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proc.h revision 1.8.4.1 
      1 /*	$NetBSD: proc.h,v 1.8.4.1 2011/03/05 20:51:37 rmind Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
      5  * Copyright (C) 1995, 1996 TooLs GmbH.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by TooLs GmbH.
     19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _POWERPC_PROC_H_
     35 #define _POWERPC_PROC_H_
     36 
     37 /*
     38  * Machine-dependent part of the lwp structure
     39  */
     40 struct mdlwp {
     41 	volatile int md_flags;
     42 	struct cpu_info * volatile md_fpucpu;	/* last cpu FP was used on */
     43 	struct cpu_info * volatile md_veccpu;	/* last cpu VEC was used on */
     44 	struct trapframe *md_utf;		/* user trampframe */
     45 };
     46 #define MDLWP_USEDFPU	0x0001	/* this thread has used the FPU */
     47 #define MDLWP_OWNFPU	0x0002	/* this thread is using the FPU */
     48 #define	MDLWP_USEDVEC	0x0010	/* this thread has used the VEC */
     49 #define	MDLWP_OWNVEC	0x0020	/* this thread is using the VEC */
     50 
     51 struct trapframe;
     52 
     53 struct mdproc {
     54 	void (*md_syscall)(struct trapframe *);
     55 };
     56 
     57 #ifdef _KERNEL
     58 #define	LWP0_CPU_INFO	&cpu_info[0]
     59 #define	LWP0_MD_INITIALIZER {	\
     60 		.md_flags = 0, \
     61 		.md_fpucpu = LWP0_CPU_INFO, \
     62 		.md_veccpu = LWP0_CPU_INFO, \
     63 		.md_utf = (void *)0xdeadbeef, \
     64 	}
     65 #endif /* _KERNEL */
     66 
     67 #endif /* _POWERPC_PROC_H_ */
     68