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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1C87BC61DA4 for ; Thu, 9 Feb 2023 23:31:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=AUXZS+vTaSEz+HPbAYy5LJSSsBu4Ft75sLAR2JlERSM=; b=Ri/TCbuoCQCW58Ca+/I+nwHftk 6LrdjR2R+eWKl/qksL43F1VQb04LjsXxh7wBw9/93RiuVn/pFYC2542Sf+0plYPW09uEc4pkrrUsk DKfBG9OUesN1w8e5mpzu7E2a4HkasiSOUf2OP8CFDIrg/RKD25CS3cncQoynSQnIP6XBgs/2FLih2 Pkt1cRPTgcGbgz56ZC4AEJhrQjeTD90NQWCtA8msgsSp9LRrHniaVM0wH1mpdj/YhBcor13+sr8NB NM/mqKuz6N+9gR+Oy4/7eKtTI2gw7kJ7yPQqfqr2UIaQYXitShqWRWpf1q/jFWkahh7HemSX6I/OL Mg4F7Jkg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pQGO9-003XCp-4J; Thu, 09 Feb 2023 23:31:37 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pQGO6-003XB0-2x; Thu, 09 Feb 2023 23:31:35 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 77097B821A7; Thu, 9 Feb 2023 23:31:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5E0F6C433EF; Thu, 9 Feb 2023 23:31:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675985491; bh=O69LuhcZctd57x4lhJFdI4eIyFQSa4iSqPKotAdsMPs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ufFIYrT9UvLFb9qyPXt821NOnhRi4wl83XuBhkKVoT3uRaTvaXkMYdTvXuBlRiVCH lL4Vxuewop0JrgU9U1VGZZ59u8rjcYnZB007pA+WN9gR7juX7RHjo6rZSxIvz78jWc bWyP1tL9I1gNbOJ8fL1pkm1qYlIZmwEKboE5b8u3CnWaQcwtN7MYEJf3DqtTXwjo0f YgDAFykZxjYhC1sTpsyozbKJ40tQajhzMCx9uMoL4d/1oEFrs3y8cY86s9fCB+8Svm IFTjkcK9wM14PFlw1Ssh/zSpN5C/Zc5tmp/mAoOSV2cmPkqs2u1hcVwdZ8B79sswW6 x7IVYN87AT3VA== Date: Thu, 9 Feb 2023 23:31:24 +0000 From: Conor Dooley To: Anup Patel Cc: Conor Dooley , Atish Patra , Stephano Cetola , Jeff Scheel , Palmer Dabbelt , pbonzini@redhat.com, Paul Walmsley , ajones@ventanamicro.com, anup@brainfault.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/7] RISC-V: Detect AIA CSRs from ISA string Message-ID: References: <20230128072737.2995881-3-apatel@ventanamicro.com> MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230209_153134_468905_C908C9FD X-CRM114-Status: GOOD ( 24.81 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5652336093185360750==" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org --===============5652336093185360750== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Vv2d+yOSyM4AvbL5" Content-Disposition: inline --Vv2d+yOSyM4AvbL5 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hey all, Just circling back to this one, since the reply from Palmer was to another thread with a much smaller CC list. On Wed, Feb 08, 2023 at 08:27:23PM +0530, Anup Patel wrote: > On Wed, Feb 8, 2023 at 6:27 PM Conor Dooley = wrote: > > On Wed, Feb 08, 2023 at 09:24:28AM +0530, Anup Patel wrote: > > > The presence of S*aia in ISA string only implies that AIA extended > > > local interrupt CSRs are implemented by the underlying RISC-V > > > implementation. > > > > Would you mind linking to where this is documented & explaining in your > > commit message why it is okay operate on the basis of s*aia in the ISA > > string only mandates the presence of the CSRs and nothing more. > > > > I think when I was reading it last night, I saw some commentary in this > > vein in Section 1.6 of the rc2 spec. Although IIRC it noted changes in > > interrupt behaviour there too, so I'm not sure if that section is what = you > > are referring to here. > > > > Perhaps this is all just a good argument for providing more information > > in commit messages ;) >=20 > Sure, I am anyway going to send v3 after rebase so I will cite the > Section 1.6 of AIA spec in the commit description. We had a nice conversation about this on during the weekly patchwork sync call :) The end result of that one was "inconclusive" and the outcome appears to be that we will wait until the entire spec is frozen before doing anything here. Palmer left a comment in response to another thread to that effect: https://lore.kernel.org/linux-riscv/mhng-474f7ecd-65b8-4cfa-8b75-e51b896cc5= 8e@palmer-ri-x1c9/ Cheers, Conor. --Vv2d+yOSyM4AvbL5 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCY+WCTAAKCRB4tDGHoIJi 0q6sAP49zNucepjSQABZqre91PwzpDcltIfXd1XLoWl0qDu0CQD7BAx2at0D4LVx XsqZPYOLysSc280F7lsVo8sayoX3Egs= =wLGy -----END PGP SIGNATURE----- --Vv2d+yOSyM4AvbL5-- --===============5652336093185360750== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv --===============5652336093185360750==--