arm64: smp: prepare for smp_processor_id() rework
Subsequent patches will make smp_processor_id() use a percpu variable. This will make smp_processor_id() dependent on the percpu offset, and thus we cannot use smp_processor_id() to figure out what to initialise the offset to. Prepare for this by initialising the percpu offset based on current::cpu, which will work regardless of how smp_processor_id() is implemented. Also, make this relationship obvious by placing this code together at the start of secondary_start_kernel(). Signed-off-by:Mark Rutland <mark.rutland@arm.com> Tested-by:
Laura Abbott <labbott@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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623b476f
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