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 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _GCPU_H 28 #define _GCPU_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include <sys/cpu_module_impl.h> 34 #include <sys/cpu_module_ms.h> 35 #include <sys/ksynch.h> 36 #include <sys/systm.h> 37 #include <sys/fm/util.h> 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 #define GCPU_MCA_ERRS_PERCPU 10 /* errorq slots per cpu */ 44 #define GCPU_MCA_MIN_ERRORS 30 /* minimum total errorq slots */ 45 #define GCPU_MCA_MAX_ERRORS 100 /* maximum total errorq slots */ 46 47 typedef struct gcpu_data gcpu_data_t; 48 49 #define GCPU_ERRCODE_MASK_ALL 0xffff 50 51 typedef struct gcpu_error_disp { 52 const char *ged_class_fmt; /* ereport class formatter (last bit) */ 53 const char *ged_compound_fmt; /* compound error formatter */ 54 uint64_t ged_ereport_members; /* ereport payload members */ 55 uint16_t ged_errcode_mask_on; /* errcode bits that must be set ... */ 56 uint16_t ged_errcode_mask_off; /* ... and must be clear for a match */ 57 } gcpu_error_disp_t; 58 59 /* 60 * For errorq_dispatch we need to have a single contiguous structure 61 * capturing all our logout data. We do not know in advance how many 62 * error detector banks there are in this cpu model, so we'll manually 63 * allocate additional space for the gcl_banks array below. 64 */ 65 typedef struct gcpu_bank_logout { 66 uint64_t gbl_status; /* MCi_STATUS value */ 67 uint64_t gbl_addr; /* MCi_ADDR value */ 68 uint64_t gbl_misc; /* MCi_MISC value */ 69 uint64_t gbl_disp; /* Error disposition for this bank */ 70 uint32_t gbl_clrdefcnt; /* Count of deferred status clears */ 71 } gcpu_bank_logout_t; 72 73 /* 74 * The data structure we "logout" all error telemetry from all banks of 75 * a cpu to. The gcl_data array declared with 1 member below will actually 76 * have gcl_nbanks members - variable with the actual cpu model present. 77 * After the gcl_data array there is a further model-specific array that 78 * may be allocated, and gcl_ms_logout will point to that if present. 79 * This cpu logout data must form one contiguous chunk of memory for 80 * dispatch with errorq_dispatch. 81 */ 82 typedef struct gcpu_logout { 83 gcpu_data_t *gcl_gcpu; /* pointer to per-cpu gcpu_data_t */ 84 uintptr_t gcl_ip; /* instruction pointer from #mc trap */ 85 uint64_t gcl_timestamp; /* gethrtime() at logout */ 86 uint64_t gcl_mcg_status; /* MCG_STATUS register value */ 87 uint64_t gcl_flags; /* Flags */ 88 pc_t gcl_stack[FM_STK_DEPTH]; /* saved stack trace, if any */ 89 int gcl_stackdepth; /* saved stack trace depth */ 90 int gcl_nbanks; /* number of banks in array below */ 91 void *gcl_ms_logout; /* Model-specific area after gcl_data */ 92 gcpu_bank_logout_t gcl_data[1]; /* Bank logout areas - must be last */ 93 } gcpu_logout_t; 94 95 /* 96 * gcl_flag values 97 */ 98 #define GCPU_GCL_F_PRIV 0x1 /* #MC during privileged code */ 99 #define GCPU_GCL_F_TES_P 0x2 /* MCG_CAP indicates TES_P */ 100 101 struct gcpu_bios_bankcfg { 102 uint64_t bios_bank_ctl; 103 uint64_t bios_bank_status; 104 uint64_t bios_bank_addr; 105 uint64_t bios_bank_misc; 106 }; 107 108 struct gcpu_bios_cfg { 109 uint64_t bios_mcg_cap; 110 uint64_t bios_mcg_ctl; 111 struct gcpu_bios_bankcfg *bios_bankcfg; 112 }; 113 114 #define GCPU_MPT_WHAT_CYC_ERR 0 /* cyclic-induced poll */ 115 #define GCPU_MPT_WHAT_POKE_ERR 1 /* manually-induced poll */ 116 #define