Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161125AbWLVJ5e (ORCPT ); Fri, 22 Dec 2006 04:57:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161124AbWLVJ5e (ORCPT ); Fri, 22 Dec 2006 04:57:34 -0500 Received: from ug-out-1314.google.com ([66.249.92.171]:22470 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161116AbWLVJ5d (ORCPT ); Fri, 22 Dec 2006 04:57:33 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=bVh1RKTpITZi0UocgHXZ/ENDO6bsT/GYp7OTaCccgpygNUBFJrFEW3n2J1CyuR7wyYCdJes06DXtrHYLBBIS+iWUoNbFnGu4aAurfRHoybHYm9JDhWvCr4q+IwHs15lM0mKruN/g6RyjDPKF7oH09JlUjkiOGl7QVL2VJXtEfeg= Message-ID: Date: Fri, 22 Dec 2006 10:57:31 +0100 From: "Franck Bui-Huu" To: "Jaya Kumar" Subject: Re: [RFC 2.6.19 1/1] fbdev,mm: hecuba/E-Ink fbdev driver v2 Cc: linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-mm@kvack.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200612111046.kBBAkV8Y029087@localhost.localdomain> <457D895D.4010500@innova-card.com> <45a44e480612111554j1450f35ub4d9932e5cd32d4@mail.gmail.com> <45a44e480612162025n5d7c77bdkc825e94f1fb37904@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 729 Lines: 18 On 12/20/06, Franck Bui-Huu wrote: > - when mmaping your frame buffer , be sure that the virtual > address returned by mmap() to the application shares the > same cache lines than the ones the kernel > is using. Well thinking more about it, this wouldn't work for all cache types. For example, if your cache is not a direct maped one, this workaround won't work. So this is definitely not a portable solution. -- Franck - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/