xref: /illumos-gate/usr/src/uts/common/sys/cpuvar.h (revision affbd3ccca8e26191a210ec9f9ffae170f919afd)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate #ifndef _SYS_CPUVAR_H
287c478bd9Sstevel@tonic-gate #define	_SYS_CPUVAR_H
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
317c478bd9Sstevel@tonic-gate 
327c478bd9Sstevel@tonic-gate #include <sys/thread.h>
337c478bd9Sstevel@tonic-gate #include <sys/sysinfo.h>	/* has cpu_stat_t definition */
347c478bd9Sstevel@tonic-gate #include <sys/disp.h>
357c478bd9Sstevel@tonic-gate #include <sys/processor.h>
367c478bd9Sstevel@tonic-gate 
377c478bd9Sstevel@tonic-gate #if (defined(_KERNEL) || defined(_KMEMUSER)) && defined(_MACHDEP)
387c478bd9Sstevel@tonic-gate #include <sys/machcpuvar.h>
397c478bd9Sstevel@tonic-gate #endif
407c478bd9Sstevel@tonic-gate 
417c478bd9Sstevel@tonic-gate #include <sys/types.h>
427c478bd9Sstevel@tonic-gate #include <sys/file.h>
437c478bd9Sstevel@tonic-gate #include <sys/bitmap.h>
447c478bd9Sstevel@tonic-gate #include <sys/rwlock.h>
457c478bd9Sstevel@tonic-gate #include <sys/msacct.h>
467c478bd9Sstevel@tonic-gate #if defined(__GNUC__) && defined(_ASM_INLINES) && defined(_KERNEL)
477c478bd9Sstevel@tonic-gate #include <asm/cpuvar.h>
487c478bd9Sstevel@tonic-gate #endif
497c478bd9Sstevel@tonic-gate 
507c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
517c478bd9Sstevel@tonic-gate extern "C" {
527c478bd9Sstevel@tonic-gate #endif
537c478bd9Sstevel@tonic-gate 
547c478bd9Sstevel@tonic-gate struct squeue_set_s;
557c478bd9Sstevel@tonic-gate 
567c478bd9Sstevel@tonic-gate #define	CPU_CACHE_COHERENCE_SIZE	64
577c478bd9Sstevel@tonic-gate #define	S_LOADAVG_SZ	11
587c478bd9Sstevel@tonic-gate #define	S_MOVAVG_SZ	10
597c478bd9Sstevel@tonic-gate 
607c478bd9Sstevel@tonic-gate struct loadavg_s {
617c478bd9Sstevel@tonic-gate 	int lg_cur;		/* current loadavg entry */
627c478bd9Sstevel@tonic-gate 	unsigned int lg_len;	/* number entries recorded */
637c478bd9Sstevel@tonic-gate 	hrtime_t lg_total;	/* used to temporarily hold load totals */
647c478bd9Sstevel@tonic-gate 	hrtime_t lg_loads[S_LOADAVG_SZ];	/* table of recorded entries */
657c478bd9Sstevel@tonic-gate };
667c478bd9Sstevel@tonic-gate 
677c478bd9Sstevel@tonic-gate /*
687c478bd9Sstevel@tonic-gate  * For fast event tracing.
697c478bd9Sstevel@tonic-gate  */
707c478bd9Sstevel@tonic-gate struct ftrace_record;
717c478bd9Sstevel@tonic-gate typedef struct ftrace_data {
727c478bd9Sstevel@tonic-gate 	int			ftd_state;	/* ftrace flags */
737c478bd9Sstevel@tonic-gate 	kmutex_t		ftd_mutex;	/* ftrace buffer lock */
747c478bd9Sstevel@tonic-gate 	struct ftrace_record	*ftd_cur;	/* current record */
757c478bd9Sstevel@tonic-gate 	struct ftrace_record	*ftd_first;	/* first record */
767c478bd9Sstevel@tonic-gate 	struct ftrace_record	*ftd_last;	/* last record */
777c478bd9Sstevel@tonic-gate } ftrace_data_t;
787c478bd9Sstevel@tonic-gate 
797c478bd9Sstevel@tonic-gate struct cyc_cpu;
807c478bd9Sstevel@tonic-gate struct nvlist;
817c478bd9Sstevel@tonic-gate 
827c478bd9Sstevel@tonic-gate /*
837c478bd9Sstevel@tonic-gate  * Per-CPU data.
847c478bd9Sstevel@tonic-gate  */
857c478bd9Sstevel@tonic-gate typedef struct cpu {
867c478bd9Sstevel@tonic-gate 	processorid_t	cpu_id;			/* CPU number */
877c478bd9Sstevel@tonic-gate 	processorid_t	cpu_seqid;	/* sequential CPU id (0..ncpus-1) */
887c478bd9Sstevel@tonic-gate 	volatile cpu_flag_t cpu_flags;		/* flags indicating CPU state */
897c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_self;		/* pointer to itself */
907c478bd9Sstevel@tonic-gate 	kthread_t	*cpu_thread;		/* current thread */
917c478bd9Sstevel@tonic-gate 	kthread_t	*cpu_idle_thread;	/* idle thread for this CPU */
927c478bd9Sstevel@tonic-gate 	kthread_t	*cpu_pause_thread;	/* pause thread for this CPU */
937c478bd9Sstevel@tonic-gate 	klwp_id_t	cpu_lwp;		/* current lwp (if any) */
947c478bd9Sstevel@tonic-gate 	klwp_id_t	cpu_fpowner;		/* currently loaded fpu owner */
957c478bd9Sstevel@tonic-gate 	struct cpupart	*cpu_part;		/* partition with this CPU */
967c478bd9Sstevel@tonic-gate 	struct lgrp_ld	*cpu_lpl;		/* pointer to this cpu's load */
977c478bd9Sstevel@tonic-gate 	struct chip	*cpu_chip;		/* cpu's chip data */
987c478bd9Sstevel@tonic-gate 	int		cpu_rechoose;		/* cpu's rechoose_interval */
997c478bd9Sstevel@tonic-gate 	int		cpu_cache_offset;	/* see kmem.c for details */
1007c478bd9Sstevel@tonic-gate 
1017c478bd9Sstevel@tonic-gate 	/*
1027c478bd9Sstevel@tonic-gate 	 * Links to other CPUs.  It is safe to walk these lists if
1037c478bd9Sstevel@tonic-gate 	 * one of the following is true:
1047c478bd9Sstevel@tonic-gate 	 * 	- cpu_lock held
1057c478bd9Sstevel@tonic-gate 	 * 	- preemption disabled via kpreempt_disable
1067c478bd9Sstevel@tonic-gate 	 * 	- PIL >= DISP_LEVEL
1077c478bd9Sstevel@tonic-gate 	 * 	- acting thread is an interrupt thread
1087c478bd9Sstevel@tonic-gate 	 * 	- all other CPUs are paused
1097c478bd9Sstevel@tonic-gate 	 */
1107c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_next;		/* next existing CPU */
1117c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_prev;		/* prev existing CPU */
1127c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_next_onln;		/* next online (enabled) CPU */
1137c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_prev_onln;		/* prev online (enabled) CPU */
1147c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_next_part;		/* next CPU in partition */
1157c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_prev_part;		/* prev CPU in partition */
1167c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_next_lgrp;		/* next CPU in latency group */
1177c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_prev_lgrp;		/* prev CPU in latency group */
1187c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_next_chip;		/* next CPU on chip */
1197c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_prev_chip;		/* prev CPU on chip */
1207c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_next_lpl;		/* next CPU in lgrp partition */
1217c478bd9Sstevel@tonic-gate 	struct cpu	*cpu_prev_lpl;
1227c478bd9Sstevel@tonic-gate 	void		*cpu_reserved[4];	/* reserved for future use */
1237c478bd9Sstevel@tonic-gate 
1247c478bd9Sstevel@tonic-gate 	/*
1257c478bd9Sstevel@tonic-gate 	 * Scheduling variables.
