Joey Gouly 97d8bdf331 arm64: cpufeature: add HWCAP for FEAT_RPRES ...

commit 1175011a7d0030d49dc9c10bde36f08f26d0a8ee upstream.

Add a new HWCAP to detect the Increased precision of Reciprocal Estimate
and Reciprocal Square Root Estimate feature (FEAT_RPRES), introduced in Armv8.7.

Also expose this to userspace in the ID_AA64ISAR2_EL1 feature register.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-4-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-03-11 12:11:51 +01:00

..

acpi_object_usage.rst

Documentation: arm64/acpi_object_usage: drop duplicate words

2020-07-05 14:37:45 -06:00

amu.rst

Documentation: Chinese translation of Documentation/arm64/amu.rst

2020-09-28 15:24:24 -06:00

arm-acpi.rst

arm64: Replace HTTP links with HTTPS ones

2020-07-23 14:04:37 -06:00

booting.rst

Merge tag 'docs-5.8' of git://git.lwn.net/linux

2020-06-01 15:45:27 -07:00

cpu-feature-registers.rst

arm64: cpufeature: add HWCAP for FEAT_RPRES

2022-03-11 12:11:51 +01:00

elf_hwcaps.rst

arm64: cpufeature: add HWCAP for FEAT_RPRES

2022-03-11 12:11:51 +01:00

hugetlbpage.rst

Documentation: Chinese translation of Documentation/arm64/hugetlbpage.rst

2020-10-21 15:15:17 -06:00

index.rst

Merge tag 'docs-5.10' of git://git.lwn.net/linux

2020-10-12 16:21:29 -07:00

kasan-offsets.sh

arm64: kasan: Switch to using KASAN_SHADOW_OFFSET

2019-08-09 11:17:11 +01:00

legacy_instructions.rst

docs: arm64: convert docs to ReST and rename to .rst

2019-06-14 14:20:27 -06:00

memory-tagging-extension.rst

arm64: mte: Document that user PSTATE.TCO is ignored by kernel uaccess

2020-10-28 17:50:39 +00:00

memory.rst

docs: arm64: fix trivial spelling enought to enough in memory.rst

2020-02-20 10:03:14 +00:00

perf.rst

docs: arm64: convert perf.txt to ReST format

2020-06-19 14:09:39 -06:00

pointer-authentication.rst

docs: arm64: convert docs to ReST and rename to .rst

2019-06-14 14:20:27 -06:00

silicon-errata.rst

arm64: Add workaround for Arm Cortex-A77 erratum 1508412

2020-10-29 12:56:01 +00:00

sve.rst

Merge tag 'docs-5.9' of git://git.lwn.net/linux

2020-08-04 22:47:54 -07:00

tagged-address-abi.rst

userfaultfd: do not untag user pointers

2021-07-28 14:35:46 +02:00

tagged-pointers.rst

arm64: Relax Documentation/arm64/tagged-pointers.rst

2019-08-27 18:16:20 +01:00