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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 935DEC31E40 for ; Mon, 12 Aug 2019 15:03:55 +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 67E0A208C2 for ; Mon, 12 Aug 2019 15:03:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="OjDIQD33" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 67E0A208C2 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=XodlDprNiF0w1AT/SOPStIUcI2CKShZyJD+JVPNzqUU=; b=OjDIQD332/L5n9 nSqeT+8/aTHP30noTEAWXMWYWicbliJ/hLuMOGt18VnVI0tNQ09u2SCInzKU86kVlRT3sga0yV2kZ KcZSCGz4nDBZlb6Xn+TOzBz8kfI8E2l2/5vGgrf+fFrUTVcHoIhnJeRrHoN1PA8Pt5c+37xudUBto w+GHjVYS+FEZfVFAgRmtR/k2+jb178VXaPdzle3//9gxpg9WX5xyy1Mt0HIghDN1OCqRFvSJn5Kxq +wqJ4ZzFYi2NuCzomkG72EX2uM6Mp8D33QxVC1SeeNp0HegbtpgTqWBySAUih/0VTqs+pSCKymjNr 64YERbuDGvAlEC/jSi+w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hxBrT-0006Oa-A1; Mon, 12 Aug 2019 15:03:51 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1hxBrQ-0006NF-Tz; Mon, 12 Aug 2019 15:03:48 +0000 Date: Mon, 12 Aug 2019 08:03:48 -0700 From: Christoph Hellwig To: Charles Papon Subject: Re: [PATCH] riscv: kbuild: drop CONFIG_RISCV_ISA_C Message-ID: <20190812150348.GH26897@infradead.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.4 (2019-03-13) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Atish Patra , linux-riscv , Bin Meng , linux-kernel , Paul Walmsley 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 Thu, Aug 08, 2019 at 02:18:53PM +0200, Charles Papon wrote: > Please do not drop it. > > Compressed instruction extension has some specific overhead in small > RISC-V FPGA softcore, especialy in the ones which can't implement the > register file read in a asynchronous manner because of the FPGA > technology. > What are reasons to enforce RVC ? Because it it the unix platform baseline as stated in the patch. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv