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 /* 23 * Copyright (c) 2000 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _SGSGN_H 28 #define _SGSGN_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <sys/inttypes.h> 37 #include <sys/sysmacros.h> 38 39 /* 40 * Type definitions for layout in I/O SRAM of CPU signatures. 41 * 42 * The cpusig array bound is a white lie. The SC will allocate 43 * enough space for this array so that it can be indexed by any 44 * valid cpu id. Generally, this means that there will be about 45 * NCPU entries in the array. However, NCPU is a kernel defined 46 * value that may be larger than the actual maximum; the SC 47 * allocates based strictly on the hardware's capabilities, not on 48 * the kernel's definition of NCPU. 49 */ 50 51 typedef struct { 52 uint32_t magic; 53 uint32_t version; 54 uint32_t domainsig; 55 uint32_t pad; 56 uint32_t cpusig[1]; 57 } sg_sgnblk_t; 58 59 60 /* 61 * Access to the signature block in I/O SRAM is done by calls to 62 * iosram_write(), which believes in offsets, not pointers. 63 * Below are the relevant offsets. 64 */ 65 #define SG_SGNBLK_MAGIC_OFFSET \ 66 (offsetof(sg_sgnblk_t, magic)) 67 #define SG_SGNBLK_VERSION_OFFSET \ 68 (offsetof(sg_sgnblk_t, version)) 69 #define SG_SGNBLK_DOMAINSIG_OFFSET \ 70 (offsetof(sg_sgnblk_t, domainsig)) 71 #define SG_SGNBLK_CPUSIG_OFFSET(cpuid) \ 72 (offsetof(sg_sgnblk_t, cpusig) + (cpuid)*sizeof (uint32_t)) 73 74 75 #ifdef __cplusplus 76 } 77 #endif 78 79 #endif /* _SGSGN_H */ 80