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In subsequent patches we'll need to determine the SVE/SME state size for a given SVE VL and SME VL regardless of whether a task is currently configured with those VLs. Split the sizing logic out of sve_state_size() and sme_state_size() so that we don't need to open-code this logic elsewhere. At the same time, apply minor cleanups: * Move sve_state_size() into fpsimd.h, matching the placement of sme_state_size(). * Remove the feature checks from sve_state_size(). We only call sve_state_size() when at least one of SVE and SME are supported, and when either of the two is not supported, the task's corresponding SVE/SME vector length will be zero. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20250508132644.1395904-8-mark.rutland@arm.com Signed-off-by: Will Deacon <will@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.