1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 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 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: @(#)cpu.h 5.4 (Berkeley) 5/9/91 33 * from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29 34 * $FreeBSD$ 35 */ 36 37#ifndef _MACHINE_CPU_H_ 38#define _MACHINE_CPU_H_ 39 40#include <machine/frame.h> 41#include <machine/tstate.h> 42 43#define TRAPF_PC(tfp) ((tfp)->tf_tpc) 44#define TRAPF_USERMODE(tfp) (((tfp)->tf_tstate & TSTATE_PRIV) == 0) 45 46#define cpu_getstack(td) ((td)->td_frame->tf_sp) 47#define cpu_setstack(td, sp) ((td)->td_frame->tf_sp = (sp)) 48#define cpu_spinwait() /* nothing */ 49 50#ifdef _KERNEL 51 52extern char btext[]; 53extern char etext[]; 54 55void cheetah_init(u_int cpu_impl); 56void cpu_halt(void) __dead2; 57void cpu_reset(void) __dead2; 58void fork_trampoline(void); 59void swi_vm(void *v); 60void zeus_init(u_int cpu_impl); 61 62static __inline u_int64_t 63get_cyclecount(void) 64{ 65 66 return (rd(tick)); 67} 68 69#endif 70 71#endif /* !_MACHINE_CPU_H_ */ 72