From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yongji Xie Subject: [PATCH 4/5] pci-ioda: Set PCI_BUS_FLAGS_MSI_REMAP for IODA host bridge Date: Wed, 27 Apr 2016 20:43:29 +0800 Message-ID: <1461761010-5452-5-git-send-email-xyjxie@linux.vnet.ibm.com> References: <1461761010-5452-1-git-send-email-xyjxie@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1461761010-5452-1-git-send-email-xyjxie-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Cc: alistair-Y4h6yKqj69EXC2x5gXVKYQ@public.gmane.org, nikunj-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, zhong-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, eric.auger-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, aik-sLpHqDYs0B2HXe+LvDLADg@public.gmane.org, mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org, ruscur-3Su/lFKaw5ejKv3TNrM5DQ@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, gwshan-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, warrier-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, David.Laight-ZS65k/vG3HxXrIkS9f7CXA@public.gmane.org, paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org, benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org, bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, Yongji Xie List-Id: iommu@lists.linux-foundation.org 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 --- 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 f90dc04..9557638 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -3080,6 +3080,12 @@ 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. @@ -3364,6 +3370,8 @@ 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 -- 1.7.9.5