Re: [Buildroot] [PATCH 0/9] powerpc: Fix ppc64le configurations

["Yann E. MORIN" <yann.morin.1998@free.fr>]

Joel, All,

On 2022-07-29 09:38 +0930, Joel Stanley spake thusly:
> The autobuilder has detected a bunch of powerpc build failures in recent
> months, leading to workarounds applied to various packages. Many of these
> failures were caused by invalid GCC configurations: building GCC in
> little endian or 64-bit mode for CPUs that don't support that
> configuration.

Thanks for tackling the issue! 👍

There has been some feedback on some patches in the series, which will
require either some of the patches to be reworked, and/or the commit
logs to be expanded with some more detailed explanations.

So I've marked this series as Changes-requested in patchwork.

Looking forward to seeing he next iteration to eventually fix the
issues!

Regards,
Yann E. MORIN.

> The first few patches clarify the menuconfig options for powerpc.
> 
> The third patch "arch/powerpc: Enable powerpc64le only on CPUs that
> support it" should stop a user from selecting a ppc64le config for a CPU
> that doesn't support it. The list of supported configurations can be
> cross referenced from the kernel Kconfig:
> 
>  https://elixir.bootlin.com/linux/v5.18/source/arch/powerpc/platforms/Kconfig.cputype#L157
> 
> Patches 4-5 add new Power server CPUs from IBM.
> 
> The final three patches remove workarounds applied for power8, which
> are unnecessary now. This should enable packages to be built with
> optimisations for p9/p10 where applicable.
> 
> I've boot tested all of the in-tree configs, and tested the p9 and p10
> cpu types.
> 
> Joel Stanley (9):
>   arch/powerpc: Hide SPE ABI behind CPU type
>   arch/powerpc: Clarify generic CPUs
>   arch/powerpc: Enable powerpc64le only on CPUs that support it
>   package/glibc: Use powerpc64le instead of power8
>   arch/powerpc: Add Power9 CPU type
>   arch/powerpc: Add Power10 CPU type
>   package/mesa3d: Remove force disable of power8
>   package/zlib-ng: Revert Power8 special casing
>   package/openblas: Add Power9 and Power10 targets
> 
>  arch/Config.in.powerpc     | 40 +++++++++++++++++++++++++++++++-------
>  package/glibc/Config.in    |  2 +-
>  package/mesa3d/mesa3d.mk   |  3 +--
>  package/openblas/Config.in |  2 ++
>  package/zlib-ng/zlib-ng.mk |  6 ------
>  5 files changed, 37 insertions(+), 16 deletions(-)
> 
> -- 
> 2.35.1
> 
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