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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 673F4C433EF for ; Wed, 23 Feb 2022 15:50:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hZ6Q0Q45maFFqMXWMaJn80fkCM9BjVHE6ds3tZuNbJw=; b=LSixBYEhNKheuX LuT45tORlib91x10ia85/b9nDfbjbWYEFe4B1HrHDIEMTJ3Rrs1RGL97zKC3+Rdx7RIgU5jU3Zzyb BG5YX90gHxiBFUiugygMiiLZw8+QuvCBe4GMgemrs/7lI40Nd4uCkw3+vESk7L65fbnngt3+wjs2w 79zhXhLu7E34yBBH8tVc/4h0U1mUgqpJdeqI+MDcahilOStHKiza1dk+Va3HbUSkoBVOGN/er38xf 4nL+W2zfeGFSiQplYV69TBSU8MuSBZIjDlaiMwFCN4BP/fFGzjHJTVFF65MR33/2HK1fZz9WG1VaS 9p060Ehkojko5Syj8s9g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMtsZ-00F8eI-Oa; Wed, 23 Feb 2022 15:48:36 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMtqA-00F7bJ-Qa for linux-arm-kernel@lists.infradead.org; Wed, 23 Feb 2022 15:46:08 +0000 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 Cc: Will Deacon , Marc Zyngier , Shuah Khan , Shuah Khan , Alan Hayward , Luis Machado , Salil Akerkar , Basant Kumar Dwivedi , Szabolcs Nagy , James Morse , Alexandru Elisei , Suzuki K Poulose , 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: 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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220223_074606_948502_BFD33A85 X-CRM114-Status: GOOD ( 12.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel