linux-6.15/lib/Kconfig

1 # SPDX-License-Identifier: GPL-2.0-only
15 	bool "Automatically choose fastest RAID6 PQ functions"
19 	  Benchmark all available RAID6 PQ functions on init and choose the
31 	  converting bitfields between a CPU-usable representation and a
33 	    - Is little endian (bytes are reversed within a 32-bit group)
34 	    - The least-significant 32-bit word comes first (within a 64-bit
36 	    - The most significant bit of a byte is at its right (bit 0 of a
39 	  in the data sheets of the peripherals they are in control of.
41 	  When in doubt, say N.
50 	  For more information on KUnit and unit tests in general,
51 	  please refer to the KUnit documentation in Documentation/dev-tools/kunit/.
53 	  When in doubt, say N.
62 	  This option enables the use of hardware bit-reversal instructions on
102 	bool "Access I/O in non-MMIO mode"
107 	  hosts which can not be accessed in MMIO mode. Using the logical PIO
108 	  mechanism, the host-local I/O resource can be mapped into system
110 	  system can access the I/O devices with the mapped-logic PIO through
116 	  When in doubt, say N.
144 	  The CRC-CCITT library functions.  Select this if your module uses any
145 	  of the functions from <linux/crc-ccitt.h>.
150 	  The CRC16 library functions.  Select this if your module uses any of
151 	  the functions from <linux/crc16.h>.
156 	  The CRC-T10DIF library functions.  Select this if your module uses
157 	  any of the functions from <linux/crc-t10dif.h>.
169 	  The CRC-ITU-T library functions.  Select this if your module uses
170 	  any of the functions from <linux/crc-itu-t.h>.
176 	  The CRC32 library functions.  Select this if your module uses any of
177 	  the functions from <linux/crc32.h> or <linux/crc32c.h>.
189 	  The CRC64 library functions.  Select this if your module uses any of
190 	  the functions from <linux/crc64.h>.
202 	  The CRC4 library functions.  Select this if your module uses any of
203 	  the functions from <linux/crc4.h>.
208 	  The CRC7 library functions.  Select this if your module uses any of
209 	  the functions from <linux/crc7.h>.
214 	  The CRC8 library functions.  Select this if your module uses any of
215 	  the functions from <linux/crc8.h>.
222 	  architecture-optimized implementations of any CRC variants that are
248 	  This option enables the 32 bit PRNG library functions to perform a
274 	 Enable s390x hardware support for zlib in the kernel.
388 	  that (k + m*t) <= 2**m - 1.
395 	  Constant value for error correction capability in bits 't'.
420 	  Simple, embeddable, interval-tree. Can find the start of an
421 	  overlapping range in log(n) time and then iterate over all
427 		Documentation/core-api/rbtree.rst
438 	  Support entries which occupy multiple consecutive indices in the
446 	  modify.  The algorithms are non-recursive, and the trees are highly
451 		Documentation/core-api/assoc_array.rst
503 #	is ridiculous for the amount of code involved.	Until an out-of-tree
505 #	when required.  Since we're ignoring out-of-tree users,	there's also
510 	  simple text pattern matching.  It originated in the ATA code
514 	  All drivers in the Linux kernel tree that require this function
516 	  are compiling an out-of tree driver which tells you that it
520 	tristate "glob self-test on init"
523 	  This option enables a simple self-test of the glob_match
539 # Generic 64-bit atomic support is selected if needed
643 # memory-read error like x86 machine-check or ARM data-abort, and
645 # 'bytes-transferred' if that exception fires when accessing the source
667 	int "Maximum number of frames in trace saved in stack depot"
687 	bool "Boot-time test for lwq queuing"
689           Run boot-time test of light-weight queuing.