1267c478bd9Sstevel@tonic-gate 	 */
1277c478bd9Sstevel@tonic-gate 	disp_t		*cpu_disp;		/* dispatch queue data */
1287c478bd9Sstevel@tonic-gate 	/*
1297c478bd9Sstevel@tonic-gate 	 * Note that cpu_disp is set before the CPU is added to the system
1307c478bd9Sstevel@tonic-gate 	 * and is never modified.  Hence, no additional locking is needed
1317c478bd9Sstevel@tonic-gate 	 * beyond what's necessary to access the cpu_t structure.
1327c478bd9Sstevel@tonic-gate 	 */
1337c478bd9Sstevel@tonic-gate 	char		cpu_runrun;	/* scheduling flag - set to preempt */
1347c478bd9Sstevel@tonic-gate 	char		cpu_kprunrun;		/* force kernel preemption */
1357c478bd9Sstevel@tonic-gate 	pri_t		cpu_chosen_level; 	/* priority at which cpu */
1367c478bd9Sstevel@tonic-gate 						/* was chosen for scheduling */
1377c478bd9Sstevel@tonic-gate 	kthread_t	*cpu_dispthread; /* thread selected for dispatch */
1387c478bd9Sstevel@tonic-gate 	disp_lock_t	cpu_thread_lock; /* dispatcher lock on current thread */
1397c478bd9Sstevel@tonic-gate 	uint8_t		cpu_disp_flags;	/* flags used by dispatcher */
1407c478bd9Sstevel@tonic-gate 	/*
1417c478bd9Sstevel@tonic-gate 	 * The following field is updated when ever the cpu_dispthread
1427c478bd9Sstevel@tonic-gate 	 * changes. Also in places, where the current thread(cpu_dispthread)
1437c478bd9Sstevel@tonic-gate 	 * priority changes. This is used in disp_lowpri_cpu()
1447c478bd9Sstevel@tonic-gate 	 */
1457c478bd9Sstevel@tonic-gate 	pri_t		cpu_dispatch_pri; /* priority of cpu_dispthread */
1467c478bd9Sstevel@tonic-gate 	clock_t		cpu_last_swtch;	/* last time switched to new thread */
1477c478bd9Sstevel@tonic-gate 
1487c478bd9Sstevel@tonic-gate 	/*
1497c478bd9Sstevel@tonic-gate 	 * Interrupt data.
1507c478bd9Sstevel@tonic-gate 	 */
1517c478bd9Sstevel@tonic-gate 	caddr_t		cpu_intr_stack;	/* interrupt stack */
1527c478bd9Sstevel@tonic-gate 	kthread_t	*cpu_intr_thread; /* interrupt thread list */
1537c478bd9Sstevel@tonic-gate 	uint_t		cpu_intr_actv;	/* interrupt levels active (bitmask) */
1547c478bd9Sstevel@tonic-gate 	int		cpu_base_spl;	/* priority for highest rupt active */
1557c478bd9Sstevel@tonic-gate 
1567c478bd9Sstevel@tonic-gate 	/*
1577c478bd9Sstevel@tonic-gate 	 * Statistics.
1587c478bd9Sstevel@tonic-gate 	 */
1597c478bd9Sstevel@tonic-gate 	cpu_stats_t	cpu_stats;		/* per-CPU statistics */
1607c478bd9Sstevel@tonic-gate 	struct kstat	*cpu_info_kstat;	/* kstat for cpu info */
1617c478bd9Sstevel@tonic-gate 
1627c478bd9Sstevel@tonic-gate 	uintptr_t	cpu_profile_pc;	/* kernel PC in profile interrupt */
1637c478bd9Sstevel@tonic-gate 	uintptr_t	cpu_profile_upc; /* user PC in profile interrupt */
1647c478bd9Sstevel@tonic-gate 	uintptr_t	cpu_profile_pil; /* PIL when profile interrupted */
1657c478bd9Sstevel@tonic-gate 
1667c478bd9Sstevel@tonic-gate 	ftrace_data_t	cpu_ftrace;		/* per cpu ftrace data */
1677c478bd9Sstevel@tonic-gate 
1687c478bd9Sstevel@tonic-gate 	clock_t		cpu_deadman_lbolt;	/* used by deadman() */
1697c478bd9Sstevel@tonic-gate 	uint_t		cpu_deadman_countdown;	/* used by deadman() */
1707c478bd9Sstevel@tonic-gate 
1717c478bd9Sstevel@tonic-gate 	kmutex_t	cpu_cpc_ctxlock; /* protects context for idle thread */
1727c478bd9Sstevel@tonic-gate 	kcpc_ctx_t	*cpu_cpc_ctx;	/* performance counter context */
1737c478bd9Sstevel@tonic-gate 
1747c478bd9Sstevel@tonic-gate 	/*
1757c478bd9Sstevel@tonic-gate 	 * Configuration information for the processor_info system call.
1767c478bd9Sstevel@tonic-gate 	 */
1777c478bd9Sstevel@tonic-gate 	processor_info_t cpu_type_info;	/* config info */
1787c478bd9Sstevel@tonic-gate 	time_t		cpu_state_begin; /* when CPU entered current state */
1797c478bd9Sstevel@tonic-gate 	char		cpu_cpr_flags;	/* CPR related info */
1807c478bd9Sstevel@tonic-gate 	struct cyc_cpu	*cpu_cyclic;	/* per cpu cyclic subsystem data */
1817c478bd9Sstevel@tonic-gate 	struct squeue_set_s *cpu_squeue_set;	/* per cpu squeue set */
1827c478bd9Sstevel@tonic-gate 	struct nvlist	*cpu_props;	/* pool-related properties */
1837c478bd9Sstevel@tonic-gate 
1847c478bd9Sstevel@tonic-gate 	krwlock_t	cpu_ft_lock;		/* DTrace: fasttrap lock */
1857c478bd9Sstevel@tonic-gate 	uintptr_t	cpu_dtrace_caller;	/* DTrace: caller, if any */
1867c478bd9Sstevel@tonic-gate 	hrtime_t	cpu_dtrace_chillmark;	/* DTrace: chill mark time */
1877c478bd9Sstevel@tonic-gate 	hrtime_t	cpu_dtrace_chilled;	/* DTrace: total chill time */
1887c478bd9Sstevel@tonic-gate 
1897c478bd9Sstevel@tonic-gate 	uint16_t	cpu_mstate;		/* cpu microstate */
1907c478bd9Sstevel@tonic-gate 	hrtime_t	cpu_mstate_start;	/* cpu microstate start time */
1917c478bd9Sstevel@tonic-gate 	hrtime_t	cpu_acct[NCMSTATES];	/* cpu microstate data */
1927c478bd9Sstevel@tonic-gate 	hrtime_t	cpu_waitrq;		/* cpu run-queue wait time */
1937c478bd9Sstevel@tonic-gate 	struct loadavg_s cpu_loadavg;		/* loadavg info for this cpu */
1947c478bd9Sstevel@tonic-gate 
1957c478bd9Sstevel@tonic-gate 	char		*cpu_idstr;	/* for printing and debugging */
1967c478bd9Sstevel@tonic-gate 	char		*cpu_brandstr;	/* for printing */
1977c478bd9Sstevel@tonic-gate 
1987c478bd9Sstevel@tonic-gate 	/*
1997c478bd9Sstevel@tonic-gate 	 * Sum of all device interrupt weights that are currently directed at
2007c478bd9Sstevel@tonic-gate 	 * this cpu. Cleared at start of interrupt redistribution.
