11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# Library configuration 31da177e4SLinus Torvalds# 41da177e4SLinus Torvalds 54370aa4aSLai Jiangshanconfig BINARY_PRINTF 64370aa4aSLai Jiangshan def_bool n 74370aa4aSLai Jiangshan 81da177e4SLinus Torvaldsmenu "Library routines" 91da177e4SLinus Torvalds 10f5e70d0fSDavid Woodhouseconfig RAID6_PQ 11f5e70d0fSDavid Woodhouse tristate 12f5e70d0fSDavid Woodhouse 13a5cfc1ecSAkinobu Mitaconfig BITREVERSE 14a5cfc1ecSAkinobu Mita tristate 15a5cfc1ecSAkinobu Mita 168759ef32SOskar Schirmerconfig RATIONAL 178759ef32SOskar Schirmer boolean 188759ef32SOskar Schirmer 192922585bSDavid S. Millerconfig GENERIC_STRNCPY_FROM_USER 202922585bSDavid S. Miller bool 212922585bSDavid S. Miller 22a08c5356SLinus Torvaldsconfig GENERIC_STRNLEN_USER 23a08c5356SLinus Torvalds bool 24a08c5356SLinus Torvalds 254cd5773aSAndy Shevchenkoconfig GENERIC_NET_UTILS 264cd5773aSAndy Shevchenko bool 274cd5773aSAndy Shevchenko 2819870defSAlexander van Heukelumconfig GENERIC_FIND_FIRST_BIT 299ba16087SJan Beulich bool 3019870defSAlexander van Heukelum 31b923650bSMichael S. Tsirkinconfig NO_GENERIC_PCI_IOPORT_MAP 32b923650bSMichael S. Tsirkin bool 33b923650bSMichael S. Tsirkin 3466eab4dfSMichael S. Tsirkinconfig GENERIC_PCI_IOMAP 3566eab4dfSMichael S. Tsirkin bool 3666eab4dfSMichael S. Tsirkin 374673ca8eSMichael S. Tsirkinconfig GENERIC_IOMAP 384673ca8eSMichael S. Tsirkin bool 3966eab4dfSMichael S. Tsirkin select GENERIC_PCI_IOMAP 404673ca8eSMichael S. Tsirkin 41087fafd1SRichard Weinbergerconfig GENERIC_IO 42087fafd1SRichard Weinberger boolean 43087fafd1SRichard Weinberger default n 44087fafd1SRichard Weinberger 454ccf4beaSWolfram Sangconfig STMP_DEVICE 464ccf4beaSWolfram Sang bool 474ccf4beaSWolfram Sang 4822b361d1SOleg Nesterovconfig PERCPU_RWSEM 4922b361d1SOleg Nesterov boolean 5022b361d1SOleg Nesterov 51bc08b449SLinus Torvaldsconfig ARCH_USE_CMPXCHG_LOCKREF 52bc08b449SLinus Torvalds bool 53bc08b449SLinus Torvalds 541da177e4SLinus Torvaldsconfig CRC_CCITT 551da177e4SLinus Torvalds tristate "CRC-CCITT functions" 561da177e4SLinus Torvalds help 571da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 581da177e4SLinus Torvalds modules require CRC-CCITT functions, but a module built outside 591da177e4SLinus Torvalds the kernel tree does. Such modules that use library CRC-CCITT 601da177e4SLinus Torvalds functions require M here. 611da177e4SLinus Torvalds 627657ec1fSEvgeniy Polyakovconfig CRC16 637657ec1fSEvgeniy Polyakov tristate "CRC16 functions" 647657ec1fSEvgeniy Polyakov help 657657ec1fSEvgeniy Polyakov This option is provided for the case where no in-kernel-tree 667657ec1fSEvgeniy Polyakov modules require CRC16 functions, but a module built outside 677657ec1fSEvgeniy Polyakov the kernel tree does. Such modules that use library CRC16 687657ec1fSEvgeniy Polyakov functions require M here. 697657ec1fSEvgeniy Polyakov 70f11f594eSMartin K. Petersenconfig CRC_T10DIF 71f11f594eSMartin K. Petersen tristate "CRC calculation for the T10 Data Integrity Field" 7268411521SHerbert Xu select CRYPTO 7368411521SHerbert Xu select CRYPTO_CRCT10DIF 74f11f594eSMartin K. Petersen help 75f11f594eSMartin K. Petersen This option is only needed if a module that's not in the 76f11f594eSMartin K. Petersen kernel tree needs to calculate CRC checks for use with the 77f11f594eSMartin K. Petersen SCSI data integrity subsystem. 