From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3F45C433F5 for ; Wed, 23 Feb 2022 15:46:12 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 68EBF4C5E6; Wed, 23 Feb 2022 10:46:12 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AJx-QQoC5h-I; Wed, 23 Feb 2022 10:46:10 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D2B8A4C5DF; Wed, 23 Feb 2022 10:46:10 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id E82AD4C5E4 for ; Wed, 23 Feb 2022 10:46:08 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0thTSfLzvM5d for ; Wed, 23 Feb 2022 10:46:07 -0500 (EST) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 9A0324C5DB for ; Wed, 23 Feb 2022 10:46:07 -0500 (EST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 55470618C8; Wed, 23 Feb 2022 15:46:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF56BC340EB; Wed, 23 Feb 2022 15:46:02 +0000 (UTC) Date: Wed, 23 Feb 2022 15:45:59 +0000 From: Catalin Marinas To: Mark Brown Subject: Re: [PATCH v11 34/40] kselftest/arm64: sme: Provide streaming mode SVE stress test Message-ID: References: <20220207152109.197566-1-broonie@kernel.org> <20220207152109.197566-35-broonie@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220207152109.197566-35-broonie@kernel.org> Cc: Basant Kumar Dwivedi , Will Deacon , Luis Machado , Szabolcs Nagy , Marc Zyngier , Shuah Khan , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Alan Hayward , Shuah Khan , kvmarm@lists.cs.columbia.edu, Salil Akerkar X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu 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 Acked-by: Catalin Marinas _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm