From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756710Ab1H3Usp (ORCPT ); Tue, 30 Aug 2011 16:48:45 -0400 Received: from wolverine01.qualcomm.com ([199.106.114.254]:9721 "EHLO wolverine01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756677Ab1H3Uso (ORCPT ); Tue, 30 Aug 2011 16:48:44 -0400 X-IronPort-AV: E=McAfee;i="5400,1158,6454"; a="114101156" Date: Tue, 30 Aug 2011 15:48:33 -0500 From: "Linas Vepstas (Code Aurora)" To: Pekka Enberg Cc: Richard Kuo , linux-kernel@vger.kernel.org, linux-hexagon@vger.kernel.org, Arnd Bergmann Subject: Re: [patch v2 00/35] Hexagon: Add support for Qualcomm Hexagon architecture Message-ID: <20110830204833.GA7047@codeaurora.org> References: <20110830190729.923334292@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 30, 2011 at 11:18:24PM +0300, Pekka Enberg wrote: > On Tue, Aug 30, 2011 at 10:07 PM, Richard Kuo wrote: > > Thanks to everyone for their comments/feedback!  If I missed anything > > or there's something else that needs cleanup, please let me know. > > Are there any publicly available references for the architecture? > Googling for "Qualcomm Hexagon" doesn't seem to find anything > interesting. The main developer page is at https://developer.qualcomm.com/hexagon-processor The specs listed there include: |> Hexagon V2 Programmer’s Reference Manual (80-NB419-1) |> https://developer.qualcomm.com/file/5117/80-nb419-1ahexagonv2programmersref.pdf |> Describes the Hexagon V2 processor architecture and instruction set. |> |> Hexagon Application Binary Interface Specification (80-NB419-2) |> https://developer.qualcomm.com/file/5119/80-nb419-2ahexagonabispec.pdf |> Describes the application binary interface (ABI) for the Hexagon V2, V3, and V4 processor versions. Topics covered include the hardware representation of C data types, software stack configuration, parameter passing, register usage across function calls, and C++ exception handling. |> |> Hexagon Virtual Machine Specification (80-NB419-3) |> https://developer.qualcomm.com/file/5118/80-nb419-3ahexagonvirtualmachinespec.pdf |> Describes the Hexagon Virtual Machine (HVM), a software abstraction layer which enables multiple operating systems and other clients to execute concurrently on a single Hexagon processor, through the virtualization and partitioning of physical hardware resources. Access to these seems to require registration ... --linas -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.