1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1997-2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* 28*0Sstevel@tonic-gate * The enclosed is a private interface between system libraries and 29*0Sstevel@tonic-gate * the kernel. It should not be used in any other way. It may be 30*0Sstevel@tonic-gate * changed without notice in a minor release of Solaris. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #ifndef _SYS_SCHEDCTL_H 34*0Sstevel@tonic-gate #define _SYS_SCHEDCTL_H 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #ifdef __cplusplus 39*0Sstevel@tonic-gate extern "C" { 40*0Sstevel@tonic-gate #endif 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #if !defined(_ASM) 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #include <sys/types.h> 45*0Sstevel@tonic-gate #include <sys/processor.h> 46*0Sstevel@tonic-gate #ifdef _KERNEL 47*0Sstevel@tonic-gate #include <sys/mutex.h> 48*0Sstevel@tonic-gate #include <sys/thread.h> 49*0Sstevel@tonic-gate #include <sys/vnode.h> 50*0Sstevel@tonic-gate #include <sys/cpuvar.h> 51*0Sstevel@tonic-gate #include <sys/door.h> 52*0Sstevel@tonic-gate #endif /* _KERNEL */ 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate /* 55*0Sstevel@tonic-gate * This "public" portion of the sc_shared data is used by libsched/libc. 56*0Sstevel@tonic-gate */ 57*0Sstevel@tonic-gate typedef struct sc_public { 58*0Sstevel@tonic-gate volatile short sc_nopreempt; 59*0Sstevel@tonic-gate volatile short sc_yield; 60*0Sstevel@tonic-gate } sc_public_t; 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate /* 63*0Sstevel@tonic-gate * The private portion of the sc_shared data is for 64*0Sstevel@tonic-gate * use by user-level threading support code in libc. 65*0Sstevel@tonic-gate */ 66*0Sstevel@tonic-gate typedef struct sc_shared { 67*0Sstevel@tonic-gate volatile ushort_t sc_state; /* current LWP state */ 68*0Sstevel@tonic-gate volatile char sc_sigblock; /* all signals blocked */ 69*0Sstevel@tonic-gate volatile char sc_park; /* calling lwp_park() */ 70*0Sstevel@tonic-gate volatile processorid_t sc_cpu; /* last CPU on which LWP ran */ 71*0Sstevel@tonic-gate int sc_pad; 72*0Sstevel@tonic-gate sc_public_t sc_preemptctl; /* preemption control data */ 73*0Sstevel@tonic-gate } sc_shared_t; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate /* 76*0Sstevel@tonic-gate * Possible state settings. These are same as the kernel thread states 77*0Sstevel@tonic-gate * except there is no zombie state. 78*0Sstevel@tonic-gate */ 79*0Sstevel@tonic-gate #define SC_FREE 0x00 80*0Sstevel@tonic-gate #define SC_SLEEP 0x01 81*0Sstevel@tonic-gate #define SC_RUN 0x02 82*0Sstevel@tonic-gate #define SC_ONPROC 0x04 83*0Sstevel@tonic-gate #define SC_STOPPED 0x10 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate /* preemption control settings */ 86*0Sstevel@tonic-gate #define SC_MAX_TICKS 2 /* max time preemption can be blocked */ 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate #ifdef _KERNEL 89*0Sstevel@tonic-gate caddr_t schedctl(void); 90*0Sstevel@tonic-gate void schedctl_init(void); 91*0Sstevel@tonic-gate void schedctl_lwp_cleanup(kthread_t *); 92*0Sstevel@tonic-gate void schedctl_proc_cleanup(void); 93*0Sstevel@tonic-gate int schedctl_get_nopreempt(kthread_t *); 94*0Sstevel@tonic-gate void schedctl_set_nopreempt(kthread_t *, short); 95*0Sstevel@tonic-gate void schedctl_set_yield(kthread_t *, short); 96*0Sstevel@tonic-gate int schedctl_sigblock(kthread_t *); 97*0Sstevel@tonic-gate void schedctl_finish_sigblock(kthread_t *); 98*0Sstevel@tonic-gate int schedctl_is_park(void); 99*0Sstevel@tonic-gate void schedctl_unpark(void); 100*0Sstevel@tonic-gate #endif /* _KERNEL */ 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate #endif /* !defined(_ASM) */ 103*0Sstevel@tonic-gate 104*0Sstevel@tonic-gate #ifdef __cplusplus 105*0Sstevel@tonic-gate } 106*0Sstevel@tonic-gate #endif 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate #endif /* _SYS_SCHEDCTL_H */ 109