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Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/sys/cpuvar.h')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/sys/cpuvar.h | 830 |
1 files changed, 0 insertions, 830 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/sys/cpuvar.h b/sys/cddl/contrib/opensolaris/uts/common/sys/cpuvar.h deleted file mode 100644 index f526c85872e7..000000000000 --- a/sys/cddl/contrib/opensolaris/uts/common/sys/cpuvar.h +++ /dev/null @@ -1,830 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ - -/* - * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright 2014 Igor Kozhukhov <ikozhukhov@gmail.com>. - * Copyright 2017 RackTop Systems. - */ - -#ifndef _SYS_CPUVAR_H -#define _SYS_CPUVAR_H - -#include <sys/thread.h> -#include <sys/sysinfo.h> /* has cpu_stat_t definition */ -#include <sys/disp.h> -#include <sys/processor.h> -#include <sys/kcpc.h> /* has kcpc_ctx_t definition */ - -#include <sys/loadavg.h> -#if (defined(_KERNEL) || defined(_KMEMUSER)) && defined(_MACHDEP) -#include <sys/machcpuvar.h> -#endif - -#include <sys/types.h> -#include <sys/file.h> -#include <sys/bitmap.h> -#include <sys/rwlock.h> -#include <sys/msacct.h> -#if defined(__GNUC__) && defined(_ASM_INLINES) && defined(_KERNEL) && \ - (defined(__i386) || defined(__amd64)) -#include <asm/cpuvar.h> -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -struct squeue_set_s; - -#define CPU_CACHE_COHERENCE_SIZE 64 - -/* - * For fast event tracing. - */ -struct ftrace_record; -typedef struct ftrace_data { - int ftd_state; /* ftrace flags */ - kmutex_t ftd_unused; /* ftrace buffer lock, unused */ - struct ftrace_record *ftd_cur; /* current record */ - struct ftrace_record *ftd_first; /* first record */ - struct ftrace_record *ftd_last; /* last record */ -} ftrace_data_t; - -struct cyc_cpu; -struct nvlist; - -/* - * Per-CPU data. - * - * Be careful adding new members: if they are not the same in all modules (e.g. - * change size depending on a #define), CTF uniquification can fail to work - * properly. Furthermore, this is transitive in that it applies recursively to - * all types pointed to by cpu_t. - */ -typedef struct cpu { - processorid_t cpu_id; /* CPU number */ - processorid_t cpu_seqid; /* sequential CPU id (0..ncpus-1) */ - volatile cpu_flag_t cpu_flags; /* flags indicating CPU state */ - struct cpu *cpu_self; /* pointer to itself */ - kthread_t *cpu_thread; /* current thread */ - kthread_t *cpu_idle_thread; /* idle thread for this CPU */ - kthread_t *cpu_pause_thread; /* pause thread for this CPU */ - klwp_id_t cpu_lwp; /* current lwp (if any) */ - klwp_id_t cpu_fpowner; /* currently loaded fpu owner */ - struct cpupart *cpu_part; /* partition with this CPU */ - struct lgrp_ld *cpu_lpl; /* pointer to this cpu's load */ - int cpu_cache_offset; /* see kmem.c for details */ - - /* - * Links to other CPUs. It is safe to walk these lists if - * one of the following is true: - * - cpu_lock held - * - preemption disabled via kpreempt_disable - * - PIL >= DISP_LEVEL - * - acting thread is an interrupt thread - * - all other CPUs are paused - */ - struct cpu *cpu_next; /* next existing CPU */ - struct cpu *cpu_prev; /* prev existing CPU */ - struct cpu *cpu_next_onln; /* next online (enabled) CPU */ - struct cpu *cpu_prev_onln; /* prev online (enabled) CPU */ - struct cpu *cpu_next_part; /* next CPU in partition */ - struct cpu *cpu_prev_part; /* prev CPU in partition */ - struct cpu *cpu_next_lgrp; /* next CPU in latency group */ - struct cpu *cpu_prev_lgrp; /* prev CPU in latency group */ - struct cpu *cpu_next_lpl; /* next CPU in lgrp partition */ - struct cpu *cpu_prev_lpl; - - struct cpu_pg *cpu_pg; /* cpu's processor groups */ - - void *cpu_reserved[4]; /* reserved for future use */ - - /* - * Scheduling variables. - */ - disp_t *cpu_disp; /* dispatch queue data */ - /* - * Note that cpu_disp is set before the CPU is added to the system - * and is never modified. Hence, no additional locking is needed - * beyond what's necessary to access the cpu_t structure. - */ - char cpu_runrun; /* scheduling flag - set to preempt */ - char cpu_kprunrun; /* force kernel preemption */ - pri_t cpu_chosen_level; /* priority at which cpu */ - /* was chosen for scheduling */ - kthread_t *cpu_dispthread; /* thread selected for dispatch */ - disp_lock_t cpu_thread_lock; /* dispatcher lock on current thread */ - uint8_t cpu_disp_flags; /* flags used by dispatcher */ - /* - * The following field is updated when ever the cpu_dispthread - * changes. Also in places, where the current thread(cpu_dispthread) - * priority changes. This is used in disp_lowpri_cpu() - */ - pri_t cpu_dispatch_pri; /* priority of cpu_dispthread */ - clock_t cpu_last_swtch; /* last time switched to new thread */ - - /* - * Interrupt data. - */ - caddr_t cpu_intr_stack; /* interrupt stack */ - kthread_t *cpu_intr_thread; /* interrupt thread list */ - uint_t cpu_intr_actv; /* interrupt levels active (bitmask) */ - int cpu_base_spl; /* priority for highest rupt active */ - - /* - * Statistics. - */ - cpu_stats_t cpu_stats; /* per-CPU statistics */ - struct kstat *cpu_info_kstat; /* kstat for cpu info */ - - uintptr_t cpu_profile_pc; /* kernel PC in profile interrupt */ - uintptr_t cpu_profile_upc; /* user PC in profile interrupt */ - uintptr_t cpu_profile_pil; /* PIL when profile interrupted */ - - ftrace_data_t cpu_ftrace; /* per cpu ftrace data */ - - clock_t cpu_deadman_counter; /* used by deadman() */ - uint_t cpu_deadman_countdown; /* used by deadman() */ - - kmutex_t cpu_cpc_ctxlock; /* protects context for idle thread */ - kcpc_ctx_t *cpu_cpc_ctx; /* performance counter context */ - - /* - * Configuration information for the processor_info system call. - */ - processor_info_t cpu_type_info; /* config info */ - time_t cpu_state_begin; /* when CPU entered current state */ - char cpu_cpr_flags; /* CPR related info */ - struct cyc_cpu *cpu_cyclic; /* per cpu cyclic subsystem data */ - struct squeue_set_s *cpu_squeue_set; /* per cpu squeue set */ - struct nvlist *cpu_props; /* pool-related properties */ - - krwlock_t cpu_ft_lock; /* DTrace: fasttrap lock */ - uintptr_t cpu_dtrace_caller; /* DTrace: caller, if any */ - hrtime_t cpu_dtrace_chillmark; /* DTrace: chill mark time */ - hrtime_t cpu_dtrace_chilled; /* DTrace: total chill time */ - volatile uint16_t cpu_mstate; /* cpu microstate */ - volatile uint16_t cpu_mstate_gen; /* generation counter */ - volatile hrtime_t cpu_mstate_start; /* cpu microstate start time */ - volatile hrtime_t cpu_acct[NCMSTATES]; /* cpu microstate data */ - hrtime_t cpu_intracct[NCMSTATES]; /* interrupt mstate data */ - hrtime_t cpu_waitrq; /* cpu run-queue wait time */ - struct loadavg_s cpu_loadavg; /* loadavg info for this cpu */ - - char *cpu_idstr; /* for printing and debugging */ - char *cpu_brandstr; /* for printing */ - - /* - * Sum of all device interrupt weights that are currently directed at - * this cpu. Cleared at start of interrupt redistribution. - */ - int32_t cpu_intr_weight; - void *cpu_vm_data; - - struct cpu_physid *cpu_physid; /* physical associations */ - - uint64_t cpu_curr_clock; /* current clock freq in Hz */ - char *cpu_supp_freqs; /* supported freqs in Hz */ - - uintptr_t cpu_cpcprofile_pc; /* kernel PC in cpc interrupt */ - uintptr_t cpu_cpcprofile_upc; /* user PC in cpc interrupt */ - - /* - * Interrupt load factor used by dispatcher & softcall - */ - hrtime_t cpu_intrlast; /* total interrupt time (nsec) */ - int cpu_intrload; /* interrupt load factor (0-99%) */ - - uint_t cpu_rotor; /* for cheap pseudo-random numbers */ - - struct cu_cpu_info *cpu_cu_info; /* capacity & util. info */ - - /* - * cpu_generation is updated whenever CPU goes on-line or off-line. - * Updates to cpu_generation are protected by cpu_lock. - * - * See CPU_NEW_GENERATION() macro below. - */ - volatile uint_t cpu_generation; /* tracking on/off-line */ - - /* - * New members must be added /before/ this member, as the CTF tools - * rely on this being the last field before cpu_m, so they can - * correctly calculate the offset when synthetically adding the cpu_m - * member in objects that do not have it. This fixup is required for - * uniquification to work correctly. - */ - uintptr_t cpu_m_pad; - -#if (defined(_KERNEL) || defined(_KMEMUSER)) && defined(_MACHDEP) - struct machcpu cpu_m; /* per architecture info */ -#endif -} cpu_t; - -/* - * The cpu_core structure consists of per-CPU state available in any context. - * On some architectures, this may mean that the page(s) containing the - * NCPU-sized array of cpu_core structures must be locked in the TLB -- it - * is up to the platform to assure that this is performed properly. Note that - * the structure is sized to avoid false sharing. - */ -#define CPUC_SIZE (sizeof (uint16_t) + sizeof (uint8_t) + \ - sizeof (uintptr_t) + sizeof (kmutex_t)) -#define CPUC_PADSIZE CPU_CACHE_COHERENCE_SIZE - CPUC_SIZE - -typedef struct cpu_core { - uint16_t cpuc_dtrace_flags; /* DTrace flags */ - uint8_t cpuc_dcpc_intr_state; /* DCPC provider intr state */ - uint8_t cpuc_pad[CPUC_PADSIZE]; /* padding */ - uintptr_t cpuc_dtrace_illval; /* DTrace illegal value */ - kmutex_t cpuc_pid_lock; /* DTrace pid provider lock */ -} cpu_core_t; - -#ifdef _KERNEL -extern cpu_core_t cpu_core[]; -#endif /* _KERNEL */ - -/* - * CPU_ON_INTR() macro. Returns non-zero if currently on interrupt stack. - * Note that this isn't a test for a high PIL. For example, cpu_intr_actv - * does not get updated when we go through sys_trap from TL>0 at high PIL. - * getpil() should be used instead to check for PIL levels. - */ -#define CPU_ON_INTR(cpup) ((cpup)->cpu_intr_actv >> (LOCK_LEVEL + 1)) - -/* - * Check to see if an interrupt thread might be active at a given ipl. - * If so return true. - * We must be conservative--it is ok to give a false yes, but a false no - * will cause disaster. (But if the situation changes after we check it is - * ok--the caller is trying to ensure that an interrupt routine has been - * exited). - * This is used when trying to remove an interrupt handler from an autovector - * list in avintr.c. - */ -#define INTR_ACTIVE(cpup, level) \ - ((level) <= LOCK_LEVEL ? \ - ((cpup)->cpu_intr_actv & (1 << (level))) : (CPU_ON_INTR(cpup))) - -/* - * CPU_PSEUDO_RANDOM() returns a per CPU value that changes each time one - * looks at it. It's meant as a cheap mechanism to be incorporated in routines - * wanting to avoid biasing, but where true randomness isn't needed (just - * something that changes). - */ -#define CPU_PSEUDO_RANDOM() (CPU->cpu_rotor++) - -#if defined(_KERNEL) || defined(_KMEMUSER) - -#define INTR_STACK_SIZE MAX(DEFAULTSTKSZ, PAGESIZE) - -/* MEMBERS PROTECTED BY "atomicity": cpu_flags */ - -/* - * Flags in the CPU structure. - * - * These are protected by cpu_lock (except during creation). - * - * Offlined-CPUs have three stages of being offline: - * - * CPU_ENABLE indicates that the CPU is participating in I/O interrupts - * that can be directed at a number of different CPUs. If CPU_ENABLE - * is off, the CPU will not be given interrupts that can be sent elsewhere, - * but will still get interrupts from devices associated with that CPU only, - * and from other CPUs. - * - * CPU_OFFLINE indicates that the dispatcher should not allow any threads - * other than interrupt threads to run on that CPU. A CPU will not have - * CPU_OFFLINE set if there are any bound threads (besides interrupts). - * - * CPU_QUIESCED is set if p_offline was able to completely turn idle the - * CPU and it will not have to run interrupt threads. In this case it'll - * stay in the idle loop until CPU_QUIESCED is turned off. - * - * CPU_FROZEN is used only by CPR to mark CPUs that have been successfully - * suspended (in the suspend path), or have yet to be resumed (in the resume - * case). - * - * On some platforms CPUs can be individually powered off. - * The following flags are set for powered off CPUs: CPU_QUIESCED, - * CPU_OFFLINE, and CPU_POWEROFF. The following flags are cleared: - * CPU_RUNNING, CPU_READY, CPU_EXISTS, and CPU_ENABLE. - */ -#define CPU_RUNNING 0x001 /* CPU running */ -#define CPU_READY 0x002 /* CPU ready for cross-calls */ -#define CPU_QUIESCED 0x004 /* CPU will stay in idle */ -#define CPU_EXISTS 0x008 /* CPU is configured */ -#define CPU_ENABLE 0x010 /* CPU enabled for interrupts */ -#define CPU_OFFLINE 0x020 /* CPU offline via p_online */ -#define CPU_POWEROFF 0x040 /* CPU is powered off */ -#define CPU_FROZEN 0x080 /* CPU is frozen via CPR suspend */ -#define CPU_SPARE 0x100 /* CPU offline available for use */ -#define CPU_FAULTED 0x200 /* CPU offline diagnosed faulty */ - -#define FMT_CPU_FLAGS \ - "\20\12fault\11spare\10frozen" \ - "\7poweroff\6offline\5enable\4exist\3quiesced\2ready\1run" - -#define CPU_ACTIVE(cpu) (((cpu)->cpu_flags & CPU_OFFLINE) == 0) - -/* - * Flags for cpu_offline(), cpu_faulted(), and cpu_spare(). - */ -#define CPU_FORCED 0x0001 /* Force CPU offline */ - -/* - * DTrace flags. - */ -#define CPU_DTRACE_NOFAULT 0x0001 /* Don't fault */ -#define CPU_DTRACE_DROP 0x0002 /* Drop this ECB */ -#define CPU_DTRACE_BADADDR 0x0004 /* DTrace fault: bad address */ -#define CPU_DTRACE_BADALIGN 0x0008 /* DTrace fault: bad alignment */ -#define CPU_DTRACE_DIVZERO 0x0010 /* DTrace fault: divide by zero */ -#define CPU_DTRACE_ILLOP 0x0020 /* DTrace fault: illegal operation */ -#define CPU_DTRACE_NOSCRATCH 0x0040 /* DTrace fault: out of scratch */ -#define CPU_DTRACE_KPRIV 0x0080 /* DTrace fault: bad kernel access */ -#define CPU_DTRACE_UPRIV 0x0100 /* DTrace fault: bad user access */ -#define CPU_DTRACE_TUPOFLOW 0x0200 /* DTrace fault: tuple stack overflow */ -#if defined(__sparc) -#define CPU_DTRACE_FAKERESTORE 0x0400 /* pid provider hint to getreg */ -#endif -#define CPU_DTRACE_ENTRY 0x0800 /* pid provider hint to ustack() */ -#define CPU_DTRACE_BADSTACK 0x1000 /* DTrace fault: bad stack */ - -#define CPU_DTRACE_FAULT (CPU_DTRACE_BADADDR | CPU_DTRACE_BADALIGN | \ - CPU_DTRACE_DIVZERO | CPU_DTRACE_ILLOP | \ - CPU_DTRACE_NOSCRATCH | CPU_DTRACE_KPRIV | \ - CPU_DTRACE_UPRIV | CPU_DTRACE_TUPOFLOW | \ - CPU_DTRACE_BADSTACK) -#define CPU_DTRACE_ERROR (CPU_DTRACE_FAULT | CPU_DTRACE_DROP) - -/* - * Dispatcher flags - * These flags must be changed only by the current CPU. - */ -#define CPU_DISP_DONTSTEAL 0x01 /* CPU undergoing context swtch */ -#define CPU_DISP_HALTED 0x02 /* CPU halted waiting for interrupt */ - -#endif /* _KERNEL || _KMEMUSER */ - -#if (defined(_KERNEL) || defined(_KMEMUSER)) && defined(_MACHDEP) - -/* - * Macros for manipulating sets of CPUs as a bitmap. Note that this - * bitmap may vary in size depending on the maximum CPU id a specific - * platform supports. This may be different than the number of CPUs - * the platform supports, since CPU ids can be sparse. We define two - * sets of macros; one for platforms where the maximum CPU id is less - * than the number of bits in a single word (32 in a 32-bit kernel, - * 64 in a 64-bit kernel), and one for platforms that require bitmaps - * of more than one word. - */ - -#define