Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423189Ab3FUFax (ORCPT ); Fri, 21 Jun 2013 01:30:53 -0400 Received: from hqemgate04.nvidia.com ([216.228.121.35]:18123 "EHLO hqemgate04.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754159Ab3FUFau convert rfc822-to-8bit (ORCPT ); Fri, 21 Jun 2013 01:30:50 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Thu, 20 Jun 2013 22:30:25 -0700 From: Jay Agarwal To: "'Stephen Warren'" CC: "linux@arm.linux.org.uk" , "thierry.reding@avionic-design.de" , "bhelgaas@google.com" , Laxman Dewangan , "olof@lixom.net" , Hiroshi Doyu , Prashant Gaikwad , "mturquette@linaro.org" , Peter De Schrijver , "linux-arm-kernel@lists.infradead.org" , "linux-tegra@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , Juha Tukkinen , Krishna Thota Date: Fri, 21 Jun 2013 11:00:20 +0530 Subject: RE: [PATCH V1] ARM: dts: tegra: Modify pcie memory space size Thread-Topic: [PATCH V1] ARM: dts: tegra: Modify pcie memory space size Thread-Index: Ac5t0rMsO0OQGf37SN+CxIu+wgXr/AAbXJEw Message-ID: References: <1371712491-31070-1-git-send-email-jagarwal@nvidia.com> <51C32CC7.5010109@wwwdotorg.org> In-Reply-To: <51C32CC7.5010109@wwwdotorg.org> Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1344 Lines: 27 > On 06/20/2013 01:14 AM, Jay Agarwal wrote: > > - decrease non-prefetch memory size to 128 MB > > - increase prefetch memory size to 384 MB > > - above change is done because most pcie devices > > prefetch memory size requirement is quite higher > > compared to non-prefetch memory space. > > It's possible this change won't be suitable for all applications. People may > simply need to adjust their DT based on what they want to connect. > Still, this patch probably biases things in the correct way for now. > Longer term, we might want to investigate dynamically sizing the windows > in order to support arbitrary attached devices, in much the same way as the > Marvell code does/will in order to conserve physical/bus address space for > their multiple controllers. > > However, this change allows me to correctly enumerate a particular GPU I > have plugged into my Harmony board, and assign all the BARs, so: > > Tested-by: Stephen Warren > Thierry, Could you please integrate this change also to your branch if review is done. Please let me know once it is done. -- 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/