78f11f594eSMartin K. Petersen 793e7cbae7SIvo van Doornconfig CRC_ITU_T 803e7cbae7SIvo van Doorn tristate "CRC ITU-T V.41 functions" 813e7cbae7SIvo van Doorn help 823e7cbae7SIvo van Doorn This option is provided for the case where no in-kernel-tree 833e7cbae7SIvo van Doorn modules require CRC ITU-T V.41 functions, but a module built outside 843e7cbae7SIvo van Doorn the kernel tree does. Such modules that use library CRC ITU-T V.41 853e7cbae7SIvo van Doorn functions require M here. 863e7cbae7SIvo van Doorn 871da177e4SLinus Torvaldsconfig CRC32 8846c5801eSDarrick J. Wong tristate "CRC32/CRC32c functions" 891da177e4SLinus Torvalds default y 90906d66dfSAkinobu Mita select BITREVERSE 911da177e4SLinus Torvalds help 921da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 9346c5801eSDarrick J. Wong modules require CRC32/CRC32c functions, but a module built outside 9446c5801eSDarrick J. Wong the kernel tree does. Such modules that use library CRC32/CRC32c 9546c5801eSDarrick J. Wong functions require M here. 961da177e4SLinus Torvalds 973863ef31SBob Pearsonconfig CRC32_SELFTEST 983863ef31SBob Pearson bool "CRC32 perform self test on init" 993863ef31SBob Pearson default n 1003863ef31SBob Pearson depends on CRC32 1013863ef31SBob Pearson help 1023863ef31SBob Pearson This option enables the CRC32 library functions to perform a 1033863ef31SBob Pearson self test on initialization. The self test computes crc32_le 1043863ef31SBob Pearson and crc32_be over byte strings with random alignment and length 1053863ef31SBob Pearson and computes the total elapsed time and number of bytes processed. 1063863ef31SBob Pearson 1075cde7656SDarrick J. Wongchoice 1085cde7656SDarrick J. Wong prompt "CRC32 implementation" 1095cde7656SDarrick J. Wong depends on CRC32 1105cde7656SDarrick J. Wong default CRC32_SLICEBY8 11182edb4baSDarrick J. Wong help 11282edb4baSDarrick J. Wong This option allows a kernel builder to override the default choice 11382edb4baSDarrick J. Wong of CRC32 algorithm. Choose the default ("slice by 8") unless you 11482edb4baSDarrick J. Wong know that you need one of the others. 1155cde7656SDarrick J. Wong 1165cde7656SDarrick J. Wongconfig CRC32_SLICEBY8 1175cde7656SDarrick J. Wong bool "Slice by 8 bytes" 1185cde7656SDarrick J. Wong help 1195cde7656SDarrick J. Wong Calculate checksum 8 bytes at a time with a clever slicing algorithm. 1205cde7656SDarrick J. Wong This is the fastest algorithm, but comes with a 8KiB lookup table. 1215cde7656SDarrick J. Wong Most modern processors have enough cache to hold this table without 1225cde7656SDarrick J. Wong thrashing the cache. 