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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT 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 34215C282CE for ; Tue, 4 Jun 2019 11:12:42 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id C510C24B62 for ; Tue, 4 Jun 2019 11:12:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C510C24B62 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 6EDEB4A4FA; Tue, 4 Jun 2019 07:12:40 -0400 (EDT) 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 67fVwbLvRr3y; Tue, 4 Jun 2019 07:12:39 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 205344A2E5; Tue, 4 Jun 2019 07:12:39 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 2449D4A2E5 for ; Tue, 4 Jun 2019 07:12:38 -0400 (EDT) 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 Cpi6TcmA8FuB for ; Tue, 4 Jun 2019 07:12:36 -0400 (EDT) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by mm01.cs.columbia.edu (Postfix) with ESMTP id A4E1940217 for ; Tue, 4 Jun 2019 07:12:36 -0400 (EDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0E61280D; Tue, 4 Jun 2019 04:12:36 -0700 (PDT) Received: from arrakis.emea.arm.com (arrakis.cambridge.arm.com [10.1.196.78]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EC0753F690; Tue, 4 Jun 2019 04:12:33 -0700 (PDT) Date: Tue, 4 Jun 2019 12:12:31 +0100 From: Catalin Marinas To: Julien Grall Subject: Re: [PATCH v5 2/3] arch/arm64: fpsimd: Introduce fpsimd_save_and_flush_cpu_state() and use it Message-ID: <20190604111230.GA5668@arrakis.emea.arm.com> References: <20190521172139.21277-1-julien.grall@arm.com> <20190521172139.21277-3-julien.grall@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190521172139.21277-3-julien.grall@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: ard.biesheuvel@linaro.org, marc.zyngier@arm.com, Dave.Martin@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org 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 Tue, May 21, 2019 at 06:21:38PM +0100, Julien Grall wrote: > The only external user of fpsimd_save() and fpsimd_flush_cpu_state() is > the KVM FPSIMD code. > > A following patch will introduce a mechanism to acquire owernship of the > FPSIMD/SVE context for performing context management operations. Rather > than having to export the new helpers to get/put the context, we can just > introduce a new function to combine fpsimd_save() and > fpsimd_flush_cpu_state(). > > This has also the advantage to remove any external call of fpsimd_save() > and fpsimd_flush_cpu_state(), so they can be turned static. > > Lastly, the new function can also be used in the PM notifier. > > Signed-off-by: Julien Grall > Reviewed-by: Dave Martin [...] > --- > arch/arm64/include/asm/fpsimd.h | 4 +--- > arch/arm64/kernel/fpsimd.c | 17 +++++++++++++---- > arch/arm64/kvm/fpsimd.c | 4 +--- > 3 files changed, 15 insertions(+), 10 deletions(-) Marc, since this touches KVM, can I get an ack on this patch? I plan to queue the series. Thanks. -- Catalin _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm