[PATCH v6 3/3] arm64: Kconfig: Enable usage of optimized memset/memcpy/memmove

[Stefan Roese]

Hi Tom,

On 23.09.21 21:56, Tom Rini wrote:
> On Thu, Sep 02, 2021 at 05:00:19PM +0200, Stefan Roese wrote:
> 
>> This patch enables the use of the optimized memset(), memmove() &
>> memcpy() versions recently added on ARM64.
>>
>> Please note that these optimized functions are now only enabled for
>> recent GCC versions (>= 9.4), as earlier GCC versions throw these
>> errors:
>>
>> aarch64-linux-ar: warning: arch/arm/lib/memset-arm64.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000
>> ...
>>
>> Signed-off-by: Stefan Roese <sr at denx.de>
> 
> So, I'm tempted to re-do this patch with default off, on ARM64.  As-is,
> this causes failure to boot on two similar but different TI platforms
> (am65x_evm_a53, j721e_evm_a72) and my amlogic Le Potato (libretech-cc).
> This seems to be fine on my Pi 3.

If this generates problems on some ARM64 platforms then yes, please add
it with default off for now.

Thanks,
Stefan