From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: Correct use of Arm related names Date: Wed, 10 Oct 2018 10:48:51 +0200 Message-ID: <4526903.3jovrJyB05@xps> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: "dev@dpdk.org" , "Jacob, Jerin" , "Gavin Hu (Arm Technology China)" , Hemant Agrawal , "debayang. qdt" To: Honnappa Nagarahalli Return-path: Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) by dpdk.org (Postfix) with ESMTP id E0E7A1B46D for ; Wed, 10 Oct 2018 10:48:57 +0200 (CEST) In-Reply-To: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 10/10/2018 06:37, Honnappa Nagarahalli: > Hi, > This email was triggered by a request to change ARM to Arm in the dpdk.org webpage. I went down the path of finding out the correct names to use. There has not been consistency in using these names across all other projects. So, the recommendation I have got is, 'choose something and use it consistently' (within the DPDK project). Following are my recommendations (please notice the lower/upper case of the letters): > > Architectural State: > aarch64/arm64 - referring to aarch64 state - recommended: aarch64 > aarch32/arm32 - referring to aarch32 state - recommended: aarch32 (arm32 might create confusion with armv7) > > ISA: > armv8.x > armv7.x > > Any reference to Company name: > Arm > > So, everything is lower case except when referring to the company (for ex: Copyright) name. > > Please let me know if you have any questions. There is still confusion about when to use the arch name (aarch64) or the ISA (armv8)? For instance, the lib/librte_eal/common/include/arch/arm/ directory has files split by 32/64 arch. I thought it would make more sense to have different low-level routines depending of the ISA. Is it possible to have armv7 in aarch64? Is it possible to have armv8 in aarch32?