sys/arch/powerpc/include/pcb.h

   1 /*      $NetBSD: pcb.h,v 1.20 2005/12/11 12:18:43 christos 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 #ifndef _POWERPC_PCB_H_
  34 #define _POWERPC_PCB_H_
  35
  36 #include <powerpc/reg.h>
  37
  38 struct faultbuf {
  39         register_t fb_pc;               /* PC */
  40         register_t fb_sp;               /* R1 */
  41         register_t fb_r2;               /* R2 (why?) */
  42         register_t fb_cr;               /* CR */
  43         register_t fb_fixreg[19];       /* R13-R31 */
  44 };
  45
  46 struct pcb {
  47         struct pmap *pcb_pm;    /* pmap of our vmspace */
  48         register_t pcb_sp;      /* saved SP */
  49         int pcb_flags;
  50 #define PCB_OWNFPU      1       /* Process owns FPU resources */
  51 #define PCB_OWNALTIVEC  2       /* Process owns AltiVec resources */
  52 #define PCB_FPU         4       /* Process had FPU initialized */
  53 #define PCB_ALTIVEC     8       /* Process had AltiVec initialized */
  54 #define PCB_FE1         PSL_FE1 /* 0x100 */
  55 #define PCB_FE0         PSL_FE0 /* 0x800 */
  56         struct cpu_info * volatile pcb_fpcpu; /* CPU with our FP state */
  57         struct cpu_info * volatile pcb_veccpu;/* CPU with our VECTOR state */
  58         struct faultbuf *pcb_onfault;   /* For use during copyin/copyout */
  59         vaddr_t pcb_kmapsr;     /* where to map user segment in kernel */
  60         vaddr_t pcb_umapsr;     /* the user segment mapped in kernel */
  61         struct fpreg pcb_fpu;   /* Floating point processor */
  62         struct vreg pcb_vr __attribute__((aligned(16)));
  63 };
  64
  65 struct md_coredump {
  66         struct trapframe frame;
  67         struct fpreg fpstate;
  68         struct vreg vstate;
  69 };
  70
  71 #ifdef _KERNEL
  72 int setfault(struct faultbuf *);
  73 #endif
  74
  75 #endif  /* _POWERPC_PCB_H_ */