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 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 22 * Use is subject to license terms. 23 */ 24 /* 25 * Copyright 2019 Joyent, Inc. 26 */ 27 28 #ifndef _SYS_MC_H 29 #define _SYS_MC_H 30 31 /* 32 * Public interfaces exposed by the memory controller driver 33 */ 34 35 #include <sys/cpuvar.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #define MC_UNUM_NAMLEN 192 42 #define MC_UNUM_NDIMM 2 43 44 typedef struct mc_unum { 45 int unum_board; /* system board */ 46 int unum_chip; /* chip/socket */ 47 int unum_mc; /* memory-controller or branch */ 48 int unum_chan; /* DRAM channel */ 49 int unum_cs; /* chip-select */ 50 int unum_rank; /* rank */ 51 uint64_t unum_offset; /* row, column, bank-select etc */ 52 int unum_dimms[MC_UNUM_NDIMM]; 53 } mc_unum_t; 54 55 /* 56 * Invalid marker used in some numeric properties 57 */ 58 #define MC_INVALNUM ((uint32_t)-1) 59 60 /* 61 * /dev/mc/mc* ioctl cmds 62 */ 63 #define MC_IOC (0x4d43 << 16) 64 #define MC_IOC_SNAPSHOT_INFO (MC_IOC | 1) 65 #define MC_IOC_SNAPSHOT (MC_IOC | 2) 66 #define MC_IOC_ONLINESPARE_EN (MC_IOC | 4) 67 #define MC_IOC_DECODE_PA (MC_IOC | 5) 68 #define MC_IOC_DECODE_SNAPSHOT_INFO (MC_IOC | 6) 69 #define MC_IOC_DECODE_SNAPSHOT (MC_IOC | 7) 70 71 /* 72 * Prior to requesting a copy of the snapshot, consumers are advised to request 73 * information regarding the snapshot. An mc_snapshot_info_t will be returned, 74 * containing the snapshot size as well as the snapshot generation number. Note 75 * that, due to the potentially dynamic nature of the system, the snapshot may 76 * change at any time. As such, the information in the mc_snapshot_info_t may 77 * be out of date by the time it is used. The generation number is used to 78 * track snapshot changes. That is, the generation number will be updated each 79 * time the source data for the snapshot is updated. The consumer should not 80 * attach any meaning to the magnitude of a generation number change, and pay 81 * attention only to the fact that the number has changed. 82 */ 83 typedef struct mc_snapshot_info { 84 uint32_t mcs_size; /* snapshot size */ 85 uint_t mcs_gen; /* snapshot generation number */ 86 } mc_snapshot_info_t; 87 88 /* 89 * Data used to simulate encoding or decoding of a physical / DIMM address. 90 */ 91 typedef struct mc_encode_ioc { 92 uint64_t mcei_pa; 93 uint64_t mcei_errdata; 94 uint32_t mcei_err; 95 uint32_t mcei_board; 96 uint32_t mcei_chip; 97 uint32_t mcei_mc; 98 uint32_t mcei_chan; 99 uint32_t mcei_dimm; 100 uint64_t mcei_rank_addr; 101 uint32_t mcei_rank; 102 uint32_t mcei_row; 103 uint32_t mcei_column; 104 uint32_t mcei_pad; 105 } mc_encode_ioc_t; 106 107 #ifdef __cplusplus 108 } 109 #endif 110 111 #endif /* _SYS_MC_H */ 112