The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/arm/sa11x0/sa11x0_irqhandler.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: sa11x0_irqhandler.c,v 1.5 2003/08/07 16:26:54 agc Exp $        */
    2 
    3 /*-
    4  * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to the NetBSD Foundation
    8  * by IWAMOTO Toshihiro.
    9  *
   10  * This code is derived from software contributed to The NetBSD Foundation
   11  * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
   12  * Simulation Facility, NASA Ames Research Center.
   13  *
   14  * Redistribution and use in source and binary forms, with or without
   15  * modification, are permitted provided that the following conditions
   16  * are met:
   17  * 1. Redistributions of source code must retain the above copyright
   18  *    notice, this list of conditions and the following disclaimer.
   19  * 2. Redistributions in binary form must reproduce the above copyright
   20  *    notice, this list of conditions and the following disclaimer in the
   21  *    documentation and/or other materials provided with the distribution.
   22  * 3. All advertising materials mentioning features or use of this software
   23  *    must display the following acknowledgement:
   24  *      This product includes software developed by the NetBSD
   25  *      Foundation, Inc. and its contributors.
   26  * 4. Neither the name of The NetBSD Foundation nor the names of its
   27  *    contributors may be used to endorse or promote products derived
   28  *    from this software without specific prior written permission.
   29  *
   30  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   31  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   32  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   33  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   34  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   35  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   36  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   37  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   38  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   39  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   40  * POSSIBILITY OF SUCH DAMAGE.
   41  */
   42 
   43 /*-
   44  * Copyright (c) 1991 The Regents of the University of California.
   45  * All rights reserved.
   46  *
   47  * This code is derived from software contributed to Berkeley by
   48  * William Jolitz.
   49  *
   50  * Redistribution and use in source and binary forms, with or without
   51  * modification, are permitted provided that the following conditions
   52  * are met:
   53  * 1. Redistributions of source code must retain the above copyright
   54  *    notice, this list of conditions and the following disclaimer.
   55  * 2. Redistributions in binary form must reproduce the above copyright
   56  *    notice, this list of conditions and the following disclaimer in the
   57  *    documentation and/or other materials provided with the distribution.
   58  * 3. Neither the name of the University nor the names of its contributors
   59  *    may be used to endorse or promote products derived from this software
   60  *    without specific prior written permission.
   61  *
   62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   72  * SUCH DAMAGE.
   73  *
   74  *      @(#)isa.c       7.2 (Berkeley) 5/13/91
   75  */
   76 
   77 
   78 #include <sys/cdefs.h>
   79 __FBSDID("$FreeBSD$");
   80 
   81 #include <sys/param.h>
   82 #include <sys/kernel.h>
   83 #include <sys/systm.h>
   84 #include <sys/syslog.h>
   85 #include <sys/malloc.h>
   86 #include <sys/bus.h>
   87 #include <sys/interrupt.h>
   88 #include <sys/rman.h>
   89 
   90 #include <vm/vm.h>
   91 #include <vm/vm_extern.h>
   92 
   93 #include <arm/sa11x0/sa11x0_reg.h>
   94 #include <arm/sa11x0/sa11x0_var.h>
   95 
   96 #include <machine/cpu.h>
   97 #include <machine/intr.h>
   98 
   99 #define NIRQS 0x20
  100 struct intrhand *irqhandlers[NIRQS];
  101 
  102 int current_intr_depth;
  103 extern struct sa11x0_softc *sa11x0_softc;
  104 
  105 
  106 static uint32_t sa11x0_irq_mask = 0xfffffff;
  107 
  108 extern vm_offset_t saipic_base;
  109 
  110 int
  111 arm_get_next_irq()
  112 {
  113         int irq;
  114 
  115         if ((irq = (bus_space_read_4(sa11x0_softc->sc_iot, sa11x0_softc->sc_ioh,
  116             SAIPIC_IP) &
  117             sa11x0_irq_mask)) != 0)
  118                 return (ffs(irq) - 1);
  119         return (-1);
  120 }
  121 
  122 void
  123 arm_mask_irq(uintptr_t irq)
  124 {
  125 
  126         sa11x0_irq_mask &= ~(1 << irq);
  127         __asm __volatile("str   %0, [%1, #0x04]" /* SAIPIC_MR */
  128             : : "r" (sa11x0_irq_mask), "r" (saipic_base));
  129 }
  130 
  131 void
  132 arm_unmask_irq(uintptr_t irq)
  133 {
  134 
  135         sa11x0_irq_mask |= (1 << irq);
  136         __asm __volatile("str   %0, [%1, #0x04]" /* SAIPIC_MR */
  137             : : "r" (sa11x0_irq_mask), "r" (saipic_base));
  138 }
  139 
  140 void stray_irqhandler(void *);
  141 
  142 
  143 
  144 void
  145 stray_irqhandler(void *p)
  146 {
  147 
  148         printf("stray interrupt %p\n", p);
  149 }
  150 /* End of irqhandler.c */

Cache object: a03d671996f1e08d7ce0f5a852d11ed8


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.