arm64: mops: detect and enable FEAT_MOPS

Browse source

The Arm v8.8/9.3 FEAT_MOPS feature provides new instructions that
perform a memory copy or set. Wire up the cpufeature code to detect the
presence of FEAT_MOPS and enable it.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Link: https://lore.kernel.org/r/20230509142235.3284028-10-kristina.martsenko@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

...

This commit is contained in:

Kristina Martsenko 2023-05-09 15:22:33 +01:00 • committed by Catalin Marinas

parent 8cd076a67d

commit b7564127ff

7 changed files with 24 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

Documentation/arm64/cpu-feature-registers.rst

View file

3

Documentation/arm64/elf_hwcaps.rst

View file

1

arch/arm64/include/asm/hwcap.h

View file

1

arch/arm64/include/uapi/asm/hwcap.h

View file

15

arch/arm64/kernel/cpufeature.c

View file

1

arch/arm64/kernel/cpuinfo.c

View file

1

arch/arm64/tools/cpucaps

View file