xref: /onnv-gate/usr/src/psm/promif/ieee1275/sun4/prom_getunum.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright (c) 1994-2000 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate  * All rights reserved.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <sys/promif.h>
30*0Sstevel@tonic-gate #include <sys/promimpl.h>
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate /*
33*0Sstevel@tonic-gate  * This service converts the given physical address into a text string,
34*0Sstevel@tonic-gate  * representing the name of the field-replacable part for the given
35*0Sstevel@tonic-gate  * physical address. In other words, it tells the kernel which chip got
36*0Sstevel@tonic-gate  * the (un)correctable ECC error, which info is hopefully relayed to the user!
37*0Sstevel@tonic-gate  */
38*0Sstevel@tonic-gate int
prom_get_unum(int syn_code,unsigned long long physaddr,char * buf,uint_t buflen,int * ustrlen)39*0Sstevel@tonic-gate prom_get_unum(int syn_code, unsigned long long physaddr, char *buf,
40*0Sstevel@tonic-gate 		uint_t buflen, int *ustrlen)
41*0Sstevel@tonic-gate {
42*0Sstevel@tonic-gate 	cell_t ci[12];
43*0Sstevel@tonic-gate 	int rv;
44*0Sstevel@tonic-gate 	ihandle_t imemory = prom_memory_ihandle();
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate 	*ustrlen = -1;
47*0Sstevel@tonic-gate 	if ((imemory == (ihandle_t)-1))
48*0Sstevel@tonic-gate 		return (-1);
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate 	ci[0] = p1275_ptr2cell("call-method");		/* Service name */
51*0Sstevel@tonic-gate 	ci[1] = (cell_t)7;				/* #argument cells */
52*0Sstevel@tonic-gate 	ci[2] = (cell_t)2;				/* #result cells */
53*0Sstevel@tonic-gate 	ci[3] = p1275_ptr2cell("SUNW,get-unumber");	/* Arg1: Method name */
54*0Sstevel@tonic-gate 	ci[4] = p1275_ihandle2cell(imemory);		/* Arg2: mem. ihandle */
55*0Sstevel@tonic-gate 	ci[5] = p1275_uint2cell(buflen);		/* Arg3: buflen */
56*0Sstevel@tonic-gate 	ci[6] = p1275_ptr2cell(buf);			/* Arg4: buf */
57*0Sstevel@tonic-gate 	ci[7] = p1275_ull2cell_high(physaddr);		/* Arg5: physhi */
58*0Sstevel@tonic-gate 	ci[8] = p1275_ull2cell_low(physaddr);		/* Arg6: physlo */
59*0Sstevel@tonic-gate 	ci[9] = p1275_int2cell(syn_code);		/* Arg7: bit # */
60*0Sstevel@tonic-gate 	ci[10] = (cell_t)-1;				/* ret1: catch result */
61*0Sstevel@tonic-gate 	ci[11] = (cell_t)-1;				/* ret2: length */
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate 	promif_preprom();
64*0Sstevel@tonic-gate 	rv = p1275_cif_handler(&ci);
65*0Sstevel@tonic-gate 	promif_postprom();
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate 	if (rv != 0)
68*0Sstevel@tonic-gate 		return (rv);
69*0Sstevel@tonic-gate 	if (p1275_cell2int(ci[10]) != 0)	/* Res1: catch result */
70*0Sstevel@tonic-gate 		return (-1);			/* "SUNW,get-unumber" failed */
71*0Sstevel@tonic-gate 	*ustrlen = p1275_cell2uint(ci[11]);	/* Res2: unum str length */
72*0Sstevel@tonic-gate 	return (0);
73*0Sstevel@tonic-gate }
74