1235cde7656SDarrick J. Wong 1245cde7656SDarrick J. Wong This is the default implementation choice. Choose this one unless 1255cde7656SDarrick J. Wong you have a good reason not to. 1265cde7656SDarrick J. Wong 1275cde7656SDarrick J. Wongconfig CRC32_SLICEBY4 1285cde7656SDarrick J. Wong bool "Slice by 4 bytes" 1295cde7656SDarrick J. Wong help 1305cde7656SDarrick J. Wong Calculate checksum 4 bytes at a time with a clever slicing algorithm. 1315cde7656SDarrick J. Wong This is a bit slower than slice by 8, but has a smaller 4KiB lookup 1325cde7656SDarrick J. Wong table. 1335cde7656SDarrick J. Wong 1345cde7656SDarrick J. Wong Only choose this option if you know what you are doing. 1355cde7656SDarrick J. Wong 1365cde7656SDarrick J. Wongconfig CRC32_SARWATE 1375cde7656SDarrick J. Wong bool "Sarwate's Algorithm (one byte at a time)" 1385cde7656SDarrick J. Wong help 1395cde7656SDarrick J. Wong Calculate checksum a byte at a time using Sarwate's algorithm. This 1405cde7656SDarrick J. Wong is not particularly fast, but has a small 256 byte lookup table. 1415cde7656SDarrick J. Wong 1425cde7656SDarrick J. Wong Only choose this option if you know what you are doing. 1435cde7656SDarrick J. Wong 1445cde7656SDarrick J. Wongconfig CRC32_BIT 1455cde7656SDarrick J. Wong bool "Classic Algorithm (one bit at a time)" 1465cde7656SDarrick J. Wong help 1475cde7656SDarrick J. Wong Calculate checksum one bit at a time. This is VERY slow, but has 1485cde7656SDarrick J. Wong no lookup table. This is provided as a debugging option. 1495cde7656SDarrick J. Wong 1505cde7656SDarrick J. Wong Only choose this option if you are debugging crc32. 1515cde7656SDarrick J. Wong 1525cde7656SDarrick J. Wongendchoice 1535cde7656SDarrick J. Wong 154ad241528SJan Nikitenkoconfig CRC7 155ad241528SJan Nikitenko tristate "CRC7 functions" 156ad241528SJan Nikitenko help 157ad241528SJan Nikitenko This option is provided for the case where no in-kernel-tree 158ad241528SJan Nikitenko modules require CRC7 functions, but a module built outside 159ad241528SJan Nikitenko the kernel tree does. Such modules that use library CRC7 160ad241528SJan Nikitenko functions require M here. 161ad241528SJan Nikitenko 1621da177e4SLinus Torvaldsconfig LIBCRC32C 1631da177e4SLinus Torvalds tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check" 16493027354SHerbert Xu select CRYPTO 16569c35efcSHerbert Xu select CRYPTO_CRC32C 1661da177e4SLinus Torvalds help 1671da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 1681da177e4SLinus Torvalds modules require CRC32c functions, but a module built outside the 1691da177e4SLinus Torvalds kernel tree does. Such modules that use library CRC32c functions 1701da177e4SLinus Torvalds require M here. See Castagnoli93. 1711da177e4SLinus Torvalds Module will be libcrc32c. 1721da177e4SLinus Torvalds 1737150962dSArend van Sprielconfig CRC8 1747150962dSArend van Spriel tristate "CRC8 function" 1757150962dSArend van Spriel help 1767150962dSArend van Spriel This option provides CRC8 function. Drivers may select this 1777150962dSArend van Spriel when they need to do cyclic redundancy check according CRC8 1787150962dSArend van Spriel algorithm. Module will be called crc8. 