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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 DB6F9C19759 for ; Wed, 7 Aug 2019 06:51:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A6C8D21BF6 for ; Wed, 7 Aug 2019 06:51:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="l243GXzH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727316AbfHGGvU (ORCPT ); Wed, 7 Aug 2019 02:51:20 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:39734 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727173AbfHGGvU (ORCPT ); Wed, 7 Aug 2019 02:51:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=Qd4/AdtNUI7cbAZE/FUvXQ3ioTcAsFiO76sg1gler2A=; b=l243GXzHr/c7gKuu7GBJ0VpvX uZZVn3OdCqjioHlawxkUeIjySIm7dyJmI66hYv2H3JlXpIzn5ISMGUS9PjdiV1oFhNTpGlQXWKVDX DDGwTva4Cb3GYv3enbI3ECTEZ5JCio1PsomsgaSAiE4xa8hQdjlT1F4HW2tPgonGm5EaGDVyvzwzb cpBxxQSb0gi3j/SG2b1RlHYJ2RBwt9vcWPM2s4XudCXtDGeMaoETLFnQRkIHXmsitcLZUzUCIi4xa 0OGf9/2kxWzdeeKG4N5loNPBTkSJKA2DY0kA7miJCd3lrHmHZZqJ4GxCr8DQJn/gVYTEboVjafVXR th3YqXtCw==; Received: from hch by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1hvFn5-0003Gj-MH; Wed, 07 Aug 2019 06:51:19 +0000 Date: Tue, 6 Aug 2019 23:51:19 -0700 From: Christoph Hellwig To: Atish Patra Cc: linux-kernel@vger.kernel.org, Mark Rutland , devicetree@vger.kernel.org, Albert Ou , Daniel Lezcano , Alan Kao , Greg Kroah-Hartman , Anup Patel , Johan Hovold , Rob Herring , Palmer Dabbelt , Paul Walmsley , linux-riscv@lists.infradead.org, Enrico Weigelt , Thomas Gleixner Subject: Re: [PATCH v4 2/4] RISC-V: Add riscv_isa reprensenting ISA features common across CPUs Message-ID: <20190807065119.GA7825@infradead.org> References: <20190803042723.7163-1-atish.patra@wdc.com> <20190803042723.7163-3-atish.patra@wdc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190803042723.7163-3-atish.patra@wdc.com> User-Agent: Mutt/1.11.4 (2019-03-13) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 02, 2019 at 09:27:21PM -0700, Atish Patra wrote: > From: Anup Patel > > This patch adds riscv_isa integer to represent ISA features common > across all CPUs. The riscv_isa is not same as elf_hwcap because > elf_hwcap will only have ISA features relevant for user-space apps > whereas riscv_isa will have ISA features relevant to both kernel > and user-space apps. > > One of the use case is KVM hypervisor where riscv_isa will be used > to do following operations: Please add this to the kvm series. Right now this is just dead code.