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

From: Joel Stanley <joel@jms.id.au>
To: buildroot@buildroot.org, Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: "Bernd Kuhls" <bernd.kuhls@t-online.de>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Romain Naour" <romain.naour@gmail.com>,
	"Cédric Le Goater" <clg@kaod.org>
Subject: [Buildroot] [PATCH 0/9] powerpc: Fix ppc64le configurations
Date: Fri, 29 Jul 2022 09:38:55 +0930	[thread overview]
Message-ID: <20220729000904.1295295-1-joel@jms.id.au> (raw)

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.

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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