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arm64/sysreg: Update system registers for SME 2 and 2.1
FEAT_SME2 and FEAT_SME2P1 introduce several new SME features which can be enumerated via ID_AA64SMFR0_EL1 and a new register ZT0 access to which is controlled via SMCR_ELn, add the relevant register description. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20221208-arm64-sme2-v4-3-f2fa0aef982f@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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