linux-kernel - Re: [PATCH v2 08/14] powerpc: Implement ARCH_HAS_KERNEL_FPU

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Message-ID: <87wmszj9oz.fsf@mail.lhotse>
Date: Thu, 28 Dec 2023 14:19:08 +1100
From: Michael Ellerman <mpe@...erman.id.au>
To: Samuel Holland <samuel.holland@...ive.com>,
 linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
 x86@...nel.org, linux-riscv@...ts.infradead.org, Christoph Hellwig
 <hch@....de>
Cc: loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org,
 amd-gfx@...ts.freedesktop.org, linux-arch@...r.kernel.org, Samuel Holland
 <samuel.holland@...ive.com>
Subject: Re: [PATCH v2 08/14] powerpc: Implement ARCH_HAS_KERNEL_FPU_SUPPORT

Samuel Holland <samuel.holland@...ive.com> writes:
> PowerPC provides an equivalent to the common kernel-mode FPU API, but in
> a different header and using different function names. The PowerPC API
> also requires a non-preemptible context. Add a wrapper header, and
> export the CFLAGS adjustments.
>
> Reviewed-by: Christoph Hellwig <hch@....de>
> Signed-off-by: Samuel Holland <samuel.holland@...ive.com>
> ---
>
> (no changes since v1)
>
>  arch/powerpc/Kconfig           |  1 +
>  arch/powerpc/Makefile          |  5 ++++-
>  arch/powerpc/include/asm/fpu.h | 28 ++++++++++++++++++++++++++++
>  3 files changed, 33 insertions(+), 1 deletion(-)
>  create mode 100644 arch/powerpc/include/asm/fpu.h

Acked-by: Michael Ellerman <mpe@...erman.id.au> (powerpc)

cheers