Re: [PATCH v3 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON

2017-10-11 Thread Dave Martin
On Wed, Oct 11, 2017 at 03:16:47PM +0100, Catalin Marinas wrote: > On Tue, Oct 10, 2017 at 07:38:20PM +0100, Dave P Martin wrote: > > The EFI runtime services ABI permits calls to EFI to clobber > > certain FPSIMD/NEON registers, as per the AArch64 procedure call > > standard. > > > >

Re: [PATCH v3 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON

2017-10-11 Thread Catalin Marinas
On Tue, Oct 10, 2017 at 07:38:20PM +0100, Dave P Martin wrote: > 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