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 5*690d169bSEthindra Ramamurthy * Common Development and Distribution License (the "License"). 6*690d169bSEthindra Ramamurthy * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22*690d169bSEthindra Ramamurthy * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #ifndef _SYS_SLEEPQ_H 277c478bd9Sstevel@tonic-gate #define _SYS_SLEEPQ_H 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #include <sys/machlock.h> 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate #ifdef __cplusplus 327c478bd9Sstevel@tonic-gate extern "C" { 337c478bd9Sstevel@tonic-gate #endif 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate /* 367c478bd9Sstevel@tonic-gate * Common definition for a sleep queue, 377c478bd9Sstevel@tonic-gate * be it an old-style sleep queue, or 387c478bd9Sstevel@tonic-gate * a constituent of a turnstile. 397c478bd9Sstevel@tonic-gate */ 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate typedef struct sleepq { 427c478bd9Sstevel@tonic-gate struct _kthread *sq_first; 437c478bd9Sstevel@tonic-gate } sleepq_t; 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate /* 467c478bd9Sstevel@tonic-gate * Definition of the head of a sleep queue hash bucket. 477c478bd9Sstevel@tonic-gate */ 487c478bd9Sstevel@tonic-gate typedef struct _sleepq_head { 497c478bd9Sstevel@tonic-gate sleepq_t sq_queue; 507c478bd9Sstevel@tonic-gate disp_lock_t sq_lock; 517c478bd9Sstevel@tonic-gate } sleepq_head_t; 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate #ifdef _KERNEL 547c478bd9Sstevel@tonic-gate 55*690d169bSEthindra Ramamurthy #define NSLEEPQ 2048 567c478bd9Sstevel@tonic-gate #define SQHASHINDEX(X) \ 57*690d169bSEthindra Ramamurthy ((((uintptr_t)(X) >> 2) ^ ((uintptr_t)(X) >> 13) ^ \ 58*690d169bSEthindra Ramamurthy ((uintptr_t)(X) >> 24)) & (NSLEEPQ - 1)) 597c478bd9Sstevel@tonic-gate #define SQHASH(X) (&sleepq_head[SQHASHINDEX(X)]) 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate extern sleepq_head_t sleepq_head[NSLEEPQ]; 627c478bd9Sstevel@tonic-gate 637c478bd9Sstevel@tonic-gate extern void sleepq_insert(sleepq_t *, struct _kthread *); 647c478bd9Sstevel@tonic-gate extern struct _kthread *sleepq_wakeone_chan(sleepq_t *, void *); 657c478bd9Sstevel@tonic-gate extern void sleepq_wakeall_chan(sleepq_t *, void *); 667c478bd9Sstevel@tonic-gate extern void sleepq_unsleep(struct _kthread *); 677c478bd9Sstevel@tonic-gate extern void sleepq_dequeue(struct _kthread *); 687c478bd9Sstevel@tonic-gate extern void sleepq_unlink(struct _kthread **, struct _kthread *); 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate #ifdef __cplusplus 737c478bd9Sstevel@tonic-gate } 747c478bd9Sstevel@tonic-gate #endif 757c478bd9Sstevel@tonic-gate 767c478bd9Sstevel@tonic-gate #endif /* _SYS_SLEEPQ_H */ 77