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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 113D7C432BE for ; Mon, 16 Aug 2021 14:00:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE73663307 for ; Mon, 16 Aug 2021 14:00:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230041AbhHPOAj (ORCPT ); Mon, 16 Aug 2021 10:00:39 -0400 Received: from foss.arm.com ([217.140.110.172]:45098 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231297AbhHPN5r (ORCPT ); Mon, 16 Aug 2021 09:57:47 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 72AAB6D; Mon, 16 Aug 2021 06:57:15 -0700 (PDT) Received: from e123427-lin.arm.com (unknown [10.57.42.29]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 167723F66F; Mon, 16 Aug 2021 06:57:13 -0700 (PDT) From: Lorenzo Pieralisi To: linux-pci@vger.kernel.org, "marek.vasut@gmail.com" Cc: Lorenzo Pieralisi , linux-renesas-soc@vger.kernel.org, Bjorn Helgaas , Geert Uytterhoeven , Wolfram Sang , Yoshihiro Shimoda , Marek Vasut Subject: Re: [PATCH V7] PCI: rcar: Add L1 link state fix into data abort hook Date: Mon, 16 Aug 2021 14:57:04 +0100 Message-Id: <162912206617.7498.10791199140703646138.b4-ty@arm.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210815181650.132579-1-marek.vasut@gmail.com> References: <20210815181650.132579-1-marek.vasut@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org On Sun, 15 Aug 2021 20:16:50 +0200, marek.vasut@gmail.com wrote: > When the link is in L1, hardware should return it to L0 > automatically whenever a transaction targets a component on the > other end of the link (PCIe r5.0, sec 5.2). > > The R-Car PCIe controller doesn't handle this transition correctly. > If the link is not in L0, an MMIO transaction targeting a downstream > device fails, and the controller reports an ARM imprecise external > abort. > > [...] Applied to pci/rcar, thanks! [1/1] PCI: rcar: Add L1 link state fix into data abort hook https://git.kernel.org/lpieralisi/pci/c/a115b1bd3a Thanks, Lorenzo