From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 25 Aug 2014 19:16:11 +0200 (CEST) Received: from localhost.localdomain ([127.0.0.1]:54256 "EHLO linux-mips.org" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S27006754AbaHYRQJaOZEL (ORCPT ); Mon, 25 Aug 2014 19:16:09 +0200 Received: from scotty.linux-mips.net (localhost.localdomain [127.0.0.1]) by scotty.linux-mips.net (8.14.8/8.14.8) with ESMTP id s7PHG35B002603; Mon, 25 Aug 2014 19:16:04 +0200 Received: (from ralf@localhost) by scotty.linux-mips.net (8.14.8/8.14.8/Submit) id s7PHG0Vx002602; Mon, 25 Aug 2014 19:16:00 +0200 Date: Mon, 25 Aug 2014 19:16:00 +0200 From: Ralf Baechle To: Max Filippov Cc: linux-xtensa@linux-xtensa.org, Chris Zankel , Marc Gauthier , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, David Rientjes , Andrew Morton , Leonid Yegoshin , Steven Hill Subject: Re: [PATCH v4 0/2] mm/highmem: make kmap cache coloring aware Message-ID: <20140825171600.GH25892@linux-mips.org> References: <1406941899-19932-1-git-send-email-jcmvbkbc@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406941899-19932-1-git-send-email-jcmvbkbc@gmail.com> User-Agent: Mutt/1.5.23 (2014-03-12) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 42231 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On Sat, Aug 02, 2014 at 05:11:37AM +0400, Max Filippov wrote: > this series adds mapping color control to the generic kmap code, allowing > architectures with aliasing VIPT cache to use high memory. There's also > use example of this new interface by xtensa. I haven't actually ported this to MIPS but it certainly appears to be the right framework to get highmem aliases handled on MIPS, too. Though I still consider increasing PAGE_SIZE to 16k the preferable solution because it will entirly do away with cache aliases. Thanks, Ralf