1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * from: @(#)cpu.h 5.4 (Berkeley) 5/9/91 35 * from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29 36 * $FreeBSD$ 37 */ 38 39 #ifndef _MACHINE_CPU_H_ 40 #define _MACHINE_CPU_H_ 41 42 #include <machine/frame.h> 43 #include <machine/tstate.h> 44 45 #define TRAPF_PC(tfp) ((tfp)->tf_tpc) 46 #define TRAPF_USERMODE(tfp) (((tfp)->tf_tstate & TSTATE_PRIV) == 0) 47 48 #define cpu_getstack(td) ((td)->td_frame->tf_sp) 49 #define cpu_setstack(td, sp) ((td)->td_frame->tf_sp = (sp)) 50 #define cpu_spinwait() /* nothing */ 51 52 #ifdef _KERNEL 53 54 extern char btext[]; 55 extern char etext[]; 56 57 void cheetah_init(u_int cpu_impl); 58 void cpu_halt(void) __dead2; 59 void cpu_reset(void) __dead2; 60 void fork_trampoline(void); 61 void swi_vm(void *v); 62 void zeus_init(u_int cpu_impl); 63 64 static __inline u_int64_t 65 get_cyclecount(void) 66 { 67 68 return (rd(tick)); 69 } 70 71 #endif 72 73 #endif /* !_MACHINE_CPU_H_ */ 74