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 2005 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 #ifndef _SYS_LWP_UPIMUTEX_IMPL_H 28*0Sstevel@tonic-gate #define _SYS_LWP_UPIMUTEX_IMPL_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <sys/thread.h> 33*0Sstevel@tonic-gate #include <sys/lwp.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #ifdef __cplusplus 36*0Sstevel@tonic-gate extern "C" { 37*0Sstevel@tonic-gate #endif 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate typedef struct upimutex upimutex_t; 40*0Sstevel@tonic-gate typedef struct upib upib_t; 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate struct upib { 43*0Sstevel@tonic-gate kmutex_t upib_lock; 44*0Sstevel@tonic-gate upimutex_t *upib_first; 45*0Sstevel@tonic-gate }; 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate struct upimutex { 48*0Sstevel@tonic-gate struct _kthread *upi_owner; /* owner */ 49*0Sstevel@tonic-gate int upi_waiter; /* wait bit */ 50*0Sstevel@tonic-gate upib_t *upi_upibp; /* point back to upib bucket in hash chain */ 51*0Sstevel@tonic-gate lwp_mutex_t *upi_vaddr; /* virtual address, i.e. user lock ptr */ 52*0Sstevel@tonic-gate lwpchan_t upi_lwpchan; /* lwpchan of virtual address */ 53*0Sstevel@tonic-gate upimutex_t *upi_nextchain; /* next in hash chain */ 54*0Sstevel@tonic-gate upimutex_t *upi_nextowned; /* list of mutexes owned by lwp */ 55*0Sstevel@tonic-gate }; 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate #define UPILWPCHAN_BITS 9 58*0Sstevel@tonic-gate #define UPILWPCHAN_TABSIZ (1 << UPILWPCHAN_BITS) 59*0Sstevel@tonic-gate #define UPIMUTEX_TABSIZE UPILWPCHAN_TABSIZ 60*0Sstevel@tonic-gate #define UPILWPCHAN_HASH(lwpchan) \ 61*0Sstevel@tonic-gate (((uintptr_t)((lwpchan).lc_wchan0)^(uintptr_t)((lwpchan).lc_wchan)) ^ \ 62*0Sstevel@tonic-gate (((uintptr_t)((lwpchan).lc_wchan0)^(uintptr_t)((lwpchan).lc_wchan)) >> \ 63*0Sstevel@tonic-gate UPILWPCHAN_BITS)) & (UPIMUTEX_TABSIZE - 1) 64*0Sstevel@tonic-gate #define UPI_CHAIN(lwpchan) upimutextab[UPILWPCHAN_HASH((lwpchan))] 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate #define UPIMUTEX_TRY 1 67*0Sstevel@tonic-gate #define UPIMUTEX_BLOCK 0 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate #ifdef _KERNEL 70*0Sstevel@tonic-gate extern void upimutex_cleanup(); 71*0Sstevel@tonic-gate #endif /* _KERNEL */ 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate #ifdef __cplusplus 74*0Sstevel@tonic-gate } 75*0Sstevel@tonic-gate #endif 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate #endif /* _SYS_LWP_UPIMUTEX_IMPL_H */ 78