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 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _MCAMD_DIMMCFG_H
28 #define	_MCAMD_DIMMCFG_H
29 
30 #include <sys/types.h>
31 #include <sys/mc_amd.h>
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 typedef struct mcdcfg_csl mcdcfg_csl_t;
38 typedef struct mcdcfg_rslt mcdcfg_rslt_t;
39 
40 /*
41  * Chip-select line representation.
42  */
43 struct mcdcfg_csl {
44 	uint8_t	csl_chan;	/* 0 = A, 1 = B */
45 	uint8_t	csl_slot;	/* dimm slot on channel, 0/1/2/3 (pair #) */
46 	uint8_t	csl_rank;	/* dimm rank in slot, 0/1/2/3 */
47 };
48 
49 /*
50  * Results structure for mdcfg_lookup
51  */
52 struct mcdcfg_rslt {
53 	int	ldimm;			/* logical DIMM number */
54 	int	ndimm;			/* # of associated physical dimms */
55 	struct {
56 		int	toponum;		/* dimm instance in topology */
57 		const mcdcfg_csl_t *cslp;	/* chip-select parameters */
58 	} dimm[MC_CHIP_DIMMPERCS];	/* ndimm entries are valid */
59 };
60 
61 /*
62  * Chip-select line name maximum string length
63  */
64 #define	MCDCFG_CSNAMELEN 32
65 
66 extern int mcdcfg_lookup(uint32_t, int, int, int, uint32_t, int, int,
67     mcdcfg_rslt_t *);
68 extern void mcdcfg_csname(uint32_t, const mcdcfg_csl_t *, char *, int);
69 
70 
71 #ifdef __cplusplus
72 }
73 #endif
74 
75 #endif /* _MCAMD_DIMMCFG_H */
76