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 54bc08b449SLinus Torvaldsconfig CMPXCHG_LOCKREF 55bc08b449SLinus Torvalds def_bool y if ARCH_USE_CMPXCHG_LOCKREF 56bc08b449SLinus Torvalds depends on SMP 57bc08b449SLinus Torvalds depends on !GENERIC_LOCKBREAK 58bc08b449SLinus Torvalds depends on !DEBUG_SPINLOCK 59bc08b449SLinus Torvalds depends on !DEBUG_LOCK_ALLOC 60bc08b449SLinus Torvalds 611da177e4SLinus Torvaldsconfig CRC_CCITT 621da177e4SLinus Torvalds tristate "CRC-CCITT functions" 631da177e4SLinus Torvalds help 641da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 651da177e4SLinus Torvalds modules require CRC-CCITT functions, but a module built outside 661da177e4SLinus Torvalds the kernel tree does. Such modules that use library CRC-CCITT 671da177e4SLinus Torvalds functions require M here. 681da177e4SLinus Torvalds 697657ec1fSEvgeniy Polyakovconfig CRC16 707657ec1fSEvgeniy Polyakov tristate "CRC16 functions" 717657ec1fSEvgeniy Polyakov help 727657ec1fSEvgeniy Polyakov This option is provided for the case where no in-kernel-tree 737657ec1fSEvgeniy Polyakov modules require CRC16 functions, but a module built outside 747657ec1fSEvgeniy Polyakov the kernel tree does. Such modules that use library CRC16 757657ec1fSEvgeniy Polyakov functions require M here. 767657ec1fSEvgeniy Polyakov 77f11f594eSMartin K. Petersenconfig CRC_T10DIF 78f11f594eSMartin K. Petersen tristate "CRC calculation for the T10 Data Integrity Field" 7968411521SHerbert Xu select CRYPTO 8068411521SHerbert Xu select CRYPTO_CRCT10DIF 81f11f594eSMartin K. Petersen help 82f11f594eSMartin K. Petersen This option is only needed if a module that's not in the 83f11f594eSMartin K. Petersen kernel tree needs to calculate CRC checks for use with the 84f11f594eSMartin K. Petersen SCSI data integrity subsystem. 85f11f594eSMartin K. Petersen 863e7cbae7SIvo van Doornconfig CRC_ITU_T 873e7cbae7SIvo van Doorn tristate "CRC ITU-T V.41 functions" 883e7cbae7SIvo van Doorn help 893e7cbae7SIvo van Doorn This option is provided for the case where no in-kernel-tree 903e7cbae7SIvo van Doorn modules require CRC ITU-T V.41 functions, but a module built outside 913e7cbae7SIvo van Doorn the kernel tree does. Such modules that use library CRC ITU-T V.41 923e7cbae7SIvo van Doorn functions require M here. 933e7cbae7SIvo van Doorn 941da177e4SLinus Torvaldsconfig CRC32 9546c5801eSDarrick J. Wong tristate "CRC32/CRC32c functions" 961da177e4SLinus Torvalds default y 97906d66dfSAkinobu Mita select BITREVERSE 981da177e4SLinus Torvalds help 991da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 10046c5801eSDarrick J. Wong modules require CRC32/CRC32c functions, but a module built outside 10146c5801eSDarrick J. Wong the kernel tree does. Such modules that use library CRC32/CRC32c 10246c5801eSDarrick J. Wong functions require M here. 1031da177e4SLinus Torvalds 1043863ef31SBob Pearsonconfig CRC32_SELFTEST 1053863ef31SBob Pearson bool "CRC32 perform self test on init" 1063863ef31SBob Pearson default n 1073863ef31SBob Pearson depends on CRC32 1083863ef31SBob Pearson help 1093863ef31SBob Pearson This option enables the CRC32 library functions to perform a 1103863ef31SBob Pearson self test on initialization. The self test computes crc32_le 1113863ef31SBob Pearson and crc32_be over byte strings with random alignment and length 1123863ef31SBob Pearson and computes the total elapsed time and number of bytes processed. 