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linux/arch/arm64/lib
Kevin Bracey 5f2f5eaa3e arm64: lib: accelerate crc32_be
It makes no sense to leave crc32_be using the generic code while we
only accelerate the little-endian ops.

Even though the big-endian form doesn't fit as smoothly into the arm64,
we can speed it up and avoid hitting the D cache.

Tested on Cortex-A53. Without acceleration:

    crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64
    crc32: self tests passed, processed 225944 bytes in 192240 nsec
    crc32c: CRC_LE_BITS = 64
    crc32c: self tests passed, processed 112972 bytes in 21360 nsec

With acceleration:

    crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64
    crc32: self tests passed, processed 225944 bytes in 53480 nsec
    crc32c: CRC_LE_BITS = 64
    crc32c: self tests passed, processed 112972 bytes in 21480 nsec

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-01-31 11:21:43 +11:00
..
clear_page.S arm64: clear_page() shouldn't use DC ZVA when DCZID_EL0.DZP == 1 2021-12-06 17:02:10 +00:00
clear_user.S arm64: extable: consolidate definitions 2021-10-21 10:45:22 +01:00
copy_from_user.S arm64: lib: __arch_copy_from_user(): fold fixups into body 2021-10-21 10:45:21 +01:00
copy_page.S arm64: lib: Annotate {clear, copy}_page() as position-independent 2021-03-19 12:01:19 +00:00
copy_template.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
copy_to_user.S arm64: lib: __arch_copy_to_user(): fold fixups into body 2021-10-21 10:45:21 +01:00
crc32.S arm64: lib: accelerate crc32_be 2022-01-31 11:21:43 +11:00
csum.c arm64: csum: Disable KASAN for do_csum() 2020-04-15 21:36:41 +01:00
delay.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
error-inject.c arm64: Add support for function error injection 2019-08-07 13:53:09 +01:00
insn.c arm64: use __func__ to get function name in pr_err 2021-07-30 16:26:16 +01:00
kasan_sw_tags.S arm64: Use BTI C directly and unconditionally 2021-12-14 18:12:58 +00:00
Makefile isystem: delete global -isystem compile option 2021-09-22 09:26:24 +09:00
memchr.S arm64: Better optimised memchr() 2021-06-01 18:34:38 +01:00
memcmp.S arm64: update string routine copyrights and URLs 2021-06-02 17:58:26 +01:00
memcpy.S arm64: update string routine copyrights and URLs 2021-06-02 17:58:26 +01:00
memset.S arm64: Change .weak to SYM_FUNC_START_WEAK_PI for arch/arm64/lib/mem*.S 2020-10-30 08:32:31 +00:00
mte.S arm64: mte: DC {GVA,GZVA} shouldn't be used when DCZID_EL0.DZP == 1 2021-12-06 17:02:10 +00:00
strchr.S arm64: lib: Use modern annotations for assembly functions 2020-01-08 12:23:02 +00:00
strcmp.S arm64: Mitigate MTE issues with str{n}cmp() 2021-09-21 14:50:19 +01:00
strlen.S arm64: fix strlen() with CONFIG_KASAN_HW_TAGS 2021-07-12 13:36:22 +01:00
strncmp.S arm64: Mitigate MTE issues with str{n}cmp() 2021-09-21 14:50:19 +01:00
strnlen.S arm64: lib: Use modern annotations for assembly functions 2020-01-08 12:23:02 +00:00
strrchr.S arm64: lib: Use modern annotations for assembly functions 2020-01-08 12:23:02 +00:00
tishift.S arm64: lib: Use modern annotations for assembly functions 2020-01-08 12:23:02 +00:00
uaccess_flushcache.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
xor-neon.c arm64/xor: use EOR3 instructions when available 2021-12-14 12:14:26 +00:00