1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #ifndef _SYS_LWP_UPIMUTEX_IMPL_H 28*7c478bd9Sstevel@tonic-gate #define _SYS_LWP_UPIMUTEX_IMPL_H 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #include <sys/thread.h> 31*7c478bd9Sstevel@tonic-gate #include <sys/lwp.h> 32*7c478bd9Sstevel@tonic-gate 33*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 34*7c478bd9Sstevel@tonic-gate extern "C" { 35*7c478bd9Sstevel@tonic-gate #endif 36*7c478bd9Sstevel@tonic-gate 37*7c478bd9Sstevel@tonic-gate typedef struct upimutex upimutex_t; 38*7c478bd9Sstevel@tonic-gate typedef struct upib upib_t; 39*7c478bd9Sstevel@tonic-gate 40*7c478bd9Sstevel@tonic-gate struct upib { 41*7c478bd9Sstevel@tonic-gate kmutex_t upib_lock; 42*7c478bd9Sstevel@tonic-gate upimutex_t *upib_first; 43*7c478bd9Sstevel@tonic-gate }; 44*7c478bd9Sstevel@tonic-gate 45*7c478bd9Sstevel@tonic-gate struct upimutex { 46*7c478bd9Sstevel@tonic-gate struct _kthread *upi_owner; /* owner */ 47*7c478bd9Sstevel@tonic-gate int upi_waiter; /* wait bit */ 48*7c478bd9Sstevel@tonic-gate upib_t *upi_upibp; /* point back to upib bucket in hash chain */ 49*7c478bd9Sstevel@tonic-gate lwp_mutex_t *upi_vaddr; /* virtual address, i.e. user lock ptr */ 50*7c478bd9Sstevel@tonic-gate lwpchan_t upi_lwpchan; /* lwpchan of virtual address */ 51*7c478bd9Sstevel@tonic-gate upimutex_t *upi_nextchain; /* next in hash chain */ 52*7c478bd9Sstevel@tonic-gate upimutex_t *upi_nextowned; /* list of mutexes owned by lwp */ 53*7c478bd9Sstevel@tonic-gate }; 54*7c478bd9Sstevel@tonic-gate 55*7c478bd9Sstevel@tonic-gate #define UPILWPCHAN_BITS 9 56*7c478bd9Sstevel@tonic-gate #define UPILWPCHAN_TABSIZ (1 << UPILWPCHAN_BITS) 57*7c478bd9Sstevel@tonic-gate #define UPIMUTEX_TABSIZE UPILWPCHAN_TABSIZ 58*7c478bd9Sstevel@tonic-gate #define UPILWPCHAN_HASH(lwpchan) \ 59*7c478bd9Sstevel@tonic-gate (((uintptr_t)((lwpchan).lc_wchan0)^(uintptr_t)((lwpchan).lc_wchan)) ^ \ 60*7c478bd9Sstevel@tonic-gate (((uintptr_t)((lwpchan).lc_wchan0)^(uintptr_t)((lwpchan).lc_wchan)) >> \ 61*7c478bd9Sstevel@tonic-gate UPILWPCHAN_BITS)) & (UPIMUTEX_TABSIZE - 1) 62*7c478bd9Sstevel@tonic-gate #define UPI_CHAIN(lwpchan) upimutextab[UPILWPCHAN_HASH((lwpchan))] 63*7c478bd9Sstevel@tonic-gate 64*7c478bd9Sstevel@tonic-gate #define UPIMUTEX_TRY 1 65*7c478bd9Sstevel@tonic-gate #define UPIMUTEX_BLOCK 0 66*7c478bd9Sstevel@tonic-gate 67*7c478bd9Sstevel@tonic-gate #ifdef _KERNEL 68*7c478bd9Sstevel@tonic-gate extern void upimutex_cleanup(); 69*7c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 70*7c478bd9Sstevel@tonic-gate 71*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 72*7c478bd9Sstevel@tonic-gate } 73*7c478bd9Sstevel@tonic-gate #endif 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate #endif /* _SYS_LWP_UPIMUTEX_IMPL_H */ 76