/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (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 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include /* * Convenience structures to stash MC and CS properties in. */ struct mcprops { mcamd_prop_t num; /* corresponding chip number */ mcamd_prop_t rev; /* revision */ mcamd_prop_t width; /* access width */ mcamd_prop_t base; /* MC base address */ mcamd_prop_t lim; /* MC limit address */ mcamd_prop_t csbnkmap_reg; /* chip-select bank map */ mcamd_prop_t intlven; /* Node-intlv mask */ mcamd_prop_t intlvsel; /* Node-intlv selection for this node */ mcamd_prop_t csintlvfctr; /* cs intlv factor on this node */ mcamd_prop_t bnkswzl; /* bank-swizzle mode */ mcamd_prop_t sparecs; /* spare cs#, if any */ mcamd_prop_t badcs; /* substituted cs#, if any */ }; struct csprops { mcamd_prop_t num; /* chip-select number */ mcamd_prop_t base; /* chip-select base address */ mcamd_prop_t mask; /* chip-select mask */ mcamd_prop_t testfail; /* marked testFail */ mcamd_prop_t dimmrank; /* rank number on dimm(s) */ }; static int getmcprops(struct mcamd_hdl *hdl, mcamd_node_t *mc, const char *caller, struct mcprops *pp) { if (!mcamd_get_numprops(hdl, mc, MCAMD_PROP_NUM, &pp->num, mc, MCAMD_PROP_REV, &pp->rev, mc, MCAMD_PROP_ACCESS_WIDTH, &pp->width, mc, MCAMD_PROP_BASE_ADDR, &pp->base, mc, MCAMD_PROP_LIM_ADDR, &pp->lim, mc, MCAMD_PROP_CSBANKMAPREG, &pp->csbnkmap_reg, mc, MCAMD_PROP_ILEN, &pp->intlven, mc, MCAMD_PROP_ILSEL, &pp->intlvsel, mc, MCAMD_PROP_CSINTLVFCTR, &pp->csintlvfctr, mc, MCAMD_PROP_BANKSWZL, &pp->bnkswzl, mc, MCAMD_PROP_SPARECS, &pp->sparecs, mc, MCAMD_PROP_BADCS, &pp->badcs, NULL)) { mcamd_dprintf(hdl, MCAMD_DBG_ERR, "%s: failed to read mc " "props for mc 0x%p\n", caller, mc); return (mcamd_set_errno(hdl, EMCAMD_TREEINVALID)); } return (0); } static int getcsprops(struct mcamd_hdl *hdl, mcamd_node_t *cs, const char *caller, struct csprops *csp) { if (!mcamd_get_numprops(hdl, cs, MCAMD_PROP_NUM, &csp->num, cs, MCAMD_PROP_BASE_ADDR, &csp->base, cs, MCAMD_PROP_MASK, &csp->mask, cs, MCAMD_PROP_TESTFAIL, &csp->testfail, cs, MCAMD_PROP_DIMMRANK, &csp->dimmrank, NULL)) { mcamd_dprintf(hdl, MCAMD_DBG_ERR, "%s: failed to read cs " "props for cs 0x%p\n", caller, cs); return (mcamd_set_errno(hdl, EMCAMD_TREEINVALID)); } return (0); } static int gettbls(struct mcamd_hdl *hdl, uint_t csmode, struct mcprops *mcpp, const struct rct_bnkaddrmode **bamp, const struct rct_rcbmap **rcbmp, const struct rct_bnkswzlinfo **swzlp, struct rct_csintlv *csid, const char *caller) { uint_t rev = (uint_t)mcpp->rev; int width = (int)mcpp->width; if (bamp && (*bamp = rct_bnkaddrmode(rev, csmode)) == NULL) { mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "%s: no bank address mode " "table for MC rev %d csmode %d\n", caller, rev, csmode); return (mcamd_set_errno(hdl, EMCAMD_NOTSUP)); } if (rcbmp && (*rcbmp = rct_rcbmap(rev, width, csmode)) == NULL) { mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "%s: no dram address map " "table for MC rev %d csmode %d\n", caller, rev, csmode); return (mcamd_set_errno(hdl, EMCAMD_NOTSUP)); } if (swzlp && (*swzlp = rct_bnkswzlinfo(rev, width)) == NULL) { mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "%s: no bank swizzling " "table for MC rev %d width %d\n", caller, rev, width); return (mcamd_set_errno(hdl, EMCAMD_NOTSUP)); } if (csid) { if (mcpp->csintlvfctr > 1) { rct_csintlv_bits(rev, width, csmode, mcpp->csintlvfctr, csid); if (csid->csi_factor == 0) { mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "%s: " "could not work out cs interleave " "paramters for MC rev %d, width %d, " "csmode %d, factor %d\n", caller, rev, width, csmode, (int)mcpp->csintlvfctr); return (mcamd_set_errno(hdl, EMCAMD_NOTSUP)); } } else { csid->csi_factor = 0; } } return (0); } static uint64_t iaddr_add(struct mcamd_hdl *hdl, uint64_t in, uint64_t add, const char *what) { uint64_t new = in | add; mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "%s: 0x%llx | 0x%llx --> 0x%llx", what, in, add, new); return (add); } /* * Where the number of row/col address bits is ambiguous (affects CG and * earlier only) we will assign the "floating" bit to row address. If * we adopt the same convention in address reconstruction then all should work. */ static uint32_t iaddr_to_row(struct mcamd_hdl *hdl, const struct rct_bnkaddrmode *bamp, const struct rct_rcbmap *rcbm, struct rct_csintlv *csid, uint64_t iaddr) { uint32_t addr = 0; int abitno, ibitno; int nbits = bamp->bam_nrows; int swapped = 0; for (abitno = 0; abitno < nbits; abitno++) { ibitno = rcbm->rcb_rowbit[abitno]; if (MC_RC_CSI_SWAPPED_BIT(csid, ibitno)) { ibitno = MC_RC_CSI_BITSWAP(csid, ibitno); swapped++; } if (BITVAL(iaddr, ibitno) != 0) SETBIT(addr, abitno); } mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "iaddr_to_row: iaddr 0x%llx --> " "row 0x%x (%d bits swapped for cs intlv)\n", iaddr, addr, swapped); return (addr); } /*ARGSUSED*/ static uint64_t row_to_iaddr(struct mcamd_hdl *hdl, const struct rct_bnkaddrmode *bamp, const struct rct_rcbmap *rcbm, struct rct_csintlv *csid, uint32_t rowaddr) { uint64_t iaddr = 0; int abitno, ibitno; int nbits = bamp->bam_nrows; for (abitno = 0; abitno < nbits; abitno++) { if (BIT(rowaddr, abitno) == 0) continue; ibitno = rcbm->rcb_rowbit[abitno]; if (MC_RC_CSI_SWAPPED_BIT(csid, ibitno)) { ibitno = MC_RC_CSI_BITSWAP(csid, ibitno); } SETBIT(iaddr, ibitno); } return (iaddr); } static uint32_t iaddr_to_col(struct mcamd_hdl *hdl, const struct rct_bnkaddrmode *bamp, const struct rct_rcbmap *rcbm, uint64_t iaddr) { uint32_t addr = 0; int abitno, ibitno, bias = 0; int nbits = bamp->bam_ncols; /* * Knock off a column bit if the numbers are ambiguous */ if (bamp->bam_ambig) nbits--; for (abitno = 0; abitno < nbits; abitno++) { if (abitno == MC_PC_COLADDRBIT) bias = 1; ibitno = rcbm->rcb_colbit[abitno + bias]; if (BITVAL(iaddr, ibitno) != 0) SETBIT(addr, abitno); } mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "iaddr_to_col: iaddr 0x%llx --> " "col 0x%x\n", iaddr, addr); return (addr); } /*ARGSUSED*/ static uint64_t col_to_iaddr(struct mcamd_hdl *hdl, const struct rct_bnkaddrmode *bamp, const struct rct_rcbmap *rcbm, uint32_t coladdr) { uint64_t iaddr = 0; int abitno, ibitno, bias = 0; int nbits = bamp->bam_ncols; /* * Knock off a column bit if the numbers are ambiguous */ if (bamp->bam_ambig) nbits--; for (abitno = 0; abitno < nbits; abitno++) { if (BIT(coladdr, abitno) == 0) continue; if (abitno == MC_PC_COLADDRBIT) bias = 1; ibitno = rcbm->rcb_colbit[abitno + bias]; SETBIT(iaddr, ibitno); } return (iaddr); } /* * Extract bank bit arguments and swizzle if requested. */ static uint32_t iaddr_to_bank(struct mcamd_hdl *hdl, const struct rct_rcbmap *rcbm, const struct rct_bnkswzlinfo *swzlp, uint64_t iaddr) { uint32_t addr = 0; int abitno, ibitno, i; for (abitno = 0; abitno < rcbm->rcb_nbankbits; abitno++) { uint32_t val; /* * rcb_bankbit[abitno] tells us which iaddr bit number * will form bit abitno of the bank address */ ibitno = rcbm->rcb_bankbit[abitno]; val = BITVAL(iaddr, ibitno); /* * If bank swizzling is in operation then xor the bit value * obtained above with other iaddr bits. */ if (swzlp) { for (i = 0; i < MC_RC_SWZLBITS; i++) { ibitno = swzlp->bswz_rowbits[abitno][i]; val ^= BITVAL(iaddr, ibitno); } } if (val) SETBIT(addr, abitno); } mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "iaddr_to_bank: iaddr 0x%llx --> " "bank 0x%x\n", iaddr, addr); return (addr); } /* * bank_to_iaddr requires the iaddr reconstructed thus far with at least the * row bits repopulated. That's because in bank swizzle mode * the bank bits are the result of xor'ing three original iaddr bits * together - two of which come from the row address and the third we * can reconstruct here. Note that a zero bankaddr bit *can* result * in a nonzero iaddr bit (unlike in row and col reconstruction). */ /*ARGSUSED*/ static uint64_t bank_to_iaddr(struct mcamd_hdl *hdl, const struct rct_rcbmap *rcbm, const struct rct_bnkswzlinfo *swzlp, uint64_t partiaddr, uint32_t bankaddr) { uint64_t iaddr = 0; int abitno, pibitno, i; for (abitno = 0; abitno < rcbm->rcb_nbankbits; abitno++) { uint32_t val = BITVAL(bankaddr, abitno); if (swzlp) { for (i = 0; i < MC_RC_SWZLBITS; i++) { pibitno = swzlp->bswz_rowbits[abitno][i]; val ^= BITVAL(partiaddr, pibitno); } } if (val) SETBIT(iaddr, rcbm->rcb_bankbit[abitno]); } return (iaddr); } static int iaddr_to_rcb(struct mcamd_hdl *hdl, uint_t csmode, struct mcprops *mcpp, uint64_t iaddr, uint32_t *rowp, uint32_t *colp, uint32_t *bankp) { const struct rct_bnkaddrmode *bamp; const struct rct_rcbmap *rcbmp; const struct rct_bnkswzlinfo *swzlp = NULL; struct rct_csintlv csi; if (gettbls(hdl, csmode, mcpp, &bamp, &rcbmp, mcpp->bnkswzl ? &swzlp : NULL, &csi, "iaddr_to_rcb") < 0) return (-1); /* errno already set */ *rowp = iaddr_to_row(hdl, bamp, rcbmp, &csi, iaddr); *colp = iaddr_to_col(hdl, bamp, rcbmp, iaddr); *bankp = iaddr_to_bank(hdl, rcbmp, swzlp, iaddr); return (0); } /* * Take a reconstructed InputAddr and undo the normalization described in * BKDG 3.29 3.4.4 to include the base address of the MC if no node * interleave or to insert the node interleave selection bits. */ static int iaddr_unnormalize(struct mcamd_hdl *hdl, struct mcprops *mcpp, uint64_t iaddr, uint64_t *rsltp) { uint64_t dramaddr; int intlvbits; switch (mcpp->intlven) { case 0x0: intlvbits = 0; break; case 0x1: intlvbits = 1; break; case 0x3: intlvbits = 2; break; case 0x7: intlvbits = 3; break; default: mcamd_dprintf(hdl, MCAMD_DBG_ERR, "iaddr_unnormalize: " "illegal IntlvEn of %d for MC 0x%p\n", (int)mcpp->intlven, (int)mcpp->num); return (mcamd_set_errno(hdl, EMCAMD_TREEINVALID)); } if (intlvbits != 0) { /* * For a 2/4/8 way interleave iaddr was formed by excising * 1, 2, or 3 bits 12:12, 13:12, or 14:12 from dramaddr, * the removed bits having done their job by selecting the * responding node. So we must move bits 35:12 of the * reconstructed iaddr up to make a 1, 2 or 3 bit hole and * then fill those bits with the current IntlvSel value for * this node. The node base address must be zero if nodes * are interleaved. * * Note that the DRAM controller InputAddr is still 36 bits * 35:0 on rev F. */ dramaddr = (BITS(iaddr, 35, 12) << intlvbits) | (mcpp->intlvsel << 12) | BITS(iaddr, 11, 0); } else { dramaddr = iaddr + mcpp->base; } *rsltp = dramaddr; mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "iaddr_unnormalize: iaddr 0x%llx " "intlven 0x%x intlvsel 0x%x MC base 0x%llx --> 0x%llx\n", iaddr, (int)mcpp->intlven, (int)mcpp->intlvsel, (int)mcpp->base, dramaddr); return (0); } int mc_pa_to_offset(struct mcamd_hdl *hdl, mcamd_node_t *mc, mcamd_node_t *cs, uint64_t iaddr, uint64_t *offsetp) { mcamd_dimm_offset_un_t offset_un; uint_t csmode; uint32_t bankaddr, rowaddr, coladdr; struct mcprops mcp; struct csprops csp; *offsetp = MCAMD_RC_INVALID_OFFSET; if (getmcprops(hdl, mc, "mc_dimm_offset", &mcp) < 0 || getcsprops(hdl, cs, "mc_dimm_offset", &csp) < 0) return (-1); /* errno already set */ csmode = MC_CS_MODE(mcp.csbnkmap_reg, csp.num); if (iaddr_to_rcb(hdl, csmode, &mcp, iaddr, &rowaddr, &coladdr, &bankaddr) < 0) return (-1); /* errno already set */ offset_un.do_offset = 0; offset_un.do_valid = 1; offset_un.do_version = MCAMD_OFFSET_VERSION; offset_un.do_rank = csp.dimmrank; offset_un.do_row = rowaddr; offset_un.do_bank = bankaddr; offset_un.do_col = coladdr; *offsetp = offset_un.do_offset; return (0); } /* * Given an MC, DIMM and offset (dimm rank, row, col, internal bank) we * find the corresponding chip-select for the rank and then reconstruct * a system address. In the absence of serial number support it is possible * that we may be asked to perform this operation on a dimm which has been * swapped, perhaps even for a dimm of different size and number of ranks. * This may happen if fmadm repair has not been used. There are some * unused bits in the offset and we could guard against this a little * by recording in those bit some of the physical characteristic of the * original DIMM such as size, number of ranks etc. */ int mc_offset_to_pa(struct mcamd_hdl *hdl, mcamd_node_t *mc, mcamd_node_t *dimm, uint64_t offset, uint64_t *pap) { mcamd_node_t *cs; mcamd_dimm_offset_un_t off_un; uint32_t rank, rowaddr, bankaddr, coladdr; uint64_t iaddr = 0; const struct rct_bnkaddrmode *bamp; const struct rct_rcbmap *rcbmp; const struct rct_bnkswzlinfo *swzlp = NULL; struct rct_csintlv csi; struct mcprops mcp; struct csprops csp; uint64_t csmode; int maskhi_hi, maskhi_lo, masklo_hi, masklo_lo; off_un.do_offset = offset; rank = off_un.do_rank; bankaddr = off_un.do_bank; rowaddr = off_un.do_row; coladdr = off_un.do_col; mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mc_offset_to_pa: offset 0x%llx " "-> rank %d bank %d row 0x%x col 0x%x\n", offset, rank, bankaddr, rowaddr, coladdr); if (getmcprops(hdl, mc, "mc_offset_to_pa", &mcp) < 0) return (-1); /* errno already set */ maskhi_hi = MC_CSMASKHI_HIBIT(mcp.rev); maskhi_lo = MC_CSMASKHI_LOBIT(mcp.rev); masklo_hi = MC_CSMASKLO_HIBIT(mcp.rev); masklo_lo = MC_CSMASKLO_LOBIT(mcp.rev); /* * Find the chip-select on this dimm using the given rank. */ for (cs = mcamd_cs_next(hdl, dimm, NULL); cs != NULL; cs = mcamd_cs_next(hdl, dimm, cs)) { if (getcsprops(hdl, cs, "mc_offset_to_pa", &csp) < 0) return (-1); /* errno already set */ if (csp.dimmrank == rank) break; } if (cs == NULL) { mcamd_dprintf(hdl, MCAMD_DBG_FLOW, "mc_offset_to_pa: Current " "dimm in this slot does not have a cs using rank %d\n", rank); return (mcamd_set_errno(hdl, EMCAMD_NOADDR)); } /* * If the cs# has been substituted by the online spare then the * given unum is not actually contributing to the system address * map since all accesses to it are redirected. * * If the cs# failed BIOS test it is not in the address map. * * If the cs# is the online spare cs# then it is contributing to * the system address map only if swapped in, and the csbase etc * parameters to use must be those of the bad cs#. */ if (mcp.badcs != MC_INVALNUM && csp.num == mcp.badcs) { return (mcamd_set_errno(hdl, EMCAMD_NOADDR)); } else if (csp.testfail) { return (mcamd_set_errno(hdl, EMCAMD_NOADDR)); } else if (mcp.sparecs != MC_INVALNUM && csp.num == mcp.sparecs && mcp.badcs != MC_INVALNUM) { /* * Iterate over all cs# of this memory controller to find * the bad one - the bad cs# need not be on the same dimm * as the spare. */ for (cs = mcamd_cs_next(hdl, mc, NULL); cs != NULL; cs = mcamd_cs_next(hdl, mc, cs)) { mcamd_prop_t csnum; if (!mcamd_get_numprop(hdl, cs, MCAMD_PROP_NUM, &csnum)) { mcamd_dprintf(hdl, MCAMD_DBG_ERR, "mcamd_offset_to_pa: csnum lookup failed " "while looking for bad cs#"); return (mcamd_set_errno(hdl, EMCAMD_TREEINVALID)); } if (csnum == mcp.badcs) break; } if (cs == NULL) { mcamd_dprintf(hdl, MCAMD_DBG_ERR, "mcamd_offset_to_pa: " "failed to find cs for bad cs#%d\n", mcp.badcs); return (mcamd_set_errno(hdl, EMCAMD_TREEINVALID)); } /* found bad cs - reread properties from it instead of spare */ if (getcsprops(hdl, cs, "mc_offset_to_pa", &csp) < 0) return (-1); /* errno already set */ } csmode = MC_CS_MODE(mcp.csbnkmap_reg, csp.num); if (gettbls(hdl, csmode, &mcp, &bamp, &rcbmp, mcp.bnkswzl ? &swzlp : NULL, &csi, "mc_offset_to_pa") < 0) return (-1); /* errno already set */ /* * If there are umaskable DRAM InputAddr bits the add those bits * to iaddr from the cs base address. */ if (MC_CSMASK_UNMASKABLE(mcp.rev) != 0) { iaddr |= iaddr_add(hdl, iaddr, BITS(csp.base, maskhi_hi + MC_CSMASK_UNMASKABLE(mcp.rev), maskhi_hi + 1), "unmaskable cs basehi bits"); } /* * basehi bits not meing masked pass straight through to the * iaddr. */ iaddr |= iaddr_add(hdl, iaddr, BITS(csp.base, maskhi_hi, maskhi_lo) & ~BITS(csp.mask, maskhi_hi, maskhi_lo), "cs basehi bits not being masked"); /* * if cs interleaving is active then baselo address bit are being * masked - pass the rest through. */ if (mcp.csintlvfctr > 1) { iaddr |= iaddr_add(hdl, iaddr, BITS(csp.base, masklo_hi, masklo_lo) & ~BITS(csp.mask, masklo_hi, masklo_lo), "cs baselo bits not being masked"); } /* * Reconstruct iaddr bits from known row address */ iaddr |= iaddr_add(hdl, iaddr, row_to_iaddr(hdl, bamp, rcbmp, &csi, rowaddr), "add iaddr bits from row"); /* * Reconstruct iaddr bits from known column address */ iaddr |= iaddr_add(hdl, iaddr, col_to_iaddr(hdl, bamp, rcbmp, coladdr), "add iaddr bits from col"); /* * Reconstruct iaddr bits from known internal banksel address */ iaddr |= iaddr_add(hdl, iaddr, bank_to_iaddr(hdl, rcbmp, swzlp, iaddr, bankaddr), "add iaddr bits from bank"); /* * Move iaddr up into the range for this MC and insert any * node interleave selection bits. */ if (iaddr_unnormalize(hdl, &mcp, iaddr, pap) < 0) return (-1); /* errno already set */ return (0); } int mcamd_cs_size(struct mcamd_hdl *hdl, mcamd_node_t *mc, int csnum, size_t *szp) { uint_t csmode; struct mcprops mcp; const struct rct_bnkaddrmode *bamp; if (getmcprops(hdl, mc, "mcamd_cs_size", &mcp) < 0) return (-1); /* errno already set */ csmode = MC_CS_MODE(mcp.csbnkmap_reg, csnum); if (gettbls(hdl, csmode, &mcp, &bamp, NULL, NULL, NULL, "mcamd_cs_size") < 0) return (-1); /* errno already set */ *szp = MC_CS_SIZE(bamp, mcp.width); return (0); }