1797150962dSArend van Spriel 180e65e1fc2SAl Viroconfig AUDIT_GENERIC 181e65e1fc2SAl Viro bool 182e65e1fc2SAl Viro depends on AUDIT && !AUDIT_ARCH 183e65e1fc2SAl Viro default y 184e65e1fc2SAl Viro 185a6a9c0f1SDaniel Borkmannconfig RANDOM32_SELFTEST 186a6a9c0f1SDaniel Borkmann bool "PRNG perform self test on init" 187a6a9c0f1SDaniel Borkmann default n 188a6a9c0f1SDaniel Borkmann help 189a6a9c0f1SDaniel Borkmann This option enables the 32 bit PRNG library functions to perform a 190a6a9c0f1SDaniel Borkmann self test on initialization. 191a6a9c0f1SDaniel Borkmann 1921da177e4SLinus Torvalds# 1931da177e4SLinus Torvalds# compression support is select'ed if needed 1941da177e4SLinus Torvalds# 1951da177e4SLinus Torvaldsconfig ZLIB_INFLATE 1961da177e4SLinus Torvalds tristate 1971da177e4SLinus Torvalds 1981da177e4SLinus Torvaldsconfig ZLIB_DEFLATE 1991da177e4SLinus Torvalds tristate 2001da177e4SLinus Torvalds 20164c70b1cSRichard Purdieconfig LZO_COMPRESS 20264c70b1cSRichard Purdie tristate 20364c70b1cSRichard Purdie 20464c70b1cSRichard Purdieconfig LZO_DECOMPRESS 20564c70b1cSRichard Purdie tristate 20664c70b1cSRichard Purdie 207c72ac7a1SChanho Minconfig LZ4_COMPRESS 208c72ac7a1SChanho Min tristate 209c72ac7a1SChanho Min 210c72ac7a1SChanho Minconfig LZ4HC_COMPRESS 211c72ac7a1SChanho Min tristate 212c72ac7a1SChanho Min 213e76e1fdfSKyungsik Leeconfig LZ4_DECOMPRESS 214e76e1fdfSKyungsik Lee tristate 215e76e1fdfSKyungsik Lee 21624fa0402SLasse Collinsource "lib/xz/Kconfig" 21724fa0402SLasse Collin 2181da177e4SLinus Torvalds# 219c8531ab3SH. Peter Anvin# These all provide a common interface (hence the apparent duplication with 220c8531ab3SH. Peter Anvin# ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.) 221c8531ab3SH. Peter Anvin# 222c8531ab3SH. Peter Anvinconfig DECOMPRESS_GZIP 2237856a16eSH. Peter Anvin select ZLIB_INFLATE 224c8531ab3SH. Peter Anvin tristate 225c8531ab3SH. Peter Anvin 226c8531ab3SH. Peter Anvinconfig DECOMPRESS_BZIP2 227c8531ab3SH. Peter Anvin tristate 228c8531ab3SH. Peter Anvin 229c8531ab3SH. Peter Anvinconfig DECOMPRESS_LZMA 230c8531ab3SH. Peter Anvin tristate 231c8531ab3SH. Peter Anvin 2323ebe1243SLasse Collinconfig DECOMPRESS_XZ 2333ebe1243SLasse Collin select XZ_DEC 2343ebe1243SLasse Collin tristate 2353ebe1243SLasse Collin 236cacb246fSAlbin Tonnerreconfig DECOMPRESS_LZO 237cacb246fSAlbin Tonnerre select LZO_DECOMPRESS 238cacb246fSAlbin Tonnerre tristate 239cacb246fSAlbin Tonnerre 240e76e1fdfSKyungsik Leeconfig DECOMPRESS_LZ4 241e76e1fdfSKyungsik Lee select LZ4_DECOMPRESS 242e76e1fdfSKyungsik Lee tristate 243e76e1fdfSKyungsik Lee 244c8531ab3SH. Peter Anvin# 245f14f75b8SJes Sorensen# Generic allocator support is selected if needed 246f14f75b8SJes Sorensen# 247f14f75b8SJes Sorensenconfig GENERIC_ALLOCATOR 248f14f75b8SJes Sorensen boolean 249f14f75b8SJes Sorensen 250f14f75b8SJes Sorensen# 2511da177e4SLinus Torvalds# reed solomon support is select'ed if needed 2521da177e4SLinus Torvalds# 2531da177e4SLinus Torvaldsconfig REED_SOLOMON 2541da177e4SLinus