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/*
* 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
*
* $FreeBSD$
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _COMPAT_OPENSOLARIS_SYS_CPUVAR_H
#define _COMPAT_OPENSOLARIS_SYS_CPUVAR_H
#include <sys/mutex.h>
#include <sys/cpuvar_defs.h>
#ifdef _KERNEL
struct cyc_cpu;
typedef struct {
int cpuid;
uint32_t cpu_flags;
uint_t cpu_intr_actv;
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 */
} solaris_cpu_t;
/* Some code may choose to redefine this if pcpu_t would be more useful. */
#define cpu_t solaris_cpu_t
#define cpu_id cpuid
extern solaris_cpu_t solaris_cpu[];
#define CPU_CACHE_COHERENCE_SIZE 64
/*
* 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 (uintptr_t) + \
sizeof (kmutex_t))
#define CPUC_SIZE1 roundup(CPUC_SIZE, CPU_CACHE_COHERENCE_SIZE)
#define CPUC_PADSIZE CPUC_SIZE1 - CPUC_SIZE
typedef struct cpu_core {
uint16_t cpuc_dtrace_flags; /* DTrace flags */
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;
extern cpu_core_t cpu_core[];
extern kmutex_t cpu_lock;
#endif /* _KERNEL */
/*
* 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 */
typedef enum {
CPU_INIT,
CPU_CONFIG,
CPU_UNCONFIG,
CPU_ON,
CPU_OFF,
CPU_CPUPART_IN,
CPU_CPUPART_OUT
} cpu_setup_t;
typedef int cpu_setup_func_t(cpu_setup_t, int, void *);
#endif /* _COMPAT_OPENSOLARIS_SYS_CPUVAR_H */
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