atpic_vector.s

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    1 /*-
    2  * Copyright (c) 1989, 1990 William F. Jolitz.
    3  * Copyright (c) 1990 The Regents of the University of California.
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 4. Neither the name of the University nor the names of its contributors
   15  *    may be used to endorse or promote products derived from this software
   16  *    without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  *      from: vector.s, 386BSD 0.1 unknown origin
   31  * $FreeBSD: releng/6.2/sys/i386/isa/atpic_vector.s 129742 2004-05-26 07:43:41Z bde $
   32  */
   33 
   34 /*
   35  * Interrupt entry points for external interrupts triggered by the 8259A
   36  * master and slave interrupt controllers.
   37  */
   38 
   39 #include <machine/asmacros.h>
   40 
   41 #include "assym.s"
   42 
   43 /*
   44  * Macros for interrupt interrupt entry, call to handler, and exit.
   45  */
   46 #define INTR(irq_num, vec_name) \
   47         .text ;                                                         \
   48         SUPERALIGN_TEXT ;                                               \
   49 IDTVEC(vec_name) ;                                                      \
   50         pushl   $0 ;            /* dummy error code */                  \
   51         pushl   $0 ;            /* dummy trap type */                   \
   52         pushal ;                /* 8 ints */                            \
   53         pushl   %ds ;           /* save data and extra segments ... */  \
   54         pushl   %es ;                                                   \
   55         pushl   %fs ;                                                   \
   56         movl    $KDSEL, %eax ;  /* reload with kernel's data segment */ \
   57         movl    %eax, %ds ;                                             \
   58         movl    %eax, %es ;                                             \
   59         movl    $KPSEL, %eax ;  /* reload with per-CPU data segment */  \
   60         movl    %eax, %fs ;                                             \
   61 ;                                                                       \
   62         FAKE_MCOUNT(TF_EIP(%esp)) ;                                     \
   63         pushl   $irq_num;       /* pass the IRQ */                      \
   64         call    atpic_handle_intr ;                                     \
   65         addl    $4, %esp ;      /* discard the parameter */             \
   66 ;                                                                       \
   67         MEXITCOUNT ;                                                    \
   68         jmp     doreti
   69 
   70         INTR(0, atpic_intr0)
   71         INTR(1, atpic_intr1)
   72         INTR(2, atpic_intr2)
   73         INTR(3, atpic_intr3)
   74         INTR(4, atpic_intr4)
   75         INTR(5, atpic_intr5)
   76         INTR(6, atpic_intr6)
   77         INTR(7, atpic_intr7)
   78         INTR(8, atpic_intr8)
   79         INTR(9, atpic_intr9)
   80         INTR(10, atpic_intr10)
   81         INTR(11, atpic_intr11)
   82         INTR(12, atpic_intr12)
   83         INTR(13, atpic_intr13)
   84         INTR(14, atpic_intr14)
   85         INTR(15, atpic_intr15)

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FreeBSD/Linux Kernel Cross Reference sys/i386/isa/atpic_vector.s

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sys/i386/isa/atpic_vector.s