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arm64: SMCCC conduit cleanup

Will Deacon linux-arm-kernel 1 version New

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  1. v1 Latest0 of 4 patches 0 repliesNew

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Cover letter [PATCH 0/4] arm64: SMCCC conduit cleanup
Quoted 10 lines · Mark Rutland

Currently, the cpu errata code goes digging into PSCI internals to discover the SMCCC conduit, using the (arguably misnamed) PSCI_CONDUIT_* definitions. This lack of abstraction is somewhat unfortunate.

Further, the SDEI code has an almost identical set of CONDUIT_* definitions, and the duplication is rather unfortunate.

Let's unify things behind a common set of SMCCC_CONDUIT_* definitions, and expose the SMCCCv1.1 conduit via a new helper that hides the PSCI driver internals.

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Will