2017c478bd9Sstevel@tonic-gate 	 */
2027c478bd9Sstevel@tonic-gate 	int32_t		cpu_intr_weight;
203*affbd3ccSkchow 	void		*cpu_vm_data;
2047c478bd9Sstevel@tonic-gate 
2057c478bd9Sstevel@tonic-gate #if (defined(_KERNEL) || defined(_KMEMUSER)) && defined(_MACHDEP)
2067c478bd9Sstevel@tonic-gate 	/*
2077c478bd9Sstevel@tonic-gate 	 * XXX - needs to be fixed. Structure size should not change.
2087c478bd9Sstevel@tonic-gate 	 *	 probably needs to be a pointer to an opaque structure.
2097c478bd9Sstevel@tonic-gate 	 * XXX - this is OK as long as cpu structs aren't in an array.
2107c478bd9Sstevel@tonic-gate 	 *	 A user program will either read the first part,
2117c478bd9Sstevel@tonic-gate 	 *	 which is machine-independent, or read the whole thing.
2127c478bd9Sstevel@tonic-gate 	 */
2137c478bd9Sstevel@tonic-gate 	struct machcpu	cpu_m;		/* per architecture info */
2147c478bd9Sstevel@tonic-gate #endif
2157c478bd9Sstevel@tonic-gate } cpu_t;
2167c478bd9Sstevel@tonic-gate 
2177c478bd9Sstevel@tonic-gate /*
2187c478bd9Sstevel@tonic-gate  * The cpu_core structure consists of per-CPU state available in any context.
2197c478bd9Sstevel@tonic-gate  * On some architectures, this may mean that the page(s) containing the
2207c478bd9Sstevel@tonic-gate  * NCPU-sized array of cpu_core structures must be locked in the TLB -- it
2217c478bd9Sstevel@tonic-gate  * is up to the platform to assure that this is performed properly.  Note that
2227c478bd9Sstevel@tonic-gate  * the structure is sized to avoid false sharing.
2237c478bd9Sstevel@tonic-gate  */
2247c478bd9Sstevel@tonic-gate #define	CPUC_SIZE		(sizeof (uint16_t) + sizeof (uintptr_t) + \
2257c478bd9Sstevel@tonic-gate 				sizeof (kmutex_t))
2267c478bd9Sstevel@tonic-gate #define	CPUC_PADSIZE		CPU_CACHE_COHERENCE_SIZE - CPUC_SIZE
2277c478bd9Sstevel@tonic-gate 
2287c478bd9Sstevel@tonic-gate typedef struct cpu_core {
2297c478bd9Sstevel@tonic-gate 	uint16_t	cpuc_dtrace_flags;	/* DTrace flags */
2307c478bd9Sstevel@tonic-gate 	uint8_t		cpuc_pad[CPUC_PADSIZE];	/* padding */
2317c478bd9Sstevel@tonic-gate 	uintptr_t	cpuc_dtrace_illval;	/* DTrace illegal value */
2327c478bd9Sstevel@tonic-gate 	kmutex_t	cpuc_pid_lock;		/* DTrace pid provider lock */
2337c478bd9Sstevel@tonic-gate } cpu_core_t;
2347c478bd9Sstevel@tonic-gate 
2357c478bd9Sstevel@tonic-gate #ifdef _KERNEL
2367c478bd9Sstevel@tonic-gate extern cpu_core_t cpu_core[];
2377c478bd9Sstevel@tonic-gate #endif /* _KERNEL */
2387c478bd9Sstevel@tonic-gate 
2397c478bd9Sstevel@tonic-gate /*
2407c478bd9Sstevel@tonic-gate  * CPU_ON_INTR() macro. Returns non-zero if currently on interrupt stack.
2417c478bd9Sstevel@tonic-gate  * Note that this isn't a test for a high PIL.  For example, cpu_intr_actv
2427c478bd9Sstevel@tonic-gate  * does not get updated when we go through sys_trap from TL>0 at high PIL.
2437c478bd9Sstevel@tonic-gate  * getpil() should be used instead to check for PIL levels.
2447c478bd9Sstevel@tonic-gate  */
2457c478bd9Sstevel@tonic-gate #define	CPU_ON_INTR(cpup) ((cpup)->cpu_intr_actv >> (LOCK_LEVEL + 1))
2467c478bd9Sstevel@tonic-gate 
2477c478bd9Sstevel@tonic-gate #if defined(_KERNEL) || defined(_KMEMUSER)
2487c478bd9Sstevel@tonic-gate 
2497c478bd9Sstevel@tonic-gate #define	INTR_STACK_SIZE	MAX(DEFAULTSTKSZ, PAGESIZE)
2507c478bd9Sstevel@tonic-gate 
2517c478bd9Sstevel@tonic-gate /* MEMBERS PROTECTED BY "atomicity": cpu_flags */
2527c478bd9Sstevel@tonic-gate 
2537c478bd9Sstevel@tonic-gate /*
2547c478bd9Sstevel@tonic-gate  * Flags in the CPU structure.
2557c478bd9Sstevel@tonic-gate  *
2567c478bd9Sstevel@tonic-gate  * These are protected by cpu_lock (except during creation).
2577c478bd9Sstevel@tonic-gate  *
2587c478bd9Sstevel@tonic-gate  * Offlined-CPUs have three stages of being offline:
2597c478bd9Sstevel@tonic-gate  *
2607c478bd9Sstevel@tonic-gate  * CPU_ENABLE indicates that the CPU is participating in I/O interrupts
2617c478bd9Sstevel@tonic-gate  * that can be directed at a number of different CPUs.  If CPU_ENABLE
2627c478bd9Sstevel@tonic-gate  * is off, the CPU will not be given interrupts that can be sent elsewhere,
2637c478bd9Sstevel@tonic-gate  * but will still get interrupts from devices associated with that CPU only,
2647c478bd9Sstevel@tonic-gate  * and from other CPUs.
2657c478bd9Sstevel@tonic-gate  *
2667c478bd9Sstevel@tonic-gate  * CPU_OFFLINE indicates that the dispatcher should not allow any threads
2677c478bd9Sstevel@tonic-gate  * other than interrupt threads to run on that CPU.  A CPU will not have
2687c478bd9Sstevel@tonic-gate  * CPU_OFFLINE set if there are any bound threads (besides interrupts).
2697c478bd9Sstevel@tonic-gate  *
2707c478bd9Sstevel@tonic-gate  * CPU_QUIESCED is set if p_offline was able to completely turn idle the
2717c478bd9Sstevel@tonic-gate  * CPU and it will not have to run interrupt threads.  In this case it'll
2727c478bd9Sstevel@tonic-gate  * stay in the idle loop until CPU_QUIESCED is turned off.
2737c478bd9Sstevel@tonic-gate  *
2747c478bd9Sstevel@tonic-gate  * CPU_FROZEN is used only by CPR to mark CPUs that have been successfully
2757c478bd9Sstevel@tonic-gate  * suspended (in the suspend path), or have yet to be resumed (in the resume
2767c478bd9Sstevel@tonic-gate  * case).
2777c478bd9Sstevel@tonic-gate  *
2787c478bd9Sstevel@tonic-gate  * On some platforms CPUs can be individually powered off.
2797c478bd9Sstevel@tonic-gate  * The following flags are set for powered off CPUs: CPU_QUIESCED,
2807c478bd9Sstevel@tonic-gate  * CPU_OFFLINE, and CPU_POWEROFF.  The following flags are cleared:
2817c478bd9Sstevel@tonic-gate  * CPU_RUNNING, CPU_READY, CPU_EXISTS, and CPU_ENABLE.
2827c478bd9Sstevel@tonic-gate  */
2837c478bd9Sstevel@tonic-gate #define	CPU_RUNNING	0x001		/* CPU running */
2847c478bd9Sstevel@tonic-gate #define	CPU_READY	0x002		/* CPU ready for cross-calls */
2857c478bd9Sstevel@tonic-gate #define	CPU_QUIESCED	0x004		/* CPU will stay in idle */
2867c478bd9Sstevel@tonic-gate #define	CPU_EXISTS	0x008		/* CPU is configured */
2877c478bd9Sstevel@tonic-gate #define	CPU_ENABLE	0x010		/* CPU enabled for interrupts */
2887c478bd9Sstevel@tonic-gate #define	CPU_OFFLINE	0x020		/* CPU offline via p_online */
2897c478bd9Sstevel@tonic-gate #define	CPU_POWEROFF	0x040		/* CPU is powered off */
2907c478bd9Sstevel@tonic-gate #define	CPU_FROZEN	0x080		/* CPU is frozen via CPR suspend */
2917c478bd9Sstevel@tonic-gate #define	CPU_SPARE	0x100		/* CPU offline available for use */
2927c478bd9Sstevel@tonic-gate #define	CPU_FAULTED	0x200		/* CPU offline diagnosed faulty */
2937c478bd9Sstevel@tonic-gate 
2947c478bd9Sstevel@tonic-gate #define	CPU_ACTIVE(cpu)	(((cpu)->cpu_flags & CPU_OFFLINE) == 0)
2957c478bd9Sstevel@tonic-gate 
2967c478bd9Sstevel@tonic-gate /*
2977c478bd9Sstevel@tonic-gate  * Flags for cpu_offline(), cpu_faulted(), and cpu_spare().
2987c478bd9Sstevel@tonic-gate  */
2997c478bd9Sstevel@tonic-gate #define	CPU_FORCED	0x0001		/* Force CPU offline */
3007c478bd9Sstevel@tonic-gate 
3017c478bd9Sstevel@tonic-gate /*
3027c478bd9Sstevel@tonic-gate  * DTrace flags.
3037c478bd9Sstevel@tonic-gate  */
3047c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_NOFAULT	0x0001	/* Don't fault */
3057c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_DROP		0x0002	/* Drop this ECB */
3067c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_BADADDR	0x0004	/* DTrace fault: bad address */
3077c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_BADALIGN	0x0008	/* DTrace fault: bad alignment */
3087c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_DIVZERO	0x0010	/* DTrace fault: divide by zero */
3097c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_ILLOP	0x0020	/* DTrace fault: illegal operation */
3107c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_NOSCRATCH	0x0040	/* DTrace fault: out of scratch */
3117c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_KPRIV	0x0080	/* DTrace fault: bad kernel access */
3127c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_UPRIV	0x0100	/* DTrace fault: bad user access */
3137c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_TUPOFLOW	0x0200	/* DTrace fault: tuple stack overflow */
3147c478bd9Sstevel@tonic-gate #if defined(__sparc)
3157c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_FAKERESTORE	0x0400	/* pid provider hint to getreg */
3167c478bd9Sstevel@tonic-gate #endif
3177c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_ENTRY	0x0800	/* pid provider hint to ustack() */
3187c478bd9Sstevel@tonic-gate 
3197c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_FAULT	(CPU_DTRACE_BADADDR | CPU_DTRACE_BADALIGN | \
3207c478bd9Sstevel@tonic-gate 				CPU_DTRACE_DIVZERO | CPU_DTRACE_ILLOP | \
3217c478bd9Sstevel@tonic-gate 				CPU_DTRACE_NOSCRATCH | CPU_DTRACE_KPRIV | \
3227c478bd9Sstevel@tonic-gate 				CPU_DTRACE_UPRIV | CPU_DTRACE_TUPOFLOW)
3237c478bd9Sstevel@tonic-gate #define	CPU_DTRACE_ERROR	(CPU_DTRACE_FAULT | CPU_DTRACE_DROP)
3247c478bd9Sstevel@tonic-gate 
3257c478bd9Sstevel@tonic-gate /*
3267c478bd9Sstevel@tonic-gate  * Dispatcher flags
3277c478bd9Sstevel@tonic-gate  * These flags must be changed only by the current CPU.
3287c478bd9Sstevel@tonic-gate  */
3297c478bd9Sstevel@tonic-gate #define	CPU_DISP_DONTSTEAL	0x01	/* CPU undergoing context swtch */
3307c478bd9Sstevel@tonic-gate #define	CPU_DISP_HALTED		0x02	/* CPU halted waiting for interrupt */
3317c478bd9Sstevel@tonic-gate 
3327c478bd9Sstevel@tonic-gate 
3337c478bd9Sstevel@tonic-gate #endif /* _KERNEL || _KMEMUSER */
3347c478bd9Sstevel@tonic-gate 
3357c478bd9Sstevel@tonic-gate #if (defined(_KERNEL) || defined(_KMEMUSER)) && defined(_MACHDEP)
3367c478bd9Sstevel@tonic-gate 
3377c478bd9Sstevel@tonic-gate /*
3387c478bd9Sstevel@tonic-gate  * Macros for manipulating sets of CPUs as a bitmap.  Note that this
3397c478bd9Sstevel@tonic-gate  * bitmap may vary in size depending on the maximum CPU id a specific
3407c478bd9Sstevel@tonic-gate  * platform supports.  This may be different than the number of CPUs
3417c478bd9Sstevel@tonic-gate  * the platform supports, since CPU ids can be sparse.  We define two
3427c478bd9Sstevel@tonic-gate  * sets of macros; one for platforms where the maximum CPU id is less
3437c478bd9Sstevel@tonic-gate  * than the number of bits in a single word (32 in a 32-bit kernel,
3447c478bd9Sstevel@tonic-gate  * 64 in a 64-bit kernel), and one for platforms that require bitmaps
3457c478bd9Sstevel@tonic-gate  * of more than one word.
