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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. 23 * All rights reserved. Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include "drmP.h" 29 #include <sys/kstat.h> 30 #include <sys/ddi.h> 31 #include <sys/sunddi.h> 32 #include <sys/sunldi.h> 33 34 static char *drmkstat_name[] = { 35 "opens", 36 "closes", 37 "IOCTLs", 38 "locks", 39 "unlocks", 40 NULL 41 }; 42 43 static int 44 drm_kstat_update(kstat_t *ksp, int flag) 45 { 46 drm_softstate_t *sc; 47 kstat_named_t *knp; 48 int tmp; 49 50 if (flag != KSTAT_READ) 51 return (EACCES); 52 53 sc = ksp->ks_private; 54 knp = ksp->ks_data; 55 56 for (tmp = 1; tmp < 6; tmp++) { 57 (knp++)->value.ui32 = sc->counts[tmp]; 58 } 59 60 return (0); 61 } 62 63 int 64 drm_init_kstats(drm_softstate_t *sc) 65 { 66 int instance; 67 kstat_t *ksp; 68 kstat_named_t *knp; 69 char *np; 70 char **aknp; 71 72 instance = ddi_get_instance(sc->dip); 73 aknp = drmkstat_name; 74 ksp = kstat_create("drm", instance, "drminfo", "drm", 75 KSTAT_TYPE_NAMED, sizeof (drmkstat_name)/sizeof (char *) - 1, 76 KSTAT_FLAG_PERSISTENT); 77 if (ksp == NULL) 78 return (NULL); 79 80 ksp->ks_private = sc; 81 ksp->ks_update = drm_kstat_update; 82 for (knp = ksp->ks_data; (np = (*aknp)) != NULL; knp++, aknp++) { 83 kstat_named_init(knp, np, KSTAT_DATA_UINT32); 84 } 85 kstat_install(ksp); 86 87 sc->asoft_ksp = ksp; 88 89 return (0); 90 } 91 92 void 93 drm_fini_kstats(drm_softstate_t *sc) 94 { 95 ASSERT(sc->asoft_ksp); 96 kstat_delete(sc->asoft_ksp); 97 } 98