diff options
Diffstat (limited to 'lib/Kconfig')
| -rw-r--r-- | lib/Kconfig | 356 |
1 files changed, 185 insertions, 171 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index a9e56539bd11..2923924bea78 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Library configuration # @@ -18,38 +19,69 @@ config RAID6_PQ_BENCHMARK Benchmark all available RAID6 PQ functions on init and choose the fastest one. +config LINEAR_RANGES + tristate + +config PACKING + bool "Generic bitfield packing and unpacking" + select BITREVERSE + default n + help + This option provides the packing() helper function, which permits + converting bitfields between a CPU-usable representation and a + memory representation that can have any combination of these quirks: + - Is little endian (bytes are reversed within a 32-bit group) + - The least-significant 32-bit word comes first (within a 64-bit + group) + - The most significant bit of a byte is at its right (bit 0 of a + register description is numerically 2^7). + Drivers may use these helpers to match the bit indices as described + in the data sheets of the peripherals they are in control of. + + When in doubt, say N. + +config PACKING_KUNIT_TEST + tristate "KUnit tests for packing library" if !KUNIT_ALL_TESTS + depends on PACKING && KUNIT + default KUNIT_ALL_TESTS + help + This builds KUnit tests for the packing library. + + For more information on KUnit and unit tests in general, + please refer to the KUnit documentation in Documentation/dev-tools/kunit/. + + When in doubt, say N. + config BITREVERSE tristate config HAVE_ARCH_BITREVERSE bool default n - depends on BITREVERSE help This option enables the use of hardware bit-reversal instructions on architectures which support such operations. -config RATIONAL +config ARCH_HAS_STRNCPY_FROM_USER bool -config GENERIC_STRNCPY_FROM_USER +config ARCH_HAS_STRNLEN_USER bool +config GENERIC_STRNCPY_FROM_USER + def_bool !ARCH_HAS_STRNCPY_FROM_USER + config GENERIC_STRNLEN_USER - bool + def_bool !ARCH_HAS_STRNLEN_USER config GENERIC_NET_UTILS bool -config GENERIC_FIND_FIRST_BIT - bool +source "lib/math/Kconfig" config NO_GENERIC_PCI_IOPORT_MAP bool -config GENERIC_PCI_IOMAP - bool - config GENERIC_IOMAP bool select GENERIC_PCI_IOMAP @@ -63,9 +95,13 @@ config ARCH_USE_CMPXCHG_LOCKREF config ARCH_HAS_FAST_MULTIPLIER bool +config ARCH_USE_SYM_ANNOTATIONS + bool + config INDIRECT_PIO bool "Access I/O in non-MMIO mode" depends on ARM64 + depends on HAS_IOPORT help On some platforms where no separate I/O space exists, there are I/O hosts which can not be accessed in MMIO mode. Using the logical PIO @@ -79,146 +115,29 @@ config INDIRECT_PIO When in doubt, say N. -config CRC_CCITT - tristate "CRC-CCITT functions" - help - This option is provided for the case where no in-kernel-tree - modules require CRC-CCITT functions, but a module built outside - the kernel tree does. Such modules that use library CRC-CCITT - functions require M here. - -config CRC16 - tristate "CRC16 functions" - help - This option is provided for the case where no in-kernel-tree - modules require CRC16 functions, but a module built outside - the kernel tree does. Such modules that use library CRC16 - functions require M here. - -config CRC_T10DIF - tristate "CRC calculation for the T10 Data Integrity Field" - select CRYPTO - select CRYPTO_CRCT10DIF - help - This option is only needed if a module that's not in the - kernel tree needs to calculate CRC checks for use with the - SCSI data integrity subsystem. - -config CRC_ITU_T - tristate "CRC ITU-T V.41 functions" - help - This option is provided for the case where no in-kernel-tree - modules require CRC ITU-T V.41 functions, but a module built outside - the kernel tree does. Such modules that use library CRC ITU-T V.41 - functions require M here. - -config CRC32 - tristate "CRC32/CRC32c functions" - default y - select BITREVERSE - help - This option is provided for the case where no in-kernel-tree - modules require CRC32/CRC32c functions, but a module built outside - the kernel tree does. Such modules that use library CRC32/CRC32c - functions require M here. - -config CRC32_SELFTEST - tristate "CRC32 perform self test on init" - depends on CRC32 - help - This option enables the CRC32 library functions to perform a - self test on initialization. The