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 int cpu_features; 53 extern int 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_HAS_ALTIVEC 0x10000000 58 #define PPC_FEATURE_HAS_FPU 0x08000000 59 #define PPC_FEATURE_HAS_MMU 0x04000000 60 #define PPC_FEATURE_UNIFIED_CACHE 0x01000000 61 #define PPC_FEATURE_HAS_SPE 0x00800000 62 #define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000 63 #define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000 64 #define PPC_FEATURE_BOOKE 0x00008000 65 #define PPC_FEATURE_SMT 0x00004000 66 #define PPC_FEATURE_ARCH_2_05 0x00001000 67 #define PPC_FEATURE_HAS_DFP 0x00000400 68 #define PPC_FEATURE_ARCH_2_06 0x00000100 69 #define PPC_FEATURE_HAS_VSX 0x00000080 70 71 #define PPC_FEATURE2_ARCH_2_07 0x80000000 72 #define PPC_FEATURE2_HAS_HTM 0x40000000 73 #define PPC_FEATURE2_ISEL 0x08000000 74 #define PPC_FEATURE2_HAS_VCRYPTO 0x02000000 75 76 #define PPC_FEATURE_BITMASK \ 77 "\20" \ 78 "\040PPC32\037PPC64\035ALTIVEC\034FPU\033MMU\031UNIFIEDCACHE" \ 79 "\030SPE\027SPESFP\026DPESFP\020BOOKE\017SMT\015ARCH205\013DFP" \ 80 "\011ARCH206\010VSX" 81 #define PPC_FEATURE2_BITMASK \ 82 "\20" \ 83 "\040ARCH207\037HTM\034ISEL\032VCRYPTO" 84 85 #define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0) 86 #define TRAPF_PC(frame) ((frame)->srr0) 87 88 /* 89 * CTL_MACHDEP definitions. 90 */ 91 #define CPU_CACHELINE 1 92 93 static __inline u_int64_t 94 get_cyclecount(void) 95 { 96 u_int32_t _upper, _lower; 97 u_int64_t _time; 98 99 __asm __volatile( 100 "mftb %0\n" 101 "mftbu %1" 102 : "=r" (_lower), "=r" (_upper)); 103 104 _time = (u_int64_t)_upper; 105 _time = (_time << 32) + _lower; 106 return (_time); 107 } 108 109 #define cpu_getstack(td) ((td)->td_frame->fixreg[1]) 110 #define cpu_spinwait() __asm __volatile("or 27,27,27") /* yield */ 111 112 extern char btext[]; 113 extern char etext[]; 114 115 void cpu_halt(void); 116 void cpu_reset(void); 117 void cpu_sleep(void); 118 void flush_disable_caches(void); 119 void fork_trampoline(void); 120 void swi_vm(void *); 121 122 #endif /* _MACHINE_CPU_H_ */ 123