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 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 22 * Use is subject to license terms. 23 */ 24 25 /* 26 * Given a unum including an offset calculate the associated system 27 * address. This may be different to when the original PA to unum 28 * calculation took place if interleave etc has changed. 29 */ 30 31 #include <sys/errno.h> 32 #include <sys/types.h> 33 #include <sys/mc.h> 34 35 #include <mcamd_api.h> 36 #include <mcamd_err.h> 37 38 /* 39 * The submitted unum must have the MC and DIMM numbers and an offset. 40 * Any cs info it has will not be used - we will reconstruct cs info. 41 * This is because cs is not in the topology used for diagnosis. 42 */ 43 int 44 mcamd_unumtopa(struct mcamd_hdl *hdl, mcamd_node_t *root, mc_unum_t *unump, 45 uint64_t *pa) 46 { 47 mcamd_node_t *mc, *dimm; 48 uint64_t num, holesz; 49 50 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_unumtopa: chip %d " 51 "mc %d dimm %d offset 0x%llx\n", unump->unum_chip, unump->unum_mc, 52 unump->unum_dimms[0], unump->unum_offset); 53 54 if (!MCAMD_RC_OFFSET_VALID(unump->unum_offset)) { 55 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_unumtopa: offset " 56 "invalid\n"); 57 return (mcamd_set_errno(hdl, EMCAMD_NOADDR)); 58 } 59 60 /* 61 * Search current config for a MC number matching the chip in the 62 * unum. 63 */ 64 for (mc = mcamd_mc_next(hdl, root, NULL); mc != NULL; 65 mc = mcamd_mc_next(hdl, root, mc)) { 66 if (!mcamd_get_numprops(hdl, 67 mc, MCAMD_PROP_NUM, &num, 68 mc, MCAMD_PROP_DRAMHOLE_SIZE, &holesz, 69 NULL)) { 70 mcamd_dprintf(hdl, MCAMD_DBG_ERR, "mcamd_unumtopa: " 71 "failed to lookup num, dramhole for MC 0x%p\n", mc); 72 return (mcamd_set_errno(hdl, EMCAMD_TREEINVALID)); 73 } 74 if (num == unump->unum_chip) 75 break; 76 } 77 if (mc == NULL) { 78 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_unumtopa; " 79 "no match for MC %d\n", unump->unum_chip); 80 return (mcamd_set_errno(hdl, EMCAMD_NOADDR)); 81 } 82 83 /* 84 * Search DIMMs of this MC. We can match against the 85 * first dimm in the unum - if there is more than one they all 86 * share the same chip-selects anyway and the pa we will resolve 87 * to is not finer grained than the 128-bits of a dimm pair. 88 */ 89 for (dimm = mcamd_dimm_next(hdl, mc, NULL); dimm != NULL; 90 dimm = mcamd_dimm_next(hdl, mc, dimm)) { 91 if (!mcamd_get_numprop(hdl, dimm, MCAMD_PROP_NUM, &num)) { 92 mcamd_dprintf(hdl, MCAMD_DBG_ERR, "mcamd_unumtopa: " 93 "failed to lookup num for dimm 0xx%p\n", 94 dimm); 95 return (mcamd_set_errno(hdl, EMCAMD_TREEINVALID)); 96 } 97 if (num == unump->unum_dimms[0]) 98 break; 99 } 100 if (dimm == NULL) { 101 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_unumtopa; " 102 "no match for dimm %d cs %d on MC %d\n", 103 unump->unum_dimms[0], unump->unum_cs, unump->unum_chip); 104 return (mcamd_set_errno(hdl, EMCAMD_NOADDR)); 105 } 106 107 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_unumtopa: matched " 108 "mc 0x%p dimm 0x%p; resolving offset 0x%llx\n", 109 mc, dimm, unump->unum_offset); 110 111 if (mc_offset_to_pa(hdl, mc, dimm, unump->unum_offset, pa) < 0) { 112 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_unumtopa: " 113 "mc_offset_to_pa failed: %s\n", mcamd_errmsg(hdl)); 114 return (-1); /* errno already set */ 115 } 116 117 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_unumtopa: " 118 "mc_offset_to_pa succeeded and returned pa=0x%llx: %\n", 119 *pa); 120 121 /* 122 * If this MC has a dram address hole just below 4GB then we must 123 * hoist all address from the hole start upwards by the hole size 124 */ 125 if (holesz != 0) { 126 if (*pa >= 0x100000000 - holesz) 127 *pa += holesz; 128 mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mcamd_untopa: hoist " 129 "above dram hole of size 0x%llx to get pa=0x%llx", 130 holesz, *pa); 131 } 132 133 return (0); 134 } 135