From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id A49071A055C for ; Fri, 13 Jun 2014 07:57:54 +1000 (EST) Message-ID: <1402610228.14780.84.camel@pasglop> Subject: Re: power and percpu: Could we move the paca into the percpu area? From: Benjamin Herrenschmidt To: Segher Boessenkool Date: Fri, 13 Jun 2014 07:57:08 +1000 In-Reply-To: <20140612122639.GA17838@gate.crashing.org> References: <1402518131.14780.60.camel@pasglop> <20140611210351.GA7155@visitor2.iram.es> <20140612122639.GA17838@gate.crashing.org> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Cc: Tejun Heo , linuxppc-dev@lists.ozlabs.org, Christoph Lameter List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2014-06-12 at 07:26 -0500, Segher Boessenkool wrote: > But, indeed, it does look like GCC doesn't use it. It seems to me > that > some ABI forbade userland (or non-libraries or whatever) from using > it. > I'll see what I can find out. I can still use -ffixed-cr5 for safety no ? Cheers, Ben.