1 /*- 2 * Copyright (C) 1995-1997 Wolfgang Solfrank. 3 * Copyright (C) 1995-1997 TooLs GmbH. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by TooLs GmbH. 17 * 4. The name of TooLs GmbH may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $ 32 * $FreeBSD$ 33 */ 34 35 #ifndef _MACHINE_CPU_H_ 36 #define _MACHINE_CPU_H_ 37 38 #include <machine/frame.h> 39 #include <machine/pcb.h> 40 #include <machine/psl.h> 41 42 /* 43 * CPU Feature Attributes 44 * 45 * These are defined in the PowerPC ELF ABI for the AT_HWCAP vector, 46 * and are exported to userland via the machdep.cpu_features 47 * sysctl. 48 */ 49 50 extern int cpu_features; 51 extern int cpu_features2; 52 53 #define PPC_FEATURE_32 0x80000000 /* Always true */ 54 #define PPC_FEATURE_64 0x40000000 /* Defined on a 64-bit CPU */ 55 #define PPC_FEATURE_HAS_ALTIVEC 0x10000000 56 #define PPC_FEATURE_HAS_FPU 0x08000000 57 #define PPC_FEATURE_HAS_MMU 0x04000000 58 #define PPC_FEATURE_UNIFIED_CACHE 0x01000000 59 #define PPC_FEATURE_HAS_SPE 0x00800000 60 #define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000 61 #define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000 62 #define PPC_FEATURE_BOOKE 0x00008000 63 #define PPC_FEATURE_SMT 0x00004000 64 #define PPC_FEATURE_ARCH_2_05 0x00001000 65 #define PPC_FEATURE_HAS_DFP 0x00000400 66 #define PPC_FEATURE_ARCH_2_06 0x00000100 67 #define PPC_FEATURE_HAS_VSX 0x00000080 68 69 #define PPC_FEATURE2_ARCH_2_07 0x80000000 70 #define PPC_FEATURE2_HAS_HTM 0x40000000 71 #define PPC_FEATURE2_ISEL 0x08000000 72 #define PPC_FEATURE2_HAS_VCRYPTO 0x02000000 73 74 #define PPC_FEATURE_BITMASK \ 75 "\20" \ 76 "\040PPC32\037PPC64\035ALTIVEC\034FPU\033MMU\031UNIFIEDCACHE" \ 77 "\030SPE\027SPESFP\026DPESFP\020BOOKE\017SMT\015ARCH205\013DFP" \ 78 "\011ARCH206\010VSX" 79 #define PPC_FEATURE2_BITMASK \ 80 "\20" \ 81 "\040ARCH207\037HTM\034ISEL\032VCRYPTO" 82 83 #define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0) 84 #define TRAPF_PC(frame) ((frame)->srr0) 85 86 /* 87 * CTL_MACHDEP definitions. 88 */ 89 #define CPU_CACHELINE 1 90 91 static __inline u_int64_t 92 get_cyclecount(void) 93 { 94 u_int32_t _upper, _lower; 95 u_int64_t _time; 96 97 __asm __volatile( 98 "mftb %0\n" 99 "mftbu %1" 100 : "=r" (_lower), "=r" (_upper)); 101 102 _time = (u_int64_t)_upper; 103 _time = (_time << 32) + _lower; 104 return (_time); 105 } 106 107 #define cpu_getstack(td) ((td)->td_frame->fixreg[1]) 108 #define cpu_spinwait() __asm __volatile("or 27,27,27") /* yield */ 109 110 extern char btext[]; 111 extern char etext[]; 112 113 void cpu_halt(void); 114 void cpu_reset(void); 115 void cpu_sleep(void); 116 void flush_disable_caches(void); 117 void fork_trampoline(void); 118 void swi_vm(void *); 119 120 #endif /* _MACHINE_CPU_H_ */ 121