1 /* $NetBSD: proc.h,v 1.20 2020/12/06 02:23:12 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)proc.h 8.1 (Berkeley) 6/11/93 41 */ 42 43 #ifndef _SPARC_PROC_H_ 44 #define _SPARC_PROC_H_ 45 46 /* 47 * Machine-dependent parts of the lwp and proc structures for SPARC. 48 */ 49 struct mdlwp { 50 struct trapframe *md_tf; /* trap/syscall registers */ 51 struct fpstate *md_fpstate; /* fpu state, if any; always resident */ 52 struct cpu_info *md_fpu; /* Module holding FPU state */ 53 }; 54 55 struct mdproc { 56 void (*md_syscall)(__register_t, struct trapframe *, __register_t); 57 u_long md_flags; 58 }; 59 60 /* md_flags */ 61 #define MDP_FIXALIGN 0x1 /* Fix unaligned memory accesses */ 62 63 64 #ifdef _KERNEL 65 /* 66 * FPU context switch lock 67 * Prevent interrupts that grab the kernel lock 68 * XXX mrg: remove (s) argument 69 */ 70 extern kmutex_t fpu_mtx; 71 72 #define FPU_LOCK(s) do { \ 73 (void)&(s); \ 74 mutex_enter(&fpu_mtx); \ 75 } while (/* CONSTCOND */ 0) 76 77 #define FPU_UNLOCK(s) do { \ 78 mutex_exit(&fpu_mtx); \ 79 } while (/* CONSTCOND */ 0) 80 #endif 81 82 #endif /* _SPARC_PROC_H_ */ 83