GCPU_MPT_WHAT_UNFAULTING 2 /* discarded error state */ 117 118 typedef struct gcpu_mca_poll_trace { 119 hrtime_t mpt_when; /* timestamp of event */ 120 uint8_t mpt_what; /* GCPU_MPT_WHAT_* (which event?) */ 121 uint8_t mpt_nerr; /* number of errors discovered */ 122 uint16_t mpt_pad1; 123 uint32_t mpt_pad2; 124 } gcpu_mca_poll_trace_t; 125 126 typedef struct gcpu_mca_poll_trace_ctl { 127 gcpu_mca_poll_trace_t *mptc_tbufs; /* trace buffers */ 128 uint_t mptc_curtrace; /* last buffer filled */ 129 } gcpu_mca_poll_trace_ctl_t; 130 131 /* Index for gcpu_mca_logout array below */ 132 #define GCPU_MCA_LOGOUT_EXCEPTION 0 /* area for #MC */ 133 #define GCPU_MCA_LOGOUT_POLLER_1 1 /* next/prev poll area */ 134 #define GCPU_MCA_LOGOUT_POLLER_2 2 /* prev/next poll area */ 135 #define GCPU_MCA_LOGOUT_NUM 3 136 137 typedef struct gcpu_mca { 138 gcpu_logout_t *gcpu_mca_logout[GCPU_MCA_LOGOUT_NUM]; 139 uint32_t gcpu_mca_nextpoll_idx; /* logout area for next poll */ 140 struct gcpu_bios_cfg gcpu_mca_bioscfg; 141 uint_t gcpu_mca_nbanks; 142 uint32_t gcpu_actv_banks; /* MCA banks we initialized */ 143 size_t gcpu_mca_lgsz; /* size of gcpu_mca_logout structs */ 144 uint_t gcpu_mca_flags; /* GCPU_MCA_F_* */ 145 hrtime_t gcpu_mca_lastpoll; 146 gcpu_mca_poll_trace_ctl_t gcpu_mca_polltrace; 147 } gcpu_mca_t; 148 149 typedef struct gcpu_mce_status { 150 uint_t mce_nerr; /* total errors found in logout of all banks */ 151 uint64_t mce_disp; /* Disposition information */ 152 uint_t mce_npcc; /* number of errors with PCC */ 153 uint_t mce_npcc_ok; /* PCC with CMS_ERRSCOPE_CURCONTEXT_OK */ 154 uint_t mce_nuc; /* number of errors with UC */ 155 uint_t mce_nuc_ok; /* UC with CMS_ERRSCOPE_CLEARED_UC */ 156 uint_t mce_nuc_poisoned; /* UC with CMS_ERRSCOPE_POISONED */ 157 uint_t mce_forcefatal; /* CMS_ERRSCOPE_FORCE_FATAL */ 158 uint_t mce_ignored; /* CMS_ERRSCOPE_IGNORE_ERR */ 159 } gcpu_mce_status_t; 160 161 /* 162 * Flags for gcpu_mca_flags 163 */ 164 #define GCPU_MCA_F_UNFAULTING 0x1 /* CPU exiting faulted state */ 165 166 /* 167 * State shared by all cpus on a chip 168 */ 169 struct gcpu_chipshared { 170 kmutex_t gcpus_cfglock; /* serial MCA config from chip cores */ 171 kmutex_t gcpus_poll_lock; /* serialize pollers on the same chip */ 172 uint32_t gcpus_actv_banks; /* MCA bank numbers active on chip */ 173 }; 174 175 struct gcpu_data { 176 gcpu_mca_t gcpu_mca; /* MCA state for this CPU */ 177 cmi_hdl_t gcpu_hdl; /* associated handle */ 178 struct gcpu_chipshared *gcpu_shared; /* Shared state for the chip */ 179 }; 180 181 #ifdef _KERNEL 182 183 struct regs; 184 185 /* 186 * CMI implementation 187 */ 188 extern int gcpu_init(cmi_hdl_t, void **); 189 extern void gcpu_post_startup(cmi_hdl_t); 190 extern void gcpu_post_mpstartup(cmi_hdl_t); 191 extern void gcpu_faulted_enter(cmi_hdl_t); 192 extern void gcpu_faulted_exit(cmi_hdl_t); 193 extern void gcpu_mca_init(cmi_hdl_t); 194 extern cmi_errno_t gcpu_msrinject(cmi_hdl_t, cmi_mca_regs_t *, uint_t, int); 195 extern uint64_t gcpu_mca_trap(cmi_hdl_t, struct regs *); 196 extern void gcpu_hdl_poke(cmi_hdl_t); 197 198 /* 199 * Local functions 200 */ 201 extern void gcpu_mca_poll_init(cmi_hdl_t); 202 extern void gcpu_mca_poll_start(cmi_hdl_t); 203 extern void gcpu_mca_logout(cmi_hdl_t, struct regs *, uint64_t, 204 gcpu_mce_status_t *, boolean_t); 205 206 #endif /* _KERNEL */ 207 208 #ifdef __cplusplus 209 } 210 #endif 211 212 #endif /* _GCPU_H */ 213