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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 8F3E6C282C0 for ; Fri, 25 Jan 2019 19:54:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 50C4B218B0 for ; Fri, 25 Jan 2019 19:54:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b="J6197mwU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726257AbfAYTy2 (ORCPT ); Fri, 25 Jan 2019 14:54:28 -0500 Received: from mail-it1-f195.google.com ([209.85.166.195]:36120 "EHLO mail-it1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725778AbfAYTy2 (ORCPT ); Fri, 25 Jan 2019 14:54:28 -0500 Received: by mail-it1-f195.google.com with SMTP id c9so11375765itj.1 for ; Fri, 25 Jan 2019 11:54:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:date:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=mBLhCc7Oplw3vOBLO9U5NUIwyMECCiggGQDjETNG+6A=; b=J6197mwU/cF5llcGfWFzDICbkVhkFOavpJSs22ObEkdddW1iXYrmXNsfo7BQQWaCxs KlPnp+3DTrzMGLCG5Jx2R1YmTQU/Ltq7QXLil8qvuVJ+InLqNxeaVDIsw0LvjTbr9v++ WVeZlXNCX29nYpJBmR2lOV/GfyzoBdLNurvKSJcBKJDjMQ3r4Uxb3hkc0X6xd7wKiMu5 EQ1yo+MPZQ2YRxcJPYvvhN1/uJtNp4LtEF1NEa7/nw5a1mBwv7JjQ0WPpOxebcGdjjLY eeUezU8sI8toIjOIWFRRB3qsDFNl82nBM6zUo/IEzMTFji0f2SzSBgfFhDPTKaZSMVE7 /7Wg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version; bh=mBLhCc7Oplw3vOBLO9U5NUIwyMECCiggGQDjETNG+6A=; b=QwcZvYwkaHGTGnTEgosIXIB+w26JD1G+KtdvzNhzoBOYwNhjFFvhEw6Z9UucgTsL+M ms5Ebj2H9fIYpNf2ZYTNy9g6tsbRSuBf45gofvWBVin+5esfpZugZhhC2Ugr7VczXmPV 9E2lNxOL7VofFLAD/Ro2BtLraFAXzpvFFWJ8KdqK39wLTmIBatqcoBuVe9kqxwHPYHuv 8ApZWsiftN2GxeSkHzO+FA2lptCLYCanNlBAIfVW52paC9PCB3jZ3078oC/3z25MYnYu dAXY+3OumZT5Ta3SZ+s+z+8DZ/xrFHUdfubV2sR8sQkw09v7H6anC3BUCozYKFpV6J9a 4Sfw== X-Gm-Message-State: AJcUukekMVCz8HsjCqno8cCBOWAb295w4m2jY6DanqptW6jufesf2aqa RCGShSZLI+8IGeSF8u+4YjHFOgE6d14= X-Google-Smtp-Source: ALg8bN7r/tnyf2sXz/ZdEvLheaoI8ljykDlaQe/taxPTdYqJILg6Vwxhpq7TEM8/4IEooYUgLs+TzA== X-Received: by 2002:a24:9686:: with SMTP id z128mr4860898itd.97.1548446067439; Fri, 25 Jan 2019 11:54:27 -0800 (PST) Received: from localhost (c-73-95-159-87.hsd1.co.comcast.net. [73.95.159.87]) by smtp.gmail.com with ESMTPSA id b25sm13052332itd.37.2019.01.25.11.54.26 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 25 Jan 2019 11:54:26 -0800 (PST) From: Paul Walmsley X-Google-Original-From: Paul Walmsley Date: Fri, 25 Jan 2019 11:54:25 -0800 (PST) To: =?ISO-8859-15?Q?Bj=F6rn_T=F6pel?= cc: linux-riscv@lists.infradead.org, palmer@sifive.com, davidlee@sifive.com, daniel@iogearbox.net, netdev@vger.kernel.org Subject: Re: [RFC PATCH 0/3] RV64G eBPF JIT In-Reply-To: <20190115083518.10149-1-bjorn.topel@gmail.com> Message-ID: References: <20190115083518.10149-1-bjorn.topel@gmail.com> User-Agent: Alpine 2.21.9999 (DEB 301 2018-08-15) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="8323329-1448834684-1548446065=:20864" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-1448834684-1548446065=:20864 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Hi, thanks for taking a shot at the eBPF JIT; this will be very useful. On Tue, 15 Jan 2019, Bj=C3=B6rn T=C3=B6pel wrote: > * I've added "HAVE_EFFICIENT_UNALIGNED_ACCESS" to > arch/riscv/Kconfig. Is this assumption correct? From=20a hardware point of view, this is not the case on the Linux-capable= =20 RISC-V ASICs that the public can buy right now (to the best of my=20 knowledge this is only the SiFive FU540). So I'd recommend not including this for now. - Paul --8323329-1448834684-1548446065=:20864--