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Clément Léger 2e2cf5581f riscv: cpufeature: add validation for zfa, zfh and zfhmin
These extensions depends on the F one. Add a validation callback
checking for the F extension to be present. Now that extensions are
correctly reported using the F/D presence, we can remove the
has_fpu() check in hwprobe_isa_ext0().

Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250527100001.33284-1-cleger@rivosinc.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2025-09-18 19:51:09 -06:00
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README

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.