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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 B3839C10F11 for ; Wed, 10 Apr 2019 07:04:51 +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 7FCFB217D6 for ; Wed, 10 Apr 2019 07:04:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="AP7E2siz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7FCFB217D6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+infradead-linux-riscv=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=r3/w5PxHUMDf9PDdX2CVttpe2QTDcH+meIUrxa9qBOE=; b=AP7E2sizc6/si6 M35Go+nzkBHKjQ5KZMvOysZZucfJgybMNT1bEqKJtCUikbC3x/Owgm2c0reTKsoDhChXWlKaMljq7 77UgJO0+hWcusc5VGEqfx81xC2U9Gs3oJ8dj9UmbZS2DMMaTpO2bxmTkwRPMlwuCLKe/X6EJb0aAP pDg+f/7yAo725+VJ/JemP6TtwoOY+4LxTFwOJ6bRiq8XVnZT8bMursVs0wwCoExX85ecgt2t2Wkek l/Ycl3oD1Lu6b/e0WxjcR51NX9iUHp7RcsMiUL5X/mdZH+JobH2LxAGT1lk73DoBJSQvEQIPh11Do CN2eLyP7HpPuOAaUaHhg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hE7Hs-0005ip-HS; Wed, 10 Apr 2019 07:04:48 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1hE7Hq-0005gz-QK; Wed, 10 Apr 2019 07:04:46 +0000 Date: Wed, 10 Apr 2019 00:04:46 -0700 From: Christoph Hellwig To: Gary Guo Subject: Re: [PATCH v4 0/5] TLB/I$ flush cleanups and improvements Message-ID: <20190410070446.GA18678@infradead.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.2 (2017-12-15) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anup Patel , Palmer Dabbelt , Christoph Hellwig , Atish Patra , Albert Ou , opensbi@lists.infradead.org, "linux-riscv@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, Mar 27, 2019 at 12:41:11AM +0000, Gary Guo wrote: > From: Gary Guo > > This is the v4 of the general TLB/I$ flush improvement series. > I still have tlbi_method=ipi being the default as opposed to what > Atish suggests, as: > * There are still usage of BBL in the wild > * OpenSBI's support isn't made into stable yet. > * OpenSBI's support on the dev branch has some racing issues yet to resolve. Can you clarify the races? I know Anup had some FIFO-order commits in opensbi about a week ago, did they address you concerns? Anup, do you have performance numbers for the old opensbi vs your implementation of the optimized TLB flushing vs this patch? _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv