Commit b472db6c authored by Dave Martin's avatar Dave Martin Committed by Will Deacon
Browse files

arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON 



The EFI runtime services ABI permits calls to EFI to clobber
certain FPSIMD/NEON registers, as per the AArch64 procedure call
standard.

Saving/restoring the clobbered registers around such calls needs
KERNEL_MODE_NEON, but the dependency is missing from Kconfig.

This patch adds the missing dependency.

This will aid bisection of the patches implementing support for the
ARM Scalable Vector Extension (SVE).

Signed-off-by: default avatarDave Martin <Dave.Martin@arm.com>
Reviewed-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent 93390c0a

arch/arm64/Kconfig

+1 −0
Original line number Original line Diff line number Diff line
@@ -1064,6 +1064,7 @@ config EFI_STUB 
config EFI

config EFI

	bool "UEFI runtime support"

	bool "UEFI runtime support"

	depends on OF && !CPU_BIG_ENDIAN

	depends on OF && !CPU_BIG_ENDIAN

	depends on KERNEL_MODE_NEON

	select LIBFDT

	select LIBFDT

	select UCS2_STRING

	select UCS2_STRING

	select EFI_PARAMS_FROM_FDT

	select EFI_PARAMS_FROM_FDT

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