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/linux-6.15/lib/
H A Dunion_find.c41 if (root1->rank < root2->rank) { in uf_union()
43 } else if (root1->rank > root2->rank) { in uf_union()
47 root1->rank++; in uf_union()
/linux-6.15/Documentation/devicetree/bindings/memory-controllers/ddr/
H A Djedec,lpddr-channel.yaml7 title: LPDDR channel with chip/rank topology description
34 channel is equal to the sum of the densities of each rank on the
51 "^rank@[0-9]+$":
56 transaction on the channel targets exactly one rank, based on the
70 "^rank@[0-9]+$":
79 "^rank@[0-9]+$":
88 "^rank@[0-9]+$":
97 "^rank@[0-9]+$":
116 rank@0 {
131 rank@0 {
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H A Djedec,lpddr-props.yaml31 The rank number of this LPDDR rank when used as a subnode to an LPDDR
/linux-6.15/Documentation/translations/zh_CN/core-api/
H A Dunion_find.rst51 unsigned int rank;
54 其中parent为当前节点的父节点，rank为当前树的高度，在合并时将rank小的节点接到rank大
60 可以采用静态或初始化接口完成初始化操作。初始化时，parent 指针指向自身，rank 设置
/linux-6.15/drivers/s390/cio/
H A Dscm.c104 scm_attr(rank);
141 scmdev->attrs.rank = sale->rank; in scmdev_setup()
145 scmdev->attrs.rank = sale->rank; in scmdev_setup()
163 changed = scmdev->attrs.rank != sale->rank || in scmdev_update()
165 scmdev->attrs.rank = sale->rank; in scmdev_update()
/linux-6.15/include/linux/
H A Dunion_find.h16 unsigned int rank; member
20 #define UF_INIT_NODE(node) {.parent = &node, .rank = 0}
32 node->rank = 0; in uf_node_init()
/linux-6.15/drivers/edac/
H A Di5100_edac.c357 int chan, int rank) in i5100_rank_to_slot() argument
367 if (priv->dimm_csmap[i][j] == rank) in i5100_rank_to_slot()
430 unsigned rank, in i5100_handle_ce() argument
445 chan, rank, -1, in i5100_handle_ce()
452 unsigned rank, in i5100_handle_ue() argument
467 chan, rank, -1, in i5100_handle_ue()
481 unsigned rank; in i5100_read_log() local
499 rank = i5100_recmema_rank(dw2); in i5100_read_log()
521 rank = i5100_nrecmema_rank(dw2); in i5100_read_log()
777 u8 rank; in i5100_init_dimm_layout() local
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H A Dal_mc_edac.c65 u8 rank, u32 row, u8 bg, u8 bank, u16 column, in prepare_msg() argument
71 rank, row, bg, bank, column, syn0, syn1, syn2); in prepare_msg()
81 u8 rank, bg, bank; in handle_ce() local
100 rank = FIELD_GET(AL_MC_ECC_CE_ADDR0_RANK, ecccaddr0); in handle_ce()
108 rank, row, bg, bank, column, in handle_ce()
126 u8 rank, bg, bank; in handle_ue() local
145 rank = FIELD_GET(AL_MC_ECC_UE_ADDR0_RANK, eccuaddr0); in handle_ue()
153 rank, row, bg, bank, column, in handle_ue()
H A Di3200_edac.c137 u64 rank = ((log & I3200_ECCERRLOG_RANK_BITS) >> in eccerrlog_row() local
139 return rank | (channel * I3200_RANKS_PER_CHANNEL); in eccerrlog_row()
317 int channel, int rank) in drb_to_nr_pages() argument
321 n = drbs[channel][rank]; in drb_to_nr_pages()
325 if (rank > 0) in drb_to_nr_pages()
326 n -= drbs[channel][rank - 1]; in drb_to_nr_pages()
328 drbs[channel][rank] == drbs[channel][I3200_RANKS_PER_CHANNEL - 1]) in drb_to_nr_pages()
H A Docteon_edac-lmc.c32 unsigned long rank; member
94 fadr.cn61xx.fbunk = pvt->rank; in octeon_lmc_edac_poll_o2()
160 TEMPLATE_SHOW(rank);
161 TEMPLATE_STORE(rank);
203 static DEVICE_ATTR(rank, S_IRUGO | S_IWUSR,
H A Dx38_edac.c301 bool stacked, int channel, int rank) in drb_to_nr_pages() argument
305 n = drbs[channel][rank]; in drb_to_nr_pages()
306 if (rank > 0) in drb_to_nr_pages()
307 n -= drbs[channel][rank - 1]; in drb_to_nr_pages()
308 if (stacked && (channel == 1) && drbs[channel][rank] == in drb_to_nr_pages()
H A Di5000_edac.c469 int rank; in i5000_process_fatal_error_info() local
482 rank = NREC_RANK(info->nrecmema); in i5000_process_fatal_error_info()
488 rank, channel, bank, in i5000_process_fatal_error_info()
529 channel >> 1, channel & 1, rank, in i5000_process_fatal_error_info()
554 int rank; in i5000_process_nonfatal_error_info() local