Torvalds tristate 2551da177e4SLinus Torvalds 2561da177e4SLinus Torvaldsconfig REED_SOLOMON_ENC8 2571da177e4SLinus Torvalds boolean 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvaldsconfig REED_SOLOMON_DEC8 2601da177e4SLinus Torvalds boolean 2611da177e4SLinus Torvalds 2621da177e4SLinus Torvaldsconfig REED_SOLOMON_ENC16 2631da177e4SLinus Torvalds boolean 2641da177e4SLinus Torvalds 2651da177e4SLinus Torvaldsconfig REED_SOLOMON_DEC16 2661da177e4SLinus Torvalds boolean 2671da177e4SLinus Torvalds 268f7704347SDavid S. Miller# 269437aa565SIvan Djelic# BCH support is selected if needed 270437aa565SIvan Djelic# 271437aa565SIvan Djelicconfig BCH 272437aa565SIvan Djelic tristate 273437aa565SIvan Djelic 274437aa565SIvan Djelicconfig BCH_CONST_PARAMS 275437aa565SIvan Djelic boolean 276437aa565SIvan Djelic help 277437aa565SIvan Djelic Drivers may select this option to force specific constant 278437aa565SIvan Djelic values for parameters 'm' (Galois field order) and 't' 279437aa565SIvan Djelic (error correction capability). Those specific values must 280437aa565SIvan Djelic be set by declaring default values for symbols BCH_CONST_M 281437aa565SIvan Djelic and BCH_CONST_T. 282437aa565SIvan Djelic Doing so will enable extra compiler optimizations, 283437aa565SIvan Djelic improving encoding and decoding performance up to 2x for 284437aa565SIvan Djelic usual (m,t) values (typically such that m*t < 200). 285437aa565SIvan Djelic When this option is selected, the BCH library supports 286437aa565SIvan Djelic only a single (m,t) configuration. This is mainly useful 287437aa565SIvan Djelic for NAND flash board drivers requiring known, fixed BCH 288437aa565SIvan Djelic parameters. 289437aa565SIvan Djelic 290437aa565SIvan Djelicconfig BCH_CONST_M 291437aa565SIvan Djelic int 292437aa565SIvan Djelic range 5 15 293437aa565SIvan Djelic help 294437aa565SIvan Djelic Constant value for Galois field order 'm'. If 'k' is the 295437aa565SIvan Djelic number of data bits to protect, 'm' should be chosen such 296437aa565SIvan Djelic that (k + m*t) <= 2**m - 1. 297437aa565SIvan Djelic Drivers should declare a default value for this symbol if 298437aa565SIvan Djelic they select option BCH_CONST_PARAMS. 299437aa565SIvan Djelic 300437aa565SIvan Djelicconfig BCH_CONST_T 301437aa565SIvan Djelic int 302437aa565SIvan Djelic help 303437aa565SIvan Djelic Constant value for error correction capability in bits 't'. 304437aa565SIvan Djelic Drivers should declare a default value for this symbol if 305437aa565SIvan Djelic they select option BCH_CONST_PARAMS. 306437aa565SIvan Djelic 307437aa565SIvan Djelic# 308f7704347SDavid S. Miller# Textsearch support is select'ed if needed 309f7704347SDavid S. Miller# 3102de4ff7bSThomas Grafconfig TEXTSEARCH 311f7704347SDavid S. Miller boolean 3121da177e4SLinus Torvalds 313df3fb93aSThomas Grafconfig TEXTSEARCH_KMP 314f7704347SDavid S. Miller tristate 315df3fb93aSThomas Graf 3168082e4edSPablo Neira Ayusoconfig TEXTSEARCH_BM 31729cb9f9cSDavid S. Miller tristate 3188082e4edSPablo Neira Ayuso 