/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include <sys/types.h> #include <sys/serengeti.h> #include <sys/errno.h> #include <sys/systm.h> #include <sys/cmn_err.h> /* * When an ECC error occurs on an E$ DIMM, the error handling code requests a * unum to provide a human-readable physical location to the part that * experienced the error. * * Previously, on Serengeti and LW8, a prom call was made to get this * information. However, calling COBP to do a simple string format is * inefficient. All the necessary information is now kept here. * * Since this data is now kept in two places (COBP and here), care must be * taken so that the two locations are kept the same. Any changes to the * jnumber array will require a change to COBP code so that the two arrays * match. Any changes to the unum string format will require changes in both * the COBP code (to match the code here) and plat_ecc_unum.c (to read the * new format). These changes should not be necessary, except to reflect a * new cpu or board type. */ /* * The following array holds the jnumbers for Ecache DIMMs. The first index * is the proc position on the board (0 through 3) and the second index is * the DIMM number (0 or 1). */ static int sg_j_number[SG_MAX_CMPS_PER_BD][SG_NUM_ECACHE_DIMMS_PER_CPU] = { { 4400, 4300 }, { 5400, 5300 }, { 6400, 6300 }, { 7400, 7300 } }; /* * Generate the unum for the specified cpuid and physical address. Put the * unum in buf, which is of size buflen. Return the length of the string in * lenp. * * Return 0 if successful, and an error number otherwise. */ int sg_get_ecacheunum(int cpuid, uint64_t physaddr, char *buf, uint_t buflen, int *lenp) { int node = SG_PORTID_TO_NODEID(cpuid); int board = SG_CPU_BD_PORTID_TO_BD_NUM(cpuid); int proc = SG_PORTID_TO_CPU_POSN(cpuid); int dimm = (physaddr & SG_ECACHE_DIMM_MASK) >> SG_ECACHE_DIMM_SHIFT; /* * node and dimm will always be valid. board and proc may be -1 if * an invalid cpuid is passed in. */ if ((board == -1) || (proc == -1)) { return (EINVAL); } *lenp = snprintf(buf, buflen, "/N%d/SB%d/P%d/E%d J%d", node, board, proc, dimm, sg_j_number[proc][dimm]); return (0); }