1*4f364e7cSRobert Mustacchi /* 2*4f364e7cSRobert Mustacchi * CDDL HEADER START 3*4f364e7cSRobert Mustacchi * 4*4f364e7cSRobert Mustacchi * The contents of this file are subject to the terms of the 5*4f364e7cSRobert Mustacchi * Common Development and Distribution License (the "License"). 6*4f364e7cSRobert Mustacchi * You may not use this file except in compliance with the License. 7*4f364e7cSRobert Mustacchi * 8*4f364e7cSRobert Mustacchi * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*4f364e7cSRobert Mustacchi * or http://www.opensolaris.org/os/licensing. 10*4f364e7cSRobert Mustacchi * See the License for the specific language governing permissions 11*4f364e7cSRobert Mustacchi * and limitations under the License. 12*4f364e7cSRobert Mustacchi * 13*4f364e7cSRobert Mustacchi * When distributing Covered Code, include this CDDL HEADER in each 14*4f364e7cSRobert Mustacchi * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*4f364e7cSRobert Mustacchi * If applicable, add the following below this CDDL HEADER, with the 16*4f364e7cSRobert Mustacchi * fields enclosed by brackets "[]" replaced with your own identifying 17*4f364e7cSRobert Mustacchi * information: Portions Copyright [yyyy] [name of copyright owner] 18*4f364e7cSRobert Mustacchi * 19*4f364e7cSRobert Mustacchi * CDDL HEADER END 20*4f364e7cSRobert Mustacchi */ 21*4f364e7cSRobert Mustacchi 22*4f364e7cSRobert Mustacchi /* 23*4f364e7cSRobert Mustacchi * Copyright (c) 2012, Joyent, Inc. All rights reserved. 24*4f364e7cSRobert Mustacchi */ 25*4f364e7cSRobert Mustacchi 26*4f364e7cSRobert Mustacchi #include "lint.h" 27*4f364e7cSRobert Mustacchi #include "thr_uberdata.h" 28*4f364e7cSRobert Mustacchi 29*4f364e7cSRobert Mustacchi /* 30*4f364e7cSRobert Mustacchi * This file implements the private interface with libumem for per-thread 31*4f364e7cSRobert Mustacchi * caching umem (ptcumem). For the full details on how tcumem works and how 32*4f364e7cSRobert Mustacchi * these functions work, see section 8.4 of the big theory statement in 33*4f364e7cSRobert Mustacchi * lib/libumem/common/umem.c. 34*4f364e7cSRobert Mustacchi */ 35*4f364e7cSRobert Mustacchi static tmem_func_t tmem_cleanup = NULL; 36*4f364e7cSRobert Mustacchi 37*4f364e7cSRobert Mustacchi uintptr_t _tmem_get_base(void)38*4f364e7cSRobert Mustacchi_tmem_get_base(void) 39*4f364e7cSRobert Mustacchi { 40*4f364e7cSRobert Mustacchi return ((uintptr_t)&curthread->ul_tmem - (uintptr_t)curthread); 41*4f364e7cSRobert Mustacchi } 42*4f364e7cSRobert Mustacchi 43*4f364e7cSRobert Mustacchi int _tmem_get_nentries(void)44*4f364e7cSRobert Mustacchi_tmem_get_nentries(void) 45*4f364e7cSRobert Mustacchi { 46*4f364e7cSRobert Mustacchi return (NTMEMBASE); 47*4f364e7cSRobert Mustacchi } 48*4f364e7cSRobert Mustacchi 49*4f364e7cSRobert Mustacchi void _tmem_set_cleanup(tmem_func_t f)50*4f364e7cSRobert Mustacchi_tmem_set_cleanup(tmem_func_t f) 51*4f364e7cSRobert Mustacchi { 52*4f364e7cSRobert Mustacchi tmem_cleanup = f; 53*4f364e7cSRobert Mustacchi } 54*4f364e7cSRobert Mustacchi 55*4f364e7cSRobert Mustacchi /* 56*4f364e7cSRobert Mustacchi * This is called by _thrp_exit() to clean up any per-thread allocations that 57*4f364e7cSRobert Mustacchi * are still hanging around and haven't been cleaned up. 58*4f364e7cSRobert Mustacchi */ 59*4f364e7cSRobert Mustacchi void tmem_exit(void)60*4f364e7cSRobert Mustacchitmem_exit(void) 61*4f364e7cSRobert Mustacchi { 62*4f364e7cSRobert Mustacchi int ii; 63*4f364e7cSRobert Mustacchi void *buf, *next; 64*4f364e7cSRobert Mustacchi tumem_t *tp = &curthread->ul_tmem; 65*4f364e7cSRobert Mustacchi 66*4f364e7cSRobert Mustacchi 67*4f364e7cSRobert Mustacchi if (tp->tm_size == 0) 68*4f364e7cSRobert Mustacchi return; 69*4f364e7cSRobert Mustacchi 70*4f364e7cSRobert Mustacchi /* 71*4f364e7cSRobert Mustacchi * Since we have something stored here, we need to ensure we declared a 72*4f364e7cSRobert Mustacchi * clean up handler. If we haven't that's broken and our single private 73*4f364e7cSRobert Mustacchi * consumer should be shot. 74*4f364e7cSRobert Mustacchi */ 75*4f364e7cSRobert Mustacchi if (tmem_cleanup == NULL) 76*4f364e7cSRobert Mustacchi abort(); 77*4f364e7cSRobert Mustacchi for (ii = 0; ii < NTMEMBASE; ii++) { 78*4f364e7cSRobert Mustacchi buf = tp->tm_roots[ii]; 79*4f364e7cSRobert Mustacchi while (buf != NULL) { 80*4f364e7cSRobert Mustacchi next = *(void **)buf; 81*4f364e7cSRobert Mustacchi tmem_cleanup(buf, ii); 82*4f364e7cSRobert Mustacchi buf = next; 83*4f364e7cSRobert Mustacchi } 84*4f364e7cSRobert Mustacchi } 85*4f364e7cSRobert Mustacchi } 86