Annotation of sys/arch/hp300/include/intr.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: intr.h,v 1.20 2007/05/25 21:27:15 krw Exp $ */
! 2: /* $NetBSD: intr.h,v 1.2 1997/07/24 05:43:08 scottr Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by 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
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
! 31: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: #ifndef _HP300_INTR_H_
! 41: #define _HP300_INTR_H_
! 42:
! 43: #include <machine/psl.h>
! 44: #include <sys/evcount.h>
! 45: #include <sys/queue.h>
! 46:
! 47: #ifdef _KERNEL
! 48: struct isr {
! 49: LIST_ENTRY(isr) isr_link;
! 50: int (*isr_func)(void *);
! 51: void *isr_arg;
! 52: int isr_ipl;
! 53: int isr_priority;
! 54: struct evcount isr_count;
! 55: };
! 56:
! 57: /*
! 58: * These four globals contain the appropriate PSL_S|PSL_IPL? values
! 59: * to raise interrupt priority to the requested level.
! 60: */
! 61: extern unsigned short hp300_bioipl;
! 62: extern unsigned short hp300_netipl;
! 63: extern unsigned short hp300_ttyipl;
! 64: extern unsigned short hp300_vmipl;
! 65:
! 66: /*
! 67: * Interrupt "levels". These are a more abstract representation
! 68: * of interrupt levels, and do not have the same meaning as m68k
! 69: * CPU interrupt levels. They serve two purposes:
! 70: *
! 71: * - properly order ISRs in the list for that CPU ipl
! 72: * - compute CPU PSL values for the spl*() calls.
! 73: */
! 74: #define IPL_NONE 0
! 75: #define IPL_SOFTNET 1
! 76: #define IPL_SOFTCLOCK 1
! 77: #define IPL_BIO 1
! 78: #define IPL_NET 2
! 79: #define IPL_TTY 3
! 80: #define IPL_TTYNOBUF 4 /* XXX */
! 81: #define IPL_CLOCK 6
! 82: #define IPL_STATCLOCK 6
! 83: #define IPL_HIGH 7
! 84:
! 85: /* These spl calls are used by machine-independent code. */
! 86: #define splsoft() _splraise(PSL_S | PSL_IPL1)
! 87: #define splsoftclock() splsoft()
! 88: #define splsoftnet() splsoft()
! 89: #define splbio() _splraise(hp300_bioipl)
! 90: #define splnet() _splraise(hp300_netipl)
! 91: #define spltty() _splraise(hp300_ttyipl)
! 92: #define splclock() _splraise(PSL_S | PSL_IPL6)
! 93: #define splstatclock() _splraise(PSL_S | PSL_IPL6)
! 94: #define splvm() _splraise(hp300_vmipl)
! 95: #define splhigh() _spl(PSL_S | PSL_IPL7)
! 96: #define splsched() splhigh()
! 97:
! 98: /* watch out for side effects */
! 99: #define splx(s) ((s) & PSL_IPL ? _spl((s)) : spl0())
! 100:
! 101: /*
! 102: * Simulated software interrupt register.
! 103: */
! 104: extern volatile u_int8_t ssir;
! 105:
! 106: #define SIR_NET 0x01
! 107: #define SIR_CLOCK 0x02
! 108:
! 109: #define siron(mask) \
! 110: __asm __volatile ( "orb %1,%0" : "=m" (ssir) : "i" (mask))
! 111: #define siroff(mask) \
! 112: __asm __volatile ( "andb %1,%0" : "=m" (ssir) : "ir" (~(mask)))
! 113:
! 114: #define setsoftnet() siron(SIR_NET)
! 115: #define setsoftclock() siron(SIR_CLOCK)
! 116:
! 117: /* locore.s */
! 118: int spl0(void);
! 119:
! 120: /* intr.c */
! 121: void intr_init(void);
! 122: void intr_establish(struct isr *, const char *);
! 123: void intr_disestablish(struct isr *);
! 124: void intr_dispatch(int);
! 125: void intr_printlevels(void);
! 126: #endif /* _KERNEL */
! 127:
! 128: #endif /* _HP300_INTR_H_ */
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