cpu.h revision 293052
1254721Semaste/*- 2254721Semaste * Copyright (C) 1995-1997 Wolfgang Solfrank. 3254721Semaste * Copyright (C) 1995-1997 TooLs GmbH. 4254721Semaste * All rights reserved. 5254721Semaste * 6254721Semaste * Redistribution and use in source and binary forms, with or without 7254721Semaste * modification, are permitted provided that the following conditions 8254721Semaste * are met: 9254721Semaste * 1. Redistributions of source code must retain the above copyright 10254721Semaste * notice, this list of conditions and the following disclaimer. 11254721Semaste * 2. Redistributions in binary form must reproduce the above copyright 12254721Semaste * notice, this list of conditions and the following disclaimer in the 13254721Semaste * documentation and/or other materials provided with the distribution. 14254721Semaste * 3. All advertising materials mentioning features or use of this software 15254721Semaste * must display the following acknowledgement: 16254721Semaste * This product includes software developed by TooLs GmbH. 17254721Semaste * 4. The name of TooLs GmbH may not be used to endorse or promote products 18254721Semaste * derived from this software without specific prior written permission. 19254721Semaste * 20254721Semaste * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 21254721Semaste * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22254721Semaste * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23254721Semaste * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24254721Semaste * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25254721Semaste * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26254721Semaste * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27254721Semaste * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28254721Semaste * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29254721Semaste * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30254721Semaste * 31254721Semaste * $NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $ 32254721Semaste * $FreeBSD: head/sys/powerpc/include/cpu.h 293052 2016-01-02 18:15:10Z nwhitehorn $ 33263363Semaste */ 34254721Semaste 35254721Semaste#ifndef _MACHINE_CPU_H_ 36254721Semaste#define _MACHINE_CPU_H_ 37254721Semaste 38254721Semaste#include <machine/frame.h> 39254721Semaste#include <machine/pcb.h> 40254721Semaste#include <machine/psl.h> 41254721Semaste 42254721Semaste/* 43254721Semaste * CPU Feature Attributes 44254721Semaste * 45254721Semaste * These are defined in the PowerPC ELF ABI for the AT_HWCAP vector, 46263363Semaste * and are exported to userland via the machdep.cpu_features 47254721Semaste * sysctl. 48254721Semaste */ 49254721Semaste 50254721Semasteextern int cpu_features; 51254721Semasteextern int cpu_features2; 52254721Semaste 53254721Semaste#define PPC_FEATURE_32 0x80000000 /* Always true */ 54254721Semaste#define PPC_FEATURE_64 0x40000000 /* Defined on a 64-bit CPU */ 55254721Semaste#define PPC_FEATURE_HAS_ALTIVEC 0x10000000 56254721Semaste#define PPC_FEATURE_HAS_FPU 0x08000000 57254721Semaste#define PPC_FEATURE_HAS_MMU 0x04000000 58#define PPC_FEATURE_UNIFIED_CACHE 0x01000000 59#define PPC_FEATURE_BOOKE 0x00008000 60#define PPC_FEATURE_SMT 0x00004000 61#define PPC_FEATURE_ARCH_2_05 0x00001000 62#define PPC_FEATURE_HAS_DFP 0x00000400 63#define PPC_FEATURE_ARCH_2_06 0x00000100 64#define PPC_FEATURE_HAS_VSX 0x00000080 65 66#define PPC_FEATURE2_ARCH_2_07 0x80000000 67#define PPC_FEATURE2_HAS_HTM 0x40000000 68#define PPC_FEATURE2_HAS_VCRYPTO 0x02000000 69 70#define PPC_FEATURE_BITMASK \ 71 "\20" \ 72 "\040PPC32\037PPC64\035ALTIVEC\034FPU\033MMU\031UNIFIEDCACHE" \ 73 "\020BOOKE\017SMT\015ARCH205\013DFP\011ARCH206\010VSX" 74#define PPC_FEATURE2_BITMASK \ 75 "\20" \ 76 "\040ARCH207\037HTM\032VCRYPTO" 77 78#define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0) 79#define TRAPF_PC(frame) ((frame)->srr0) 80 81/* 82 * CTL_MACHDEP definitions. 83 */ 84#define CPU_CACHELINE 1 85 86static __inline u_int64_t 87get_cyclecount(void) 88{ 89 u_int32_t _upper, _lower; 90 u_int64_t _time; 91 92 __asm __volatile( 93 "mftb %0\n" 94 "mftbu %1" 95 : "=r" (_lower), "=r" (_upper)); 96 97 _time = (u_int64_t)_upper; 98 _time = (_time << 32) + _lower; 99 return (_time); 100} 101 102#define cpu_getstack(td) ((td)->td_frame->fixreg[1]) 103#define cpu_spinwait() __asm __volatile("or 27,27,27") /* yield */ 104 105extern char btext[]; 106extern char etext[]; 107 108void cpu_halt(void); 109void cpu_reset(void); 110void cpu_sleep(void); 111void flush_disable_caches(void); 112void fork_trampoline(void); 113void swi_vm(void *); 114 115#endif /* _MACHINE_CPU_H_ */ 116