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proc.h revision 1.25 
      1 /*	$NetBSD: proc.h,v 1.25 2009/12/14 00:46:05 matt 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_ */
     86