arm64/hwcap: Define hwcaps for 2023 DPISA features

The 2023 architecture extensions include a large number of floating point
features, most of which simply add new instructions. Add hwcaps so that
u

arm64/hwcap: Define hwcaps for 2023 DPISA features

The 2023 architecture extensions include a large number of floating point
features, most of which simply add new instructions. Add hwcaps so that
userspace can enumerate these features.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240306-arm64-2023-dpisa-v5-6-c568edc8ed7f@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Documentation/arm64: Fix typos in elf_hwcaps

Small typos in register and field names.

Signed-off-by: Marielle Novastrider <marielle@novastrider.com>
Acked-by: Will Deacon <will@kernel.org>
Link: ht

Documentation/arm64: Fix typos in elf_hwcaps

Small typos in register and field names.

Signed-off-by: Marielle Novastrider <marielle@novastrider.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20231031200838.55569-1-marielle@novastrider.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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arm64: add FEAT_LSE128 HWCAP

Add HWCAP for FEAT_LSE128 (128-bit Atomic instructions).

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/

arm64: add FEAT_LSE128 HWCAP

Add HWCAP for FEAT_LSE128 (128-bit Atomic instructions).

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20231003124544.858804-2-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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arm64: add FEAT_LRCPC3 HWCAP

FEAT_LRCPC3 adds more instructions to support the Release Consistency model.
Add a HWCAP so that userspace can make decisions about instructions it can use.

Signed-off-

arm64: add FEAT_LRCPC3 HWCAP

FEAT_LRCPC3 adds more instructions to support the Release Consistency model.
Add a HWCAP so that userspace can make decisions about instructions it can use.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230919162757.2707023-2-joey.gouly@arm.com
[catalin.marinas@arm.com: change the HWCAP number]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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arm64/sve: Report FEAT_SVE_B16B16 to userspace

SVE 2.1 introduced a new feature FEAT_SVE_B16B16 which adds instructions
supporting the BFloat16 floating point format. Report this to userspace
throug

arm64/sve: Report FEAT_SVE_B16B16 to userspace

SVE 2.1 introduced a new feature FEAT_SVE_B16B16 which adds instructions
supporting the BFloat16 floating point format. Report this to userspace
through the ID registers and hwcap.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230915-arm64-zfr-b16b16-el0-v1-1-f9aba807bdb5@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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arm64/hbc: Document HWCAP2_HBC

When we added support for FEAT_HBC we added a new hwcap but did not
document that we had done so, add the documentation.

Signed-off-by: Mark Brown <broonie@kernel.org

arm64/hbc: Document HWCAP2_HBC

When we added support for FEAT_HBC we added a new hwcap but did not
document that we had done so, add the documentation.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://lore.kernel.org/r/20230914-arm64-feat-hbc-doc-v1-1-797d25f06897@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>

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Merge tag 'docs-arm64-move' of git://git.lwn.net/linux

Pull arm64 documentation move from Jonathan Corbet:
"Move the arm64 architecture documentation under Documentation/arch/.

This brings some

Merge tag 'docs-arm64-move' of git://git.lwn.net/linux

Pull arm64 documentation move from Jonathan Corbet:
"Move the arm64 architecture documentation under Documentation/arch/.

This brings some order to the documentation directory, declutters the
top-level directory, and makes the documentation organization more
closely match that of the source"

* tag 'docs-arm64-move' of git://git.lwn.net/linux:
perf arm-spe: Fix a dangling Documentation/arm64 reference
mm: Fix a dangling Documentation/arm64 reference
arm64: Fix dangling references to Documentation/arm64
dt-bindings: fix dangling Documentation/arm64 reference
docs: arm64: Move arm64 documentation under Documentation/arch/

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docs: arm64: Move arm64 documentation under Documentation/arch/

Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation direct

docs: arm64: Move arm64 documentation under Documentation/arch/

Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/arm64 into arch/ (along with the Chinese equvalent
translations) and fix up documentation references.

Cc: Will Deacon <will@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <src.res@email.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Yantengsi <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

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