1133863ef31SBob Pearson 1145cde7656SDarrick J. Wongchoice 1155cde7656SDarrick J. Wong prompt "CRC32 implementation" 1165cde7656SDarrick J. Wong depends on CRC32 1175cde7656SDarrick J. Wong default CRC32_SLICEBY8 11882edb4baSDarrick J. Wong help 11982edb4baSDarrick J. Wong This option allows a kernel builder to override the default choice 12082edb4baSDarrick J. Wong of CRC32 algorithm. Choose the default ("slice by 8") unless you 12182edb4baSDarrick J. Wong know that you need one of the others. 1225cde7656SDarrick J. Wong 1235cde7656SDarrick J. Wongconfig CRC32_SLICEBY8 1245cde7656SDarrick J. Wong bool "Slice by 8 bytes" 1255cde7656SDarrick J. Wong help 1265cde7656SDarrick J. Wong Calculate checksum 8 bytes at a time with a clever slicing algorithm. 1275cde7656SDarrick J. Wong This is the fastest algorithm, but comes with a 8KiB lookup table. 1285cde7656SDarrick J. Wong Most modern processors have enough cache to hold this table without 1295cde7656SDarrick J. Wong thrashing the cache. 1305cde7656SDarrick J. Wong 1315cde7656SDarrick J. Wong This is the default implementation choice. Choose this one unless 1325cde7656SDarrick J. Wong you have a good reason not to. 1335cde7656SDarrick J. Wong 1345cde7656SDarrick J. Wongconfig CRC32_SLICEBY4 1355cde7656SDarrick J. Wong bool "Slice by 4 bytes" 1365cde7656SDarrick J. Wong help 1375cde7656SDarrick J. Wong Calculate checksum 4 bytes at a time with a clever slicing algorithm. 1385cde7656SDarrick J. Wong This is a bit slower than slice by 8, but has a smaller 4KiB lookup 1395cde7656SDarrick J. Wong table. 1405cde7656SDarrick J. Wong 1415cde7656SDarrick J. Wong Only choose this option if you know what you are doing. 1425cde7656SDarrick J. Wong 1435cde7656SDarrick J. Wongconfig CRC32_SARWATE 1445cde7656SDarrick J. Wong bool "Sarwate's Algorithm (one byte at a time)" 1455cde7656SDarrick J. Wong help 1465cde7656SDarrick J. Wong Calculate checksum a byte at a time using Sarwate's algorithm. This 1475cde7656SDarrick J. Wong is not particularly fast, but has a small 256 byte lookup table. 1485cde7656SDarrick J. Wong 1495cde7656SDarrick J. Wong Only choose this option if you know what you are doing. 1505cde7656SDarrick J. Wong 1515cde7656SDarrick J. Wongconfig CRC32_BIT 1525cde7656SDarrick J. Wong bool "Classic Algorithm (one bit at a time)" 1535cde7656SDarrick J. Wong help 1545cde7656SDarrick J. Wong Calculate checksum one bit at a time. This is VERY slow, but has 1555cde7656SDarrick J. Wong no lookup table. This is provided as a debugging option. 1565cde7656SDarrick J. Wong 1575cde7656SDarrick J. Wong Only choose this option if you are debugging crc32. 