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 #ifndef _SYS_MC_H 26 #define _SYS_MC_H 27 28 #pragma ident "%Z%%M% %I% %E% SMI" 29 30 /* 31 * Public interfaces exposed by the memory controller driver 32 */ 33 34 #include <sys/cpuvar.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 #define MC_UNUM_NAMLEN 192 41 #define MC_UNUM_NDIMM 2 42 43 typedef struct mc_unum { 44 int unum_board; /* system board */ 45 int unum_chip; /* chip/socket */ 46 int unum_mc; /* memory-controller or branch */ 47 int unum_chan; /* DRAM channel */ 48 int unum_cs; /* chip-select */ 49 int unum_rank; /* rank */ 50 uint64_t unum_offset; /* row, column, bank-select etc */ 51 int unum_dimms[MC_UNUM_NDIMM]; 52 } mc_unum_t; 53 54 /* 55 * Invalid marker used in some numeric properties 56 */ 57 #define MC_INVALNUM ((uint32_t)-1) 58 59 /* 60 * /dev/mc/mc* ioctl cmds 61 */ 62 #define MC_IOC (0x4d43 << 16) 63 #define MC_IOC_SNAPSHOT_INFO (MC_IOC | 1) 64 #define MC_IOC_SNAPSHOT (MC_IOC | 2) 65 #define MC_IOC_ONLINESPARE_EN (MC_IOC | 4) 66 67 /* 68 * Prior to requesting a copy of the snapshot, consumers are advised to request 69 * information regarding the snapshot. An mc_snapshot_info_t will be returned, 70 * containing the snapshot size as well as the snapshot generation number. Note 71 * that, due to the potentially dynamic nature of the system, the snapshot may 72 * change at any time. As such, the information in the mc_snapshot_info_t may 73 * be out of date by the time it is used. The generation number is used to 74 * track snapshot changes. That is, the generation number will be updated each 75 * time the source data for the snapshot is updated. The consumer should not 76 * attach any meaning to the magnitude of a generation number change, and pay 77 * attention only to the fact that the number has changed. 78 */ 79 typedef struct mc_snapshot_info { 80 uint32_t mcs_size; /* snapshot size */ 81 uint_t mcs_gen; /* snapshot generation number */ 82 } mc_snapshot_info_t; 83 84 #ifdef __cplusplus 85 } 86 #endif 87 88 #endif /* _SYS_MC_H */ 89