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 F03E1C27C6E for ; Thu, 13 Jun 2024 14:35:19 +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=oPodw44CQyQGbN7VX4NCX+ptjDSVAPH9c/2+nOc7mk8=; b=3PNvucH6N/M2GokRQjf/ImFRin wMYWCRk0R80YTA/JB0VQ144ZEMCNvqmVJCepTTMjnL4n9fVzPdq7uUI1CczlKyl/NeDKOQMQZleyk WeFj6pOGo3xzKe9cBGEVWpo97pUMOhDsp3RL1V9fxHWKYyJ63rxCNpf05y930OfKtMliNOPKTS1s9 SQ1D57Ux4VxB0OC3WJ8vHz1DhMobyAEppuzwRYAbgMyIXipFR1lJ/w3FVChcaLTw6Xada1OwSaWkJ 71FpaEc3lpCvI7hREKId1E1oQvyVwOsxwc0h3kyYY30QIy+An05QLDhfU2eOOZYQfjs+Meu4mjuL5 f8hTmqOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHlXi-0000000GxkL-1VHr; Thu, 13 Jun 2024 14:35:10 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHlXe-0000000GxjK-1h6m for linux-riscv@lists.infradead.org; Thu, 13 Jun 2024 14:35:08 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 870D661B4A; Thu, 13 Jun 2024 14:35:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E9CEC32786; Thu, 13 Jun 2024 14:35:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718289305; bh=JaP7qDY1oFoFZ4n3ApB2MhPSSgkthi/B+6BCfNqzZXE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tpWSvufSz4/6eYuosODegqx8fYaQJdmhbXOMc9p3b5WQ/gfIGYomNolbhKVu0XyEs W2H0e+wQFo2NkfWXDAQ3LbTEDDBa2Alep0Fo++oTkFflawV4GEvJ9Wi9kiKocoOyXu fIs689QlI2/OOyKKFS+JJohZLTVF2vzDfltpGmegtsEUMHY9J9XtRXAhn/OQjlS7AN Mmo2SE5noT0cWKfvCzt91qNktweA/t/FLRttcxzlyVNGPmu4WlwLvnCi0XAQ/tlJrt 5M7dL1TY4lZA2RowibqCH1a4V1xRmTX8OuDJjQXYcjGojVOUCAUfkVjOtM3IOv6kmW rvvZiMkjp8hjg== Date: Thu, 13 Jun 2024 15:34:58 +0100 From: Conor Dooley To: Charlie Jenkins Cc: Rob Herring , Krzysztof Kozlowski , Paul Walmsley , Palmer Dabbelt , Albert Ou , Jisheng Zhang , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Jonathan Corbet , Shuah Khan , Guo Ren , Evan Green , Andy Chiu , Jessica Clarke , linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v2 02/13] dt-bindings: cpus: add a thead vlen register length property Message-ID: <20240613-gauntlet-starlet-2aedade31a06@spud> References: <20240610-xtheadvector-v2-0-97a48613ad64@rivosinc.com> <20240610-xtheadvector-v2-2-97a48613ad64@rivosinc.com> MIME-Version: 1.0 In-Reply-To: <20240610-xtheadvector-v2-2-97a48613ad64@rivosinc.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240613_073506_576099_177BFF6A X-CRM114-Status: GOOD ( 10.66 ) 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="===============6572580002886030251==" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org --===============6572580002886030251== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="AQap8GU9ejAJchW7" Content-Disposition: inline --AQap8GU9ejAJchW7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jun 10, 2024 at 03:56:39PM -0700, Charlie Jenkins wrote: > Add a property analogous to the vlenb CSR so that software can detect > the vector length of each CPU prior to it being brought online. > Currently software has to assume that the vector length read from the > boot CPU applies to all possible CPUs. On T-Head CPUs implementing > pre-ratification vector, reading the th.vlenb CSR may produce an illegal > instruction trap, so this property is required on such systems. >=20 > Signed-off-by: Charlie Jenkins Reviewed-by: Conor Dooley --AQap8GU9ejAJchW7 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZmsDkgAKCRB4tDGHoIJi 0u7xAP9LpPul5GSNB17Xr63YXTnJb87tSBlm5oBD3QK4jgiBbAD/WyZuDo4SvIBG T0dxQyzZxI2/QiuOT6A0fzXSpA+tgwY= =i6hR -----END PGP SIGNATURE----- --AQap8GU9ejAJchW7-- --===============6572580002886030251== 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 --===============6572580002886030251==--