1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22/* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#ifndef _SYS_LWP_UPIMUTEX_IMPL_H 28#define _SYS_LWP_UPIMUTEX_IMPL_H 29 30#pragma ident "%Z%%M% %I% %E% SMI" 31 32#include <sys/thread.h> 33#include <sys/lwp.h> 34 35#ifdef __cplusplus 36extern "C" { 37#endif 38 39typedef struct upimutex upimutex_t; 40typedef struct upib upib_t; 41 42struct upib { 43 kmutex_t upib_lock; 44 upimutex_t *upib_first; 45}; 46 47struct upimutex { 48 struct _kthread *upi_owner; /* owner */ 49 int upi_waiter; /* wait bit */ 50 upib_t *upi_upibp; /* point back to upib bucket in hash chain */ 51 lwp_mutex_t *upi_vaddr; /* virtual address, i.e. user lock ptr */ 52 lwpchan_t upi_lwpchan; /* lwpchan of virtual address */ 53 upimutex_t *upi_nextchain; /* next in hash chain */ 54 upimutex_t *upi_nextowned; /* list of mutexes owned by lwp */ 55}; 56 57#define UPILWPCHAN_BITS 9 58#define UPILWPCHAN_TABSIZ (1 << UPILWPCHAN_BITS) 59#define UPIMUTEX_TABSIZE UPILWPCHAN_TABSIZ 60#define UPILWPCHAN_HASH(lwpchan) \ 61 (((uintptr_t)((lwpchan).lc_wchan0)^(uintptr_t)((lwpchan).lc_wchan)) ^ \ 62 (((uintptr_t)((lwpchan).lc_wchan0)^(uintptr_t)((lwpchan).lc_wchan)) >> \ 63 UPILWPCHAN_BITS)) & (UPIMUTEX_TABSIZE - 1) 64#define UPI_CHAIN(lwpchan) upimutextab[UPILWPCHAN_HASH((lwpchan))] 65 66#define UPIMUTEX_TRY 1 67#define UPIMUTEX_BLOCK 0 68 69#ifdef _KERNEL 70extern void upimutex_cleanup(); 71#endif /* _KERNEL */ 72 73#ifdef __cplusplus 74} 75#endif 76 77#endif /* _SYS_LWP_UPIMUTEX_IMPL_H */ 78