arm64/lib: copy_page: avoid x18 register in assembler code

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Register x18 will no longer be used as a caller save register in the
future, so stop using it in the copy_page() code.

Link: https://patchwork.kernel.org/patch/9836869/
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
[Sami: changed the offset and bias to be explicit]
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>

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Ard Biesheuvel 2019-12-06 14:13:38 -08:00 • committed by Will Deacon

parent e3ec6582d1

commit 7f153ccb9b

1 changed files with 19 additions and 19 deletions

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arch/arm64/lib/copy_page.S

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