From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vineet Gupta Subject: Re: [PATCH v2 00/76] Synopsys ARC Linux kernel Port Date: Mon, 21 Jan 2013 11:20:29 +0530 Message-ID: <50FCD725.80904@synopsys.com> References: <1358511930-7424-1-git-send-email-vgupta@synopsys.com> <50FB8B71.6050207@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from kiruna.synopsys.com ([198.182.44.80]:42286 "EHLO kiruna.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750848Ab3AUFup (ORCPT ); Mon, 21 Jan 2013 00:50:45 -0500 In-Reply-To: <50FB8B71.6050207@zytor.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: "H. Peter Anvin" Cc: Ralf Baechle , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, arnd@arndb.de On Sunday 20 January 2013 11:45 AM, H. Peter Anvin wrote: > On 01/18/2013 04:24 AM, Vineet Gupta wrote: >> This patchset based off-of 3.8-rc4, adds the Linux kernel port to ARC700 >> processor family (750D and 770D) from Synopsys. I would be greatful for >> further review and feedback. > > One thing: ARC, as I understand it, is a whole family of architectures, which > mostly have in common their origin at Synopsys. ARC has had a long history - as a startup in 90's. There used to be ARCTanget Instruction set (and cores A4,A5... based on that) which 10 years ago got deprecated by current ARCompact ISA (600 / 700 cores). So yes it is a family of architectures - but all we care about is the ARCompact and 600/700 at Synopsys. However, I don't think there were sub-architectures or forks which floated around. The MIPS "ARC" seems to be some sort of firmware standard, but not related to ARC: Ralf would you care to shed some light ? I don't know of any ARC arch other than these. > Can we make this arch/arc700 > since that is what it is? > > -hpa > As of now yes, but in near future we may have a new Instruction Set and cores based on that - so it will be better if we keep a non specific name. Thx, -Vineet