Re: [PATCH 4/5] pci-ioda: Set PCI_BUS_FLAGS_MSI_REMAP for IODA host bridge

[Alexey Kardashevskiy]

On 04/27/2016 10:43 PM, Yongji Xie wrote:
> 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 <xyjxie@xxxxxxxxxxxxxxxxxx>


Reviewed-by: Alexey Kardashevskiy <aik@xxxxxxxxx>


> ---
>  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


--
Alexey