powerpc/64s: move stack SLB pinning out of line from _switch

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The large hunk of SLB pinning in _switch asm code makes it more
difficult to see everything else that's going on. It is a less important
path now, so icache and fetch footprint overhead can be avoided.

Move context switch stack SLB pinning out of line.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230606132447.315714-2-npiggin@gmail.com

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Nicholas Piggin 2023-06-06 23:24:42 +10:00 • committed by Michael Ellerman

parent 31b4f69dba

commit d6b87c3eb6

1 changed files with 62 additions and 51 deletions

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arch/powerpc/kernel/entry_64.S

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