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f0616abd4e
linux/arch/arm64/lib
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Reiji Watanabe f0616abd4e arm64: clear_page() shouldn't use DC ZVA when DCZID_EL0.DZP == 1 
Currently, clear_page() uses DC ZVA instruction unconditionally.  But it
should make sure that DCZID_EL0.DZP, which indicates whether or not use
of DC ZVA instruction is prohibited, is zero when using the instruction.
Use STNP instead when DCZID_EL0.DZP == 1.

Fixes: f27bb139c3 ("arm64: Miscellaneous library functions")
Signed-off-by: Reiji Watanabe <reijiw@google.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20211206004736.1520989-2-reijiw@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-12-06 17:02:10 +00:00
..
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: Consistently enable crc32 extension 2020-04-28 14:36:32 +01:00
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 kasan: arm64: support specialized outlined tag mismatch checks 2021-05-26 23:31:26 +01:00
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: handle tags zeroing at page allocation time 2021-06-04 19:32:21 +01:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00