From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-426994-1521123521-2-13022292115219459416 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-usb-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521123520; b=dSiANrqW6eQahg4aEIvxBivRY4uXqyhQLlhJPW3jbkzknK0 xmDLGjKwbgRkQaorqqVrUE2l+sjEpWdIspL6CNKpEO3+auxN2yK7ZDq91BhGiU/T WP4SLEzS8B/qpqRnDhf2pqOklmABc4yuGxlo3/BGxXU54XtP5RnQcUrc5h5Xm+6P oLcuABrSQK38/Po7aczuyqaoK22aeKhe4Qabs+vv7HKlNHoNXZ3OwdPjAJxNdpiX njPO6RUXbDeHvEoH1bvnRyqpFpASZSJ2CiR2zr7EjgsDdhsK6gwVBz/j2G09yJun UGD/WAC9ta+NIpoIvrrmboJ4JmN8rKEQpV1rqhw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to:sender :list-id; s=arctest; t=1521123520; bh=mPWVwe5Bn2pfMZqzDXrxp3z++r Ezvzki8KpRgub6SCU=; b=Jy5cY8WmV+B5s46vdomrn1Jggc5yDMPaab96kUX04i nbf8KI6AC/AuwPjZBR+l2MCSoF40i3TA8KyGVa75ax7s6nc2R91HASQgEJK7CkOG KxVXL6LPM9aA1maL9GH5wKl4S0m5VirdbLN9K9gB4wDWHGaSVehQC27Y73KJZsRl jU1IgRMK+Rx3aYhOrNvJPsIKc6C4WUS/+Kb9ojx0ZH/bqSFTZv/yQ7IvGigK7dYQ 8VVE9d5b6yFBJb8i7QQitB9nYq+iWwomtIDR04vMSdGSS+sG1826gNF/Y5DP70ZV +puI+XenmsAArSgkGvALNcexmDmSGvAMim2WL2S93kDw== ARC-Authentication-Results: i=1; mx2.messagingengine.com; arc=none (no signatures found); dkim=fail (message has been altered; 2048-bit rsa key sha256) header.d=infradead.org header.i=@infradead.org header.b=EXhRXPFP x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=bombadil.20170209; dmarc=none (p=none,has-list-id=yes,d=none) header.from=infradead.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-100 state=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=infradead.org header.result=pass header_is_org_domain=yes Authentication-Results: mx2.messagingengine.com; arc=none (no signatures found); dkim=fail (message has been altered; 2048-bit rsa key sha256) header.d=infradead.org header.i=@infradead.org header.b=EXhRXPFP x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=bombadil.20170209; dmarc=none (p=none,has-list-id=yes,d=none) header.from=infradead.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-100 state=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=infradead.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752232AbeCOOR7 (ORCPT ); Thu, 15 Mar 2018 10:17:59 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:49832 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751551AbeCOORx (ORCPT ); Thu, 15 Mar 2018 10:17:53 -0400 Date: Thu, 15 Mar 2018 07:17:49 -0700 From: Christoph Hellwig To: Arnd Bergmann Cc: Hannes Reinecke , David Howells , linux-arch , Linux Kernel Mailing List , "open list:DOCUMENTATION" , linux-block , IDE-ML , "open list:HID CORE LAYER" , Networking , linux-wireless , linux-pwm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi , linux-usb@vger.kernel.org, dri-devel , linux-fbdev@vger.kernel.org, linux-watchdog@vger.kernel.org, Linux FS-devel Mailing List , Linux-MM Subject: Re: [PATCH 00/16] remove eight obsolete architectures Message-ID: <20180315141749.GA27100@infradead.org> References: <20180314143529.1456168-1-arnd@arndb.de> <2929.1521106970@warthog.procyon.org.uk> <6c9d075c-d7a8-72a5-9b2d-af1feaa06c6c@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.2 (2017-12-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-usb-owner@vger.kernel.org X-Mailing-List: linux-usb@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Thu, Mar 15, 2018 at 11:42:25AM +0100, Arnd Bergmann wrote: > Is anyone producing a chip that includes enough of the Privileged ISA spec > to have things like system calls, but not the MMU parts? Various SiFive SOCs seem to support M and U mode, but no S mode or iommu. That should be enough for nommu Linux running in M mode if someone cares enough to actually port it.