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 X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64ABFC33CB1 for ; Tue, 14 Jan 2020 11:56:32 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3763C24679 for ; Tue, 14 Jan 2020 11:56:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="FmnLLTZN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3763C24679 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject: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=uPtljRFqSLX/bAGYMCPhqP0JF0PBFici+TgWfxkQPgc=; b=FmnLLTZNhhcjZc nE7vJdvqYLDQOCs7Y39ncCcg5ib36OlHdbYwuPS4bvKQE7nZxEw/IPaIt/BD60B8I5PqTegW+oi7f rN+cHF4705PM/qvUVtWx4rOptH7RtQHwWVdnahu9ZbjAh0dGN4726Y2T77Z+UBTswejQwUUD8pp8e eac6qOTUI5MpYqoHpfMISYEqo/mlRU7WxKUEIZzVMNwo6tUb/XY40uRaqeowEih3mgFvNVoeMGgjb DzhJMTlWpYBcWjf77cFgvPq6duqR9+qJRxAcz9XBFaEAL/sujSDqw8s0M3wZRLb2TBzxGyRQ/6vbK aX9TnVOH1gihzhhKYzQw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1irKoB-0002D3-B3; Tue, 14 Jan 2020 11:56:31 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1irKo3-00025J-DQ for linux-arm-kernel@lists.infradead.org; Tue, 14 Jan 2020 11:56:24 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A25AA1435; Tue, 14 Jan 2020 03:56:20 -0800 (PST) Received: from mbp (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9B3433F6C4; Tue, 14 Jan 2020 03:56:18 -0800 (PST) Date: Tue, 14 Jan 2020 11:56:14 +0000 From: Catalin Marinas To: Suzuki K Poulose Subject: Re: [PATCH v3 2/7] arm64: fpsimd: Make sure SVE setup is complete before SIMD is used Message-ID: <20200114115613.GC2289@mbp> References: <20200113233023.928028-1-suzuki.poulose@arm.com> <20200113233023.928028-3-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200113233023.928028-3-suzuki.poulose@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200114_035623_516322_F3D8F131 X-CRM114-Status: UNSURE ( 8.67 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, ard.biesheuvel@linaro.org, maz@kernel.org, linux-kernel@vger.kernel.org, will@kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jan 13, 2020 at 11:30:18PM +0000, Suzuki K Poulose wrote: > In-kernel users of NEON rely on may_use_simd() to check if the SIMD > can be used. However, we must initialize the SVE before SIMD can > be used. Add a sanity check to make sure that we have completed the > SVE setup before anyone uses the SIMD. > > Cc: Ard Biesheuvel > Cc: Mark Rutland > Cc: Will Deacon > Cc: Catalin Marinas > Signed-off-by: Suzuki K Poulose Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel