On Fri, Feb 15, 2019 at 11:48:15AM +1100, Oliver O'Halloran wrote: > Add a helper to find the pci_controller structure based on the domain > number / phb id. > > Signed-off-by: Oliver O'Halloran <ooh...@gmail.com>
Reviewed-by: Sam Bobroff <sbobr...@linux.ibm.com>
> ---
> v2: Renamed pci_find_hose_for_domain() to
> pci_find_controller_for_domain()
> ---
> arch/powerpc/include/asm/pci-bridge.h | 2 ++
> arch/powerpc/kernel/pci-common.c | 11 +++++++++++
> 2 files changed, 13 insertions(+)
>
> diff --git a/arch/powerpc/include/asm/pci-bridge.h
> b/arch/powerpc/include/asm/pci-bridge.h
> index aee4fcc24990..feea9534a015 100644
> --- a/arch/powerpc/include/asm/pci-bridge.h
> +++ b/arch/powerpc/include/asm/pci-bridge.h
> @@ -274,6 +274,8 @@ extern int pcibios_map_io_space(struct pci_bus *bus);
> extern struct pci_controller *pci_find_hose_for_OF_device(
> struct device_node* node);
>
> +extern struct pci_controller *pci_find_controller_for_domain(int domain_nr);
> +
> /* Fill up host controller resources from the OF node */
> extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
> struct device_node *dev, int primary);
> diff --git a/arch/powerpc/kernel/pci-common.c
> b/arch/powerpc/kernel/pci-common.c
> index 88e4f69a09e5..21eeeabb3e0e 100644
> --- a/arch/powerpc/kernel/pci-common.c
> +++ b/arch/powerpc/kernel/pci-common.c
> @@ -357,6 +357,17 @@ struct pci_controller*
> pci_find_hose_for_OF_device(struct device_node* node)
> return NULL;
> }
>
> +struct pci_controller *pci_find_controller_for_domain(int domain_nr)
> +{
> + struct pci_controller *hose;
> +
> + list_for_each_entry(hose, &hose_list, list_node)
> + if (hose->global_number == domain_nr)
> + return hose;
> +
> + return NULL;
> +}
> +
> /*
> * Reads the interrupt pin to determine if interrupt is use by card.
> * If the interrupt is used, then gets the interrupt line from the
> --
> 2.20.1
>
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