From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B5ADC4646D for ; Mon, 6 Aug 2018 20:31:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 31F3521A33 for ; Mon, 6 Aug 2018 20:31:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 31F3521A33 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387924AbeHFWmG (ORCPT ); Mon, 6 Aug 2018 18:42:06 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:34110 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1732544AbeHFWmG (ORCPT ); Mon, 6 Aug 2018 18:42:06 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6866887A74; Mon, 6 Aug 2018 20:31:20 +0000 (UTC) Received: from file01.intranet.prod.int.rdu2.redhat.com (file01.intranet.prod.int.rdu2.redhat.com [10.11.5.7]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 19EDA101043E; Mon, 6 Aug 2018 20:31:20 +0000 (UTC) Received: from file01.intranet.prod.int.rdu2.redhat.com (localhost [127.0.0.1]) by file01.intranet.prod.int.rdu2.redhat.com (8.14.4/8.14.4) with ESMTP id w76KVK7I018379; Mon, 6 Aug 2018 16:31:20 -0400 Received: from localhost (mpatocka@localhost) by file01.intranet.prod.int.rdu2.redhat.com (8.14.4/8.14.4/Submit) with ESMTP id w76KVJ5g018370; Mon, 6 Aug 2018 16:31:19 -0400 X-Authentication-Warning: file01.intranet.prod.int.rdu2.redhat.com: mpatocka owned process doing -bs Date: Mon, 6 Aug 2018 16:31:18 -0400 (EDT) From: Mikulas Patocka X-X-Sender: mpatocka@file01.intranet.prod.int.rdu2.redhat.com To: Ard Biesheuvel cc: Robin Murphy , Thomas Petazzoni , Joao Pinto , linux-pci , Jingoo Han , Will Deacon , Russell King , Linux Kernel Mailing List , Matt Sealey , Catalin Marinas , linux-arm-kernel Subject: Re: framebuffer corruption due to overlapping stp instructions on arm64 In-Reply-To: Message-ID: References: <20180803094129.GB17798@arm.com> <99fff4fe-afa9-f12f-a518-472a9dd1c530@arm.com> User-Agent: Alpine 2.02 (LRH 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Mon, 06 Aug 2018 20:31:20 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Mon, 06 Aug 2018 20:31:20 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'mpatocka@redhat.com' RCPT:'' Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 6 Aug 2018, Ard Biesheuvel wrote: > > Unfortunatelly, it doesn't work. I verified that the bit is set after > > booting Linux, but the memcpy corruption was still present. > > > > I also tried the other chicken bits, it slowed down the system noticeably, > > but had no effect on the memcpy corruption. > > > > OK, it was worth a shot > > Let's wait and see if Marcin has any results. BTW. is there documentation for that DesignWare PCIe controller somewhere? Mikulas From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: Date: Mon, 6 Aug 2018 16:31:18 -0400 (EDT) From: Mikulas Patocka To: Ard Biesheuvel Subject: Re: framebuffer corruption due to overlapping stp instructions on arm64 In-Reply-To: Message-ID: References: <20180803094129.GB17798@arm.com> <99fff4fe-afa9-f12f-a518-472a9dd1c530@arm.com> MIME-Version: 1.0 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Petazzoni , Joao Pinto , Catalin Marinas , linux-pci , Will Deacon , Russell King , Linux Kernel Mailing List , Matt Sealey , Jingoo Han , Robin Murphy , linux-arm-kernel Content-Type: text/plain; charset="us-ascii" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+bjorn=helgaas.com@lists.infradead.org List-ID: On Mon, 6 Aug 2018, Ard Biesheuvel wrote: > > Unfortunatelly, it doesn't work. I verified that the bit is set after > > booting Linux, but the memcpy corruption was still present. > > > > I also tried the other chicken bits, it slowed down the system noticeably, > > but had no effect on the memcpy corruption. > > > > OK, it was worth a shot > > Let's wait and see if Marcin has any results. BTW. is there documentation for that DesignWare PCIe controller somewhere? Mikulas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 From: mpatocka@redhat.com (Mikulas Patocka) Date: Mon, 6 Aug 2018 16:31:18 -0400 (EDT) Subject: framebuffer corruption due to overlapping stp instructions on arm64 In-Reply-To: References: <20180803094129.GB17798@arm.com> <99fff4fe-afa9-f12f-a518-472a9dd1c530@arm.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, 6 Aug 2018, Ard Biesheuvel wrote: > > Unfortunatelly, it doesn't work. I verified that the bit is set after > > booting Linux, but the memcpy corruption was still present. > > > > I also tried the other chicken bits, it slowed down the system noticeably, > > but had no effect on the memcpy corruption. > > > > OK, it was worth a shot > > Let's wait and see if Marcin has any results. BTW. is there documentation for that DesignWare PCIe controller somewhere? Mikulas