linux-kernel - Re: [PATCH v2 5/6] arm64/sme: Reenable SME

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Message-ID: <7e62661d-03bb-43c9-b15a-fda0a379497a@arm.com>
Date: Tue, 10 Dec 2024 09:35:51 +0000
From: Luis Machado <luis.machado@....com>
To: Mark Brown <broonie@...nel.org>, Catalin Marinas
 <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>, Dave Martin <Dave.Martin@....com>,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/6] arm64/sme: Reenable SME

On 12/4/24 15:20, Mark Brown wrote:
> Now that fixes for all the known issues with SME have been applied
> remove the BROKEN dependency from it so it's generally available again.
> 
> Signed-off-by: Mark Brown <broonie@...nel.org>
> ---
>  arch/arm64/Kconfig | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 100570a048c5e8892c0112704f9ca74c4fc55b27..7e3182dd6fa0dadd961c352f88484cff0e520eaa 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -2270,7 +2270,6 @@ config ARM64_SME
>  	bool "ARM Scalable Matrix Extension support"
>  	default y
>  	depends on ARM64_SVE
> -	depends on BROKEN
>  	help
>  	  The Scalable Matrix Extension (SME) is an extension to the AArch64
>  	  execution state which utilises a substantial subset of the SVE
> 

FYI, I gave this series a try with the emulator and GDB's SME/SVE testsuite and
it still looks good from userspace's perspective.

Tested-By: Luis Machado <luis.machado@....com>