3467c478bd9Sstevel@tonic-gate  */
3477c478bd9Sstevel@tonic-gate 
3487c478bd9Sstevel@tonic-gate #define	CPUSET_WORDS	BT_BITOUL(NCPU)
3497c478bd9Sstevel@tonic-gate #define	CPUSET_NOTINSET	((uint_t)-1)
3507c478bd9Sstevel@tonic-gate 
3517c478bd9Sstevel@tonic-gate #if	CPUSET_WORDS > 1
3527c478bd9Sstevel@tonic-gate 
3537c478bd9Sstevel@tonic-gate typedef struct cpuset {
3547c478bd9Sstevel@tonic-gate 	ulong_t	cpub[CPUSET_WORDS];
3557c478bd9Sstevel@tonic-gate } cpuset_t;
3567c478bd9Sstevel@tonic-gate 
3577c478bd9Sstevel@tonic-gate /*
3587c478bd9Sstevel@tonic-gate  * Private functions for manipulating cpusets that do not fit in a
3597c478bd9Sstevel@tonic-gate  * single word.  These should not be used directly; instead the
3607c478bd9Sstevel@tonic-gate  * CPUSET_* macros should be used so the code will be portable
3617c478bd9Sstevel@tonic-gate  * across different definitions of NCPU.
3627c478bd9Sstevel@tonic-gate  */
3637c478bd9Sstevel@tonic-gate extern	void	cpuset_all(cpuset_t *);
3647c478bd9Sstevel@tonic-gate extern	void	cpuset_all_but(cpuset_t *, uint_t);
3657c478bd9Sstevel@tonic-gate extern	int	cpuset_isnull(cpuset_t *);
3667c478bd9Sstevel@tonic-gate extern	int	cpuset_cmp(cpuset_t *, cpuset_t *);
3677c478bd9Sstevel@tonic-gate extern	void	cpuset_only(cpuset_t *, uint_t);
3687c478bd9Sstevel@tonic-gate extern	uint_t	cpuset_find(cpuset_t *);
3697c478bd9Sstevel@tonic-gate 
3707c478bd9Sstevel@tonic-gate #define	CPUSET_ALL(set)			cpuset_all(&(set))
3717c478bd9Sstevel@tonic-gate #define	CPUSET_ALL_BUT(set, cpu)	cpuset_all_but(&(set), cpu)
3727c478bd9Sstevel@tonic-gate #define	CPUSET_ONLY(set, cpu)		cpuset_only(&(set), cpu)
3737c478bd9Sstevel@tonic-gate #define	CPU_IN_SET(set, cpu)		BT_TEST((set).cpub, cpu)
3747c478bd9Sstevel@tonic-gate #define	CPUSET_ADD(set, cpu)		BT_SET((set).cpub, cpu)
3757c478bd9Sstevel@tonic-gate #define	CPUSET_DEL(set, cpu)		BT_CLEAR((set).cpub, cpu)
3767c478bd9Sstevel@tonic-gate #define	CPUSET_ISNULL(set)		cpuset_isnull(&(set))
3777c478bd9Sstevel@tonic-gate #define	CPUSET_ISEQUAL(set1, set2)	cpuset_cmp(&(set1), &(set2))
3787c478bd9Sstevel@tonic-gate 
3797c478bd9Sstevel@tonic-gate /*
3807c478bd9Sstevel@tonic-gate  * Find one CPU in the cpuset.
3817c478bd9Sstevel@tonic-gate  * Sets "cpu" to the id of the found CPU, or CPUSET_NOTINSET if no cpu
3827c478bd9Sstevel@tonic-gate  * could be found. (i.e. empty set)
3837c478bd9Sstevel@tonic-gate  */
3847c478bd9Sstevel@tonic-gate #define	CPUSET_FIND(set, cpu)		{		\
3857c478bd9Sstevel@tonic-gate 	cpu = cpuset_find(&(set));			\
3867c478bd9Sstevel@tonic-gate }
3877c478bd9Sstevel@tonic-gate 
3887c478bd9Sstevel@tonic-gate /*
3897c478bd9Sstevel@tonic-gate  * Atomic cpuset operations
3907c478bd9Sstevel@tonic-gate  * These are safe to use for concurrent cpuset manipulations.
3917c478bd9Sstevel@tonic-gate  * "xdel" and "xadd" are exclusive operations, that set "result" to "0"
3927c478bd9Sstevel@tonic-gate  * if the add or del was successful, or "-1" if not successful.
3937c478bd9Sstevel@tonic-gate  * (e.g. attempting to add a cpu to a cpuset that's already there, or
3947c478bd9Sstevel@tonic-gate  * deleting a cpu that's not in the cpuset)
3957c478bd9Sstevel@tonic-gate  */
3967c478bd9Sstevel@tonic-gate 
3977c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_DEL(set, cpu)	BT_ATOMIC_CLEAR((set).cpub, (cpu))
3987c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_ADD(set, cpu)	BT_ATOMIC_SET((set).cpub, (cpu))
3997c478bd9Sstevel@tonic-gate 
4007c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_XADD(set, cpu, result) \
4017c478bd9Sstevel@tonic-gate 	BT_ATOMIC_SET_EXCL((set).cpub, cpu, result)
4027c478bd9Sstevel@tonic-gate 
4037c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_XDEL(set, cpu, result) \
4047c478bd9Sstevel@tonic-gate 	BT_ATOMIC_CLEAR_EXCL((set).cpub, cpu, result)
4057c478bd9Sstevel@tonic-gate 
4067c478bd9Sstevel@tonic-gate 
4077c478bd9Sstevel@tonic-gate #define	CPUSET_OR(set1, set2)		{		\
4087c478bd9Sstevel@tonic-gate 	int _i;						\
4097c478bd9Sstevel@tonic-gate 	for (_i = 0; _i < CPUSET_WORDS; _i++)		\
4107c478bd9Sstevel@tonic-gate 		(set1).cpub[_i] |= (set2).cpub[_i];	\
4117c478bd9Sstevel@tonic-gate }
4127c478bd9Sstevel@tonic-gate 
4137c478bd9Sstevel@tonic-gate #define	CPUSET_AND(set1, set2)		{		\
4147c478bd9Sstevel@tonic-gate 	int _i;						\
4157c478bd9Sstevel@tonic-gate 	for (_i = 0; _i < CPUSET_WORDS; _i++)		\
4167c478bd9Sstevel@tonic-gate 		(set1).cpub[_i] &= (set2).cpub[_i];	\
4177c478bd9Sstevel@tonic-gate }
4187c478bd9Sstevel@tonic-gate 
4197c478bd9Sstevel@tonic-gate #define	CPUSET_ZERO(set)		{		\
4207c478bd9Sstevel@tonic-gate 	int _i;						\
4217c478bd9Sstevel@tonic-gate 	for (_i = 0; _i < CPUSET_WORDS; _i++)		\
4227c478bd9Sstevel@tonic-gate 		(set).cpub[_i] = 0;			\
4237c478bd9Sstevel@tonic-gate }
4247c478bd9Sstevel@tonic-gate 
4257c478bd9Sstevel@tonic-gate #elif	CPUSET_WORDS == 1
