Hi Wooyeon,
There are a *lot* of people Cc' here, many of whomo will find this
irrelevant. Please try to keep the Cc list constrained to a reasonable
number of interested parties.
On Fri, Jun 05, 2020 at 04:30:52PM +0900, Wooyeon Kim wrote:
> From: Wooki Min <wooki....@samsung.com>
>
> This is an patch to use FPSIMD register in Kernel space.
> It need to manage to use FPSIMD register without damaging it
> of the user task.
> Following items have been implemented and added.
Please introduce the problem you are trying to solve in more detail. We
already have kernel_neon_{begin,end}() for kernel-mode NEON; why is that
not sufficient for your needs? Please answer this before considering
other details.
What do you want to use this for?
>
> 1. Using FPSIMD in ISR (in_interrupt)
> It can used __efi_fpsimd_begin/__efi_fpsimd_end
> which is already implemented.
> Save fpsimd state before entering ISR,
> and restore fpsimd state after ISR ends.
> For use in external kernel module,
> it is declared as EXPORT_SYMBOL.
This patch adds no in-tree modular users of this, so per the usual
conventions, NAK to EXPORT_SYMBOL().
Thanks,
Mark.
