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) 1994-2000 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31 
32 /*
33  * This service converts the given physical address into a text string,
34  * representing the name of the field-replacable part for the given
35  * physical address. In other words, it tells the kernel which chip got
36  * the (un)correctable ECC error, which info is hopefully relayed to the user!
37  */
38 int
prom_get_unum(int syn_code,unsigned long long physaddr,char * buf,uint_t buflen,int * ustrlen)39 prom_get_unum(int syn_code, unsigned long long physaddr, char *buf,
40 		uint_t buflen, int *ustrlen)
41 {
42 	cell_t ci[12];
43 	int rv;
44 	ihandle_t imemory = prom_memory_ihandle();
45 
46 	*ustrlen = -1;
47 	if ((imemory == (ihandle_t)-1))
48 		return (-1);
49 
50 	ci[0] = p1275_ptr2cell("call-method");		/* Service name */
51 	ci[1] = (cell_t)7;				/* #argument cells */
52 	ci[2] = (cell_t)2;				/* #result cells */
53 	ci[3] = p1275_ptr2cell("SUNW,get-unumber");	/* Arg1: Method name */
54 	ci[4] = p1275_ihandle2cell(imemory);		/* Arg2: mem. ihandle */
55 	ci[5] = p1275_uint2cell(buflen);		/* Arg3: buflen */
56 	ci[6] = p1275_ptr2cell(buf);			/* Arg4: buf */
57 	ci[7] = p1275_ull2cell_high(physaddr);		/* Arg5: physhi */
58 	ci[8] = p1275_ull2cell_low(physaddr);		/* Arg6: physlo */
59 	ci[9] = p1275_int2cell(syn_code);		/* Arg7: bit # */
60 	ci[10] = (cell_t)-1;				/* ret1: catch result */
61 	ci[11] = (cell_t)-1;				/* ret2: length */
62 
63 	promif_preprom();
64 	rv = p1275_cif_handler(&ci);
65 	promif_postprom();
66 
67 	if (rv != 0)
68 		return (rv);
69 	if (p1275_cell2int(ci[10]) != 0)	/* Res1: catch result */
70 		return (-1);			/* "SUNW,get-unumber" failed */
71 	*ustrlen = p1275_cell2uint(ci[11]);	/* Res2: unum str length */
72 	return (0);
73 }
74