4267c478bd9Sstevel@tonic-gate 
4277c478bd9Sstevel@tonic-gate typedef	ulong_t	cpuset_t;	/* a set of CPUs */
4287c478bd9Sstevel@tonic-gate 
4297c478bd9Sstevel@tonic-gate #define	CPUSET(cpu)			(1UL << (cpu))
4307c478bd9Sstevel@tonic-gate 
4317c478bd9Sstevel@tonic-gate #define	CPUSET_ALL(set)			((void)((set) = ~0UL))
4327c478bd9Sstevel@tonic-gate #define	CPUSET_ALL_BUT(set, cpu)	((void)((set) = ~CPUSET(cpu)))
4337c478bd9Sstevel@tonic-gate #define	CPUSET_ONLY(set, cpu)		((void)((set) = CPUSET(cpu)))
4347c478bd9Sstevel@tonic-gate #define	CPU_IN_SET(set, cpu)		((set) & CPUSET(cpu))
4357c478bd9Sstevel@tonic-gate #define	CPUSET_ADD(set, cpu)		((void)((set) |= CPUSET(cpu)))
4367c478bd9Sstevel@tonic-gate #define	CPUSET_DEL(set, cpu)		((void)((set) &= ~CPUSET(cpu)))
4377c478bd9Sstevel@tonic-gate #define	CPUSET_ISNULL(set)		((set) == 0)
4387c478bd9Sstevel@tonic-gate #define	CPUSET_ISEQUAL(set1, set2)	((set1) == (set2))
4397c478bd9Sstevel@tonic-gate #define	CPUSET_OR(set1, set2)		((void)((set1) |= (set2)))
4407c478bd9Sstevel@tonic-gate #define	CPUSET_AND(set1, set2)		((void)((set1) &= (set2)))
4417c478bd9Sstevel@tonic-gate #define	CPUSET_ZERO(set)		((void)((set) = 0))
4427c478bd9Sstevel@tonic-gate 
4437c478bd9Sstevel@tonic-gate #define	CPUSET_FIND(set, cpu)		{		\
4447c478bd9Sstevel@tonic-gate 	cpu = (uint_t)(lowbit(set) - 1);				\
4457c478bd9Sstevel@tonic-gate }
4467c478bd9Sstevel@tonic-gate 
4477c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_DEL(set, cpu)	atomic_and_long(&(set), ~CPUSET(cpu))
4487c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_ADD(set, cpu)	atomic_or_long(&(set), CPUSET(cpu))
4497c478bd9Sstevel@tonic-gate 
4507c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_XADD(set, cpu, result) \
4517c478bd9Sstevel@tonic-gate 	{ result = atomic_set_long_excl(&(set), (cpu)); }
4527c478bd9Sstevel@tonic-gate 
4537c478bd9Sstevel@tonic-gate #define	CPUSET_ATOMIC_XDEL(set, cpu, result) \
4547c478bd9Sstevel@tonic-gate 	{ result = atomic_clear_long_excl(&(set), (cpu)); }
4557c478bd9Sstevel@tonic-gate 
4567c478bd9Sstevel@tonic-gate #else	/* CPUSET_WORDS <= 0 */
4577c478bd9Sstevel@tonic-gate 
4587c478bd9Sstevel@tonic-gate #error NCPU is undefined or invalid
4597c478bd9Sstevel@tonic-gate 
4607c478bd9Sstevel@tonic-gate #endif	/* CPUSET_WORDS	*/
4617c478bd9Sstevel@tonic-gate 
4627c478bd9Sstevel@tonic-gate extern cpuset_t cpu_seqid_inuse;
4637c478bd9Sstevel@tonic-gate 
4647c478bd9Sstevel@tonic-gate #endif	/* (_KERNEL || _KMEMUSER) && _MACHDEP */
4657c478bd9Sstevel@tonic-gate 
4667c478bd9Sstevel@tonic-gate #define	CPU_CPR_OFFLINE		0x0
4677c478bd9Sstevel@tonic-gate #define	CPU_CPR_ONLINE		0x1
4687c478bd9Sstevel@tonic-gate #define	CPU_CPR_IS_OFFLINE(cpu)	(((cpu)->cpu_cpr_flags & CPU_CPR_ONLINE) == 0)
4697c478bd9Sstevel@tonic-gate #define	CPU_SET_CPR_FLAGS(cpu, flag)	((cpu)->cpu_cpr_flags |= flag)
4707c478bd9Sstevel@tonic-gate 
4717c478bd9Sstevel@tonic-gate #if defined(_KERNEL) || defined(_KMEMUSER)
4727c478bd9Sstevel@tonic-gate 
4737c478bd9Sstevel@tonic-gate extern struct cpu	*cpu[];		/* indexed by CPU number */
4747c478bd9Sstevel@tonic-gate extern cpu_t		*cpu_list;	/* list of CPUs */
4757c478bd9Sstevel@tonic-gate extern int		ncpus;		/* number of CPUs present */
4767c478bd9Sstevel@tonic-gate extern int		ncpus_online;	/* number of CPUs not quiesced */
4777c478bd9Sstevel@tonic-gate extern int		max_ncpus;	/* max present before ncpus is known */
4787c478bd9Sstevel@tonic-gate extern int		boot_max_ncpus;	/* like max_ncpus but for real */
4797c478bd9Sstevel@tonic-gate extern processorid_t	max_cpuid;	/* maximum CPU number */
4807c478bd9Sstevel@tonic-gate extern struct cpu	*cpu_inmotion;	/* offline or partition move target */
4817c478bd9Sstevel@tonic-gate 
4827c478bd9Sstevel@tonic-gate #if defined(__i386) || defined(__amd64)
4837c478bd9Sstevel@tonic-gate extern struct cpu *curcpup(void);
4847c478bd9Sstevel@tonic-gate #define	CPU		(curcpup())	/* Pointer to current CPU */
4857c478bd9Sstevel@tonic-gate #else
4867c478bd9Sstevel@tonic-gate #define	CPU		(curthread->t_cpu)	/* Pointer to current CPU */
4877c478bd9Sstevel@tonic-gate #endif
4887c478bd9Sstevel@tonic-gate 
4897c478bd9Sstevel@tonic-gate /*
4907c478bd9Sstevel@tonic-gate  * CPU_CURRENT indicates to thread_affinity_set to use CPU->cpu_id
4917c478bd9Sstevel@tonic-gate  * as the target and to grab cpu_lock instead of requiring the caller
4927c478bd9Sstevel@tonic-gate  * to grab it.
4937c478bd9Sstevel@tonic-gate  */
4947c478bd9Sstevel@tonic-gate #define	CPU_CURRENT	-3
4957c478bd9Sstevel@tonic-gate 
4967c478bd9Sstevel@tonic-gate /*
4977c478bd9Sstevel@tonic-gate  * Per-CPU statistics
4987c478bd9Sstevel@tonic-gate  *
4997c478bd9Sstevel@tonic-gate  * cpu_stats_t contains numerous system and VM-related statistics, in the form
5007c478bd9Sstevel@tonic-gate  * of gauges or monotonically-increasing event occurrence counts.