1585cde7656SDarrick J. Wong 1595cde7656SDarrick J. Wongendchoice 1605cde7656SDarrick J. Wong 161ad241528SJan Nikitenkoconfig CRC7 162ad241528SJan Nikitenko tristate "CRC7 functions" 163ad241528SJan Nikitenko help 164ad241528SJan Nikitenko This option is provided for the case where no in-kernel-tree 165ad241528SJan Nikitenko modules require CRC7 functions, but a module built outside 166ad241528SJan Nikitenko the kernel tree does. Such modules that use library CRC7 167ad241528SJan Nikitenko functions require M here. 168ad241528SJan Nikitenko 1691da177e4SLinus Torvaldsconfig LIBCRC32C 1701da177e4SLinus Torvalds tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check" 17193027354SHerbert Xu select CRYPTO 17269c35efcSHerbert Xu select CRYPTO_CRC32C 1731da177e4SLinus Torvalds help 1741da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 1751da177e4SLinus Torvalds modules require CRC32c functions, but a module built outside the 1761da177e4SLinus Torvalds kernel tree does. Such modules that use library CRC32c functions 1771da177e4SLinus Torvalds require M here. See Castagnoli93. 1781da177e4SLinus Torvalds Module will be libcrc32c. 1791da177e4SLinus Torvalds 1807150962dSArend van Sprielconfig CRC8 1817150962dSArend van Spriel tristate "CRC8 function" 1827150962dSArend van Spriel help 1837150962dSArend van Spriel This option provides CRC8 function. Drivers may select this 1847150962dSArend van Spriel when they need to do cyclic redundancy check according CRC8 1857150962dSArend van Spriel algorithm. Module will be called crc8. 1867150962dSArend van Spriel 187e65e1fc2SAl Viroconfig AUDIT_GENERIC 188e65e1fc2SAl Viro bool 189e65e1fc2SAl Viro depends on AUDIT && !AUDIT_ARCH 190e65e1fc2SAl Viro default y 191e65e1fc2SAl Viro 192*a6a9c0f1SDaniel Borkmannconfig RANDOM32_SELFTEST 193*a6a9c0f1SDaniel Borkmann bool "PRNG perform self test on init" 194*a6a9c0f1SDaniel Borkmann default n 195*a6a9c0f1SDaniel Borkmann help 196*a6a9c0f1SDaniel Borkmann This option enables the 32 bit PRNG library functions to perform a 197*a6a9c0f1SDaniel Borkmann self test on initialization. 198*a6a9c0f1SDaniel Borkmann 1991da177e4SLinus Torvalds# 2001da177e4SLinus Torvalds# compression support is select'ed if needed 2011da177e4SLinus Torvalds# 2021da177e4SLinus Torvaldsconfig ZLIB_INFLATE 2031da177e4SLinus Torvalds tristate 2041da177e4SLinus Torvalds 2051da177e4SLinus Torvaldsconfig ZLIB_DEFLATE 2061da177e4SLinus Torvalds tristate 2071da177e4SLinus Torvalds 20864c70b1cSRichard Purdieconfig LZO_COMPRESS 20964c70b1cSRichard Purdie tristate 21064c70b1cSRichard Purdie 21164c70b1cSRichard Purdieconfig LZO_DECOMPRESS 21264c70b1cSRichard Purdie tristate 21364c70b1cSRichard Purdie 214c72ac7a1SChanho Minconfig LZ4_COMPRESS 215c72ac7a1SChanho Min tristate 216c72ac7a1SChanho Min 217c72ac7a1SChanho Minconfig LZ4HC_COMPRESS 218c72ac7a1SChanho Min tristate 219c72ac7a1SChanho Min 220e76e1fdfSKyungsik Leeconfig LZ4_DECOMPRESS 221e76e1fdfSKyungsik Lee tristate 222e76e1fdfSKyungsik Lee 22324fa0402SLasse Collinsource "lib/xz/Kconfig" 22424fa0402SLasse Collin 2251da177e4SLinus Torvalds# 226c8531ab3SH. Peter Anvin# These all provide a common interface (hence the apparent duplication with 227c8531ab3SH. Peter Anvin# ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.) 