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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_ */