3196408f79cSThomas Grafconfig TEXTSEARCH_FSM 320f7704347SDavid S. Miller tristate 3216408f79cSThomas Graf 3225db53f3eSJoern Engelconfig BTREE 3235db53f3eSJoern Engel boolean 3245db53f3eSJoern Engel 3253cb98950SDavid Howellsconfig ASSOCIATIVE_ARRAY 3263cb98950SDavid Howells bool 3273cb98950SDavid Howells help 3283cb98950SDavid Howells Generic associative array. Can be searched and iterated over whilst 3293cb98950SDavid Howells it is being modified. It is also reasonably quick to search and 3303cb98950SDavid Howells modify. The algorithms are non-recursive, and the trees are highly 3313cb98950SDavid Howells capacious. 3323cb98950SDavid Howells 3333cb98950SDavid Howells See: 3343cb98950SDavid Howells 3353cb98950SDavid Howells Documentation/assoc_array.txt 3363cb98950SDavid Howells 3373cb98950SDavid Howells for more information. 3383cb98950SDavid Howells 3395ea81769SAl Viroconfig HAS_IOMEM 340ee36c2bfSAl Viro boolean 3415ea81769SAl Viro depends on !NO_IOMEM 342087fafd1SRichard Weinberger select GENERIC_IO 3435ea81769SAl Viro default y 3445ea81769SAl Viro 345*ce816fa8SUwe Kleine-Königconfig HAS_IOPORT_MAP 3465ea81769SAl Viro boolean 347*ce816fa8SUwe Kleine-König depends on HAS_IOMEM && !NO_IOPORT_MAP 348ee36c2bfSAl Viro default y 349ee36c2bfSAl Viro 350411f0f3eSHeiko Carstensconfig HAS_DMA 351411f0f3eSHeiko Carstens boolean 352411f0f3eSHeiko Carstens depends on !NO_DMA 353411f0f3eSHeiko Carstens default y 354411f0f3eSHeiko Carstens 355928923c7SGeert Uytterhoevenconfig CHECK_SIGNATURE 356928923c7SGeert Uytterhoeven bool 357928923c7SGeert Uytterhoeven 358aab46da0SRusty Russellconfig CPUMASK_OFFSTACK 359aab46da0SRusty Russell bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS 360aab46da0SRusty Russell help 361aab46da0SRusty Russell Use dynamic allocation for cpumask_var_t, instead of putting 362aab46da0SRusty Russell them on the stack. This is a bit more expensive, but avoids 363aab46da0SRusty Russell stack overflow. 364aab46da0SRusty Russell 3658c384cdeSRusty Russellconfig DISABLE_OBSOLETE_CPUMASK_FUNCTIONS 3668c384cdeSRusty Russell bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS 367525c1f92SKees Cook depends on BROKEN 3688c384cdeSRusty Russell 369c39649c3SBen Hutchingsconfig CPU_RMAP 370c39649c3SBen Hutchings bool 371c39649c3SBen Hutchings depends on SMP 372c39649c3SBen Hutchings 37375957ba3STom Herbertconfig DQL 37475957ba3STom Herbert bool 37575957ba3STom Herbert 376e9cc8bddSGeert Uytterhoeven# 377e9cc8bddSGeert Uytterhoeven# Netlink attribute parsing support is select'ed if needed 378e9cc8bddSGeert Uytterhoeven# 379e9cc8bddSGeert Uytterhoevenconfig NLATTR 380e9cc8bddSGeert Uytterhoeven bool 381e9cc8bddSGeert Uytterhoeven 38209d4e0edSPaul Mackerras# 38309d4e0edSPaul Mackerras# Generic 64-bit atomic support is selected if needed 38409d4e0edSPaul Mackerras# 38509d4e0edSPaul Mackerrasconfig GENERIC_ATOMIC64 38609d4e0edSPaul Mackerras bool 38709d4e0edSPaul Mackerras 3887463449bSCatalin Marinasconfig ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 3897463449bSCatalin Marinas def_bool