sys/arch/mips/include/proc.h

   1 /*      $NetBSD: proc.h,v 1.24 2009/11/21 17:40:27 rmind 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.
   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  * 3. 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  *      @(#)proc.h      8.1 (Berkeley) 6/10/93
  35  */
  36
  37 #ifndef _MIPS_PROC_H_
  38 #define _MIPS_PROC_H_
  39
  40 #include <sys/param.h>
  41 #include <sys/user.h> /* for sizeof(struct user) */
  42 #include <mips/vmparam.h>
  43
  44 struct lwp;
  45
  46 /*
  47  * Machine-dependent part of the lwp structure for MIPS
  48  */
  49 struct frame;
  50
  51 struct mdlwp {
  52         struct frame *md_regs;          /* registers on current frame */
  53         int     md_flags;               /* machine-dependent flags */
  54         vaddr_t md_ss_addr;             /* single step address for ptrace */
  55         int     md_ss_instr;            /* single step instruction for ptrace */
  56         volatile int md_astpending;     /* AST pending on return to userland */
  57 #if USPACE > PAGE_SIZE
  58         int     md_upte[UPAGES];        /* ptes for mapping u page */
  59 #endif
  60 };
  61
  62 struct mdproc {
  63                                         /* syscall entry for this process */
  64         void    (*md_syscall)(struct lwp *, u_int, u_int, vaddr_t);
  65         int     md_abi;                 /* which ABI is this process using? */
  66 };
  67
  68 /* md_flags */
  69 #define MDP_FPUSED      0x0001  /* floating point coprocessor used */
  70
  71 /*
  72  * MIPS trapframe
  73  */
  74 struct frame {
  75         mips_reg_t f_regs[38];
  76         u_int32_t f_ppl;        /* previous priority level */
  77         mips_reg_t f_pad;       /* for quadword alignment */
  78 };
  79
  80 #ifdef _KERNEL
  81 /* kernel single-step emulation */
  82 int mips_singlestep(struct lwp *l);
  83 #endif /* _KERNEL */
  84
  85 #endif /* _MIPS_PROC_H_ */