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 79AF0C433F5 for ; Wed, 23 Feb 2022 15:49:46 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0703B4C62A; Wed, 23 Feb 2022 10:49:46 -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 z-G4UMAzJlRs; Wed, 23 Feb 2022 10:49:44 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 694114C63B; Wed, 23 Feb 2022 10:49:44 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id AB6904C622 for ; Wed, 23 Feb 2022 10:49:42 -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 3+sxe2AqjPiQ for ; Wed, 23 Feb 2022 10:49:41 -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 9EF614C620 for ; Wed, 23 Feb 2022 10:49:41 -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 0962E61913; 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 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-Disposition: inline In-Reply-To: <20220207152109.197566-41-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 03:21:09PM +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 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm 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 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 E6796C433F5 for ; Wed, 23 Feb 2022 15:54:34 +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=jjSXWLOSTb8CUZcrYPvtFv03xlk7i258lmMW6ShRxYs=; b=lQAlg/8oPs7sQP NbAynCK0IvsUCn6LhwaG79iFLuFMJa/Fwk6kHZVj+jJBnaSb6tgV2WzP7poxvZr4hX9nK+HqRcIEk v5pB53Uw7HmAkFpha+nlvuRKBb9fmtEROW6tvTu6r4d0J5bEBwH8n589VQ72233rwBnI+KYW2D3pp rctETxZPmmNN6FvvnLEZ9zA5SKtpz+yCLMjHJkRCPC1RFyh89LzNkf/JOXAxqdw5+iGyG39gm12Yl cIf8cqwR7HjrraJ2ZYIsgQGnzkasc8RNrF2p1Ta1gH6+OQD3Kgn5cIv9imp/RZzgMAiS6XIkcl9zv awaTc2rxh03yjniff80g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMtx3-00FAcd-0E; Wed, 23 Feb 2022 15:53:13 +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 1nMttd-00F9Cv-Mc for linux-arm-kernel@lists.infradead.org; Wed, 23 Feb 2022 15:49:43 +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 0962E61913; 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-Disposition: inline In-Reply-To: <20220207152109.197566-41-broonie@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220223_074941_820510_B7AC6CAC X-CRM114-Status: GOOD ( 11.72 ) 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 03:21:09PM +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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel