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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_MC_H 27 #define _SYS_MC_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 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 8 43 44 typedef struct mc_unum { 45 int unum_board; 46 int unum_chip; 47 int unum_mc; 48 int unum_cs; 49 uint64_t unum_offset; 50 int unum_dimms[MC_UNUM_NDIMM]; 51 } mc_unum_t; 52 53 #define MC_AMD_DEV_OFFSET 24 /* node ID + offset == PCI dev num */ 54 55 #define MC_IOC (0x4d43 << 16) 56 #define MC_IOC_SNAPSHOT_INFO (MC_IOC | 1) 57 #define MC_IOC_SNAPSHOT (MC_IOC | 2) 58 59 /* 60 * Prior to requesting a copy of the snapshot, consumers are advised to request 61 * information regarding the snapshot. An mc_snapshot_info_t will be returned, 62 * containing the snapshot size as well as the snapshot generation number. Note 63 * that, due to the potentially dynamic nature of the system, the snapshot may 64 * change at any time. As such, the information in the mc_snapshot_info_t may 65 * be out of date by the time it is used. The generation number is used to 66 * track snapshot changes. That is, the generation number will be updated each 67 * time the source data for the snapshot is updated. The consumer should not 68 * attach any meaning to the magnitude of a generation number change, and pay 69 * attention only to the fact that the number has changed. 70 */ 71 typedef struct mc_snapshot_info { 72 uint32_t mcs_size; /* snapshot size */ 73 uint_t mcs_gen; /* snapshot generation number */ 74 } mc_snapshot_info_t; 75 76 #ifdef __cplusplus 77 } 78 #endif 79 80 #endif /* _SYS_MC_H */ 81