From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sinan Kaya Subject: Re: [PATCH V2] PCI: Do not enable extended tags on pre-dated (v1.x) systems Date: Mon, 10 Jul 2017 21:41:39 -0400 Message-ID: <70e56020-ec7f-9752-7236-7d4157c07205@codeaurora.org> References: <1499439193-16628-1-git-send-email-okaya@codeaurora.org> <20170710230911.GH5610@bhelgaas-glaptop.roam.corp.google.com> <5f5119fd-64d5-5e7c-fa50-54ac6e6a36b6@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5f5119fd-64d5-5e7c-fa50-54ac6e6a36b6@codeaurora.org> Content-Language: en-US Sender: linux-pci-owner@vger.kernel.org To: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, timur@codeaurora.org, wim.ten.have@oracle.com, linux-arm-msm@vger.kernel.org, Bjorn Helgaas , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: linux-arm-msm@vger.kernel.org One more question: On 7/10/2017 8:20 PM, Sinan Kaya wrote: > Sure, I can change to blacklist. I'll not enable it unless the device is blacklisted > via quirks. Since the quirk is at the completer, are you OK with walking the list and clearing the extended tags across the tree when at least one device with a quirk is found? Would you look for another solution? I was told that Linux assumes peer-to-peer is possible by default on another thread. -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.