1 /* $NetBSD: pcb.h,v 1.3 2017/04/08 18:04:34 scole Exp $ */ 2 3 /*- 4 * Copyright (c) 2003,2004 Marcel Moolenaar 5 * Copyright (c) 2000 Doug Rabson 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sys/ia64/include/pcb.h,v 1.16 2004/08/16 19:05:08 marcel Exp $ 30 */ 31 32 #ifndef _IA64_PCB_H_ 33 #define _IA64_PCB_H_ 34 35 #include <machine/_regset.h> 36 #include <sys/lock.h> 37 38 /* 39 * PCB: process control block 40 */ 41 struct pmap; 42 struct pcb { 43 struct _special pcb_special; 44 struct _callee_saved pcb_preserved; 45 struct _callee_saved_fp pcb_preserved_fp; 46 struct _high_fp pcb_high_fp; 47 struct pcpu *pcb_fpcpu; 48 kmutex_t pcb_fpcpu_slock; 49 50 51 /* IA32 specific registers. */ 52 uint64_t pcb_ia32_cflg; 53 uint64_t pcb_ia32_eflag; 54 uint64_t pcb_ia32_fcr; 55 uint64_t pcb_ia32_fdr; 56 uint64_t pcb_ia32_fir; 57 uint64_t pcb_ia32_fsr; 58 59 uint64_t pcb_onfault; /* for copy faults */ 60 // struct pmap *pcb_current_pmap; 61 }; 62 63 #ifdef _KERNEL 64 65 #define savectx(p) swapctx(p, NULL) 66 67 struct trapframe; 68 69 void makectx(struct trapframe *, struct pcb *); 70 /* XXX not sure about the attributes, for now use equivalent to freebsd */ 71 void restorectx(struct pcb *) __attribute__ ((__noreturn__)); /* same as __dead2? */ 72 int swapctx(struct pcb *old, struct pcb *new) __returns_twice; 73 74 void ia32_restorectx(struct pcb *); 75 void ia32_savectx(struct pcb *); 76 77 #endif 78 79 #endif /* _IA64_PCB_H_ */ 80