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 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * The CPU module for the AMD Athlon64 and Opteron processors 31 */ 32 33 #include <sys/types.h> 34 #include <sys/cmn_err.h> 35 #include <sys/sunddi.h> 36 #include <sys/cpu_module_impl.h> 37 #include <sys/cpuvar.h> 38 #include <sys/x86_archext.h> 39 #include <sys/kmem.h> 40 #include <sys/modctl.h> 41 #include <sys/mc.h> 42 43 #include "ao.h" 44 45 /* 46 * At present this CPU module only supports the features for Athlon64 and 47 * Opteron up to and including the Rev E processor. If we detect Rev F or 48 * later, return ENOTSUP and let the generic x86 CPU module load instead. 49 * Opteron Rev F is currently defined as Family 0xF Model [0x40 .. 0x5F]. 50 */ 51 uint_t ao_model_limit = 0x40; 52 53 static int 54 ao_init(cpu_t *cp, void **datap) 55 { 56 ao_data_t *ao; 57 58 if (cpuid_getmodel(cp) >= ao_model_limit) 59 return (ENOTSUP); 60 61 ao = *datap = kmem_zalloc(sizeof (ao_data_t), KM_SLEEP); 62 ao->ao_cpu = cp; 63 64 return (0); 65 } 66 67 /*ARGSUSED*/ 68 static void 69 ao_post_mpstartup(void *data) 70 { 71 (void) ddi_install_driver("mc-amd"); 72 } 73 74 static void 75 ao_fini(void *data) 76 { 77 kmem_free(data, sizeof (ao_data_t)); 78 } 79 80 const cmi_ops_t _cmi_ops = { 81 ao_init, 82 ao_mca_post_init, 83 ao_post_mpstartup, 84 ao_fini, 85 ao_faulted_enter, 86 ao_faulted_exit, 87 ao_scrubber_enable, 88 ao_mca_init, 89 ao_mca_trap, 90 ao_mca_inject, 91 ao_mca_poke, 92 ao_mc_register, 93 ao_mc_getops 94 }; 95 96 static struct modlcpu modlcpu = { 97 &mod_cpuops, 98 "AMD Athlon64/Opteron CPU Module" 99 }; 100 101 static struct modlinkage modlinkage = { 102 MODREV_1, 103 (void *)&modlcpu, 104 NULL 105 }; 106 107 int 108 _init(void) 109 { 110 int err; 111 112 ao_mca_queue = errorq_create("ao_mca_queue", 113 ao_mca_drain, NULL, AO_MCA_MAX_ERRORS * (max_ncpus + 1), 114 sizeof (ao_cpu_logout_t), 1, ERRORQ_VITAL); 115 116 if (ao_mca_queue == NULL) 117 return (EAGAIN); /* errorq_create() logs a message for us */ 118 119 if ((err = mod_install(&modlinkage)) != 0) { 120 errorq_destroy(ao_mca_queue); 121 ao_mca_queue = NULL; 122 } 123 124 return (err); 125 } 126 127 int 128 _info(struct modinfo *modinfop) 129 { 130 return (mod_info(&modlinkage, modinfop)); 131 } 132 133 int 134 _fini(void) 135 { 136 int err; 137 138 if ((err = mod_remove(&modlinkage)) == 0) 139 errorq_destroy(ao_mca_queue); 140 141 return (err); 142 } 143