Mark Brown 12efc92c13 UPSTREAM: arm64/sme: Implement vector length configuration prctl()s ...

As for SVE provide a prctl() interface which allows processes to
configure their SME vector length.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220419112247.711548-12-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 9e4ab6c89109472082616f8d2f6ada7deaffe161)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 233587962
Bug: 233588291
Change-Id: I99b778aea77b19bac68f1ddb61d77b51f64b49cb

2022-08-10 08:58:11 +01:00

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