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proc.h revision 1.16 
      1 /*	$NetBSD: proc.h,v 1.16 2003/01/17 23:36:09 thorpej 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. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)proc.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #ifndef _MIPS_PROC_H_
     42 #define _MIPS_PROC_H_
     43 
     44 #include <sys/param.h>
     45 
     46 struct lwp;
     47 
     48 /*
     49  * Machine-dependent part of the proc structure for MIPS
     50  */
     51 
     52 struct mdlwp {
     53 	void	*md_regs;		/* registers on current frame */
     54 	int	md_flags;		/* machine-dependent flags */
     55 	int	md_upte[UPAGES];	/* ptes for mapping u page */
     56 	vaddr_t	md_ss_addr;		/* single step address for ptrace */
     57 	int	md_ss_instr;		/* single step instruction for ptrace */
     58 };
     59 
     60 struct mdproc {
     61 	__volatile int md_astpending;	/* AST pending on return to userland */
     62 					/* syscall entry for this process */
     63 	void	(*md_syscall)(struct lwp *, u_int, u_int, u_int);
     64 };
     65 
     66 /* md_flags */
     67 #define	MDP_FPUSED	0x0001	/* floating point coprocessor used */
     68 
     69 /*
     70  * MIPS trapframe
     71  */
     72 struct frame {
     73 	mips_reg_t f_regs[38];
     74 	u_int32_t f_ppl;	/* previous priority level */
     75 	int32_t f_pad;		/* for 8 byte aligned */
     76 };
     77 
     78 #ifdef _KERNEL
     79 /* kernel single-step emulation */
     80 int mips_singlestep(struct lwp *l);
     81 #endif /* _KERNEL */
     82 
     83 #endif /* _MIPS_PROC_H_ */
     84