1/* $NetBSD: cpuvar.h,v 1.6 2010/03/12 21:37:37 darran Exp $ */ 2 3/* 4 * CDDL HEADER START 5 * 6 * The contents of this file are subject to the terms of the 7 * Common Development and Distribution License (the "License"). 8 * You may not use this file except in compliance with the License. 9 * 10 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11 * or http://www.opensolaris.org/os/licensing. 12 * See the License for the specific language governing permissions 13 * and limitations under the License. 14 * 15 * When distributing Covered Code, include this CDDL HEADER in each 16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17 * If applicable, add the following below this CDDL HEADER, with the 18 * fields enclosed by brackets "[]" replaced with your own identifying 19 * information: Portions Copyright [yyyy] [name of copyright owner] 20 * 21 * CDDL HEADER END 22 */ 23 24/* 25 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29#ifndef _COMPAT_OPENSOLARIS_SYS_CPUVAR_H 30#define _COMPAT_OPENSOLARIS_SYS_CPUVAR_H 31 32#include <sys/mutex.h> 33#include <sys/cpuvar_defs.h> 34 35#ifdef _KERNEL 36 37typedef struct { 38 int cpuid; 39 struct cyc_cpu *cpu_cyclic; 40 uint32_t cpu_flags; 41 uint_t cpu_intr_actv; 42 uintptr_t cpu_profile_pc; 43 uintptr_t cpu_profile_upc; 44 uintptr_t cpu_dtrace_caller; /* DTrace: caller, if any */ 45 hrtime_t cpu_dtrace_chillmark; /* DTrace: chill mark time */ 46 hrtime_t cpu_dtrace_chilled; /* DTrace: total chill time */ 47} solaris_cpu_t; 48 49/* Some code may choose to redefine this if pcpu_t would be more useful. */ 50#define cpu_t solaris_cpu_t 51#define cpu_id cpuid 52 53extern solaris_cpu_t solaris_cpu[]; 54 55#define CPU_CACHE_COHERENCE_SIZE 64 56 57/* 58 * The cpu_core structure consists of per-CPU state available in any context. 59 * On some architectures, this may mean that the page(s) containing the 60 * NCPU-sized array of cpu_core structures must be locked in the TLB -- it 61 * is up to the platform to assure that this is performed properly. Note that 62 * the structure is sized to avoid false sharing. 63 */ 64#define CPUC_SIZE (sizeof (uint16_t) + sizeof (uintptr_t) + \ 65 sizeof (kmutex_t)) 66#define CPUC_PADSIZE CPU_CACHE_COHERENCE_SIZE - CPUC_SIZE 67 68typedef struct cpu_core { 69 uint16_t cpuc_dtrace_flags; /* DTrace flags */ 70 uint8_t cpuc_pad[CPUC_PADSIZE]; /* padding */ 71 uintptr_t cpuc_dtrace_illval; /* DTrace illegal value */ 72 kmutex_t cpuc_pid_lock; /* DTrace pid provider lock */ 73} cpu_core_t; 74 75extern cpu_core_t cpu_core[]; 76#endif /* _KERNEL */ 77 78/* 79 * DTrace flags. 80 */ 81#define CPU_DTRACE_NOFAULT 0x0001 /* Don't fault */ 82#define CPU_DTRACE_DROP 0x0002 /* Drop this ECB */ 83#define CPU_DTRACE_BADADDR 0x0004 /* DTrace fault: bad address */ 84#define CPU_DTRACE_BADALIGN 0x0008 /* DTrace fault: bad alignment */ 85#define CPU_DTRACE_DIVZERO 0x0010 /* DTrace fault: divide by zero */ 86#define CPU_DTRACE_ILLOP 0x0020 /* DTrace fault: illegal operation */ 87#define CPU_DTRACE_NOSCRATCH 0x0040 /* DTrace fault: out of scratch */ 88#define CPU_DTRACE_KPRIV 0x0080 /* DTrace fault: bad kernel access */ 89#define CPU_DTRACE_UPRIV 0x0100 /* DTrace fault: bad user access */ 90#define CPU_DTRACE_TUPOFLOW 0x0200 /* DTrace fault: tuple stack overflow */ 91#if defined(__sparc) 92#define CPU_DTRACE_FAKERESTORE 0x0400 /* pid provider hint to getreg */ 93#endif 94#define CPU_DTRACE_ENTRY 0x0800 /* pid provider hint to ustack() */ 95#define CPU_DTRACE_BADSTACK 0x1000 /* DTrace fault: bad stack */ 96 97#define CPU_DTRACE_FAULT (CPU_DTRACE_BADADDR | CPU_DTRACE_BADALIGN | \ 98 CPU_DTRACE_DIVZERO | CPU_DTRACE_ILLOP | \ 99 CPU_DTRACE_NOSCRATCH | CPU_DTRACE_KPRIV | \ 100 CPU_DTRACE_UPRIV | CPU_DTRACE_TUPOFLOW | \ 101 CPU_DTRACE_BADSTACK) 102#define CPU_DTRACE_ERROR (CPU_DTRACE_FAULT | CPU_DTRACE_DROP) 103 104/* 105 * Flags in the CPU structure. 106 * 107 * These are protected by cpu_lock (except during creation). 108 * 109 * Offlined-CPUs have three stages of being offline: 110 * 111 * CPU_ENABLE indicates that the CPU is participating in I/O interrupts 112 * that can be directed at a number of different CPUs. If CPU_ENABLE 113 * is off, the CPU will not be given interrupts that can be sent elsewhere, 114 * but will still get interrupts from devices associated with that CPU only, 115 * and from other CPUs. 116 * 117 * CPU_OFFLINE indicates that the dispatcher should not allow any threads 118 * other than interrupt threads to run on that CPU. A CPU will not have 119 * CPU_OFFLINE set if there are any bound threads (besides interrupts). 120 * 121 * CPU_QUIESCED is set if p_offline was able to completely turn idle the 122 * CPU and it will not have to run interrupt threads. In this case it'll 123 * stay in the idle loop until CPU_QUIESCED is turned off. 124 * 125 * CPU_FROZEN is used only by CPR to mark CPUs that have been successfully 126 * suspended (in the suspend path), or have yet to be resumed (in the resume 127 * case). 128 * 129 * On some platforms CPUs can be individually powered off. 130 * The following flags are set for powered off CPUs: CPU_QUIESCED, 131 * CPU_OFFLINE, and CPU_POWEROFF. The following flags are cleared: 132 * CPU_RUNNING, CPU_READY, CPU_EXISTS, and CPU_ENABLE. 133 */ 134#define CPU_RUNNING 0x001 /* CPU running */ 135#define CPU_READY 0x002 /* CPU ready for cross-calls */ 136#define CPU_QUIESCED 0x004 /* CPU will stay in idle */ 137#define CPU_EXISTS 0x008 /* CPU is configured */ 138#define CPU_ENABLE 0x010 /* CPU enabled for interrupts */ 139#define CPU_OFFLINE 0x020 /* CPU offline via p_online */ 140#define CPU_POWEROFF 0x040 /* CPU is powered off */ 141#define CPU_FROZEN 0x080 /* CPU is frozen via CPR suspend */ 142#define CPU_SPARE 0x100 /* CPU offline available for use */ 143#define CPU_FAULTED 0x200 /* CPU offline diagnosed faulty */ 144 145typedef enum { 146 CPU_INIT, 147 CPU_CONFIG, 148 CPU_UNCONFIG, 149 CPU_ON, 150 CPU_OFF, 151 CPU_CPUPART_IN, 152 CPU_CPUPART_OUT 153} cpu_setup_t; 154 155typedef int cpu_setup_func_t(cpu_setup_t, int, void *); 156#define mp_maxid ncpu 157 158 159#endif /* _COMPAT_OPENSOLARIS_SYS_CPUVAR_H */ 160