From owner-freebsd-arm@freebsd.org Tue May 24 21:46:42 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 4BF4EB49614 for ; Tue, 24 May 2016 21:46:42 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-211-185.reflexion.net [208.70.211.185]) (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 01736183A for ; Tue, 24 May 2016 21:46:41 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 11920 invoked from network); 24 May 2016 21:47:10 -0000 Received: from unknown (HELO mail-cs-02.app.dca.reflexion.local) (10.81.19.2) by 0 (rfx-qmail) with SMTP; 24 May 2016 21:47:10 -0000 Received: by mail-cs-02.app.dca.reflexion.local (Reflexion email security v7.90.3) with SMTP; Tue, 24 May 2016 17:46:38 -0400 (EDT) Received: (qmail 23708 invoked from network); 24 May 2016 21:46:38 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with SMTP; 24 May 2016 21:46:38 -0000 X-No-Relay: not in my network 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 9B0F91C43D6; Tue, 24 May 2016 14:46:35 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Fwd: xorg broken on Beaglebone black revision 300438 From: Mark Millard Date: Tue, 24 May 2016 14:46:39 -0700 Cc: otacilio.neto@bsd.com.br, Ian Lepore Content-Transfer-Encoding: quoted-printable Message-Id: <7700894B-58F5-4EAE-89BC-B2CEC3AFA7EF@dsl-only.net> References: To: mmel@freebsd.org, freebsd-arm 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 21:46:42 -0000 I forgot to CC mmel for the below reply to: https://lists.freebsd.org/pipermail/freebsd-arm/2016-May/013910.html and https://lists.freebsd.org/pipermail/freebsd-arm/2016-May/013911.html mmel is listed for the -r295256 that I referenced. =3D=3D=3D Mark Millard markmi at dsl-only.net Begin forwarded message: > From: Mark Millard > Subject: Re: xorg broken on Beaglebone black revision 300438 > Date: May 24, 2016 at 2:35:21 PM PDT > To: freebsd-arm , otacilio.neto at = bsd.com.br > Cc: Ian Lepore >=20 > Quoting from Otac=C3=ADlio Tue May 24 00:06:10 UTC 2016 and its = locore-v6.S changes: >=20 >> - orr r7, #CPU_CONTROL_UNAL_ENABLE >> - orr r7, #CPU_CONTROL_AFLT_ENABLE >> + bic r7, #CPU_CONTROL_UNAL_ENABLE >> + bic r7, #CPU_CONTROL_AFLT_ENABLE >=20 > -r295256 (2016-Feb-14) changed from: >=20 > bic r7, #CPU_CONTROL_UNAL_ENABLE >=20 > to: >=20 > orr r7, #CPU_CONTROL_UNAL_ENABLE >=20 > 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. >=20 > But: >=20 > orr r7, #CPU_CONTROL_AFLT_ENABLE >=20 > has been in locore-v6.S since the file's first checkin. So this change = to bic here be new. >=20 > What is the FreeBSD intent for each of the two new settings for armv7? = armv6? >=20 >=20 > =3D=3D=3D > Mark Millard > markmi at dsl-only.net >=20 >=20