[PATCH kernel 2/3] pci-ioda: Set PCI_BUS_FLAGS_MSI_REMAP for IODA host bridge
From: Alexey Kardashevskiy <hidden>
Date: 2017-06-15 05:48:57
Also in:
kvm, linux-pci, lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
From: Yongji Xie <redacted> 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 <redacted> Signed-off-by: Alexey Kardashevskiy <redacted> --- 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 283caf1070c9..b6bda1918273 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c@@ -3177,6 +3177,12 @@ static void pnv_pci_ioda_fixup(void) #endif } +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.
@@ -3861,6 +3867,8 @@ 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 {
--
2.11.0