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 612BEC05027 for ; Wed, 8 Feb 2023 16:07:35 +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=qHmfvA58pWloYAxW65Hma7IPh6zZvs4nUiyDFx3akjo=; b=coJXmk1L9ySzHzdf02RPQKiF+Y xTllkvdKwtkjigxfvNhKuvN3OJdzzAGy8jCUq8ujh123IPLSadx+/sFJxXNtmXRb98z49sQze9XDh OaU6aXl34HrrbulwxN7TsX1UDh/cruCDHpsPn9c0cL+mkXqKW5qk/Z/ulllkJDDeXuu5cetFs5sw9 imXHwJbjAeAxuOzwuHo2qh+dmL8RZSFreDb4n9NYqSXs/d7BWvc+cbMsG9O1uqRSw06IkXZl5VjyK iUxBByAgsetZ958W+Cbf70R4C2McZrWvnMBYDU0jADzHlr+kcqtURDguj8gPpgw/xaN2mt0Nz1luL YdGqnyrw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPmyl-00GCoC-MV; Wed, 08 Feb 2023 16:07:27 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPmyi-00GCnJ-0A for linux-riscv@lists.infradead.org; Wed, 08 Feb 2023 16:07:25 +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 dfw.source.kernel.org (Postfix) with ESMTPS id 665DC61707; Wed, 8 Feb 2023 16:07:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2599AC433D2; Wed, 8 Feb 2023 16:07:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675872442; bh=MizIyAawhq+F4R5MZOxbqg63Ufjh+lQp41X/NpeYSKU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fnQqmXGdoP54FZkz2PdyC8X+w9Wvu67kpBtBZ1Hz/VgJYehjuSfiktMuIfE5lm+ea nmV9+ZxRDHB01zTUxNzwO/bR3JRKze9/MmflKldUCYymloCu/2IujtJ1zNpN9i2zMA FcSpgaIz7L6IFkGQe7vQ/lOmhTiNXBH/Cm2i55T98aMlSHNFFgbvJZoQhaPGNUOMJM +20DOOP3nPXHxUOA+iojJ2FMQKbXpbDUhX96MxFbt46s4jHrUIB9Te+BmGyhdiWExY jNTvcakExUD0YU7kHlkhw2MCVYKysVDyYTmAIHnKAz7SffSa7HzVzdCcrEB6huTaba emuYFS5DOVqhQ== Date: Wed, 8 Feb 2023 16:07:19 +0000 From: Conor Dooley To: Palmer Dabbelt Cc: linux-riscv@lists.infradead.org Subject: Re: [PATCH] Documentation: RISC-V: Define Xlinuxs{s,m}aia Message-ID: References: <17CF439E-8933-4358-987B-85352DCAE4DD@kernel.org> MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230208_080724_142513_3FEF2C2B X-CRM114-Status: GOOD ( 34.95 ) 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="===============2640053131902350773==" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org --===============2640053131902350773== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="88L/RHZCr3RHUt/E" Content-Disposition: inline --88L/RHZCr3RHUt/E Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Feb 08, 2023 at 07:52:06AM -0800, Palmer Dabbelt wrote: > On Thu, 02 Feb 2023 23:32:47 PST (-0800), Conor Dooley wrote: > >=20 > >=20 > > On 3 February 2023 00:12:01 GMT, Palmer Dabbelt w= rote: > > > The AIA specification was only partially frozen, but provides no way = to > > > refer to the subset of behavior that has been frozen. > >=20 > > Ahh, wonderful. > >=20 > > > It seems like > > > there's not a whole lot of interest in the non-frozen behavior, so le= t's > > > just define an extension that only consists of the frozen behavior > >=20 > > >=20 > > > Signed-off-by: Palmer Dabbelt > > > --- > > > Documentation/riscv/extensions.rst | 10 ++++++++++ > > > 1 file changed, 10 insertions(+) > > > create mode 100644 Documentation/riscv/extensions.rst > > >=20 > > > diff --git a/Documentation/riscv/extensions.rst b/Documentation/riscv= /extensions.rst > > > new file mode 100644 > > > index 000000000000..c12bd3780520 > > > --- /dev/null > > > +++ b/Documentation/riscv/extensions.rst > > > @@ -0,0 +1,10 @@ > > > +.. SPDX-License-Identifier: GPL-2.0 > > > + > > > +Custom RISC-V Extensions > > > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D > > > + > > > +* The `Xlinuxsmaia` and `Xlinuxssaia` extensions coorespond to the s= tandard > >=20 > > Typo: correspond > >=20 > > > + `Smaia` and `Ssaia` extensions as defined by version 1.0-RC2 of th= e RISC-V > > > + Advanced Interrupt Architecture (AIA) specification, with the diff= erence that > > > + chapters 5 (Duo-PLIC) and 9 (IOMMU Support for MSIs to Virtual Mac= hines) do > > > + not exist. > >=20 > > Perhaps this document needs an intro section specifying what you expect= to go in it. > > Is this for any custom stuff, or just places where Linux has to work ar= ound RVI? >=20 > > From talking on the patchwork call, it sounds like 1.0.0-rc2 may not be > what's going to be ratified. If the plan really is to remove the draft > chapters when the spec is ratified, which does sometimes happen, then tho= se > might just solve the problem -- but sometimes things marked as drafts get > ratified, so we really just have no idea what the spec is going to be. I= t's > going to be pretty much imposible to get everyone on the same page until = we > can see the spec that's going to be ratified. So I think until that gets > sorted out, there's not really a whole lot more we can do here. >=20 > The other option would be to just properly commit to moving away from ISA > strings in the DT interface. We've sort of soft-forked already, but we're > at least trying to keep things looking similar. Properly forking would > really make everyone happy, as we'd no longer need to worry about the spe= cs > getting the details right. So reading between the lines (based on that patchwork call), this is a self-NAK for this patch and a NAK for adding the regular variants of these extensions to the ISA string in the first place. Perhaps it'd be worth noting that on [1] where the CC list is both broader and more specific? (Apologies if you already indended doing so there & I'm just preempting you). Thanks, Conor. 1 - https://lore.kernel.org/linux-riscv/CAK9=3DC2XAaB0GXh1tO060dWxZR2pSAVJh= ejUaa+W=3DQ+9nk_gYKA@mail.gmail.com/T/#ma126fa3fcd97af944a659ad544753020fac= 7b89d --88L/RHZCr3RHUt/E Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCY+PIngAKCRB4tDGHoIJi 0rROAQCGaV3AbzntGDwFOHUvMg5J9J/vodtoGfeah3dUErylXgD/Tl99zMmDOCcH gBgIOkCyZXML6g03iN6hnQjTkNXQCQk= =5jL2 -----END PGP SIGNATURE----- --88L/RHZCr3RHUt/E-- --===============2640053131902350773== 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 --===============2640053131902350773==--