From owner-freebsd-arm@freebsd.org Tue May 24 21:37:05 2016 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D8C3DB494E7 for ; Tue, 24 May 2016 21:37:05 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-211-172.reflexion.net [208.70.211.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 75DF713BF for ; Tue, 24 May 2016 21:37:04 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 4552 invoked from network); 24 May 2016 21:36:59 -0000 Received: from unknown (HELO mail-cs-01.app.dca.reflexion.local) (10.81.19.1) by 0 (rfx-qmail) with SMTP; 24 May 2016 21:36:59 -0000 Received: by mail-cs-01.app.dca.reflexion.local (Reflexion email security v7.90.3) with SMTP; Tue, 24 May 2016 17:37:40 -0400 (EDT) Received: (qmail 9141 invoked from network); 24 May 2016 21:36:00 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with SMTP; 24 May 2016 21:36:00 -0000 X-No-Relay: not in my network X-No-Relay: not in my network X-No-Relay: not in my network Received: from [192.168.1.8] (c-76-115-7-162.hsd1.or.comcast.net [76.115.7.162]) by iron2.pdx.net (Postfix) with ESMTPSA id 5D73C1C43D2; Tue, 24 May 2016 14:35:18 -0700 (PDT) From: Mark Millard Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: xorg broken on Beaglebone black revision 300438 Date: Tue, 24 May 2016 14:35:21 -0700 Message-Id: Cc: Ian Lepore To: freebsd-arm , otacilio.neto@bsd.com.br Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) X-Mailer: Apple Mail (2.3124) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 May 2016 21:37:05 -0000 Quoting from Otac=C3=ADlio Tue May 24 00:06:10 UTC 2016 and its = locore-v6.S changes: > - orr r7, #CPU_CONTROL_UNAL_ENABLE > - orr r7, #CPU_CONTROL_AFLT_ENABLE > + bic r7, #CPU_CONTROL_UNAL_ENABLE > + bic r7, #CPU_CONTROL_AFLT_ENABLE -r295256 (2016-Feb-14) changed from: bic r7, #CPU_CONTROL_UNAL_ENABLE to: orr r7, #CPU_CONTROL_UNAL_ENABLE in two places (moving it a few lines down for each example as well). So = this much of the proposed changes would be reverting the -r295256 = change. The check in comment indicates the bit is RAO/SBOP for armv7. = For armv6 the check in comment claims it controls armv5 compatible = alignment support. But: orr r7, #CPU_CONTROL_AFLT_ENABLE has been in locore-v6.S since the file's first checkin. So this change = to bic here be new. What is the FreeBSD intent for each of the two new settings for armv7? = armv6? =3D=3D=3D Mark Millard markmi@dsl-only.net