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/cpu.h

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    1 /*      $OpenBSD: cpu.h,v 1.4 1998/09/15 10:50:12 pefo Exp $    */
    2 
    3 /*-
    4  * Copyright (c) 1992, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * This code is derived from software contributed to Berkeley by
    8  * Ralph Campbell and Rick Macklem.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 4. Neither the name of the University nor the names of its contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  *      Copyright (C) 1989 Digital Equipment Corporation.
   35  *      Permission to use, copy, modify, and distribute this software and
   36  *      its documentation for any purpose and without fee is hereby granted,
   37  *      provided that the above copyright notice appears in all copies.
   38  *      Digital Equipment Corporation makes no representations about the
   39  *      suitability of this software for any purpose.  It is provided "as is"
   40  *      without express or implied warranty.
   41  *
   42  *      from: @(#)cpu.h 8.4 (Berkeley) 1/4/94
   43  *      JNPR: cpu.h,v 1.9.2.2 2007/09/10 08:23:46 girish
   44  * $FreeBSD: releng/8.4/sys/mips/include/cpu.h 215938 2010-11-27 12:26:40Z jchandra $
   45  */
   46 
   47 #ifndef _MACHINE_CPU_H_
   48 #define _MACHINE_CPU_H_
   49 
   50 #include <machine/endian.h>
   51 
   52 /* BEGIN: these are going away */
   53 
   54 #define SR_KSU_MASK             0x00000018
   55 #define SR_KSU_USER             0x00000010
   56 #define SR_KSU_SUPER            0x00000008
   57 #define SR_KSU_KERNEL           0x00000000
   58 
   59 #define soft_int_mask(softintr) (1 << ((softintr) + 8))
   60 #define hard_int_mask(hardintr) (1 << ((hardintr) + 10))
   61 
   62 /* END: These are going away */
   63 
   64 /*
   65  * Exported definitions unique to mips cpu support.
   66  */
   67 
   68 #ifndef _LOCORE
   69 #include <machine/cpufunc.h>
   70 #include <machine/frame.h>
   71 
   72 #define TRAPF_USERMODE(framep)  (((framep)->sr & SR_KSU_USER) != 0)
   73 #define TRAPF_PC(framep)        ((framep)->pc)
   74 #define cpu_getstack(td)        ((td)->td_frame->sp)
   75 #define cpu_setstack(td, nsp)   ((td)->td_frame->sp = (nsp))
   76 #define cpu_spinwait()          /* nothing */
   77 
   78 /*
   79  * A machine-independent interface to the CPU's counter.
   80  */
   81 #define get_cyclecount()        mips_rd_count()
   82 #endif                          /* !_LOCORE */
   83 
   84 #if defined(_KERNEL) && !defined(_LOCORE)
   85 
   86 extern char btext[];
   87 extern char etext[];
   88 
   89 void swi_vm(void *);
   90 void cpu_halt(void);
   91 void cpu_reset(void);
   92 
   93 #endif                          /* _KERNEL */
   94 #endif                          /* !_MACHINE_CPU_H_ */

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