From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757611AbcEEQjm (ORCPT ); Thu, 5 May 2016 12:39:42 -0400 Received: from foss.arm.com ([217.140.101.70]:50849 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755051AbcEEQjl (ORCPT ); Thu, 5 May 2016 12:39:41 -0400 Subject: Re: [PATCH v3] irqchip/gic-v2m: Add workaround for Broadcom NS2 GICv2m erratum To: Ray Jui , Thomas Gleixner , Jason Cooper References: <1462465921-3220-1-git-send-email-ray.jui@broadcom.com> <1462465921-3220-2-git-send-email-ray.jui@broadcom.com> Cc: linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, Alex Barba From: Marc Zyngier Organization: ARM Ltd Message-ID: <572B7749.3070708@arm.com> Date: Thu, 5 May 2016 17:39:37 +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: <1462465921-3220-2-git-send-email-ray.jui@broadcom.com> 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 05/05/16 17:32, Ray Jui wrote: > Alex Barba discovered Broadcom NS2 GICv2m > implementation has an erratum where the MSI data needs to be the SPI > number subtracted by an offset of 32, for the correct MSI interrupt > to be triggered. > > Here we are adding the workaround based on readings from the MSI_IIDR > register, which contains a value unique to Broadcom NS2 GICv2m > > Reported-by: Alex Barba > Signed-off-by: Ray Jui Acked-by: Marc Zyngier I'll queue that for 4.7. Thanks, M. -- Jazz is not dead. It just smells funny...