self test computes crc32_le - and crc32_be over byte strings with random alignment and length - and computes the total elapsed time and number of bytes processed. - -choice - prompt "CRC32 implementation" - depends on CRC32 - default CRC32_SLICEBY8 - help - This option allows a kernel builder to override the default choice - of CRC32 algorithm. Choose the default ("slice by 8") unless you - know that you need one of the others. - -config CRC32_SLICEBY8 - bool "Slice by 8 bytes" - help - Calculate checksum 8 bytes at a time with a clever slicing algorithm. - This is the fastest algorithm, but comes with a 8KiB lookup table. - Most modern processors have enough cache to hold this table without - thrashing the cache. - - This is the default implementation choice. Choose this one unless - you have a good reason not to. - -config CRC32_SLICEBY4 - bool "Slice by 4 bytes" - help - Calculate checksum 4 bytes at a time with a clever slicing algorithm. - This is a bit slower than slice by 8, but has a smaller 4KiB lookup - table. - - Only choose this option if you know what you are doing. - -config CRC32_SARWATE - bool "Sarwate's Algorithm (one byte at a time)" - help - Calculate checksum a byte at a time using Sarwate's algorithm. This - is not particularly fast, but has a small 256 byte lookup table. - - Only choose this option if you know what you are doing. - -config CRC32_BIT - bool "Classic Algorithm (one bit at a time)" +config INDIRECT_IOMEM + bool help - Calculate checksum one bit at a time. This is VERY slow, but has - no lookup table. This is provided as a debugging option. + This is selected by other options/architectures to provide the + emulated iomem accessors. - Only choose this option if you are debugging crc32. - -endchoice - -config CRC64 - tristate "CRC64 functions" +config INDIRECT_IOMEM_FALLBACK + bool + depends on INDIRECT_IOMEM help - This option is provided for the case where no in-kernel-tree - modules require CRC64 functions, but a module built outside - the kernel tree does. Such modules that use library CRC64 - functions require M here. + If INDIRECT_IOMEM is selected, this enables falling back to plain + mmio accesses when the IO memory address is not a registered + emulated region. -config CRC4 - tristate "CRC4 functions" +config TRACE_MMIO_ACCESS + bool "Register read/write tracing" + depends on TRACING && ARCH_HAVE_TRACE_MMIO_ACCESS help - This option is provided for the case where no in-kernel-tree - modules require CRC4 functions, but a module built outside - the kernel tree does. Such modules that use library CRC4 - functions require M here. + Create tracepoints for MMIO read/write operations. These trace events + can be used for logging all MMIO read/write operations. -config CRC7 - tristate "CRC7 functions" - help - This option is provided for the case where no in-kernel-tree - modules require CRC7 functions, but a module built outside - the kernel tree does. Such modules that use library CRC7 - functions require M here. - -config LIBCRC32C - tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check" - select CRYPTO - select CRYPTO_CRC32C - help - This option is provided for the case where no in-kernel-tree - modules require CRC32c functions, but a module built outside the - kernel tree does. Such modules that use library CRC32c functions - require M here. See Castagnoli93. - Module will be libcrc32c. - -config CRC8 - tristate "CRC8 function" - help - This option provides CRC8 function. Drivers may select this - when they need to do cyclic redundancy check according CRC8 - algorithm. Module will be called crc8. +source "lib/crc/Kconfig" +source "lib/crypto/Kconfig" config XXHASH tristate @@ -261,6 +180,13 @@ config ZLIB_DEFLATE tristate select BITREVERSE +config ZLIB_DFLTCC + def_bool y + depends on S390 + prompt "Enable s390x DEFLATE CONVERSION CALL support for kernel zlib" + help + Enable s390x hardware support for zlib in the kernel. + config LZO_COMPRESS tristate @@ -276,12 +202,16 @@ config LZ4HC_COMPRESS config LZ4_DECOMPRESS tristate -config ZSTD_COMPRESS +config ZSTD_COMMON select XXHASH tristate +config ZSTD_COMPRESS + select ZSTD_COMMON + tristate + config ZSTD_DECOMPRESS - select XXHASH + select ZSTD_COMMON tristate source "lib/xz/Kconfig" @@ -312,6 +242,10 @@ config DECOMPRESS_LZ4 select LZ4_DECOMPRESS tristate +config DECOMPRESS_ZSTD + select ZSTD_DECOMPRESS + tristate + # # Generic allocator support is selected if needed # @@ -341,6 +275,7 @@ config REED_SOLOMON_DEC16 # config BCH tristate + select BITREVERSE config BCH_CONST_PARAMS bool @@ -403,10 +338,14 @@ config INTERVAL_TREE See: - Documentation/rbtree.txt + Documentation/core-api/rbtree.rst for more information. +config INTERVAL_TREE_SPAN_ITER + bool + depends on INTERVAL_TREE + config XARRAY_MULTI bool help @@ -427,12 +366,17 @@ config ASSOCIATIVE_ARRAY for more information. +config CLOSURES + bool + config HAS_IOMEM bool depends on !NO_IOMEM - select GENERIC_IO default y +config HAS_IOPORT + bool + config HAS_IOPORT_MAP bool depends on HAS_IOMEM && !NO_IOPORT_MAP @@ -457,6 +401,9 @@ config CPUMASK_OFFSTACK them on the stack. This is a bit more expensive, but avoids stack overflow. +config FORCE_NR_CPUS + def_bool !SMP + config CPU_RMAP bool depends on SMP @@ -514,20 +461,6 @@ config LRU_CACHE config CLZ_TAB bool -config CORDIC - tristate "CORDIC algorithm" - help - This option provides an implementation of the CORDIC algorithm; - calculations are in fixed point. Module will be called cordic. - -config DDR - bool "JEDEC DDR data" - help - Data from JEDEC specs for DDR SDRAM memories, - particularly the AC timing parameters and addressing - information. This data is useful for drivers handling - DDR SDRAM controllers. - config IRQ_POLL bool "IRQ polling library" help @@ -544,13 +477,20 @@ config MPILIB config SIGNATURE tristate depends on KEYS - select CRYPTO - select CRYPTO_SHA1 + select CRYPTO_LIB_SHA1 select MPILIB help Digital signature verification. Currently only RSA is supported. Implementation is done using GnuPG MPI library +config DIMLIB + tristate + depends on NET + help + Dynamic Interrupt Moderation library. + Implements an algorithm for dynamically changing CQ moderation values + according to run time performance. + # # libfdt files, only selected if needed. # @@ -563,7 +503,12 @@ config OID_REGISTRY Enable fast lookup object identifier registry. config UCS2_STRING - tristate + tristate + +# +# generic vdso +# +source "lib/vdso/Kconfig" source "lib/fonts/Kconfig" @@ -591,15 +536,59 @@ config ARCH_NO_SG_CHAIN config ARCH_HAS_PMEM_API bool +config MEMREGION + bool + +config ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION + bool + +config GENERIC_CPU_CACHE_MAINTENANCE + bool + +config ARCH_HAS_MEMREMAP_COMPAT_ALIGN + bool + +# use memcpy to implement user copies for nommu architectures +config UACCESS_MEMCPY + bool + config ARCH_HAS_UACCESS_FLUSHCACHE bool -config ARCH_HAS_UACCESS_MCSAFE +# arch has a concept of a recoverable synchronous exception due to a +# memory-read error like x86 machine-check or ARM data-abort, and +# implements copy_mc_to_{user,kernel} to abort and report +# 'bytes-transferred' if that exception fires when accessing the source +# buffer. +config ARCH_HAS_COPY_MC bool +# Temporary. Goes away when all archs are cleaned up +config ARCH_STACKWALK + bool + config STACKDEPOT bool select STACKTRACE + help + Stack depot: stack trace storage that avoids duplication + +config STACKDEPOT_ALWAYS_INIT + bool + select STACKDEPOT + help + Always initialize stack depot during early boot + +config STACKDEPOT_MAX_FRAMES + int "Maximum number of frames in trace saved in stack depot" + range 1 256 + default 64 + depends on STACKDEPOT + +config REF_TRACKER + bool + depends on STACKTRACE_SUPPORT + select STACKDEPOT config SBITMAP bool @@ -607,14 +596,19 @@ config SBITMAP config PARMAN tristate "parman" if COMPILE_TEST -config PRIME_NUMBERS - tristate +config OBJAGG + tristate "objagg" if COMPILE_TEST -config STRING_SELFTEST - tristate "Test string functions" +config LWQ_TEST + bool "Boot-time test for lwq queuing" + help + Run boot-time test of light-weight queuing. endmenu +config GENERIC_IOREMAP + bool + config GENERIC_LIB_ASHLDI3 bool @@ -633,5 +627,25 @@ config GENERIC_LIB_CMPDI2 config GENERIC_LIB_UCMPDI2 bool -config OBJAGG - tristate "objagg" if COMPILE_TEST +config GENERIC_LIB_DEVMEM_IS_ALLOWED + bool + +config PLDMFW + bool + select CRC32 + default n + +config ASN1_ENCODER + tristate + +config POLYNOMIAL + tristate + +config FIRMWARE_TABLE + bool + +config UNION_FIND + bool + +config MIN_HEAP + bool |