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Switch the arm64 pcpu to a global register variable

Description

Switch the arm64 pcpu to a global register variable

This removes an unneeded instruction to move the pointer from x18 to a
temporary register.

Reviewed by: emaste
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D26971

Details

Provenance
andrewAuthored on Jan 11 2021, 3:43 PM
Reviewer
emaste
Differential Revision
D26971: Switch the arm64 pcpu to a global register variable
Parents
R10:594389d1de64: Create a stack frame when needed in the arm64 kernel
Branches
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Tags
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