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


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FreeBSD/Linux Kernel Cross Reference
sys/mips/include/intr_machdep.h

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    1 /*-
    2  * Copyright (c) 2004 Juli Mallett <jmallett@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: stable/8/sys/mips/include/intr_machdep.h 215938 2010-11-27 12:26:40Z jchandra $ 
   27  */
   28 
   29 #ifndef _MACHINE_INTR_MACHDEP_H_
   30 #define _MACHINE_INTR_MACHDEP_H_
   31 
   32 #ifdef CPU_RMI
   33 #define XLR_MAX_INTR 64 
   34 #else
   35 #define NHARD_IRQS      6
   36 #define NSOFT_IRQS      2
   37 #endif
   38 
   39 struct trapframe;
   40 
   41 void cpu_init_interrupts(void);
   42 void cpu_establish_hardintr(const char *, driver_filter_t *, driver_intr_t *, 
   43     void *, int, int, void **);
   44 void cpu_establish_softintr(const char *, driver_filter_t *, void (*)(void*), 
   45     void *, int, int, void **);
   46 void cpu_intr(struct trapframe *);
   47 
   48 /*
   49  * Allow a platform to override the default hard interrupt mask and unmask
   50  * functions. The 'arg' can be cast safely to an 'int' and holds the mips
   51  * hard interrupt number to mask or unmask.
   52  */
   53 typedef void (*cpu_intr_mask_t)(void *arg);
   54 typedef void (*cpu_intr_unmask_t)(void *arg);
   55 void cpu_set_hardintr_mask_func(cpu_intr_mask_t func);
   56 void cpu_set_hardintr_unmask_func(cpu_intr_unmask_t func);
   57 
   58 /*
   59  * Opaque datatype that represents intr counter
   60  */
   61 typedef unsigned long* mips_intrcnt_t;
   62 
   63 mips_intrcnt_t mips_intrcnt_create(const char *);
   64 void mips_intrcnt_setname(mips_intrcnt_t, const char *);
   65 
   66 static __inline void
   67 mips_intrcnt_inc(mips_intrcnt_t counter)
   68 {
   69         if (counter)
   70                 atomic_add_long(counter, 1);
   71 }
   72 #endif /* !_MACHINE_INTR_MACHDEP_H_ */

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