1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (C) 1995-1997 Wolfgang Solfrank. 5 * Copyright (C) 1995-1997 TooLs GmbH. 6 * All rights reserved. 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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $ 34 * $FreeBSD$ 35 */ 36 37 #ifndef _MACHINE_CPU_H_ 38 #define _MACHINE_CPU_H_ 39 40 #include <machine/frame.h> 41 #include <machine/pcb.h> 42 #include <machine/psl.h> 43 44 /* 45 * CPU Feature Attributes 46 * 47 * These are defined in the PowerPC ELF ABI for the AT_HWCAP vector, 48 * and are exported to userland via the machdep.cpu_features 49 * sysctl. 50 */ 51 52 extern u_long cpu_features; 53 extern u_long cpu_features2; 54 55 #define PPC_FEATURE_32 0x80000000 /* Always true */ 56 #define PPC_FEATURE_64 0x40000000 /* Defined on a 64-bit CPU */ 57 #define PPC_FEATURE_601_INSTR 0x20000000 /* Defined on a 64-bit CPU */ 58 #define PPC_FEATURE_HAS_ALTIVEC 0x10000000 59 #define PPC_FEATURE_HAS_FPU 0x08000000 60 #define PPC_FEATURE_HAS_MMU 0x04000000 61 #define PPC_FEATURE_UNIFIED_CACHE 0x01000000 62 #define PPC_FEATURE_HAS_SPE 0x00800000 63 #define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000 64 #define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000 65 #define PPC_FEATURE_NO_TB 0x00100000 66 #define PPC_FEATURE_POWER4 0x00080000 67 #define PPC_FEATURE_POWER5 0x00040000 68 #define PPC_FEATURE_POWER5_PLUS 0x00020000 69 #define PPC_FEATURE_CELL 0x00010000 70 #define PPC_FEATURE_BOOKE 0x00008000 71 #define PPC_FEATURE_SMT 0x00004000 72 #define PPC_FEATURE_ICACHE_SNOOP 0x00002000 73 #define PPC_FEATURE_ARCH_2_05 0x00001000 74 #define PPC_FEATURE_HAS_DFP 0x00000400 75 #define PPC_FEATURE_POWER6_EXT 0x00000200 76 #define PPC_FEATURE_ARCH_2_06 0x00000100 77 #define PPC_FEATURE_HAS_VSX 0x00000080 78 #define PPC_FEATURE_TRUE_LE 0x00000002 79 #define PPC_FEATURE_PPC_LE 0x00000001 80 81 #define PPC_FEATURE2_ARCH_2_07 0x80000000 82 #define PPC_FEATURE2_HTM 0x40000000 83 #define PPC_FEATURE2_DSCR 0x20000000 84 #define PPC_FEATURE2_EBB 0x10000000 85 #define PPC_FEATURE2_ISEL 0x08000000 86 #define PPC_FEATURE2_TAR 0x04000000 87 #define PPC_FEATURE2_HAS_VEC_CRYPTO 0x02000000 88 #define PPC_FEATURE2_HTM_NOSC 0x01000000 89 #define PPC_FEATURE2_ARCH_3_00 0x00800000 90 #define PPC_FEATURE2_HAS_IEEE128 0x00400000 91 #define PPC_FEATURE2_DARN 0x00200000 92 #define PPC_FEATURE2_SCV 0x00100000 93 #define PPC_FEATURE2_HTM_NOSUSPEND 0x00080000 94 95 #define PPC_FEATURE_BITMASK \ 96 "\20" \ 97 "\040PPC32\037PPC64\036PPC601\035ALTIVEC\034FPU\033MMU\031UNIFIEDCACHE" \ 98 "\030SPE\027SPESFP\026DPESFP\025NOTB\024POWER4\023POWER5\022P5PLUS\021CELL"\ 99 "\020BOOKE\017SMT\016ISNOOP\015ARCH205\013DFP\011ARCH206\010VSX"\ 100 "\002TRUELE\001PPCLE" 101 #define PPC_FEATURE2_BITMASK \ 102 "\20" \ 103 "\040ARCH207\037HTM\036DSCR\034ISEL\033TAR\032VCRYPTO\031HTMNOSC" \ 104 "\030ARCH300\027IEEE128\026DARN\025SCV\024HTMNOSUSP" 105 106 #define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0) 107 #define TRAPF_PC(frame) ((frame)->srr0) 108 109 /* 110 * CTL_MACHDEP definitions. 111 */ 112 #define CPU_CACHELINE 1 113 114 static __inline u_int64_t 115 get_cyclecount(void) 116 { 117 u_int32_t _upper, _lower; 118 u_int64_t _time; 119 120 __asm __volatile( 121 "mftb %0\n" 122 "mftbu %1" 123 : "=r" (_lower), "=r" (_upper)); 124 125 _time = (u_int64_t)_upper; 126 _time = (_time << 32) + _lower; 127 return (_time); 128 } 129 130 #define cpu_getstack(td) ((td)->td_frame->fixreg[1]) 131 #define cpu_spinwait() __asm __volatile("or 27,27,27") /* yield */ 132 #define cpu_lock_delay() DELAY(1) 133 134 extern char btext[]; 135 extern char etext[]; 136 137 struct thread; 138 139 #ifdef __powerpc64__ 140 extern void enter_idle_powerx(void); 141 extern uint64_t can_wakeup; 142 extern register_t lpcr; 143 #endif 144 145 void cpu_halt(void); 146 void cpu_reset(void); 147 void flush_disable_caches(void); 148 void fork_trampoline(void); 149 int cpu_machine_check(struct thread *, struct trapframe *, int *); 150 151 152 #ifndef __powerpc64__ 153 void mpc745x_sleep(void); 154 #endif 155 156 #endif /* _MACHINE_CPU_H_ */ 157