5017c478bd9Sstevel@tonic-gate  */
5027c478bd9Sstevel@tonic-gate 
5037c478bd9Sstevel@tonic-gate #define	CPU_STATS_ENTER_K()	kpreempt_disable()
5047c478bd9Sstevel@tonic-gate #define	CPU_STATS_EXIT_K()	kpreempt_enable()
5057c478bd9Sstevel@tonic-gate 
5067c478bd9Sstevel@tonic-gate #define	CPU_STATS_ADD_K(class, stat, amount) \
5077c478bd9Sstevel@tonic-gate 	{	kpreempt_disable(); /* keep from switching CPUs */\
5087c478bd9Sstevel@tonic-gate 		CPU_STATS_ADDQ(CPU, class, stat, amount); \
5097c478bd9Sstevel@tonic-gate 		kpreempt_enable(); \
5107c478bd9Sstevel@tonic-gate 	}
5117c478bd9Sstevel@tonic-gate 
5127c478bd9Sstevel@tonic-gate #define	CPU_STATS_ADDQ(cp, class, stat, amount)	{			\
5137c478bd9Sstevel@tonic-gate 	extern void __dtrace_probe___cpu_##class##info_##stat(uint_t,	\
5147c478bd9Sstevel@tonic-gate 	    uint64_t *, cpu_t *);					\
5157c478bd9Sstevel@tonic-gate 	uint64_t *stataddr = &((cp)->cpu_stats.class.stat);		\
5167c478bd9Sstevel@tonic-gate 	__dtrace_probe___cpu_##class##info_##stat((amount),		\
5177c478bd9Sstevel@tonic-gate 	    stataddr, cp);						\
5187c478bd9Sstevel@tonic-gate 	*(stataddr) += (amount);					\
5197c478bd9Sstevel@tonic-gate }
5207c478bd9Sstevel@tonic-gate 
5217c478bd9Sstevel@tonic-gate #define	CPU_STATS(cp, stat)                                       \
5227c478bd9Sstevel@tonic-gate 	((cp)->cpu_stats.stat)
5237c478bd9Sstevel@tonic-gate 
5247c478bd9Sstevel@tonic-gate #endif /* _KERNEL || _KMEMUSER */
5257c478bd9Sstevel@tonic-gate 
5267c478bd9Sstevel@tonic-gate /*
5277c478bd9Sstevel@tonic-gate  * CPU support routines.
5287c478bd9Sstevel@tonic-gate  */
5297c478bd9Sstevel@tonic-gate #if	defined(_KERNEL) && defined(__STDC__)	/* not for genassym.c */
5307c478bd9Sstevel@tonic-gate 
5317c478bd9Sstevel@tonic-gate struct zone;
5327c478bd9Sstevel@tonic-gate 
5337c478bd9Sstevel@tonic-gate void	cpu_list_init(cpu_t *);
5347c478bd9Sstevel@tonic-gate void	cpu_add_unit(cpu_t *);
5357c478bd9Sstevel@tonic-gate void	cpu_del_unit(int cpuid);
5367c478bd9Sstevel@tonic-gate void	cpu_add_active(cpu_t *);
5377c478bd9Sstevel@tonic-gate void	cpu_kstat_init(cpu_t *);
5387c478bd9Sstevel@tonic-gate void	cpu_visibility_add(cpu_t *, struct zone *);
5397c478bd9Sstevel@tonic-gate void	cpu_visibility_remove(cpu_t *, struct zone *);
5407c478bd9Sstevel@tonic-gate void	cpu_visibility_configure(cpu_t *, struct zone *);
5417c478bd9Sstevel@tonic-gate void	cpu_visibility_unconfigure(cpu_t *, struct zone *);
5427c478bd9Sstevel@tonic-gate void	cpu_visibility_online(cpu_t *, struct zone *);
5437c478bd9Sstevel@tonic-gate void	cpu_visibility_offline(cpu_t *, struct zone *);
5447c478bd9Sstevel@tonic-gate void	cpu_create_intrstat(cpu_t *);
5457c478bd9Sstevel@tonic-gate void	cpu_delete_intrstat(cpu_t *);
5467c478bd9Sstevel@tonic-gate int	cpu_kstat_intrstat_update(kstat_t *, int);
5477c478bd9Sstevel@tonic-gate void	cpu_intr_swtch_enter(kthread_t *);
5487c478bd9Sstevel@tonic-gate void	cpu_intr_swtch_exit(kthread_t *);
5497c478bd9Sstevel@tonic-gate 
5507c478bd9Sstevel@tonic-gate void	mbox_lock_init(void);	 /* initialize cross-call locks */
5517c478bd9Sstevel@tonic-gate void	mbox_init(int cpun);	 /* initialize cross-calls */
5527c478bd9Sstevel@tonic-gate void	poke_cpu(int cpun);	 /* interrupt another CPU (to preempt) */
5537c478bd9Sstevel@tonic-gate 
5547c478bd9Sstevel@tonic-gate void	pause_cpus(cpu_t *off_cp);
5557c478bd9Sstevel@tonic-gate void	start_cpus(void);
5567c478bd9Sstevel@tonic-gate int	cpus_paused(void);
5577c478bd9Sstevel@tonic-gate 
5587c478bd9Sstevel@tonic-gate void	cpu_pause_init(void);
5597c478bd9Sstevel@tonic-gate cpu_t	*cpu_get(processorid_t cpun);	/* get the CPU struct associated */
5607c478bd9Sstevel@tonic-gate 
5617c478bd9Sstevel@tonic-gate int	cpu_online(cpu_t *cp);			/* take cpu online */
5627c478bd9Sstevel@tonic-gate int	cpu_offline(cpu_t *cp, int flags);	/* take cpu offline */
5637c478bd9Sstevel@tonic-gate int	cpu_spare(cpu_t *cp, int flags);	/* take cpu to spare */
5647c478bd9Sstevel@tonic-gate int	cpu_faulted(cpu_t *cp, int flags);	/* take cpu to faulted */
5657c478bd9Sstevel@tonic-gate int	cpu_poweron(cpu_t *cp);		/* take powered-off cpu to offline */
5667c478bd9Sstevel@tonic-gate int	cpu_poweroff(cpu_t *cp);	/* take offline cpu to powered-off */
5677c478bd9Sstevel@tonic-gate 
5687c478bd9Sstevel@tonic-gate cpu_t	*cpu_intr_next(cpu_t *cp);	/* get next online CPU taking intrs */
5697c478bd9Sstevel@tonic-gate int	cpu_intr_count(cpu_t *cp);	/* count # of CPUs handling intrs */
5707c478bd9Sstevel@tonic-gate int	cpu_intr_on(cpu_t *cp);		/* CPU taking I/O interrupts? */
5717c478bd9Sstevel@tonic-gate void	cpu_intr_enable(cpu_t *cp);	/* enable I/O interrupts */
5727c478bd9Sstevel@tonic-gate int	cpu_intr_disable(cpu_t *cp);	/* disable I/O interrupts */
5737c478bd9Sstevel@tonic-gate 
5747c478bd9Sstevel@tonic-gate /*
5757c478bd9Sstevel@tonic-gate  * Routines for checking CPU states.
5767c478bd9Sstevel@tonic-gate  */
5777c478bd9Sstevel@tonic-gate int	cpu_is_online(cpu_t *);		/* check if CPU is online */
5787c478bd9Sstevel@tonic-gate int	cpu_is_nointr(cpu_t *);		/* check if CPU can service intrs */
5797c478bd9Sstevel@tonic-gate int	cpu_is_active(cpu_t *);		/* check if CPU can run threads */
5807c478bd9Sstevel@tonic-gate int	cpu_is_offline(cpu_t *);	/* check if CPU is offline */
5817c478bd9Sstevel@tonic-gate int	cpu_is_poweredoff(cpu_t *);	/* check if CPU is powered off */
5827c478bd9Sstevel@tonic-gate 
5837c478bd9Sstevel@tonic-gate int	cpu_flagged_online(cpu_flag_t);	/* flags show CPU is online */
5847c478bd9Sstevel@tonic-gate int	cpu_flagged_nointr(cpu_flag_t);	/* flags show CPU not handling intrs */
5857c478bd9Sstevel@tonic-gate int	cpu_flagged_active(cpu_flag_t); /* flags show CPU scheduling threads */
5867c478bd9Sstevel@tonic-gate int	cpu_flagged_offline(cpu_flag_t); /* flags show CPU is offline */
5877c478bd9Sstevel@tonic-gate int	cpu_flagged_poweredoff(cpu_flag_t); /* flags show CPU is powered off */
5887c478bd9Sstevel@tonic-gate 
5897c478bd9Sstevel@tonic-gate /*
5907c478bd9Sstevel@tonic-gate  * The processor_info(2) state of a CPU is a simplified representation suitable
5917c478bd9Sstevel@tonic-gate  * for use by an application program.  Kernel subsystems should utilize the
5927c478bd9Sstevel@tonic-gate  * internal per-CPU state as given by the cpu_flags member of the cpu structure,
5937c478bd9Sstevel@tonic-gate  * as this information may include platform- or architecture-specific state
5947c478bd9Sstevel@tonic-gate  * critical to a subsystem's disposition of a particular CPU.
