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5352136a25
if they already contain the correct kernel selectors. Reviewed by: peter Suggested by: peter
101 lines
3.5 KiB
ArmAsm
101 lines
3.5 KiB
ArmAsm
/*-
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* Copyright (c) 1989, 1990 William F. Jolitz.
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* Copyright (c) 1990 The Regents of the University of California.
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* 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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: vector.s, 386BSD 0.1 unknown origin
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* $FreeBSD$
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*/
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/*
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* Interrupt entry points for external interrupts triggered by the 8259A
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* master and slave interrupt controllers.
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*/
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#include <machine/asmacros.h>
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#include <i386/isa/icu.h>
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#ifdef PC98
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#include <pc98/pc98/pc98.h>
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#else
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#include <i386/isa/isa.h>
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#endif
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#include "assym.s"
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/*
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* Macros for interrupt interrupt entry, call to handler, and exit.
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*/
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#define INTR(irq_num, vec_name) \
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.text ; \
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SUPERALIGN_TEXT ; \
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IDTVEC(vec_name) ; \
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pushl $0 ; /* dummy error code */ \
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pushl $0 ; /* dummy trap type */ \
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pushal ; /* 8 ints */ \
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pushl %ds ; /* save data and extra segments ... */ \
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pushl %es ; \
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pushl %fs ; \
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mov %fs,%ax ; /* get current per-cpu selector */ \
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cmp $KPSEL,%ax ; /* are we already in the kernel? */ \
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je 1f ; /* skip expensive segment reloads */ \
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mov $KDSEL,%ax ; /* load kernel ds, es and fs */ \
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mov %ax,%ds ; \
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mov %ax,%es ; \
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mov $KPSEL,%ax ; \
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mov %ax,%fs ; \
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1: ; \
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FAKE_MCOUNT(13*4(%esp)) ; /* XXX late to avoid double count */ \
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pushl $irq_num; /* pass the IRQ */ \
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call atpic_handle_intr ; \
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addl $4, %esp ; /* discard the parameter */ \
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; \
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MEXITCOUNT ; \
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jmp doreti
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MCOUNT_LABEL(bintr)
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INTR(0, atpic_intr0)
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INTR(1, atpic_intr1)
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INTR(2, atpic_intr2)
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INTR(3, atpic_intr3)
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INTR(4, atpic_intr4)
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INTR(5, atpic_intr5)
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INTR(6, atpic_intr6)
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INTR(7, atpic_intr7)
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INTR(8, atpic_intr8)
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INTR(9, atpic_intr9)
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INTR(10, atpic_intr10)
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INTR(11, atpic_intr11)
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INTR(12, atpic_intr12)
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INTR(13, atpic_intr13)
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INTR(14, atpic_intr14)
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INTR(15, atpic_intr15)
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MCOUNT_LABEL(eintr)
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