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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4BE8DC433F5 for ; Wed, 23 Feb 2022 15:49:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242455AbiBWPuJ (ORCPT ); Wed, 23 Feb 2022 10:50:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39354 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236329AbiBWPuI (ORCPT ); Wed, 23 Feb 2022 10:50:08 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71C3EC12FD for ; Wed, 23 Feb 2022 07:49:41 -0800 (PST) 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 09D6361917 for ; Wed, 23 Feb 2022 15:49:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8FA5AC340E7; Wed, 23 Feb 2022 15:49:37 +0000 (UTC) Date: Wed, 23 Feb 2022 15:49:34 +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 40/40] kselftest/arm64: Add SME support to syscall ABI test Message-ID: References: <20220207152109.197566-1-broonie@kernel.org> <20220207152109.197566-41-broonie@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220207152109.197566-41-broonie@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org On Mon, Feb 07, 2022 at 03:21:09PM +0000, Mark Brown wrote: > For every possible combination of SVE and SME vector length verify that for > each possible value of SVCR after a syscall we leave streaming mode and ZA > is preserved. We don't need to take account of any streaming/non streaming > SVE vector length changes in the assembler code since the store instructions > will handle the vector length for us. We log if the system supports FA64 and > only try to set FFR in streaming mode if it does. > > Signed-off-by: Mark Brown Acked-by: Catalin Marinas