| 1 | /* $NetBSD: cpu_data.h,v 1.38 2014/09/05 05:45:34 matt Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2004, 2006, 2007, 2008 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 26 | * POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | /* |
| 30 | * based on arch/i386/include/cpu.h: |
| 31 | * NetBSD: cpu.h,v 1.115 2004/05/16 12:32:53 yamt Exp |
| 32 | */ |
| 33 | |
| 34 | #ifndef _SYS_CPU_DATA_H_ |
| 35 | #define _SYS_CPU_DATA_H_ |
| 36 | |
| 37 | struct callout; |
| 38 | struct lwp; |
| 39 | |
| 40 | #include <sys/sched.h> /* for schedstate_percpu */ |
| 41 | #include <sys/condvar.h> |
| 42 | #include <sys/pcu.h> |
| 43 | #include <sys/percpu_types.h> |
| 44 | #include <sys/queue.h> |
| 45 | #include <sys/kcpuset.h> |
| 46 | #include <sys/ipi.h> |
| 47 | |
| 48 | /* |
| 49 | * MI per-cpu data |
| 50 | * |
| 51 | * this structure is intended to be included in MD cpu_info structure. |
| 52 | * struct cpu_info { |
| 53 | * struct cpu_data ci_data; |
| 54 | * } |
| 55 | * |
| 56 | * note that cpu_data is not expected to contain much data, |
| 57 | * as cpu_info is size-limited on most ports. |
| 58 | */ |
| 59 | |
| 60 | struct lockdebug; |
| 61 | |
| 62 | struct cpu_data { |
| 63 | /* |
| 64 | * The first section is likely to be touched by other CPUs - |
| 65 | * it is cache hot. |
| 66 | */ |
| 67 | lwp_t *cpu_biglock_wanted; /* LWP spinning on biglock */ |
| 68 | void *cpu_callout; /* per-CPU callout state */ |
| 69 | void *cpu_unused1; /* unused */ |
| 70 | u_int cpu_unused2; /* unused */ |
| 71 | struct schedstate_percpu cpu_schedstate; /* scheduler state */ |
| 72 | kcondvar_t cpu_xcall; /* cross-call support */ |
| 73 | int cpu_xcall_pending; /* cross-call support */ |
| 74 | lwp_t *cpu_onproc; /* bottom level LWP */ |
| 75 | uint32_t cpu_ipipend[IPI_BITWORDS]; /* pending IPIs */ |
| 76 | |
| 77 | cpuid_t cpu_package_id; |
| 78 | cpuid_t cpu_core_id; |
| 79 | cpuid_t cpu_smt_id; |
| 80 | |
| 81 | struct lwp * volatile cpu_pcu_curlwp[PCU_UNIT_COUNT]; |
| 82 | |
| 83 | /* |
| 84 | * This section is mostly CPU-private. |
| 85 | */ |
| 86 | lwp_t *cpu_idlelwp; /* idle lwp */ |
| 87 | void *cpu_lockstat; /* lockstat private tables */ |
| 88 | u_int cpu_index; /* CPU index */ |
| 89 | u_int cpu_biglock_count; /* # recursive holds */ |
| 90 | u_int cpu_spin_locks; /* # of spinlockmgr locks */ |
| 91 | u_int cpu_simple_locks; /* # of simple locks held */ |
| 92 | u_int cpu_spin_locks2; /* # of spin locks held XXX */ |
| 93 | u_int cpu_lkdebug_recurse; /* LOCKDEBUG recursion */ |
| 94 | u_int cpu_softints; /* pending (slow) softints */ |
| 95 | uint64_t cpu_nsyscall; /* syscall counter */ |
| 96 | uint64_t cpu_ntrap; /* trap counter */ |
| 97 | uint64_t cpu_nswtch; /* context switch counter */ |
| 98 | uint64_t cpu_nintr; /* interrupt count */ |
| 99 | uint64_t cpu_nsoft; /* soft interrupt count */ |
| 100 | uint64_t cpu_nfault; /* pagefault counter */ |
| 101 | struct uvm_cpu *cpu_uvm; /* uvm per-cpu data */ |
| 102 | void *cpu_softcpu; /* soft interrupt table */ |
| 103 | TAILQ_HEAD(,buf) cpu_biodone; /* finished block xfers */ |
| 104 | percpu_cpu_t cpu_percpu; /* per-cpu data */ |
| 105 | struct selcluster *cpu_selcluster; /* per-CPU select() info */ |
| 106 | void *cpu_nch; /* per-cpu vfs_cache data */ |
| 107 | _TAILQ_HEAD(,struct lockdebug,volatile) cpu_ld_locks;/* !: lockdebug */ |
| 108 | __cpu_simple_lock_t cpu_ld_lock; /* lockdebug */ |
| 109 | uint64_t cpu_cc_freq; /* cycle counter frequency */ |
| 110 | int64_t cpu_cc_skew; /* counter skew vs cpu0 */ |
| 111 | char cpu_name[8]; /* eg, "cpu4" */ |
| 112 | kcpuset_t *cpu_kcpuset; /* kcpuset_t of this cpu only */ |
| 113 | }; |
| 114 | |
| 115 | /* compat definitions */ |
| 116 | #define ci_schedstate ci_data.cpu_schedstate |
| 117 | #define ci_index ci_data.cpu_index |
| 118 | #define ci_biglock_count ci_data.cpu_biglock_count |
| 119 | #define ci_biglock_wanted ci_data.cpu_biglock_wanted |
| 120 | #define ci_cpuname ci_data.cpu_name |
| 121 | #define ci_spin_locks ci_data.cpu_spin_locks |
| 122 | #define ci_simple_locks ci_data.cpu_simple_locks |
| 123 | #define ci_lockstat ci_data.cpu_lockstat |
| 124 | #define ci_spin_locks2 ci_data.cpu_spin_locks2 |
| 125 | #define ci_lkdebug_recurse ci_data.cpu_lkdebug_recurse |
| 126 | #define ci_pcu_curlwp ci_data.cpu_pcu_curlwp |
| 127 | #define ci_kcpuset ci_data.cpu_kcpuset |
| 128 | #define ci_ipipend ci_data.cpu_ipipend |
| 129 | |
| 130 | #define ci_package_id ci_data.cpu_package_id |
| 131 | #define ci_core_id ci_data.cpu_core_id |
| 132 | #define ci_smt_id ci_data.cpu_smt_id |
| 133 | |
| 134 | void mi_cpu_init(void); |
| 135 | int mi_cpu_attach(struct cpu_info *); |
| 136 | |
| 137 | #endif /* _SYS_CPU_DATA_H_ */ |
| 138 | |