y if GENERIC_ATOMIC64 3907463449bSCatalin Marinas 391b411b363SPhilipp Reisnerconfig LRU_CACHE 392b411b363SPhilipp Reisner tristate 393b411b363SPhilipp Reisner 394c5485a7eSBruno Randolfconfig AVERAGE 395a7a9a24dSMichael Buesch bool "Averaging functions" 396a7a9a24dSMichael Buesch help 397a7a9a24dSMichael Buesch This option is provided for the case where no in-kernel-tree 398a7a9a24dSMichael Buesch modules require averaging functions, but a module built outside 399a7a9a24dSMichael Buesch the kernel tree does. Such modules that use library averaging 400a7a9a24dSMichael Buesch functions require Y here. 401a7a9a24dSMichael Buesch 402a7a9a24dSMichael Buesch If unsure, say N. 403c5485a7eSBruno Randolf 404c6df4b17SDavid Millerconfig CLZ_TAB 405c6df4b17SDavid Miller bool 406c6df4b17SDavid Miller 40710f8113eSArend van Sprielconfig CORDIC 408d89ce936SMichael Witten tristate "CORDIC algorithm" 40910f8113eSArend van Spriel help 410435a95c5SMichael Witten This option provides an implementation of the CORDIC algorithm; 411435a95c5SMichael Witten calculations are in fixed point. Module will be called cordic. 41210f8113eSArend van Spriel 4139c1c21a0SAneesh Vconfig DDR 4149c1c21a0SAneesh V bool "JEDEC DDR data" 4159c1c21a0SAneesh V help 4169c1c21a0SAneesh V Data from JEDEC specs for DDR SDRAM memories, 4179c1c21a0SAneesh V particularly the AC timing parameters and addressing 4189c1c21a0SAneesh V information. This data is useful for drivers handling 4199c1c21a0SAneesh V DDR SDRAM controllers. 4209c1c21a0SAneesh V 421d9c46b18SDmitry Kasatkinconfig MPILIB 4222e5f094bSDmitry Kasatkin tristate 423c6df4b17SDavid Miller select CLZ_TAB 424d9c46b18SDmitry Kasatkin help 425d9c46b18SDmitry Kasatkin Multiprecision maths library from GnuPG. 426d9c46b18SDmitry Kasatkin It is used to implement RSA digital signature verification, 427d9c46b18SDmitry Kasatkin which is used by IMA/EVM digital signature extension. 428d9c46b18SDmitry Kasatkin 4295e8898e9SDmitry Kasatkinconfig SIGNATURE 4302e5f094bSDmitry Kasatkin tristate 431be440ec7SDmitry Kasatkin depends on KEYS && CRYPTO 432be440ec7SDmitry Kasatkin select CRYPTO_SHA1 433051dbb91SDmitry Kasatkin select MPILIB 434051dbb91SDmitry Kasatkin help 435051dbb91SDmitry Kasatkin Digital signature verification. Currently only RSA is supported. 436051dbb91SDmitry Kasatkin Implementation is done using GnuPG MPI library 437051dbb91SDmitry Kasatkin 438ab253839SDavid Daney# 439ab253839SDavid Daney# libfdt files, only selected if needed. 440ab253839SDavid Daney# 441ab253839SDavid Daneyconfig LIBFDT 442ab253839SDavid Daney bool 443ab253839SDavid Daney 444a77ad6eaSDavid Howellsconfig OID_REGISTRY 445a77ad6eaSDavid Howells tristate 446a77ad6eaSDavid Howells help 447a77ad6eaSDavid Howells Enable fast lookup object identifier registry. 448a77ad6eaSDavid Howells 4490635eb8aSMatthew Garrettconfig UCS2_STRING 4500635eb8aSMatthew Garrett tristate 4510635eb8aSMatthew Garrett 452ee89bd6bSGeert Uytterhoevensource "lib/fonts/Kconfig" 453ee89bd6bSGeert Uytterhoeven 4542de4ff7bSThomas Grafendmenu 455