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 2004 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 #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/cpuvar.h> 30*0Sstevel@tonic-gate #include <sys/kdi_impl.h> 31*0Sstevel@tonic-gate #include <sys/reboot.h> 32*0Sstevel@tonic-gate #include <sys/errno.h> 33*0Sstevel@tonic-gate #include <sys/atomic.h> 34*0Sstevel@tonic-gate #include <sys/kmem.h> 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate kdi_debugvec_t *kdi_dvec; 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate static kdi_dtrace_state_t kdi_dtrace_state = KDI_DTSTATE_IDLE; 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate void 41*0Sstevel@tonic-gate kdi_dvec_enter(void) 42*0Sstevel@tonic-gate { 43*0Sstevel@tonic-gate kdi_dvec->dv_enter(); 44*0Sstevel@tonic-gate } 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate /* 47*0Sstevel@tonic-gate * Called on the CPU being initialized 48*0Sstevel@tonic-gate */ 49*0Sstevel@tonic-gate void 50*0Sstevel@tonic-gate kdi_dvec_cpu_init(struct cpu *cp) 51*0Sstevel@tonic-gate { 52*0Sstevel@tonic-gate kdi_dvec->dv_kctl_cpu_init(); 53*0Sstevel@tonic-gate kdi_dvec->dv_cpu_init(cp); 54*0Sstevel@tonic-gate } 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate #if defined(__i386) || defined(__amd64) 57*0Sstevel@tonic-gate void 58*0Sstevel@tonic-gate kdi_dvec_idt_sync(gate_desc_t *idt) 59*0Sstevel@tonic-gate { 60*0Sstevel@tonic-gate kdi_dvec->dv_idt_sync(idt); 61*0Sstevel@tonic-gate } 62*0Sstevel@tonic-gate #endif /* __i386 || __amd64 */ 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate void 65*0Sstevel@tonic-gate kdi_dvec_vmready(void) 66*0Sstevel@tonic-gate { 67*0Sstevel@tonic-gate kdi_dvec->dv_kctl_vmready(); 68*0Sstevel@tonic-gate kdi_dvec->dv_vmready(); 69*0Sstevel@tonic-gate } 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate void 72*0Sstevel@tonic-gate kdi_dvec_memavail(void) 73*0Sstevel@tonic-gate { 74*0Sstevel@tonic-gate /* 75*0Sstevel@tonic-gate * The driver will allocate more memory (if requested), and will call 76*0Sstevel@tonic-gate * dv_memavail itself. 77*0Sstevel@tonic-gate */ 78*0Sstevel@tonic-gate kdi_dvec->dv_kctl_memavail(); 79*0Sstevel@tonic-gate } 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate #if defined(__sparc) 82*0Sstevel@tonic-gate void 83*0Sstevel@tonic-gate kdi_dvec_cpr_restart(void) 84*0Sstevel@tonic-gate { 85*0Sstevel@tonic-gate kdi_dvec->dv_kctl_cpu_init(); 86*0Sstevel@tonic-gate kdi_dvec->dv_cpr_restart(); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate #endif /* __sparc */ 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate void 91*0Sstevel@tonic-gate kdi_dvec_modavail(void) 92*0Sstevel@tonic-gate { 93*0Sstevel@tonic-gate kdi_dvec->dv_kctl_modavail(); 94*0Sstevel@tonic-gate } 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate void 97*0Sstevel@tonic-gate kdi_dvec_thravail(void) 98*0Sstevel@tonic-gate { 99*0Sstevel@tonic-gate kdi_dvec->dv_kctl_thravail(); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate void 103*0Sstevel@tonic-gate kdi_dvec_mod_loaded(struct modctl *modp) 104*0Sstevel@tonic-gate { 105*0Sstevel@tonic-gate kdi_dvec->dv_mod_loaded(modp); 106*0Sstevel@tonic-gate } 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate void 109*0Sstevel@tonic-gate kdi_dvec_mod_unloading(struct modctl *modp) 110*0Sstevel@tonic-gate { 111*0Sstevel@tonic-gate kdi_dvec->dv_mod_unloading(modp); 112*0Sstevel@tonic-gate } 113*0Sstevel@tonic-gate 114*0Sstevel@tonic-gate kdi_dtrace_state_t 115*0Sstevel@tonic-gate kdi_dtrace_get_state(void) 116*0Sstevel@tonic-gate { 117*0Sstevel@tonic-gate return (kdi_dtrace_state); 118*0Sstevel@tonic-gate } 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate int 121*0Sstevel@tonic-gate kdi_dtrace_set(kdi_dtrace_set_t transition) 122*0Sstevel@tonic-gate { 123*0Sstevel@tonic-gate kdi_dtrace_state_t new, cur; 124*0Sstevel@tonic-gate 125*0Sstevel@tonic-gate do { 126*0Sstevel@tonic-gate cur = kdi_dtrace_state; 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate switch (transition) { 129*0Sstevel@tonic-gate case KDI_DTSET_DTRACE_ACTIVATE: 130*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE) 131*0Sstevel@tonic-gate return (EBUSY); 132*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_DTRACE_ACTIVE) 133*0Sstevel@tonic-gate return (0); 134*0Sstevel@tonic-gate new = KDI_DTSTATE_DTRACE_ACTIVE; 135*0Sstevel@tonic-gate break; 136*0Sstevel@tonic-gate case KDI_DTSET_DTRACE_DEACTIVATE: 137*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE) 138*0Sstevel@tonic-gate return (EBUSY); 139*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_IDLE) 140*0Sstevel@tonic-gate return (0); 141*0Sstevel@tonic-gate new = KDI_DTSTATE_IDLE; 142*0Sstevel@tonic-gate break; 143*0Sstevel@tonic-gate case KDI_DTSET_KMDB_BPT_ACTIVATE: 144*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_DTRACE_ACTIVE) 145*0Sstevel@tonic-gate return (EBUSY); 146*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE) 147*0Sstevel@tonic-gate return (0); 148*0Sstevel@tonic-gate new = KDI_DTSTATE_KMDB_BPT_ACTIVE; 149*0Sstevel@tonic-gate break; 150*0Sstevel@tonic-gate case KDI_DTSET_KMDB_BPT_DEACTIVATE: 151*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_DTRACE_ACTIVE) 152*0Sstevel@tonic-gate return (EBUSY); 153*0Sstevel@tonic-gate if (cur == KDI_DTSTATE_IDLE) 154*0Sstevel@tonic-gate return (0); 155*0Sstevel@tonic-gate new = KDI_DTSTATE_IDLE; 156*0Sstevel@tonic-gate break; 157*0Sstevel@tonic-gate default: 158*0Sstevel@tonic-gate return (EINVAL); 159*0Sstevel@tonic-gate } 160*0Sstevel@tonic-gate } while (cas32((uint_t *)&kdi_dtrace_state, cur, new) != cur); 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate return (0); 163*0Sstevel@tonic-gate } 164