From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Tue, 30 Aug 2016 09:42:45 +0100 Subject: [PATCH] irqchip/gicv3-its: Enable cacheable attribute Read-allocate hints In-Reply-To: <11225da6-559e-c1bd-2ba5-a941595d6532@codeaurora.org> References: <1468294608-30619-1-git-send-email-shankerd@codeaurora.org> <5784A5C8.4080103@arm.com> <5784F188.3010609@codeaurora.org> <11225da6-559e-c1bd-2ba5-a941595d6532@codeaurora.org> Message-ID: <57C54705.4070209@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 29/08/16 16:35, Shanker Donthineni wrote: > Marc, > > Are you planning to push this change? I talked to Qualcomm ITS hw team > and they told me nice to have this change even though we see a small gain. Hi Shanker, As I asked before, I'd like to know what is the actual gain on real HW, and how you measured it, so that I can try and make sure this doesn't introduce regressions on other implementations. If it does, then we'll probably have to quirk it. Thanks, M. -- Jazz is not dead. It just smells funny... From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754931AbcH3Imx (ORCPT ); Tue, 30 Aug 2016 04:42:53 -0400 Received: from foss.arm.com ([217.140.101.70]:33848 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751011AbcH3Imt (ORCPT ); Tue, 30 Aug 2016 04:42:49 -0400 Subject: Re: [PATCH] irqchip/gicv3-its: Enable cacheable attribute Read-allocate hints To: shankerd@codeaurora.org, linux-kernel , linux-arm-kernel References: <1468294608-30619-1-git-send-email-shankerd@codeaurora.org> <5784A5C8.4080103@arm.com> <5784F188.3010609@codeaurora.org> <11225da6-559e-c1bd-2ba5-a941595d6532@codeaurora.org> Cc: Thomas Gleixner , Jason Cooper , Vikram Sethi , Philip Elcan From: Marc Zyngier X-Enigmail-Draft-Status: N1110 Organization: ARM Ltd Message-ID: <57C54705.4070209@arm.com> Date: Tue, 30 Aug 2016 09:42:45 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.7.0 MIME-Version: 1.0 In-Reply-To: <11225da6-559e-c1bd-2ba5-a941595d6532@codeaurora.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29/08/16 16:35, Shanker Donthineni wrote: > Marc, > > Are you planning to push this change? I talked to Qualcomm ITS hw team > and they told me nice to have this change even though we see a small gain. Hi Shanker, As I asked before, I'd like to know what is the actual gain on real HW, and how you measured it, so that I can try and make sure this doesn't introduce regressions on other implementations. If it does, then we'll probably have to quirk it. Thanks, M. -- Jazz is not dead. It just smells funny...