CPUSET_WORDS BT_BITOUL(NCPU) -#define CPUSET_NOTINSET ((uint_t)-1) - -#if CPUSET_WORDS > 1 - -typedef struct cpuset { - ulong_t cpub[CPUSET_WORDS]; -} cpuset_t; - -/* - * Private functions for manipulating cpusets that do not fit in a - * single word. These should not be used directly; instead the - * CPUSET_* macros should be used so the code will be portable - * across different definitions of NCPU. - */ -extern void cpuset_all(cpuset_t *); -extern void cpuset_all_but(cpuset_t *, uint_t); -extern int cpuset_isnull(cpuset_t *); -extern int cpuset_cmp(cpuset_t *, cpuset_t *); -extern void cpuset_only(cpuset_t *, uint_t); -extern uint_t cpuset_find(cpuset_t *); -extern void cpuset_bounds(cpuset_t *, uint_t *, uint_t *); - -#define CPUSET_ALL(set) cpuset_all(&(set)) -#define CPUSET_ALL_BUT(set, cpu) cpuset_all_but(&(set), cpu) -#define CPUSET_ONLY(set, cpu) cpuset_only(&(set), cpu) -#define CPU_IN_SET(set, cpu) BT_TEST((set).cpub, cpu) -#define CPUSET_ADD(set, cpu) BT_SET((set).cpub, cpu) -#define CPUSET_DEL(set, cpu) BT_CLEAR((set).cpub, cpu) -#define CPUSET_ISNULL(set) cpuset_isnull(&(set)) -#define CPUSET_ISEQUAL(set1, set2) cpuset_cmp(&(set1), &(set2)) - -/* - * Find one CPU in the cpuset. - * Sets "cpu" to the id of the found CPU, or CPUSET_NOTINSET if no cpu - * could be found. (i.e. empty set) - */ -#define CPUSET_FIND(set, cpu) { \ - cpu = cpuset_find(&(set)); \ -} - -/* - * Determine the smallest and largest CPU id in the set. Returns - * CPUSET_NOTINSET in smallest and largest when set is empty. - */ -#define CPUSET_BOUNDS(set, smallest, largest) { \ - cpuset_bounds(&(set), &(smallest), &(largest)); \ -} - -/* - * Atomic cpuset operations - * These are safe to use for concurrent cpuset manipulations. - * "xdel" and "xadd" are exclusive operations, that set "result" to "0" - * if the add or del was successful, or "-1" if not successful. - * (e.g. attempting to add a cpu to a cpuset that's already there, or - * deleting a cpu that's not in the cpuset) - */ - -#define CPUSET_ATOMIC_DEL(set, cpu) BT_ATOMIC_CLEAR((set).cpub, (cpu)) -#define CPUSET_ATOMIC_ADD(set, cpu) BT_ATOMIC_SET((set).cpub, (cpu)) - -#define CPUSET_ATOMIC_XADD(set, cpu, result) \ - BT_ATOMIC_SET_EXCL((set).cpub, cpu, result) - -#define CPUSET_ATOMIC_XDEL(set, cpu, result) \ - BT_ATOMIC_CLEAR_EXCL((set).cpub, cpu, result) - - -#define CPUSET_OR(set1, set2) { \ - int _i; \ - for (_i = 0; _i < CPUSET_WORDS; _i++) \ - (set1).cpub[_i] |= (set2).cpub[_i]; \ -} - -#define CPUSET_XOR(set1, set2) { \ - int _i; \ - for (_i = 0; _i < CPUSET_WORDS; _i++) \ - (set1).cpub[_i] ^= (set2).cpub[_i]; \ -} - -#define CPUSET_AND(set1, set2) { \ - int _i; \ - for (_i = 0; _i < CPUSET_WORDS; _i++) \ - (set1).cpub[_i] &= (set2).cpub[_i]; \ -} - -#define CPUSET_ZERO(set) { \ - int _i; \ - for (_i = 0; _i < CPUSET_WORDS; _i++) \ - (set).cpub[_i] = 0; \ -} - -#elif CPUSET_WORDS == 1 - -typedef ulong_t cpuset_t; /* a set of CPUs */ - -#define CPUSET(cpu) (1UL << (cpu)) - -#define CPUSET_ALL(set) ((void)((set) = ~0UL)) -#define CPUSET_ALL_BUT(set, cpu) ((void)((set) = ~CPUSET(cpu))) -#define CPUSET_ONLY(set, cpu) ((void)((set) = CPUSET(cpu))) -#define CPU_IN_SET(set, cpu) ((set) & CPUSET(cpu)) -#define CPUSET_ADD(set, cpu) ((void)((set) |= CPUSET(cpu))) -#define CPUSET_DEL(set, cpu) ((void)((set) &= ~CPUSET(cpu))) -#define CPUSET_ISNULL(set) ((set) == 0) -#define CPUSET_ISEQUAL(set1, set2) ((set1) == (set2)) -#define CPUSET_OR(set1, set2) ((void)((set1) |= (set2))) -#define CPUSET_XOR(set1, set2) ((void)((set1) ^= (set2))) -#define CPUSET_AND(set1, set2) ((void)((set1) &= (set2))) -#define CPUSET_ZERO(set) ((void)((set) = 0)) - -#define CPUSET_FIND(set, cpu) { \ - cpu = (uint_t)(lowbit(set) - 1); \ -} - -#define CPUSET_BOUNDS(set, smallest, largest) { \ - smallest = (uint_t)(lowbit(set) - 1); \ - largest = (uint_t)(highbit(set) - 1); \ -} - -#define CPUSET_ATOMIC_DEL(set, cpu) atomic_and_ulong(&(set), ~CPUSET(cpu)) -#define CPUSET_ATOMIC_ADD(set, cpu) atomic_or_ulong(&(set), CPUSET(cpu)) - -#define CPUSET_ATOMIC_XADD(set, cpu, result) \ - { result = atomic_set_long_excl(&(set), (cpu)); } - -#define CPUSET_ATOMIC_XDEL(set, cpu, result) \ - { result = atomic_clear_long_excl(&(set), (cpu)); } - -#else /* CPUSET_WORDS <= 0 */ - -#error NCPU is undefined or invalid - -#endif /* CPUSET_WORDS */ - -extern cpuset_t cpu_seqid_inuse; - -#endif /* (_KERNEL || _KMEMUSER) && _MACHDEP */ - -#define CPU_CPR_OFFLINE 0x0 -#define CPU_CPR_ONLINE 0x1 -#define CPU_CPR_IS_OFFLINE(cpu) (((cpu)->cpu_cpr_flags & CPU_CPR_ONLINE) == 0) -#define CPU_CPR_IS_ONLINE(cpu) ((cpu)->cpu_cpr_flags & CPU_CPR_ONLINE) -#define CPU_SET_CPR_FLAGS(cpu, flag) ((cpu)->cpu_cpr_flags |= flag) - -#if defined(_KERNEL) || defined(_KMEMUSER) - -extern struct cpu *cpu[]; /* indexed by CPU number */ -extern struct cpu **cpu_seq; /* indexed by sequential CPU id */ -extern cpu_t *cpu_list; /* list of CPUs */ -extern cpu_t *cpu_active; /* list of active CPUs */ -extern int ncpus; /* number of CPUs present */ -extern int ncpus_online; /* number of CPUs not quiesced */ -extern int max_ncpus; /* max present before ncpus is known */ -extern int boot_max_ncpus; /* like max_ncpus but for real */ -extern int boot_ncpus; /* # cpus present @ boot */ -extern processorid_t max_cpuid; /* maximum CPU number */ -extern struct cpu *cpu_inmotion; /* offline or partition move target */ -extern cpu_t *clock_cpu_list; -extern processorid_t max_cpu_seqid_ever; /* maximum seqid ever given */ - -#if defined(__i386) || defined(__amd64) -extern struct cpu *curcpup(void); -#define CPU (curcpup()) /* Pointer to current CPU */ -#else -#define CPU (curthread->t_cpu) /* Pointer to current CPU */ -#endif - -/* - * CPU_CURRENT indicates to thread_affinity_set to use CPU->cpu_id - * as the target and to grab cpu_lock instead of requiring the caller - * to grab it. - */ -#define CPU_CURRENT -3 - -/* - * Per-CPU statistics - * - * cpu_stats_t contains numerous system and VM-related statistics, in the form - * of gauges or monotonically-increasing event occurrence counts. - */ - -#define CPU_STATS_ENTER_K() kpreempt_disable() -#define CPU_STATS_EXIT_K() kpreempt_enable() - -#define CPU_STATS_ADD_K(class, stat, amount) \ - { kpreempt_disable(); /* keep from switching CPUs */\ - CPU_STATS_ADDQ(CPU, class, stat, amount); \ - kpreempt_enable(); \ - } - -#define CPU_STATS_ADDQ(cp, class, stat, amount) { \ - extern void __dtrace_probe___cpu_##class##info_##stat(uint_t, \ - uint64_t *, cpu_t *); \ - uint64_t *stataddr = &((cp)->cpu_stats.class.stat); \ - __dtrace_probe___cpu_##class##info_##stat((amount), \ - stataddr, cp); \ - *(stataddr) += (amount); \ -} - -#define CPU_STATS(cp, stat) \ - ((cp)->cpu_stats.stat) - -/* - * Increment CPU generation value. - * This macro should be called whenever CPU goes on-line or off-line. - * Updates to cpu_generation should be protected by cpu_lock. - */ -#define CPU_NEW_GENERATION(cp) ((cp)->cpu_generation++) - -#endif /* _KERNEL || _KMEMUSER */ - -/* - * CPU support routines (not for genassym.c) - */ -#if (defined(_KERNEL) || defined(_FAKE_KERNEL)) && defined(__STDC__) - -struct zone; - -void cpu_list_init(cpu_t *); -void cpu_add_unit(cpu_t *); -void cpu_del_unit(int cpuid); -void cpu_add_active(cpu_t *); -void cpu_kstat_init(cpu_t *); -void cpu_visibility_add(cpu_t *, struct zone *); -void cpu_visibility_remove(cpu_t *, struct zone *); -void cpu_visibility_configure(cpu_t *, struct zone *); -void cpu_visibility_unconfigure(cpu_t *, struct zone *); -void cpu_visibility_online(cpu_t *, struct zone *); -void cpu_visibility_offline(cpu_t *, struct zone *); -void cpu_create_intrstat(cpu_t *); -void cpu_delete_intrstat(cpu_t *); -int cpu_kstat_intrstat_update(kstat_t *, int); -void cpu_intr_swtch_enter(kthread_t *); -void cpu_intr_swtch_exit(kthread_t *); - -void mbox_lock_init(void); /* initialize cross-call locks */ -void mbox_init(int cpun); /* initialize cross-calls */ -void poke_cpu(int cpun); /* interrupt another CPU (to preempt) */ - -/* - * values for safe_list. Pause state that CPUs are in. - */ -#define PAUSE_IDLE 0 /* normal state */ -#define PAUSE_READY 1 /* paused thread ready to spl */ -#define PAUSE_WAIT 2 /* paused thread is spl-ed high */ -#define PAUSE_DIE 3 /* tell pause thread to leave */ -#define PAUSE_DEAD 4 /* pause thread has left */ - -void mach_cpu_pause(volatile char *); - -void pause_cpus(cpu_t *off_cp, void *(*func)(void *)); -void start_cpus(void); -int cpus_paused(void); - -void cpu_pause_init(void); -cpu_t *cpu_get(processorid_t cpun); /* get the CPU struct associated */ - -int cpu_online(cpu_t *cp); /* take cpu online */ -int cpu_offline(cpu_t *cp, int flags); /* take cpu offline */ -int cpu_spare(cpu_t *cp, int flags); /* take cpu to spare */ -int cpu_faulted(cpu_t *cp, int flags); /* take cpu to faulted */ -int cpu_poweron(cpu_t *cp); /* take powered-off cpu to offline */ -int cpu_poweroff(cpu_t *cp); /* take offline cpu to powered-off */ - -cpu_t *cpu_intr_next(cpu_t *cp); /* get next online CPU taking intrs */ -int cpu_intr_count(cpu_t *cp); /* count # of CPUs handling intrs */ -int cpu_intr_on(cpu_t *cp); /* CPU taking I/O interrupts? */ -void cpu_intr_enable(cpu_t *cp); /* enable I/O interrupts */ -int cpu_intr_disable(cpu_t *cp); /* disable I/O interrupts */ -void cpu_intr_alloc(cpu_t *cp, int n); /* allocate interrupt threads */ - -/* - * Routines for checking CPU states. - */ -int cpu_is_online(cpu_t *); /* check if CPU is online */ -int cpu_is_nointr(cpu_t *); /* check if CPU can service intrs */ -int cpu_is_active(cpu_t *); /* check if CPU can run threads */ -int cpu_is_offline(cpu_t *); /* check if CPU is offline */ -int cpu_is_poweredoff(cpu_t *); /* check if CPU is powered off */ - -int cpu_flagged_online(cpu_flag_t); /* flags show CPU is online */ -int cpu_flagged_nointr(cpu_flag_t); /* flags show CPU not handling intrs */ -int cpu_flagged_active(cpu_flag_t); /* flags show CPU scheduling threads */ -int cpu_flagged_offline(cpu_flag_t); /* flags show CPU is offline */ -int cpu_flagged_poweredoff(cpu_flag_t); /* flags show CPU is powered off */ - -/* - * The processor_info(2) state of a CPU is a simplified representation suitable - * for use by an application program. Kernel subsystems should utilize the - * internal per-CPU state as given by the cpu_flags member of the cpu structure, - * as this information may include platform- or architecture-specific state - * critical to a subsystem's disposition of a particular CPU. - */ -void cpu_set_state(cpu_t *); /* record/timestamp current state */ -int cpu_get_state(cpu_t *); /* get current cpu state */ -const char *cpu_get_state_str(cpu_t *); /* get current cpu state as string */ - - -void cpu_set_curr_clock(uint64_t); /* indicate the current CPU's freq */ -void cpu_set_supp_freqs(cpu_t *, const char *); /* set the CPU supported */ - /* frequencies */ - -int cpu_configure(int); -int cpu_unconfigure(int); -void cpu_destroy_bound_threads(cpu_t *cp); - -extern int cpu_bind_thread(kthread_t *tp, processorid_t bind, - processorid_t *obind, int *error); -extern int cpu_unbind(processorid_t cpu_id, boolean_t force); -extern void thread_affinity_set(kthread_t *t, int cpu_id); -extern void thread_affinity_clear(kthread_t *t); -extern void affinity_set(int cpu_id); -extern void affinity_clear(void); -extern void