From mboxrd@z Thu Jan 1 00:00:00 1970 From: hch@infradead.org (Christoph Hellwig) Date: Sun, 4 Nov 2018 23:05:51 -0800 Subject: [RFC 0/2] RISC-V: A proposal to add vendor-specific code In-Reply-To: <20181105065807.GA1286@andestech.com> References: <20181101174857.du2zu4vnrhpu5asf@excalibur.cnev.de> <20181105065807.GA1286@andestech.com> Message-ID: <20181105070551.GA7274@infradead.org> To: linux-riscv@lists.infradead.org List-Id: linux-riscv.lists.infradead.org On Mon, Nov 05, 2018 at 02:58:07PM +0800, Vincent Chen wrote: > Many thanks for kinds of comments. I quickly synthesize the comments and > list them as below. > 1. The kernel image shall include all vendor-specific code. I fundamentally disagree with this? and think it should be the contrary. 1. The kernel shall support no vendor specific instructions whatsoever, period. 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=-4.0 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 D7E18C0044C for ; Mon, 5 Nov 2018 07:05:56 +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 9A15F204FD for ; Mon, 5 Nov 2018 07:05:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Jc5/DSrl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A15F204FD 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=RHudqWiN1pEyK0L0MK9Cqk224FSxajSzhwM9EuKqgPw=; b=Jc5/DSrlf9j0Cy gs+rzyukwEjJKfhTQEGxQzXRlzMOzUTNgP3+8HJQyWQROUdw95EdNv2Wch273w6x1fqZhXaEAzRCT UyNdtiJdIDayOGZkKWwGQg8FiOlTlC5ThvKnEXFPfDC6Buaas0yeP7xOMovT0l9xtnsuoCN8YbRMW DFF0NT6fynaw1L2S6B/gBNNTqx/wOCzVb8X9GtloIXkW570LSAi0KJuNtf899VSSXwCwVh6923AWj 7Op70g1ZrZMeH2vvCfISBBsua8Up+uW57tK0xRPZsKYg+q7k53Iw42O9WGwINRrQrv61TLCGHMqWN QXYxtXbqORfwDB06AqHA==; 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 1gJYxP-0003CR-Br; Mon, 05 Nov 2018 07:05:55 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1gJYxM-0003CI-2o; Mon, 05 Nov 2018 07:05:52 +0000 Date: Sun, 4 Nov 2018 23:05:51 -0800 From: Christoph Hellwig To: Vincent Chen Subject: Re: [RFC 0/2] RISC-V: A proposal to add vendor-specific code Message-ID: <20181105070551.GA7274@infradead.org> References: <20181101174857.du2zu4vnrhpu5asf@excalibur.cnev.de> <20181105065807.GA1286@andestech.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20181105065807.GA1286@andestech.com> 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: aou@eecs.berkeley.edu, arnd@arndb.de, alankao@andestech.com, greentime@andestech.com, palmer@sifive.com, linux-kernel@vger.kernel.org, zong@andestech.com, kito@andestech.com, linux-riscv@lists.infradead.org, deanbo422@gmail.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org Message-ID: <20181105070551.zc0_LT4tsrFjwu_g4tK1_V5gT7enu49E-oZePtEhk_I@z> T24gTW9uLCBOb3YgMDUsIDIwMTggYXQgMDI6NTg6MDdQTSArMDgwMCwgVmluY2VudCBDaGVuIHdy b3RlOgo+IE1hbnkgdGhhbmtzIGZvciBraW5kcyBvZiBjb21tZW50cy4gSSBxdWlja2x5IHN5bnRo ZXNpemUgdGhlIGNvbW1lbnRzIGFuZAo+IGxpc3QgdGhlbSBhcyBiZWxvdy4KPiAxLiBUaGUga2Vy bmVsIGltYWdlIHNoYWxsIGluY2x1ZGUgYWxsIHZlbmRvci1zcGVjaWZpYyBjb2RlLgoKSSBmdW5k YW1lbnRhbGx5IGRpc2FncmVlIHdpdGggdGhpc+KApiBhbmQgdGhpbmsgaXQgc2hvdWxkIGJlIHRo ZSBjb250cmFyeS4KCjEuIFRoZSBrZXJuZWwgc2hhbGwgc3VwcG9ydCBubyB2ZW5kb3Igc3BlY2lm aWMgaW5zdHJ1Y3Rpb25zIHdoYXRzb2V2ZXIsCnBlcmlvZC4KCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2IG1haWxpbmcgbGlzdApsaW51 eC1yaXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YK