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| author |   Mark Brown <broonie@kernel.org> | 2021-07-20 21:42:20 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2021-08-02 11:05:24 +0100 |
| commit | a8caaa239c60ad735b92fb2e8147c8c095181afb (patch) | |
| tree | 99ffff936b497141f07ac5ca421534057051f359 /Documentation/arm64/index.rst | |
| parent | arm64: use __func__ to get function name in pr_err (diff) | |
| download | linux-dev-a8caaa239c60ad735b92fb2e8147c8c095181afb.tar.xz linux-dev-a8caaa239c60ad735b92fb2e8147c8c095181afb.zip | |
arm64/sme: Document boot requirements for SME
Document our requirements for initialisation of the Scalable Matrix
Extension (SME) at kernel start. While we do have the ability to handle
mismatched vector lengths we will reject any late CPUs that can't support
the minimum set we determine at boot so for clarity we document a
requirement that all CPUs make the same vector length available.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210720204220.22951-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'Documentation/arm64/index.rst')
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