Annotation of sys/arch/hppa/include/pcb.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pcb.h,v 1.11 2007/07/29 20:15:56 kettenis Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1999-2004 Michael Shalayeff
! 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: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 19: * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
! 20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
! 21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
! 22: * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
! 24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
! 25: * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
! 26: * THE POSSIBILITY OF SUCH DAMAGE.
! 27: */
! 28:
! 29:
! 30: #ifndef _MACHINE_PCB_H_
! 31: #define _MACHINE_PCB_H_
! 32:
! 33: #include <machine/reg.h>
! 34:
! 35: struct pcb {
! 36: u_int64_t pcb_fpregs[HPPA_NFPREGS+1]; /* not in the trapframe */
! 37: vaddr_t pcb_uva; /* KVA for U-area */
! 38:
! 39: /*
! 40: * The members above are primarily accessed by there physical
! 41: * address, wheras the members below are accessed exclusively
! 42: * by there virtual address. Unfortunately this structure
! 43: * ends up being non-equivalently mapped, which will cause
! 44: * data corruption if those members share a cache line. Since
! 45: * the maximum cache line size is 64 bytes, adding 64 bytes of
! 46: * padding makes sure that will never happen.
! 47: */
! 48: u_char pcb_pad[64];
! 49:
! 50: u_int pcb_ksp; /* kernel sp for ctxsw */
! 51: u_int pcb_onfault; /* SW copy fault handler */
! 52: pa_space_t pcb_space; /* copy pmap_space, for asm's sake */
! 53:
! 54: /* things used for hpux emulation */
! 55: void *pcb_sigreturn;
! 56: u_int pcb_srcookie;
! 57: u_int pcb_sclen;
! 58: };
! 59:
! 60: struct md_coredump {
! 61: struct reg md_reg;
! 62: struct fpreg md_fpreg;
! 63: };
! 64:
! 65:
! 66: #endif /* _MACHINE_PCB_H_ */
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