init_cpu_mstate(struct cpu *, int); -extern void term_cpu_mstate(struct cpu *); -extern void new_cpu_mstate(int, hrtime_t); -extern void get_cpu_mstate(struct cpu *, hrtime_t *); -extern void thread_nomigrate(void); -extern void thread_allowmigrate(void); -extern void weakbinding_stop(void); -extern void weakbinding_start(void); - -/* - * The following routines affect the CPUs participation in interrupt processing, - * if that is applicable on the architecture. This only affects interrupts - * which aren't directed at the processor (not cross calls). - * - * cpu_disable_intr returns non-zero if interrupts were previously enabled. - */ -int cpu_disable_intr(struct cpu *cp); /* stop issuing interrupts to cpu */ -void cpu_enable_intr(struct cpu *cp); /* start issuing interrupts to cpu */ - -/* - * The mutex cpu_lock protects cpu_flags for all CPUs, as well as the ncpus - * and ncpus_online counts. - */ -extern kmutex_t cpu_lock; /* lock protecting CPU data */ - -/* - * CPU state change events - * - * Various subsystems need to know when CPUs change their state. They get this - * information by registering CPU state change callbacks using - * register_cpu_setup_func(). Whenever any CPU changes its state, the callback - * function is called. The callback function is passed three arguments: - * - * Event, described by cpu_setup_t - * CPU ID - * Transparent pointer passed when registering the callback - * - * The callback function is called with cpu_lock held. The return value from the - * callback function is usually ignored, except for CPU_CONFIG and CPU_UNCONFIG - * events. For these two events, non-zero return value indicates a failure and - * prevents successful completion of the operation. - * - * New events may be added in the future. Callback functions should ignore any - * events that they do not understand. - * - * The following events provide notification callbacks: - * - * CPU_INIT A new CPU is started and added to the list of active CPUs - * This event is only used during boot - * - * CPU_CONFIG A newly inserted CPU is prepared for starting running code - * This event is called by DR code - * - * CPU_UNCONFIG CPU has been powered off and needs cleanup - * This event is called by DR code - * - * CPU_ON CPU is enabled but does not run anything yet - * - * CPU_INTR_ON CPU is enabled and has interrupts enabled - * - * CPU_OFF CPU is going offline but can still run threads - * - * CPU_CPUPART_OUT CPU is going to move out of its partition - * - * CPU_CPUPART_IN CPU is going to move to a new partition - * - * CPU_SETUP CPU is set up during boot and can run threads - */ -typedef enum { - CPU_INIT, - CPU_CONFIG, - CPU_UNCONFIG, - CPU_ON, - CPU_OFF, - CPU_CPUPART_IN, - CPU_CPUPART_OUT, - CPU_SETUP, - CPU_INTR_ON -} cpu_setup_t; - -typedef int cpu_setup_func_t(cpu_setup_t, int, void *); - -/* - * Routines used to register interest in cpu's being added to or removed - * from the system. - */ -extern void register_cpu_setup_func(cpu_setup_func_t *, void *); -extern void unregister_cpu_setup_func(cpu_setup_func_t *, void *); -extern void cpu_state_change_notify(int, cpu_setup_t); - -/* - * Call specified function on the given CPU - */ -typedef void (*cpu_call_func_t)(uintptr_t, uintptr_t); -extern void cpu_call(cpu_t *, cpu_call_func_t, uintptr_t, uintptr_t); - - -/* - * Create various strings that describe the given CPU for the - * processor_info system call and configuration-related kstats. - */ -#define CPU_IDSTRLEN 100 - -extern void init_cpu_info(struct cpu *); -extern void populate_idstr(struct cpu *); -extern void cpu_vm_data_init(struct cpu *); -extern void cpu_vm_data_destroy(struct cpu *); - -#endif /* _KERNEL || _FAKE_KERNEL */ - -#ifdef __cplusplus -} -#endif - -#endif /* _SYS_CPUVAR_H */ |