5957c478bd9Sstevel@tonic-gate  */
5967c478bd9Sstevel@tonic-gate void	cpu_set_state(cpu_t *);		/* record/timestamp current state */
5977c478bd9Sstevel@tonic-gate int	cpu_get_state(cpu_t *);		/* get current cpu state */
5987c478bd9Sstevel@tonic-gate const char *cpu_get_state_str(cpu_t *);	/* get current cpu state as string */
5997c478bd9Sstevel@tonic-gate 
6007c478bd9Sstevel@tonic-gate int	cpu_configure(int);
6017c478bd9Sstevel@tonic-gate int	cpu_unconfigure(int);
6027c478bd9Sstevel@tonic-gate void	cpu_destroy_bound_threads(cpu_t *cp);
6037c478bd9Sstevel@tonic-gate 
6047c478bd9Sstevel@tonic-gate extern int cpu_bind_thread(kthread_t *tp, processorid_t bind,
6057c478bd9Sstevel@tonic-gate     processorid_t *obind, int *error);
6067c478bd9Sstevel@tonic-gate extern int cpu_unbind(processorid_t cpu_id);
6077c478bd9Sstevel@tonic-gate extern void thread_affinity_set(kthread_t *t, int cpu_id);
6087c478bd9Sstevel@tonic-gate extern void thread_affinity_clear(kthread_t *t);
6097c478bd9Sstevel@tonic-gate extern void affinity_set(int cpu_id);
6107c478bd9Sstevel@tonic-gate extern void affinity_clear(void);
6117c478bd9Sstevel@tonic-gate extern void init_cpu_mstate(struct cpu *, int);
6127c478bd9Sstevel@tonic-gate extern void term_cpu_mstate(struct cpu *);
6137c478bd9Sstevel@tonic-gate extern void new_cpu_mstate(struct cpu *, int);
6147c478bd9Sstevel@tonic-gate extern void thread_nomigrate(void);
6157c478bd9Sstevel@tonic-gate extern void thread_allowmigrate(void);
6167c478bd9Sstevel@tonic-gate extern void weakbinding_stop(void);
6177c478bd9Sstevel@tonic-gate extern void weakbinding_start(void);
6187c478bd9Sstevel@tonic-gate 
6197c478bd9Sstevel@tonic-gate /*
6207c478bd9Sstevel@tonic-gate  * The following routines affect the CPUs participation in interrupt processing,
6217c478bd9Sstevel@tonic-gate  * if that is applicable on the architecture.  This only affects interrupts
6227c478bd9Sstevel@tonic-gate  * which aren't directed at the processor (not cross calls).
6237c478bd9Sstevel@tonic-gate  *
6247c478bd9Sstevel@tonic-gate  * cpu_disable_intr returns non-zero if interrupts were previously enabled.
6257c478bd9Sstevel@tonic-gate  */
6267c478bd9Sstevel@tonic-gate int	cpu_disable_intr(struct cpu *cp); /* stop issuing interrupts to cpu */
6277c478bd9Sstevel@tonic-gate void	cpu_enable_intr(struct cpu *cp); /* start issuing interrupts to cpu */
6287c478bd9Sstevel@tonic-gate 
6297c478bd9Sstevel@tonic-gate /*
6307c478bd9Sstevel@tonic-gate  * The mutex cpu_lock protects cpu_flags for all CPUs, as well as the ncpus
6317c478bd9Sstevel@tonic-gate  * and ncpus_online counts.
6327c478bd9Sstevel@tonic-gate  */
6337c478bd9Sstevel@tonic-gate extern kmutex_t	cpu_lock;	/* lock protecting CPU data */
6347c478bd9Sstevel@tonic-gate 
6357c478bd9Sstevel@tonic-gate typedef enum {
6367c478bd9Sstevel@tonic-gate 	CPU_INIT,
6377c478bd9Sstevel@tonic-gate 	CPU_CONFIG,
6387c478bd9Sstevel@tonic-gate 	CPU_UNCONFIG,
6397c478bd9Sstevel@tonic-gate 	CPU_ON,
6407c478bd9Sstevel@tonic-gate 	CPU_OFF,
6417c478bd9Sstevel@tonic-gate 	CPU_CPUPART_IN,
6427c478bd9Sstevel@tonic-gate 	CPU_CPUPART_OUT
6437c478bd9Sstevel@tonic-gate } cpu_setup_t;
6447c478bd9Sstevel@tonic-gate 
6457c478bd9Sstevel@tonic-gate typedef int cpu_setup_func_t(cpu_setup_t, int, void *);
6467c478bd9Sstevel@tonic-gate 
6477c478bd9Sstevel@tonic-gate /*
6487c478bd9Sstevel@tonic-gate  * Routines used to register interest in cpu's being added to or removed
6497c478bd9Sstevel@tonic-gate  * from the system.
6507c478bd9Sstevel@tonic-gate  */
6517c478bd9Sstevel@tonic-gate extern void register_cpu_setup_func(cpu_setup_func_t *, void *);
6527c478bd9Sstevel@tonic-gate extern void unregister_cpu_setup_func(cpu_setup_func_t *, void *);
6537c478bd9Sstevel@tonic-gate extern void cpu_state_change_notify(int, cpu_setup_t);
6547c478bd9Sstevel@tonic-gate 
6557c478bd9Sstevel@tonic-gate /*
6567c478bd9Sstevel@tonic-gate  * Create various strings that describe the given CPU for the
6577c478bd9Sstevel@tonic-gate  * processor_info system call and configuration-related kstats.
6587c478bd9Sstevel@tonic-gate  */
6597c478bd9Sstevel@tonic-gate #define	CPU_IDSTRLEN	100
6607c478bd9Sstevel@tonic-gate 
6617c478bd9Sstevel@tonic-gate extern void init_cpu_info(struct cpu *);
662*affbd3ccSkchow extern void cpu_vm_data_init(struct cpu *);
663*affbd3ccSkchow extern void cpu_vm_data_destroy(struct cpu *);
6647c478bd9Sstevel@tonic-gate 
6657c478bd9Sstevel@tonic-gate #endif	/* _KERNEL */
6667c478bd9Sstevel@tonic-gate 
6677c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
6687c478bd9Sstevel@tonic-gate }
6697c478bd9Sstevel@tonic-gate #endif
6707c478bd9Sstevel@tonic-gate 
6717c478bd9Sstevel@tonic-gate #endif /* _SYS_CPUVAR_H */
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