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=-3.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 DBEA3C67872 for ; Thu, 13 Dec 2018 10:33:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A24C820811 for ; Thu, 13 Dec 2018 10:33:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="JLHOCAhg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A24C820811 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=broadcom.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 S1728605AbeLMKdS (ORCPT ); Thu, 13 Dec 2018 05:33:18 -0500 Received: from mail-wr1-f66.google.com ([209.85.221.66]:33158 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727374AbeLMKdS (ORCPT ); Thu, 13 Dec 2018 05:33:18 -0500 Received: by mail-wr1-f66.google.com with SMTP id c14so1461659wrr.0 for ; Thu, 13 Dec 2018 02:33:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id; bh=LtSfmEgwkXLipM2oN/tEJZ5i0J/LLJlpLAEY0OfDiU0=; b=JLHOCAhgzFEHqBtVgFMSU0jr0FAQyMNzUj1aOGT/ZKypZXOwMexKpagmP70EPmgHAe 1CnUr3h+ie1j36w7LOjwn88K8z1eRP1js/WvHpquqqvRIjlvse+hx0smY33i7evJyosl CUlQTukUHKH/vmSGSg9T8KB54MenF3tEZHNyE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=LtSfmEgwkXLipM2oN/tEJZ5i0J/LLJlpLAEY0OfDiU0=; b=GWWAVjKXIFrqwXnc+r/aIiHQSMjdnu0vMx9Km6RMLg/g90q89AZC1HJqHXe3jhiQ4a E3ogENHLq2ssJGH54hBUThLRhmZunNRTtHbxVZXb/ljqOs26kVbvC2UZKQF1n5Oopy/p 8IZ+hfdglw0FZsjbzrbVvx/Z//Nvl5AXAg+rVaSVN2crYQUk5xF6Uwe2EfAAugX1bRwh y14rbp58gCt1tXM/jL8kOR2WKYaWJE0zep0/54Vt9jqWcVXAS7RtB4Sqc7BIYDLW3i+Z EWuIHawB9qICuxAalRTSZA0pVj//4Pcushq9ecWWZFoBPL0SMpezu6z92PfUp3PWRruG fiew== X-Gm-Message-State: AA+aEWbgn3cC6lD2mYDsAB9icPaqon+ClDfQ+kjHwr9KecyMIlv/W5x0 rWPANwUncBij0XfjN8XQ9IsOhA== X-Google-Smtp-Source: AFSGD/WykvkLgnLRFD8Su9Um5xoJbrYFafEDHsVSgEWPR4/QPDMlQEYiPI92nrS8tIAQsPzUWWae7g== X-Received: by 2002:adf:e407:: with SMTP id g7mr19801956wrm.277.1544697196160; Thu, 13 Dec 2018 02:33:16 -0800 (PST) Received: from mannams-OptiPlex-7010.dhcp.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id x76sm3327058wmd.27.2018.12.13.02.33.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 13 Dec 2018 02:33:15 -0800 (PST) From: Srinath Mannam To: Bjorn Helgaas , Robin Murphy , poza@codeaurora.org, Joerg Roedel , Lorenzo Pieralisi , Ray Jui Cc: bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Srinath Mannam Subject: [PATCH v2 0/3] PCIe Host request to reserve IOVA Date: Thu, 13 Dec 2018 16:02:51 +0530 Message-Id: <1544697174-6029-1-git-send-email-srinath.mannam@broadcom.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Few SOCs have limitation that their PCIe host can't allow few inbound address ranges. Allowed inbound address ranges are listed in dma-ranges DT property and this address ranges are required to do IOVA mapping. Remaining address ranges have to be reserved in IOVA mapping. PCIe Host driver of those SOCs has to list all address ranges which have to reserve their IOVA address into PCIe host bridge resource entry list. IOMMU framework will reserve these IOVAs while initializing IOMMU domain. This patch set is based on Linux-4.19-rc1. Changes from v1: - Addressed Oza review comments. Srinath Mannam (3): PCI: Add dma-resv window list iommu/dma: IOVA reserve for PCI host reserve address list PCI: iproc: Add dma reserve resources to host drivers/iommu/dma-iommu.c | 8 ++++++ drivers/pci/controller/pcie-iproc.c | 51 ++++++++++++++++++++++++++++++++++++- drivers/pci/probe.c | 3 +++ include/linux/pci.h | 1 + 4 files changed, 62 insertions(+), 1 deletion(-) -- 2.7.4