From patchwork Thu Jun 2 06:10:02 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongji Xie X-Patchwork-Id: 9149215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 46A8C60221 for ; Thu, 2 Jun 2016 06:17:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 390C525D97 for ; Thu, 2 Jun 2016 06:17:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2DBF0269DA; Thu, 2 Jun 2016 06:17:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD30D25D97 for ; Thu, 2 Jun 2016 06:17:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752895AbcFBGRs (ORCPT ); Thu, 2 Jun 2016 02:17:48 -0400 Received: from e35.co.us.ibm.com ([32.97.110.153]:40908 "EHLO e35.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751628AbcFBGOc (ORCPT ); Thu, 2 Jun 2016 02:14:32 -0400 Received: from localhost by e35.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Thu, 2 Jun 2016 00:14:25 -0600 X-IBM-Helo: d03dlp03.boulder.ibm.com X-IBM-MailFrom: xyjxie@linux.vnet.ibm.com X-IBM-RcptTo: joro@8bytes.org; David.Laight@ACULAB.COM; will.deacon@arm.com; mpe@ellerman.id.au; bhelgaas@google.com; kevin.tian@intel.com; benh@kernel.crashing.org; eric.auger@linaro.org; iommu@lists.linux-foundation.org; linuxppc-dev@lists.ozlabs.org; aik@ozlabs.ru; alistair@popple.id.au; alex.williamson@redhat.com; ruscur@russell.cc; paulus@samba.org; kvm@vger.kernel.org; linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org Received: from b03cxnp07029.gho.boulder.ibm.com (b03cxnp07029.gho.boulder.ibm.com [9.17.130.16]) by d03dlp03.boulder.ibm.com (Postfix) with ESMTP id 7D0CA19D804A; Thu, 2 Jun 2016 00:14:05 -0600 (MDT) Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u526ELb834996426; Wed, 1 Jun 2016 23:14:24 -0700 Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8B11378037; Thu, 2 Jun 2016 00:14:24 -0600 (MDT) Received: from localhost (unknown [9.186.9.18]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP id 4496278038; Thu, 2 Jun 2016 00:14:24 -0600 (MDT) From: Yongji Xie To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, iommu@lists.linux-foundation.org Cc: alex.williamson@redhat.com, bhelgaas@google.com, aik@ozlabs.ru, benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au, joro@8bytes.org, warrier@linux.vnet.ibm.com, zhong@linux.vnet.ibm.com, nikunj@linux.vnet.ibm.com, eric.auger@linaro.org, will.deacon@arm.com, gwshan@linux.vnet.ibm.com, alistair@popple.id.au, ruscur@russell.cc, kevin.tian@intel.com, David.Laight@ACULAB.COM Subject: [RESEND PATCH v2 5/6] pci-ioda: Set PCI_BUS_FLAGS_MSI_REMAP for IODA host bridge Date: Thu, 2 Jun 2016 14:10:02 +0800 Message-Id: <1464847803-22756-6-git-send-email-xyjxie@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1464847803-22756-1-git-send-email-xyjxie@linux.vnet.ibm.com> References: <1464847803-22756-1-git-send-email-xyjxie@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16060206-0013-0000-0000-000042528AA2 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Any IODA host bridge have the capability of IRQ remapping. So we set PCI_BUS_FLAGS_MSI_REMAP when this kind of host birdge is detected. Signed-off-by: Yongji Xie Reviewed-by: Alexey Kardashevskiy --- arch/powerpc/platforms/powernv/pci-ioda.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index c5baaf3..9011268 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -3094,6 +3094,12 @@ static void pnv_pci_ioda_fixup(void) pnv_npu_ioda_fixup(); } +int pnv_pci_ioda_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + bridge->bus->bus_flags |= PCI_BUS_FLAGS_MSI_REMAP; + return 0; +} + /* * Returns the alignment for I/O or memory windows for P2P * bridges. That actually depends on how PEs are segmented. @@ -3395,6 +3401,8 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, */ ppc_md.pcibios_fixup = pnv_pci_ioda_fixup; + ppc_md.pcibios_root_bridge_prepare = pnv_pci_ioda_root_bridge_prepare; + if (phb->type == PNV_PHB_NPU) hose->controller_ops = pnv_npu_ioda_controller_ops; else