577 rank = NREC_RANK(info->nrecmema); in i5000_process_nonfatal_error_info()
624 rank, bank, ras, cas, ue_errors, specific); in i5000_process_nonfatal_error_info()
628 channel >> 1, -1, rank, in i5000_process_nonfatal_error_info()
649 rank = REC_RANK(info->recmema); in i5000_process_nonfatal_error_info()
655 rank, channel, branch >> 1, bank, in i5000_process_nonfatal_error_info()
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H A Dedac_mc_sysfs.c204 struct rank_info *rank = csrow->channels[chan]; in channel_dimm_label_show() local
207 if (!rank->dimm->label[0]) in channel_dimm_label_show()
210 return sysfs_emit(data, "%s\n", rank->dimm->label); in channel_dimm_label_show()
219 struct rank_info *rank = csrow->channels[chan]; in channel_dimm_label_store() local
228 if (copy_count == 0 || copy_count >= sizeof(rank->dimm->label)) in channel_dimm_label_store()
231 memcpy(rank->dimm->label, data, copy_count); in channel_dimm_label_store()
232 rank->dimm->label[copy_count] = '\0'; in channel_dimm_label_store()
243 struct rank_info *rank = csrow->channels[chan]; in channel_ce_count_show() local
245 return sysfs_emit(data, "%u\n", rank->ce_count); in channel_ce_count_show()
H A Di5400_edac.c522 int rank; in i5400_proccess_non_recoverable_info() local
547 rank = nrec_rank(info); in i5400_proccess_non_recoverable_info()
554 type, rank, channel, channel + 1, branch >> 1, bank, in i5400_proccess_non_recoverable_info()
566 branch >> 1, -1, rank, in i5400_proccess_non_recoverable_info()
586 int rank; in i5400_process_nonfatal_error_info() local
618 rank = rec_rank(info); in i5400_process_nonfatal_error_info()
627 rank, channel, branch >> 1, bank, in i5400_process_nonfatal_error_info()
638 branch >> 1, channel % 2, rank, in i5400_process_nonfatal_error_info()
H A Dpnd2_edac.c58 int rank; member
912 int column = 0, bank = 0, row = 0, rank = 0; in apl_pmi2mem() local
949 rank = bit; in apl_pmi2mem()
951 rank ^= rank_hash(pmiaddr); in apl_pmi2mem()
966 daddr->rank = rank; in apl_pmi2mem()
979 daddr->rank = dnv_get_bit(pmiaddr, dmap[pmiidx].rs0 + 13, 0); in dnv_pmi2mem()
981 daddr->rank |= dnv_get_bit(pmiaddr, dmap[pmiidx].rs1 + 13, 1); in dnv_pmi2mem()
987 daddr->dimm = (daddr->rank >= 2) ^ drp[pmiidx].dimmflip; in dnv_pmi2mem()
1117 addr, pmiaddr, daddr->chan, daddr->dimm, daddr->rank, daddr->bank, daddr->row, daddr->col); in get_memory_error_data()
1187 errcode, daddr->chan, daddr->dimm, daddr->rank, daddr->row, daddr->bank, daddr->col); in pnd2_mce_output_error()
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H A Dxgene_edac.c181 u32 rank; in xgene_edac_mc_check() local
193 for (rank = 0; rank < MCU_MAX_RANK; rank++) { in xgene_edac_mc_check()
194 reg = readl(ctx->mcu_csr + MCUESRR0 + rank * MCU_RANK_STRIDE); in xgene_edac_mc_check()
201 "MCU uncorrectable error at rank %d\n", rank); in xgene_edac_mc_check()
210 rank * MCU_RANK_STRIDE); in xgene_edac_mc_check()
212 rank * MCU_RANK_STRIDE); in xgene_edac_mc_check()
214 rank * MCU_RANK_STRIDE); in xgene_edac_mc_check()
217 rank, MCU_EBLRR_ERRBANK_RD(bank), in xgene_edac_mc_check()
227 writel(0x0, ctx->mcu_csr + MCUEBLRR0 + rank * MCU_RANK_STRIDE); in xgene_edac_mc_check()
230 rank * MCU_RANK_STRIDE); in xgene_edac_mc_check()
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/linux-6.15/Documentation/ABI/testing/
H A Dsysfs-devices-edac86 What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/size
92 stick. For rank*/size, this is the size, in MB for one rank
93 of the DIMM memory stick. On single rank memories (1R), this
94 is also the total size of the dimm. On dual rank (2R) memories,
97 What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_dev_type
112 What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_label
127 What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_location
132 branch/channel/slot or channel/slot) of the dimm or rank.