228c8531ab3SH. Peter Anvin# 229c8531ab3SH. Peter Anvinconfig DECOMPRESS_GZIP 2307856a16eSH. Peter Anvin select ZLIB_INFLATE 231c8531ab3SH. Peter Anvin tristate 232c8531ab3SH. Peter Anvin 233c8531ab3SH. Peter Anvinconfig DECOMPRESS_BZIP2 234c8531ab3SH. Peter Anvin tristate 235c8531ab3SH. Peter Anvin 236c8531ab3SH. Peter Anvinconfig DECOMPRESS_LZMA 237c8531ab3SH. Peter Anvin tristate 238c8531ab3SH. Peter Anvin 2393ebe1243SLasse Collinconfig DECOMPRESS_XZ 2403ebe1243SLasse Collin select XZ_DEC 2413ebe1243SLasse Collin tristate 2423ebe1243SLasse Collin 243cacb246fSAlbin Tonnerreconfig DECOMPRESS_LZO 244cacb246fSAlbin Tonnerre select LZO_DECOMPRESS 245cacb246fSAlbin Tonnerre tristate 246cacb246fSAlbin Tonnerre 247e76e1fdfSKyungsik Leeconfig DECOMPRESS_LZ4 248e76e1fdfSKyungsik Lee select LZ4_DECOMPRESS 249e76e1fdfSKyungsik Lee tristate 250e76e1fdfSKyungsik Lee 251c8531ab3SH. Peter Anvin# 252f14f75b8SJes Sorensen# Generic allocator support is selected if needed 253f14f75b8SJes Sorensen# 254f14f75b8SJes Sorensenconfig GENERIC_ALLOCATOR 255f14f75b8SJes Sorensen boolean 256f14f75b8SJes Sorensen 257f14f75b8SJes Sorensen# 2581da177e4SLinus Torvalds# reed solomon support is select'ed if needed 2591da177e4SLinus Torvalds# 2601da177e4SLinus Torvaldsconfig REED_SOLOMON 2611da177e4SLinus Torvalds tristate 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvaldsconfig REED_SOLOMON_ENC8 2641da177e4SLinus Torvalds boolean 2651da177e4SLinus Torvalds 2661da177e4SLinus Torvaldsconfig REED_SOLOMON_DEC8 2671da177e4SLinus Torvalds boolean 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvaldsconfig REED_SOLOMON_ENC16 2701da177e4SLinus Torvalds boolean 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvaldsconfig REED_SOLOMON_DEC16 2731da177e4SLinus Torvalds boolean 2741da177e4SLinus Torvalds 275f7704347SDavid S. Miller# 276437aa565SIvan Djelic# BCH support is selected if needed 277437aa565SIvan Djelic# 278437aa565SIvan Djelicconfig BCH 279437aa565SIvan Djelic tristate 280437aa565SIvan Djelic 281437aa565SIvan Djelicconfig BCH_CONST_PARAMS 282437aa565SIvan Djelic boolean 283437aa565SIvan Djelic help 284437aa565SIvan Djelic Drivers may select this option to force specific constant 285437aa565SIvan Djelic values for parameters 'm' (Galois field order) and 't' 286437aa565SIvan Djelic (error correction capability). Those specific values must 287437aa565SIvan Djelic be set by declaring default values for symbols BCH_CONST_M 288437aa565SIvan Djelic and BCH_CONST_T. 289437aa565SIvan Djelic Doing so will enable extra compiler optimizations, 290437aa565SIvan Djelic improving encoding and decoding performance up to 2x for 291437aa565SIvan Djelic usual (m,t) values (typically such that m*t < 200). 292437aa565SIvan Djelic When this option is selected, the BCH library supports 293437aa565SIvan Djelic only a single (m,t) configuration. This is mainly useful 294437aa565SIvan Djelic for NAND flash board drivers requiring known, fixed BCH 295437aa565SIvan Djelic parameters. 296437aa565SIvan Djelic 297437aa565SIvan Djelicconfig BCH_CONST_M 298437aa565SIvan Djelic int 299437aa565SIvan Djelic range 5 15 300437aa565SIvan Djelic help 301437aa565SIvan Djelic Constant value for Galois field order 'm'. If 'k' is the 302437aa565SIvan Djelic number of data bits to protect, 'm' should be chosen such 303437aa565SIvan Djelic that (k + m*t) <= 2**m - 1. 304437aa565SIvan Djelic Drivers should declare a default value for this symbol if 305437aa565SIvan Djelic they select option BCH_CONST_PARAMS. 306437aa565SIvan Djelic 307437aa565SIvan Djelicconfig BCH_CONST_T 308437aa565SIvan Djelic int 309437aa565SIvan Djelic help 310437aa565SIvan Djelic Constant value for error correction capability in bits 't'. 311437aa565SIvan Djelic Drivers should declare a default value for this symbol if 312437aa565SIvan Djelic they select option BCH_CONST_PARAMS. 313437aa565SIvan Djelic 314437aa565SIvan Djelic# 315f7704347SDavid S. Miller# Textsearch support is select'ed if needed 316f7704347SDavid S. Miller# 3172de4ff7bSThomas Grafconfig TEXTSEARCH 318f7704347SDavid S. Miller boolean 3191da177e4SLinus Torvalds 320df3fb93aSThomas Grafconfig TEXTSEARCH_KMP 321f7704347SDavid S. Miller tristate 322df3fb93aSThomas Graf 3238082e4edSPablo Neira Ayusoconfig TEXTSEARCH_BM 32429cb9f9cSDavid S. Miller tristate 3258082e4edSPablo Neira Ayuso 3266408f79cSThomas Grafconfig TEXTSEARCH_FSM 327f7704347SDavid S. Miller tristate 3286408f79cSThomas Graf 3295db53f3eSJoern Engelconfig BTREE 3305db53f3eSJoern Engel boolean 3315db53f3eSJoern Engel 3325ea81769SAl Viroconfig HAS_IOMEM 333ee36c2bfSAl Viro boolean 3345ea81769SAl Viro depends on !NO_IOMEM 335087fafd1SRichard Weinberger select GENERIC_IO 3365ea81769SAl Viro default y 3375ea81769SAl Viro 3385ea81769SAl Viroconfig HAS_IOPORT 3395ea81769SAl Viro boolean 3405ea81769SAl Viro depends on HAS_IOMEM && !NO_IOPORT 341ee36c2bfSAl Viro default y 342ee36c2bfSAl Viro 343411f0f3eSHeiko Carstensconfig HAS_DMA 344411f0f3eSHeiko Carstens boolean 345411f0f3eSHeiko Carstens depends on !NO_DMA 346411f0f3eSHeiko Carstens default y 347411f0f3eSHeiko Carstens 348928923c7SGeert Uytterhoevenconfig CHECK_SIGNATURE 349928923c7SGeert Uytterhoeven bool 350928923c7SGeert Uytterhoeven 351aab46da0SRusty Russellconfig CPUMASK_OFFSTACK 352aab46da0SRusty Russell bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS 353aab46da0SRusty Russell help 354aab46da0SRusty Russell Use dynamic allocation for cpumask_var_t, instead of putting 355aab46da0SRusty Russell them on the stack. This is a bit more expensive, but avoids 356aab46da0SRusty Russell stack overflow. 357aab46da0SRusty Russell 3588c384cdeSRusty Russellconfig DISABLE_OBSOLETE_CPUMASK_FUNCTIONS 3598c384cdeSRusty Russell bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS 360525c1f92SKees Cook depends on BROKEN 3618c384cdeSRusty Russell 362c39649c3SBen Hutchingsconfig CPU_RMAP 363c39649c3SBen Hutchings bool 364c39649c3SBen Hutchings depends on SMP 365c39649c3SBen Hutchings 36675957ba3STom Herbertconfig DQL 36775957ba3STom Herbert bool 36875957ba3STom Herbert 369e9cc8bddSGeert Uytterhoeven# 370e9cc8bddSGeert Uytterhoeven# Netlink attribute parsing support is select'ed if needed 371e9cc8bddSGeert Uytterhoeven# 372e9cc8bddSGeert Uytterhoevenconfig NLATTR 373e9cc8bddSGeert Uytterhoeven bool 374e9cc8bddSGeert Uytterhoeven 37509d4e0edSPaul Mackerras# 37609d4e0edSPaul Mackerras# Generic 64-bit atomic support is selected if needed 37709d4e0edSPaul Mackerras# 37809d4e0edSPaul Mackerrasconfig GENERIC_ATOMIC64 37909d4e0edSPaul Mackerras bool 38009d4e0edSPaul Mackerras 3817463449bSCatalin Marinasconfig ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 3827463449bSCatalin Marinas def_bool y if GENERIC_ATOMIC64 3837463449bSCatalin Marinas 384b411b363SPhilipp Reisnerconfig LRU_CACHE 385b411b363SPhilipp Reisner tristate 386b411b363SPhilipp Reisner 387c5485a7eSBruno Randolfconfig AVERAGE 388a7a9a24dSMichael Buesch bool "Averaging functions" 389a7a9a24dSMichael Buesch help 390a7a9a24dSMichael Buesch This option is provided for the case where no in-kernel-tree 391a7a9a24dSMichael Buesch modules require averaging functions, but a module built outside 392a7a9a24dSMichael Buesch the kernel tree does. Such modules that use library averaging 393a7a9a24dSMichael Buesch functions require Y here. 394a7a9a24dSMichael Buesch 395a7a9a24dSMichael Buesch If unsure, say N. 396c5485a7eSBruno Randolf 397c6df4b17SDavid Millerconfig CLZ_TAB 398c6df4b17SDavid Miller bool 399c6df4b17SDavid Miller 40010f8113eSArend van Sprielconfig CORDIC 401d89ce936SMichael Witten tristate "CORDIC algorithm" 40210f8113eSArend van Spriel help 403435a95c5SMichael Witten This option provides an implementation of the CORDIC algorithm; 404435a95c5SMichael Witten calculations are in fixed point. Module will be called cordic. 40510f8113eSArend van Spriel 4069c1c21a0SAneesh Vconfig DDR 4079c1c21a0SAneesh V bool "JEDEC DDR data" 4089c1c21a0SAneesh V help 4099c1c21a0SAneesh V Data from JEDEC specs for DDR SDRAM memories, 4109c1c21a0SAneesh V particularly the AC timing parameters and addressing 4119c1c21a0SAneesh V information. This data is useful for drivers handling 4129c1c21a0SAneesh V DDR SDRAM controllers. 4139c1c21a0SAneesh V 414d9c46b18SDmitry Kasatkinconfig MPILIB 4152e5f094bSDmitry Kasatkin tristate 416c6df4b17SDavid Miller select CLZ_TAB 417d9c46b18SDmitry Kasatkin help 418d9c46b18SDmitry Kasatkin Multiprecision maths library from GnuPG. 419d9c46b18SDmitry Kasatkin It is used to implement RSA digital signature verification, 420d9c46b18SDmitry Kasatkin which is used by IMA/EVM digital signature extension. 421d9c46b18SDmitry Kasatkin 4225e8898e9SDmitry Kasatkinconfig SIGNATURE 4232e5f094bSDmitry Kasatkin tristate 424be440ec7SDmitry Kasatkin depends on KEYS && CRYPTO 425be440ec7SDmitry Kasatkin select CRYPTO_SHA1 426051dbb91SDmitry Kasatkin select MPILIB 427051dbb91SDmitry Kasatkin help 428051dbb91SDmitry Kasatkin Digital signature verification. Currently only RSA is supported. 429051dbb91SDmitry Kasatkin Implementation is done using GnuPG MPI library 430051dbb91SDmitry Kasatkin 431ab253839SDavid Daney# 432ab253839SDavid Daney# libfdt files, only selected if needed. 433ab253839SDavid Daney# 434ab253839SDavid Daneyconfig LIBFDT 435ab253839SDavid Daney bool 436ab253839SDavid Daney 437a77ad6eaSDavid Howellsconfig OID_REGISTRY 438a77ad6eaSDavid Howells tristate 439a77ad6eaSDavid Howells help 440a77ad6eaSDavid Howells Enable fast lookup object identifier registry. 441a77ad6eaSDavid Howells 4420635eb8aSMatthew Garrettconfig UCS2_STRING 4430635eb8aSMatthew Garrett tristate 4440635eb8aSMatthew Garrett 445ee89bd6bSGeert Uytterhoevensource "lib/fonts/Kconfig" 446ee89bd6bSGeert Uytterhoeven 4472de4ff7bSThomas Grafendmenu 448