10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 53792Sakolb * Common Development and Distribution License (the "License"). 63792Sakolb * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 210Sstevel@tonic-gate /* 223792Sakolb * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 230Sstevel@tonic-gate * Use is subject to license terms. 240Sstevel@tonic-gate */ 250Sstevel@tonic-gate 260Sstevel@tonic-gate /* 270Sstevel@tonic-gate * The enclosed is a private interface between system libraries and 280Sstevel@tonic-gate * the kernel. It should not be used in any other way. It may be 290Sstevel@tonic-gate * changed without notice in a minor release of Solaris. 300Sstevel@tonic-gate */ 310Sstevel@tonic-gate 320Sstevel@tonic-gate #ifndef _SYS_SCHEDCTL_H 330Sstevel@tonic-gate #define _SYS_SCHEDCTL_H 340Sstevel@tonic-gate 350Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 360Sstevel@tonic-gate 370Sstevel@tonic-gate #ifdef __cplusplus 380Sstevel@tonic-gate extern "C" { 390Sstevel@tonic-gate #endif 400Sstevel@tonic-gate 410Sstevel@tonic-gate #if !defined(_ASM) 420Sstevel@tonic-gate 430Sstevel@tonic-gate #include <sys/types.h> 440Sstevel@tonic-gate #include <sys/processor.h> 450Sstevel@tonic-gate #ifdef _KERNEL 460Sstevel@tonic-gate #include <sys/mutex.h> 470Sstevel@tonic-gate #include <sys/thread.h> 480Sstevel@tonic-gate #include <sys/vnode.h> 490Sstevel@tonic-gate #include <sys/cpuvar.h> 500Sstevel@tonic-gate #include <sys/door.h> 510Sstevel@tonic-gate #endif /* _KERNEL */ 520Sstevel@tonic-gate 530Sstevel@tonic-gate /* 540Sstevel@tonic-gate * This "public" portion of the sc_shared data is used by libsched/libc. 550Sstevel@tonic-gate */ 560Sstevel@tonic-gate typedef struct sc_public { 570Sstevel@tonic-gate volatile short sc_nopreempt; 580Sstevel@tonic-gate volatile short sc_yield; 590Sstevel@tonic-gate } sc_public_t; 600Sstevel@tonic-gate 610Sstevel@tonic-gate /* 620Sstevel@tonic-gate * The private portion of the sc_shared data is for 630Sstevel@tonic-gate * use by user-level threading support code in libc. 640Sstevel@tonic-gate */ 650Sstevel@tonic-gate typedef struct sc_shared { 660Sstevel@tonic-gate volatile ushort_t sc_state; /* current LWP state */ 670Sstevel@tonic-gate volatile char sc_sigblock; /* all signals blocked */ 680Sstevel@tonic-gate volatile char sc_park; /* calling lwp_park() */ 690Sstevel@tonic-gate volatile processorid_t sc_cpu; /* last CPU on which LWP ran */ 700Sstevel@tonic-gate int sc_pad; 710Sstevel@tonic-gate sc_public_t sc_preemptctl; /* preemption control data */ 720Sstevel@tonic-gate } sc_shared_t; 730Sstevel@tonic-gate 740Sstevel@tonic-gate /* 750Sstevel@tonic-gate * Possible state settings. These are same as the kernel thread states 760Sstevel@tonic-gate * except there is no zombie state. 770Sstevel@tonic-gate */ 780Sstevel@tonic-gate #define SC_FREE 0x00 790Sstevel@tonic-gate #define SC_SLEEP 0x01 800Sstevel@tonic-gate #define SC_RUN 0x02 810Sstevel@tonic-gate #define SC_ONPROC 0x04 820Sstevel@tonic-gate #define SC_STOPPED 0x10 833792Sakolb #define SC_WAIT 0x20 840Sstevel@tonic-gate 850Sstevel@tonic-gate /* preemption control settings */ 860Sstevel@tonic-gate #define SC_MAX_TICKS 2 /* max time preemption can be blocked */ 870Sstevel@tonic-gate 880Sstevel@tonic-gate #ifdef _KERNEL 890Sstevel@tonic-gate caddr_t schedctl(void); 900Sstevel@tonic-gate void schedctl_init(void); 910Sstevel@tonic-gate void schedctl_lwp_cleanup(kthread_t *); 920Sstevel@tonic-gate void schedctl_proc_cleanup(void); 930Sstevel@tonic-gate int schedctl_get_nopreempt(kthread_t *); 940Sstevel@tonic-gate void schedctl_set_nopreempt(kthread_t *, short); 950Sstevel@tonic-gate void schedctl_set_yield(kthread_t *, short); 960Sstevel@tonic-gate int schedctl_sigblock(kthread_t *); 970Sstevel@tonic-gate void schedctl_finish_sigblock(kthread_t *); 980Sstevel@tonic-gate int schedctl_is_park(void); 99*4389Ssl108498 void schedctl_set_park(void); 1000Sstevel@tonic-gate void schedctl_unpark(void); 1010Sstevel@tonic-gate #endif /* _KERNEL */ 1020Sstevel@tonic-gate 1030Sstevel@tonic-gate #endif /* !defined(_ASM) */ 1040Sstevel@tonic-gate 1050Sstevel@tonic-gate #ifdef __cplusplus 1060Sstevel@tonic-gate } 1070Sstevel@tonic-gate #endif 1080Sstevel@tonic-gate 1090Sstevel@tonic-gate #endif /* _SYS_SCHEDCTL_H */ 110