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Date:   Wed, 23 Feb 2022 15:45:59 +0000
From:   Catalin Marinas <catalin.marinas@arm.com>
To:     Mark Brown <broonie@kernel.org>
Cc:     Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
        Shuah Khan <skhan@linuxfoundation.org>,
        Shuah Khan <shuah@kernel.org>,
        Alan Hayward <alan.hayward@arm.com>,
        Luis Machado <luis.machado@arm.com>,
        Salil Akerkar <Salil.Akerkar@arm.com>,
        Basant Kumar Dwivedi <Basant.KumarDwivedi@arm.com>,
        Szabolcs Nagy <szabolcs.nagy@arm.com>,
        James Morse <james.morse@arm.com>,
        Alexandru Elisei <alexandru.elisei@arm.com>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        linux-arm-kernel@lists.infradead.org,
        linux-kselftest@vger.kernel.org, kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH v11 34/40] kselftest/arm64: sme: Provide streaming mode
 SVE stress test
Message-ID: <YhZWt/njd75bqlOK@arm.com>
References: <20220207152109.197566-1-broonie@kernel.org>
 <20220207152109.197566-35-broonie@kernel.org>
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On Mon, Feb 07, 2022 at 03:21:03PM +0000, Mark Brown wrote:
> One of the features of SME is the addition of streaming mode, in which we
> have access to a set of streaming mode SVE registers at the SME vector
> length. Since these are accessed using the SVE instructions let's reuse
> the existing SVE stress test for testing with a compile time option for
> controlling the few small differences needed:
> 
>  - Enter streaming mode immediately on starting the program.
>  - In streaming mode FFR is removed so skip reading and writing FFR.
> 
> In order to avoid requiring a cutting edge toolchain with SME support
> use the op/CR form for specifying SVCR.
> 
> Signed-off-by: Mark Brown <broonie@kernel.org>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>