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=-3.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 CD0C5C282C0 for ; Thu, 24 Jan 2019 02:32:32 +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 91068218A1 for ; Thu, 24 Jan 2019 02:32:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="F4LN1c+7"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="YYldT0xR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 91068218A1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.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=YhZT2O/KAQ0++tM3Tu6NyF34HbHgOjb3xIWFi68uG7c=; b=F4LN1c+7tdnNHp U1zj25Wp8Rx7yfZsLzU7ZM96gmhn46vJZWvDvCBNMOv0Hr/UfOshEMfeLLGFcLTlrAlgkr+KxXhl1 cE9Cun+t3zz1kLkVuqPvgUxHZ0aKtqIUrmQ+F/JztVkwwlTt4YZpbsal2vAjnsY7ezXX0ue3bPnp1 oRcFn9lwhgMmXxzm5+/i7bRtrsi5A54Ofqra9O6k49G4KnPR26CpgrkCXXW0ahBAdEluH1uXE7utP J49JP5cQv58RsJD5vAGRYPLpom4RFJ61S0XnX6GxyGg4foGgFRtMrjbCllOKAxHi3RKmpoWRSB5Wo DsgGHsvV0naMWRigGM4g==; 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 1gmUog-0001qJ-1g; Thu, 24 Jan 2019 02:32:30 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gmUod-0001pK-Um for linux-riscv@lists.infradead.org; Thu, 24 Jan 2019 02:32:29 +0000 Received: from guoren-Inspiron-7460 (23.83.240.247.16clouds.com [23.83.240.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C86A82184C; Thu, 24 Jan 2019 02:32:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548297145; bh=xMNcOlbl+2Kuj9GNXWp0XWbM0a57TgxgtsrzT66ucgA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YYldT0xRjEgfd7VNgxT/sLYQJpyP51FdK5D+0XHF71b/C8WBF4MbWIv7/ycoGW2nh 8Sp8vsGNTclkpaqI/N8hWbG1et5ITbVdixdKPAnlqqskesgzQkuEqiOIB0VU+okWgy x8GM2ipLFj0f9ZrPa7uCgtUIEBs0nMXQTaVyO06k= Date: Thu, 24 Jan 2019 10:31:57 +0800 From: Guo Ren To: Palmer Dabbelt Subject: Re: [PATCH] riscv: fixup max_low_pfn with PFN_DOWN. Message-ID: <20190124023157.GA22934@guoren-Inspiron-7460> References: <20190116010738.GA4817@guoren-Inspiron-7460> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190123_183228_010319_72228B46 X-CRM114-Status: UNSURE ( 9.12 ) X-CRM114-Notice: Please train this message. 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: linux-arch@vger.kernel.org, aou@eecs.berkeley.edu, linux-kernel@vger.kernel.org, mao_han@c-sky.com, Christoph Hellwig , ren_guo@c-sky.com, 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, Jan 23, 2019 at 06:00:35PM -0800, Palmer Dabbelt wrote: > On Tue, 15 Jan 2019 17:07:38 PST (-0800), guoren@kernel.org wrote: > >Hi Christoph, > > > >I use PFN_DOWN() every where as possible and seems it's a habit > >problem. So let risc-v maintainer to choose "PFN_DOW()" or > >">> PAGE_SHIFT". > > > >Also the same with "end_of_DRAM & max_low_pfn". > > PFN_DOWN makes sense to me, as that's what we're trying to do here (round a > physical address down to page frame number). Am a I misunderstanding > something? > No, you got it :) Best Regards Guo Ren _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv