bf2dcec4f5
and only splnet() is allowed for the protection of data structures used by network devices.
136 lines
4.8 KiB
C
136 lines
4.8 KiB
C
/* $NetBSD: intr.h,v 1.11 2001/04/13 23:30:02 thorpej Exp $ */
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/*
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* Copyright (c) 1998 Jonathan Stone. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jonathan Stone for
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* the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACHINE_INTR_H_
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#define _MACHINE_INTR_H_
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#define IPL_NONE 0 /* disable only this interrupt */
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#define IPL_BIO 1 /* disable block I/O interrupts */
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#define IPL_NET 2 /* disable network interrupts */
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#define IPL_TTY 3 /* disable terminal interrupts */
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#define IPL_CLOCK 4 /* disable clock interrupts */
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#define IPL_STATCLOCK 5 /* disable profiling interrupts */
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#define IPL_SERIAL 6 /* disable serial hardware interrupts */
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#define IPL_HIGH 7 /* disable all interrupts */
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#ifdef _KERNEL
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#ifndef _LOCORE
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#include <mips/cpuregs.h>
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extern int _splraise __P((int));
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extern int _spllower __P((int));
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extern int _splset __P((int));
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extern int _splget __P((void));
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extern void _splnone __P((void));
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extern void _setsoftintr __P((int));
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extern void _clrsoftintr __P((int));
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/*
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* software simulated interrupt
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*/
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#define SIR_NET 0x01
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#define SIR_SERIAL 0x02
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#define setsoft(x) do { \
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extern u_int ssir; \
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int s; \
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\
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s = splhigh(); \
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ssir |= (x); \
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_setsoftintr(MIPS_SOFT_INT_MASK_1); \
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splx(s); \
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} while (0)
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#define setsoftclock() _setsoftintr(MIPS_SOFT_INT_MASK_0)
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#define setsoftnet() setsoft(SIR_NET)
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#define setsoftserial() setsoft(SIR_SERIAL)
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/*
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* nesting interrupt masks.
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*/
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#define MIPS_INT_MASK_SPL_SOFT0 MIPS_SOFT_INT_MASK_0
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#define MIPS_INT_MASK_SPL_SOFT1 (MIPS_SOFT_INT_MASK_1|MIPS_INT_MASK_SPL_SOFT0)
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#define MIPS_INT_MASK_SPL0 (MIPS_INT_MASK_0|MIPS_INT_MASK_SPL_SOFT1)
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#define MIPS_INT_MASK_SPL1 (MIPS_INT_MASK_1|MIPS_INT_MASK_SPL0)
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#define MIPS_INT_MASK_SPL2 (MIPS_INT_MASK_2|MIPS_INT_MASK_SPL1)
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#define MIPS_INT_MASK_SPL3 (MIPS_INT_MASK_3|MIPS_INT_MASK_SPL2)
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#define MIPS_INT_MASK_SPL4 (MIPS_INT_MASK_4|MIPS_INT_MASK_SPL3)
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#define MIPS_INT_MASK_SPL5 (MIPS_INT_MASK_5|MIPS_INT_MASK_SPL4)
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#define spl0() (void)_spllower(0)
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#define splx(s) (void)_splset(s)
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#define splbio() _splraise(MIPS_INT_MASK_SPL0)
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#define splnet() _splraise(MIPS_INT_MASK_SPL1)
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#define spltty() _splraise(MIPS_INT_MASK_SPL1)
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#define splvm() _splraise(MIPS_INT_MASK_SPL1)
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#define splclock() _splraise(MIPS_INT_MASK_SPL2)
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#define splstatclock() _splraise(MIPS_INT_MASK_SPL2)
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#define splhigh() _splraise(MIPS_INT_MASK_SPL2)
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#define splsched() splhigh()
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#define spllock() splhigh()
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#define splsoftclock() _splraise(MIPS_INT_MASK_SPL_SOFT0)
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#define splsoftnet() _splraise(MIPS_INT_MASK_SPL_SOFT1)
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#define spllowersoftclock() _spllower(MIPS_INT_MASK_SPL_SOFT0)
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/*
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* Index into intrcnt[], which is defined in locore
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*/
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#define SOFTCLOCK_INTR 0
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#define SOFTNET_INTR 1
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#define SERIAL0_INTR 2
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#define SERIAL1_INTR 3
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#define SERIAL2_INTR 4
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#define LANCE_INTR 5
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#define SCSI_INTR 6
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#define ERROR_INTR 7
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#define HARDCLOCK_INTR 8
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#define FPU_INTR 9
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#define SLOT1_INTR 10
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#define SLOT2_INTR 11
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#define SLOT3_INTR 12
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#define FLOPPY_INTR 13
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#define STRAY_INTR 14
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extern u_int intrcnt[];
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/* handle i/o device interrupts */
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extern void news3400_intr __P((u_int, u_int, u_int, u_int));
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extern void news5000_intr __P((u_int, u_int, u_int, u_int));
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extern void (*enable_intr) __P((void));
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extern void (*disable_intr) __P((void));
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#endif /* !_LOCORE */
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#endif /* _KERNEL */
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#endif /* _MACHINE_INTR_H_ */
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