From: Catalin Marinas <catalin.marinas@arm.com>
To: Mark Brown <broonie@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
Shuah Khan <skhan@linuxfoundation.org>,
Will Deacon <will@kernel.org>,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH 4/4] kselftest/arm64: Fix compilation of SME instructions in the arm64 fp tests
Date: Fri, 8 Nov 2024 14:59:04 +0000 [thread overview]
Message-ID: <Zy4nONl6Ia7B7nLq@arm.com> (raw)
In-Reply-To: <15526a78-b9ad-46d2-b451-013dd3b8356b@sirena.org.uk>
On Fri, Nov 08, 2024 at 02:53:29PM +0000, Mark Brown wrote:
> On Fri, Nov 08, 2024 at 01:49:20PM +0000, Catalin Marinas wrote:
> > SMSTOP/SMSTART require the SME arch extension for the assembler. Add
> > '.arch_extension sme' to za-test.S and zt-test.S.
>
> I've got an alternative, more idiomatic fix for this running through my
> testing - SME is still relatively recent so we can't rely on people's
> toolchains having it and we should use a .inst instead. The issue was
> that the toolchain I'm using locally appears to default to a full fat
> version of the architecture and happily assembled the SMSTART even
> though we don't have a .inst macro for it like we do with SMSTOP (which
> is why that didn't error). We only have SMSTART SM and SMSTART ZA.
It makes sense. Please post yours and I'll drop this one.
--
Catalin
next prev parent reply other threads:[~2024-11-08 15:42 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-08 13:49 [PATCH 0/4] kselftest/arm64: Fix compilation warnings/errors in the arm64 tests Catalin Marinas
2024-11-08 13:49 ` [PATCH 1/4] kselftest/arm64: Fix printf() compiler warnings in the arm64 fp tests Catalin Marinas
2024-11-08 15:01 ` Mark Brown
2024-11-08 13:49 ` [PATCH 2/4] kselftest/arm64: Fix printf() warning in the arm64 MTE prctl() test Catalin Marinas
2024-11-08 15:10 ` Mark Brown
2024-11-08 15:25 ` Catalin Marinas
2024-11-08 15:30 ` Mark Brown
2024-11-08 15:35 ` Catalin Marinas
2024-11-08 13:49 ` [PATCH 3/4] kselftest/arm64: Fix printf() compiler warnings in the arm64 syscall-abi.c tests Catalin Marinas
2024-11-08 15:04 ` Mark Brown
2024-11-08 13:49 ` [PATCH 4/4] kselftest/arm64: Fix compilation of SME instructions in the arm64 fp tests Catalin Marinas
2024-11-08 14:53 ` Mark Brown
2024-11-08 14:59 ` Catalin Marinas [this message]
2024-11-08 14:58 ` [PATCH 0/4] kselftest/arm64: Fix compilation warnings/errors in the arm64 tests Mark Brown
2024-11-08 15:03 ` Catalin Marinas
2024-11-08 15:16 ` Mark Brown
2024-11-12 16:07 ` (subset) " Catalin Marinas
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