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arm64: head.S: document the use of callee saved registers
authorArd Biesheuvel <ard.biesheuvel@linaro.org>
Wed, 31 Aug 2016 11:05:17 +0000 (12:05 +0100)
committerWill Deacon <will.deacon@arm.com>
Fri, 2 Sep 2016 10:47:51 +0000 (11:47 +0100)
commita9be2ee09385387819ca22bf6522b2437334489e
treefbd32e90246ccb9ba12f4f6bda0f9463ebe24b4atree | snapshot
parent60699ba18b69ff210ed0304bc23f6c9d11d27a72commit | diff
arm64: head.S: document the use of callee saved registers

Now that the only remaining occurrences of the use of callee saved
registers are on the primary boot path, add a comment to the code
which register is used for what.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/kernel/head.S diff | blob | history
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