cpu.h revision 184316
1139825Simp/*- 277957Sbenno * Copyright (C) 1995-1997 Wolfgang Solfrank. 377957Sbenno * Copyright (C) 1995-1997 TooLs GmbH. 477957Sbenno * All rights reserved. 577957Sbenno * 677957Sbenno * Redistribution and use in source and binary forms, with or without 777957Sbenno * modification, are permitted provided that the following conditions 877957Sbenno * are met: 977957Sbenno * 1. Redistributions of source code must retain the above copyright 1077957Sbenno * notice, this list of conditions and the following disclaimer. 1177957Sbenno * 2. Redistributions in binary form must reproduce the above copyright 1277957Sbenno * notice, this list of conditions and the following disclaimer in the 1377957Sbenno * documentation and/or other materials provided with the distribution. 1477957Sbenno * 3. All advertising materials mentioning features or use of this software 1577957Sbenno * must display the following acknowledgement: 1677957Sbenno * This product includes software developed by TooLs GmbH. 1777957Sbenno * 4. The name of TooLs GmbH may not be used to endorse or promote products 1877957Sbenno * derived from this software without specific prior written permission. 1977957Sbenno * 2077957Sbenno * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 2177957Sbenno * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2277957Sbenno * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2377957Sbenno * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2477957Sbenno * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2577957Sbenno * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 2677957Sbenno * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 2777957Sbenno * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 2877957Sbenno * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 2977957Sbenno * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3077957Sbenno * 3177957Sbenno * $NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $ 3277957Sbenno * $FreeBSD: head/sys/powerpc/include/cpu.h 184316 2008-10-27 00:26:07Z marcel $ 3377957Sbenno */ 3477957Sbenno 3577957Sbenno#ifndef _MACHINE_CPU_H_ 3677957Sbenno#define _MACHINE_CPU_H_ 3777957Sbenno 3877957Sbenno#include <machine/frame.h> 3977957Sbenno#include <machine/pcb.h> 4077957Sbenno#include <machine/psl.h> 4177957Sbenno 4291459Sbenno#define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0) 4379036Sbenno#define TRAPF_PC(frame) ((frame)->srr0) 4479036Sbenno 4577957Sbenno#define cpu_swapout(p) 4677957Sbenno#define cpu_number() 0 4777957Sbenno 4877957Sbenno/* 4977957Sbenno * CTL_MACHDEP definitions. 5077957Sbenno */ 5177957Sbenno#define CPU_CACHELINE 1 5277957Sbenno 5377957Sbennostatic __inline u_int64_t 5477957Sbennoget_cyclecount(void) 5577957Sbenno{ 56109476Sgrehan u_int32_t _upper, _lower; 57109476Sgrehan u_int64_t _time; 5877957Sbenno 5977957Sbenno __asm __volatile( 6077957Sbenno "mftb %0\n" 6177957Sbenno "mftbu %1" 62109476Sgrehan : "=r" (_lower), "=r" (_upper)); 6377957Sbenno 64109476Sgrehan _time = (u_int64_t)_upper; 65109476Sgrehan _time = (_time << 32) + _lower; 66109476Sgrehan return (_time); 6777957Sbenno} 6877957Sbenno 6983682Smp#define cpu_getstack(td) ((td)->td_frame->fixreg[1]) 70133084Smux#define cpu_spinwait() /* nothing */ 7177957Sbenno 72184316Smarcelextern char btext[]; 73184316Smarcelextern char etext[]; 74184316Smarcel 75118990Smarcelvoid cpu_halt(void); 76118990Smarcelvoid cpu_reset(void); 77118990Smarcelvoid fork_trampoline(void); 78118990Smarcelvoid swi_vm(void *); 79118990Smarcel 80118990Smarcel/* XXX the following should not be here. */ 8192842Salfredvoid savectx(struct pcb *); 8297384Sbennoint kcopy(const void *, void *, size_t); 8377957Sbenno 8477957Sbenno#endif /* _MACHINE_CPU_H_ */ 85