsched() spl7() 64 #define spllock() spl7() 65 66 static __inline void 67 splx(int sr) 68 { 69 70 __asm __volatile("movw %0,%%sr" : : "di" (sr)); 71 } 72 73 /* 74 * simulated software interrupt register 75 */ 76 extern u_char ssir; 77 extern volatile u_char *ctrl_int2; 78 79 #define NSIR (sizeof(ssir) * 8) 80 #define SIR_NET 0 81 #define SIR_CLOCK 1 82 #define NEXT_SIR 2 83 84 #define siron(x) single_inst_bset_b((ssir), (x)) 85 #define siroff(x) single_inst_bclr_b((ssir), (x)) 86 #define setsoftint(x) do { \ 87 siron(x); \ 88 *ctrl_int2 = 0xff; \ 89 } while (0) 90 #define setsoftnet() setsoftint(1 << SIR_NET) 91 #define setsoftclock() setsoftint(1 << SIR_CLOCK) 92 93 u_char allocate_sir(void (*)(void *), void *); 94 void init_sir(void); 95 #endif /* _KERNEL */ 96 97 #endif /* _NEWS68K_INTR_H_ */ 98