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      1 /*	$NetBSD: proc.h,v 1.25 2020/06/13 23:58:51 ad Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1991 Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)proc.h	7.1 (Berkeley) 5/15/91
     32  */
     33 
     34 #ifndef _AMD64_PROC_H
     35 #define _AMD64_PROC_H
     36 
     37 #ifdef __x86_64__
     38 
     39 #include <machine/frame.h>
     40 #include <machine/pcb.h>
     41 
     42 /*
     43  * Machine-dependent part of the lwp structure for amd64.
     44  */
     45 struct pmap;
     46 struct vm_page;
     47 
     48 struct mdlwp {
     49 	volatile uint64_t md_tsc;	/* last TSC reading */
     50 	struct	trapframe *md_regs;	/* registers on current frame */
     51 	int	md_flags;		/* machine-dependent flags */
     52 	volatile int md_astpending;
     53 };
     54 
     55 #define	MDL_COMPAT32		0x0008	/* i386, always return via iret */
     56 #define	MDL_IRET		0x0010	/* force return via iret, not sysret */
     57 #define	MDL_FPU_IN_CPU		0x0020	/* the FPU state is in the CPU */
     58 
     59 struct mdproc {
     60 	int	md_flags;
     61 					/* Syscall handling function */
     62 	void	(*md_syscall)(struct trapframe *);
     63 };
     64 
     65 /* md_flags */
     66 #define MDP_USEDMTRR	0x0008	/* has set volatile MTRRs */
     67 
     68 #else	/*	__x86_64__	*/
     69 
     70 #include <i386/proc.h>
     71 
     72 #endif	/*	__x86_64__	*/
     73 
     74 #endif /* _AMD64_PROC_H */
     75