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=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 8C9D0C43381 for ; Mon, 25 Mar 2019 16:23:33 +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 5D53E20828 for ; Mon, 25 Mar 2019 16:23:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="FE/6CN3h" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5D53E20828 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de 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:MIME-Version:Message-ID:In-Reply-To: Date:References:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=df6V1bMy6D0H9VegFto2rVKGPnI7PJ6B9BBJ35qgliY=; b=FE/6CN3hSR+EOa /aMeK3F2mYmQPIwdQvyzbJffPrkIqTJS6NzVy0k/dMFyf7BJtscLUPAS3eQcOvzZDOMDiZeNs7FdA FMiO810CVrvZ4qYeQipBiWSO3Y0cmOVwfhxpM2NUUhAnJMTP1Ua4X/tWgt9eusFnzDVkotxPM9aih 56py7R1akMWNzByAe/i6xgvLuxYaqcxnJrpyK9ruA3vZX3Ps/SsGwGQOCfhKGRNhlNT+8S4vcUNbq +V/x2x9p+h9cUGN8PITvs7CLOX5pgGmcMIUEq8ULuglkixoA/jVezVWYcS9PaSXXrWDNVWok9AGP0 HsCBXDWaqawhl5e3I3hg==; 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 1h8SNh-00084K-QY; Mon, 25 Mar 2019 16:23:25 +0000 Received: from mx2.suse.de ([195.135.220.15] helo=mx1.suse.de) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h8SNd-00083a-FM for linux-riscv@lists.infradead.org; Mon, 25 Mar 2019 16:23:24 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 67A98AF68; Mon, 25 Mar 2019 16:23:18 +0000 (UTC) From: Andreas Schwab To: Anup Patel Subject: Re: [PATCH 0/3] RISC-V SBI earlycon References: <20181204135507.3706-1-anup@brainfault.org> X-Yow: Here we are in America... when do we collect unemployment? Date: Mon, 25 Mar 2019 17:23:15 +0100 In-Reply-To: <20181204135507.3706-1-anup@brainfault.org> (Anup Patel's message of "Tue, 4 Dec 2018 19:25:04 +0530") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190325_092321_662963_EEF75A4C X-CRM114-Status: UNSURE ( 9.63 ) 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: Rob Herring , Albert Ou , Greg Kroah-Hartman , Palmer Dabbelt , linux-kernel@vger.kernel.org, Christoph Hellwig , Atish Patra , linux-serial@vger.kernel.org, Jiri Slaby , 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 Dez 04 2018, Anup Patel wrote: > This patchset adds RISC-V SBI earlycon and removes RISC-V EARLY_PRINTK. > > We should use earlycon over existing EARLY_PRINTK for SBI console because: > 1. It's a more generic way of implementing early console for debugging > 2. Current RISC-V EARLY_PRINTK is a compile-time option whereas earlycon > is enabled at run-time via kernel parameters. > 3. To use earlycon with SBI, we have to pass "earlycon=sbi" in kernel > parameters. If earlycon kernel parameter is not provided then kernel > boots much faster which is very useful in real-world RISC-V deployments. Why doesn't this earlycon disable itself when the real console kicks in? Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different." _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Schwab Subject: Re: [PATCH 0/3] RISC-V SBI earlycon Date: Mon, 25 Mar 2019 17:23:15 +0100 Message-ID: References: <20181204135507.3706-1-anup@brainfault.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20181204135507.3706-1-anup@brainfault.org> (Anup Patel's message of "Tue, 4 Dec 2018 19:25:04 +0530") Sender: linux-kernel-owner@vger.kernel.org To: Anup Patel Cc: Greg Kroah-Hartman , Jiri Slaby , Palmer Dabbelt , Albert Ou , Atish Patra , Christoph Hellwig , Rob Herring , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org List-Id: linux-serial@vger.kernel.org On Dez 04 2018, Anup Patel wrote: > This patchset adds RISC-V SBI earlycon and removes RISC-V EARLY_PRINTK. > > We should use earlycon over existing EARLY_PRINTK for SBI console because: > 1. It's a more generic way of implementing early console for debugging > 2. Current RISC-V EARLY_PRINTK is a compile-time option whereas earlycon > is enabled at run-time via kernel parameters. > 3. To use earlycon with SBI, we have to pass "earlycon=sbi" in kernel > parameters. If earlycon kernel parameter is not provided then kernel > boots much faster which is very useful in real-world RISC-V deployments. Why doesn't this earlycon disable itself when the real console kicks in? Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."