134 What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_mem_type
142 What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_ce_count
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/linux-6.15/Documentation/edac/
H A Dmemory_repair.rst55 sparing has cacheline/row/bank/rank sparing granularities. For example, in
56 rank memory-sparing mode, one memory rank serves as a spare for other ranks on
59 The spare rank is held in reserve and not used as active memory until
64 the content of a failing rank of DIMMs is copied to the spare rank. The
65 failing rank is then taken offline and the spare rank placed online for use as
66 active memory in place of the failed rank.
75 rank is replaced.
/linux-6.15/Documentation/core-api/
H A Dunion_find.rst37 the find operation, and using union by rank can reduce the time complexity
59 unsigned int rank;
63 The rank field represents the height of the current tree. During a union
64 operation, the tree with the smaller rank is attached under the tree with the
65 larger rank to maintain balance.
71 interface. Initialize the parent pointer to point to itself and set the rank
102 and then link the smaller node to the larger node based on the rank of the root
/linux-6.15/drivers/s390/block/
H A Dscm_blk.h66 u8 rank; in SCM_LOG_STATE() member
70 .rank = scmdev->attrs.rank, in SCM_LOG_STATE()
/linux-6.15/drivers/perf/arm_cspmu/
H A Dampere_cspmu.c37 SOC_PMU_EVENT_ATTR_EXTRACTOR(rank, config1, 8, 23);
106 ARM_CSPMU_FORMAT_ATTR(rank, "config1:8-23"),
147 u32 threshold, rank, bank; in ampere_cspmu_set_ev_filter() local
150 rank = get_rank(event); in ampere_cspmu_set_ev_filter()
154 writel(rank, cspmu->base0 + PMAUXR1); in ampere_cspmu_set_ev_filter()
/linux-6.15/drivers/memory/tegra/
H A Dtegra210-emc-core.c59 #define TRIM_REG(chan, rank, reg, byte) \ argument
60 (((EMC_PMACRO_OB_DDLL_LONG_DQ_RANK ## rank ## _ ## reg ## \
63 rank ## _ ## reg ## _INDEX]) >> \
64 EMC_PMACRO_OB_DDLL_LONG_DQ_RANK ## rank ## _ ## reg ## \
67 (((EMC_DATA_BRLSHFT_ ## rank ## _RANK ## rank ## _BYTE ## \
70 _EMC_DATA_BRLSHFT_ ## rank ## _INDEX]) >> \
71 EMC_DATA_BRLSHFT_ ## rank ## _RANK ## rank ## _BYTE ## \
74 #define CALC_TEMP(rank, reg, byte1, byte2, n) \ argument
77 EMC_PMACRO_OB_DDLL_LONG_DQ_RANK ## rank ## _ ## reg ## \
82 EMC_PMACRO_OB_DDLL_LONG_DQ_RANK ## rank ## _ ## reg ## \
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/linux-6.15/Documentation/admin-guide/perf/
H A Dampere_cspmu.rst15 The PMU driver supports setting filters for "rank", "bank", and "threshold".
28 …/ # perf stat -a -e ampere_mcu_pmu_0/act_sent,bank=5,rank=3,threshold=2/,ampere_mcu_pmu_1/rd_sent/…
/linux-6.15/Documentation/filesystems/
H A Ddirectory-locking.rst124 it should be possible to rank the filesystems so that directory operation
138 them in order of non-decreasing rank. Namely,
140 * rank ->i_rwsem of non-directories on given filesystem in inode pointer
142 * put ->i_rwsem of all directories on a filesystem at the same rank,
144 * put ->s_vfs_rename_mutex at rank lower than that of any ->i_rwsem
147 rank of those filesystems.
152 2. ->i_rwsem of directories on that NFS filesystem, same rank for all
156 5. ->i_rwsem of directories on the local filesystem, same rank for all
160 It's easy to verify that operations never take a lock with rank
168 contended locks in the minimal deadlock will be of the same rank,
/linux-6.15/drivers/cxl/core/
H A Dtrace.h462 __field(u8, rank)
484 __entry->rank = rec->media_hdr.rank;
515 __entry->channel, __entry->rank, __entry->device,
603 __field(u8, rank) /* Out of order to pack trace record */
630 __entry->rank = rec->media_hdr.rank;
667 __entry->channel, __entry->rank, __entry->nibble_mask,

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