From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Subject: Re: Build error in torvalds kernel 3.11 for omap2plus Date: Mon, 09 Sep 2013 05:00:42 -0700 Message-ID: <522DB86A.8010207@roeck-us.net> References: <20130908090206.GK25647@n2100.arm.linux.org.uk> <522CB0DE.2010102@roeck-us.net> <20130909105115.GL25647@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.active-venture.com ([67.228.131.205]:53827 "EHLO mail.active-venture.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752554Ab3IIMAo (ORCPT ); Mon, 9 Sep 2013 08:00:44 -0400 In-Reply-To: <20130909105115.GL25647@n2100.arm.linux.org.uk> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Russell King - ARM Linux Cc: Nicolas Pitre , Anil Kumar , "linux-omap@vger.kernel.org" , linux-arm , Tony Lindgren , "devicetree-discuss@lists.ozlabs.org" , Benoit Cousson On 09/09/2013 03:51 AM, Russell King - ARM Linux wrote: > On Sun, Sep 08, 2013 at 10:16:14AM -0700, Guenter Roeck wrote: >> Since we are at it: >> >> Build reference: v3.11-7887-gb409624 >> >> Building arm:defconfig ... passed >> Building arm:allmodconfig ... failed >> -------------- >> Error log: >> arch/arm/mach-cns3xxx/pcie.c: In function 'cns3xxx_pcie_hw_init': >> arch/arm/mach-cns3xxx/pcie.c:350:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=] >> arch/arm/kernel/return_address.c:63:2: warning: #warning "TODO: return_address should use unwind tables" [-Wcpp] >> arch/arm/kernel/return_address.c:63:2: warning: #warning "TODO: return_address should use unwind tables" [-Wcpp] >> /tmp/cce439dZ.s: Assembler messages: >> /tmp/cce439dZ.s:506: Error: selected processor does not support ARM mode `isb ' >> /tmp/cce439dZ.s:512: Error: selected processor does not support ARM mode `isb ' >> /tmp/cce439dZ.s:513: Error: selected processor does not support ARM mode `dsb ' >> /tmp/cce439dZ.s:583: Error: selected processor does not support ARM mode `isb ' >> /tmp/cce439dZ.s:589: Error: selected processor does not support ARM mode `isb ' >> /tmp/cce439dZ.s:590: Error: selected processor does not support ARM mode `dsb ' >> make[1]: *** [arch/arm/mach-vexpress/dcscb.o] Error 1 >> make: *** [arch/arm/mach-vexpress] Error 2 >> make: *** Waiting for unfinished jobs.... >> -------------- >> >> Any solution for this one ? omap2plus passes for me. >> >> gcc version used is "arm-poky-linux-gnueabi-gcc (GCC) 4.7.2" from poky 1.3. > > That's due to: > > commit e8f9bb1bd6bb93fff773345cc54c42585e0e3ece > Author: Nicolas Pitre > Date: Tue Jul 16 20:59:53 2013 -0400 > > ARM: vexpress/dcscb: fix cache disabling sequences > > Unlike real A15/A7's, the RTSM simulation doesn't appear to hit the > cache when the CTRL.C bit is cleared. Let's ensure there is no memory > access within the disable and flush cache sequence, including to the > stack. > > Signed-off-by: Nicolas Pitre > > which introduces some 'isb' and 'dsb' instructions which are not > available on ARMv6 CPUs - however, their 'mcr' equivalents are. > > Either dcscb needs to be built with an -march=armv7 override, or > they need to use the mcr equivalent instructions. > Well, I hope it will get fixed one way or another. I don't know enough about arm to fix it myself. Guenter